Novel fire-resistant air pipe capable of preventing and exhausting smoke

Abstract

The utility model belongs to the technical field of smoke prevention and exhaust air pipes, and particularly relates to a novel smoke prevention and exhaust fire-resistant air pipe which comprises a fire-resistant air pipe body, a socket is fixed at one end of the fire-resistant air pipe body, an inserting groove arranged in the length direction of the socket is formed in the socket, and a clamping plate matched with the inserting groove in an inserting mode is fixed at the other end of the fire-resistant air pipe body. A blocking assembly is arranged at one end of the socket, and a locking assembly is arranged on the socket. According to the fireproof air pipe, the two fireproof air pipe bodies which are spliced together are locked and connected through the arranged locking assembly, the splicing stability of the two fireproof air pipe bodies is effectively improved, meanwhile, the two fireproof air pipe bodies are tensioned, and therefore the sealing rubber pads at the butt joint ends of the two fireproof air pipe bodies generate elastic expansion; the sealing performance of splicing of the two fire-resistant air pipe bodies is effectively improved, and the problem that smoke leaks from a gap in the connecting position of the two fire-resistant air pipe bodies is solved.

Description

Technical Field

[0001] This utility model belongs to the field of smoke exhaust duct technology, specifically relating to a new type of smoke exhaust fire-resistant duct. Background Technology

[0002] Fire-fighting smoke control systems require smoke extraction ducts, which are ubiquitous in office buildings, hotels, restaurants, theaters, shopping malls, hospitals, underground parking lots, and other places requiring smoke control. To prevent these ducts from collapsing, deforming, or being damaged during a fire, high fire-resistance ducts are commonly used in the market. However, existing high fire-resistance ducts have limitations during installation. The front and rear ends of adjacent ducts are difficult to position and connect quickly. Furthermore, after assembly, significant vibrations can cause gaps at the joints, leading to smoke leakage during exhaust. This presents a solution to this problem.

[0003] For example, Chinese Patent Publication No. CN216344387U discloses a smoke exhaust duct with a high fire resistance limit, relating to the field of smoke exhaust duct technology. This utility model includes a duct body and a movable limiting post. A front connecting seat is provided at the front end of the duct body, and the movable limiting post is elastically connected to the front of the front connecting seat. A rear connecting seat is provided at the rear end of the duct body, and a limiting hole is provided on the rear connecting seat. The movable limiting post on the duct body is inserted into the limiting hole on its adjacent duct body. This utility model aligns the front and rear connecting seats on two adjacent smoke exhaust ducts and inserts the bent portion of the front connecting seat into the corresponding slot on the rear connecting seat. This allows for rapid splicing of two smoke exhaust ducts and avoids gaps caused by vibration between the ducts. Simultaneously, the movable limiting post allows for quick fixing of the front and rear connecting seats, improving the installation efficiency of the smoke exhaust duct.

[0004] The above application still has shortcomings. When assembling the duct, it is necessary to manually press the movable limiting post to retract it before assembly. Similarly, when disassembling the duct, it is also necessary to press the movable limiting post to remove the duct. The operation is inconvenient and affects the efficiency of duct assembly and disassembly. In addition, the sealing effect of the gaps at the duct connection is insufficient, and flue gas can easily leak out from small gaps.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide a new type of smoke-proof and fire-resistant air duct to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A novel fire-resistant smoke exhaust duct includes a fire-resistant duct body. A socket is fixed to one end of the fire-resistant duct body. The socket has a slot arranged along the length of the socket. A card plate that fits into the slot is fixed to the other end of the fire-resistant duct body. A stop component is provided at one end of the socket to stop and position the card plate inserted into the slot. A locking component is provided on the socket to lock the card plate inserted into the slot.

[0009] Preferably, the blocking component includes a protrusion fixed at one end of the socket, an arc-shaped spring plate rotatably connected to the protrusion, a positioning hole on the side of the plate, and a round protrusion that fits into the positioning hole fixed on the side of the arc-shaped spring plate.

[0010] Preferably, the arc-shaped spring plate is provided with a slanted lever plate.

[0011] Preferably, a sealing rubber gasket is attached and fixed to one side of the fire-resistant duct body.

[0012] Preferably, the locking assembly includes a threaded hole on the side of the socket, and a locking bolt is threadedly connected to the side of the card plate, the thread of the locking bolt being threadedly adapted to the threaded hole.

[0013] Preferably, one end of the slot is closed.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. When installing and assembling the fire-resistant duct body, insert the clamping plate on one end of one fire-resistant duct body into the slot on the other end of the socket of another fire-resistant duct body. The two fire-resistant duct bodies are then connected and assembled through the cooperation of the slot and the clamping plate. After the clamping plate is inserted into the slot, the set stop component stops and limits the clamping plate inserted into the slot, thereby positioning the two fire-resistant duct bodies and completing the rapid assembly of the two fire-resistant duct bodies. This eliminates the need to install multiple screws and effectively improves the assembly efficiency of the fire-resistant duct body.

