Fabricated fireproof ventilating duct

Abstract

The utility model discloses an assembly type fireproof ventilating duct, which comprises fireproof veneers and angle steel flanges, one side of each fireproof veneer is provided with an inserting groove, a plurality of fireproof veneers are spliced end to end through the inserting grooves to form the ventilating duct, the angle steel flanges are sleeved at the port of the ventilating duct, and the angle steel flanges are fixedly connected with the ventilating duct through screws. Compared with the prior art, the fireproof door is good in fireproof performance, convenient to transport, easy to assemble and capable of being secondarily assembled and utilized.

Description

Technical Field

[0001] The utility model belongs to the field of ventilation, and particularly relates to an assembled fireproof ventilation duct. Background Art

[0002] The ventilation duct, abbreviated as air duct, is a metal or non-metal duct used in the ventilation and air conditioning projects of industrial and civil buildings. It is mainly used to make air circulate and reduce the concentration of harmful gases. It is an important municipal infrastructure. According to the cross-sectional shape, the air duct can be divided into various types such as circular air duct, rectangular air duct, and flat circular air duct. Among them, the circular air duct has the smallest resistance but the largest height dimension and is complex to manufacture, so the rectangular air duct is mainly used in applications. And according to different materials, the air duct can be divided into metal air duct, composite air duct, and polymer air duct. Due to the popularization problem, the metal air duct is the common air duct. At present, the air duct is mainly sold in the form of plates, and the plates need to be transported to the construction site for manufacturing and processing. This method has problems such as large construction difficulty, long construction period, and non-standard manufacturing, which greatly increases the construction cost.

[0003] In view of the above problems, the patent document CN2023216060558 discloses a highly corrosion-resistant assembled fireproof composite air duct, which includes a duct body and metal flanges at both ends of the duct body. The duct body is composed of an inner and outer steel plate layer and a middle fireproof insulation layer. This solution can effectively improve the construction efficiency and reduce the construction cost by assembling the duct body and the metal flanges in the factory and then directly transporting them to the construction site for the assembly of the air duct system. Moreover, the duct body is sandwiched with a fireproof insulation layer, having good fireproof performance. However, there are some problems in the actual use of this solution: Since it is assembled into a product in the factory, the overall space occupied by the air duct is large and it is inconvenient to transport; the duct body is designed with an integral structure. After local damage, the whole needs to be replaced, and it is not convenient for subsequent secondary assembly and utilization. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the problems in the transportation, assembly, etc. of the existing air ducts, and provide an assembled fireproof ventilation duct with good fireproof performance, convenient transportation, easy assembly, and capable of secondary assembly and utilization.

[0005] The technical solution adopted by the utility model to solve its technical problems: The assembled fireproof ventilation duct includes a fireproof single board and an angle steel flange. One side of the fireproof single board is provided with a plug-in slot. Several fireproof single boards are spliced end to end through the plug-in slot to form a ventilation duct. The angle steel flange is sleeved at the port of the ventilation duct, and the angle steel flange and the ventilation duct are fixedly connected by screws.

[0006] Optionally, the joint of the ventilation duct is filled with fireproof glue.

[0007] Optionally, multiple screws are provided at the splicing position of adjacent fireproof single boards, and adjacent fireproof single boards are fixedly connected by screws.

[0008] Optionally, the plurality of fireproof single plates are spliced ​​end to end through the plug-in slots to form a ventilation duct with a rectangular port cross-section, the ventilation duct is "I"-shaped, and the ventilation duct is two-way.

[0009] Optionally, the plurality of fireproof single plates are spliced ​​end to end through the plug-in grooves to form a ventilation duct with a rectangular port cross-section, the ventilation duct is in an "L" shape with a chamfer, and the ventilation duct is an elbow.

[0010] Optionally, the plurality of fireproof single plates are spliced ​​end to end through the plug-in slots to form a ventilation duct with a rectangular port cross-section, the ventilation duct is "T"-shaped, and the ventilation duct is a tee.

[0011] Optionally, the plurality of fireproof single plates are spliced ​​end to end through the plug-in slots to form a ventilation duct with a rectangular port cross-section, the ventilation duct is in a "cross" shape, and the ventilation duct is four-way.

[0012] Optionally, a plurality of support screws are vertically passed through the ventilation duct, an outer gasket and an inner gasket are sleeved on the support screws, the outer gasket and the inner gasket are threadedly connected to the support screws, and the support screws are fixedly connected to the ventilation duct through the outer gasket and the inner gasket.

