Waste gas collecting cover

Abstract

The utility model provides a waste gas collecting cover which comprises a cover body, a mounting frame is arranged in a mounting opening formed in the upper end of the cover body, a mounting plate is arranged in the mounting frame in a sliding mode, an exhaust pipe is arranged in a mounting hole formed in the mounting plate, and a fan is arranged in the cover body. Quick assembly and disassembly mechanisms for quickly assembling and disassembling the cover body are arranged on the left side and the right side of the mounting frame, and a primary filtering assembly is arranged in the cover body. The waste gas collecting cover disclosed by the utility model can be quickly disassembled, is convenient to clean and inspect regularly, ensures normal operation of equipment, prolongs the service life, and can quickly adjust the position of the collecting cover or replace cover bodies with different specifications according to actual production conditions, so that the waste gas collecting efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment, and particularly relates to a waste gas collection hood. Background Art

[0002] Waste gas treatment refers to the process of purifying and disposing of waste gas generated in industrial production, chemical reactions, and other activities. The purpose is to reduce the adverse effects of harmful substances in the waste gas on the environment and human health, and only after meeting the national specified discharge standards can it be discharged into the atmosphere. There are various methods for waste gas treatment, which can include physical methods (such as adsorption, filtration), chemical methods (such as combustion, catalytic conversion), biological methods (such as microbial degradation), and other technical means. The waste gas collection hood is an important part of the waste gas treatment system. It is a device used to capture, collect, and direct waste gas into the treatment equipment. The waste gas collection hood is usually installed near the source of waste gas generation, such as above, on the side, or below the production equipment, to prevent harmful gases from escaping into the production workshop and the surrounding environment to the greatest extent. The existing waste gas collection hood has a cover body and an exhaust pipe that cannot be quickly disassembled, making maintenance more difficult.

[0003] For example, the utility model with the publication number CN216420580U discloses a waste gas collection hood. The auxiliary cover body covers the outside of the auxiliary fan, and a branch pipe is connected to the outside of the auxiliary cover body. The branch pipe is communicated with the main pipe. In the patent solution, it realizes the collection of waste gas through the cooperation of the main cover body and the auxiliary cover body with the branch pipe and the main pipe. However, the branch pipe and the main pipe cannot be quickly disassembled from the auxiliary cover body. When cleaning, overhauling, or replacing components are needed, the inability to quickly disassemble will result in longer maintenance time, increased downtime and maintenance costs, and it is not convenient to quickly replace the cover body with a suitable size according to the usage situation. Content of the Utility Model

[0004] In view of this, in view of the deficiencies of the prior art, the utility model provides a waste gas collection hood. The cover body can be quickly disassembled to facilitate regular cleaning and inspection, ensure the normal operation of the equipment, extend the service life, and can also quickly adjust the position of the collection hood or replace the cover body with different specifications according to the actual production situation, improving the waste gas collection efficiency.

[0005] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: An exhaust gas collection hood, comprising a hood body. An installation frame is arranged in the installation opening provided at the upper end of the hood body. An installation plate is slidably arranged inside the installation frame. An exhaust pipe is arranged in the installation hole opened inside the installation plate. An exhaust fan is arranged inside the hood body. Quick assembly and disassembly mechanisms for quickly assembling and disassembling the hood body are arranged on the left and right sides of the installation frame. A primary filtration assembly is arranged inside the hood body. The quick assembly and disassembly mechanism includes frame plates arranged on the left and right sides of the installation frame. Slide columns are slidably connected inside both frame plates. Locking blocks are welded and fixed on the relative inner ends of the two slide columns. Locking grooves are respectively opened on the left and right sides of the installation plate. The two locking blocks pass through the through grooves opened on the left and right sides of the installation frame and are respectively inserted into the adjacent locking grooves. Rotating frames are respectively arranged at the opposite ends of the two slide columns. Connecting frames are rotatably connected inside both rotating frames. A telescopic column is arranged on the front side of the installation frame. A rotating seat is arranged on the telescopic end of the telescopic column. The front sides of the two connecting frames are respectively rotatably connected inside the rotating seat. An elastic driving assembly is arranged between the locking block and the frame plate. An auxiliary pressing assembly is arranged at the front end of the rotating seat.

