CN2556603Y

CN2556603Y - Flow switch

Info

Publication number: CN2556603Y
Application number: CN 02247907
Authority: CN
Inventors: 安海科; 王奎言
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-04
Filing date: 2002-08-04
Publication date: 2003-06-18
Anticipated expiration: 2012-08-04

Abstract

The utility model relates to a flow valve. A magnet or a silicon steel column is arranged on an inner pipeline of the flow valve and is capable of making a straight movement within a certain range in the pipeline. A dry reed pipe is arranged at the exterior of the flow valve. The magnet in the pipeline moves from the original place and gives a signal to the dry reed pipe when fluid flows through the pipeline of the flow valve, so as to control the work of other components of an electric appliance. The flow valve has simple design and can reduce production cost.

Description

A kind of flow switch

The present invention relates to a kind of flow switch, be meant the switch that provides an electric signal because of liquid in the pipeline or gas generation fluctuations in discharge especially.

Because the needs of family's ozone water apparatus and water heaters design need a flow control switch is installed in pipeline, when fetching boiling water tap, when promptly in the pipeline liquid flow being arranged, flow switch should provide an electric signal, impels water heater or ozone water apparatus work.Because the flow switch price that sell the market is more expensive, complex structure, and not corrosion-resistant, so ad hoc this money flow switch of having counted, to satisfy the needs that household appliances uses.

The purpose of this utility model provides a kind of cheap, simplicity of design, and corrosion resistant flow switch.

The purpose of this utility model is achieved in that the interior conduit at flow switch is provided with magnet or silicon steel post, magnet or silicon steel post can move as straight line in the certain limit in pipeline, the import of flow switch and endpiece all are with screw thread, and the pipeline outside of flow switch is equipped with a tongue tube.

The pipeline outside of flow switch or inside can also be equipped with second magnetic magnetic pole, are used for another magnet in the flow switching tube road is produced a reacting force or attractive force.This acting force of certain generation also can be installed a spring at pipe interior and realize.For preventing corrosion, one deck plastic wrapper can also be wrapped in the spring outside.

Be the stable work of dependable flow switch, the internal face of flow switch has a segment pipe face to be parallel to the central axis of pipeline at the water inlet pipe place, and the cross-sectional area of this segment pipe is less than the area that closes on the rising pipe proximal end.So, when flow reached certain value in the pipeline, the slide block of carry magnet can leave original position, and the tongue tube that makes the flow switch outside is from being closed into disconnection.When flow reduced, another piece magnet or spring can produce an acting force to slide block, make slide block get back to initial position, and at this moment, tongue tube is got back to closure state again.Thereby realize electric signal switching function to ozone water apparatus.

Because consider the corrosive power of Ozone Water or other liquid, magnet can be installed in the inside of plastic slide block, thereby reduce the destruction of fluid to magnet.

For the flow size in the accurate measuring channel, the flow switch pipeline also can be equipped with a branch of conductive coil outward.When liquid flow, owing to speed up, can produce acting force to slide block, if the interior installation of flow switch pipeline is the silicon steel post, silicon Steel post moves the inductance value that can influence conductive coil in conductive coil.Fast more when flow velocity, liquid is big more to the acting force of silicon Steel post, and silicon Steel post volume in coil is just more little, both overlapping more little of silicon Steel post and coil, and then the coupling inductance value of coil is just more little, thus the coupling value of detection telefault just can detect the size of flow.

For accurately detecting the size of flow, the design of the inner cavity chamber of flow switch also is different from Fig. 1, and its design concept is equal to the design with general flowmeter.The xsect of the inner chamber of flow switch is to become big gradually, is a batter post shape.

Owing to adopt such scheme, just can make one cheap, and cut function than the stable flow rate switch.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the sectional structural map of present embodiment.

1. magnet or silicon Steel post 2. tongue tubes 3. slide blocks 4. guide rails among the figure

5. magnet 6. structure stands

In Fig. 1,1 is the magnet circle, and is placed in the inside of slide block 3, and the corresponding outside of magnet circle is equipped with a tongue tube. when not having current, the magnet 5 of structure stand 6 inside can be to reacting force of generation of the diamagnetism magnetic pole in the slide block 3.Thereby guaranteeing is not having under the situation of current, and tongue tube can be closed.Certainly, we also can allow slide block 3 with self gravity fall and be supported on the bottom of flow switch.Equally, we also can install a turn and reach this purpose on guide rail 4.

In the time of current, current can allow slide block 3 move up, up to the following pipeline that leaves the flow switch bottom fully, because the internal face of flow switch is at the water inlet pipe place, both tongue tube places, pipe surface is parallel to the central axis of pipeline, and the cross-sectional area of this segment pipe is less than the area that closes on the rising pipe proximal end (cross-sectional area of inner cavity chamber), therefore slide block 3 has only fully and breaks away from herein, both whole inner cavity chamber that enters flow switch of slide block, and slide block just can reach balance.And at this time, slide block is also away from the initial position of tongue tube.Thereby make the work that tongue tube can be stable (obviously disconnect or closed, rather than tongue tube being closed for the moment, disconnects for the moment).

If a turn is installed on guide rail 4, then magnet 5 has not just needed.The drawback of turn is that easy corruption is touched, a rust.Certainly we also can adopt stainless spring to achieve the goal, or wrap one deck plastic tube on spring.The periphery of structure stand 6 is hollow, thereby can allow current pass through.

More than each parts can adopt the injection moulding mode to make, can lower cost.

Claims

1. flow switch, it is characterized in that: the interior conduit of flow switch has magnet or silicon steel post, and magnet or silicon steel post can move as straight line in the certain limit in pipeline, and the pipeline outside of flow switch is equipped with a tongue tube.

2. flow switch as claimed in claim 1 is characterized in that: the pipeline outside of flow switch or inside are equipped with second magnetic magnetic pole, are used for another magnet in the flow switching tube road is produced a reacting force or attractive force.

3. flow switch as claimed in claim 1 is characterized in that: the internal face of flow switch has a segment pipe face to be parallel to the central axis of pipeline at the water inlet pipe place, and the cross-sectional area of this segment pipe is less than the area that closes on the rising pipe proximal end.

4. flow switch as claimed in claim 3 is characterized in that: be equipped with a spring in the pipeline of flow switch.

5. flow switch as claimed in claim 1 is characterized in that: the flow switch pipeline is equipped with a branch of conductive coil outward.

6. as claim 1,2,3,4 or 5 described flow switches, it is characterized in that: the magnet in the flow switch is installed in the inside of plastic slide block.