CN2249447Y

CN2249447Y - Automatic switch for water pump

Info

Publication number: CN2249447Y
Application number: CN 96236853
Authority: CN
Inventors: 曹辉
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-04-26
Filing date: 1996-04-26
Publication date: 1997-03-12
Anticipated expiration: 2006-04-26

Abstract

The utility model provides an automatic switch for a water pump with an ingenious external opening and convenient installation and operation. The utility model is characterized in that a contactless method controlled by a magnet is adopted, and an arc valve plate is arranged inside the utility model. When water flow drives the arc valve plate, magnetic field is out of balances, which causes the dry reed pipe to close and switch on a controlled silicon, and causes the water pump be operated. When water flow is not available, a return spring cause the arc valve plate to reset, the magnetic field restores the balance, the dry reed pipe is opened, the controlled silicon is switched off, and the water pump stops working.

Description

The water pump automatic switch

The utility model relates to pump switch, particularly leans on the water pump automatic switch of magnetic control.

Pump switch of the prior art is the mechanical stroke switch, starts by catch bar, requires bigger hydraulic pressure to start; Because mechanical contact is arranged, so mechanical loss is big; Because of being sealed with problem, easily play spark, so useful life is short.

The purpose of this utility model is intended to overcome the deficiencies in the prior art and a kind of no mechanical contact friction is provided, and it is low to start hydraulic pressure, and sensitive reliable, profile is small and exquisite, water pump automatic switch easy to install.

The purpose of this utility model is achieved in that

A kind of water pump automatic switch, form by main body base, back-moving spring, sealing ring, arc valve block, magnet, dry type tongue spring tube (being commonly called as tongue tube), controllable silicon, resistance and loam cake, it is characterized in that: an end of arc valve block is being fixed magnet, back-moving spring heads on the arc valve block, tongue tube places between two blocks of magnet, link with resistance and controllable silicon, the silicon controlled in addition other end of two contacts and water pump and resistance links.

---described two blocks of magnet head on the arc valve block that has magnet at the anhydrous back-moving spring of flowing through during pump switch and reset and cause the magnetic field balance, and this moment, tongue tube was in opening, and controllable silicon is open close.

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1 is the utility model structural representation, among the figure, and 1. main body base, 2. back-moving spring, 3. sealing ring, 4. arc valve block, 5. magnet, 6. dry type tongue spring tube (tongue tube), 7. magnet, 8. controllable silicon, 9. resistance.

Fig. 2 is the schematic diagram of arc valve block,

Fig. 3 is a loam cake schematic diagram of the present utility model,

Fig. 4 is circuit theory diagrams of the present utility model, and GA is a dry type tongue spring tube among the figure, and BCR is a bidirectional triode thyristor, and R is a fixed carbon resister, and M is a water pump.

Operation principle of the present utility model is such: when tap is opened, current are pushed the arc valve block open, make original maintenance tongue tube be in the magnetic field disequilibrium of opening, make the tongue tube GA closure among Fig. 4, trigger bidirectional triode thyristor BCR conducting, thereby make water pump operation; When tap is closed, back-moving spring resets the arc valve block, and magnetic field restores balance, and tongue tube is opened, and water pump is out of service.

Because the utility model adopts the arc valve chip architecture, even very weak current also can promote valve block, make magnetic field unbalance, thereby the conducting controllable silicon brings into operation water pump, so sensitivity is very high; In addition because the wearing and tearing of no mechanical contact, thus be difficult for spark, thus prolonged useful life.The utility model profile is small and exquisite, and is easy to install, also do not have sealing problem, isolated fully with circuit, by magnetic sensing control switch, so reliability, fail safe strengthen greatly.

Claims

1, a kind of water pump automatic switch, form by main body base, back-moving spring, sealing ring, arc valve block, magnet, dry type tongue spring tube, controllable silicon, resistance and loam cake, it is characterized in that: an end of arc valve block is being fixed magnet, back-moving spring heads on the arc valve block, tongue tube places between two blocks of magnet, link with resistance and controllable silicon, the silicon controlled in addition other end of two contacts and water pump and resistance links.

2, water pump automatic switch according to claim 1, it is characterized in that described two blocks of magnet head on the arc valve block that has magnet at the anhydrous back-moving spring of flowing through during pump switch and reset and cause the magnetic field balance, this moment, tongue tube was in opening, and controllable silicon is open close.