[0016] 2. The locking components are used to lock the two fire-resistant duct bodies together, which effectively improves the stability of the splicing of the two fire-resistant duct bodies and tightens the two fire-resistant duct bodies. This causes the sealing rubber gasket at the joint of the two fire-resistant duct bodies to expand elastically, which effectively improves the sealing performance of the splicing of the two fire-resistant duct bodies and prevents the problem of smoke leakage from the gap at the joint of the two fire-resistant duct bodies. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ;

[0018] Figure 2 for Figure 1 Enlarged structural diagram at point B;

[0019] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model;

[0020] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0021] Figure 5 This is a partial structural diagram of the stop component of this utility model.

[0022] Explanation of key figure labels:

[0023] 1. Stopping assembly; 101. Protruding post; 102. Arc-shaped spring plate; 103. Angled lever plate; 104. Positioning hole; 2. Locking assembly; 201. Locking bolt; 202. Threaded hole; 3. Fire-resistant duct body; 4. Socket; 5. Slot; 6. Card plate; 7. Sealing rubber gasket. Detailed Implementation

[0024] The technical solution of this utility model patent will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on the utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] See attached document Figure 1-5 A novel fire-resistant smoke exhaust duct includes a fire-resistant duct body 3. A socket 4 is fixed to one end of the fire-resistant duct body 3. A slot 5 arranged along the length of the socket 4 is opened inside the socket 4. A locking plate 6, which mates with the slot 5, is fixed to the other end of the fire-resistant duct body 3. A stopping component 1 is provided at one end of the socket 4 to stop and position the locking plate 6 inserted into the slot 5. A locking component 2 is provided on the socket 4 to lock the locking plate 6 inserted into the slot 5. During installation and assembly of the fire-resistant duct bodies 3, the locking plate 6 at one end of one fire-resistant duct body 3 is inserted into the slot 5 on the other end of the socket 4 of the other fire-resistant duct body 3. The two fire-resistant duct bodies 3 are then connected and assembled through the cooperation of the slot 5 and the locking plate 6. After being inserted into the slot 5, the locking component 1 stops and limits the insertion of the card plate 6 into the slot 5, thereby positioning the two fire-resistant duct bodies 3 and completing the rapid assembly of the two fire-resistant duct bodies 3. This eliminates the need to install multiple screws and effectively improves the assembly efficiency of the fire-resistant duct bodies 3. The locking component 2 locks the two fire-resistant duct bodies 3 together, effectively improving the stability of the splicing of the two fire-resistant duct bodies 3 and tightening the two fire-resistant duct bodies 3. This causes the sealing rubber gasket 7 at the joint of the two fire-resistant duct bodies 3 to expand elastically, effectively improving the sealing performance of the splicing of the two fire-resistant duct bodies 3 and preventing the leakage of smoke from the gap at the joint of the two fire-resistant duct bodies 3.

[0028] Further as Figure 1 , Figure 2 and Figure 5As shown, it is worth noting that the fixing component 1 includes a protrusion 101 fixed at one end of the socket 4, an arc-shaped spring plate 102 rotatably connected to the protrusion 101, a positioning hole 104 on the side of the clamping plate 6, and a round protrusion that fits into the positioning hole 104 fixed on the side of the arc-shaped spring plate 102; when installing the fire-resistant duct body 3, the clamping plate 6 on one end of one fire-resistant duct body 3 is inserted into the slot 5 on the other end of the socket 4 of the other fire-resistant duct body 3, so that the two fire-resistant duct bodies are connected by the cooperation of the slot 5 and the clamping plate 6. The two fire-resistant duct bodies 3 are assembled by insertion. When the card plate 6 is inserted into the slot 5, the arc-shaped spring plate 102 is rotated to move to one end of the card plate 6. The round protrusion on the side of the arc-shaped spring plate 102 is then engaged in the positioning hole 104. The arc-shaped spring plate 102 provides elastic stop and limit for the card plate 6 inserted into the slot 5, thereby positioning the assembly of the two fire-resistant duct bodies 3 and completing the rapid assembly of the two fire-resistant duct bodies 3. This eliminates the need to install multiple screws and effectively improves the assembly efficiency of the fire-resistant duct bodies 3.

[0029] Further as Figure 2 As shown, it is worth noting that the arc-shaped spring plate 102 is provided with a slanted lever 103; in actual operation, the slanted lever 103 facilitates the movement of the arc-shaped spring plate 102, which facilitates the release of the arc-shaped spring plate 102 from the stop limit of the clamping plate 6, and facilitates the removal of the fire-resistant air duct body 3.

[0030] Further as Figure 1 and Figure 2 As shown, it is worth noting that a sealing rubber gasket 7 is attached and fixed to one side of the fire-resistant duct body 3. In actual operation, the sealing rubber gasket 7 is used to seal the connection gap between the two fire-resistant duct bodies 3, thereby improving the sealing performance of the fire-resistant duct body 3 after assembly.