[0006] As a further improvement of the present utility model, the auxiliary pressing assembly includes a pressing plate arranged on the front side of the rotating seat. A plurality of anti-slip protrusions are evenly distributed on the front side of the pressing plate.

[0007] As a further improvement of the present utility model, a control panel is arranged on the front side of the hood body. The exhaust fan is electrically connected to the control panel.

[0008] As a further improvement of the present utility model, the elastic driving assembly of the primary filtration assembly includes springs respectively arranged between the locking block and the frame plate. The two springs are respectively sleeved on the outer arc surfaces of the corresponding slide columns.

[0009] As a further improvement of the present utility model, an installation frame is welded and fixed at the rear end of the installation plate. An installation hole is opened inside the installation frame.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] Firstly, by installing the exhaust gas collection hood at a suitable position, then connecting the exhaust pipe to the intake pipe of an external exhaust gas treatment mechanism. Subsequently, by controlling the operation of the exhaust fan to start, the impeller rotates to continuously suck the exhaust gas into the interior of the hood body, and the dust in the exhaust gas is adsorbed by the activated carbon filter screen. The pre-filtered exhaust gas enters the external exhaust gas treatment mechanism through the exhaust pipe for subsequent treatment, quickly collecting the exhaust gas.

[0012] Second, by pressing the pressing plate, the rotating seat moves backward, the telescopic end of the telescopic column contracts, causing the connecting frames on both sides to rotate and expand. As a result, the sliding columns on the rotating frame move away from each other, driving the locking blocks on the sliding columns to leave the installation slots opened on the mounting plate. Then, the cover body can be disassembled for cleaning and the exhaust fan can be maintained. After the cleaning and maintenance are completed, press the pressing plate to make the locking blocks on both sides move away from each other. At this time, the spring is in a compressed state. Then, by sliding the mounting frame onto the outer surface of the mounting plate and releasing the pressing plate, the spring quickly rebounds, driving the locking blocks on both sides to insert into the interior of the locking slots to achieve the installation of the cover body. During the process of pressing the pressing plate, the anti-slip protrusions can prevent the operator from slipping, enabling quick disassembly for regular cleaning and inspection, ensuring the normal operation of the equipment, extending its service life, and allowing for quick adjustment of the position of the collection cover or replacement of the cover body with different specifications according to the actual production situation, thereby improving the waste gas collection efficiency.

[0013] Third, by pulling up and rotating the elastic piece to make it leave the surface of the activated carbon filter net, the old activated carbon filter net can be taken out through the handle. Then, insert the new activated carbon filter net into the interior of the cover body through the handle. Subsequently, pull up and rotate the elastic piece to make it close to the surface of the activated carbon filter net to achieve the positioning of the activated carbon filter net, enabling quick replacement of the activated carbon filter net.

[0014] Fourth, the exhaust gas collection cover can be quickly installed through the installation holes on the mounting frame, facilitating installation by the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further elaborates on the present utility model in detail in conjunction with the drawings and specific embodiments.

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is an enlarged schematic structural diagram of part A of the present utility model;

[0018] Figure 3 is a schematic top cross-sectional view of the present utility model;

[0019] Figure 4 is a schematic rear cross-sectional view of the present utility model.

[0020] In the figure: 101, cover body; 102, exhaust pipe; 103, mounting frame; 104, mounting plate; 105, mounting frame; 106, exhaust fan; 201, pressing plate; 202, rotating seat; 203, connecting frame; 204, rotating frame; 205, frame plate; 206, sliding column; 207, spring; 208, locking block; 209, telescopic column; 301, activated carbon filter net; 302, elastic piece; 401, control panel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To better understand the present utility model, the content of the present utility model will be further clearly elaborated below in conjunction with embodiments. However, the protected content of the present utility model is not limited to the following embodiments. In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details.

