Smoke exhaust duct structure

Abstract

The utility model provides a kind of smoke exhaust air pipe structure, including smoke exhaust air pipe, the both ends of the smoke exhaust air pipe are respectively equipped with air pipe seat one and air pipe seat two, the both sides of the air pipe seat one are respectively provided with buckle slot, the corresponding both sides of the air pipe seat two are respectively equipped with buckle seat, buckle sleeve is sleeved on the buckle seat, buckle sleeve is connected on buckle seat by positioning column, one end of the positioning column is movably penetrated buckle sleeve, and is fixedly connected on buckle seat, the surface of the positioning column movably winds recovery spring;The utility model is positioned by setting positioning column, buckle sleeve is elastically compressed using recovery spring, then sliding groove that limits the active space of buckle sleeve is additionally provided, when buckle sleeve plays the installation effect to smoke exhaust air pipe, it will not separate from entire air pipe seat two, and by setting the buckle slot of inclined plane, when assembling, the structure of inclined plane can be connected more closely to the clamping of smoke exhaust air pipe connection, prevent the situation that flue gas leaks.

Description

Technical Field

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

[0002] Smoke exhaust ducts are primarily used in fire-fighting smoke exhaust systems, possessing excellent fire resistance and high-temperature resistance. These ducts utilize a fiberglass core, are white-gray in color, meet quality standards, and can operate at temperatures up to 600℃, with a fire resistance range of 1770-2000℃. All mechanical strength indicators, such as bending, tensile, compressive, and tear strength, meet national standards. Custom processing is available, and they are suitable for various fire-resistant facilities, equipment, and indoor applications.

[0003] Smoke exhaust ducts are pipes within buildings used to remove smoke and heat generated during a fire, and are an important component of the fire protection system. They not only effectively control the speed of fire spread and protect lives, but also effectively remove smoke and heat generated at the fire scene, reducing the degree of damage to the building.

[0004] During a fire, the dense smoke produced is one of the most dangerous substances, causing serious harm to the human body. Therefore, if the smoke exhaust duct is not properly sealed, smoke will leak out of the pipes, affecting the smoke extraction effect of the fire protection system. This not only accelerates the spread of the fire but may also cause smoke to accumulate inside the building, increasing the risk of casualties.

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

[0006] To address the aforementioned technical problems, this utility model provides a smoke exhaust duct structure to solve the problem that smoke leaks out of the duct in the prior art, affecting the smoke exhaust effect of the fire protection system.

[0007] A smoke-proof exhaust duct structure includes a smoke-proof exhaust duct, with a duct seat 1 and a duct seat 2 installed at both ends of the smoke-proof exhaust duct, respectively. The duct seat 1 has snap-fit ​​grooves on both sides, and the duct seat 2 has snap-fit ​​seats on the corresponding sides. A snap-fit ​​sleeve is fitted onto each snap-fit ​​seat, and the snap-fit ​​sleeve is connected to the snap-fit ​​seat via a positioning post. One end of the positioning post movably passes through the snap-fit ​​sleeve and is fixedly connected to the snap-fit ​​seat. A restoring spring is movably wound around the surface of the positioning post, and the restoring spring is located on the side of the snap-fit ​​sleeve away from the duct seat 2. Two protruding sliding strips are installed on the side of the duct seat 2 opposite to the smoke-proof exhaust duct, and two corresponding concave sliding grooves are opened on the side of the duct seat 1 opposite to the smoke-proof exhaust duct.

[0008] Furthermore, the buckle groove and the buckle seat are provided in a one-to-one correspondence, and the buckle groove is an inclined groove.

[0009] Furthermore, the buckle seat has an "L" shaped structure, with one end of the buckle seat installed on the side wall of the second duct seat, and the buckle sleeve fitted onto the end of the buckle seat away from the second duct seat, and arranged parallel to the second duct seat.

[0010] Furthermore, the buckle sleeve has an opening in the middle, and the buckle seat passes through the opening in the middle of the buckle sleeve. One side of the buckle sleeve is close to the second duct seat, and the other side is perpendicular to the positioning post. The buckle sleeve has a buffer groove. One end of the positioning post is movably sleeved with a gasket, which passes through the buffer groove and is fixedly connected to the buckle seat. The return spring is set on the surface of the gasket, and the gasket covers the surface of the buffer groove.

[0011] Furthermore, two sliding grooves are provided on the side of the buckle seat away from the second duct seat, and the buckle sleeve is in contact with the sliding grooves.

