CN2873183Y

CN2873183Y - Massage bath tub with anti-hair sucking device

Info

Publication number: CN2873183Y
Application number: CN 200520121623
Authority: CN
Inventors: 曾荣虔
Original assignee: GIESSDORF PLUMBING Inc
Current assignee: GIESSDORF PLUMBING Inc
Priority date: 2005-12-31
Filing date: 2005-12-31
Publication date: 2007-02-28
Anticipated expiration: 2015-12-31

Abstract

The utility model discloses a massage bathtub with an anti-hair-inhaling device consisting of a bathtub body and a water-spraying massager. The water-spraying massager comprises a water pump, a discharge jet arranged on the bathtub body and a return hole with a screen. The discharge jet and the return hole are connected with the water pump by pipes. The water pump is connected with an anti-hair-inhaling device consisting of a power circuit, a microprocessor, a current-detecting circuit and a driving circuit. When hair or other sundries blocks the screen, input current of the water pump motor of the water-spraying massage bathtub accordingly decreases. The current signal control the driving circuit through the microprocessor to cut the power line of the water pump motor to stop the water pump motor and suction of the screen disappears to release hair or other sundries. What is more important is that the utility model can prevent hair of users from inhaling of the screen which avoids the situation that hair is torn by suction or even inhaled to make the head dipped in water and asphyxiate one to die.

Description

A kind of message bathtub that has the anti-hair sucking device

Technical field

This utility model relates to a kind of bathtub.Especially a kind of message bathtub that has the anti-hair sucking device.

Background technology

Present water spraying massage bathtub, generally be to use by motor-driven water pump as power source, water pump by the water in the porous drainage screen inspiration bathtub after water pump pressurization again from the nozzle of bathtub inner surface opening, reaching the effect of massage user with certain dynamics ejection, the water in the bathtub can be recycled through water pump.The drainage screen of water pump all is positioned at next depthkeeping degree of the bathtub water surface, because the more little suction of water inlet sectional area is big more, thereby the water during pump working in the bathtub flows to drainage screen fast and produces very big suction on the drainage screen surface, this moment user hair, particularly long hair can be filtered near drainage screen that net tightly holds and inhale tight more more, gently then the drainage screen strong suction can be broken hair, and is heavy then suction user head is under water can not breathe the generation life danger because of breaking away from.Even body muscle is filtered net and holds also and can cause the pain discomfort.Be head it off, more domestic producers adopt and strengthen drainage screen water inlet area even two drainage screens are installed in a water spraying massage bathtub, though some effect, but can not eliminate danger fully, influence water spraying massage bathtub product appearance simultaneously, and on the water spraying massage bathtub of small size, be subjected to spatial restriction and inapplicable.The way of more external producers is that the check valve of an end and air communication is installed on the inlet channel of water pump, vacuum after the drainage screen of pump water inlet road end holds hair in the pipeline increases, pressure reduces, atmospheric pressure backs down the preloading spring in the check valve, the air admission pipeline makes and is full of air in the centrifugal water pump, water pump idle running is not in addition eliminated the effect that suction can play anti-hair sucking thereby drainage screen does not absorb water.But adopt check valve to advance air and have following problem, the one, response speed is fast inadequately, the 2nd, the air admission water pump causes that easily the impeller cavitation erosion reduces service life, the 3rd, check valve is the higher parts of precision, metalworks such as its its medi-spring that ducks in drink for a long time get rusty easily and come into force, incrustation scale may make the movable part adhesion that check valve was lost efficacy and not have the effect of anti-hair sucking, the 4th, suction disappears after the air admission water pump makes impeller idle running, draw back part hair from drainage screen this moment, drainage screen can produce suction from gap suction again, if the user action inadequately rapidly hair break away from fully drainage screen then again can to drainage screen not hold once more produce dangerous.

Summary of the invention

The purpose of this utility model is to provide a kind of message bathtub that has the anti-hair sucking device, and this device uses electronically controlled form, is swift in response, reliably, has effectively solved the suction question topic of message bathtub.

This utility model is to realize above-mentioned purpose like this:

A kind of message bathtub that has the anti-hair sucking device, comprise bathtub main body and water spraying massage equipment, water spraying massage equipment is made up of water pump, the water return outlet that is installed in the nozzle on the bathtub main body and has a drainage screen, nozzle has pipeline to be connected with water pump with water return outlet, it is characterized in that water pump is connected with the anti-hair sucking device, it comprises power circuit, microprocessor, current detection circuit and drive circuit, and current detection circuit is connected with the microprocessor input, and output end of microprocessor is connected with drive circuit.

The beneficial effects of the utility model are: when foreign material such as hair stop up drainage screen, corresponding the reducing of message bathtub pump motor input current, after the anti-hair sucking device detects this current signal, cut off the supply line of pump motor by the action of microprocessor control drive circuit, make the pump motor stall, thereby the suction of drainage screen disappears thereupon and decontrols the foreign material such as hair of absorption, the more important thing is that can prevent that the user excuse from sending out is filtered that net tightly holds and inhales tight more more, avoided gently then suction to break hair, heavy then because of break away from suction do not make head under water can not breathe produce life danger may; Because this device uses electronically controlled form, be swift in response, more reliable.

