CN2798057Y

CN2798057Y - Automatic water return alarm for solar water heater

Info

Publication number: CN2798057Y
Application number: CNU200520072217XU
Authority: CN
Inventors: 曹雷
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-30
Filing date: 2005-05-30
Publication date: 2006-07-19
Anticipated expiration: 2015-05-30

Abstract

The utility model discloses a water return automatic alarm device of a solar water heater, which belongs to the technical field of a solar water heater. The utility model comprises an alarm circuit and a switch-in pipe which is in vertical arrangement, wherein the upper end of the switch-in pipe is opened, and the lower end of the switch-in pipe is closed; the closed end of the switch-in pipe is provided with an orifice, the side surface of the switch-in pipe is provided with a water outlet, and the inner bottom part of the switch-in pipe is provided with a float; the float and the switch-in pipe are provided with a trigger mechanism which is capable of triggering the on-off of the alarm circuit at the time of the rising of the float. When the utility model is in operation, the switch-in pipe is communicated with a water return pipe of a solar water heater; when the solar water heater is filled with water, return water enters the switch-in pipe to enable the float to float upwards, and the trigger mechanism enables the alarm circuit to be switched on to send out alarm signal such as sound, or light, etc. to remind a person to close a water supply valve of the solar water heater. The utility model which has the advantages of reasonable structure, easy fabrication, low cost, convenient operation and flexible action can send out an acoustic-optical alarm to remind the person to timely close the water supply valve, and the phenomena such as the waste of water resources, etc. can be prevented from occurring.

Description

A kind of solar water heater backwater autoalarm

Technical field

The utility model relates to a kind of solar water heater, particularly the backwater warning device of solar water heater.

Background technology

In the prior art, a kind of solar water heater backwater alarm is arranged, mainly form by access tube with by the voice alarm circuit that contact switch, power supply, voice integrated package and loudspeaker constitute; The upper and lower side of access tube is arranged with entery and delivery port, is provided with depression bar in the access tube, and the sidewall of access tube is passed in a rotating shaft, and its inside and outside two ends link to each other with an end of compressing tablet, depression bar respectively regularly; The other end below of depression bar is provided with and is in the contact switch of often opening shape, and this end also links to each other with an end of extension spring, and the other end of extension spring is fixed on the access tube outside.During use, access tube is connected with the return pipe of solar water heater, when the solar water heater full water, there is water to pass through in the return pipe, backwater impacts on compressing tablet, compressing tablet overcomes the spring force effect, contact with two contacts of contact switch, make the warning circuit conducting, send sound and light alarm, remind the people to close the water supply valve of solar water heater, can reduce the waste of water resource.Its weak point is: when just reaching water owing to solar water heater, the water of backflow is less, is difficult to make compressing tablet to overcome the tension force of spring, could realize when current are big, and has caused bigger water resource waste this moment; Therefore, the action sensitivity of prior art is not enough, can not realize the requirement that a full water is just reported to the police.

The utility model content

The purpose of this utility model provides a kind of solar water heater backwater autoalarm, and it is active in one's movements, and uses reliable.

The purpose of this utility model is achieved in that a kind of solar water heater backwater autoalarm, comprise a warning circuit and the upright access tube that is provided with, the access tube upper end open, described access tube lower end closed, the blind end of access tube is provided with restriction, the side of access tube is provided with water delivering orifice, and the inner bottom part of access tube is provided with float, and float and access tube are provided with the trigger mechanism that can trigger the warning circuit break-make when float rises.

During the utility model work, access tube is connected the return pipe of solar water heater, when the solar water heater full water, and the recirculatory pipe water outlet, enter in the access tube, because throttling restriction water in the future flows away immediately, therefore, the water level of access tube inner bottom part rises gradually, make the float come-up, trigger mechanism is connected warning circuit, sounds or alerting signal such as light, reminds the people to close the water supply valve of solar water heater.When discharge was big, unnecessary water directly flowed out from water delivering orifice, and after the water supply valve of solar water heater was closed, recirculation water was cut off the water supply, and the water in the access tube slowly flows away from restriction, and float descends, the warning circuit open circuit.The utility model is rational in infrastructure, be easy to make, with low cost, easy to use, be active in one's movements, can send acousto-optic warning, reminds people is in time closed water supply valve, avoids causing the generation of phenomenons such as water resource waste.

Trigger mechanism can have various ways, one of them is: described trigger mechanism comprises the conductive metal sheet that is arranged on the float upper surface, be positioned on the access tube be provided with directly over the conductive metal sheet two be horizontally disposed with and isolate mutually electrode slice, described electrode slice series connection inserts in the warning circuit.Wherein two be: described trigger mechanism comprises the magnet that is arranged on the float, and the top that access tube is positioned at the magnet horizontal level outward is provided with a magnetic switch, and two electrode arrays of described magnetic switch connect in the warning circuit.Above-mentioned two kinds of schemes all have advantage simple in structure, with low cost, and scheme two is not subjected to aqueous corrosion because circuit part does not contact with water, and dependability is higher.

