CN201155878Y - Solar water heater vent valve connection device - Google Patents

Abstract

The utility model relates to a connecting device for an emptying valve of a solar water heater, which belongs to accessories of the solar water heater. The lower part of the connecting device has threaded wires to connect with the emptying valve body. There is a sealed partition. The upper layer of the partition is an upwardly open shape. The upper layer of the partition has a built-in buoyancy gasket. The buoyancy gasket is connected to the floating ball placed in the inner tank of the water tank. There is a gap between the outer shell of the connecting device and the inner shell of the connecting device. , the upper part of the shell has an opening with a threaded wire to connect with the water tank liner. The structure is simple, the installation is convenient, and the performance is reliable through water pressure control, which can make the solar water heater complete automatic water supply, drain the upper and lower water pipes, avoid the problem of freezing and cracking of the water pipes, and improve the performance of the solar water heater.

Description

Solar water heater vent valve connection device

technical field

The utility model relates to a connecting device for an emptying valve of a solar water heater, which belongs to accessories of the solar water heater.

Background technique

Solar water heaters have been widely used due to their advantages of energy saving and convenience, and are well received by users. However, the upper and lower water pipes of solar water heaters are easy to be frozen in winter, which makes them unable to be used normally and affects their performance. It is an urgent need at present. A big problem to solve.

Contents of the invention

The purpose of this utility model is to provide a solar water heater emptying valve connection device, which has a simple structure and reliable performance, can ensure the reliable use of the solar water heater emptying valve, and can have the function of automatic water supply, which can make the upper and lower water pipes of the solar water heater Empty, and solve the problem of manual waiting for water supply, so that the function of the solar water heater is improved.

The solar water heater emptying valve connection device described in the utility model includes the emptying valve connecting device, the lower part of the connecting device has a threaded wire to connect with the emptying valve body, the inner shell wall of the connecting device is provided with a through hole, and the inner shell of the connecting device There is a sealed partition in the inner cavity, and the upper layer of the partition is an upwardly open shape. The upper layer of the partition has a built-in buoyancy gasket, and the buoyancy gasket is connected with the floating ball placed in the inner tank of the water tank. The upper part of the shell has an opening with a threaded wire to be connected with the water tank liner. The connection device has the effect of reducing the starting pressure on the piston rod of the emptying valve, and at the same time increases the function of automatic water supply.

One end of the emptying valve body is connected to one end of a piston cylinder. The outer end cover of the piston cylinder is provided with a water control interface. The piston of the piston cylinder is connected to the piston rod. There is a gap between the piston and the piston cylinder. The valve body The end cover at the end is provided with a piston rod hole, and the other end of the valve body is the interface between the emptying valve and the connection device, and the connection device interface is equipped with a sealing cover. The sealing cover is connected to the other end of the piston rod, and one side of the valve body is provided with an upper and lower water connection, and the valve body and the piston cylinder can be split or integrated.

The utility model is used in a solar water heater, connected to the water pipe through the water control interface, connected to the water tank liner through the connecting device, connected to the upper and lower water pipelines and the ventilation pipe through the upper and lower water interfaces, and controlled by the valve on the pipeline when in use. Open and close, complete water supply, hot water and emptying antifreeze.

When in use, you can connect a three-way pipe to the upper and lower water interfaces, one way is connected to the upper and lower water pipelines, and the other way is connected to the air pipe leading to the upper air layer of the water tank for emptying. Of course, the upper and lower water interfaces can also be directly connected to the upper and lower water pipes. Water pipeline, and then add a ventilation interface on one side of the valve body, connect the ventilation interface to the ventilation pipe on the upper air layer of the water tank liner, for emptying, and in the pipeline connected to the upper air layer of the inner tank, a single to the valve.

A sealing gasket is provided on the inner side of the sealing cover to ensure the sealing performance between the sealing cover and the connection device interface, and a sealing gasket is also provided on the inner surface of the piston to improve the sealing performance between the piston and the end cover of the valve body.

The utility model has the advantages of simple structure, convenient manufacture and arrangement, and reliable performance through water pressure control, which can empty the upper and lower water pipelines of the solar water heater, avoid the problem of pipeline freezing and cracking, and ensure that the solar water heater can be used normally in winter and can Automatic water supply improves the use function of solar water heaters.

Description of drawings

Figure 1: Structural schematic diagram of Embodiment 1 of the utility model

Figure 2: Schematic diagram of pipeline connection in practical application of Embodiment 1 of the utility model

In the figure, 1. Inner tank interface; 2. Outer shell; 3. Inner shell of connecting device; 4. Partition upper layer; 5. Partition; 6. Partition lower layer; ; 10, buoyancy gasket; 11, floating ball connecting rod; 12, sealing cover; 13, connecting device interface; 14, piston rod; 15, valve body; 16, connecting thread; 17, piston cylinder body; 18, water control Interface; 19, outer end cover; 20, internal thread; 21, piston; 22, end cover; 23, upper and lower water interface; 24, piston rod hole; 25, gasket; 26, exhaust pipe; 27, ventilation pipe; 28. Water tank liner; 29. One-way valve; 30. Tee pipe; 31. Upper and lower water pipes; 32. Water mixing valve; 33. Spray faucet; 34. Water pipe; 35. Control valve; 36. Water control pipeline; 37, float

Detailed ways

The utility model is further described in conjunction with the accompanying drawings of the above-mentioned embodiments

