CN201166179Y - A solar water heater overflow automatic switch - Google Patents

Abstract

The utility model provides an automatic switch of solar energy water overflow, which aims at the problem of non-automatic switch of a common water-supply valve of existing solar energy heaters, and water is wasted if a person forgets closing the water-supply valve. The utility model provides a solar energy heater which adopts a valve with superior property. A cavity for containing water is arranged in the handle of the valve, and the cavity is communicated with an overflow pipe of the solar energy heater. When water is full in the solar energy heater, residual water overflows from an overflow pipe and flows into the cavity of the handle. When water in the handle is full, the handle is driven to rotate since the gravity function, and the valve is closed. The utility model has the advantages of simple structure and smart design which smartly utilizes the weight principle to reach the effect of automatically closing the valve.

Description

A solar water heater overflow automatic switch

technical field

The utility model relates to an automatic overflow switch of a solar water heater.

Background technique

As an inexhaustible and clean energy source, solar energy has received more and more attention. The most widely used solar technology is solar water heaters. Existing solar energy is to adopt solar silicon crystal plate to be arranged in the place with good daylighting, then solar energy is converted into thermal energy and water is heated.

Existing solar water heaters need to be provided with a water supply system, even if the water enters the water storage barrel connected with the solar silicon crystal plate to heat the water in the water storage barrel through solar energy. The switches of the existing water supply system are divided into the following types:

1. The microcomputer switch can display the water level and the temperature, and the effect is obvious. The shortcoming of this kind of valve is that cost is high, and needs special power supply, electric wire to supply power to it, and installation is inconvenient, and can't be used when power failure.

2. The flush toilet type pressure switch has the advantages of automatic water supply and automatic shutdown, and the pressure can be adjusted. The disadvantage of this kind of valve is that when the pressure is lowered, the water will be replenished with a little water, and the cold water will be replenished when the water is not used, which affects the temperature of the hot water; if the pressure is increased, the water cannot be replenished in time, and the small water storage will affect the use.

3. For ordinary water supply valves, the valve is manually opened when the water is supplied, and when the water tank is full, it flows out from the overflow pipe, and then the valve is manually closed. The disadvantage of this kind of valve is that someone must watch it, and often the switch is opened and forgotten to close, wasting precious water resources.

Utility model content

Aiming at the defects and deficiencies in the prior art, the purpose of this utility model is to propose a solar water heater overflow automatic switch, which can not only have the low cost and simple structure of the ordinary water supply switch, but also do not need to make large-scale adjustments to the existing pipelines. The advantage of the modification is that at the same time, the valve can be automatically closed after the water tank is full, which overcomes the shortcomings of the existing three valves.

In order to achieve the above object, the utility model proposes an automatic switch for solar water heater overflow, which includes a valve and a switch handle of the valve. The water pipeline is connected, when the solar water heater overflows, the overflowing water flows into the inner cavity of the handle along the overflow pipeline; the handle is engaged with the valve; the handle has an appropriate shape so that the inner cavity of the handle is When filled with water, the valve is driven to rotate so that the valve is closed.

As a preference of the above technical solution, one end of the handle has internal teeth, the valve shaft has external teeth corresponding to the internal teeth of the handle, and the handle and the valve shaft pass through the internal teeth and the external teeth. connect.

As a preference of the above technical solution, when the valve is opened, the handle is in a horizontal position, and when the valve is closed, the handle is in a vertical position.

As a preference of the above technical solution, the end of the handle connected to the valve is tapered, and the end of the handle away from the valve is tapered.

As a preference of the above technical solution, the handle has a water outlet.

The utility model proposes an automatic overflow switch for a solar water heater. Aiming at the problem that the ordinary water supply valve of the existing solar water heater cannot be closed automatically, and therefore water will be wasted once it is forgotten to be closed manually, the utility model proposes a solar water heater using The high-quality valve has a water-filled cavity in the handle of the valve, and the cavity is connected with the overflow pipe of the solar water heater. When the solar water heater was full of water, excess water overflowed from the overflow pipe and flowed into the cavity of the handle. When the handle is full of water, due to the effect of gravity, the handle is driven to rotate and the valve is closed. The solar water heater overflow automatic switch proposed by the utility model has a very simple structure, but the design is exquisite, and the principle of gravity is cleverly used to achieve the effect of automatically closing the overflow valve.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of a preferred embodiment of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

The preferred embodiment of the utility model is shown in Fig. 1, the cavity 11 is formed in the handle 1, and the handle 1 is fixedly connected with the valve (not shown in the figure), wherein the connection method can be engagement or other methods. The cavity 11 of the handle 1 is connected with the solar water heater through the overflow pipeline 2 . When the solar water overflow device was full of water, water flowed into the cavity 11 from the overflow pipeline 2 . The handle 1 has a suitable shape so that when the inner cavity 11 of the handle 1 is filled with water, it drives the valve to rotate to close the valve.

The shape of the handle 1 can be as shown in Figure 1. The end of the handle 1 connected to the valve is thinner and the end away from the valve is thicker. The handle 1 has internal teeth 12, and the handle 1 meshes with the external teeth of the valve through the internal teeth 12. . When opening, ensure that the valve opens when the handle 1 is in the horizontal position, and the valve closes when the handle 1 is in the vertical position.

The handle 1 has a water outlet 13, so that after the handle 1 is filled with water and the valve is closed, the water can be released for reuse. Simultaneously, an air outlet 14 is also provided on the handle.

Of course, the utility model also has other embodiments. Without departing from the spirit and essence of the utility model, those skilled in the art can make various corresponding changes and deformations according to the utility model, but these corresponding All changes and deformations should belong to the protection scope of the claims of the present utility model.

Claims (5)

1. An automatic overflow switch for a solar water heater, comprising a valve and a switch handle of the valve, characterized in that the handle is hollow to form a cavity, and the cavity of the handle is connected to the overflow pipeline of the solar water receiver, When the solar water heater overflows, the overflowing water flows into the inner cavity of the handle along the overflow pipeline; the handle is fixedly connected with the valve; the handle has a suitable shape so that when the inner cavity of the handle is filled with water Drive the valve to rotate to close the valve. 2. The solar water heater overflow automatic switch according to claim 1, characterized in that one end of the handle has internal teeth, the valve shaft has external teeth corresponding to the internal teeth of the handle, and the handle is connected to the internal teeth of the handle. The valve shaft is connected through the internal teeth and the external teeth. 3. The solar water heater overflow automatic switch according to claim 1, when the valve is opened, the handle is in the horizontal position, and when the valve is closed, the handle is in the vertical position. 4. The solar water heater overflow automatic switch according to claim 3, the end of the handle connected to the valve is tapered, and the end of the handle away from the valve is tapered. 5. The solar water heater overflow automatic switch according to claim 1, the handle has a water outlet.

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