Giant ribbed thin-shell rectangular air duct for roof and working method of giant ribbed thin-shell rectangular air duct

Abstract

The invention relates to the technical field of building air ducts, and discloses a roof giant ribbed thin-shell rectangular air duct and a working method thereof.The roof giant ribbed thin-shell rectangular air duct comprises a thin-shell rectangular air duct body, and the thin-shell rectangular air duct body comprises a top plate, a bottom plate and side plates connected to the left side and the right side of the top plate and the left side and the right side of the bottom plate; the connecting assembly comprises an angle steel flange arranged at an inlet and an outlet of the thin-shell rectangular air duct body; the height adjusting assembly comprises a first lead screw penetrating through the middle position of the top plate and the middle position of the bottom plate, an inner adjusting nut and an outer adjusting nut are connected to the position, located on the top plate, of the first lead screw, the inner adjusting nut is located below the top plate, and the outer adjusting nut is located above the top plate. The invention aims to protect the huge roof air duct from deformation and rusting and prolong the service life of the air duct.

Description

Technical Field

[0001] The invention relates to the technical field of building air ducts, and in particular to a giant ribbed thin-shell rectangular air duct for a roof and a working method thereof. Background Art

[0002] Roof ducts are pipes used for air delivery. According to the material classification, they can be divided into galvanized ducts, metal ducts, composite ducts, etc. According to the cross-sectional shape, ducts can be divided into circular ducts, rectangular ducts, oblate ducts, etc. At present, rectangular galvanized ducts are the main ones.

[0003] After processing and forming, the air duct body is a rectangular thin shell cavity structure. Despite the reinforcement measures, it is still inevitable that there will be local shallow depressions or deformations on the upper surface of the formed air duct. When the roof air duct encounters relatively humid weather such as rain and snow, it is easy for water to accumulate in the depressions or deformations on the upper surface of the air duct. Therefore, under the special conditions of long-term water accumulation, high temperature, high pressure, acid and alkali, the galvanized layer will gradually be damaged. Once the galvanized layer is damaged or falls off, the air duct will begin to rust, especially when it is frequently exposed to water or in a high humidity environment. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a giant ribbed thin-shell rectangular roof air duct and a working method thereof, the purpose of which is to protect the giant roof air duct from deformation and rust, thereby extending the service life of the air duct.

[0005] In order to solve the above technical problems, the present invention is implemented by the following technical solutions:

[0006] According to a first aspect of the present invention, there is provided a giant ribbed thin-shell rectangular duct for a roof, comprising:

[0007] A thin-shell rectangular air duct body, comprising a top plate and a bottom plate arranged vertically opposite to each other, and side plates connected to the top plate and the left and right sides of the bottom plate;

[0008] The connection assembly includes an angle steel flange arranged at the inlet and outlet of the thin-shell rectangular air duct body;

[0009] The height adjustment assembly includes a first screw rod passing through the middle position of the top plate and the bottom plate, the first screw rod is connected to an inner adjustment nut and an outer adjustment nut at the top plate, the inner adjustment nut is located below the top plate, and the outer adjustment nut is located above the top plate.

[0010] In a possible implementation of the first aspect, the height adjustment assembly also includes a second screw rod located through the top plate and the bottom plate, the second screw rod is located on both sides of the first screw rod, and the second screw rod is connected to the top plate with an inner adjusting nut and an outer adjusting nut, the inner adjusting nut is located below the top plate, and the outer adjusting nut is located above the top plate.

[0011] In a possible implementation of the first aspect, a reinforcing angle steel is fixed on the upper end surface of the base plate, and the reinforcing angle steel is opposite to the position where the first screw rod and the second screw rod pass through the base plate, and the first screw rod and the second screw rod pass through the reinforcing angle steel, and the first screw rod and the second screw rod are connected to the base plate with an inner adjusting nut and an outer adjusting nut, the inner adjusting nut is located above the reinforcing angle steel, and the outer adjusting nut is located below the base plate.

[0012] In a possible implementation manner of the first aspect, a length of the first screw rod extending out of the top plate is greater than a length of the second screw rod extending out of the top plate.

