TWD130230S1 - Flow switch - Google Patents

Abstract

[Use of the article] This invention is a "flow switch" that detects the flow of a pressure fluid such as water, performs an analog output corresponding to the flow, and determines the size of the aforementioned flow and a preset threshold value to perform a switch output. When in use, it is set on the left side of the roughly rectangular main body (refer to reference figures (1) and (2)), and the pressure fluid is introduced into the pressure fluid inlet with a roughly octagonal cross-section. After passing through the internal passage of this article, the pressure fluid is discharged from the pressure fluid outlet with a shape roughly the same as the aforementioned pressure fluid inlet. At this time, the flow of the pressure fluid is detected according to Faraday's law of electromagnetic induction using a coil and an electrode (not shown) set inside the article. A roughly rectangular interface portion is disposed on a portion of the upper side of the aforementioned main body. A roughly cylindrical and female input/output connector is disposed on the upper side of the aforementioned interface portion, in which a portion of the interface portion is buried, and an analog output corresponding to the aforementioned flow rate is performed from the input/output connector. Furthermore, the aforementioned flow rate is compared with the aforementioned threshold value by an unillustrated calculation device disposed inside the aforementioned main body, and a switch output corresponding to the comparison result is performed through the aforementioned input/output connector. A roughly circular display portion mounting portion is formed on a portion of the upper side of the aforementioned interface portion, on which a display portion capable of digitally displaying the aforementioned flow rate can be mounted. [Features of the creation] The present creation is related to the appearance design of a "flow switch". As shown in reference figures (1) and (2), the body of the present creation is roughly rectangular. A rectangular interface portion with upward protrusion and inward-contracted edges is formed on the top surface of the main body. A long arched circular input and output connector with arc protrusion is formed in the middle of the left side of the top surface of the interface portion. The left end of the connector is multi-layered, and the left side surface is arc-arranged with multiple small circles. A rectangular and triangular pointer is formed in parallel in front of the connector, and a circular display portion mounting portion is formed on the right end of the top surface of the interface portion. At the same time, a convex hexagonal pressure fluid inlet with inner wall thread is provided on the left side of the main body, and the right side of the main body also has the same convex hexagonal pressure fluid outlet. The front and rear surfaces and both side surfaces of the above-mentioned main body are formed with slightly concave surfaces. For example, reference figure (2) shows the cross-sectional state of the A-A section line of reference figure (1). The roughly horizontal parallel thin lines, roughly vertical parallel thin lines, roughly inclined parallel thin lines and roughly circular thin lines shown on the surface of each figure in the drawing are all shadow lines showing the shape of the three-dimensional surface. The above constitutes the overall shape of this creation, which is exquisite and unique, with novel and unique visual effects and creativity.