Pressure-resistant and deformation-resistant air pipe

Abstract

The utility model discloses a pressure-resistant and deformation-resistant air pipe in the technical field of composite air pipes, which comprises a ventilation pipe, two ends of the ventilation pipe are fixedly connected with flange plates, the flange plates are fixedly connected end to end through connecting pipes, and the outer surface of the ventilation pipe is sleeved with a plurality of reinforcing rings. The reinforcing rings are fixed to the outer surface of the ventilation pipe through a plurality of fixing rods, a plurality of clamping blocks are arranged on the side faces, close to the outer surface of the ventilation pipe, of the fixing rods, a clamping groove is formed between every two adjacent clamping blocks, and the clamping grooves are connected to the outer portions of the reinforcing rings in a clamped mode and matched with the outer surfaces of the reinforcing rings. A plurality of mounting grooves are symmetrically formed in outer rings on the two sides of the connecting pipes, the bottom surfaces of the mounting grooves are flush with the outer ring plane of the flange plate, the fixing rods are mounted in the opposite mounting grooves of the two adjacent connecting pipes, the fixing rods are attached to the outer ring plane of the flange plate, and fixing blocks are arranged on the sides, away from the flange plate, of the fixing rods. And the fixing block is mounted in the mounting groove and is used for fixing the fixing rod in the mounting groove.

Description

Technical Field

[0001] The utility model relates to the technical field of composite air ducts, in particular to a pressure-resistant and deformation-resistant air duct. Background Art

[0002] Ducts are piping systems used for air transportation and distribution. They come in two types: composite ducts and inorganic ducts. They can be categorized by cross-sectional shape and material.

[0003] Among them, metal air ducts are made of various metal materials, commonly including galvanized iron and stainless steel. With the continuous development of the storage tank industry, more and more industries and enterprises have applied storage tanks, and more and more enterprises have entered the storage tank industry. Composite air ducts are made of various inorganic materials and are divided into many types according to their composition, but most of them are lightweight, porous, and have high thermal resistance.

[0004] The market now uses traditional common plate flange air ducts, which will deform after a period of use, and the joints of the common plate flange air ducts are often loose and water seepage occurs. Utility Model Content

[0005] The purpose of the present invention is to provide a pressure-resistant and deformation-resistant air duct to solve the above-mentioned technical problems.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A pressure-resistant and deformation-resistant air duct comprises a ventilation pipe, wherein both ends of the ventilation pipe are fixedly connected with flanges, and the flanges are fixedly connected at the head and tail of a connecting pipe, and a plurality of reinforcing rings are sleeved on the outer surface of the ventilation pipe, and the plurality of reinforcing rings are fixed to the outer surface of the ventilation pipe by a plurality of fixing rods, and a plurality of clamping blocks are provided on the side of the fixing rod close to the outer surface of the ventilation pipe, and a clamping groove is formed between two adjacent clamping blocks, and the clamping groove is clamped on the outside of the reinforcing ring and matches the outer surface of the reinforcing ring. The outer rings on both sides of the connecting pipe are symmetrically provided with a plurality of mounting grooves, and the bottom surface of the mounting groove is flush with the outer ring plane of the flange, and the fixing rod is installed in the mounting grooves opposite to each other of the two adjacent connecting pipes, and the fixing rod is in contact with the outer ring plane of the flange, and a fixing block is provided on the side of the fixing rod away from the flange, and the fixing block is installed in the mounting groove and is used to fix the fixing rod in the mounting groove.

[0008] As a further solution of the present invention: the reinforcement ring includes a completely identical first reinforcement half ring and a second reinforcement half ring, the two ends of the first reinforcement half ring and the second reinforcement half ring abut against each other to form a ring structure, and the outer surface of the ventilation pipe is provided with a plurality of positioning grooves matching the inner ring of the reinforcement ring.

[0009] As a further solution of the present invention: the two ends of the fixing rod match the mounting grooves and are slidably connected, the height of the fixing rod is lower than the height of the mounting grooves, the mounting groove openings on both sides of the connecting pipe are back to back, the fixing block presses against the fixing rod, and the outer surface is flush with the outer ring of the connecting pipe.