[0013] In a possible implementation manner of the first aspect, a gasket is disposed between the top plate and an outer adjusting nut on the first screw rod and the second screw rod that is located above the top plate.

[0014] In a possible implementation manner of the first aspect, the gasket includes a rubber gasket and a metal gasket, and the rubber gasket is located below the metal gasket.

[0015] In a possible implementation of the first aspect, the giant ribbed thin-shell rectangular roof air duct further includes ribs, and the ribs are located on the lower end surface of the top plate.

[0016] In a possible implementation manner of the first aspect, the angle steel flange is surrounded by four angle steels to form a rectangular frame.

[0017] In a possible implementation manner of the first aspect, the top plate, the bottom plate, and the side plate are all connected to corresponding angle steel flanges by bolts.

[0018] According to a second aspect of the present invention, a working method for a giant ribbed thin-shell rectangular air duct on a roof is provided, wherein the middle position of the top plate is lifted upward to form a slope by screwing upward the inner adjustment nut and the outer adjustment nut on the first screw rod.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] The invention provides a roof giant ribbed thin-shell rectangular air duct, wherein the height adjustment component comprises a first screw rod penetrating the middle position of the top plate and the bottom plate, and the first screw rod is connected to an inner adjustment nut and an outer adjustment nut at the top plate, wherein the inner adjustment nut is located below the top plate, and the outer adjustment nut is located above the top plate. The height adjustment component not only supports the top plate, ensuring that the roof giant air duct is not easily deformed; but also by screwing the inner adjustment nut and the outer adjustment nut on the first screw rod upward, the middle position of the top plate is lifted upward to form a slope, so that the upper surface of the top plate maintains a certain slope, and in rainy and snowy weather, the rain and snow on the air duct can be drained along the slope of the air duct surface, and the upper surface will not cause long-term water accumulation and cause the air duct to rust, which effectively protects the roof giant air duct from deformation and rust, and prolongs the service life of the air duct.

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the specific implementation modes of the present invention, the drawings required for use in the description of the specific implementation modes will be briefly introduced below. Obviously, the drawings described below are some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of a giant ribbed thin-shell rectangular air duct on a roof according to an embodiment of the present invention.

[0024] Figure 2 A top view of a giant ribbed thin-shell rectangular air duct on a roof according to an embodiment of the present invention.

[0025] Figure 3 This is a front view of a giant ribbed thin-shell rectangular air duct on a roof according to an embodiment of the present invention.

[0026] Figure 4 for Figure 3 A partial enlarged view of .

[0027] In the figure: 1-top plate; 2-bottom plate; 3-side plate; 401-first screw rod; 402-second screw rod; 5-reinforcement angle steel; 601-inner adjustment nut; 602-outer adjustment nut; 701-rubber gasket; 702-metal gasket; 8-angle steel flange; 9-rib. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] As described in the background technology, there are local shallow depressions or deformations on the upper surface of the giant roof air duct. When encountering relatively humid weather such as rain and snow, water is easily accumulated in the depressions or deformations on the upper surface of the air duct, causing the air duct to rust later. In order to solve the above technical problems, the present invention proposes a giant ribbed thin-shell rectangular air duct for the roof.

[0030] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present invention provides a giant ribbed thin-shell rectangular air duct for a roof, including a thin-shell rectangular air duct body, a connecting assembly and a height adjustment assembly. The thin-shell rectangular air duct body includes a top plate 1 and a bottom plate 2 arranged opposite to each other up and down, and side plates 3 connected to the top plate 1 and the bottom plate 2 on both sides. The connecting assembly includes an angle steel flange 8 arranged at the entrance and exit of the thin-shell rectangular air duct body. The height adjustment assembly includes a first screw rod 401 passing through the middle position of the top plate 1 and the bottom plate 2, and the first screw rod 401 is connected to an inner adjusting nut 601 and an outer adjusting nut 602 at the top plate 1, the inner adjusting nut 601 is located below the top plate 1, and the outer adjusting nut 602 is located above the top plate 1.

