CN201074917Y - Affusion automatic anti-overflow equipment of solar water heater - Google Patents

Abstract

The utility model belongs to the heating water level control field, which more particularly relates to a water-feeding anti-overflow control of a solar energy water heater. The utility model is characterized in that a dynamic-closing (normal-open) switch controlled by a floater in a water connection pipe and a dynamic-cutting (normal-close) switch controlled by a water valve gear are connected in series on a motor circuit; a motor shaft gear is meshed with the water valve gear. The utility model has the advantages that the structure is simple; the manufacturing process is easy; the installation is convenient; the manufacturing cost is low and the utility model is convenient and applicable.

Description

Automatic flood prevention device for solar water heater

technical field

The utility model belongs to the field of heating water level control, and in particular relates to the water injection and overflow prevention control of solar water heaters.

technical background

At present, the automatic water injection of solar water heaters is mostly the water level control method. Although the water tank can be automatically controlled and will not overflow when it is full, but when the water level of the water tank drops during the shower, the water filling function is automatically activated to continuously inject cold water into the water tank, causing the water temperature to drop suddenly, and the shower is abandoned halfway. In view of this, most consumers do not install the automatic controller. When filling water into the water tank, they are manually supervised. Once they see water coming out of the overflow pipe, they immediately run to close the water valve; trouble.

Contents of the invention

The purpose of the utility model is to provide an automatic overflow prevention device for solar water heaters, which can automatically close the water valve when the water is full, and will not inject cold water into the water tank when taking a shower. The defect of the current automatic water injection control device for solar water heaters is overcome, and the inconvenience and worry of manual care are eliminated.

The technical scheme of the utility model is: it is composed of an overflow signal collecting device and a water valve opening and closing control device. The moving-on (normally open) switch controlled by the float in the water connection pipe and the moving-off (normally closed) switch controlled by the water valve gear are connected in series in the motor circuit, and the motor shaft gear meshes with the water valve gear.

The utility model has the advantages of simple structure, easy manufacture, convenient matching installation, low cost and convenient application.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

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

Fig. 2 is a side view of the water valve gear in the figure.

The symbols in the figure respectively represent: 1. Water valve; 2. Float; 3. Moving-on switch; 4. Water valve gear; 5. Moving-off switch; 6. Motor; Float rod; 10, leak hole; 11, water tank; 12, manual wheel; 13, overflow pipe; 14, arc portion; 15, ellipse portion; 16, central axis.

Detailed ways

As shown in the figure, the utility model is composed of an overflow signal collecting device and a water valve (1) opening and closing control device. The moving-on switch (3) controlled by the float (2) in the water connection pipe (8) and the moving-off switch (5) controlled by the water valve gear (4) are connected in series in the motor (6) circuit, and the motor shaft gear (7) and The water valve gear (4) meshes.

The float rod (9) end in the water connection pipe (8) is connected as a whole with the moving piece of the moving switch (3).

The bottom of the water connection pipe (8) is provided with a leak hole (10), so that after stopping the water injection, the water leaks dry, the float (2) descends, and the moving and closing switch (3) returns to the normally open state.

The other end of the motor shaft is provided with a manual wheel (12), which supplies water to the starting water valve (1), and makes the dynamic disconnection switch (5) return to the normally closed state simultaneously.

Water valve (1) is the ceramic valve of 90 ° opening and closing.

The water valve gear (4) is semi-elliptic, and the arc portion (14) is shaped on gear teeth, and the ellipse portion (15) has no gear teeth.

When filling water into the water tank (11), turn the manual wheel (12) forward, the water valve gear (4) reverses to the position of the water valve (1) at 0°, and the water valve opens to fill the water tank (11); at the same time, the water valve The central axis (16) of the valve gear (4) is also in the 0 ° position (horizontal), and the dynamic disconnection switch (5) returns to the normally closed state. When the water tank (11) was full, the overflow pipe (13) outlet water flowed in the water receiving pipe (8), the float (2) floated up, and the moving close switch (3) was connected. The motor (6) is powered on, and when the water valve gear (4) engaged on the motor shaft gear (7) rotates forward to 90°, the water valve (1) is closed; at the same time, the water valve gear (4) Central axis (16) is also in 90 ° of position (vertical) thereupon, and the top actuates disconnection switch (5), and motor (6) loses power and stops working. At this time, the water tank (11) stops overflowing, and the water pipe (8) not only has no water to enter, but also the leak hole (10) is still flowing out, so that the water level in the water pipe (8) continues to drop, and the float (2) falls , actuate the closing switch (3) to return to the normally open state.

Claims (5)

1. automatic anti-overflow device of solar water heater water filling, it is adopted to device and water valve opening/shutting controller by the spilling water signal and forms; It is characterized in that: the moving moving disconnection of running pass (3) and water valve gear (4) control jointly of float (2) control in the water receiving pipe (8) is closed (5) and is series in motor (6) circuit generator shaft gear (7) and water valve gear (4) engagement.

2. the automatic anti-overflow device of a kind of solar water heater water filling according to claim 1 is characterized in that: float lever (9) end in the water receiving pipe (8) is connected as a single entity with the moving moving plate of running pass (3) jointly.

3. the automatic anti-overflow device of a kind of solar water heater according to claim 1 is characterized in that: the bottom of water receiving pipe (8) is provided with leaking hole (10).

4. the automatic anti-overflow device of a kind of solar water heater water filling according to claim 1 is characterized in that: water valve (1) is 90 ° and opens and closes ceramic valve.

5. the automatic anti-overflow device of a kind of solar water heater water filling according to claim 1, it is characterized in that: water valve gear (4) is a half elliptic, and arc sections (14) is shaped on the gear teeth, the no gear teeth of elliptical section (15).

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