Smoke exhaust device for building fire protection engineering

Abstract

The utility model belongs to the technical field of smoke exhaust equipment, and particularly relates to a smoke exhaust device for building fire protection engineering. Comprising a ventilation pipe body and a flow air device arranged in the ventilation pipe body, and further comprises a sealing plate for sealing an air inlet of the ventilation pipe body, and in a closed state, the sealing plate abuts against the ventilation pipe body at the air inlet; in the opening state, the sealing plate is separated from the ventilation pipe body, and an air inlet notch is formed between the sealing plate and the ventilation pipe body; the effect of preventing the external environment from interfering the internal environment of the building is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of smoke exhaust equipment, and in particular relates to a smoke exhaust device for building fire protection engineering. Background Art

[0002] The smoke exhaust device in building fire protection engineering is an important system to exhaust harmful smoke outside the building in case of fire to protect personnel safety and reduce property losses. However, the existing smoke exhaust device is always in the open state in daily use, and the external environment is easy to interfere with the environment inside the building. For example, smoke, smog and even cold air can easily enter the building through the smoke exhaust device in the open state and affect the internal environment. Utility Model Content

[0003] The purpose of the utility model is to provide a smoke exhaust device for building fire protection engineering in view of the above-mentioned existing technical problems, so as to achieve the effect of preventing the external environment from interfering with the internal environment of the building.

[0004] In view of this, the utility model provides a smoke exhaust device for building fire protection engineering, including a ventilation pipe body and an air flow device arranged in the ventilation pipe body, and also including a closing plate for blocking the air inlet of the ventilation pipe body. In a closed state, the closing plate and the ventilation pipe body at the air inlet are in contact with each other; in an open state, the closing plate and the ventilation pipe body are separated, and an air inlet gap is formed between the closing plate and the ventilation pipe body.

[0005] In the present technical solution, when there is no fire inside the building and there is no need for exhaust and smoke exhaust, and at the same time, when it is necessary to avoid the external environment from affecting the internal environment, the closing plate arranged at the air inlet is in contact with the inner wall of the ventilation duct body, and the sealing is completed at the air inlet to avoid the external environment from affecting the internal environment of the building. When a fire occurs inside the building, it is necessary to exhaust harmful smoke, and the closing plate is moved to the outside of the ventilation duct body and separated from the ventilation duct body. An air inlet gap is formed between the closing plate and the ventilation duct body, and smoke exhaust is performed, which can avoid the external environment from affecting the internal environment.

[0006] In the above technical solution, further, the closing plate is slidably connected to the lining pipe inside the ventilation pipe body.

[0007] In the present technical solution, the inner liner tube and the ventilation tube body have the same shape, and the side wall of the inner liner tube and the ventilation tube body are in contact with each other and are fixedly connected.

[0008] In the above technical solution, further, a guide column is fixedly connected to the closing plate, and the guide column is slidably arranged in the inner lining tube. The inner lining tube is provided with a sliding groove on one side of the guide column, and a driving rod is slidably arranged in the sliding groove. One end of the driving rod is fixedly connected to the closing plate, and the sliding groove is connected to the driving groove. A driving device is also included, and the driving device acts on the driving rod through the driving groove.

[0009] In the technical solution, in this embodiment, there are four guide columns, which are respectively arranged at the four end corners of the closing plate. The guide columns are slidably penetrated into the inner lining tube to limit the movement direction of the closing plate and ensure that the closing plate moves smoothly. The driving device passes through the driving groove and acts on the driving rod in the sliding groove, so that the driving rod drives the closing plate to move along the sliding groove to complete the opening or closing of the vent.

[0010] In the above technical solution, further, the driving device includes a first motor, an output end of the first motor is fixedly connected to a driving gear, and a rack structure is provided on the driving gear and meshes with the driving rod.

[0011] In the present technical solution, the first motor is fixedly connected to the outer wall of the ventilation pipe body, and the driving gear coaxially fixedly connected to the output end of the first motor passes through the driving groove and engages with the rack structure on the driving rod slidably set in the sliding groove. The driving gear is driven by the first motor to rotate synchronously, driving the closing plate connected to the driving rod to move, thereby completing the opening and closing of the closing plate and the ventilation pipe body.

[0012] In the above technical solution, further, a sealing layer is provided on the side surface of the closing plate.

[0013] In the present technical solution, the sealing layer is a sealing rubber. When the sealing plate is in a closed state, the sealing layer is tightly pressed against the ventilation pipe body, which can effectively prevent gas or other substances from passing through.

[0014] In the above technical solution, further, a flow equalizing device is provided at the air inlet.

[0015] In the above technical solution, further, the flow uniforming device includes a first bracket connected to the inner lining tube, a column is arranged at the center of the first bracket, a conical head is arranged on the side of the column facing the air inlet, and a first diffuser and a second diffuser are arranged on the circumference of the side surface of the column.

[0016] In the above technical solution, further, the first diffuser and the second diffuser are oriented in opposite directions.