[0031] Specifically, according to the design requirements, a galvanized steel sheet that meets the standards is selected as the raw material to ensure that it has good corrosion resistance and sufficient mechanical strength. The thickness of the galvanized steel sheet is determined according to factors such as the size of the air duct, the use pressure and the use environment. For example, the thickness of the galvanized steel sheet is between 1.2 mm and 2.0 mm. The galvanized steel sheet is processed into a rectangular thin shell structure to form a top plate 1, a bottom plate 2 and two side plates 3. An angle steel flange 8 is provided at the entrance and exit of the thin shell rectangular air duct body, and the angle steel flange 8 is used to realize the assembly between adjacent thin shell rectangular air duct bodies. In the middle position of the top plate 1 and the bottom plate 2, a hole is opened according to the design requirements for installing the first screw rod 401. When opening the hole, it should be ensured that the diameter of the hole matches the diameter of the screw rod, and the verticality and coaxiality of the hole are maintained. The first screw rod 401 is passed through the openings of the top plate 1 and the bottom plate 2, and the inner adjustment nut 601 and the outer adjustment nut 602 are respectively installed on the upper and lower sides of the top plate 1. The inner adjustment nut 601 is located below the top plate 1, and the outer adjustment nut 602 is located above the top plate 1. The inner adjustment nut 601 and the outer adjustment nut 602 are used to adjust the slope of the air duct top plate 1. By screwing the inner adjustment nut 601 and the outer adjustment nut 602 on the first screw rod 401 upward, the middle position of the top plate 1 is lifted upward to form a slope to prevent water accumulation and other phenomena from causing damage to the air duct. After the inner adjustment nut 601 is adjusted, the outer adjustment nut 602 can be locked to fix the slope ratio of the top plate 1 unchanged.

[0032] Exemplarily, the angle steel flange 8 is formed by four angle steels to form a rectangular frame, which has a simple structure and low cost.

[0033] Through the above specific implementation methods, the giant ribbed thin-shell rectangular roof air duct of the present invention not only effectively solves the problem that traditional air ducts are prone to water accumulation and rust in humid environments, but also improves the stability and adaptability of the air duct through the design of connecting components and height adjustment components, thereby extending its service life.

[0034] In one possible implementation, combining Figure 1 and 3 As shown, the height adjustment assembly also includes a second screw rod 402 that passes through the top plate 1 and the bottom plate 2. The second screw rod 402 is located on both sides of the first screw rod 401. The second screw rod 402 is connected to an inner adjusting nut 601 and an outer adjusting nut 602 at the top plate 1. The inner adjusting nut 601 is located below the top plate 1, and the outer adjusting nut 602 is located above the top plate 1.

[0035] Specifically, the second screw rod 402 is also designed to penetrate the top plate 1 and the bottom plate 2, which not only plays a role in supporting and adjusting the height in the vertical direction, but also enhances the stability of the structure and the flexibility of adjustment by penetrating the entire air duct structure. The second screw rod 402 is located on both sides of the first screw rod 401. Such a layout helps to disperse stress and improve the stability and reliability of the entire adjustment system. Similarly, at the top plate 1, the second screw rod 402 is connected with an inner adjustment nut 601 and an outer adjustment nut 602, which are respectively located on the upper and lower sides of the top plate 1, the inner adjustment nut 601 is located below the top plate 1, and the outer adjustment nut 602 is located above the top plate 1. Specifically, when the height of the air duct needs to be adjusted, the operator can rotate the inner adjustment nut 601 and the outer adjustment nut 602 to move them up and down on the second screw rod 402. Since the inner adjustment nut 601 and the outer adjustment nut 602 are respectively located on both sides of the top plate 1, they can work together to ensure that the top plate 1 maintains a stable change during the adjustment process.

[0036] More preferably, combined with Figure 3 As shown, a reinforcing angle steel 5 is fixed on the upper end surface of the base plate 2, and the reinforcing angle steel 5 is opposite to the position where the first screw rod 401 and the second screw rod 402 pass through the base plate 2. The first screw rod 401 and the second screw rod 402 pass through the reinforcing angle steel 5, and the first screw rod 401 and the second screw rod 402 are connected to the base plate 2 with an inner adjusting nut 601 and an outer adjusting nut 602. The inner adjusting nut 601 is located above the reinforcing angle steel 5, and the outer adjusting nut 602 is located below the base plate 2.

