Novel flat welding flange
A welding flange, a new type of technology, applied in the direction of flange connection, passing components, mechanical equipment, etc., can solve the problems of relative movement, affecting the sealing between flanges, etc., and achieve the effect of improving the sealing
Inactive Publication Date: 2017-05-24
江苏顺通管业有限公司
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
The flanges of the flat welding flange are usually connected by screws, but due to the gap between the screw and the screw hole, when the flange needs to reciprocate along the central axis during use, the relative movement between the flanges is easy to occur. Thus affecting the sealing between flanges
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[0012] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0013] Such as figure 1 , figure 2 As shown, a new type of flat welding flange 1 includes a flange plate 10, an inner hole 11 is provided at the center of the flange plate 10, and a plurality of screw holes 12 are also provided on the flange plate 10, and within the screw hole 12 The center of the hole 11 is centrally symmetrically distributed, and a welding boss 20 is arranged on one side of the flange 10. The inner diameter of the welding boss 20 is equal to the inner diameter of the inner hole 11, and the central axis of the welding boss 20 is the same as the inner diameter of the inner hole. The central axis of 11 coincides, and a plurality...
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The invention discloses a novel flat welding flange which comprises a flange plate. An inner hole is formed in the center position of the flange plate. The flange plate is provided with a plurality of screw holes which are distributed in a central symmetry mode with the circle enter of the inner hole as a center. A welding boss is arranged on one side of the flange plate. The inner diameter of the welding boss is identical to that of the inner hole. The center axis of the welding boss coincides with the center axis of the inner hole. A plurality of positioning holes are formed in the other face of the flange plate, and the depth of the positioning holes is smaller than the thickness of the flange plate. Each positioning hole is internally provided with an insertion column, and the positioning holes are distributed in a central symmetry mode with the circle center of the inner hole as a center. According to the novel flat welding flange, the side, for external connection, of the flange plate is provided with the multiple positioning holes, the insertion columns are arranged in the positioning holes correspondingly, two flange plates can be in butt joint and be fixed through engagement and fixing of the positioning holes and the insertion columns on the flange plates, thus, the flanges cannot shift relatively even when moving back and forth along the center axes, and airtightness of the flanges is improved.
Description
technical field [0001] The present invention relates to a flange, more precisely, it is a new flat welding flange. Background technique [0002] Flat welding flanges are generally referred to as flat plates for short, also known as lap welding flanges. The connection between the flat welding flange and the pipe is to insert the pipe into the inner hole of the flange to the appropriate position, and then weld it. Flat welded flanges are suitable for pipeline systems with relatively low pressure levels and less severe pressure fluctuations, vibrations and shocks. The advantage of the flat welding flange is that it is easier to center when the flat welding flange is welded and assembled, and the price is relatively cheap, so it has been widely used. The flanges of the flat welding flange are usually connected by screws, but due to the gap between the screw and the screw hole, when the flange needs to reciprocate along the central axis during use, the relative movement betwe...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F16L23/032F16L23/16
CPCF16L23/032F16L23/16F16L23/162
Inventor 沈长明缪素华朱美玲
Owner 江苏顺通管业有限公司