Pressurized interface device with spiral bourdon tube
An interface device and helical wave technology, which are applied to measuring devices, testing/calibrating devices, and detecting fluid flow by measuring differential pressure, etc., can solve problems such as the unusable spiral Bourdon tube, the scrapping of the spiral Bourdon tube and the base, etc. To achieve the effect of reducing production costs and improving the qualification rate
Inactive Publication Date: 2013-09-18
WUHAN AVIATION INSTR
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[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0015] Please refer to the attached image 3 , a pressurized interface device for a spiral Bourdon tube, comprising an adapter (1), an adapter cap (2), a support (3), a rubber pad (4), the adapter cap (2) is a cavity structure, One end is provided with an internal thread, the other end is a light hole, and the light hole part is connected with the internal thread part with steps; the adapter (1) is installed in the adapter cap (2) through threads, and the light hole part is provided with a rubber pad (4) and stainless steel gasket (5), the step is provided with a support (3), and the two ends are respectively matched with the adapter (1) and the rubber pad (4); the adapter (1), the adapter cap (2), the support (3), Rubber pads (4) Stainless steel gaskets (5) are all provided with through holes in the center, located on a straight line.
[0016] When using, ...
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The invention relates to a pressurized interface device with a spiral bourdon tube for an air pressure gauge, which comprises an adapter (1), an adapter cap (2), a support (3) and a rubber cushion (4), wherein the adapter cap (2) adopts a cavity structure, internal threads are arranged at one end of the adapter cap (2), and an unthreaded hole is formed in the other end of the adapter cap (2), and a step is arranged at the joint of an unthreaded hole part and internal thread parts; the adapter (1) is installed in the adapter cap (2) through threads; the unthreaded hole part is provided with the rubber cushion (4) and a stainless steel gasket (5); the support (3) is arranged at the step, and the two end surfaces of the support (3) are respectively matched with the adapter (1) and the rubber cushion (4); and through holes are formed in the centers of the adapter (1), the adapter cap (2), the support (3), the rubber cushion (4) and the stainless steel gasket (5) and are positioned in a straight line. The pressurized interface device has the benefits that as the pressurized interface device is sealed by extruding a rubber part, performance test or aging stability treatment carried out on the spiral bourdon tube can be realized before a screw and a base are welded, so that the percent of pass of the spiral bourdon tube is improved, and the production cost is reduced.
Description
technical field [0001] The invention belongs to the production and test technology of aviation pressure gauges, and relates to a pressure interface device of a spiral Bourdon tube for aviation pressure gauges. Background technique [0002] Spiral Bourdon tube is a commonly used pressure sensitive part of aviation pressure gauge, as shown in the attached manual figure 1 shown. The spiral Bourdon tube is processed through the processes of flattening, bending and aging of the elastic alloy capillary. By applying pressure to the capillary part (11) of the spiral Bourdon tube, the spiral part (12) is deformed to drive the pointer (13 ) to indicate pressure. In the initial stage of processing the spiral Bourdon tube, the initial angle and the range of the rotation angle of the Bourdon tube will gradually change due to the elasticity and the rebound characteristics of gold after the bend is formed, which will inevitably cause some spiral Bourdon tubes with unqualified performance...
Claims
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Login to View More IPC IPC(8): G01F25/00G01F1/38
Inventor 裴鹤岩王学锋曾迎春徐阳辉赖念华肖建萍
Owner WUHAN AVIATION INSTR