Waste gas collecting hood for waste gas treatment

By adjusting the direction and height of the exhaust gas treatment equipment through the support base and cylinder system, and combining the transmission gears and scrapers to clean the dust, the problem of difficult adjustment of the air intake hood position and dust accumulation is solved, thereby improving the gas collection efficiency and practicality of the exhaust gas collection hood.

CN224128176UActive Publication Date: 2026-04-17GUANGDONG HENGRUI YIKE ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG HENGRUI YIKE ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-05-14
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing exhaust gas collection hoods suffer from low collection efficiency due to the difficulty in adjusting the position of the intake hood, and dust easily accumulates on the inside of the intake hood, affecting the intake efficiency and making them impractical.

Method used

By installing a support base, support column, support platform and cylinder under the exhaust gas treatment equipment, the equipment is rotated by using a lifting plate, and the direction and height of the gas collection hood can be adjusted by adjusting the distance between the gas collection pipe and the air inlet by using a threaded rod. At the same time, transmission gears and scrapers are installed in the gas collection pipe and the hood body to clean dust.

Benefits of technology

It improves the gas collection efficiency of the exhaust gas collection hood, reduces the impact of dust on the equipment, and enhances its practicality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224128176U_ABST
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Abstract

The utility model discloses a waste gas collecting hood for waste gas treatment. The waste gas collecting hood comprises a supporting seat, waste gas treatment equipment is arranged above the supporting seat; a supporting column is fixedly connected to the middle of the interior of the supporting seat, and a lifting plate is slidably connected to the outer side of the supporting column; wherein the other side of the waste gas treatment equipment is fixedly connected with a gas inlet, one side of the inner wall of the gas inlet is rotationally connected with a threaded rod, and a connecting block is arranged on the outer side of the threaded rod; wherein one side of the connecting block is fixedly connected with a gas collecting pipe, one side of the gas collecting pipe is rotationally connected with a transmission gear, one side of the transmission gear is in meshed connection with a driven gear, one side of the driven gear is provided with a scraping strip, one side of the scraping strip is in sliding connection with a gas collecting hood body, and the waste gas treatment equipment is driven by the lifting plate to ascend; the direction, height or length of the gas collecting hood body can be conveniently adjusted according to the position of the waste gas outlet, so that the gas collecting efficiency of the waste gas collecting hood is higher.
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Description

Technical Field

[0001] This utility model relates to the field of waste gas collection technology, specifically a waste gas collection hood used in waste gas treatment. Background Technology

[0002] Waste gas treatment is one of the core tasks of environmental governance, and its role spans multiple dimensions, including environmental protection, health security, economic development, and global cooperation. Through technological innovation and policy guidance, waste gas treatment can not only effectively improve the current environmental quality but also leave a sustainable ecological foundation for future generations.

[0003] Patent document CN220715211U discloses a waste gas collection hood for waste gas treatment, including an air inlet assembly, a purging assembly, a filter belt assembly, a drive assembly, and a support assembly. The air inlet assembly is installed throughout the housing, and the purging assembly is installed inside the housing and adjacent to the air inlet assembly. The purging assembly has a quick connector installed inside and through the upper side of the housing. The filter belt assembly is installed inside the housing and rotates through the air inlet assembly and the purging assembly. The drive assembly is installed inside the housing and adjacent to the purging assembly. The support assembly has a telescopic component and is located on the lower side of the housing. Its function is to filter the incoming waste gas. The filter belt assembly can be recycled, reducing the need for manual filter replacement. The internal purging device also greatly increases the service life of the filter. However, this patent still has the following problems in actual use:

[0004] This waste gas collection hood collects waste gas by setting up an air intake hood. However, because the position of the air intake hood is difficult to adjust, it is difficult to connect the air intake hood with the position of the waste gas outlet during use. This results in low gas collection efficiency and inconvenience in using the hood. Furthermore, dust tends to accumulate on the inside of the air intake hood during use, which can affect the inner diameter of the air intake hood and reduce its air intake efficiency. Therefore, the practicality of this waste gas collection hood used for waste gas treatment is poor.

