CN219994771U

CN219994771U - Local reinforced structure of fire prevention tuber pipe

Info

Publication number: CN219994771U
Application number: CN202321636216.8U
Authority: CN
Inventors: 罗景和
Original assignee: Guangzhou Quanfeng Electromechanical Equipment Co ltd
Current assignee: Guangzhou Quanfeng Electromechanical Equipment Co ltd
Priority date: 2023-06-25
Filing date: 2023-06-25
Publication date: 2023-11-10
Anticipated expiration: 2033-06-25

Abstract

The utility model discloses a local reinforcing structure of a fireproof air duct, and relates to the field of fireproof air ducts. The utility model has the effects of avoiding deformation and loss of the fireproof air pipe caused by overlarge local stress, ensuring good performance of the fireproof air pipe and prolonging the service life of the fireproof air pipe.

Description

Local reinforced structure of fire prevention tuber pipe

Technical Field

The utility model relates to the field of fireproof air pipes, in particular to a local reinforcing structure of a fireproof air pipe.

Background

The air pipe is widely applied to various industries and plays a role in exchanging indoor and outdoor air.

In some special use scenarios such as subway stations, the fireproof air duct needs to be lifted and installed, as shown in fig. 1. Traditional fire prevention tuber pipe is established to rectangular type body structure, and this kind of lifting by crane the fire prevention tuber pipe mode causes the local atress of fire prevention tuber pipe too big easily, leads to deformation and the loss of fire prevention tuber pipe.

Disclosure of Invention

In order to strengthen the fireproof air pipe to avoid deformation and loss of the fireproof air pipe caused by overlarge local stress, the utility model provides a local reinforcing structure of the fireproof air pipe.

The utility model provides a local reinforcing structure of a fireproof air duct, which adopts the following technical scheme:

the utility model provides a local reinforced structure of fire prevention tuber pipe, includes the tuber pipe body, the tuber pipe body includes the inner tube and wraps up in the outer tube in the inner tube outside, the inner wall upper berth of outer tube has fire prevention cotton layer one, the lower surface of inner tube has set firmly the stiffening rib.

Preferably, a plurality of notches are formed in the lower surface of the inner tube.

Preferably, the reinforcing rib is fixedly arranged on the outer wall of the inner tube along the outer edge of the notch.

Preferably, the reinforcing rib is a C-shaped channel steel, and the opening of the C-shaped channel steel faces to one side parallel to the lower surface of the inner pipe and faces away from the outer edge of the notch.

Preferably, a second fireproof cotton layer is fixedly paved on the lower surface of the inner tube, and the edge of the second fireproof cotton layer is clamped and embedded in the opening of the C-shaped channel steel.

Preferably, the reinforcing ribs are welded to the inner tube.

Preferably, the notches are arranged in a direction and in a rectangular array.

Preferably, the reinforcing rib comprises a plurality of long ribs which are distributed along the length square of the air pipe body, and the long ribs are positioned at the outer edges of the notches and connect the outer edges of the notches; the reinforcing rib further comprises a plurality of short ribs distributed along the width direction of the air pipe body, and the short ribs are positioned at the outer edge of the notch and fixed between the two long ribs.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the reinforcing ribs are distributed on the lower surface of the inner pipe, so that the local reinforcement of the fireproof air pipe is realized, deformation and loss of the fireproof air pipe caused by overlarge local stress are avoided, the good performance of the fireproof air pipe is ensured, and the service life of the fireproof air pipe is prolonged;

2. the arrangement of the notch reduces the overall weight of the fireproof air pipe, and the C-shaped channel steel is selected as the reinforcing rib, so that the edge of the fireproof cotton layer II is embedded into the C-shaped channel steel, the connection and the positioning between the fireproof cotton layer II and the inner pipe are realized, and the connection stability between the fireproof cotton layer II and the inner pipe is ensured;

3. through rationally laying many long ribs and short rib for the lower surface of fire prevention tuber pipe forms stable fossil fragments structure, has increased the structural strength of fire prevention tuber pipe lower part, thereby avoids the deformation and the loss that fire prevention tuber pipe caused because of local atress is too big.

Drawings

Fig. 1 is a schematic view showing a lifting manner of a fireproof air duct in the background art.

Fig. 2 is a schematic structural view showing a fire-proof duct structure in an embodiment of the present utility model.

Fig. 3 is a schematic cross-sectional view showing a cross-sectional structure of a fire-proof duct according to an embodiment of the present utility model.

Fig. 4 is an enlarged partial schematic view of the portion a in fig. 3.

Fig. 5 is a schematic structural view showing two structures of the reinforcing rib and the fireproof cotton layer.

Fig. 6 is a schematic structural view showing the structure of the reinforcing rib.

Reference numerals illustrate:

1. an inner tube; 11. a top plate; 12. a bottom plate; 121. a notch; 13. a side plate; 2. an outer tube; 3. reinforcing ribs; 31. long ribs; 32. short ribs; 4. a first fireproof cotton layer; 5. and a second fireproof cotton layer.

Detailed Description

The utility model is described in further detail below with reference to fig. 2-6.

