Gas safety protection pressure regulating device

Abstract

The utility model relates to the technical field of air pressure regulation, and discloses a gas safety protection pressure regulating device which comprises a shell, a gas inlet pipe and a gas outlet pipe are connected to the two sides of the shell, a stop valve and a pressure release valve are arranged on the gas inlet pipe and the gas outlet pipe respectively, and the gas inlet pipe is directly communicated with the interior of the shell; the pressure detection assembly comprises a pressure sensor and a dial plate, the pressure sensor is fixedly arranged in the shell, and the dial plate is fixedly arranged on the outer side wall of the shell and electrically connected with the pressure sensor; the pressure adjusting assembly comprises a pressure adjusting pipe, an air guide pipe and a pressure adjusting piston, the pressure adjusting pipe is fixedly arranged on the inner bottom face of the shell, the upper end of the pressure adjusting pipe is arranged upwards and is a bevel opening, the pressure adjusting pipe is communicated with the air outlet pipe through the air guide pipe, the pressure adjusting piston is arranged in the shell and over the pressure adjusting pipe, and the lower end of the pressure adjusting piston can be inserted into the pressure adjusting pipe in a sealed mode; and the lifting is driven by an electric push rod fixedly arranged on the shell. The air pressure regulating valve has the advantages that the problem of errors caused by using an elastic assembly is avoided, and the safety air pressure regulating reliability is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas pressure regulation technology, specifically to a gas safety protection pressure regulating device. Background Technology

[0002] A pneumatic pressure safety regulator is a safety device that monitors the pressure of a pneumatic system and prevents overpressure or underpressure by regulating it. It consists of a pressure sensor, a controller, and an actuator: the sensor monitors the pneumatic pressure in real time and transmits a signal to the controller, which compares the signal with a preset threshold. When there is overpressure, the safety valve is activated to release pressure; when there is underpressure, the air supply device is activated to increase the pressure, so that the pneumatic pressure is maintained within a safe range.

[0003] Most current pneumatic safety regulating valves use a mechanical combination of springs and valve plates to regulate the air intake. This design controls the valve opening and closing degree through the dynamic balance between spring force and air pressure. While structurally simple, it has significant drawbacks: the spring, as the core force-bearing component, is prone to metal fatigue under long-term alternating air pressure loads, leading to spring force attenuation or deformation failure; if the system air pressure fluctuates frequently, repeated compression and stretching of the spring will accelerate lattice damage, increasing the risk of breakage. Furthermore, humidity and corrosive gases in the environment can cause spring corrosion, altering its elastic coefficient and consequently causing deviations in valve opening and closing accuracy. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a gas safety protection pressure regulating device that avoids errors caused by the use of elastic components and improves the reliability of gas pressure regulation.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is: a gas safety protection pressure regulating device, comprising:

[0006] The housing has an air inlet pipe and an air outlet pipe connected to both sides. The air inlet pipe and the air outlet pipe are respectively equipped with a shut-off valve and a pressure relief valve. The air inlet pipe is directly connected to the inside of the housing.

[0007] A pressure detection assembly includes a pressure sensor and a dial. The pressure sensor is fixedly installed inside the housing, and the dial is fixedly installed on the outer wall of the housing and electrically connected to the pressure sensor.

[0008] The pressure regulating assembly includes a pressure regulating pipe, an air guide pipe, and a pressure regulating piston. The pressure regulating pipe is fixedly installed on the bottom surface inside the housing, with its upper end facing upward and at an angle. The pressure regulating pipe is connected to the air outlet pipe through the air guide pipe. The pressure regulating piston is located inside the housing directly above the pressure regulating pipe, and its lower end can be sealed and inserted into the pressure regulating pipe. It is driven to rise and fall by an electric push rod fixed on the housing.

[0009] Furthermore, a mounting plate is fixedly provided on the bottom surface of the housing, and a mounting hole is provided at the top corner of the mounting plate.

[0010] Furthermore, a U-shaped bracket is provided on the upper wall of the housing, and the electric push rod is fixedly installed inside the U-shaped bracket, with its lower end extending into the housing and connected to the pressure regulating piston.

[0011] Furthermore, the upper wall of the housing is provided with a through hole through which the end of the electric push rod slides, and a sealing ring is provided at the through hole.

