Multi-section smoke exhaust duct

Abstract

The utility model provides a multi -section type prevents and arranges smoke air pipe, including galvanized air pipe, the both ends of galvanized air pipe are installed and air pipe fixed end board no.

Description

Technical Field

[0001] This utility model belongs to the field of smoke exhaust ducts, specifically a multi-section smoke exhaust duct. Background Technology

[0002] During building use, smoke exhaust ducts are generally installed at various ventilation openings. They are a type of fire safety pipeline. The first pipe of the smoke exhaust duct extends outward, and it plays the role of exhausting smoke and ventilation. By compressing the air in a specific environment, it can remove indoor smoke and harmful gases. In the event of a fire, it can effectively ensure the safety of people and property both indoors and outdoors.

[0003] Smoke control systems are used to prevent smoke from escaping outdoors during a fire, or to maintain positive pressure in certain areas to prevent smoke from spreading back into the building, thus providing occupants with time to evacuate. The quality of the smoke control system's installation is directly related to public safety. A crucial aspect of a good smoke control system is the installation and connection of the ductwork. Ductwork installation that meets specifications ensures the smooth removal of smoke during a fire and the efficient introduction of outside smoke into areas requiring positive pressure. Therefore, the installation, setup, and connection of the ductwork are extremely important.

[0004] However, because its fireproof board is fastened with screws and lacks an efficient thermal insulation connection structure, the installation efficiency of the thermal insulation structure is low and it is easy to fall off. In addition, the lack of an accurate positioning structure for adjacent air ducts makes it more troublesome to connect adjacent air ducts.

[0005] In summary, this utility model provides a multi-section smoke exhaust duct to solve the above problems. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a multi-segment smoke exhaust duct to solve the problem that the lack of accurate positioning structure for adjacent ducts in the prior art leads to difficulties in connecting adjacent ducts.

[0007] A multi-section smoke exhaust duct includes a galvanized duct. Two duct fixing end plates are installed at both ends of the galvanized duct. One side of the first duct fixing end plate has a locking groove. The second duct fixing end plate has two locking slots. Each locking slot contains an elastic locking element, including a locking main rod. One end of the locking main rod is rotatably connected to the locking slot via a pivot. One side of the locking main rod has a locking protrusion, and the other side has a spring clip groove. The locking slots penetrate both sides of the second duct fixing end plate. One side of the locking slot is covered with a protective cover, which is installed on the surface of the second duct fixing end plate. The spring clip groove and the locking slot are connected by a spring clip. A limit clamp is installed on one side of the first duct fixing end plate.

[0008] Furthermore, the slots are equally spaced along one side of the duct fixing end plate, and are respectively located at both ends of the duct fixing end plate. The slots are matched with the slot protrusions.

[0009] Furthermore, a stop lug is installed at the end of the main rod of the clamp away from the rotating shaft. The stop lug passes through the inner groove of the clamp and is set on the surface of the duct fixing end plate.

[0010] Furthermore, the slot is a triangular inner groove, and the slot is movably engaged with the protrusion. The protrusion is inserted into the slot, and the side of the protrusion near the rotating shaft is a slope.

[0011] Furthermore, the protective cover has open structures at both ends, and the stop lug passes through one end opening of the protective cover and extends to the outside.

[0012] Furthermore, a limiting end plate is installed at the bottom of the duct fixing end plate, and the limiting end plate is disposed between two sets of clamping slots.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model uses elastic clips to assemble two fixed end plates of the air ducts, and limits the position of the clips. The bottom is blocked by the limiting end plate, thereby achieving restriction in multiple directions. The assembly of the two smoke exhaust air ducts can be achieved simply by limiting the movement between the elastic clips and the clip slots.

[0015] 2. This utility model uses a spring-loaded control clip to control the main rod of the clamp. If the rotation of the main rod is restricted, only unidirectional movement of the smoke exhaust duct can be achieved. However, by setting an operable stop lug, external force can be applied to control the position of the main rod of the clamp, thereby achieving bidirectional movement, which allows for the installation and disassembly of the smoke exhaust duct. Attached Figure Description

[0016] Figure 1 This is a three-dimensional assembly view of the present invention;

[0017] Figure 2 This is a perspective view of the utility model;

[0018] Figure 3 This is a perspective view of the elastic card component of this utility model;

[0019] Figure 4 This is a three-dimensional view of the fixed end plate of the air duct of this utility model.

[0020] In the picture:

[0021] 1. Galvanized air duct;

[0022] 2. One fixed end plate for the air duct;

[0023] 3. Duct fixing end plate two;

[0024] 4. Limiting end plate;

[0025] 5. Elastic locking element; 501. Locking element main rod; 502. Locking element protrusion; 503. Stopping lug; 504. Spring slot;

[0026] 6. Card slot;

[0027] 7. Shaft;

[0028] 8. Shrapnel;

[0029] 9. Protective cover;

[0030] 10. Inner slot of the card slot. Detailed Implementation

[0031] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0032] like Figures 1-4As shown, this utility model provides a multi-segment smoke exhaust duct, including a galvanized duct 1. A duct fixing end plate 1 (first) and a duct fixing end plate 2 (second) are installed at both ends of the galvanized duct 1. A clamping groove 6 is provided on one side of the duct fixing end plate 1 (first). Two clamping inner grooves 10 are provided on the duct fixing end plate 2 (second). An elastic clamping element 5 is provided within each clamping inner groove 10. The elastic clamping element 5 includes a clamping main rod 501. One end of the clamping main rod 501 is rotatably connected to the clamping inner groove 10 via a rotating shaft 7. A clamping protrusion 502 is installed on one side of the clamping main rod 501. A spring clip groove 504 is provided on the other side of the clamping main rod 501. The clamping inner groove 10 penetrates both sides of the duct fixing end plate 2 (second). A protective cover 9 is covered on one side of the clamping inner groove 10. The protective cover 9 is installed on the surface of the duct fixing end plate 2 (second). The spring clip groove 504 is connected to the clamping inner groove 10 via a spring clip 8. A limit clamping element is installed on one side of the duct fixing end plate 1 (first).

