Efficient smoke exhaust valve

Abstract

The utility model relates to the technical field of smoke exhaust devices, in particular to an efficient smoke exhaust valve which comprises a shell, a dustproof baffle is arranged at a port, located on the smoke inlet side, of the shell, and the dustproof baffle is provided with a rolling device. A negative pressure fan is fixed in the shell; a movable plate is arranged at the end opening, located on the smoke outlet side, of the shell, a rotating shaft is fixed to the upper end of the movable plate, and an iron bar is fixed to the lower end of the movable plate; the rotating shaft is fixedly connected with the shell; and an electromagnet is fixed on the shell at the port and is adjacent to the rotating shaft. The dustproof baffle is adopted at the port of the smoke inlet side of the smoke exhaust valve to replace a traditional single baffle, and the problems that the smoke exhaust valve cannot be completely opened and the smoke exhaust effect is poor due to the fact that falling dust and greasy dirt are solidified are solved. By arranging the negative-pressure fan, the problem that smoke cannot be efficiently exhausted due to insufficient suction force depending on air flue suction force is solved. And by arranging an electromagnet and a movable plate, the problem that smoke flows backwards when multiple smoke exhaust valves exhaust smoke at the same time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke exhaust devices, in particular to an efficient smoke exhaust valve. Background Art

[0002] With the increasing complexity of modern building structures and the increasing tortuosity of pipelines in buildings, how to efficiently exhaust smoke has become an important issue, and whether the smoke exhaust valve at the smoke exhaust interface can efficiently exhaust smoke has become an important factor. The smoke exhaust valve is located at the entrance of the smoke exhaust system and needs to be manually or electrically opened during a fire or smoke exhaust to discharge the generated smoke and achieve the effect of smoke exhaust.

[0003] In the existing smoke exhaust valve, there is a partially unobstructed space between the housing port at the smoke inlet end and the baffle of the smoke exhaust valve. If the smoke exhaust valve is not used for a long time, a large amount of dust and oil will accumulate in this space. When the smoke exhaust valve needs to be used, these dust and oil will cause the baffle of the smoke exhaust valve to not fully open, affecting the smoke exhaust efficiency.

[0004] In the existing smoke exhaust valve, after the upper baffle of the valve is opened, the smoke exhaust completely depends on the suction force of the air duct. When the suction force is insufficient, efficient smoke exhaust cannot be achieved.

[0005] In addition, when multiple smoke exhaust valves exhaust smoke simultaneously, after the flue gas passes through the pipeline with a complex route, it is possible that the pressure in the pipeline is greater than the pressure at the smoke inlet, and in this case, some smoke exhaust valves will experience the phenomenon of smoke backflow. Summary of the Utility Model

[0006] The utility model provides an efficient smoke exhaust valve, which solves the problems that the baffle of the existing smoke exhaust valve cannot fully open due to the solidification of dust and oil, thereby affecting the smoke exhaust efficiency; the problem that the smoke exhaust valve cannot efficiently exhaust smoke due to insufficient suction force; and the problem that when multiple smoke exhaust valves exhaust smoke simultaneously, some smoke exhaust valves will experience the phenomenon of smoke backflow.

[0007] To achieve the above object, the utility model adopts the following technical solutions:

[0008] An efficient smoke exhaust valve includes a housing, and a scrollable dust-proof baffle is provided at the port of the housing on the smoke inlet side, and the dust-proof baffle is equipped with a scrolling device.

[0009] A negative pressure fan is fixed inside the housing.

[0010] A plurality of movable plates are provided at the port of the housing on the smoke outlet side. A rotating shaft is fixed to the upper end of the movable plate, and an iron bar is fixed to the lower end of the movable plate; the rotating shaft is fixedly connected to the housing through a fixing groove; a plurality of electromagnets are fixed to the housing at this port, and the electromagnets are adjacent to the rotating shaft. The plurality of movable plates completely cover the port of the housing on the smoke outlet side from top to bottom.