[0017] In the present technical solution, smoke generated by a fire in a building is sucked into the ventilation duct body through the air inlet gap formed between the closing plate and the ventilation duct body, and the conical head, the first diffuser and the second diffuser in the direction opposite to the first diffuser in the flow equalizer contact the smoke to diffuse and guide the smoke, thereby reducing the direct impact of the smoke on the air flow device and providing a certain degree of protection for the air flow device.

[0018] In the above technical solution, further, an activated carbon filter plate and a glass fiber filter are sequentially arranged in the ventilation pipe body.

[0019] In this technical solution, harmful chemicals, gases and particles in the exhaust flue gas are captured and adsorbed to avoid direct discharge and environmental pollution.

[0020] The beneficial effects of the utility model are:

[0021] 1. When there is no fire inside the building and there is no need to exhaust or smoke, and it is necessary to avoid the external environment from affecting the internal environment, the closing plate set at the air inlet is in contact with the inner wall of the ventilation pipe body, and the air inlet is sealed to avoid the external environment from affecting the internal environment of the building. When a fire occurs inside the building, it is necessary to exhaust harmful smoke, and the closing plate moves to the outside of the ventilation pipe body and separates from the ventilation pipe body, forming an air inlet gap between the closing plate and the ventilation pipe body, and performing smoke exhaust work, which can avoid the external environment from affecting the internal environment;

[0022] 2. A flow equalizer is provided at the air inlet. The conical head, the first diffuser and the second diffuser in the flow equalizer in the opposite direction to the first diffuser contact the smoke to diffuse and guide the smoke, thereby reducing the direct impact of the smoke on the air flow device and protecting the air flow device to a certain extent.

[0023] 3. The ventilation pipe body is also equipped with activated carbon filter plates and glass fiber filters in sequence to capture and absorb harmful chemicals, gases and particles in the exhaust flue gas to avoid direct discharge and environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional view of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the utility model (the closing plate is in the open state);

[0026] Figure 3 It is a structural schematic diagram of the flow uniforming device.

[0027] The symbols in the figure are:

[0028] 1. Ventilation pipe body; 2. Air flow device; 3. Closing plate; 4. Air inlet; 5. Air inlet notch; 6. Lining pipe; 7. Guide column; 8. Sliding groove; 9. Driving rod; 10. Rack structure; 11. First motor; 12. Driving gear; 13. Sealing layer; 14. Flow uniformity device; 15. Column; 16. Conical head; 17. First diffuser; 18. Second diffuser; 19. Activated carbon filter plate; 20. Glass fiber filter; 21. First bracket. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0030] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0032] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0033] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0034] Embodiment 1:

[0035] like Figure 1-3 As shown, this embodiment provides a smoke exhaust device for building fire protection engineering, including a ventilation pipe body 1 and an air flow device 2 arranged in the ventilation pipe body 1, characterized in that it also includes a closing plate 3 for blocking the air inlet 4 of the ventilation pipe body 1, in a closed state, the closing plate 3 and the ventilation pipe body 1 at the air inlet 4 are in contact with each other; in an open state, the closing plate 3 and the ventilation pipe body 1 are separated, and an air inlet gap 5 is formed between the closing plate 3 and the ventilation pipe body 1. When there is no fire inside the building, there is no need to exhaust or smoke, and it is necessary to avoid the external environment from affecting the internal environment, the closing plate 3 arranged at the air inlet 4 is in contact with the inner wall of the ventilation pipe body 1, and the air inlet 4 is sealed to avoid the external environment from affecting the internal environment of the building. When a fire occurs inside the building, it is necessary to exhaust harmful smoke, the closing plate 3 moves to the outside of the ventilation pipe body 1 and separates from the ventilation pipe body 1, and an air inlet gap 5 is formed between the closing plate 3 and the ventilation pipe body 1, and smoke exhaust is performed, which can avoid the external environment from affecting the internal environment.

[0036] The air flow device 2 is a flow fan. The arrangement of the flow fan in the pipe body and the flow fan itself are common knowledge that those skilled in the art should know, and are not improvements of this patent, so they will not be elaborated.

[0037] like Figure 1 and Figure 2, as shown, the closing plate 3 is slidably connected to the inner lining tube 6 of the ventilation tube body 1. The inner lining tube 6 and the ventilation tube body 1 have the same shape, and the side wall of the inner lining tube 6 is in contact with the ventilation tube body 1 and is fixedly connected. A guide column 7 is fixedly connected to the closing plate 3, and the guide column 7 is slidably inserted into the inner lining tube 6. The inner lining tube 6 is provided with a sliding groove 8 on one side of the guide column 7, and a driving rod 9 is slidably arranged in the sliding groove 8. One end of the driving rod 9 is fixedly connected to the closing plate 3, and the sliding groove 8 is connected to the driving groove, and also includes a driving device, which acts on the driving rod 9 through the driving groove. In this embodiment, there are four guide columns 7, which are respectively arranged at the four end corners of the closing plate 3. The guide column 7 is slidably inserted into the inner lining tube 6 to limit the movement direction of the closing plate 3 and ensure that the closing plate 3 moves smoothly. The driving device passes through the driving groove and acts on the driving rod 9 in the sliding groove 8, so that it drives the closing plate 3 to move along the sliding groove 8 to complete the opening or closing of the vent.