[0005] Therefore, a waste gas collection hood for waste gas treatment is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a waste gas collection hood for waste gas treatment, in order to solve the problems mentioned in the background art. The current waste gas collection hood collects waste gas by setting an air inlet hood, but the position of the air inlet hood is difficult to adjust, making it difficult to connect with the position of the waste gas outlet during use. This results in low gas collection efficiency and inconvenience in the use of the hood. In addition, dust is prone to accumulate on the inside of the air inlet hood during use, which can affect the inner diameter of the air inlet hood and the air intake efficiency. Therefore, the practicality of the waste gas collection hood for waste gas treatment is poor.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a waste gas collection hood for waste gas treatment, including a support base;

[0008] A cylinder is installed in the middle of the support base, an exhaust gas treatment device is installed above the support base, and a motor is installed on one side of the exhaust gas treatment device.

[0009] Also includes:

[0010] A support column is fixedly connected in the middle inside the support base, a support platform is fixedly connected to the top of the support column, a lifting plate is slidably connected to the inner side of the support base, a clearance groove is opened in the middle of the lifting plate, and a support frame is fixedly connected to one side of the top of the lifting plate.

[0011] The exhaust gas treatment equipment has an outlet fixedly connected to one side and an inlet fixedly connected to the other side. A sliding groove is provided on one side of the inner wall of the inlet, a dustproof strip is fixedly connected to one side of the sliding groove, a threaded rod is threadedly connected to the middle of the sliding groove, a connecting block is provided on the outer side of the threaded rod, and a guide rod is fixedly connected to the other side of the inner wall of the inlet.

[0012] The connecting block has a gas collecting pipe fixedly connected to one side, a transmission gear rotatably connected to one side of the gas collecting pipe, a driven gear meshing with one side of the transmission gear, a ball bearing rotatably connected to one side of the driven gear, a dustproof ring fixedly connected to the inner side of the driven gear, a connecting frame fixedly connected to one side of the driven gear, a scraper fixedly connected to one side of the connecting frame, and a gas collecting hood body slidably connected to one side of the scraper.

[0013] Preferably, the lifting plate is slidably connected to the outside of the support column through a relief groove, the cylinders are symmetrically arranged on both sides of the support column, and the top of the cylinder is fixedly connected to the bottom surface of the lifting plate to facilitate the positioning of the cylinder.

[0014] Preferably, the support frame is symmetrically arranged on both sides of the support column, the waste gas treatment equipment is rotatably connected to the middle of the upper end of the two sets of support frames, and the top surface of the support platform overlaps with one side of the waste gas treatment equipment, which facilitates the connection of the support frame to the waste gas treatment equipment.

[0015] Preferably, the sliding groove and the dustproof strip are symmetrically arranged on the inner side of the air inlet, and the guide rod is fixedly connected to the sliding groove on the side away from the threaded rod, which facilitates the positioning of the threaded rod and the guide rod.

[0016] Preferably, the connecting blocks are symmetrically fixedly connected to one side of the gas collecting pipe. One set of the connecting blocks is threadedly connected to the threaded rod, and the other set of the connecting blocks is slidably connected to the guide rod, which facilitates the connection between the connecting blocks and the threaded rod or the guide rod.

[0017] Preferably, the driven gear is rotatably connected to the inner wall of one end of the air collecting pipe via ball bearings, the dustproof ring is slidably connected to the side of the air collecting pipe near the inner wall of the driven gear, and one end of the transmission gear is fixedly connected to the output shaft of the motor to facilitate the transmission of the driven gear.