[0022] As Figure 1 、 2 、3, and 4 show, an exhaust gas collection hood includes a hood body 101. An installation frame 105 is arranged in the installation opening provided at the upper end of the hood body 101. An installation plate 104 is slidably arranged inside the installation frame 105. An exhaust pipe 102 is arranged in the installation hole provided inside the installation plate 104. An exhaust fan 106 is arranged inside the hood body 101. Quick installation and disassembly mechanisms for quickly installing and disassembling the hood body 101 are arranged on the left and right sides of the installation frame 105. An initial filtration component is arranged inside the hood body 101. The initial filtration component includes an activated carbon filter screen 301 slidably arranged at the lower end inside the hood body 101, and the activated carbon filter screen 301 is located below the exhaust fan 106. A handle is arranged on the right side of the activated carbon filter screen 301. Two elastic pieces 302 are rotatably arranged at the lower right end of the hood body 101, and the two elastic pieces 302 are cooperatively installed with an activated carbon filter screen 301.

[0023] As Figure 1 、 2 、3, and 4 show, the quick installation and disassembly mechanism includes frame plates 205 arranged on the left and right sides of the installation frame 105. Slide columns 206 are slidably connected inside both of the two frame plates 205. Locking blocks 208 are welded and fixed on the relative inner ends of the two slide columns 206. Locking grooves are respectively opened on the left and right sides of the installation plate 104. The two locking blocks 208 pass through the through grooves opened on the left and right sides of the installation frame 105 and are respectively inserted into the adjacent locking grooves. Rotating frames 204 are respectively arranged on the opposite ends of the two slide columns 206. Connecting frames 203 are rotatably connected inside both of the two rotating frames 204. A telescopic column 209 is arranged on the front side of the installation frame 105. A rotating seat 202 is arranged on the telescopic end of the telescopic column 209. The front sides of the two connecting frames 203 are respectively rotatably connected to the inside of the rotating seat 202. An elastic driving component is arranged between the locking block 208 and the frame plate 205. An auxiliary pressing component is arranged at the front end of the rotating seat 202. The elastic driving component includes springs 207 respectively arranged between the locking block 208 and the frame plate 205, and the two springs 207 are respectively sleeved on the outer arc surfaces of the corresponding slide columns 206. The auxiliary pressing component includes a pressing plate 201 arranged on the front side of the rotating seat 202, and a plurality of anti-slip protrusions are evenly distributed on the front side of the pressing plate 201.

[0024] As Figure 1As shown in the figure, a control panel 401 is provided on the front side of the cover body 101, and the exhaust fan 106 is electrically connected to the control panel 401.

[0025] By installing the exhaust gas collection cover in a suitable position, then connecting the exhaust pipe 102 to the intake pipe of an external exhaust gas treatment mechanism, and then controlling the exhaust fan 106 to operate through the control panel 401, the impeller rotates to continuously suck the exhaust gas into the interior of the cover body 101, and the dust in the exhaust gas is adsorbed by the activated carbon filter screen 301. The preliminarily filtered exhaust gas enters the external exhaust gas treatment mechanism through the exhaust pipe 102 for subsequent treatment.

[0026] When it is necessary to clean and maintain the interior of the cover body 101 or replace the cover body 101 with a suitable specification, by pressing the pressing plate 201, the rotating seat 202 moves backward, and the telescopic end of the telescopic column 209 contracts, causing the connecting frames 203 on both sides to rotate and expand. As a result, the sliding columns 206 on the rotating frame 204 move away from each other, driving the locking blocks 208 on the sliding columns 206 to leave the installation slots opened on the mounting plate 104, and then the cover body 101 is disassembled for cleaning and the exhaust fan 106 is maintained. After the cleaning and maintenance are completed, pressing the pressing plate 201 causes the locking blocks 208 on both sides to move away from each other. At this time, the spring 207 is in a compressed state. Then, by sliding the mounting frame 105 onto the outer surface of the mounting plate 104 and releasing the pressing plate 201, the spring 207 quickly rebounds, driving the locking blocks 208 on both sides to insert into the interior of the locking groove to achieve the installation of the cover body 101. During the process of pressing the pressing plate 201, the anti-slip protrusions can prevent the personnel from slipping.