Description of drawings

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

Fig. 2 is that the A-A of Fig. 1 is to view;

Fig. 3 is another structural representation of the utility model;

Wherein, 1 restriction, 2 blind ends, 3 floats, 4 conductive metal sheets, 5 water delivering orifices, 6 access tubes, 7 electrode slices, 8 warning circuits, 9 magnet, 10 magnetic switches, 11 gag lever posts.

Embodiment

Embodiment 1

As Fig. 1,2, be solar water heater backwater autoalarm, comprise a warning circuit 8 and the upright access tube 6 that is provided with, access tube 6 upper end open, described access tube 6 lower end closed, the blind end 2 of access tube 6 is provided with restriction 1, and the side of access tube 6 is provided with water delivering orifice 5, the inner bottom part of access tube 6 is provided with float 3, and float 3 and access tube 6 are provided with the trigger mechanism that can trigger warning circuit 8 break-makes when float 3 rises; Described trigger mechanism comprises the conductive metal sheet that is arranged on float 3 upper surfaces, be positioned on the access tube 6 be provided with directly over the conductive metal sheet two be horizontally disposed with and isolate mutually 7 series connection of electrode slice 7, two electrode slices insert in the warning circuits 8.

During work, access tube 6 is connected the return pipe of solar water heater, when solar water heater water is full, recirculation water enters in the access tube 6, because restriction 1 can not be let out away recirculation water very soon, so float 3 constantly rises, conductive metal sheet 4 is contacted simultaneously with two electrode slices 7, sound and light alarm is sent in warning circuit 8 conductings, reminds the people to close the water supply valve of solar water heater; When discharge was big, recirculation water flowed away from water delivering orifice 5, and after the water supply valve of solar water heater was closed, the residual water in the access tube 6 slowly flowed away from restriction 1, and float 3 slowly resets.

Embodiment 2

As shown in Figure 3, be solar water heater backwater autoalarm, comprise a warning circuit 8 and the upright access tube 6 that is provided with, access tube 6 upper end open, described access tube 6 lower end closed, the blind end 2 of access tube 6 is provided with restriction 1, and the side of access tube 6 is provided with water delivering orifice 5, the inner bottom part of access tube 6 is provided with float 3, and float 3 and access tube 6 are provided with the trigger mechanism that can trigger warning circuit 8 break-makes when float 3 rises; The above trigger mechanism comprises the magnet 9 that is arranged on the float 3, the access tube 6 outer tops that are positioned at magnet 9 horizontal levels are provided with a magnetic switch 10, two electrode arrays of described magnetic switch 10 connect in the warning circuit 8, float 3 tops are provided with gag lever post 11, too much cause and can not report to the police to prevent float 3 come-ups.

During work, access tube 6 is connected the return pipe of solar water heater, when solar water heater water was full, recirculation water entered in the access tube 6, because restriction 1 can not be let out away recirculation water very soon, therefore float 3 constantly rises, when magnetic patch 9 rises to magnetic switch 10 positions, magnetic switch 10 actions, warning circuit 8 conductings, send sound and light alarm, remind the people to close the water supply valve of solar water heater; When discharge was big, recirculation water flowed away from water delivering orifice 5, and after the water supply valve of solar water heater was closed, the residual water in the access tube 6 slowly flowed away from restriction 1, and float 3 slowly resets.

Claims

1, a kind of solar water heater backwater autoalarm, comprise a warning circuit and the upright access tube that is provided with, the access tube upper end open, it is characterized in that: described access tube lower end closed, the blind end of access tube is provided with restriction, the side of access tube is provided with water delivering orifice, and the inner bottom part of access tube is provided with float, and float and access tube are provided with the trigger mechanism that can trigger the warning circuit break-make when float rises.

2, a kind of solar water heater backwater autoalarm according to claim 1, it is characterized in that: described trigger mechanism comprises the conductive metal sheet that is arranged on the float upper surface, be positioned on the access tube be provided with directly over the conductive metal sheet two be horizontally disposed with and isolate mutually electrode slice, described electrode slice series connection inserts in the warning circuit.

3, a kind of solar water heater backwater autoalarm according to claim 1, it is characterized in that: described trigger mechanism comprises the magnet that is arranged on the float, the top that access tube is positioned at the magnet horizontal level outward is provided with a magnetic switch, and two electrode arrays of described magnetic switch connect in the warning circuit.