[0010] As a further solution of the present invention: limiting grooves are symmetrically provided in the installation groove, limiting blocks are provided on both sides of the fixing block, the two limiting blocks match the limiting grooves and are slidably connected, screw holes passing through the limiting grooves are provided on both sides of the connecting pipe, through-holes corresponding to the screw holes are provided on the limiting blocks, the through-holes have the same diameter as the screw holes, and screws are provided in the through-holes and the screw holes.

[0011] As a further solution of the present invention: annular limiting rings are provided on both sides of the connecting pipe, and the limiting rings are located between the mounting groove and the inner ring of the connecting pipe. An annular limiting ring groove is provided on the side of the flange opposite to the limiting ring, and the limiting ring groove matches and is meshed with the limiting ring.

[0012] As a further solution of the present invention: the inner ring of the connecting pipe is flush with the inner ring of the flange, the inner rings on both sides of the connecting pipe are provided with an annular first sealing groove, the inner ring on the side of the flange opposite to the first sealing groove is provided with an annular second sealing groove, and annular sealing gaskets are installed in the first sealing groove and the second sealing groove.

[0013] As a further solution of the present invention: the number of the clamping blocks is one more than the number of the reinforcement rings, and the number of the clamping slots is the same as the number of the reinforcement rings.

[0014] As a further solution of the present invention: the two flanges are fixedly connected to the connecting pipe by bolts.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In the utility model, the inner ring of the connecting pipe is flush with the inner ring of the flange, so the first sealing groove corresponds to the second sealing groove, and the sealing gasket is installed in the first sealing groove and the second sealing groove, which can improve the tightness of the connection between the connecting pipe and the two flanges and prevent water seepage.

[0017] In the present invention, the two ends of the first reinforcing half ring and the second reinforcing half ring abut against each other to form a ring-shaped structure, which is clamped on the outer surface of the ventilation pipe through the positioning groove, thereby improving the ability of the ventilation pipe to resist external forces and preventing the ventilation pipe from being deformed; the arrangement of the first reinforcing half ring and the second reinforcing half ring facilitates the arrangement of the reinforcing ring on the outer surface of the ventilation pipe.

[0018] In the present invention, a plurality of fixing rods abut against the outer ring of the reinforcing ring, which not only firmly connects the first reinforcing half ring and the second reinforcing half ring, but also enhances the ability of the reinforcing ring to resist bending of the ventilation pipe and prevents deformation of the ventilation pipe.

[0019] In the utility model, the height of the fixing rod is lower than the height of the installation slot, which provides space for the fixing block to be installed in the installation slot. The fixing block installed in the installation slot can fix the two ends of the fixing rod in the installation slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0023] Figure 4 for Figure 1 Enlarged view of point C in the middle;

[0024] Figure 5 It is a structural diagram of the utility model;

[0025] Figure 6 for Figure 5 Enlarged view of point D in the middle;

[0026] Figure 7 It is a cross-sectional view of the utility model;

[0027] Figure 8 for Figure 7 Enlarged view of point E in the middle;

[0028] Figure 9 It is a structural diagram of another state in the utility model.

[0029] In the figure: 1. Ventilation pipe; 11. Positioning groove; 2. Flange; 21. Limiting ring groove; 22. Second sealing groove; 3. Connecting pipe; 31. Limiting ring; 32. First sealing groove; 33. Mounting groove; 34. Limiting groove; 35. Screw hole; 4. Sealing gasket; 5. Reinforcement ring; 51. First reinforcing half ring; 52. Second reinforcing half ring; 6. Fixing rod; 61. Block; 62. Slot; 7. Fixing block; 71. Limiting block; 72. Through hole; 73. Screw. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0031] Example

[0032] A pressure-resistant and deformation-resistant air duct, reference Figures 1-9 , including a ventilation pipe 1, with flanges 2 fixedly connected at both ends of the ventilation pipe 1, the flanges 2 are fixedly connected end to end through connecting pipes 3, and the two flanges 2 are fixedly connected to the connecting pipes 3 by bolts; the effect achieved by the above components is: the flange 2 at one end of the ventilation pipe 1 is fixedly connected to the flange 2 at the other end of the ventilation pipe 1 through the connecting pipe 3, and the connecting pipe 3 is fixedly connected to the two flanges 2 by bolts.