[0037] Specifically, the design purpose of the reinforcement angle steel 5 is to enhance the strength and stability of the base plate 2 when bearing the weight of the air duct and external loads, especially at the position where the first screw rod 401 and the second screw rod 402 pass through the base plate 2. These areas may produce stress concentration due to the penetration of the screw rods. The reinforcement angle steel 5 is placed at the position opposite to the first screw rod 401 and the second screw rod 402 passing through the base plate 2, which can effectively disperse the stress in these areas and prevent the base plate 2 from being deformed or damaged. At the same time, the first screw rod 401 and the second screw rod 402 not only penetrate the base plate 2, but also penetrate the reinforcement angle steel 5, further enhancing the structural integrity and stability of the entire height adjustment system. At the base plate 2, the first screw rod 401 and the second screw rod 402 are also connected to the inner adjustment nut 601 and the outer adjustment nut 602, the inner adjustment nut 601 is located above the reinforcement angle steel 5, and the outer adjustment nut 602 is located below the base plate 2.

[0038] In one possible implementation, combining Figure 3 As shown, the length of the first screw rod 401 extending out of the top plate 1 is greater than the length of the second screw rod 402 extending out of the top plate 1, which can achieve the effect that the top plate 1 is high in the middle and low around, forming a slope for free drainage.

[0039] Preferably, a gasket is provided between the outer adjusting nut 602 located above the top plate 1 on the first screw rod 401 and the second screw rod 402 and the top plate 1. The gasket has a buffering and shock absorbing effect. During the operation of the air duct, the top plate 1 may be subjected to certain vibrations or shocks due to changes in the external environment (such as temperature fluctuations, wind force, etc.) or the influence of internal airflow. The presence of the gasket can absorb these vibrations and shocks, reduce their direct impact on the top plate 1 and the entire air duct, thereby protecting the integrity and stability of the air duct. Secondly, the gasket also plays a role in sealing and dustproofing. If there is a gap between the top plate 1 and the outer adjusting nut 602, it may cause external dust, moisture and other impurities to enter the interior of the air duct, affecting the normal operation and air quality of the air duct. The setting of the gasket can fill these gaps, improve the sealing of the air duct, and prevent the intrusion of external impurities.

[0040] In one possible implementation, the gasket includes a rubber gasket 701 and a metal gasket 702, and the rubber gasket 701 is located below the metal gasket 702. With the design of the combined gasket, the rubber gasket 701 can effectively fill the small gap between the external adjustment nut 602 and the top plate 1 due to its good elasticity and sealing properties, preventing external impurities such as dust and moisture from penetrating into the air duct. It can also absorb and buffer the force generated by vibration or impact, and protect the integrity and stability of the air duct. The metal gasket 702 enhances the overall strength and durability of the gasket. The metal gasket 702 can withstand greater pressure and wear, ensuring that the gasket will not fail due to deformation or damage during long-term use. At the same time, the metal gasket 702 can also provide support for the rubber gasket 701 to prevent it from being squeezed out or deformed when subjected to greater pressure.

[0041] In one achievable manner, Figure 1 As shown, the giant ribbed thin-shell rectangular air duct on the roof also includes ribs 9, which are located on the lower end surface of the top plate 1. The ribs 9 further enhance the structural strength and rigidity of the top plate 1, and can form an effective supporting structure under the top plate 1, thereby dispersing and resisting various loads from above. The ribs 9 can improve the rigidity and deformation resistance of the top plate 1. When subjected to external loads, the top plate 1 may produce certain deformation or vibration. The presence of the ribs 9 can limit the occurrence of such deformation and maintain the flatness and stability of the top plate 1. Exemplarily, the ribs 9 are arranged diagonally.

