CN200969324Y

CN200969324Y - Magnetic control switch

Info

Publication number: CN200969324Y
Application number: CN 200620159171
Authority: CN
Inventors: 金一诺
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-21
Filing date: 2006-11-21
Publication date: 2007-10-31
Anticipated expiration: 2016-11-21

Abstract

A magnetic control switch, consisting of a casing, a magnetic ring, a floating block, a heavy hammer, a stem spring tube, a connecting line and a hook. One end of the casing is arranged with the heavy hammer, the other end with the hook and the middle part with the magnetic ring and the floating block, which is fixed with the magnetic ring. The casing on one end of the heavy hammer is arranged with the stem spring tube therein, the wiring end of which is welded with the connecting line leading out of the casing. The utility model has benefical effects of as follow: the contact of the magnetic control switch, which is sealed in the glass tube and the casing, is not not prone to corrosion; the on and off of the contact is contolled by magnetic force free from the influence of liquid scale so that the switch is of high sensitivity, high accuracy rate, and long service life.

Description

A kind of magnetic switch

Technical field

The utility model belongs to the liquid automatic control field, specially refers to a kind of magnetic switch.

Background technology

In liquid automatic control, regular tap is because the contact is exposed in the environment for use, and the switch contact surface easily is corroded and causes liquid level out of control; In addition, the control of present most high water tanks is adopted the mechanical type ball-cock assembly or is controlled liquid level by sensor signal, and its control mode is often because of valve gets rusty, wearing and tearing or sensor surface fouling cause water level out of control.

Summary of the invention

The purpose of this utility model: overcome that the switch contact surface is corroded or ball-cock assembly gets rusty, wearing and tearing or sensor surface fouling and cause liquid level deficiency out of control, a kind of magnetic switch that is subjected to environment for use to influence less liquid level control is provided.

The technical solution of the utility model: magnetic switch is made up of sleeve pipe, magnet ring, floating block, weight, tongue tube, connecting line, hook.With one section diameter less than 10 millimeters nonmagnetic substance pipe sleeve pipe as tongue tube, earlier an end of sleeve pipe is sealed, around the outer wall of bobbin seal end, be provided with the weight of definite shape, in the sealed end pipe, insert be welded with connecting line often open tongue tube, with temperature resistant encapsulation glue tongue tube is sealed in the sleeve pipe again, and outside the connecting line extraction tube; Tongue tube inserts the degree of depth of sleeve pipe, in the time of should being controlled at magnet ring near tongue tube, makes the closing of contact in the tongue tube, and magnet ring is during away from tongue tube, makes that the contact disconnects in the tongue tube.Make middle position with the density materials with smaller and be provided with the floating block that circular hole, aperture are slightly larger than the cover external diameter of pipe, scraping out the groove that diameter is equal to the magnet ring external diameter around the floating block central circular hole top, the magnet ring of annular distance slightly larger in diameter in the cover external diameter of pipe embedded in the floating block groove, and floating block, magnet ring together be enclosed within on the sleeve pipe that is provided with weight, floating block can move up and down along sleeve pipe.When floating block contacted with weight, the contact was in the magnetic force control range of magnet ring in the tongue tube, and closure is magnetized; When floating block come-up when making tongue tube exceed the magnetic force control range of magnet ring, the contact disconnects in the tongue tube.

When magnetic switch uses, magnetic switch is fixed on desire control liquid level place with hook, and in the control circuit of the electromagnetically operated valve of tongue tube connecting line access feed liquor pipeline.When liquid level was lower than setting control liquid level, the magnet ring in the floating block was nearer from tongue tube, because of the magnetization of magnet ring, made the closing of contact in the tongue tube, and the electromagnetically operated valve energising is opened, the container feed liquor, and at the same time, floating block floats, and weight is non-rising; When floating block come-up when controlling liquid level, the magnet ring in the floating block is far away from tongue tube, reed switch contact disconnects, closed electromagnetic valve, container stops feed liquor, thereby reaches the purpose of control liquid level.