[0018] Preferably, the end of the gas collecting pipe away from the air inlet is fixedly connected to one end of the gas collecting hood body. The connecting frame is configured in two sets, with the two sets of connecting frames being parallel to the inner walls of the gas collecting pipe and the gas collecting hood body, respectively. The scraper is slidably connected to the inner walls of the gas collecting pipe and the gas collecting hood body, respectively, to facilitate the positioning of the scraper.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This exhaust gas collection hood for waste gas treatment uses a lifting plate to drive the waste gas treatment equipment to rise, facilitating the rotation of the equipment. This allows for easy adjustment of the direction of the hood body according to the exhaust gas outlet position. Furthermore, the threaded rod adjusts the distance between the collection pipe and the inlet, allowing for easy adjustment of the height or length of the hood body according to the exhaust gas outlet position. This results in higher gas collection efficiency. Additionally, cleaning the dust from the collection pipe and the inner wall of the hood body reduces the impact of dust on their operation. The specific details are as follows:

[0020] 1. This exhaust gas collection hood for waste gas treatment uses a support base, support column, support platform, cylinder, and lifting plate installed below the waste gas treatment equipment. The lifting plate drives the waste gas treatment equipment to rise, facilitating the rotation of the equipment. This allows for easy adjustment of the direction of the hood body according to the exhaust gas outlet position. Furthermore, by installing a threaded rod, connecting block, collection pipe, and hood body on one side of the collection pipe, the threaded rod adjusts the distance between the collection pipe and the air inlet, allowing for easy adjustment of the height or length of the hood body according to the exhaust gas outlet position. This results in higher gas collection efficiency and greater practicality of the exhaust gas collection hood for waste gas treatment.

[0021] 2. The exhaust gas collection hood used in exhaust gas treatment facilitates the cleaning of dust on the inner wall of the collection pipe and the hood body by setting transmission gears, driven gears, connecting frames and scrapers on the inner side of the collection pipe and the hood body. This reduces the impact of dust on the use of the collection pipe and the hood body, thus making the exhaust gas collection hood used in exhaust gas treatment more practical. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the front cross-section structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the flipping structure of this utility model;

[0024] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 4 This utility model Figure 1 Enlarged structural diagram at point B;

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the support base of this utility model.

[0027] In the diagram: 1. Support base; 2. Support column; 3. Support platform; 4. Cylinder; 5. Lifting plate; 6. Clearance groove; 7. Support frame; 8. Waste gas treatment equipment; 9. Air outlet; 10. Air inlet; 11. Sliding groove; 12. Dustproof strip; 13. Threaded rod; 14. Connecting block; 15. Gas collection pipe; 16. Motor; 17. Transmission gear; 18. Driven gear; 19. Ball bearing; 20. Dustproof ring; 21. Connecting frame; 22. Scraper; 23. Gas collection hood body; 24. Guide rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0029] Please see Figures 1-5 This utility model provides a technical solution: a waste gas collection hood for waste gas treatment, including a support base 1; a cylinder 4 is installed in the middle of the support base 1, a waste gas treatment device 8 is arranged above the support base 1, and a motor 16 is installed on one side of the waste gas treatment device 8; it also includes: a support column 2 is fixedly connected to the middle of the inside of the support base 1, a support platform 3 is fixedly connected to the top of the support column 2, a lifting plate 5 is slidably connected to the inner side of the support base 1, a clearance groove 6 is opened in the middle of the lifting plate 5, and a support frame 7 is fixedly connected to one side of the top of the lifting plate 5; the lifting plate 5 is slidably connected to the outer side of the support column 2 through the clearance groove 6, and the cylinders 4 are symmetrically arranged on both sides of the support column 2. On the side, the top of the cylinder 4 is fixedly connected to the bottom surface of the lifting plate 5; the support frame 7 is symmetrically arranged on both sides of the support column 2, and the exhaust gas treatment equipment 8 is rotatably connected to the middle of the upper end of the two sets of support frames 7. The top surface of the support platform 3 overlaps with one side of the exhaust gas treatment equipment 8. By setting the lifting plate 5, it is convenient to adjust the height of the exhaust gas treatment equipment 8 by driving the support frame 7 through the lifting plate 5, thereby realizing the separation of the support platform 3 and the exhaust gas treatment equipment 8, making it convenient to flip the exhaust gas treatment equipment 8, thereby making it convenient to adjust the direction of the gas collection hood body 23, and making it easier to connect the gas collection hood body 23 to the exhaust gas outlet, thereby improving the exhaust gas collection efficiency.