[0013] Optionally, the fireproof single panel is composed of an outer panel and an inner panel, the long side of the outer panel is consistent with the long side of the inner panel, the wide side of the outer panel is larger than the wide side of the inner panel, "L"-shaped retaining plates are provided at the left and right long sides of the inner panel, and connecting plates with a "U"-shaped cross-section are fixed at the front and rear wide sides of the outer panel. The inner panel is buckled with the outer panel through the retaining plate and the connecting plate, the inner panel is fixedly connected to the connecting plate, a fireproof interlayer is provided between the outer panel and the inner panel, a limiting plate I is provided on the long side of one side of the outer panel, and the limiting plate I limits the retaining plate, and a limiting plate II is provided on the long side of the other side of the outer panel, and the plug-in groove is the groove formed between the limiting plate II and the retaining plate.

[0014] Optionally, the joints of the fireproof single board are filled with fireproof glue.

[0015] The usage of the utility model is as follows: according to customer needs, the fireproof single board is manufactured in the factory, and then the fireproof single board and the angle steel flange are transported to the construction site, and assembled into sections of ventilation ducts that are easy to install using simple tools such as hammers and electric wrenches, and these ventilation ducts are assembled together to quickly construct an air duct system.

[0016] Principle of the utility model: Since the ventilation duct is not prefabricated in the factory, it only needs to transport the fireproof veneer and angle steel flange to the construction site. The fireproof veneer and angle steel flange do not take up much space, so the overall transportation is very convenient. The ventilation duct is assembled by the fireproof veneer, which has good fireproof performance. The fireproof veneer can be quickly assembled into a ventilation duct through the insertion slots, and then the angle steel flange is sleeved and fixed with screws. The whole assembly process is very simple, and it is also easy to disassemble it into the fireproof veneer and angle steel flange later, so that it can be assembled and used for the second time.

[0017] Compared with the prior art, the utility model has at least the following beneficial effects: The utility model has good fireproof performance, convenient transportation, easy assembly, and can be assembled and used for the second time. Description of the drawings

[0018] Figure 1 It is a front view structural schematic diagram of the utility model;

[0019] Figure 2 It is a cross-sectional structural schematic diagram of the fireproof veneer of the utility model;

[0020] The reference numerals in the drawings are as follows: fireproof veneer 1, angle steel flange 2, insertion slot 3, ventilation duct 4, support screw 5, outer plate 11, inner plate 12, clamping plate 13, connecting plate 14, fireproof interlayer 15, limiting plate I 16, limiting plate II 17. Detailed implementation manners

[0021] Example 1, the following is further described in conjunction with Figure 1-2 the utility model. The assembled fireproof ventilation duct includes a fireproof veneer 1 and an angle steel flange 2. The fireproof veneer is made of stainless steel plate, galvanized plate, etc. with a fireproof interlayer. One side of the fireproof veneer is provided with an insertion slot 3. Several fireproof veneers are spliced end to end through the insertion slots to form a ventilation duct 4. The angle steel flange is sleeved at the port of the ventilation duct, and the angle steel flange and the ventilation duct are fixedly connected by screws.

[0022] In order to make the connection between the fireproof veneers more stable, multiple screws are provided at the splicing position of adjacent fireproof veneers, and the adjacent fireproof veneers are fixedly connected by screws.

[0023] In order to facilitate the installation of the air duct system to meet the need of a two-way connection, several fireproof veneers are spliced end to end through the insertion slots to form a ventilation duct with a rectangular cross-section at the port. The ventilation duct is in an "I" shape, and the ventilation duct is a two-way connection.

[0024] In order to facilitate the installation of the air duct system to meet the need of an elbow, several fireproof veneers are spliced end to end through the insertion slots to form a ventilation duct with a rectangular cross-section at the port. The ventilation duct is in an "L" shape with chamfers, and the ventilation duct is an elbow.

[0025] In order to facilitate the adaptation to the need of the tee for the installation of the air duct system, several fireproof single plates are spliced end to end through the insertion slots to form a ventilation duct with a rectangular cross-section at the port. The ventilation duct is in a "T" shape, and the ventilation duct is a tee.

[0026] In order to facilitate the adaptation to the need of the cross for the installation of the air duct system, several fireproof single plates are spliced end to end through the insertion slots to form a ventilation duct with a rectangular cross-section at the port. The ventilation duct is in a "plus" shape, and the ventilation duct is a cross.

[0027] In order to improve the strength of the ventilation duct, several support screws 5 penetrate vertically through the ventilation duct. An outer gasket and an inner gasket are sleeved on the support screw. The outer gasket and the inner gasket are threadedly connected to the support screw. The support screw is fixedly connected to the ventilation duct through the outer gasket and the inner gasket.