In the technique scheme, sleeve pipe is selected copper pipe or stainless steel tube or heat-resisting, corrosion resistant plastic tube for use; Floating block is selected the plastic foam piece for use or is adopted wooden unit through water-proofing treatment; Magnet ring adopts magnet steel or magnetite; The weight employing is now mixed concrete and is made or adopt other corrosion resistant metal pieces, unit of plastic.

The beneficial effects of the utility model: the contact of magnetic switch is sealed in glass tube and the sleeve pipe, and the contact is not perishable; The contact open and close is controlled by magnetic force, therefore is not subjected to the influence of liquid dirt, sensitivity, accuracy rate height, long service life.

Description of drawings

Fig. 1 is the structural upright schematic diagram of the utility model and embodiment.

Fig. 2 is Figure 1A-A profile.

Among the figure, 1. hook, 2. connecting line, 3. sleeve pipe, 4. floating block, 5. magnet ring, 6. tongue tube, 7. weight.

Embodiment

Among the figure, magnetic switch is made up of sleeve pipe 3, magnet ring 5, floating block 4, weight 7, tongue tube 6, connecting line 2, hook 1.Get one section of the copper pipe of 10 millimeters of long 200 millimeters, diameters, copper pipe one end sealing back is inserted to irritate to be had in the cylindrical die of now mixing concrete, and concrete solidifies rear sleeve 3, weight 7 is fixed together, wherein, and 50 millimeters of weight 7 diameters, 50 millimeters of height; The bottom that the tongue tube 6 that is provided with connecting line 2 inserts sleeve pipes 3, when insertion depth should be controlled at magnet ring 5 near tongue tube 6, make the closings of contact in the tongue tube 6; Magnet ring 5 is during away from tongue tube 6, makes that contacts disconnect in the tongue tube 6.Get thickness and be 30 millimeters, diameter and be 100 millimeters polyurethane foam and make floating block 4, boring diameters in floating block 4 central authorities is 14 millimeters circular hole, scraping out diameter around the circular hole top is that 30 millimeters, the degree of depth are 10 millimeters groove, is external diameter that 30 millimeters, annular distance diameter are that 12 millimeters, thickness are that 10 millimeters high strength annular magnetic steel 5 is fixed in the groove of floating block 4, magnet steel 5, floating block 4 together are enclosed within on the sleeve pipe 3, establish hook 1 on the top of sleeve pipe 3.

Being controlled to be example with high water tank is described as follows: with hook 1 magnetic switch is fixed on liquid level control height, and the connecting line 2 of tongue tube 6 is connected with the control circuit of electromagnetically operated valve in the feed liquor pipeline.When liquid level was lower than setting control liquid level, the magnet ring 5 in the floating block 4 was nearer from tongue tube 6, because of the magnetization of magnet ring 5, made the closing of contact in the tongue tube 6, and the container feed liquor is opened in the electromagnetically operated valve energising; Simultaneously, floating block 4 come-up, weight 7 is non-rising, and floating block 4 come-ups are when controlling liquid level, and the magnet ring 5 in the floating block 4 is far away from tongue tube 6, and tongue tube 6 contacts disconnect, closed electromagnetic valve, container stops feed liquor, thereby reaches the purpose of control liquid level.

Claims

1, a kind of magnetic switch is characterized in that: it is made up of sleeve pipe, magnet ring, floating block, weight, tongue tube, connecting line, hook, and wherein, an end of sleeve pipe establishes that weight, the other end are established hook, interlude is with magnet ring and floating block, and magnet ring and floating block are fixed; Be provided with tongue tube in the sleeve pipe of weight end, the tongue tube terminals are welded with connecting line, outside the connecting line extraction tube.

2, a kind of magnetic switch according to claim 1 is characterized in that: sleeve pipe is selected copper pipe or stainless steel tube or heat-resisting, corrosion resistant plastic tube for use.

3, a kind of magnetic switch according to claim 1 is characterized in that: floating block is selected the plastic foam piece for use or is adopted wooden unit through water-proofing treatment.

4, a kind of magnetic switch according to claim 1 is characterized in that: magnet ring adopts magnet steel or magnetite.

5, a kind of magnetic switch according to claim 1 is characterized in that: the weight employing is now mixed concrete and is made or adopt other corrosion resistant metal pieces, unit of plastic.