Smoke prevention and exhaust air pipe used in vertical piping shaft

Abstract

The utility model relates to the technical field of ventilation pipelines, and discloses a smoke prevention and exhaust air pipe used in a vertical piping shaft, which comprises a smoke prevention and exhaust air pipe body and mounting boxes fixed on the front side and the rear side of the inner wall of the smoke prevention and exhaust air pipe body, and further comprises driving motors fixed at the bottoms of the inner walls of the mounting boxes, a threaded rod is rotationally connected to the upper portion of the inner wall of the mounting box, the bottom end of the threaded rod is fixedly connected with an output shaft of the driving motor, and a lifting block is slidably connected to the upper portion of the inner wall of the mounting box. The air pipe has a cleaning function, the inner wall of the pipeline can be automatically brushed at regular intervals through the built-in automatic cleaning system, the cleaning efficiency is greatly improved, the system shutdown time caused by manual cleaning is shortened through automatic cleaning, continuous and effective operation of a smoke prevention and exhaust system is guaranteed, and the service life of the air pipe is prolonged. Oil dirt and impurities on the inner wall of the pipeline are regularly cleaned, the pipeline can be kept unobstructed, and the smoke exhaust efficiency of the smoke prevention and exhaust system is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation ducts, in particular to a smoke-proof and smoke-exhaust duct used in a vertical pipe well. Background Art

[0002] At present, the smoke-proof and exhaust ducts used in vertical pipe shafts play a vital role in buildings. The vertical ducts use the wind pressure difference to make the air flow along the pipes, so that the indoor air is updated in time to achieve the effect of ventilation, which helps to maintain the freshness of the indoor air and reduce indoor air pollution and high humidity caused by poor air circulation. The smoke exhaust shaft is a ventilation equipment inside the building. The smoke-proof and exhaust ducts inside it can effectively discharge the smoke and exhaust gas inside the building in emergency situations such as fire to ensure the safety of the building. If the smoke and exhaust gas are not discharged in time, it will harm the human body and may cause air pollution, fire and other safety problems. The smoke exhaust duct can remove the heat generated by combustion while removing the smoke, thereby reducing the temperature of the fire scene and creating favorable conditions for personnel evacuation and fire fighting and rescue.

[0003] At present, the inner wall surface of the smoke and exhaust duct needs to be cleaned regularly. Cleaning grease and dust can prevent combustion accidents caused by excessive accumulation of grease and reduce the risk of fire. The accumulation of grease and dust will block the pipe and affect the smoke exhaust effect. Regular cleaning can keep the pipe unobstructed, ensure the normal operation of the smoke exhaust system, and improve the smoke exhaust efficiency. The existing cleaning method is mostly for the staff to spray cleaning agent into the pipe to soften the grease, and then the staff enter the smoke exhaust pipe and use cleaning tools to manually clean the inner wall of the pipe. When cleaning smaller smoke exhaust pipes, the staff also needs to dismantle the entire pipe for cleaning, which makes the current smoke exhaust pipe cleaning process more troublesome and the manual cleaning efficiency of the staff is low. Utility Model Content

[0004] The purpose of the present invention is to provide a smoke-proof and smoke-exhaust air duct for use in a vertical pipe shaft, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a smoke and exhaust duct for use in a vertical pipe shaft, comprising a smoke and exhaust duct body and mounting boxes fixed to the front and rear sides of the inner wall of the smoke and exhaust duct body, and further comprising:

[0006] A driving motor is fixed to the bottom of the inner wall of the installation box, a threaded rod is rotatably connected to the upper part of the inner wall of the installation box, and the bottom end of the threaded rod is fixedly connected to the output shaft of the driving motor, a lifting block is slidably connected to the upper part of the inner wall of the installation box, and through grooves are provided on the surfaces of the opposite sides of the installation box, and a connecting block is slidably connected to the upper part of the inner wall of the through groove;

[0007] A lifting frame is slidably connected to the upper inner wall of the smoke and exhaust duct body, and a first connecting groove is provided on both the front and rear sides of the lifting frame. The mounting box passes through the first connecting groove and is slidably connected to the inner wall of the first connecting groove. The four sides of the surface of the lifting frame are provided with mounting grooves. A brush roller is rotatably connected to the edge of the inner wall of the mounting groove, and the brush roller contacts the surface of the inner wall of the smoke and exhaust duct body. A liquid pipe is provided inside the mounting groove, and a plurality of spray holes are provided on the surface of the liquid pipe. The top of the liquid pipe is connected to a liquid injection pipe, and the liquid injection pipe passes through the lifting frame and extends to the top of the lifting frame. Scrapers are fixed on the four sides of the bottom of the lifting frame.