[0033] like Figures 1-9 As shown, in this embodiment: the two sides of the connecting pipe 3 are fixedly connected to the two flanges 2 by bolts, and the outer rings on both sides of the connecting pipe 3 are symmetrically provided with a plurality of mounting grooves 33, the bottom surfaces of the mounting grooves 33 are flush with the outer ring plane of the flange 2, and annular limiting rings 31 are provided on the two side surfaces of the connecting pipe 3, the limiting ring 31 is located between the mounting grooves 33 and the inner ring of the connecting pipe 3, and an annular limiting ring groove 21 is provided on the side opposite to the flange 2 and the limiting ring 31, and the limiting ring groove 21 matches and engages with the limiting ring 31; the effect achieved by the above components is that the flange 2 at one end of the ventilation pipe 1 and the flange 2 at the other end of the ventilation pipe 1 are located on the two sides of the connecting pipe 3, and the limiting rings 31 on both sides of the connecting pipe 3 are inserted into the limiting ring grooves 21 on the flanges 2 on both sides, which can facilitate the accurate connection of the flanges 2 at both ends of the ventilation pipe 1; the limiting ring grooves 21 match the limiting rings 31, which can facilitate the accurate connection of the flanges 2 and the connecting pipe 3.

[0034] like Figures 1-9 As shown, in this embodiment: the inner ring of the connecting pipe 3 is flush with the inner ring of the flange 2, and an annular first sealing groove 32 is provided on the inner rings on both sides of the connecting pipe 3. An annular second sealing groove 22 is provided on the inner ring of the side of the flange 2 opposite to the first sealing groove 32, and an annular sealing gasket 4 is installed in the first sealing groove 32 and the second sealing groove 22; the effect achieved by the above components is: the inner ring of the connecting pipe 3 is flush with the inner ring of the flange 2, so the first sealing groove 32 corresponds to the second sealing groove 22, and the sealing gasket 4 is installed in the first sealing groove 32 and the second sealing groove 22, which can improve the tightness of the connection between the connecting pipe 3 and the two flanges 2 and prevent water seepage.

[0035] like Figures 1-9As shown, in this embodiment: a plurality of reinforcing rings 5 ​​are sleeved on the outer surface of the ventilation pipe 1, and the reinforcing ring 5 includes a completely identical first reinforcing half ring 51 and a second reinforcing half ring 52, and the two ends of the first reinforcing half ring 51 and the second reinforcing half ring 52 are pressed against each other to form an annular structure, and a plurality of positioning grooves 11 matching the inner ring of the reinforcing ring 5 are opened on the outer surface of the ventilation pipe 1; the effect achieved by the above components is: the two ends of the first reinforcing half ring 51 and the second reinforcing half ring 52 are pressed against each other to form an annular structure, and are clamped on the outer surface of the ventilation pipe 1 through the positioning grooves 11, thereby improving the ability of the ventilation pipe 1 to resist external forces and preventing the ventilation pipe 1 from deformation; the provision of the first reinforcing half ring 51 and the second reinforcing half ring 52 facilitates the sleeve of the reinforcing ring 5 on the outer surface of the ventilation pipe 1.

[0036] like Figures 1-9 As shown, in this embodiment: a plurality of reinforcing rings 5 ​​are fixed to the outer surface of the ventilation pipe 1 by a plurality of fixing rods 6, and a plurality of clamping blocks 61 are provided on the side of the fixing rod 6 close to the outer surface of the ventilation pipe 1. The number of the clamping blocks 61 is one more than the number of the reinforcing rings 5. A clamping groove 62 is formed between two adjacent clamping blocks 61. The number of the clamping grooves 62 is the same as the number of the reinforcing rings 5. The clamping grooves 62 are clamped on the outside of the reinforcing ring 5 and match the outer surface of the reinforcing ring 5. The effect achieved by the above components is that the plurality of fixing rods 6 push against the outer ring of the reinforcing ring 5, which can not only make the first reinforcing half ring 51 and the second reinforcing half ring 52 are firmly connected, and can enhance the ability of the reinforcing ring 5 to resist the bending of the ventilation pipe 1 and prevent the ventilation pipe 1 from deformation; a groove 62 is formed between the two adjacent clamping blocks 61, which can limit the position of the reinforcing ring 5 and prevent the reinforcing ring 5 from sliding along the outer surface of the ventilation pipe 1 to maintain the stability of the position of the reinforcing ring 5; the number of clamping blocks 61 is one more than the number of reinforcing rings 5, so the number of clamping grooves 62 is the same as the number of reinforcing rings 5, which can just clamp all the reinforcing rings 5 ​​to maintain the stability of the reinforcing ring 5.