[0033] As one embodiment of this utility model, the clamping slots 6 are arranged at equal distances along one side of the duct fixing end plate 2, and the clamping slots 6 are respectively arranged at both ends of the duct fixing end plate 2. The clamping slots 6 are matched with the clamping protrusions 502.

[0034] As one embodiment of this utility model, a stop ear block 503 is installed at the end of the main rod 501 away from the rotating shaft 7. The stop ear block 503 passes through the inner groove 10 of the card slot and is set on the surface of the duct fixing end plate 2.

[0035] In one embodiment of this utility model, the card slot 6 is a triangular inner groove, and the card slot 6 is movably engaged with the card protrusion 502. The card protrusion 502 is inserted into the card slot 6, and the side of the card protrusion 502 near the rotating shaft 7 is a slope.

[0036] As one embodiment of this utility model, the protective cover 9 has open structures at both ends, and the stop ear block 503 passes through one end opening of the protective cover 9 and extends to the outside.

[0037] As one embodiment of this utility model, a limiting end plate 4 is installed at the bottom of the duct fixing end plate 2, and the limiting end plate 4 is disposed between two sets of clamping slots 6.

[0038] Specific working principle:

[0039] Two galvanized air ducts 1 have their air duct fixing end plates 1 and 2 and 3 close to each other. The air duct fixing end plate 1 is aligned with the air duct fixing end plate 2. From top to bottom, the air duct fixing end plate 2 is inserted into the limiting clip. When the air duct fixing end plate 2 moves to the surface of the limiting end plate 4 and is restricted by the limiting end plate 4, it stops moving down and the fixing is completed.

[0040] The limiting clip has an L-shaped structure, which restricts the movement of the fixed end plate 23 of the air duct;

[0041] During the downward movement, the elastic clip 5 retracts and slides in the clip groove 6;

[0042] The locking protrusion 502 is inserted into the locking slot 6, and the spring piece 8 presses the locking main rod 501, so that the locking protrusion 502 is always inserted into the locking slot 6, restricting its upward movement.

[0043] During disassembly, move the stop ear block 503. The stop ear block 503 rotates along the rotating shaft 7. The stop ear block 503 drives the locking protrusion 502 away from the locking groove 6, and can then move upward.

[0044] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. A multi-section smoke exhaust duct, comprising a galvanized duct (1), wherein a duct fixing end plate one (2) and a duct fixing end plate two (3) are installed at both ends of the galvanized duct (1), characterized in that: One side of the duct fixing end plate 1 (2) is provided with a clamping groove (6), and the duct fixing end plate 2 (3) is provided with two clamping inner grooves (10). An elastic clamp (5) is provided in the clamping inner groove (10). The elastic clamp (5) includes a clamping main rod (501). One end of the clamping main rod (501) is rotatably connected to the clamping inner groove (10) through a rotating shaft (7). A clamping protrusion (502) is installed on one side of the clamping main rod (501). The other side of the main rod (501) of the card is provided with a spring slot (504). The inner slot (10) of the card slot penetrates both sides of the second duct fixing plate (3). One side of the inner slot (10) of the card slot is covered with a protective cover (9). The protective cover (9) is installed on the surface of the second duct fixing plate (3). The spring slot (504) and the inner slot (10) of the card slot are connected by a spring (8). A limit card is installed on one side of the first duct fixing plate (2).

2. The multi-section smoke exhaust duct as described in claim 1, characterized in that: The slots (6) are provided at equal distances along one side of the duct fixing end plate (2). The slots (6) are provided at both ends of the duct fixing end plate (2). The slots (6) are matched with the slot protrusions (502).

3. The multi-section smoke exhaust duct as described in claim 1, characterized in that: The main rod (501) of the card is equipped with a stop ear block (503) at the end away from the rotating shaft (7). The stop ear block (503) passes through the inner groove (10) of the card and is set on the surface of the air duct fixed end plate (2).

4. The multi-section smoke exhaust duct as described in claim 1, characterized in that: The slot (6) is a triangular inner groove. The slot (6) is movably engaged with the protrusion (502). The protrusion (502) is inserted into the slot (6). The side of the protrusion (502) near the rotating shaft (7) is a slope.

5. The multi-section smoke exhaust duct as described in claim 3, characterized in that: The protective cover (9) has open structures at both ends. The stop ear block (503) passes through one end opening of the protective cover (9) and extends to the outside.

6. The multi-section smoke exhaust duct as described in claim 1, characterized in that: A limiting end plate (4) is installed at the bottom of the duct fixing end plate (2), and the limiting end plate (4) is set between two sets of clamping slots (6).

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