Automatic smoke exhaust device for fire engineering

Abstract

The automatic smoke exhaust device comprises an air pipe, one side of the top face of the air pipe is vertically communicated with a connecting pipe, the front side of the air pipe is horizontally communicated with a plurality of smoke exhaust assemblies distributed at equal intervals, the interior of the air pipe is movably connected with a brush plate, the brush plate is a rectangular plate with bristles on the periphery, and a driving piece is arranged in the air pipe. The driving piece is movably connected with the brush plate, an ash discharging opening is formed in the bottom face of one side of the air pipe, a dust collecting groove is formed below the ash discharging opening and movably connected with the air pipe, and a handle is fixedly connected to the outer portion of the dust collecting groove. The brush plate is movably connected in the air pipe through the driving piece, dust accumulated on the inner wall of the air pipe is cleaned, the brush plate is arranged to be the rectangular plate with the brushes arranged on the periphery, the four walls of the air pipe are cleaned, the guide rod and the sleeve are movably connected to the tail end of the stud, and therefore the brush plate can be used for cleaning dust on the inner wall of the air pipe. And the brush plate is movably connected to the outer part of the stud through the internal thread pipe and the internal thread ring, so that the brush plate is convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of fire engineering devices, in particular to an automatic smoke exhaust device for fire engineering. Background Art

[0002] In residential buildings or commercial buildings, fire protection is a crucial link. According to fire statistics, smoke is the main cause of death in building fires. Especially in large shopping malls or office buildings, due to poor ventilation, the proportion of people who die from smoke inhalation is relatively large, up to 80% at most. Among the people who are burned to death, most are first poisoned and fainted by inhaling smoke and then burned to death. Among the people who die in fires, most die from asphyxiation caused by thick smoke inhalation. According to fire protection regulations, fire smoke exhaust devices should be installed in waiting areas of public transportation such as subways, airports, and railway stations, as well as in large shopping malls, cinemas, and indoor entertainment venues.

[0003] Existing fire smoke exhaust devices all extract the smoke in residential buildings or commercial buildings through air ducts in cooperation with fans and then discharge it outdoors. However, the smoke generated by fires contains a large amount of harmful substances, and the smoke is extremely likely to remain on the inner wall of the air duct. The air duct is usually placed on the ceiling or in a narrow air duct, and it is very troublesome to clean, which requires disassembling the air duct or climbing into the air duct. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to provide an automatic smoke exhaust device for fire engineering.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: an automatic smoke exhaust device for fire engineering, including an air duct, a connecting pipe is vertically and communicatively connected to one side of the top surface of the air duct, a plurality of equally spaced smoke exhaust components are horizontally communicatively connected to the front side of the air duct, a brush plate is movably connected inside the air duct, the brush plate is a rectangular plate with bristles arranged around it, a driving member is arranged inside the air duct, the driving member is movably connected to the brush plate, a dust discharge port is opened on the bottom surface of one side of the air duct, a dust collection tank is arranged below the dust discharge port, the dust collection tank is movably connected to the air duct, and a handle is fixedly connected to the outside of the dust collection tank.

[0006] As a further description of the above technical scheme: the smoke exhaust component includes a plurality of suction pipes horizontally communicatively connected to the front side of the air duct, a shutter is arranged at the outer port of the suction pipe, and a fan is arranged inside the suction pipe.

[0007] As a further description of the above technical solution: The driving member includes a driving motor horizontally fixed outside the air duct. The output end of the driving motor is drivingly connected to a stud. The end of the stud rotatably penetrates the air duct. The brush plate is movably sleeved on the outer edge of the stud. The end of the stud is movably connected to a guide rod. The end of the guide rod is telescopically connected to a sleeve. The sleeve is horizontally rotatably connected to the inner wall of the air duct.