[0011] Further, the rolling device includes Motor A, which is connected with a driving wheel. The driving wheel is connected to the rolling part of the rolling shaft, and the rolling part of the rolling shaft consists of several scroll shafts and a sheath; the start button of Motor A is arranged on the housing; the rolling device further includes guide rails respectively arranged on both sides of the dust-proof baffle, and the dust-proof baffle is movably connected to the guide rails through end clamps; the bottom beam is fixed at the lower end of the smoke inlet side port of the housing, and an electromagnet is arranged on the bottom beam. This rolling device is of an automatic rolling mode.

[0012] Further, the rolling device includes a crank, which is inserted into Rolling Wheel A. Rolling Wheel A is fixedly connected to Gear Disk B. Gear Disk B drives Gear Disk A through a chain. Gear Disk A is fixedly connected to a guiding device. The guiding device is connected to a tail plug, and the tail plug is connected to the rolling part of the rolling shaft. The rolling part of the rolling shaft consists of several scroll shafts and a sheath; the rolling device further includes a bottom beam and guide rails respectively arranged on both sides of the dust-proof baffle, and the dust-proof baffle is movably connected to the guide rails through end clamps; the bottom beam is fixed at the lower end of the smoke inlet side port of the housing, and an electromagnet is arranged on the bottom beam. This rolling device is of a manual rolling mode.

[0013] Further, the negative pressure fan is provided with a protective cover.

[0014] Further, the fan blades of the negative pressure fan are fixed to Motor B by lock nuts, and Motor B is connected to the housing through a fixing bracket.

[0015] Further, a smoke alarm is installed on the housing.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. In the present utility model, the dust-proof baffle is adopted at the port on the smoke inlet side of the smoke exhaust valve to replace the traditional single-piece baffle, solving the problem that the dust and oil stains solidify, resulting in incomplete opening and poor smoke exhaust effect.

[0018] 2. By setting the negative pressure fan in the present utility model, the problem of relying on the suction force of the air duct and insufficient suction force for inefficient smoke exhaust is solved.

[0019] 3. By setting the electromagnet and the movable plate in the present utility model, the problem of smoke backflow when multiple smoke exhaust valves exhaust smoke simultaneously is solved. Description of the Drawings

[0020] Figure 1 is the schematic side cross-sectional structure diagram of the present utility model;

[0021] Figure 2 is the schematic front smoke inlet structure diagram of the present utility model

[0022] Figure 3 is the exploded view of the front smoke inlet rolling device of the present utility model;

[0023] Figure 4 It is a schematic diagram of the middle part structure of the present utility model;

[0024] Figure 5 It is a schematic diagram of the back smoke outlet structure of the present utility model;

[0025] Figure 6 It is an exploded view of the movable plate, electromagnet and fixed slot of the back smoke outlet of the present utility model;

[0026] Reference numerals in the figure: 1. Dust-proof baffle housing; 2. Smoke detector; 3. Smoke detector base; 4. Housing; 5. Dust-proof baffle; 6. Bottom beam; 7. End clamp; 8. Left end cover plate; 9. Right end cover plate; 10. Left guide rail; 11. Right guide rail; 12. Guide rail wool strip; 13. Crown wheel; 14. Motor A; 15. Driving wheel; 16. Reel; 17. Sheath; 18. Tail plug; 19. Front protective cover; 20. Rear protective cover; 21. Fan blade; 22. Front lock nut; 23. Rear lock nut; 24. Motor B; 25. Fixed bracket; 26. Electromagnet; 27. Movable plate; 28. Winding wheel A; 29. Winding wheel B; 30. Start button; 31. Fixed hole A; 32. Fixed nut A; 33. Fixed gasket A; 34. Fixed nut A; 35. Fixed hole B; 36. Fixed nut B; 37. Fixed gasket B; 38. Fixed nut B; 39. Guide device; 40. Gear disc A; 41. Gear disc B; 42. Chain; 43. Crankshaft; 44. Connecting bar A; 45. Connecting bar B; 46. Connecting bar C; 47. Fixed slot; 48. Rotating shaft; 49. Iron bar. Specific embodiments

[0027] 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 the embodiments.