[0012] Furthermore, a guide cover matching the pressure regulating piston is provided on the upper inner wall of the housing, and the pressure regulating piston is slidably disposed within the guide cover.

[0013] Furthermore, the bottom surface of the pressure regulating piston is a plane.

[0014] Compared with existing technologies, this invention has the following advantages: It uses an electric push rod to drive the pressure regulating piston, replacing the spring's elastic force. This eliminates the risk of spring fatigue failure due to alternating loads and corrosion deformation caused by environmental factors, fundamentally avoiding pressure regulation errors caused by the failure of elastic components. Simultaneously, the inclined surface design of the pressure regulating piston and regulating tube allows for precise adjustment of the air inlet size. The pressure sensor and dial provide real-time monitoring and feedback, and the guide cover regulates the piston's movement trajectory. The coordinated work of all components ensures a stable and accurate pressure regulation process, significantly improving the reliability of safe gas pressure regulation and providing a safer and more stable solution for gas pressure control. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention;

[0016] Figure 2 This is the front view of this utility model;

[0017] Figure 3 This is a side view of the present invention;

[0018] Figure 4 This is a cross-sectional view of the present invention.

[0019] As shown in the figure: 1. Housing; 2. Inlet pipe; 3. Outlet pipe; 4. Shut-off valve; 5. Pressure relief valve; 6. Pressure sensor; 7. Dial; 8. Pressure regulating pipe; 9. Air guide pipe; 10. Pressure regulating piston; 11. Electric push rod; 12. Mounting plate; 13. U-shaped bracket; 14. Guide cover. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] Combined with appendix Figure 1 Appendix Figure 3A gas safety protection pressure regulating device includes: a housing 1, with an inlet pipe 2 and an outlet pipe 3 connected to both sides. The inlet pipe 2 and the outlet pipe 3 are respectively equipped with a shut-off valve 4 and a pressure relief valve 5. The inlet pipe 2 is directly connected to the interior of the housing 1. A mounting plate 12 is fixedly provided on the bottom surface of the housing 1. The mounting plate 12 has a mounting hole at its top corner, which facilitates the stable installation of the pressure regulating device in the required position, enhances the flexibility and convenience of device installation, ensures fixed position during use, and improves stability.

[0022] Combined with appendix Figure 2 Appendix Figure 4 The pressure detection component includes a pressure sensor 6 and a dial 7. The pressure sensor 6 is fixedly installed inside the housing 1, and the dial 7 is fixedly installed on the outer wall of the housing 1 and electrically connected to the pressure sensor 6. It can monitor the internal pressure of the housing 1 in real time and provide feedback.

[0023] Combined with appendix Figure 4 The pressure regulating assembly includes a pressure regulating pipe 8, an air guide pipe 9, and a pressure regulating piston 10. The pressure regulating pipe 8 is fixedly installed on the bottom surface of the housing 1, with its upper end facing upward and having an angled opening. The pressure regulating pipe 8 is connected to the air outlet pipe 3 through the air guide pipe 9. The pressure regulating piston 10 is located inside the housing 1 directly above the pressure regulating pipe 8, and its lower end can be sealed and inserted into the pressure regulating pipe 8. The bottom surface of the pressure regulating piston 10 is flat and cooperates with the angled surface at the upper end of the pressure regulating pipe 8, so as to uniformly and stably adjust the size of the air inlet, thereby accurately regulating the pressure.

[0024] Combined with appendix Figure 1 Appendix Figure 4 The pressure regulating piston 10 is driven to rise and fall by an electric push rod 11 fixedly mounted on the housing 1. A U-shaped bracket 13 is provided on the upper wall of the housing 1, and the electric push rod 11 is fixedly mounted inside the U-shaped bracket 13, with its lower end extending into the housing 1 and connecting to the pressure regulating piston 10. This allows it to precisely drive the pressure regulating piston 10, ensuring stable operation of the pressure regulating assembly and improving the reliability of the pressure regulating operation. A through hole is provided on the upper wall of the housing 1 through which the end of the electric push rod 11 slides. A sealing ring is provided at the through hole to ensure the device's airtightness and prevent safety hazards and pressure regulation errors caused by gas leakage.