[0038] The driving device includes a first motor 11, and a driving gear 12 is fixedly connected to the output end of the first motor 11, and the driving gear 12 is meshed with a rack structure 10 provided on the driving rod 9. The first motor 11 is fixedly connected to the outer wall of the ventilation pipe body 1, and the driving gear 12 coaxially fixedly connected to the output end of the first motor 11 passes through the driving groove and meshes with the rack structure 10 on the driving rod 9 slidably provided in the sliding groove 8. The first motor 11 drives the driving gear 12 to rotate synchronously, and drives the closing plate 3 connected to the driving rod 9 to move, so as to complete the opening and closing of the closing plate 3 and the ventilation pipe body 1.

[0039] The side surface of the closing plate 3 is provided with a sealing layer 13. The sealing layer 13 is a sealing rubber. When the closing plate 3 is closed, the sealing layer 13 is tightly against the ventilation pipe body 1, which can effectively prevent gas or other substances from passing through.

[0040] The ventilation pipe body 1 is also provided with an activated carbon filter plate 19 and a glass fiber filter screen 20 in sequence to capture and adsorb harmful chemicals, gases and particles in the exhaust flue gas to avoid direct discharge and environmental pollution.

[0041] Embodiment 2:

[0042] This embodiment provides a smoke exhaust device for building fire protection engineering, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0043] like Figure 1 and Figure 3As shown, a flow equalizer 14 is provided at the air inlet 4. The flow equalizer 14 includes a first bracket 21 connected to the inner liner pipe 6, a column 15 is provided at the center of the first bracket 21, a conical head 16 is provided on the side of the column 15 facing the air inlet 4, and a first diffuser 17 and a second diffuser 18 are provided on the circumference of the side of the column 15. The first diffuser 17 and the second diffuser 18 face in opposite directions. The smoke generated by a fire in a building is sucked into the ventilation pipe body 1 through the air inlet gap 5 formed between the closing plate 3 and the ventilation pipe body 1. The conical head 16, the first diffuser 17 and the second diffuser facing in the opposite direction to the first diffuser 17 in the flow equalizer 14 contact the smoke so that the smoke diffuses and guides the smoke, reducing the direct impact of the smoke on the air flow device 2, and providing a certain protection for the air flow device 2.

[0044] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A smoke exhaust device for building fire protection engineering, comprising a ventilation pipe body (1) and an air flow device (2) arranged in the ventilation pipe body (1), characterized in that: It also includes a closing plate (3) for blocking the air inlet (4) of the ventilation tube body (1); in a closed state, the closing plate (3) and the ventilation tube body (1) at the air inlet (4) are in contact with each other; in an open state, the closing plate (3) and the ventilation tube body (1) are separated, an air inlet gap (5) is formed between the closing plate (3) and the ventilation tube body (1), and a flow equalizing device (14) is provided at the air inlet (4).

2. A smoke exhaust device for building fire protection engineering according to claim 1, characterized in that: The closing plate (3) is slidably connected to the inner lining tube (6) of the ventilation pipe body (1).

3. A smoke exhaust device for building fire protection engineering according to claim 2, characterized in that: The closing plate (3) is fixedly connected with a guide column (7), the guide column (7) is slidably arranged in the inner lining tube (6), the inner lining tube (6) is provided with a sliding groove (8) on one side of the guide column (7), a driving rod (9) is slidably arranged in the sliding groove (8), one end of the driving rod (9) is fixedly connected with the closing plate (3), the sliding groove (8) is connected with a driving groove, and also includes a driving device, which acts on the driving rod (9) through the driving groove.

4. A smoke exhaust device for building fire protection engineering according to claim 3, characterized in that: The driving device comprises a first motor (11), the output end of the first motor (11) is fixedly connected to a driving gear (12), and the driving gear (12) is meshed with a rack structure (10) provided on a driving rod (9).

5. A smoke exhaust device for building fire protection engineering according to claim 4, characterized in that: A sealing layer (13) is provided on the side surface of the closing plate (3).

6. A smoke exhaust device for building fire protection engineering according to claim 1, characterized in that: The flow homogenizing device (14) comprises a first bracket (21) connected to the inner lining tube (6), a column (15) is arranged at the center of the first bracket (21), a conical head (16) is arranged on the side of the column (15) facing the air inlet (4), and a first diffuser (17) and a second diffuser (18) are arranged on the circumference of the side surface of the column (15).

7. A smoke exhaust device for building fire protection engineering according to claim 6, characterized in that: The first diffuser sheet (17) and the second diffuser sheet (18) face in opposite directions.

8. A smoke exhaust device for building fire protection engineering according to any one of claims 1 to 7, characterized in that: An activated carbon filter plate (19) and a glass fiber filter screen (20) are also arranged in sequence in the ventilation pipe body (1).

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