[0028] Refer to Figures 1-6 , an efficient smoke exhaust valve, including a housing 4, a dust-proof baffle 5 is arranged at the smoke inlet of the housing 4, and a winding device provided with the dust-proof baffle 5.

[0029] The winding device is composed of an outer housing of the winding device, a winding shaft, a guide rail and a bottom beam 6.

[0030] The outer housing is composed of a dust-proof baffle housing 1, a left end cover plate 8 and a right end cover plate 9. A smoke detector base 3 is arranged on the outer housing, and the smoke detector 2 is fixed on the smoke detector base 3.

[0031] The winding shaft of the winding device is composed of an electric part, a manual part and a winding part.

[0032] The electric part consists of a crown wheel 13, a motor A 14, a driving wheel 15, and a start button 30 outside the housing 4.

[0033] The manual part rotates the winding wheel A 28 by rotating the crankshaft 43. Rotating the winding wheel A 28 drives the inner gear disk B 41 to rotate. Through the transmission of the chain 42, the chain 42 drives the gear disk A 40 and the winding wheel B 29. The gear disk A 40 is connected to the guiding device 39, and the guiding device 39 is connected to the tail plug 18.

[0034] The winding part consists of several winding shafts 16 and sheaths 17.

[0035] The driving wheel 15 of the electric part and the tail plug 18 of the manual part are respectively connected to both ends of the winding part of the winding shaft, used to wind the dust-proof baffle 5.

[0036] The connection between the winding shaft of the winding device and the dust-proof baffle 5 is welded together by connection strip A 44, connection strip B 45, and connection strip C 46 according to specific circumstances.

[0037] The dust-proof baffle 5 is composed of several dust-proof baffles 5. The fixing holes B 35 are connected by fixing nuts B 36, fixing washers B 37, and fixing nuts B 38 through a threaded structure. End clips 7 are provided at both ends of the dust-proof baffle 5 and are movably connected in the guide rails.

[0038] The guide rails of the winding device consist of the left guide rail 10 and the right guide rail 11 on both sides, and the guide rail wool strip 12.

[0039] An electromagnet is provided on the bottom beam of the winding device and is fixedly connected to the housing.

[0040] A negative pressure fan is provided inside the housing 4. The fan blade 21 of the negative pressure fan is connected to the motor B 24 by a front lock nut 22 and a rear lock nut 23. The motor B 24 is fixed to the housing 4 by a fixing bracket 25.

[0041] The negative pressure fan consists of a front protective cover 19 and a rear protective cover 20, and is fixed to the housing 4 through a threaded structure by passing through the fixing holes A 31 with fixing nuts A 32, fixing washers A 33, and fixing nuts A 34.

[0042] The smoke outlet of the housing 4 consists of several electromagnets 26 and a movable plate 27. The rotating shaft 48 of the movable plate 27 is placed in the fixing groove 47. The rotating shaft 48 can rotate in the fixing groove 47, enabling the movable plate 27 to rotate upward along the rotating shaft 48 to open. An iron bar 49 is provided at the lower part of the movable plate 27.

[0043] Working principle:

[0044] When the smoke detector 2 is activated or smoke exhaust is required, the dust-proof baffle rolling device is first activated through an electric or manual device. The dust-proof baffle rolling device is activated by a 220V electrical signal connected to the fire protection system or by manually pressing the start button 30 on the housing 4. After activation, the bottom beam 6 and the electromagnet 26 are de-energized, the electromagnet loses its magnetic force, and the dust-proof baffle 5 and the movable plate 27 are in an openable state;

[0045] At the same time, the motor A14 on the rolling device starts to rotate. The motor A14 drives the driving wheel 15 connected to the motor A14. The driving wheel 15 drives the entire rolling shaft. Several winding shafts 16 and sheaths 17 on the rolling shaft rotate accordingly. The rolling shaft drives the dust-proof baffle 5 connected by the connecting strip. Under the action of the end clamp 7, the dust-proof baffle 5 rolls upward along the left guide rail 10 and the right guide rail 11, and the smoke inlet is opened;

[0046] At the same time, the negative pressure fan is activated. The fan blade 21 starts to rotate under the drive of the motor B24 to generate negative pressure, and the generated negative pressure draws external smoke into the housing 4.