[0008] A fixing frame is slidably connected to the lower inner wall of the smoke-proof and smoke-exhaust air duct body, and second connecting grooves are provided on both the front and rear sides of the fixing frame, and a waste groove is provided on the top of the fixing frame.

[0009] Preferably, the threaded rod passes through the lifting block and is threadedly connected to the lifting block, one side of the connecting block is fixedly connected to the surface of the lifting block, and the side of the connecting block away from the lifting block is fixedly connected to the surface of the inner wall of the first connecting groove.

[0010] Preferably, a limiting groove is provided on one side of the inner wall of the installation box, a limiting block is fixed on the side of the lifting block away from the connecting block, and the limiting block is located inside the limiting groove and is slidably connected to the inner wall of the limiting groove.

[0011] Preferably, the surface of one side of the scraper is inclined, and the scraper is in contact with the inner wall of the smoke and smoke exhaust duct body and is slidably connected to the inner wall of the smoke and smoke exhaust duct body.

[0012] Preferably, the inner wall of the second connecting groove is slidably connected to the surface of the installation box, and magnetic blocks are embedded on both the left and right sides of the inner wall of the second connecting groove, and the magnetic blocks are used in conjunction with the installation box.

[0013] Preferably, accordion covers are fixed to the upper and lower sides of the inner wall of the through groove, and one side of the accordion cover is fixedly connected to the upper and lower surfaces of the connecting block.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The utility model has a cleaning function. The air duct can automatically and regularly scrub the inner wall of the duct through the built-in automatic cleaning system, which greatly improves the cleaning efficiency. Automatic cleaning reduces the system downtime caused by manual cleaning, ensures the continuous and effective operation of the smoke and exhaust system, and regularly cleans the grease and impurities on the inner wall of the duct to keep the duct unobstructed, thereby improving the exhaust efficiency of the smoke and exhaust system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 It is a cross-sectional view of the installation box in the present utility model;

[0019] Figure 4 For this utility model Figure 3 A partial enlarged view of point A in the middle;

[0020] Figure 5 It is a three-dimensional schematic diagram of the lifting frame in the utility model;

[0021] Figure 6 It is a cross-sectional view of the lifting frame in the utility model;

[0022] Figure 7 For this utility model Figure 6 A partial enlarged view of point B in the middle;

[0023] Figure 8 It is a three-dimensional schematic diagram of the fixing frame in the present utility model.

[0024] In the figure: 1. Smoke and exhaust duct body; 2. Mounting box; 3. Drive motor; 4. Threaded rod; 5. Lifting block; 6. Through slot; 7. Connecting block; 8. Lifting frame; 9. First connecting slot; 10. Mounting slot; 11. Brush roller; 12. Liquid pipe; 13. Spray hole; 14. Liquid injection pipe; 15. Scraper; 16. Fixing frame; 17. Waste trough; 18. Second connecting slot; 19. Magnetic block; 20. Limiting slot; 21. Limiting block; 22. Accordion cover. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-8As shown, a smoke and exhaust duct for a vertical pipe shaft includes a smoke and exhaust duct body 1, the front and rear sides of the inner wall of the smoke and exhaust duct body 1 are bolted with mounting boxes 2, the bottom of the inner wall of the mounting box 2 is fixed with a driving motor 3, the upper part of the inner wall of the mounting box 2 is rotatably connected with a threaded rod 4, and the bottom end of the threaded rod 4 is fixedly connected to the output shaft of the driving motor 3, the upper part of the inner wall of the mounting box 2 is slidably connected with a lifting block 5, the surface of the opposite side of the mounting box 2 is provided with a through groove 6, and the upper part of the inner wall of the through groove 6 is slidably connected with a connecting block 7, the upper part of the inner wall of the smoke and exhaust duct body 1 is slidably connected with a lifting frame 8, and the front and rear sides of the lifting frame 8 are provided with a first connecting groove 9, the mounting box 2 passes through the first connecting groove 9 and is connected to the first connecting groove The inner wall of the connecting groove 9 is slidably connected, and mounting grooves 10 are provided on the four sides of the surface of the lifting frame 8. A brush roller 11 is rotatably connected to the edge of the inner wall of the mounting groove 10, and the brush roller 11 contacts the surface of the inner wall of the smoke and exhaust duct body 1. A liquid pipe 12 is provided inside the mounting groove 10, and a plurality of spray holes 13 are provided on the surface of the liquid pipe 12. The top of the liquid pipe 12 is connected to a liquid injection pipe 14, and the liquid injection pipe 14 passes through the lifting frame 8 and extends to the top of the lifting frame 8. Scrapers 15 are fixed on the four sides of the bottom of the lifting frame 8. A fixing frame 16 is slidably connected to the bottom of the inner wall of the smoke and exhaust duct body 1, and a second connecting groove 18 is provided on the front and rear sides of the fixing frame 16. A waste trough 17 is provided on the top of the fixing frame 16.