[0030] The exhaust gas treatment device 8 has an outlet 9 fixedly connected to one side and an inlet 10 fixedly connected to the other side. A sliding groove 11 is provided on one side of the inner wall of the inlet 10, and a dustproof strip 12 is fixedly connected to one side of the sliding groove 11. A threaded rod 13 is rotatably connected to the middle of the sliding groove 11, and a connecting block 14 is provided on the outer side of the threaded rod 13. A guide rod 24 is fixedly connected to the other side of the inner wall of the inlet 10. The sliding groove 11 and the dustproof strip 12 are symmetrically arranged inside the inlet 10. The guide rod 24 is fixedly connected to the sliding groove 11 on the side away from the threaded rod 13. The connecting blocks 14 are symmetrically fixedly connected to one side of the gas collecting pipe 15. One set of connecting blocks 14 is threadedly connected to the threaded rod 13, and the other set of connecting blocks 14 is slidably connected to the guide rod 24. By setting the threaded rod 13, the position between the inlet 10 and the gas collecting pipe 15 can be easily adjusted, thereby facilitating the extension of the gas collecting hood body 23 to connect with the exhaust gas outlet, thus improving the exhaust gas collection effect.

[0031] The connecting block 14 has a fixed connection to a gas collecting pipe 15 on one side, a transmission gear 17 rotatably connected to one side of the gas collecting pipe 15, a driven gear 18 meshing with one side of the transmission gear 17, a ball bearing 19 rotatably connected to one side of the driven gear 18, a dustproof ring 20 fixedly connected to the inner side of the driven gear 18, a connecting frame 21 fixedly connected to one side of the driven gear 18, a scraper 22 fixedly connected to one side of the connecting frame 21, and a gas collecting hood body 23 slidably connected to one side of the scraper 22. The driven gear 18 is rotatably connected to the inner wall of one end of the gas collecting pipe 15 via the ball bearing 19, and the dustproof ring 20 slides against the side of the gas collecting pipe 15 near the inner wall of the driven gear 18. The transmission gear 17 is fixedly connected to the output shaft of the motor 16; the end of the air collecting pipe 15 away from the air inlet 10 is fixedly connected to the end of the air collecting hood body 23; the connecting frame 21 is configured in two sets, with the two sets of connecting frames 21 being parallel to the inner walls of the air collecting pipe 15 and the air collecting hood body 23, respectively; the scraper 22 is slidably connected to the inner walls of the air collecting pipe 15 and the air collecting hood body 23, respectively; the transmission gear 17 drives the driven gear 18 to rotate, thereby providing power to the connecting frame 21 and the scraper 22, which facilitates the cleaning of the inner walls of the air collecting pipe 15 and the air collecting hood body 23 and reduces the impact of dust on the use of the air collecting pipe 15 and the air collecting hood body 23.

[0032] Working principle: When using the exhaust gas collection hood for exhaust gas treatment, firstly, the lifting plate 5 is pushed to slide upward in the middle of the support base 1 by controlling the cylinder 4, so that the lifting plate 5 slides on the outside of the support column 2 through the clearance groove 6, and the support platform 3 is separated from the bottom surface of the exhaust gas treatment equipment 8. Then, the exhaust gas treatment equipment 8 is rotated at the upper end of the support frame 7. Then, by controlling the cylinder 4, the support platform 3 is brought into contact with the bottom surface of the exhaust gas treatment equipment 8.

[0033] Secondly, by rotating the threaded rod 13, the threaded rod 13 slides in the sliding groove 11, thereby causing the threaded rod 13 to drive the air collection pipe 15 to slide on one side of the guide rod 24 through the connecting block 14, and the dustproof strip 12 prevents dust in the air inlet 10 from entering.

