(2) technical background
Existing ultrasonic cavitron is connected to feed pipe on the work point of ultrasonic transducer, and when its work point was removed dental calculus, feed pipe was incessantly to the oral cavity jetting.The high-order water pot of the employing of some ultrasonic tooth equipment at present is as the water source, and also some is to be the water source with tap water directly, is connected to the break-make that electromagnetic valve supplies water with control.But with high-order water pot hydraulic pressure deficiency, and plug-in water pot is in outside the machine complete machine that cleans one's teeth the globality of a whole set of apparatus that cleans one's teeth of destruction.With tap water is the water source, and hydraulic pressure is easily excessive, also is difficult for adjusting, and the machine that cleans one's teeth will be connected with running water pipe when installing, and increases installation difficulty, and because of the restriction of running water pipe, the machine of cleaning one's teeth can not arbitrarily be moved and adjust the position.
(3) utility model content
The purpose of this utility model is the automatic water supply system of a kind of ultrasonic cavitron of design, can be installed in the machine of cleaning one's teeth, and guarantees the certain air pressure in the water storage bottle, and air pressure goes into to invest in the feed pipe of ultrasonic tooth cleaner handgrip with the hydraulic pressure in the water storage bottle automatically.
The automatic water supply system of the ultrasonic cavitron of this utility model design comprises water storage bottle, feed pipe, clean one's teeth the electromagnetic valve of control water system is arranged in the machine host, electromagnetic valve is connected with power supply through foot switch, feed pipe one end is connected with the electromagnetic valve water inlet end, water storage bottle has gastight lid, and the other end of feed pipe passes in the water of water-retention bottle cap insertion water storage bottle airtightly.The space is left in the top of institute's water storage in the water storage bottle.One end of the air supply pipe that air pump connects inserts in the water-retention bottle cap airtightly.Threeway is arranged on the air supply pipe, pick out the air pressure detector tube by threeway and be connected with Air-sensitive switch.Connect the gentle pumping source switch of air pump in the control circuit, Air-sensitive switch is connected in the control circuit, controls the break-make of this circuit.When air pressure is higher than P1, when promptly the air pressure in the water storage bottle reaches certain value, the Air-sensitive switch conducting, and air pressure when being lower than P2 Air-sensitive switch disconnect.
When the air pump on and off switch is connected, if air pressure is lower than P2, when promptly the air pressure in the water storage bottle is not enough to the hydraulic pressure in the bottle gone out, Air-sensitive switch disconnects, and control circuit is connected, air pump work, in water storage bottle, be pressed into compressed air, bottle internal gas pressure is raise, the water in the bottle is extruded from feed pipe, when air pressure reaches P1, be that air pressure in the water storage bottle is when reaching certain value, the Air-sensitive switch conducting, control circuit turn-offs, the air pump break-off.The air pump on and off switch is the ultrasonic cavitron total power switch.The doctor has also just connected the air pump power supply of this automatic water supply system when connection cleans one's teeth the machine main power, when water storage bottle internal gas pressure deficiency, air pump is promptly worked, and makes the water storage bottle internal gas pressure reach operating air pressure, prepares to supply water.
The foot switch of electromagnetic valve is controlled tooth cleaner handgrip and water system simultaneously, when the doctor opens the tooth cleaner handgrip switch and starts working, has also just connected feed pipe and has begun jetting, otherwise closed simultaneously, makes things convenient for doctor's operation.
This water system supplies water stable, and is simple in structure, is easy to realize, can be installed in the machine host casing that cleans one's teeth, and makes the machine good integrity that cleans one's teeth, and the machine that cleans one's teeth only need insert power supply when installing, and need not other water conservancy project fitting operation.The machine that cleans one's teeth also can be adjusted the position easily.This automatic water supply system is suitable for all types of ultrasonic cavitrons to be used.
(5) specific embodiment
The automatic water supply system embodiment of ultrasonic cavitron of the present utility model as shown in Figure 1, comprise water storage bottle 1, feed pipe 3, clean one's teeth the electromagnetic valve 4 of control water system is arranged in the machine host, electromagnetic valve 4 is connected with power supply through foot switch, feed pipe 3 one ends are connected with electromagnetic valve 4 water inlet ends, water storage bottle 1 has the water-retention bottle cap 2 that is tightly connected with it, and the other end of feed pipe 3 passes water-retention bottle cap 2 airtightly and inserts in the water of water storage bottle 1.The space is left in the top of institute's water storage in the water storage bottle 1.One end of the air supply pipe 5 that air pump 7 connects inserts in the water-retention bottle cap 2 airtightly.Be connected to threeway 6 on the air supply pipe 5, pick out air pressure detector tube 11 by threeway 6 and be connected with Air-sensitive switch 10.Connect air pump 7 gentle pumping source switches 8 on the control circuit 9, Air-sensitive switch 10 is connected in the control circuit 9, controls the break-make of this circuit 9.In water storage bottle 1, promptly air supply pipe 5 internal gas pressures are higher than P1, Air-sensitive switch 10 conductings, and control circuit 9 turn-offs; And this air pressure when being lower than P2 Air-sensitive switch 10 disconnect, control circuit 9 is connected.The air pump on and off switch 8 of control circuit 9 is the ultrasonic cavitron total power switch.
Electromagnetic valve 4 is connected with foot switch on the feed pipe 3, and the foot switch of electromagnetic valve 4 also is the switch of tooth cleaner handgrip.