Smoke suction device for fireproof door

Abstract

The utility model relates to a smoke suction device for a fireproof door, which comprises a door leaf and a suction source, the door leaf is provided with a smoke collection cavity and a plurality of smoke suction ports, and the smoke suction ports are uniformly distributed along the edge of the door leaf and are communicated with the smoke collection cavity; and the suction source is used for providing a suction effect towards the exterior of the building, and is communicated with the smoke collecting cavity. According to the utility model, the smoke suction port is distributed along the edge of the door leaf and faces the door crack, when smoke is formed, the smoke suction effect is formed at the gap between the door frame and the door leaf by virtue of the matching of the suction source, and when the smoke reaches the gap, the smoke can be sucked away by the smoke suction port in advance, so that the situation that the smoke continues to spread into the door crack is reduced, and the service life of the door is prolonged. Therefore, the effect of collecting the flue gas is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire doors, in particular to a smoking device for fire doors. Background Art

[0002] A fire door is a special door that can isolate the fire source and prevent the spread of fire within a certain period of time to ensure that the affected people have the opportunity to evacuate. It is usually installed in fire compartments, evacuation stairwells, vertical shafts and other places.

[0003] During an actual fire, the door leaf usually cannot maintain an adequate seal with the door frame when closed, causing smoke to easily seep from one side of the fire through the door gap to the other side, causing a large amount of smoke to spread in the building's safety passage, thus affecting the escape process of people. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the following technical problem in the prior art: due to the existence of a gap between the door leaf and the door frame, the fire door cannot effectively prevent the penetration of smoke during actual use. To solve this technical problem, the present utility model provides the following technical solutions:

[0006] A smoking device for a fire door, comprising a door leaf and a suction source, wherein:

[0007] The door leaf is provided with a smoke collecting chamber and a plurality of smoking openings, the plurality of smoking openings are evenly distributed along the edge of the door leaf and are in communication with the smoke collecting chamber;

[0008] The suction source is used to provide a suction effect toward the outside of the building and is connected to the smoke collecting chamber.

[0009] As a preferred technical solution for a smoking device for a fire door, it also includes a closing component, and the smoking port is kept closed or opened by the closing component, and the closing component realizes its own movement through the pressure it is subjected to.

[0010] As a preferred technical solution for a smoking device for a fire door, the closing component includes a shielding portion movably arranged on the door leaf, which is located at the smoking port. The door leaf is provided with a through-area that keeps its two sides connected. It also includes a pressure-bearing portion movably arranged at the through-area in an intercepting manner, which maintains force cooperation with the shielding portion.

[0011] As an optimal technical solution for a smoking device for a fire door, the pressure-bearing portion is in sliding cooperation with the door leaf and is connected to the edge of the penetration area by a sealing strip.

[0012] As an optimal technical solution for a smoking device for a fire door, a plurality of guide portions are constructed at the edge of the penetration area, and the pressure-bearing portion is in sliding cooperation with the guide portions.

[0013] As an optimal technical solution for a smoking device for a fire door, it also includes a connecting portion, which is fixedly connected between the pressure-bearing portion and the shielding portion.

[0014] The smoking device for fire doors provided by the present invention has the beneficial effect that: in this invention, the smoking ports are distributed along the edge of the door leaf and face the door gap. When smoke is formed, with the help of the suction source, an air suction effect is formed in the gap between the door frame and the door leaf. When the smoke reaches the gap, it can be sucked away by the smoking port in advance, thereby reducing the situation of continuing to spread into the door gap, thereby achieving the effect of collecting smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0016] Figure 1 This is a three-dimensional diagram of one embodiment of the present invention.

[0017] Figure 2 For about Figure 1 Another perspective view of .

[0018] Figure 3 For about Figure 1 Schematic diagram of the three-dimensional cutout of the middle structure.

[0019] Figure 4 For about Figure 3 Another perspective view of .

[0020] Figure 5 For about Figure 4 A separate diagram showing the structure of the middle part.

[0021] Figure 6 It is a structural schematic diagram of the suction source in the present utility model.

[0022] Figure numerals: 1. Door leaf; 2. Smoke collecting chamber; 3. Smoke outlet; 4. Closure assembly; 401. Shielding part; 402. Pressure-bearing part; 5. Penetration area; 6. Sealing strip; 7. Guide part; 8. Connecting part; 9. Docking port. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0026] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views of device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0027] Reference Figure 1-6 One embodiment of the present invention provides a smoking device for a fire door. The device uses a door leaf 1 as a mounting carrier and also includes a suction source. Regarding the structure, specifically:

[0028] The door leaf 1 is provided with a smoke collecting chamber 2 and a plurality of smoking openings 3. The plurality of smoking openings 3 are evenly distributed along the edge of the door leaf 1 and are in communication with the smoke collecting chamber 2.

[0029] The suction source is used to provide a suction effect toward the outside of the building and is connected to the smoke collecting chamber 2;

[0030] Based on the above, the suction source provides suction force, and the air in the smoke collecting chamber 2 and the smoke outlet 3 is sucked away, thereby forming a pressure effect at the smoke outlet 3. During a fire, when smoke spreads to the door gap, the smoke is directly sucked into the smoke outlet 3, thereby preventing the smoke at the door gap from continuing to spread into the door gap, thereby achieving the effect of smoke exhaust, thereby reducing the phenomenon of smoke spreading to the safe side of the fire door;

[0031] For the suction source in the present invention, a smoke exhaust pipe can be set up, and exhaust elements such as exhaust fans, suction pumps and other elements can be set in the pipe. One end of the pipe extends to the periphery of the building, and a docking port 9 is provided on the door leaf 1. The docking port 9 is connected to the smoke collecting chamber 2. The other end of the pipe extends to the door frame and is connected to the docking port 9 by means of a hose. The docking port can be set on the side or face of the door leaf 1 as needed.