[0034] Finally, the motor 16 drives the transmission gear 17 to rotate, which in turn drives the driven gear 18 to rotate in the gas collection pipe 15 through the ball bearing 19. At this time, the dustproof ring 20 rotates, and the connecting frame 21 cleans the dust on the inner wall of the gas collection pipe 15 and the gas collection hood body 23 through the scraper 22, and cleans the treated gas through the air outlet 9.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A waste gas collection hood for waste gas treatment, comprising a support base (1); A cylinder (4) is installed in the middle of the support base (1), and an exhaust gas treatment device (8) is provided above the support base (1). A motor (16) is installed on one side of the exhaust gas treatment device (8). Its features are, Also includes: A support column (2) is fixedly connected in the middle inside the support base (1), a support platform (3) is fixedly connected to the top of the support column (2), a lifting plate (5) is slidably connected to the inner side of the support base (1), a clearance groove (6) is opened in the middle of the lifting plate (5), and a support frame (7) is fixedly connected to one side of the top of the lifting plate (5). Among them, an air outlet (9) is fixedly connected to one side of the waste gas treatment equipment (8), and an air inlet (10) is fixedly connected to the other side of the waste gas treatment equipment (8). A sliding groove (11) is opened on one side of the inner wall of the air inlet (10). A dustproof strip (12) is fixedly connected to one side of the sliding groove (11). A threaded rod (13) is rotatably connected to the middle of the sliding groove (11). A connecting block (14) is provided on the outer side of the threaded rod (13). A guide rod (24) is fixedly connected to the other side of the inner wall of the air inlet (10). Among them, a gas collecting pipe (15) is fixedly connected to one side of the connecting block (14), a transmission gear (17) is rotatably connected to one side of the gas collecting pipe (15), a driven gear (18) is meshed to one side of the transmission gear (17), a ball bearing (19) is rotatably connected to one side of the driven gear (18), a dustproof ring (20) is fixedly connected to the inner side of the driven gear (18), a connecting frame (21) is fixedly connected to one side of the driven gear (18), a scraper (22) is fixedly connected to one side of the connecting frame (21), and a gas collecting hood body (23) is slidably connected to one side of the scraper (22).

2. A fume hood for use in fume abatement according to claim 1, wherein: The lifting plate (5) is slidably connected to the outside of the support column (2) through the relief groove (6). The cylinder (4) is symmetrically arranged on both sides of the support column (2). The top of the cylinder (4) is fixedly connected to the bottom surface of the lifting plate (5).

3. A waste gas collecting hood for waste gas treatment according to claim 1, characterized in that: The support frame (7) is symmetrically arranged on both sides of the support column (2). The waste gas treatment equipment (8) is rotatably connected to the middle of the upper end of the two sets of support frames (7). The top surface of the support platform (3) overlaps with one side of the waste gas treatment equipment (8).

4. A waste gas collecting hood for waste gas treatment according to claim 1, characterized in that: The sliding groove (11) and the dustproof strip (12) are symmetrically arranged inside the air inlet (10), and the guide rod (24) is fixedly connected to the sliding groove (11) on the side away from the threaded rod (13).

5. A waste gas collecting hood for use in waste gas treatment according to claim 1, characterized in that: The connecting blocks (14) are symmetrically fixedly connected to one side of the gas collecting pipe (15). One set of the connecting blocks (14) is threadedly connected to the threaded rod (13), and the other set of the connecting blocks (14) is slidably connected to the guide rod (24).

6. A fume hood for use in exhaust gas abatement according to claim 1, characterized in that: The driven gear (18) is rotatably connected to the inner wall of one end of the air collecting pipe (15) via a ball (19), the dustproof ring (20) is slidably connected to the side of the air collecting pipe (15) near the inner wall of the driven gear (18), and one end of the transmission gear (17) is fixedly connected to the output shaft of the motor (16).

7. A waste gas collecting hood for use in waste gas treatment according to claim 1, characterized in that: The end of the gas collecting pipe (15) away from the air inlet (10) is fixedly connected to one end of the gas collecting hood body (23). The connecting frame (21) is set in two sets, and the two sets of connecting frames (21) are parallel to the inner walls of the gas collecting pipe (15) and the gas collecting hood body (23) respectively. The scraper (22) is slidably connected to the inner walls of the gas collecting pipe (15) and the gas collecting hood body (23) respectively.

Citation Information

Patent Citations

  • Waste gas collecting hood for waste gas treatment

    CN220715211U