Description of drawings

Below in conjunction with drawings and Examples this utility model is further specified:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the theory diagram of anti-hair sucking device;

Fig. 3 is the circuit theory diagrams of anti-hair sucking device.

The specific embodiment

With reference to Fig. 1, a kind of message bathtub that has the anti-hair sucking device, comprise bathtub main body 1 and water spraying massage equipment, water spraying massage equipment is made up of water pump 2, the water return outlet 5 that is installed in the nozzle 3 on the bathtub main body 1 and has a drainage screen 4, nozzle 3 has pipeline 7 to be connected with water pump 2 with water return outlet 5, and water pump 2 is connected with anti-hair sucking device 6.

With reference to Fig. 2, Fig. 3, the anti-hair sucking device comprises power circuit U1, microprocessor IC1, current detection circuit U2 and drive circuit U3, and current detection circuit U2 is connected with microprocessor IC1 input, and microprocessor IC1 outfan is connected with drive circuit U3.Wherein current detection circuit U2 comprises and transformator T2, and the primary coil of transformator T2 is connected with pump motor M, and parallel connection of secondary windings resistance R 1 is connected with microprocessor IC1 input behind the terminating diode D5 of resistance R 1.Drive circuit U3 comprises photoelectrical coupler O1, controllable silicon Q1 and peripheral cell composition thereof, be connected with microprocessor IC1 outfan behind the input series resistance R3 of photoelectrical coupler O1, be connected with pump motor M behind the series resistance R4 of the outfan of photoelectrical coupler O1, another outfan is connected with controllable silicon Q1 control end, and controllable silicon Q1 connects with pump motor M.

The ultimate principle of anti-hair sucking device 6 is that the electric current that detects pump motor M changes the variation of back acquisition correspondent voltage, and this voltage and reference voltage V compare, and judge whether to occur inhaling to find to resemble, so this reference power supply V are connected with the input of microprocessor IC1.

When normal duty, water pump 2 full power operations, its input current is stabilized in a high value.The voltage and the reference voltage V that obtain on the resistance R 1 of current detection circuit U2 are suitable, and microprocessor IC1 drives the photoelectrical coupler O1 conducting among the drive circuit U3, and controllable silicon Q1 is communicated with, and water pump 2 keeps running well.When foreign material such as hair stopped up drainage screen 4, the flow of inlet water of water pump 2 reduced, and caused the shaft power of motor M to reduce, and then corresponding power input to machine also reduces, and because of supply voltage is constant, causes that just the input current of motor M reduces.The voltage that obtain this moment on resistance R 1 reduces, when this voltage ratio reference voltage V hour, the signal that microprocessor IC1 cuts off photoelectrical coupler O1 is closed it, controllable silicon Q1 signal out of hand and ending, water pump 2 shuts down, thereby the suction of drainage screen 4 disappears thereupon and decontrols the foreign material such as hair of absorption like this, has effectively solved the suction question topic of message bathtub.Because this device uses electronically controlled form, be swift in response, more reliable.

Claims

1. message bathtub that has the anti-hair sucking device, comprise bathtub main body (1) and water spraying massage equipment, water spraying massage equipment is by water pump (2), the water return outlet (5) that is installed in the nozzle (3) on the bathtub main body (1) and has drainage screen (4) is formed, nozzle (3) has pipeline (7) to be connected with water pump (2) with water return outlet (5), it is characterized in that water pump (2) is connected with anti-hair sucking device (6), it comprises power circuit (U1), microprocessor (IC1), current detection circuit (U2) and drive circuit (U3), current detection circuit (U2) is connected with microprocessor (IC1) input, and microprocessor (IC1) outfan is connected with drive circuit (U3).

2. a kind of message bathtub that has the anti-hair sucking device according to claim 1, it is characterized in that current detection circuit (U2) comprises and transformator (T2), the primary coil of transformator (T2) is connected with pump motor (M), parallel connection of secondary windings resistance (R1), a terminating diode (D5) back of resistance (R1) is connected with microprocessor (IC1) input.

3. a kind of message bathtub that has the anti-hair sucking device according to claim 1, it is characterized in that drive circuit (U3) comprises photoelectrical coupler (O1), controllable silicon (Q1) and peripheral cell composition thereof, input series resistance (R3) back of photoelectrical coupler (O1) is connected with microprocessor (IC1) outfan, one outfan series resistance (R4) back of photoelectrical coupler (O1) is connected with pump motor (M), another outfan is connected with controllable silicon (Q1) control end, and controllable silicon (Q1) is connected with pump motor (M).

4. a kind of message bathtub that has the anti-hair sucking device according to claim 1 is characterized in that the input (IC1) of microprocessor is connected with reference power supply (V).