[0008] As a further description of the above technical solution: A sleeve hole horizontally penetrates the center of the brush plate. An internally threaded tube axially slides through the sleeve hole. The internally threaded tube is threadedly sleeved on the outer edge of the stud. A retaining ring is fixedly sleeved at the end of the internally threaded tube. External threads are provided on the outside of the internally threaded tube. An internally threaded ring is threadedly sleeved on the outside of the internally threaded tube. The internally threaded ring abuts against the brush plate.

[0009] As a further description of the above technical solution: Two equally spaced guiding grooves are axially formed on the outside of the internally threaded tube. A guiding block is slidably connected in each guiding groove. The guiding block is fixedly connected to the inner wall of the sleeve hole.

[0010] As a further description of the above technical solution: A first limiting ring is fixedly sleeved at the end of the stud. The outer diameter of the first limiting ring is equal to the outer diameter of the internally threaded tube. A second limiting ring is fixedly sleeved at the end of the guide rod. A cross groove is axially formed at the center of the end of the stud. A cross block is axially inserted into the cross groove. The cross block is fixed at the center of the end of the guide rod.

[0011] As a further description of the above technical solution: Two mirror-symmetrical sliding grooves are axially formed on the inner wall of the sleeve. A slider is slidably connected in each sliding groove. The slider is fixedly connected to the guide rod. A spring is fixedly provided between the sleeve and the guide rod.

[0012] The utility model has the following beneficial effects:

[0013] Compared with the prior art, for the automatic smoke exhaust device for fire protection engineering, by using a driving member to movably connect a brush plate inside the air duct, it plays a role in cleaning the dust accumulated on the inner wall of the air duct. And setting the brush plate as a rectangular plate with brushes on all four sides plays a role in cleaning the four walls of the air duct. And movably connecting the guide rod and the sleeve at the end of the stud, and movably connecting the brush plate to the outside of the stud through the internally threaded tube and the internally threaded ring facilitates the replacement of the brush plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional overall structure diagram of an automatic smoke exhaust device for fire protection engineering proposed by the utility model;

[0015] Figure 2The main sectional view of the overall structure of an automatic smoke exhaust device for a fire protection project proposed by the present utility model;

[0016] Figure 3 An automatic smoke exhaust device for a fire protection project proposed by the present utility model Figure 2 The enlarged view of the structure at position A in

[0017] Figure 4 An automatic smoke exhaust device for a fire protection project proposed by the present utility model Figure 2 The enlarged view of the structure at position B in

[0018] Legend description:

[0019] 1. Air duct; 2. Connecting pipe; 3. Dust collection tank; 4. Handle; 5. Suction pipe; 6. Louver; 7. Driving motor; 8. Stud; 9. Brush plate; 10. Sleeve; 11. Guide rod; 12. Ash discharge port; 13. Retaining ring; 14. Internal thread ring; 15. Guide groove; 16. Internal thread pipe; 17. External thread; 18. Sleeve hole; 19. Guide block; 20. Cross groove; 21. Cross block; 22. First limiting ring; 23. Slide block; 24. Slide groove; 25. Spring; 26. Second limiting ring. Specific implementation manners

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Refer to Figures 1 to 4, an automatic smoke exhaust device for fire protection engineering provided by the utility model: It includes an air duct 1. One side of the top surface of the air duct 1 is vertically and communicatively connected to a connecting pipe 2. A plurality of equally spaced smoke exhaust components are horizontally communicatively connected to the front side of the air duct 1. A brush plate 9 is movably connected inside the air duct 1. The brush plate 9 is a rectangular plate with bristles around its perimeter. A driving member is provided inside the air duct 1, and the driving member is movably connected to the brush plate 9. A dust discharge port 12 is opened on the bottom surface of one side of the air duct 1. A dust collection tank 3 is provided below the dust discharge port 12. The dust collection tank 3 is movably connected to the air duct 1. A handle 4 is fixedly connected to the outside of the dust collection tank 3. The smoke exhaust component includes a plurality of suction pipes 5 horizontally communicatively connected to the front side of the air duct 1. A shutter 6 is provided at the outer opening of the suction pipe 5. A fan is provided inside the suction pipe 5; The driving member includes a driving motor 7 horizontally fixed outside the air duct 1. The output end of the driving motor 7 is drivingly connected to a stud 8. The end of the stud 8 rotatably penetrates the air duct 1. The brush plate 9 is movably sleeved on the outer edge of the stud 8. The end of the stud 8 is movably connected to a guide rod 11. The end of the guide rod 11 is telescopically connected to a sleeve 10. The sleeve 10 is horizontally rotatably connected to the inner wall of the air duct 1;