Referring to fig. 2 to 4, an embodiment of the utility model discloses a local reinforcing structure of a fireproof air duct, which comprises an air duct body, wherein the air duct body comprises an inner pipe 1 and an outer pipe 2, and the outer pipe 2 is wrapped on the outer side of the inner pipe 1 and is matched with the inner pipe 1.

The inner tube 1 includes a top plate 11, a bottom plate 12, and two side plates 13 fixedly connected between both sides of the top plate 11 and the bottom plate 12.

Referring to fig. 5 and 6, the base plate 12 is provided with a plurality of slots 121, the slots 121 are rectangular, and the plurality of slots 121 are arranged in a rectangular array. In the present embodiment, the number of the notches 121 is set to six.

In order to improve the structural strength of the fireproof air pipe, the reinforcing ribs 3 are welded and fixed on the lower surface of the bottom plate 12.

The reinforcing ribs 3 are arranged along the outer edge of the notch 121, the reinforcing ribs 3 are C-shaped channel steel, and the opening of the C-shaped channel steel faces to one side parallel to the bottom plate 12 and faces away from the outer edge of the notch 121.

The reinforcing rib 3 includes a plurality of long ribs 31 arranged in the length direction of the duct body and short ribs 32 arranged in the width direction of the duct body. The long ribs 31 are located at the outer edges of the notches 121, connect the outer edges of the notches 121 arranged along the length direction of the air duct body, and the short ribs 32 are located at the outer edges of the notches 121 and fixed between two adjacent long ribs 31.

The fireproof cotton layer II 5 is fixedly paved on the lower surface of the bottom plate 12, the fireproof cotton layer II 5 covers the area of the bottom plate 12, which is not provided with the notch 121, the edge of the fireproof cotton layer II 5 is clamped and embedded in the opening of the C-shaped channel steel, the connection positioning between the fireproof cotton layer II 5 and the inner pipe 1 is realized, and the connection stability between the fireproof cotton layer II 5 and the inner pipe 1 is ensured.

Referring to fig. 3 and 4, a first fireproof cotton layer 4 is fixedly laid on the inner wall of the outer tube 2, the first fireproof cotton layer 4 corresponding to the top plate 11 and the side plate 13 of the inner tube 1 is tightly attached to the outer wall of the inner tube 1, and the first fireproof cotton layer 4 corresponding to the bottom plate 12 of the inner tube 1 is abutted to a second fireproof cotton layer 5 and the reinforcing ribs 3. Because the fireproof cotton layers have certain elasticity, even if the edges of the fireproof cotton layers II 5 are embedded into the openings of the reinforcing ribs 3, the abutting connection of the fireproof cotton layers I4 and II 5 can be realized.

The implementation principle of the local reinforcing structure of the fireproof air duct provided by the embodiment of the utility model is as follows:

through lay stiffening rib 3 at the lower surface of inner tube 1 for the lower surface of fire prevention tuber pipe forms stable fossil fragments structure, has realized the local reinforcement to the fire prevention tuber pipe, avoids the deformation and the loss that the fire prevention tuber pipe caused because of local atress is too big, has ensured the good performance of fire prevention tuber pipe, has prolonged the life of fire prevention tuber pipe.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a local reinforced structure of fire prevention tuber pipe, includes tuber pipe body, its characterized in that: the air duct body comprises an inner tube (1) and an outer tube (2) wrapped outside the inner tube (1), a fireproof cotton layer I (4) is paved on the inner wall of the outer tube (2), and reinforcing ribs (3) are fixedly arranged on the lower surface of the inner tube (1).

2. A local reinforcing structure for a fire-resistant ductwork as set forth in claim 1, wherein: a plurality of notches (121) are formed in the lower surface of the inner tube (1).

3. A local reinforcing structure for a fire-resistant ductwork as set forth in claim 2, wherein: the reinforcing ribs (3) are fixedly arranged on the outer wall of the inner tube (1) along the outer edge of the notch (121).

4. A local reinforcing structure for a fire-resistant ductwork as set forth in claim 3, wherein: the reinforcing rib (3) is a C-shaped channel steel, and the opening of the C-shaped channel steel faces to one side parallel to the lower surface of the inner pipe (1) and is away from the outer edge of the notch (121).

5. The local reinforcing structure for a fire-resistant ductwork of claim 4, wherein: and a second fireproof cotton layer (5) is fixedly paved on the lower surface of the inner pipe (1), and the edge of the second fireproof cotton layer (5) is clamped and embedded in the opening of the C-shaped channel steel.

6. A local reinforcing structure for a fire-resistant ductwork as set forth in claim 1, wherein: the reinforcing ribs (3) are fixed on the inner tube (1) in a welding way.

7. A local reinforcing structure for a fire-resistant ductwork as set forth in claim 3, wherein: the notches (121) are arranged in a direction and in a rectangular array.

8. The local reinforcing structure for a fire-resistant ductwork of claim 7, wherein: the reinforcing rib (3) comprises a plurality of long ribs (31) which are distributed along the length square of the air pipe body, and the long ribs (31) are positioned at the outer edges of the notches (121) and connect the outer edges of the notches (121); the reinforcing rib (3) further comprises a plurality of short ribs (32) which are distributed along the width direction of the air pipe body, and the short ribs (32) are positioned at the outer edge of the notch (121) and are fixed between the two long ribs (31).