[0027] The threaded rod 4 passes through the lifting block 5 and is threadedly connected to the lifting block 5. One side of the connecting block 7 is fixedly connected to the surface of the lifting block 5. The side of the connecting block 7 away from the lifting block 5 is fixedly connected to the surface of the inner wall of the first connecting groove 9. A limiting groove 20 is provided on one side of the inner wall of the installation box 2. A limiting block 21 is fixed on the side of the lifting block 5 away from the connecting block 7, and the limiting block 21 is located inside the limiting groove 20 and is slidably connected to the inner wall of the limiting groove 20. When the threaded rod 4 rotates, the lifting block 5 on the surface of the threaded rod 4 will move, and the limiting block 21 slides inside the limiting groove 20 to limit the lifting block 5, so that the lifting block 5 drives the connecting block 7 to move up and down, and the height of the lifting frame 8 changes, so as to carry out cleaning work in the smoke and exhaust air duct.

[0028] The surface of one side of the scraper 15 is inclined, and the scraper 15 is in contact with the inner wall of the smoke and exhaust duct body 1 and is slidably connected to the inner wall of the smoke and exhaust duct body 1. When the lifting frame 8 moves up and down, the scraper 15 can scrape off the grease attached to the inner wall surface of the smoke and exhaust duct body 1. Through the cooperation between the scraper 15 and the brush roller 11, the inner wall surface of the smoke and exhaust duct body 1 is effectively cleaned.

[0029] The inner wall of the second connecting groove 18 is slidingly connected to the surface of the installation box 2, and magnetic blocks 19 are embedded on the left and right sides of the inner wall of the second connecting groove 18, and the magnetic blocks 19 are used in conjunction with the installation box 2. When the staff cleans the smoke and exhaust duct, the staff puts the fixing frame 16 into the smoke and exhaust duct body 1, and the magnetic block 19 will be adsorbed on the installation box 2, and then the fixing frame 16 will be fixed inside the smoke and exhaust duct body 1. After the waste trough 17 collects the waste, the staff can remove the fixing frame 16 by pulling down the fixing frame 16, which is convenient for disassembly and assembly of the fixing frame 16.

[0030] An accordion cover 22 is fixed on the upper and lower sides of the inner wall of the through groove 6, and one side of the accordion cover 22 is fixedly connected to the upper and lower surfaces of the connecting block 7. When the smoke and exhaust duct is working normally, the accordion cover 22 can seal the through groove 6, thereby preventing a large amount of oil and dirt from accumulating inside the installation box 2, causing trouble for the staff in cleaning work.

