CN201428836Y - Special energy-saving water-saving emptying valve for solar water heater - Google Patents

Abstract

The utility model discloses a special energy-saving and water-saving emptying valve for solar water heaters, which is provided with a valve body, a water inlet, and a water outlet. The plug is provided with a valve plug rod, and the valve plug rod is provided with a spring to reset the plug rod. The lower end of the valve plug rod leads out of the valve body, and this end is connected with a pull wire. The other end of the pull wire is provided with an adjustment and A control that fixes the position of the pull wire; there is a vent hole in the lower part of the stem. The utility model is suitable for the valve of the outlet pipe of the solar water heater, and has the characteristics of reasonable structural design, low cost, convenient installation, energy saving and water saving.

Description

Special energy-saving water-saving emptying valve for solar water heater

technical field

The utility model belongs to a valve, in particular to a valve capable of flexibly controlling a solar water heater to empty residual water in a water outlet pipe.

Background technique

The solar water heater absorbs the heat of the sun through the solar heat collecting tube, and then transfers the heat to the water storage tank connected with the heat collecting tube. A part of the water will remain in the pipeline between the water tank and the faucet after each use and cannot be drained. It will turn into cold water when it is used next time. It must be drained before use so that hot water can be used normally. In winter, the weather is cold and the pipeline The water inside is easy to freeze, causing pipe blockage. Therefore, it needs to be improved.

Utility model content

The purpose of this utility model is to solve the above technical problems and propose a special energy-saving and water-saving emptying valve for solar water heaters. The emptying valve has the characteristics of reasonable structural design, low cost, convenient installation, energy-saving and water-saving.

The purpose of this utility model is achieved through the following technical proposals: a special energy-saving and water-saving emptying valve for solar water heaters is provided with a valve body, a water inlet, and a water outlet, and the valve body is provided with a valve plug that can open or seal the passage in the valve body The valve plug is provided with a valve plug rod, and the valve plug rod is provided with a spring to reset the plug rod. The lower end of the valve plug rod leads out of the valve body, and this end is connected with a pull wire. The other end is provided with a control for adjusting and fixing the position of the pull wire; a vent hole is provided at the lower part of the valve stem.

The control is a ratchet.

The emptying valve of the utility model adopts the structure of valve plug, return spring, valve plug rod and pull wire, which can conveniently and flexibly remotely control the opening of the valve, and can drain the remaining water in the outlet pipe of the water storage tank of the solar water heater at any time, which saves water And solar energy, and can avoid the hazards of freezing cracks or blockage of pipelines in winter.

Description of drawings

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

Fig. 2 is the structural representation of embodiment 2 of the present utility model;

Fig. 3 is a schematic structural view of Embodiment 3 of the present utility model.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further:

Embodiment 1: See accompanying drawing 1, the special energy-saving and water-saving emptying valve for solar water heaters is provided with a valve body 2, a water inlet 3, and a water outlet 4, and the valve body is provided with a valve plug opening 2.2 that can open or seal the passage in the valve body And the valve plug 2.1, the valve plug is provided with a valve plug rod 2.3, the valve plug rod is provided with a spring 2.4 to reset the plug rod, the reset spring is arranged outside the valve body on the side of the water inlet, the lower end of the valve plug rod is connected to Out of the valve body, this end is connected with a pull wire 1, and the other end of the pull wire is provided with a control 5 for adjusting and fixing the position of the pull wire. The control 5 adopts the structure of a ratchet and a pawl; a vent hole 2.5 , after the valve plug is closed, supplementary air can be given to the water outlet, which is beneficial to drain the water in the water outlet.

Embodiment 2: See accompanying drawing 2, the energy-saving and water-saving emptying valve dedicated to solar water heaters, the return spring is arranged at the lower end of the valve plug rod, and other structures are the same as in Embodiment 1.

Embodiment 3: Refer to accompanying drawing 3, the energy-saving and water-saving emptying valve dedicated to solar water heaters, the return spring is arranged at the lower part of the valve plug rod in the valve body, and other structures are the same as in Embodiment 1.

Claims (2)

1. An energy-saving and water-saving emptying valve for solar water heaters, which is provided with a valve body (2), a water inlet (3), and a water outlet (4). The valve plug port (2.2) and the valve plug (2.1), the valve plug is provided with a valve plug rod (2.3), the valve plug rod is provided with a spring (2.4) to reset the plug rod, the lower end of the valve plug rod Lead out of the valve body, this end is connected with a stay wire (1), the other end of the stay wire is provided with a control (5) for adjusting and fixing the position of the stay wire; a vent hole (2.5) is provided at the bottom of the valve stem. 2. The vent valve of claim 1, wherein said control is a ratchet gear.

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