[0022] A sleeve hole 18 horizontally penetrates through the center of the brush plate 9. An internally threaded pipe 16 axially slides through the sleeve hole 18. Two equally spaced guiding grooves 15 are axially opened on the outside of the internally threaded pipe 16. A guiding block 19 is slidably connected in each guiding groove 15. The guiding block 19 is fixedly connected to the inner wall of the sleeve hole 18. The internally threaded pipe 16 is threadedly sleeved on the outer edge of the stud 8. A retaining ring 13 is fixedly sleeved at the end of the internally threaded pipe 16. An external thread 17 is provided on the outside of the internally threaded pipe 16. An internally threaded ring 14 is threadedly sleeved on the outside of the internally threaded pipe 16. The internally threaded ring 14 abuts against the brush plate 9; A first limiting ring 22 is fixedly sleeved at the end of the stud 8. The outer diameter of the first limiting ring 22 is equal to the outer diameter of the internally threaded pipe 16. A second limiting ring 26 is fixedly sleeved at the end of the guide rod 11. A cross slot 20 is axially opened at the center of the end of the stud 8. A cross block 21 is axially inserted into the cross slot 20. The cross block 21 is fixed at the center of the end of the guide rod 11. Two mirror-symmetrical sliding grooves 24 are axially opened on the inner wall of the sleeve 10. A slider 23 is slidably connected in each sliding groove 24. The slider 23 is fixedly connected to the guide rod 11. A spring 25 is fixedly provided between the sleeve 10 and the guide rod 11.

[0023] By using a driving member to movably connect a brush plate 9 inside the air duct 1, it plays a role in cleaning the dust accumulated on the inner wall of the air duct 1. And setting the brush plate 9 as a rectangular plate with bristles around its perimeter plays a role in cleaning the four walls of the air duct 1. And movably connecting the guide rod 11 and the sleeve 10 at the end of the stud 8, and movably connecting the brush plate 9 to the outside of the stud 8 through the internally threaded pipe 16 and the internally threaded ring 14 facilitates the replacement of the brush plate 9.

[0024] Working principle: When in use, the driving motor 7 drives the stud 8 to rotate, and the stud 8 rotates through the guide rod 11 and the sleeve 10, so that the brush plate 9 moves axially, and the brush plate 9 sweeps the dust inside the air duct 1 into the dust collecting tank 3 through the dust discharge port 12. When the brush plate 9 needs to be replaced, the brush plate 9 will move to the dust discharge port 12, and then the dust collecting tank 3 will be removed, and then the internal thread ring 14 will be rotated to separate the internal thread ring 14 from the internal thread tube 16, and then by toggling the second limiting ring 26, the second limiting ring 26 drives the guide rod 11 to move toward the sleeve 10, so that the spring 25 contracts, the stud 8 is separated from the guide rod 11, and then the brush plate 9 is pulled out from the internal thread tube 16, and then Take out the old brush plate 9 from the ash discharge port 12, and then put the new brush plate 9 back from the ash discharge port 12 to the outside of the internal threaded tube 16 outside the stud 8, so that the brush plate 9 abuts against the retaining ring 13, and install the brush plate 9 in the internal threaded tube 16 through the guide block 19 and the guide groove 15, and then install the internal threaded ring 14 back to the outside of the internal threaded tube 16, so that the internal threaded ring 14 abuts against the other side of the brush plate 9, and then press the guide rod 11 back into the sleeve 10, and the spring 25 is compressed so that the cross block 21 is aligned with the cross groove 20 of the stud 8, and then the guide rod 11 is released, and the spring 25 is reset, so that the cross block 21 is inserted into the cross groove 20 of the stud 8, so that the stud 8 and the guide rod 11 are docked.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic smoke exhaust device for fire protection engineering, comprising an air duct (1), wherein one side of the top surface of the air duct (1) is vertically connected to a connecting pipe (2), and the front side of the air duct (1) is horizontally connected to a plurality of equidistantly distributed smoke exhaust components, characterized in that: The air duct (1) is internally movably connected to a brush plate (9), the brush plate (9) being a rectangular plate with bristles arranged around its periphery. A driving member is arranged inside the air duct (1), the driving member being movably connected to the brush plate (9). A dust discharge port (12) is provided on a bottom surface of one side of the air duct (1), a dust collecting trough (3) is provided below the dust discharge port (12), the dust collecting trough (3) being movably connected to the air duct (1), and the dust collecting trough (3) is externally fixedly connected to a handle (4).