[0031] Working principle: When a large amount of grease appears on the inner wall surface of the smoke and exhaust duct and needs to be cleaned, the staff will first take out the fixing frame 16 and install it under the inner wall of the smoke and exhaust duct body 1. After the installation is completed, the staff can inject the cleaning liquid into the injection pipe 14, and then make the liquid pipe 12 spray the cleaning liquid through the spray hole 13 and spray it on the surface of the brush roller 11. At this time, the staff turns on the driving motors 3 on both sides, and the rotating threaded rod 4 drives the lifting block 5 to descend, so that the lifting frame 8 moves down as a whole. During the descent of the lifting frame 8, the scraper 15 will remove the grease on the inner wall surface of the smoke and exhaust duct body 1 The brush roller 11 will be scraped and attached to the inner wall of the smoke and exhaust duct body 1 and rotate, and the surface of the smoke and exhaust duct body 1 will be brushed by the cleaning liquid on the surface of the brush roller 11. The waste and waste liquid cleaned by the scraper 15 and the brush roller 11 will flow into the waste trough 17 below. When the lifting frame 8 approaches the fixed frame 16, the staff controls the driving motor 3 to move the lifting frame 8 back to its original position, thereby completing the cleaning of the inner wall of the smoke and exhaust duct body 1. Afterwards, the staff removes the fixed frame 16 to process the waste and waste liquid inside the waste trough 17, thereby completing the cleaning operation of the smoke and exhaust duct.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smoke and smoke exhaust duct for use in a vertical pipe shaft, comprising a smoke and smoke exhaust duct body (1) and a mounting box (2) fixed to the front and rear sides of the inner wall of the smoke and smoke exhaust duct body (1), characterized in that: Also includes: A driving motor (3) is fixed to the bottom of the inner wall of the installation box (2); a threaded rod (4) is rotatably connected to the upper portion of the inner wall of the installation box (2); and the bottom end of the threaded rod (4) is fixedly connected to the output shaft of the driving motor (3); a lifting block (5) is slidably connected to the upper portion of the inner wall of the installation box (2); a through groove (6) is provided on the surface of the opposite side of the installation box (2), and a connecting block (7) is slidably connected to the upper portion of the inner wall of the through groove (6); A lifting frame (8) is slidably connected above the inner wall of the smoke and exhaust duct body (1), and a first connecting groove (9) is provided on both the front and rear sides of the lifting frame (8), the installation box (2) passes through the first connecting groove (9) and is slidably connected to the inner wall of the first connecting groove (9), and the four sides of the surface of the lifting frame (8) are provided with installation grooves (10), the edge of the inner wall of the installation groove (10) is rotatably connected with a brush roller (11), and the brush roller (11) contacts the surface of the inner wall of the smoke and exhaust duct body (1), the interior of the installation groove (10) is provided with a liquid pipe (12), and the surface of the liquid pipe (12) is provided with a plurality of spray holes (13), the top of the liquid pipe (12) is connected with a liquid injection pipe (14), and the liquid injection pipe (14) passes through the lifting frame (8) and extends to the top of the lifting frame (8), and scrapers (15) are fixed on the four sides of the bottom of the lifting frame (8); A fixing frame (16) is slidably connected to the lower inner wall of the smoke and exhaust duct body (1), and second connecting grooves (18) are provided on both the front and rear sides of the fixing frame (16), and a waste groove (17) is provided on the top of the fixing frame (16).

2. The smoke-proof and exhaust duct for use in a vertical pipe shaft according to claim 1, characterized in that: The threaded rod (4) passes through the lifting block (5) and is threadedly connected to the lifting block (5); one side of the connecting block (7) is fixedly connected to the surface of the lifting block (5); and the side of the connecting block (7) away from the lifting block (5) is fixedly connected to the surface of the inner wall of the first connecting groove (9).

3. The smoke-proof and exhaust duct for use in a vertical pipe shaft according to claim 1, characterized in that: A limiting groove (20) is provided on one side of the inner wall of the installation box (2), and a limiting block (21) is fixed on the side of the lifting block (5) away from the connecting block (7), and the limiting block (21) is located inside the limiting groove (20) and is slidably connected to the inner wall of the limiting groove (20).

4. The smoke-proof and exhaust duct for use in a vertical pipe shaft according to claim 1, characterized in that: The surface of one side of the scraper (15) is arranged in an inclined manner, and the scraper (15) is in contact with the inner wall of the smoke-proof and smoke-exhaust air duct body (1) and is slidably connected to the inner wall of the smoke-proof and smoke-exhaust air duct body (1).

5. The smoke-proof and exhaust duct for use in a vertical pipe shaft according to claim 1, characterized in that: The inner wall of the second connecting groove (18) is slidably connected to the surface of the installation box (2), and magnetic blocks (19) are embedded on both the left and right sides of the inner wall of the second connecting groove (18), and the magnetic blocks (19) and the installation box (2) are used in conjunction with each other.

6. The smoke-proof and exhaust duct for use in a vertical pipe shaft according to claim 1, characterized in that: An accordion cover (22) is fixed to both upper and lower sides of the inner wall of the through slot (6), and one side of the accordion cover (22) is fixedly connected to the upper and lower surfaces of the connecting block (7).

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