[0042] In one embodiment, the top plate 1, the bottom plate 2 and the side plate 3 are all connected to the corresponding angle steel flange 8 by bolts. The bolt connection method can make the top plate 1, the bottom plate 2 and the side plate 3 more flexible and convenient during installation and maintenance. The bolt connection can also adapt to the slight deformation or displacement that may occur in the air duct during use. Due to factors such as temperature changes and wind pressure fluctuations, various parts of the air duct may undergo slight deformation or displacement. If a rigid connection method is used, these deformations or displacements may cause stress concentration or damage at the connection. The bolt connection has a certain flexibility and adaptability, which can allow relative movement within a certain range between the various parts of the air duct, thereby protecting the connection from damage.

[0043] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0048] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A giant ribbed thin shell rectangular duct for roof, characterized in that: include: A thin-shell rectangular air duct body comprises a top plate (1) and a bottom plate (2) arranged vertically opposite to each other, and side plates (3) connected to the top plate (1) and the bottom plate (2) on both sides; A connection assembly, comprising an angle steel flange (8) arranged at the inlet and outlet of a thin-shell rectangular air duct body; A height adjustment assembly comprises a first screw rod (401) passing through the middle position of the top plate (1) and the bottom plate (2); the first screw rod (401) is connected to an inner adjustment nut (601) and an outer adjustment nut (602) at the top plate (1); the inner adjustment nut (601) is located below the top plate (1), and the outer adjustment nut (602) is located above the top plate (1).

2. The giant ribbed thin-shell rectangular air duct for roof according to claim 1, characterized in that: The height adjustment assembly further comprises a second screw rod (402) which passes through the top plate (1) and the bottom plate (2); the second screw rod (402) is located on both sides of the first screw rod (401); an inner adjustment nut (601) and an outer adjustment nut (602) are connected to the second screw rod (402) at the top plate (1); the inner adjustment nut (601) is located below the top plate (1), and the outer adjustment nut (602) is located above the top plate (1).

3. The giant ribbed thin shell rectangular air duct for roof according to claim 2, characterized in that: A reinforcing angle steel (5) is fixed on the upper end surface of the base plate (2), and the reinforcing angle steel (5) is directly opposite to the position where the first screw rod (401) and the second screw rod (402) pass through the base plate (2). The first screw rod (401) and the second screw rod (402) pass through the reinforcing angle steel (5), and the first screw rod (401) and the second screw rod (402) are connected to an inner adjusting nut (601) and an outer adjusting nut (602) located at the base plate (2), wherein the inner adjusting nut (601) is located above the reinforcing angle steel (5), and the outer adjusting nut (602) is located below the base plate (2).

4. The giant ribbed thin shell rectangular air duct for roof according to claim 2, characterized in that: The length of the first screw rod (401) extending out of the top plate (1) is greater than the length of the second screw rod (402) extending out of the top plate (1).

5. The giant ribbed thin-shell rectangular air duct for roof according to claim 3 is characterized in that: A gasket is provided between the outer adjustment nut (602) located above the top plate (1) and on the first screw rod (401) and the second screw rod (402) and the top plate (1).

6. The giant ribbed thin-shell rectangular air duct for roof according to claim 5, characterized in that: The gasket comprises a rubber gasket (701) and a metal gasket (702), and the rubber gasket (701) is located below the metal gasket (702).

7. The giant ribbed thin-shell rectangular air duct for roof according to claim 1, characterized in that: The giant ribbed thin-shell rectangular air duct on the roof also includes ribs (9), and the ribs (9) are located on the lower end surface of the top plate (1).

8. The giant ribbed thin shell rectangular air duct for roof according to claim 1, characterized in that: The angle steel flange (8) is surrounded by four angle steels to form a rectangular frame.

9. The giant ribbed thin shell rectangular air duct for roof according to claim 1, characterized in that: The top plate (1), the bottom plate (2) and the side plate (3) are all connected to corresponding angle steel flanges (8) via bolts.

10. A method for operating a giant ribbed thin-shell rectangular air duct on a roof according to any one of claims 1 to 9, characterized in that: By screwing the inner adjustment nut (601) and the outer adjustment nut (602) on the first screw rod (401) upward, the middle position of the top plate (1) is lifted upward to form a slope.

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