[0047] As the negative pressure increases, the movable plate 27 of the smoke exhaust port is pushed open by the pressure of the negative pressure, and the smoke enters the smoke exhaust pipeline system along the opening.

[0048] When the smoke exhaust is completed, the operation of the smoke exhaust valve can be stopped by a 220V electrical signal connected to the fire protection system or by manually pressing the start button 30. When the stop signal is received, the negative pressure fan stops rotating, and the movable plate 27 of the smoke outlet falls back and is fixed by the electromagnet 26 under the action of the weight and gravity of the movable plate iron strip 49, and the smoke outlet is closed.

[0049] At the same time, the motor A14 on the rolling device of the dust-proof baffle 5 rotates in the reverse direction. Under the action of the end clamp 7, the dust-proof baffle 5 rolls downward along the left guide rail 10 and the right guide rail 11, and the smoke inlet is closed, ending the smoke exhaust process.

[0050] If the closing is abnormal, the crankshaft 43 can be rotated to drive the rolling wheel A28. The rolling wheel A28 drives the gear disk B41 fixed inside the right end cover plate 9. The gear disk B41 drives the gear disk A40 through the chain 42. The gear disk A40 drives the fixed and connected guiding device 39. The guiding device 39 controls the rotation of the rolling shaft through the connected tail plug 18. The position of the dust-proof baffle 5 is adjusted up and down as the rolling shaft rotates. The dust-proof baffle 5 is adjusted to the initial position, and the lower part of the dust-proof baffle 5 is fixed by the bottom beam 6, ending the smoke exhaust process.

[0051] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0052] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically and clearly defined.

[0053] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. An efficient smoke exhaust valve, comprising a housing, characterized in that, A rollable dust-proof baffle is provided at the port of the housing on the smoke inlet side, and the dust-proof baffle is equipped with a rolling device; A negative pressure fan is fixed inside the housing; A number of movable plates are provided at the port of the housing on the smoke outlet side. A rotating shaft is fixed at the upper end of the movable plate, and an iron bar is fixed at the lower end of the movable plate; the rotating shaft is fixedly connected to the housing through a fixed groove; a number of electromagnets are fixed on the housing at this port, and the electromagnets are adjacent to the rotating shaft.

2. The high-efficiency smoke exhaust valve according to claim 1, wherein The rolling device includes a motor A. A driving wheel is connected to the motor A, and the driving wheel is connected to the rolling part of the rolling shaft. The rolling part of the rolling shaft is composed of a number of scroll shafts and a sheath; the start button of the motor A is arranged on the housing; the rolling device also includes a bottom beam and guide rails provided on both sides of the dust-proof baffle. The dust-proof baffle is movably connected to the guide rails through end clamps; the bottom beam is fixed at the lower end of the smoke inlet side port of the housing, and an electromagnet is provided on the bottom beam.

3. The high-efficiency smoke exhaust valve according to claim 1, wherein The rolling device includes a crank. The crank is inserted into a rolling wheel A. The rolling wheel A is fixedly connected to a gear disk B. The gear disk B drives a gear disk A through a chain. The gear disk A is fixedly connected to a guiding device. The guiding device is connected to a tail plug. The tail plug is connected to the rolling part of the rolling shaft. The rolling part of the rolling shaft is composed of a number of scroll shafts and a sheath; the rolling device also includes a bottom beam and guide rails provided on both sides of the dust-proof baffle. The dust-proof baffle is movably connected to the guide rails through end clamps; the bottom beam is fixed at the lower end of the smoke inlet side port of the housing, and an electromagnet is provided on the bottom beam.

4. The high-efficiency smoke exhaust valve according to claim 1, wherein, The negative pressure fan is provided with a protective cover.

5. The high-efficiency smoke exhaust valve according to claim 1, wherein The fan blades of the negative pressure fan are fixed on a motor B by lock nuts, and the motor B is connected to the housing through a fixing bracket.

6. The high-efficiency smoke exhaust valve according to claim 1, characterized in that, The housing is equipped with a smoke alarm.

Images