As shown in Figure 1, the solar water heater venting valve connecting device described in the utility model has a threaded wire 9 connected to the venting valve body 15 at the bottom of the connecting device, and a through hole 7 is provided on the shell wall of the connecting device inner shell 3, There is a sealed partition 5 in the cavity of the inner shell 3 of the connection device, and the upper layer 4 of the partition is an upwardly open shape; the upper layer of the partition 4 has a built-in buoyancy gasket 10; the buoyancy gasket 10 and the floating ball 37 placed in the tank liner pass through the The ball connecting rod 11 is connected, and there is a gap between the inner shell 3 and the outer shell of the connecting device, and the upper part of the outer shell 2 has an opening of a threaded wire, which is connected to the inner tank interface 1 and the inner tank threadedly, and one end of the valve body 15 is connected to a piston One end of the cylinder body 17, the valve body 15 and the piston cylinder body 17 are connected by thread 16, the outer end cover 19 of the piston cylinder body 17 is provided with a water control interface 18, and the water control interface 18 is provided with a connecting internal thread 20, and the piston cylinder The piston 21 in the body 17 is connected to the piston rod 14, there is a gap between the piston 21 and the piston cylinder 17, the other end of the valve body 15 is a connecting device interface 13, and the connecting device interface end of the valve body is provided with a connecting external thread 9, The connecting device interface 13 is equipped with a sealing cover 12, the inner surface of the sealing cover 12 is provided with a gasket, the sealing cover 12 is connected to the other end of the piston rod 14, and one side of the valve body 15 is provided with an upper and lower water interface 23.

As shown in Figure 2: in practical application, the utility model connects the water control pipeline 36 and the tap water pipeline 34 through the water control interface 18, connects the inner shell 3 of the coupling device through the connecting device interface 13, and connects the inner shell of the water tank through the outer shell 2. Gall 28, threaded connection is easy to operate, connects the tee pipe 30 through the upper and lower water interface 23, one way connects the upper and lower water pipeline 31, and the other way connects the air pipe 27 of the air layer on the upper part of the water tank inner tank 28 through a pipeline with a check valve 29 in series . The water control pipeline 36, the tap water pipeline 34, and the upper and lower water pipelines 31 are respectively provided with a control valve 35 and a water mixing valve 32, which can be adjusted as required during use.

working principle

When taking hot water and supplying water, open the tap water control valve 35, and the tap water enters the inner cavity of the piston cylinder 17 through the water control pipeline 36 to the water control interface 18. Due to the pressure of the tap water, the piston 21 will make the piston rod 14 moves upward, the piston 21 seals the piston rod hole 24, and the sealing cover 12 is lifted up at the same time, opening the passage between the connection device interface 13 and the connection device inner shell 3, and communicating with the through hole 7 on the side wall of the connection device inner shell. The gap between the outer shell 2 and the inner shell 3 of the connecting device is connected to the inner tank interface 1, which is connected to the water tank inner tank 28. If hot water is needed, open the water mixing valve 32 of the upper and lower water pipelines, and the hot water in the water tank inner tank 28 will pass through the upper and lower water tanks. The water pipeline 31 flows out, so that hot water can be obtained from the spray faucet 33. If water supply is required, the tap water control valve 35 and the water mixing valve 32 of the upper and lower water pipelines are opened, and the inner tank of the water tank can be adjusted along the above-mentioned path through the upper and lower water pipelines 31. 28 injected cold water, when the cold water reached a certain water level, due to the effect of the floating ball 37, the buoyancy sealing pad 10 was driven to move up until the liner interface 1 was blocked, so as to achieve the purpose of automatic water filling and automatic stop when the water is full. Due to the effect of the one-way valve 29 during water supply, the cold water will not pass through this path to the water tank liner 28.

When it needs to be emptied in winter, the tap water control valve 35 is closed, and the water mixing valve 32 of the upper and lower water pipelines is opened to the water mixing position. The water in the water in 31 and the water in the water control pipeline 36 will empty out rapidly, and sealing cover 12 falls because of losing the effect of running water pressure simultaneously, cuts off the passage of water tank liner 28 and the utility model connection device interface 13, in the water tank The hot water in the gallbladder 28 is in the maintenance state, and the upper and lower water pipelines 31 and the water control pipeline 36 are all in the emptying state, which has reached the purpose of emptying and antifreezing.

Claims (5)

1. A connection device for a solar water heater emptying valve, including an emptying valve. The connecting device is characterized in that the lower part of the connecting device has a threaded wire to connect with the emptying valve body, and a through hole is provided on the inner shell wall of the connecting device. There is a sealed partition in the cavity. The upper layer of the partition is an upwardly open shape. The upper layer of the partition has a built-in buoyancy gasket. The buoyancy gasket is connected with the floating ball placed in the inner tank of the water tank. The upper part of the shell has an opening with a threaded wire to be connected with the water tank liner. 2. The solar water heater emptying valve connection device according to claim 1, characterized in that one end of the emptying valve body is connected to one end of a piston cylinder, and the outer end cover of the piston cylinder is provided with a water control interface, and the piston cylinder The piston in the body is connected to the piston rod, there is a gap between the piston and the piston cylinder, the end cap at the end of the valve body is provided with a piston rod hole, the other end of the valve body is the interface between the emptying valve and the connecting device, and the connecting device interface The top is equipped with a sealing cover, which is connected to the other end of the piston rod, and one side of the valve body is provided with an upper and lower water interface. 3. The solar water heater emptying valve connection device according to claim 1 or 2, characterized in that the inner cavity of the emptying valve is connected to the upper air layer of the water tank through a pipeline, and a one-way valve should be connected in series in the connecting pipeline. 4. The solar water heater emptying valve connection device according to claim 1 or 2, characterized in that a sealing gasket is provided on the inner side of the sealing cover. 5. The solar water heater venting valve connecting device according to claim 1 or 2, characterized in that a sealing gasket is provided on the inner side of the piston.

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