[0037] like Figures 1-9 As shown, in this embodiment: the fixing rod 6 is installed in the opposite mounting grooves 33 of the two adjacent connecting pipes 3, the fixing rod 6 is in contact with the outer ring plane of the flange 2, the two ends of the fixing rod 6 are matched with the mounting grooves 33 and are slidably connected, and the openings of the mounting grooves 33 on both sides of the connecting pipe 3 are opposite to each other; the effect achieved by the above components is: the two ends of the fixing rod 6 are slidably connected in the opposite mounting grooves 33 of the two adjacent connecting pipes 3, and are in contact with the outer ring plane of the flange 2; the openings of the mounting grooves 33 on both sides of the connecting pipe 3 are opposite to each other, so that the two ends of the fixing rod 6 can be installed in the two mounting grooves 33.

[0038] like Figures 1-9As shown, in this embodiment: a fixing block 7 is provided on the side of the fixing rod 6 away from the flange 2, and the fixing block 7 is installed in the installation groove 33. The height of the fixing rod 6 is lower than the height of the installation groove 33, the fixing block 7 presses against the fixing rod 6, and the outer surface is flush with the outer ring of the connecting pipe 3, and the fixing block 7 is used to fix the fixing rod 6 in the installation groove 33; the effect achieved by the above components is: the height of the fixing rod 6 is lower than the height of the installation groove 33, which provides space for the fixing block 7 to be installed in the installation groove 33, and the fixing block 7 installed in the installation groove 33 can fix the two ends of the fixing rod 6 in the installation groove 33; the outer surface of the fixing block 7 is flush with the outer ring of the connecting pipe 3, so that stable installation can be achieved.

[0039] like Figures 1-9 As shown, in this embodiment: limiting grooves 34 are symmetrically opened in the installation groove 33, and limiting blocks 71 are provided on both sides of the fixed block 7, and the two limiting blocks 71 match the limiting grooves 34 and are slidably connected; the effects achieved by the above components are: the two limiting blocks 71 are slidably connected in the limiting grooves 34, so that the fixed block 7 can be smoothly inserted into the installation groove 33; the two limiting blocks 71 can stably install the fixed block 7 in the installation groove 33.

[0040] like Figures 1-9 As shown, in this embodiment: screw holes 35 passing through the limiting groove 34 are provided on both sides of the connecting pipe 3, and a through hole 72 corresponding to the screw hole 35 is provided on the limiting block 71. The through hole 72 has the same diameter as the screw hole 35, and screws 73 are provided in the through hole 72 and the screw hole 35; the effect achieved by the above components is that the screw 73 passes through the through hole 72 and the screw hole 35, so that the two limiting blocks 71 can be firmly installed in the limiting blocks 71, and the two limiting blocks 71 can stably install the fixing block 7 in the installation groove 33.

[0041] The usage principle of the present utility model is as follows: first, insert the limiting rings 31 on both sides of the connecting pipe 3 into the limiting ring grooves 21 on the flanges 2 on both sides, and at the same time, install the sealing gasket 4 in the first sealing groove 32 and the second sealing groove 22, and then, fix the connecting pipe 3 to the two flanges 2 by bolts, then, clamp the first reinforcing half ring 51 and the second reinforcing half ring 52 in the positioning groove 11, and the two ends press against each other. After all the reinforcing rings 5 ​​are installed in the positioning groove 11, clamp the slots 62 of several fixing rods 6 on the outside of the reinforcing ring 5, and at the same time ensure that the two ends of the fixing rod 6 slide into the installation groove 33, and then, smoothly insert the fixing block 7 into the installation groove 33, and ensure that the two limiting blocks 71 slide into the limiting groove 34, and finally insert the screw 73 into the through hole 72 and the screw hole 35 to stably install the fixing block 7 in the installation groove 33.