[0032] Further, refer to Figure 1-5 In order to keep the smoke outlet 3 open at a reasonable time, the utility model further includes a closing component 4, which keeps the smoke outlet 3 closed or open. Specifically, when the closing component 4 is subjected to pressure on the fire side of the door leaf 1, it opens the smoke outlet 3, and when it is not subjected to pressure, it keeps the smoke outlet 3 closed. During a fire, the indoor temperature rises and the indoor pressure increases, and the closing component 4 is subjected to pressure, thereby controlling the smoke outlet 3 to open. Otherwise, the smoke outlet 3 is kept closed. This design can prevent the phenomenon of large amounts of dust gathering in the smoke outlet 3 under normal circumstances.

[0033] As for the activation of the exhaust element, a fire source collection element, such as a smoke alarm or a light collector, can also be set up indoors, and a signal connection can be established between it and the exhaust element, so that the exhaust element can be activated at the necessary time.

[0034] Further, refer to Figure 1-5 The closing component 4 includes a shielding portion 401 movably arranged on the door leaf 1. The shielding portion 401 is used to have a shielding effect and can be a block or plate-shaped structure. The shielding portion 401 is located at the smoking port 3. The door leaf 1 is provided with a through-area 5 that keeps both sides connected. The closing component 4 also includes a pressure-bearing portion 402 movably arranged at the through-area 5 in an intercepting manner. According to this, one side of the pressure-bearing portion 402 faces the room and the other side faces the safety passage. The pressure-bearing portion 402 maintains force cooperation with the shielding portion 401. Specifically, when the pressure-bearing portion 402 is moved under force, the force can be transmitted to the shielding portion. The blocking part 401 drives the shielding part 401 to move synchronously; the pressure-bearing part 402 needs to have a certain surface area to withstand the pressure brought by the expansion of the indoor gas. For example, a plate-shaped structure can be adopted. When the pressure in the room increases due to a fire, the pressure-bearing part 402 moves to the side away from the room, thereby synchronously driving the shielding part 401 to move and realizing the opening of the smoking port 3. Under normal circumstances, the pressure-bearing part 402 will synchronously drive the shielding part 401 to reset, thereby maintaining the shielding state of the smoking port 3. This design enables the closing component 4 to automatically control the opening of the smoking port 3 according to whether a fire occurs.

[0035] Further, refer to Figure 1-5 As for the activity mode of the pressure-bearing part 402, specifically, the pressure-bearing part 402 is in sliding cooperation with the door leaf 1, and is connected to the edge of the through-area 5 with a sealing strip 6. The sealing strip 6 has elastic force to keep the pressure-bearing part 402 in a fixed position in the observation area when it is normal, and at the same time, the pressure-bearing part 402 and the edge of the through-area 5 have a sealing effect.

[0036] Further, refer to Figure 5 A plurality of guide portions 7 are constructed at the edge of the through-region 5 , and the pressure-receiving portion 402 slides in cooperation with the guide portions 7 , thereby increasing the stability of the pressure-receiving portion 402 during the sliding process.

[0037] Further, refer to Figure 3 and Figure 4 Regarding the force coordination method between the pressure-bearing part 402 and the shielding part 401, specifically, the utility model also includes a connecting part 8, which is fixedly connected between the pressure-bearing part 402 and the shielding part 401, so that the pressure-bearing part 402 and the shielding part 401 can maintain a hard connection to increase the continuity of the synchronous movement between the two. The connecting part 8 can adopt a structure such as a support rod.

[0038] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0039] 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 the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A smoking device for a fire door, characterized by: The device comprises a door leaf (1) and a suction source, wherein: The door leaf (1) is provided with a smoke collecting chamber (2) and a plurality of smoking openings (3), wherein the plurality of smoking openings (3) are evenly distributed along the edge of the door leaf (1) and are in communication with the smoke collecting chamber (2); The suction source is used to provide a suction effect toward the outside of the building and is connected to the smoke collecting chamber (2).

2. The smoking device for fire doors according to claim 1, characterized in that: It also comprises a closing component (4), the smoking port (3) is kept closed or opened by the closing component (4), and the closing component (4) realizes its own movement by the pressure it receives.

3. The smoke-smoking device for a fire door according to claim 2, characterized in that: The closing assembly (4) comprises a shielding portion (401) movably arranged on the door leaf (1), which is located at the position of the smoking port (3); the door leaf (1) is provided with a through-area (5) for maintaining communication between its two sides; and further comprises a pressure-bearing portion (402) movably arranged at the through-area (5) in an intercepting manner, which maintains force cooperation with the shielding portion (401).

4. The smoking device for a fire door according to claim 3, characterized in that: The pressure-bearing portion (402) is in sliding engagement with the door leaf (1) and is connected to the edge of the penetration area (5) via a sealing strip (6).

5. The smoking device for a fire door according to claim 4, characterized in that: A plurality of guide portions (7) are constructed at the edge of the penetration area (5), and the pressure-bearing portion (402) is in sliding cooperation with the guide portions (7).

6. The smoking device for a fire door according to claim 4, characterized in that: It also includes a connecting portion (8), which is fixedly connected between the pressure-bearing portion (402) and the shielding portion (401).

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