CN202017795U - Energy-saving emptying check valve - Google Patents

Abstract

An energy-saving emptying check valve belongs to the technical field of valves. It consists of a valve body and a lifting valve core. The valve body is provided with water inlet and outlet pipes and air inlet pipes from top to bottom. The water inlet and outlet pipes and air inlet pipes are all connected to the valve body. There is a lifting valve core in the valve body corresponding to the position of the water inlet and outlet pipe; the lifting valve core is connected with a pull wire, and the top of the pull wire passes through the lock nut and then extends to the outside; a one-way air intake valve is installed in the air intake pipe. The utility model is simple to operate, does not consume electric energy in the working process, is energy-saving and environmentally friendly, and the upper and lower water pipes of the water heater after installation do not need to be packaged with thermal insulation materials, nor need to install heating belts. When using the water heater, hot water can flow out directly, and the service life is long. Provides great convenience.

Description

Energy saving emptying check valve

technical field

The utility model relates to a valve, in particular to an energy-saving emptying check valve.

Background technique

Today, energy conservation and emission reduction, low-carbon life, and environmental protection have become the themes of social life. Solar water heaters are widely used in urban and rural areas because of their energy saving, environmental protection, convenience and practicality, and have become a very common daily necessities in the daily life of the people. However, there are still some inconveniences in traditional solar water heaters in daily use. The most obvious problem is When using, the cold water stored in the upper and lower water pipes must be discharged first. When the floor is higher, there will be more cold water stored in the upper and lower water pipes, which is not only inconvenient to use, but also easy to freeze the upper and lower water pipes when the temperature is low in winter.

For addressing this problem, present method has two kinds of methods of packing insulation material and installing electric emptying valve on upper and lower water pipes. The shortcoming one that the first method exists is that the heat preservation effect cannot be guaranteed, and the situation that the upper and lower water pipes are still damaged by freezing will occur; The disadvantages of the second method are: first, electricity must be used, and it is not energy-saving; second, it cannot be used during a power outage, which is inconvenient; third, due to technical reasons, frequent failures occur, and it cannot be used normally, which increases maintenance costs and troubles; When components leak due to aging or other damage, it will cause personal injury, pose a safety hazard and have a short service life.

In summary, for avoiding the problems of cold water flowing out first and the upper and lower water pipes being damaged by freezing when using the water heater, there is no good solution at present.

Utility model content

The purpose of the utility model is to provide an energy-saving emptying check valve. When the device is in use, hot water can flow directly from the upper and lower water pipes for people to use. It has the characteristics of environmental protection, energy saving, convenient operation and long service life.

The technical scheme adopted by the utility model to solve the technical problem is: an energy-saving emptying check valve, which is characterized in that it includes a valve body and a lifting valve core, the valve body is tubular, and the valve body is respectively provided with Water inlet and outlet pipes and air inlet pipes, the water inlet and outlet pipes and air inlet pipes are all connected to the valve body, and the bottom of the valve body is the upper and lower water ports that communicate with the inside of the valve body; the valve body is equipped with a lifting valve core at the position corresponding to the water inlet and outlet pipes, and the lifting valve core A lock nut is installed above; the lift valve core is connected with a pull wire, and the bottom end of the pull wire is provided with a boss to clamp the bottom end of the lift valve core, and the top end of the pull wire extends to the outside after passing through the lock nut; A one-way intake valve is installed in the pipe.

The lifting valve core is composed of a spring and a rubber pad wrapped outside the spring.

The central hole of the valve body is a stepped hole, and the diameters of the holes located at both ends of the central hole are greater than the diameter of the middle part of the central hole.

A pull switch is provided on the top of the pull wire.

The outer side of the valve body is covered with a valve casing and a valve cover, the valve casing is a shell with an open top, and the valve cover is located above the valve casing and connected with the valve casing.

Insulation material is filled between the valve shell and the valve body.

Compared with the prior art, the utility model has the following prominent beneficial effects:

1. The working process does not need to consume electric energy, saves energy and protects the environment, and eliminates potential safety hazards.

2. It can empty the remaining water in the upper and lower water pipes. The upper and lower water pipes do not need to be packaged with thermal insulation materials, and there is no need to install heating belts. This reduces installation costs and prevents the upper and lower water pipes from being damaged by freezing in winter.

3. It is easy to operate, there is no residual cold water in the upper and lower water pipes, and hot water flows out when the pull switch is turned on during use, which is comfortable to use.

4. All components are mechanically controlled and have a long service life.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of the utility model.

In the figure: 1 pull wire, 2 valve cover, 3 lock nut, 4 spring, 5 rubber pad, 6 water inlet and outlet pipe, 7 valve housing, 8 upper and lower nozzles, 9 air intake pipe, 10 air intake valve, 11 valve body, 12 lifting valve core , 13 pull switch.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and embodiments of the description:

As shown in Figure 1. The energy-saving emptying check valve includes a valve body 11 and a lifting valve core 12. The valve body 11 is tubular, and the valve body 11 is respectively provided with an inlet and outlet pipe 6 and an air inlet pipe 9 from top to bottom. The air intake pipes 9 all lead into the valve body 11, and the bottom end of the valve body 11 is an upper and lower water port 8 communicating with the interior of the valve body 11; A lock nut 3 is installed above; the lift spool 12 is connected with a pull wire 1, and the bottom end of the pull wire 1 is provided with a boss to block the bottom end of the lift spool 12, and the top of the pull wire 1 passes through the lock nut 3. Extending to the outside; a one-way intake valve 10 is installed in the intake pipe 9 .