[0027] By pulling up and rotating the elastic piece 302 to make it leave the surface of the activated carbon filter screen 301, the old activated carbon filter screen 301 can be taken out through the handle. Then, the new activated carbon filter screen 301 is inserted into the interior of the cover body 101 through the handle. Subsequently, pulling up and rotating the elastic piece 302 to make it close to the surface of the activated carbon filter screen 301 to achieve the limit of the activated carbon filter screen 301, and completing the replacement of the activated carbon filter screen 301.

[0028] According to another embodiment of the present invention, as Figure 1 shown, an installation frame 103 is welded and fixed to the rear end of the mounting plate 104. An installation hole is provided inside the installation frame 103, and the exhaust gas collection cover can be quickly installed through the installation hole on the installation frame 103.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. An exhaust gas collection hood, comprising a hood body (101), characterized in that: An installation frame (105) is arranged in the installation opening formed at the upper end of the cover body (101). An installation plate (104) is slidably arranged inside the installation frame (105). An air extraction pipe (102) is arranged in the installation hole formed inside the installation plate (104). An air extraction fan (106) is arranged inside the cover body (101). Quick installation and disassembly mechanisms for quickly installing and disassembling the cover body (101) are arranged on the left and right sides of the installation frame (105). A primary filtration component is arranged inside the cover body (101).

2. The exhaust gas collection hood according to claim 1, characterized in that: The quick installation and disassembly mechanism includes frame plates (205) arranged on the left and right sides of the installation frame (105). Sliding columns (206) are slidably connected inside both frame plates (205). Locking blocks (208) are welded and fixed on the relative inner ends of the two sliding columns (206). Locking grooves are respectively formed on the left and right sides of the installation plate (104). The two locking blocks (208) pass through the through grooves formed on the left and right sides of the installation frame (105) and are respectively inserted into the adjacent locking grooves. Rotating frames (204) are respectively arranged at the opposite ends of the two sliding columns (206). Connecting frames (203) are rotatably connected inside both rotating frames (204). A telescopic column (209) is arranged on the front side of the installation frame (105). A rotating seat (202) is arranged at the telescopic end of the telescopic column (209). The front sides of the two connecting frames (203) are respectively rotatably connected inside the rotating seat (202). An elastic driving component is arranged between the locking block (208) and the frame plate (205). An auxiliary pressing component is arranged at the front end of the rotating seat (202).

3. The exhaust gas collection hood according to claim 2, characterized in that: The elastic driving component of the primary filtration component includes springs (207) respectively arranged between the locking block (208) and the frame plate (205). The two springs (207) are respectively sleeved on the outer arc surfaces of the corresponding sliding columns (206).

4. The exhaust gas collection hood according to claim 2, characterized in that: The auxiliary pressing component includes a pressing plate (201) arranged on the front side of the rotating seat (202). A plurality of anti-slip protrusions are evenly distributed on the front side of the pressing plate (201).

5. The exhaust gas collection hood according to claim 1, wherein: The primary filtration component includes an activated carbon filter net (301) slidably arranged at the lower end inside the cover body (101), and the activated carbon filter net (301) is located below the air extraction fan (106). A handle is arranged on the right side of the activated carbon filter net (301). Two elastic pieces (302) are rotatably arranged at the lower right end of the cover body (101). The two elastic pieces (302) are cooperatively installed with an activated carbon filter net (301).

6. The exhaust gas collection hood according to claim 1, wherein: An installation bracket (103) is welded and fixed at the rear end of the installation plate (104). An installation hole is formed inside the installation bracket (103).

7. The exhaust gas collection hood according to claim 1, characterized in that: A control panel (401) is arranged on the front side of the cover body (101). The air extraction fan (106) is electrically connected to the control panel (401).

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