[0031] Further as Figure 1 , Figure 3 and Figure 4 As shown, it is worth noting that the locking component 2 includes a threaded hole 202 on the side of the socket 4, and a locking bolt 201 is threadedly connected to the side of the card plate 6. The thread of the locking bolt 201 is threaded into the threaded hole 202. In operation, when the card plate 6 is inserted into the slot 5, the threaded hole 202 and the locking bolt 201 are aligned. By rotating the locking bolt 201, the thread of the locking bolt 201 is screwed into the threaded hole 202. This tightens the two fire-resistant duct bodies 3 assembled together to a certain extent, causing the sealing rubber gasket 7 at the joint of the two fire-resistant duct bodies 3 to expand elastically. This effectively improves the sealing performance of the joint of the two fire-resistant duct bodies 3 and prevents smoke from leaking out from the gap at the joint of the two fire-resistant duct bodies 3.

[0032] This solution includes the following working process: When installing the fire-resistant duct body 3, the retaining plate 6 on one end of one fire-resistant duct body 3 is inserted into the slot 5 on the socket 4 at the other end of the other fire-resistant duct body 3. The two fire-resistant duct bodies 3 are then connected and assembled through the cooperation of the slot 5 and the retaining plate 6. After the retaining plate 6 is inserted into the slot 5, the arc-shaped spring plate 102 is rotated, causing it to move to one end of the retaining plate 6. This allows the round protrusion on the side of the arc-shaped spring plate 102 to engage with the positioning hole 104, thereby enabling the arc-shaped spring plate 102 to engage with the retaining plate 6 inserted into the slot 5. The elastic stop limit position positions the two fire-resistant duct bodies 3 for rapid assembly. When the clamping plate 6 is inserted into the slot 5, the threaded hole 202 and the locking bolt 201 are aligned. By rotating the locking bolt 201, the screw of the locking bolt 201 is screwed into the threaded hole 202, thereby tightening the two fire-resistant duct bodies 3 to a certain extent. This causes the sealing rubber gasket 7 at the joint of the two fire-resistant duct bodies 3 to expand elastically, effectively improving the sealing performance of the joint.

[0033] Further as Figure 5 As shown, it is worth noting that one end of the slot 5 is closed; in actual operation, the excessive insertion and displacement of the card plate 6 within the slot 5 is avoided by using the slot 5 with one end closed.

[0034] In summary: When installing the fire-resistant duct body 3, the two fire-resistant duct bodies 3 are connected and assembled by using the slot 5 and the clamping plate 6. After the clamping plate 6 is inserted into the slot 5, the set stop component 1 stops and limits the clamping plate 6 inserted into the slot 5, thereby positioning the two fire-resistant duct bodies 3 and completing the rapid assembly of the two fire-resistant duct bodies 3. This eliminates the need to install multiple screws and effectively improves the assembly efficiency of the fire-resistant duct bodies 3. The set locking component 2 locks the two fire-resistant duct bodies 3 together, effectively improving the stability of the splicing of the two fire-resistant duct bodies 3 and tightening the two fire-resistant duct bodies 3. This causes the sealing rubber gasket 7 at the joint end of the two fire-resistant duct bodies 3 to expand elastically, effectively improving the sealing performance of the splicing of the two fire-resistant duct bodies 3 and preventing the problem of smoke leakage from the gap at the joint of the two fire-resistant duct bodies 3.

[0035] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A novel fire-resistant smoke exhaust duct, comprising a fire-resistant duct body (3), characterized in that, A socket (4) is fixed on one end of the fire-resistant duct body (3). A slot (5) is provided inside the socket (4) along the length direction of the socket (4). A card plate (6) that fits into the slot (5) is fixed on the other end of the fire-resistant duct body (3). A stop assembly (1) is provided at one end of the socket (4) to stop and position the card plate (6) inserted into the slot (5). A locking assembly (2) is provided on the socket (4) to lock the card plate (6) inserted into the slot (5).

2. The novel smoke-proof and fire-resistant air duct according to claim 1, characterized in that, The blocking component (1) includes a protrusion (101) fixed at one end of the socket (4), an arc-shaped spring plate (102) is rotatably connected to the protrusion (101), a positioning hole (104) is provided on the side of the clamping plate (6), and a round protrusion that fits into the positioning hole (104) is fixed on the side of the arc-shaped spring plate (102).

3. The novel smoke-proof and fire-resistant air duct according to claim 2, characterized in that, An inclined plate (103) is provided on the arc-shaped spring plate (102).

4. The novel smoke-proof and fire-resistant air duct according to claim 1, characterized in that, A sealing rubber gasket (7) is attached and fixed to one side of the fire-resistant duct body (3).

5. The novel smoke-proof and fire-resistant air duct according to claim 4, characterized in that, The locking assembly (2) includes a threaded hole (202) on the side of the socket (4), and a locking bolt (201) is threadedly connected to the side of the card plate (6), the screw of the locking bolt (201) being threadedly adapted to the threaded hole (202).

6. The novel smoke-proof and fire-resistant air duct according to claim 1, characterized in that, One end of the slot (5) is closed.

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