[0042] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A pressure-resistant and deformation-resistant air duct, comprising a ventilation duct (1), characterized in that: The two ends of the ventilation pipe (1) are fixedly connected with flanges (2), and the flanges (2) are fixedly connected at the head and tail through a connecting pipe (3). The outer surface of the ventilation pipe (1) is sleeved with a plurality of reinforcing rings (5), and the plurality of reinforcing rings (5) are fixed to the outer surface of the ventilation pipe (1) through a plurality of fixing rods (6). The side of the fixing rod (6) close to the outer surface of the ventilation pipe (1) is provided with a plurality of clamping blocks (61), and a clamping groove (62) is formed between two adjacent clamping blocks (61). The clamping groove (62) is clamped on the outside of the reinforcing ring (5) and is connected to the reinforcing ring (5). ) outer surfaces thereof match, a plurality of mounting grooves (33) are symmetrically provided on the outer rings on both sides of the connecting pipe (3), the bottom surfaces of the mounting grooves (33) are flush with the outer ring plane of the flange (2), the fixing rod (6) is installed in the mounting grooves (33) opposite to the two adjacent connecting pipes (3), the fixing rod (6) is in contact with the outer ring plane of the flange (2), a fixing block (7) is provided on the side of the fixing rod (6) away from the flange (2), the fixing block (7) is installed in the mounting groove (33), and is used to fix the fixing rod (6) in the mounting groove (33).

2. The pressure-resistant and deformation-resistant air duct according to claim 1, characterized in that: The reinforcement ring (5) comprises a first reinforcement half ring (51) and a second reinforcement half ring (52) that are identical, wherein the first reinforcement half ring (51) and the second reinforcement half ring (52) are pressed against each other at both ends to form a ring structure, and the outer surface of the ventilation pipe (1) is provided with a plurality of positioning grooves (11) that match the inner ring of the reinforcement ring (5).

3. The pressure-resistant and deformation-resistant air duct according to claim 2, characterized in that: The two ends of the fixing rod (6) match the mounting grooves (33) and are slidably connected. The height of the fixing rod (6) is lower than the height of the mounting grooves (33). The openings of the mounting grooves (33) on both sides of the connecting pipe (3) are opposite to each other. The fixing block (7) abuts against the fixing rod (6), and its outer surface is flush with the outer ring of the connecting pipe (3).

4. The pressure-resistant and deformation-resistant air duct according to claim 3, characterized in that: The installation groove (33) is symmetrically provided with a limiting groove (34), and limiting blocks (71) are provided on both sides of the fixing block (7). The two limiting blocks (71) match the limiting groove (34) and are slidably connected. The two side surfaces of the connecting pipe (3) are provided with screw holes (35) penetrating the limiting groove (34). The limiting blocks (71) are provided with through holes (72) corresponding to the screw holes (35). The through holes (72) and the screw holes (35) have the same diameter. Screws (73) are provided in the through holes (72) and the screw holes (35).

5. The pressure-resistant and deformation-resistant air duct according to claim 4, characterized in that: An annular limiting ring (31) is provided on both sides of the connecting pipe (3), and the limiting ring (31) is located between the mounting groove (33) and the inner ring of the connecting pipe (3). An annular limiting ring groove (21) is provided on the side of the flange (2) opposite to the limiting ring (31), and the limiting ring groove (21) matches and is meshed with the limiting ring (31).

6. The pressure-resistant and deformation-resistant air duct according to claim 5, characterized in that: The inner ring of the connecting pipe (3) is flush with the inner ring of the flange (2); an annular first sealing groove (32) is provided on the inner rings on both sides of the connecting pipe (3); an annular second sealing groove (22) is provided on the inner ring of the side of the flange (2) opposite to the first sealing groove (32); an annular sealing gasket (4) is installed in the first sealing groove (32) and the second sealing groove (22).

7. The pressure-resistant and deformation-resistant air duct according to claim 6, characterized in that: The number of the clamping blocks (61) is one more than the number of the reinforcement rings (5), and the number of the clamping slots (62) is the same as the number of the reinforcement rings (5).

8. The pressure-resistant and deformation-resistant air duct according to claim 7, characterized in that: The two flanges (2) are fixedly connected to the connecting pipe (3) by means of bolts.

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