Rivet-free connection flange and machining method thereof
A technology without rivets and flanges, applied in flange connection, metal processing, metal processing equipment, etc., can solve the problems of bulkiness, high cost, complicated processing procedures, etc., and achieve simple overall structure, improved stability, and good sealing effect Effect
Active Publication Date: 2021-04-16
杭州中瑞瑞泰克复合材料有限公司
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Problems solved by technology
At present, most of the flanges used to connect smoke-proof air ducts are angle steel flanges and common plate flanges, among which angle steel flanges are more common. The flanges are made of angle steel of different sizes. It is necessary to drill holes on the single-piece flange, and then use rivets to connect several air ducts together. The angle steel flange has good stability and can meet the requirements of the national standard for the small deformation of the rectangular air duct. However, its processing procedure Complicated, labor-intensive, expensive, and bulky
In particular, the center hole distance of flange connection rivets is prone to deviation, which brings many unexpected difficulties to the on-site butt joint of air ducts, resulting in low efficiency and increased labor costs
[0003] Therefore, it is necessary to develop a new type of flange to solve the problem of inconvenient installation.
Method used
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[0028] Example: by figure 1 and figure 2 It can be seen that the first profile and the second profile 3 are included, the upper part of the first profile is fixedly connected with the upper part of the second profile 3, both sides of the first profile extend downwards from the outer gusset 12, and the second profile Both sides of the lower part of the profile extend downwards from the inner gusset 31;
[0029] The inner gusset 31 has a tendency to reduce the distance between its adjacent outer gusset 12: refer to figure 1 As shown, the inner gusset 31 is inclined to the outside. During use, the steel plate of the air duct is inserted between the inner gusset 31 and the outer gusset 12, and the two gussets interact to press the steel plate against it.
[0030] In order to improve the tightness of the two gussets, one or both of them may be supported by elastic materials. To illustrate the distance, in this embodiment, the first section bar is made of aluminum alloy material...
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The invention relates to the technical field of air pipe flanges, in particular to a rivet-free connection flange and a machining method thereof. The rivet-free connection flange comprises a first sectional material and a second sectional material, the upper portion of the first sectional material is fixedly connected with the upper portion of the second sectional material, and the two sides of the first sectional material extend downwards to form outer buckle plates. The two sides of the lower portion of the second sectional material extend downwards from inner buckle plates. Each inner buckle plate has the trend of reducing the distance between each inner buckle plate and an adjacent outer buckle plate. The two sectional materials are formed through assembly and extrusion, and during installation, only a steel plate of an air pipe needs to be inserted between the two sectional materials, each steel plate is supported by the two faces in an abutting mode, stability is improved, and therefore rivet reinforcement is not needed.
Description
technical field [0001] The invention belongs to the technical field of air pipe flanges, in particular to a flange without rivet connection and a processing method thereof. Background technique [0002] With the increasing popularity of central air-conditioning, the demand for ventilation ducts is also increasing. Since the length of ventilation ducts is connected by sections of air ducts according to the ventilation distance, it is necessary to use flanges to connect them. At present, most of the flanges used to connect smoke-proof air ducts are angle steel flanges and common plate flanges, among which angle steel flanges are more common. The flanges are made of angle steel of different sizes. It is necessary to drill holes on the single-piece flange, and then use rivets to connect several air ducts together. The angle steel flange has good stability and can meet the requirements of the national standard for the small deformation of the rectangular air duct. However, its pr...
Claims
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Login to View More IPC IPC(8): F16L23/024F16L23/032B23P19/02
Inventor 邱云幸
Owner 杭州中瑞瑞泰克复合材料有限公司