2. The automatic smoke exhaust device for fire protection engineering according to claim 1, characterized in that: The smoke exhaust assembly comprises a plurality of dust suction pipes (5) horizontally connected to the front side of the air duct (1), a shutter (6) is provided at the outer opening of the dust suction pipe (5), and a fan is provided inside the dust suction pipe (5).

3. The automatic smoke exhaust device for fire protection engineering according to claim 1, characterized in that: The driving member comprises a driving motor (7) fixed horizontally outside the air duct (1); the output end of the driving motor (7) is connected to a stud (8); the end of the stud (8) is rotatably connected to the air duct (1); the brush plate (9) is movably sleeved on the outer edge of the stud (8); the end of the stud (8) is movably connected to a guide rod (11); the end of the guide rod (11) is telescopically connected to a sleeve (10); and the sleeve (10) is horizontally rotatably connected to the inner wall of the air duct (1).

4. The automatic smoke exhaust device for fire protection engineering according to claim 3 is characterized in that: The center of the brush plate (9) is horizontally penetrated by a sleeve hole (18), and an internally threaded tube (16) is axially slidably inserted into the sleeve hole (18). The internally threaded tube (16) is threadedly sleeved on the outer edge of the stud (8). A sleeve retaining ring (13) is fixed at the end of the internally threaded tube (16). An external thread (17) is arranged on the outside of the internally threaded tube (16). The external thread of the internally threaded tube (16) is sleeved on the internally threaded ring (14), and the internally threaded ring (14) is in contact with the brush plate (9).

5. The automatic smoke exhaust device for fire protection engineering according to claim 4 is characterized in that: Two equally spaced guide grooves (15) are axially provided on the outside of the internally threaded tube (16), and a guide block (19) is slidably connected to each of the guide grooves (15). The guide block (19) is fixedly connected to the inner wall of the sleeve hole (18).

6. The automatic smoke exhaust device for fire protection engineering according to claim 4, characterized in that: The end of the stud (8) is fixedly sleeved with a first limiting ring (22), the outer diameter of the first limiting ring (22) being equal to the outer diameter of the internally threaded tube (16), the end of the guide rod (11) is fixedly sleeved with a second limiting ring (26), a cross groove (20) is axially provided at the center of the end of the stud (8), a cross block (21) is axially inserted into the cross groove (20), and the cross block (21) is fixed at the center of the end of the guide rod (11).

7. The automatic smoke exhaust device for fire protection engineering according to claim 3 is characterized by: The inner wall of the sleeve (10) is axially provided with two mirror-symmetrical sliding grooves (24), each of the sliding grooves (24) is slidably connected to a slider (23), the slider (23) is fixedly connected to the guide rod (11), and a spring (25) is fixed between the sleeve (10) and the guide rod (11).

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