[0028] In order to facilitate the production of the fireproof single plate in the factory, the fireproof single plate is composed of an outer plate 11 and an inner plate 12. The outer plate and the inner plate are thin plates made of galvanized materials. The long side of the outer plate is the same as the long side of the inner plate. The wide side of the outer plate is larger than the wide side of the inner plate. "L"-shaped clamping plates 13 are provided at the left and right long sides of the inner plate. The clamping plates are bent from the left and right long sides of the inner plate. At the front and rear wide sides of the outer plate, a connecting plate 14 with a "U" cross-section is fixedly connected by welding. The inner plate is buckled to the outer plate through the clamping plate and the connecting plate. The inner plate and the connecting plate are fixedly connected by dovetail screws. A fireproof interlayer 15 is provided between the outer plate and the inner plate. The fireproof interlayer uses fireproof cotton. The fireproof cotton is filled between the outer plate and the inner plate. The fireproof cotton is fixed by the fireproof glue smeared on the outer plate. A limiting plate Ⅰ 16 is provided on one long side of the outer plate. The limiting plate Ⅰ is bent by knocking on one long side of the outer plate and is bent when limiting is needed. The limiting plate Ⅰ limits the clamping plate. A limiting plate Ⅱ 17 is provided on the other long side of the outer plate. The limiting plate Ⅱ is bent by knocking on the other long side of the outer plate. The insertion slot is the slot formed between the limiting plate Ⅱ and the clamping plate.

[0029] In order to improve the overall moisture-proof performance of the ventilation duct, fireproof glue is filled at the joints of the ventilation duct and the joints of the fireproof single plates.

[0030] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. Prefabricated fireproof ventilation duct, comprising a fireproof single board (1) and an angle steel flange (2), characterized in that: A plug-in slot (3) is provided on one side of the fireproof single board, and a plurality of fireproof single boards are spliced ​​end to end through the plug-in slot to form a ventilation duct (4). The angle steel flange is sleeved at the port of the ventilation duct, and the angle steel flange is fixedly connected to the ventilation duct by screws.

2. The prefabricated fireproof ventilation duct according to claim 1, characterized in that: The joints of the ventilation ducts are filled with fireproof glue.

3. The prefabricated fireproof ventilation duct according to claim 1, characterized in that: A plurality of screws are arranged at the joints of adjacent fireproof single boards, and adjacent fireproof single boards are fixedly connected by the screws.

4. The prefabricated fireproof ventilation duct according to claim 1, wherein: Several fireproof single plates are spliced ​​end to end through the plug-in grooves to form a ventilation duct with a rectangular port cross-section. The ventilation duct is "I"-shaped and has two passages.

5. The prefabricated fireproof ventilation duct according to claim 1, wherein: Several fireproof single plates are spliced ​​end to end through the plug-in grooves to form a ventilation duct with a rectangular port cross-section. The ventilation duct is in an "L" shape with a chamfer, and the ventilation duct is an elbow.

6. The prefabricated fireproof ventilation duct according to claim 1, wherein: Several fireproof single plates are spliced ​​end to end through the plug-in grooves to form a ventilation duct with a rectangular port cross-section. The ventilation duct is "T"-shaped and is a three-way ventilation duct.

7. The prefabricated fireproof ventilation duct according to claim 1, wherein: Several fireproof single plates are spliced ​​end to end through the plug-in grooves to form a ventilation duct with a rectangular port cross-section. The ventilation duct is in a "cross" shape and is four-way.

8. The prefabricated fireproof ventilation duct according to claim 1, wherein: A plurality of support screws (5) are vertically passed through the ventilation duct, and an outer gasket and an inner gasket are sleeved on the support screws. The outer gasket and the inner gasket are threadedly connected to the support screws, and the support screws are fixedly connected to the ventilation duct through the outer gasket and the inner gasket.

9. The prefabricated fireproof ventilation duct according to claim 1, characterized in that: The fireproof single panel is composed of an outer panel (11) and an inner panel (12). The long side of the outer panel is consistent with the long side of the inner panel, and the wide side of the outer panel is larger than the wide side of the inner panel. "L"-shaped clamping plates (13) are provided at the left and right long sides of the inner panel. Connecting plates (14) with a "U"-shaped cross section are fixed at the front and rear wide sides of the outer panel. The inner panel is buckled with the outer panel through the clamping plate and the connecting plate. The inner panel is fixedly connected to the connecting plate. A fireproof interlayer (15) is provided between the outer panel and the inner panel. A limiting plate I (16) is provided on one long side of the outer panel. The limiting plate I limits the clamping plate. A limiting plate II (17) is provided on the other long side of the outer panel. The plug-in slot is a slot formed between the limiting plate II and the clamping plate.

10. The prefabricated fireproof ventilation duct according to claim 9, characterized in that: The joints of the fireproof veneer are filled with fireproof glue.

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