Intelligent pressure regulating valve for liquefied petroleum gas steel cylinder

Abstract

The utility model relates to the technical field of gas valves, in particular to an intelligent pressure regulating valve for a liquefied petroleum gas steel cylinder, which comprises a pressure regulating valve body, two sides of the pressure regulating valve body are respectively provided with a gas inlet pipe and a gas outlet pipe which are communicated with the pressure regulating valve body, and the top of the pressure regulating valve body is fixedly provided with a pressure gauge communicated with the pressure regulating valve body. A pressure gauge is arranged in the pressure regulating valve body, a pressure gauge hand is rotationally arranged in the pressure gauge, a corresponding numerical value dial plate is fixedly arranged in the pressure gauge, a pressure gauge hand sensor matched with the pressure gauge hand is arranged in the pressure gauge, an alarm is fixedly arranged on the outer side of the pressure regulating valve body, and the alarm is electrically connected with the pressure gauge hand sensor. When the residual amount of liquefied petroleum gas in the liquefied petroleum gas steel cylinder is small, the pressure gauge needle sensor gives a voice alarm to a user through the alarm, and the user is reminded to purchase and replace the liquefied petroleum gas steel cylinder in time.

Description

Technical Field

[0001] This utility model relates to the field of gas valve technology, specifically to an intelligent pressure regulating valve for liquefied petroleum gas cylinders. Background Technology

[0002] A liquefied petroleum gas (LPG) pressure regulating valve is a crucial gas appliance. Its main function is to convert the high-pressure liquefied gas in LPG cylinders into a low-pressure gaseous state suitable for combustion in stoves. To achieve this function, the pressure regulating valve needs to be installed on the LPG cylinder's angle valve to connect the angle valve and hose, thereby reducing the inlet pressure to the required outlet pressure and automatically maintaining a stable outlet pressure. This working principle is based on lever-type differential pressure feedback control. Pressure reduction is achieved by filling a relatively large cavity with gas through a small orifice, and control is achieved using the pressure difference between two sides of a diaphragm or piston, one side being the outlet cavity and the other being the manually set pressure.

[0003] Liquefied petroleum gas (LPG) cylinders are typically filled in kilograms. However, existing LPG cylinders lack timely display and warning systems to indicate the remaining LPG level. This can lead to situations where, for example, the cylinder suddenly runs out of LPG while the user is cooking, disrupting the preparation of food. Therefore, there is an urgent need for an intelligent pressure regulating valve for LPG cylinders that can display and warn users about the remaining LPG level. Utility Model Content

[0004] The purpose of this invention is to provide an intelligent pressure regulating valve for liquefied petroleum gas cylinders.

[0005] A smart pressure regulating valve for liquefied petroleum gas cylinders includes a valve body, an inlet pipe and an outlet pipe connected to both sides of the valve body, a pressure gauge fixedly mounted on the top of the valve body and connected thereto, a pressure gauge needle rotatably mounted inside the pressure gauge, a corresponding numerical dial fixedly mounted inside the pressure gauge, a pressure gauge needle sensor cooperating with the pressure gauge needle inside the pressure gauge, and an alarm fixedly mounted on the outside of the valve body, the alarm being electrically connected to the pressure gauge needle sensor.

[0006] Furthermore, the pressure gauge is fixedly provided with two limiting posts that cooperate with the pressure gauge needle. The two limiting posts are respectively located at both ends of the numerical dial, which includes a pressure dial and a kilogram dial.

[0007] Furthermore, a filter screen is fixedly installed at the end of the air intake pipe away from the pressure regulating valve body, a sealing gasket is installed on the outside of the filter screen, a connecting nut is rotatably installed on the outside of the air intake pipe, and a handwheel is fixedly installed on the outside of the connecting nut.

[0008] Furthermore, a press-type leak-locking valve is fixedly installed on the air inlet pipe between the pressure regulating valve body and the connecting nut.

[0009] In summary, this utility model has the following beneficial effects:

[0010] In this invention, the pressure regulating valve body vaporizes and regulates the gas, which then enters the pressure gauge and drives the gauge needle to rotate. The user can read the pressure value of the liquefied petroleum gas (LPG) in the cylinder and its corresponding kilogram value displayed on the gauge. When the remaining LPG in the cylinder is low, the pressure gauge needle sensor sends an alarm to the user, prompting them to purchase or replace the cylinder in time to prevent any impact on food preparation. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of an intelligent pressure regulating valve for liquefied petroleum gas cylinders according to the present invention.

[0012] In the diagram: 1. Pressure regulating valve body, 2. Inlet pipe, 3. Connecting nut, 4. Handwheel, 5. Filter screen, 6. Sealing gasket, 7. Press-type leak-proof self-locking valve, 8. Outlet pipe, 9. Pressure gauge, 10. Pressure gauge needle, 11. Pressure gauge dial, 12. Weight gauge dial, 13. Limit pin, 14. Pressure gauge needle sensor, 15. Alarm. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0014] The following is in conjunction with the appendix Figure 1 The present invention will be further described as follows:

[0015] A smart pressure regulating valve for liquefied petroleum gas cylinders includes a pressure regulating valve body 1. An inlet pipe 2 and an outlet pipe 8 are respectively provided on both sides of the pressure regulating valve body 1 and are connected thereto. A pressure gauge 9 is fixedly installed on the top of the pressure regulating valve body 1 and is connected thereto. A pressure gauge needle 10 is rotatably installed inside the pressure gauge 9. Two limiting posts 13 that cooperate with the pressure gauge needle 10 are fixedly installed inside the pressure gauge 9. A corresponding numerical dial is fixedly installed inside the pressure gauge 9. The two limiting posts 13 are respectively located at both ends of the numerical dial. The numerical dial includes a pressure dial 11 and a kilogram dial 12. A pressure gauge needle sensor 14 that cooperates with the pressure gauge needle 10 is installed inside the pressure gauge 9. An alarm 15 is fixedly installed on the outside of the pressure regulating valve body 1, and the alarm 15 is electrically connected to the pressure gauge needle sensor 14.

[0016] In this embodiment, the inlet pipe 2 is connected to the angle valve of the LPG cylinder, and the outlet pipe 8 is connected to the gas stove via a gas hose. After the LPG cylinder angle valve is opened, the LPG in the LPG cylinder is vaporized and pressure-regulated by the pressure regulating valve body 1, and then discharged from the outlet pipe 8 to the gas stove for combustion. The vaporized and pressure-regulated gas from the pressure regulating valve body 1 enters the pressure gauge 9 and drives the pressure gauge needle 10 to rotate. The user can read the pressure value of the LPG in the LPG cylinder and its corresponding kilogram value displayed on the pressure gauge 9. When the pressure gauge needle 10 slowly moves from the high value on the dial to the position of the pressure gauge needle sensor 14, that is, when the LPG in the LPG cylinder is gradually consumed to a preset lower value, it means that the remaining LPG in the LPG cylinder is low. When the remaining LPG in the LPG cylinder is low, the pressure gauge needle sensor 14 will issue a voice warning to the user through the alarm 15, reminding the user to purchase or replace the LPG cylinder in time.

[0017] A filter screen 5 is fixedly installed at the end of the air intake pipe 2 away from the pressure regulating valve body 1. A sealing gasket 6 is installed on the outside of the filter screen 5. A connecting nut 3 is rotatably installed on the outside of the air intake pipe 2. A handwheel 4 is fixedly installed on the outside of the connecting nut 3.

[0018] In this embodiment, the user turns the handwheel 4 to connect the air inlet pipe 2 to the LPG cylinder angle valve via the connecting nut 3. Preferably, the filter screen 5 filters the LPG discharged from the LPG cylinder. The sealing gasket 6 seals the connection between the connecting nut 3 and the LPG cylinder angle valve to prevent leakage.

[0019] A press-type leak-locking valve 7 is fixedly installed on the air inlet pipe 2 between the pressure regulating valve body 1 and the connecting nut 3.

[0020] In this embodiment, preferably, when gas leaks from the gas hose, the flow rate through the press-type leak-locking valve 7 increases and exceeds the safety device setting value of the press-type leak-locking valve 7. At this point, the valve core inside the press-type leak-locking valve 7 blocks the inlet pipe 2, preventing liquefied gas from leaking out. The press-type leak-locking valve 7 is a commonly used technical means in the prior art, and its specific structure will not be described in detail.

[0021] In summary, this utility model is not limited to the specific embodiments described above. Those skilled in the art can make various modifications and alterations without departing from the spirit and scope of this utility model. The scope of protection of this utility model should be determined by the claims of this utility model.

[0022] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0023] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

Claims

1. An intelligent pressure regulating valve for liquefied petroleum gas cylinders, comprising a pressure regulating valve body (1), characterized in that, The pressure regulating valve body (1) is provided with an air inlet pipe (2) and an air outlet pipe (8) connected to it on both sides. A pressure gauge (9) is fixedly provided on the top of the pressure regulating valve body (1) and connected to it. A pressure gauge needle (10) is rotatably provided inside the pressure gauge (9). A corresponding numerical dial is fixedly provided inside the pressure gauge (9). A pressure gauge needle sensor (14) that cooperates with the pressure gauge needle (10) is provided inside the pressure gauge (9). An alarm (15) is fixedly provided on the outside of the pressure regulating valve body (1). The alarm (15) is electrically connected to the pressure gauge needle sensor (14).

2. The intelligent pressure regulating valve for liquefied petroleum gas cylinders as described in claim 1, characterized in that, The pressure gauge (9) is fixedly provided with two limiting posts (13) that cooperate with the pressure gauge needle (10). The two limiting posts (13) are respectively set at both ends of the numerical dial. The numerical dial includes a pressure dial (11) and a kilogram dial (12).

3. The intelligent pressure regulating valve for liquefied petroleum gas cylinders as described in claim 2, characterized in that, A filter pad (5) is fixedly installed at one end of the air intake pipe (2) away from the pressure regulating valve body (1). A sealing gasket (6) is installed on the outside of the filter pad (5). A connecting nut (3) is rotatably installed on the outside of the air intake pipe (2). A handwheel (4) is fixedly installed on the outside of the connecting nut (3).

4. The intelligent pressure regulating valve for liquefied petroleum gas cylinders as described in claim 3, characterized in that, A press-type leak-locking valve (7) is fixedly installed on the air inlet pipe (2) between the pressure regulating valve body (1) and the connecting nut (3).

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