[0012] Furthermore, the side of the buckle sleeve closest to the duct seat is beveled and matched with the buckle groove.

[0013] Furthermore, the convex sliding strip and the buckle seat are located at the same end of the second duct seat, and the convex sliding strip is arranged along the length direction of the second duct seat.

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

[0015] 1. This utility model, by setting a matching convex sliding strip and a concave sliding groove, can restrict the two ends of the smoke exhaust duct, ensuring that the two smoke exhaust ducts can be stably connected and the air outlets are aligned. By setting a buckle seat and a buckle sleeve, the movement of the smoke exhaust duct is restricted from two other directions when the two smoke exhaust ducts are connected. Thus, the smoke exhaust duct is restricted in four directions to prevent it from separating.

[0016] 2. This utility model sets a positioning post, uses a restoring spring to compress the buckle sleeve, and sets a sliding groove to limit the movement space of the buckle sleeve. When the buckle sleeve plays a role in installing the smoke exhaust duct, it will not detach from the entire duct seat. By setting a buckle groove with an inclined surface, the connection of the smoke exhaust duct can be more tightly locked during assembly according to the inclined surface structure, preventing smoke leakage. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the assembly of two smoke exhaust ducts of this utility model;

[0018] Figure 2 This is a perspective view of the utility model;

[0019] Figure 3 This is a three-dimensional view of the duct seat of this utility model;

[0020] Figure 4 This is a two-dimensional view of the duct support of this utility model.

[0021] In the picture:

[0022] 1. Smoke exhaust duct; 2. Duct seat one; 3. Duct seat two; 4. Clip seat; 5. Clip sleeve; 6. Recessed slide groove; 7. Protruding slide bar; 8. Clip groove; 9. Soft groove; 10. Gasket; 11. Return spring; 12. Positioning post. Detailed Implementation

[0023] 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.

[0024] like Figures 1-4 As shown, this utility model provides a smoke exhaust duct structure, including a smoke exhaust duct 1. Duct seat 1 2 and duct seat 2 3 are respectively installed at both ends of the smoke exhaust duct 1. Clip grooves 8 are respectively opened on both sides of duct seat 1 2. Clip seats 4 are respectively installed on the corresponding sides of duct seat 2 3. Clip sleeves 5 are fitted onto clip seats 4. Clip sleeves 5 are connected to clip seats 4 via positioning posts 12. One end of the positioning post 12 movably passes through the clip sleeve 5 and is fixedly connected to the clip seat 4. A restoring spring 11 is movably wound around the surface of the positioning post 12. The restoring spring 11 is located on the side of the clip sleeve 5 away from duct seat 2 3. Two protruding sliding strips 7 are installed on the side of duct seat 2 3 opposite to the smoke exhaust duct 1. Two corresponding concave sliding grooves 6 are opened on the side of duct seat 1 2 opposite to the smoke exhaust duct 1.

[0025] As one embodiment of this utility model, the buckle groove 8 and the buckle seat 4 are provided in a one-to-one correspondence, and the buckle groove 8 is an inclined groove.

[0026] The inclined structure matches the buckle sleeve 5. When the buckle sleeve 5 is inserted into the buckle groove 8, it can squeeze the buckle groove 8, thereby squeezing the duct seat 1 2 and the duct seat 2 3.

[0027] As one embodiment of this utility model, the buckle seat 4 has an "L" shaped structure. One end of the buckle seat 4 is installed on the side wall of the second duct seat 3, and the buckle sleeve 5 is sleeved on the end of the buckle seat 4 away from the second duct seat 3 and is arranged parallel to the second duct seat 3.

[0028] As one embodiment of this utility model, the buckle sleeve 5 has an opening in the middle, and the buckle seat 4 passes through the opening in the middle of the buckle sleeve 5. One side of the buckle sleeve 5 is close to the duct seat 2 3, and the other side is perpendicular to the positioning post 12. The buckle sleeve 5 has a buffer groove 9. One end of the positioning post 12 is movably sleeved with a gasket 10, which passes through the buffer groove 9 and is fixedly connected to the buckle seat 4. The return spring 11 is set on the surface of the gasket 10, and the gasket 10 covers the surface of the buffer groove 9.

[0029] The spring 11 is compressed on the surface of the snap sleeve 5, squeezing the snap sleeve 5 so that the snap sleeve 5 is close to the duct seat 2 3. During installation, the snap sleeve 5 is pulled away from the duct seat 2 3.

[0030] As one embodiment of this utility model, two sliding grooves are provided on the side of the buckle seat 4 away from the air duct seat 3, and the buckle sleeve 5 is in contact with the sliding grooves.