The lifting valve core 12 is composed of a spring 4 and a rubber pad 5 wrapped outside the spring 4 . The structure is relatively simple and the cost is low.

The central hole of the valve body 11 is a stepped hole, and the diameters of the holes located at both ends of the central hole are larger than the diameter of the middle part of the central hole. Inside.

A pull switch 13 is provided on the top of the pull wire 1 . It is more convenient for people to operate that a pull switch 13 is provided.

In order to effectively protect the valve body 11 and its internal structure and ensure the service life of the device, the outer side of the valve body 11 is covered with a valve casing 7 and a valve cover 2, the valve casing 7 is a shell with an open top, and the valve cover 2 It is located above the valve housing 7 and connected with the valve housing 7 in cooperation.

In order to ensure that the valve body 11 is not damaged by freezing and to ensure the temperature of the water at the inlet and outlet pipes 6 , an insulating material is filled between the valve housing 7 and the valve body 11 .

The working principle of the utility model is: when in use, the inlet and outlet pipes 6 of the valve body 11 are connected to the inlet and outlet of the solar bucket, and the upper and lower nozzles 8 at the bottom of the valve body 11 are connected to the upper and lower water pipes, and the ends of the upper and lower water pipes are divided into two branches. One branch is the upper water branch, the other is the lower water branch, the upper water branch and the lower water branch are respectively provided with switches, and the upper water branch is connected to the water supply tap water pipe. The pull switch 13 that pull wire 1 connects is installed in the position that is convenient for people to operate indoors.

When filling water to the solar water bucket, open the switch of the upper water branch, tap water flows into the valve body 11, and the lift valve core 12 is pushed back under the effect of the water pressure of the tap water itself, and the tap water enters the solar water bucket through the inlet and outlet pipes 6. When the amount of water in the solar water bucket reaches the level that people need, or when the tap water is cut off, the switch of the upper water branch is closed. Lifting spool 12 closes the entrance of water inlet and outlet pipe 6, and the water in the solar water bucket can not flow back.

After the water injection is completed, turn on the switch of the water branch to empty the remaining water in the upper and lower water pipes. After emptying, there is no remaining water in the upper and lower water pipes, so as to prevent the upper and lower water pipes from being damaged by freezing when the temperature is low and solve the problem of cold water flowing out first when people use it. question. When draining from the sewer branch, the air will enter the valve body 11 through the intake pipe 9 and the intake valve 10 to ensure pressure balance and smooth drainage. At the same time, the intake valve 10 is a one-way valve to prevent water from flowing out of the intake pipe 9. .

When using hot water, turn on the switch of the sewer branch, operate the pull wire 1 through the pull switch 13 installed in the room, the pull wire 1 pulls the lifting valve core 12, the spring 4 shrinks and moves upward, and the communication port between the inlet and outlet pipe 6 and the valve body 11 is opened , hot water flows out from the sewer branch after the valve body 11 and the upper and lower water pipes. Manipulate the backguy 1 by the backguy switch 13 to reset the lifting valve core 12 after finishing using, and the entrance of the water inlet and outlet pipe 6 is closed again, and then the water in the upper and lower water pipes is emptied for next use. Since there is no residual water in the upper and lower water pipes, hot water flows out at the beginning of use, which is very convenient.

The valve casing 7 and the valve cover 2 of the utility model use anti-ultraviolet and anti-oxidation materials, the valve body 11 and the lifting valve core 12 use high-temperature resistant materials, and polyurethane insulation materials are filled between the valve body 11 and the valve casing 7 to keep warm, so that the product It has the characteristics of long service life.

The above is just to illustrate some principles of the utility model. This description is not intended to limit the utility model to the specific structure and scope of application shown, so all corresponding modifications and equivalents that may be used , all belong to the scope of patents applied for by the utility model.

Except for the technical features described in the description, the rest of the technical features are known to those skilled in the art.

Claims (6)

1. The energy-saving emptying check valve is characterized in that it includes a valve body and a lifting valve core. The valve body is tubular, and the valve body is respectively provided with an inlet and outlet pipe and an inlet pipe from top to bottom. The air pipes all lead into the valve body, and the bottom end of the valve body is the upper and lower water ports that communicate with the inside of the valve body; the valve body is equipped with a lift valve core at the position corresponding to the water inlet and outlet pipes, and a lock nut is installed above the lift valve core; A stay wire is connected, and the bottom end of the stay wire is provided with a boss to block the bottom end of the lifting valve core, and the top end of the stay wire passes through the lock nut and then extends to the outside; a one-way air intake valve is installed in the air intake pipe. 2. The energy-saving and emptying check valve according to claim 1, wherein the lifting valve core is composed of a spring and a rubber pad wrapped outside the spring. 3. The energy-saving and emptying check valve according to claim 1 or 2, wherein the central hole of the valve body is a stepped hole, and the diameters of the holes at both ends of the central hole are larger than the diameter of the middle part of the central hole. The lifting spool and the boss at the bottom end of the stay wire are all located in the central hole at the upper end of the valve body. 4. The energy-saving emptying check valve according to claim 3, wherein a pull switch is provided at the top of the pull wire. 5. The energy-saving emptying check valve according to claim 1, characterized in that, the outer side of the valve body is covered with a valve casing and a valve cover, the valve casing is a casing with an open top, and the valve cover is located on the valve casing. above and connected with the valve housing. 6. The energy-saving and emptying check valve according to claim 5, characterized in that an insulating material is filled between the valve housing and the valve body.

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