[0025] Combined with appendix Figure 4 The upper inner wall of the housing 1 is provided with a guide cover 14 that matches the pressure regulating piston 10. The pressure regulating piston 10 is slidably disposed in the guide cover 14. The guide cover 14 provides guidance for the lifting and lowering of the pressure regulating piston 10, restricts its movement trajectory, avoids the pressure regulating piston from deviating, and ensures that the pressure regulating process enters the pressure regulating tube 8 accurately and stably.

[0026] The specific implementation of this utility model is as follows: The device is fixed in the desired position through the mounting holes at the top corner of the mounting plate 12, and the air inlet pipe 2 and the air outlet pipe 3 are connected to the ventilation system. Before use, the shut-off valve 4 on the air inlet pipe 2 is closed, and the pressure relief valve 5 on the air outlet pipe 3 is opened to exhaust gas. During use, the shut-off valve 4 is opened, and the gas enters the interior of the housing 1 through the air inlet pipe 2. The pressure sensor 6 monitors the pressure inside the housing 1 in real time and transmits the data to the dial 7 for display. If it is necessary to adjust the air pressure, the control system activates the electric push rod 11. The electric push rod 11 is fixed inside the U-shaped bracket 13, and its lower end passes through the through hole in the upper wall of the housing 1, driving the pressure regulating piston 10 to rise and fall. Under the guidance of the guide cover 14, the pressure regulating piston 10 is precisely inserted into or disengaged from the pressure regulating pipe 8. By changing the opening degree with the inclined opening at the upper end of the pressure regulating pipe 8, the air intake at the upper end of the pressure regulating pipe 8 is adjusted. The gas flows out from the air outlet pipe 3 through the pressure regulating pipe 8 and the air guide pipe 9, completing the pressure regulation. When the pressure is abnormal, it can be relieved in time through the pressure relief valve 5 to ensure the safe operation of the device.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; for those skilled in the art, the specific meaning of the above term in this utility model can be understood according to the specific circumstances.

[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A gas safety protection pressure regulating device, characterized in that, include: The housing (1) is connected to an air inlet pipe (2) and an air outlet pipe (3) on both sides. The air inlet pipe (2) and the air outlet pipe (3) are respectively equipped with a shut-off valve (4) and a pressure relief valve (5). The air inlet pipe (2) is directly connected to the inside of the housing (1). The pressure detection assembly includes a pressure sensor (6) and a dial (7). The pressure sensor (6) is fixedly installed inside the housing (1), and the dial (7) is fixedly installed on the outer wall of the housing (1) and electrically connected to the pressure sensor (6). The pressure regulating assembly includes a pressure regulating pipe (8), an air guide pipe (9), and a pressure regulating piston (10). The pressure regulating pipe (8) is fixedly installed on the bottom surface inside the housing (1), with its upper end facing upward and at an angle. The pressure regulating pipe (8) is connected to the air outlet pipe (3) through the air guide pipe (9). The pressure regulating piston (10) is located inside the housing (1) directly above the pressure regulating pipe (8), and its lower end can be sealed and inserted into the pressure regulating pipe (8). It is driven to rise and fall by an electric push rod (11) fixed on the housing (1).

2. The gas safety protection pressure regulating device according to claim 1, characterized in that: The bottom surface of the housing (1) is fixedly provided with a mounting plate (12), and the mounting plate (12) is provided with mounting holes at the top corners.

3. The gas safety protection pressure regulating device according to claim 1, characterized in that: The upper wall of the housing (1) is provided with a U-shaped bracket (13), and the electric push rod (11) is fixedly installed inside the U-shaped bracket (13), with its lower end extending into the housing (1) and connected to the pressure regulating piston (10).

4. A gas safety protection pressure regulating device according to claim 3, characterized in that: The upper wall of the housing (1) is provided with a through hole through which the end of the electric push rod (11) slides, and a sealing ring is provided at the through hole.

5. A gas safety protection pressure regulating device according to claim 1, characterized in that: The upper inner wall of the housing (1) is provided with a guide cover (14) that matches the pressure regulating piston (10), and the pressure regulating piston (10) is slidably disposed in the guide cover (14).

6. A gas safety protection pressure regulating device according to claim 1, characterized in that: The bottom surface of the pressure regulating piston (10) is a plane.

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