[0031] As one embodiment of this utility model, the side of the buckle sleeve 5 near the duct seat 2 3 is inclined and is matched with the buckle groove 8.

[0032] As one embodiment of this utility model, the protruding slide bar 7 and the buckle seat 4 are disposed at the same end of the duct seat 2 3, and the protruding slide bar 7 is disposed along the length direction of the duct seat 2 3.

[0033] The convex slider 7 is inserted into the concave slider 6, and the convex slider 7 is fully inserted into the concave slider 6, aligned with the concave slider 6.

[0034] Specific working principle:

[0035] Align the two smoke exhaust ducts 1, so that duct seat 1 2 and duct seat 2 3 are close to each other. Insert the convex slide bar 7 into one end of the concave slide groove 6, and then insert the convex slide bar 7 into the concave slide groove 6. Then, duct seat 1 2 and duct seat 2 3 fit together. After moving to the position where the buckle sleeve 5 and the buckle groove 8 are aligned, pull the buckle sleeve 5. The buckle sleeve 5 is inserted into the buckle groove 8 and aligned with the buckle groove 8. The buckle sleeve 5 contacts the inclined surface of the buckle groove 8. By the return spring 11, the buckle sleeve 5 is squeezed. The surface of the buckle sleeve 5 buckle seat 4 slides and is then snapped onto the surface of duct seat 1 2, limiting the distance between duct seat 1 2 and duct seat 2 3.

[0036] When the snap-fit ​​sleeve 5 moves, the positioning post 12 is restricted in position. Therefore, the snap-fit ​​sleeve 5 can move within a small range in the buffer groove 9, squeezing the position between the duct seat 1 2 and the duct seat 2 3.

[0037] 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 smoke exhaust air duct structure comprising a smoke exhaust air duct (1), a first air duct base (2) and a second air duct base (3) are respectively arranged at two ends of the smoke exhaust air duct (1), characterized in that: The first duct seat (2) has a buckle groove (8) on each side. The second duct seat (3) has a buckle seat (4) on each side. The buckle seat (4) is fitted with a buckle sleeve (5). The buckle sleeve (5) is connected to the buckle seat (4) by a positioning post (12). One end of the positioning post (12) passes through the buckle sleeve (5) and is fixedly connected to the buckle seat (4). A restoring spring (11) is movably wound on the surface of the positioning post (12). The restoring spring (11) is set on the side of the buckle sleeve (5) away from the second duct seat (3). The second duct seat (3) has two protruding sliding strips (7) installed on the side opposite to the smoke exhaust duct (1). The first duct seat (2) has two corresponding concave sliding grooves (6) on the side opposite to the smoke exhaust duct (1).

2. The structure of the smoke exhaust duct according to claim 1, wherein: The buckle groove (8) and the buckle seat (4) are provided in a one-to-one correspondence, and the buckle groove (8) is an inclined groove.

3. The smoke exhaust duct structure as described in claim 1, characterized in that: The buckle seat (4) has an "L" shaped structure. One end of the buckle seat (4) is installed on the side wall of the second air duct seat (3). The buckle sleeve (5) is sleeved on the buckle seat (4) at the end away from the second air duct seat (3) and is set parallel to the second air duct seat (3).

4. The smoke exhaust duct structure as described in claim 1, characterized in that: The buckle sleeve (5) has an opening in the middle, and the buckle seat (4) passes through the opening in the middle of the buckle sleeve (5). One side of the buckle sleeve (5) is close to the second air duct seat (3), and the other side is perpendicular to the positioning post (12). The buckle sleeve (5) has a buffer groove (9). One end of the positioning post (12) is movably sleeved with a gasket (10), which passes through the buffer groove (9) and is fixedly connected to the buckle seat (4). The return spring (11) is set on the surface of the gasket (10), and the gasket (10) covers the surface of the buffer groove (9).

5. The smoke exhaust duct structure as described in claim 1, characterized in that: Two sliding grooves are provided on the side of the buckle seat (4) away from the air duct seat (3), and the buckle sleeve (5) is in contact with the sliding grooves.

6. The smoke exhaust duct structure as described in claim 1, characterized in that: The side of the buckle sleeve (5) near the duct seat (3) is beveled and matched with the buckle groove (8).

7. The smoke exhaust duct structure as described in claim 1, characterized in that: The convex slide bar (7) and the buckle seat (4) are located at the same end of the duct seat (3), and the convex slide bar (7) is arranged along the length direction of the duct seat (3).

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