One-way valve structure with pressure equalizing and flow limiting functions

Abstract

The one-way valve structure comprises a valve cover, a valve body and an electromagnetic valve, the valve cover is installed on the valve body through a fixing screw, the electromagnetic valve is fixed to the rear end of the valve body through a connecting screw, two sets of pins are arranged on the electromagnetic valve, two sets of air inlet connecting ports are formed in the upper portion of the valve body, and the air inlet connecting ports are communicated with the valve cover. Two throttling bridges are arranged behind a valve element of the valve body, one-way diaphragms are arranged behind the throttling bridges, and a sealing ring is installed at the connecting position of the valve cover and the valve body. The structure is simple, and through on-off control of the electromagnetic valve, the effects of adjusting the pressure of the two cavities and achieving one-way circulation of gas are achieved; pressure adjustment of the two cavities can be achieved, and one-way circulation of gas can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of one-way valves with equalizing pressure and limiting flow, in particular to a one-way valve structure with equalizing pressure and limiting flow. Background Art

[0002] In gas control systems, one-way valves are an important control element and are widely used in various fields. The main function of a one-way valve is to allow gas to flow freely in one direction and to prevent gas flow in the opposite direction. However, with the continuous development of technology and the increasing demand for applications, the traditional one-way valve structure can no longer meet the requirements for high precision, high efficiency and high safety.

[0003] In the traditional one-way valve design, only the basic function of one-way flow is often considered, while the pressure fluctuation, flow change and potential leakage problems that may occur when the fluid passes through the valve are ignored. These problems may not only lead to a decrease in system efficiency, but also threaten system safety. Utility Model Content

[0004] The technical problem solved by the utility model is to overcome the defects mentioned in the background technology and provide a one-way valve structure with pressure equalization and flow limiting.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a one-way valve structure with pressure equalization and flow limiting, comprising a valve cover, a valve body, a solenoid valve and an air outlet, the valve cover being mounted on the valve body by fixing screws, and a solenoid valve being fixed to the rear end of the valve body by connecting screws, two groups of pins being arranged on the solenoid valve, and two groups of air inlet connection ports being opened above the valve body, two groups of throttling bridges being arranged behind the valve core of the valve body, and a one-way diaphragm being arranged behind the throttling bridge, and a sealing ring being installed at the connection between the valve cover and the valve body.

[0006] Furthermore, the pin of the solenoid valve is connected to an external control circuit.

[0007] Furthermore, two groups of flow channel guide structures are arranged inside the valve body, and throttling bridges are installed in sequence inside the two groups of flow channels.

[0008] Furthermore, the air outlet is a circular tube structure, and a protruding structure is provided at the front end of the circular tube to install the hose.

[0009] Furthermore, the sealing ring adopts a square structure made of rubber material.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The structure is simple, and the on-off control of the solenoid valve can adjust the pressure of the two cavities and realize the one-way flow of gas. It can adjust the pressure of the two cavities and realize the one-way flow of gas;

[0012] 2. The design of the throttling bridge can limit the flow of the fluid and prevent the fluid pressure from being too high or too low, thereby achieving the effect of equalizing pressure and limiting flow; the one-way diaphragm ensures that the fluid can only flow in the predetermined direction to prevent backflow; the solenoid valve is connected to the external circuit through the pin, which can realize remote control of the opening and closing of the valve, which is convenient and fast; through the installation of the sealing ring, ensure that the connection between the valve cover and the valve body has good sealing to prevent fluid leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the structural disassembly of the utility model.

[0015] Numbers in the figure: 1. Valve cover; 2. Valve body; 3. Solenoid valve; 4. Pin; 5. Air inlet connection port; 6. Air outlet port; 7. Connecting screw; 8. Throttle bridge; 9. One-way diaphragm; 10. Fixing screw; 11. Sealing ring. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-2 The utility model provides a technical solution: a one-way valve structure with equalizing pressure and limiting flow, comprising a valve cover 1, a valve body 2 and a solenoid valve 3, the valve cover 1 is mounted on the valve body 2 by means of fixing screws 10, and the solenoid valve 3 is fixed to the rear end of the valve body 2 by means of connecting screws 7, two groups of pins 4 are arranged on the solenoid valve 3, and two groups of air inlet connection ports 5 are opened above the valve body 2, two groups of throttling bridges 8 are arranged behind the valve core of the valve body 2, and a one-way diaphragm 9 is arranged behind the throttling bridge 8, and a sealing ring 11 is installed at the connection between the valve cover 1 and the valve body 2.

[0018] The core function of the one-way valve is to ensure that the gas can only flow in one direction; this is mainly achieved through the one-way diaphragm 9, which allows the gas to pass under the action of positive pressure, and closes under the action of reverse pressure to prevent the gas from flowing back; the throttling bridge 8 plays the role of equalizing pressure and limiting flow in the one-way valve; when the gas passes through the throttling bridge, the flow rate of the gas will slow down and the flow rate will be restricted due to the design of the bridge such as a narrow channel or a specific geometric shape; this can ensure the stable flow of gas in the system and prevent damage to the system due to excessive flow; the solenoid valve 3 is another important component of the one-way valve; by controlling the opening and closing of the solenoid valve, the on-off state of the one-way valve can be remotely controlled; when the solenoid valve is closed, even if the gas is under positive pressure, the one-way valve will close to prevent the gas from passing; this electronic control function makes the use of the one-way valve more flexible and convenient; the sealing ring 11 ensures that the connection between the valve cover 1 and the valve body 2 has good sealing to prevent gas leakage; this is crucial to ensure the normal operation of the one-way valve and the safety of the system.

[0019] Pin 4 of the solenoid valve 3 is connected to an external control circuit, which indirectly controls the state of the solenoid valve by using a relay or PLC to receive a signal from the external control circuit and control the power-on state of the solenoid valve according to the signal. In this way, when the external control circuit sends a specific signal, the relay or PLC will control the power-on state of the solenoid valve, thereby realizing the switching of the gas circuit.

[0020] Two sets of flow channel guide structures are arranged inside the valve body 2, and throttling bridges 8 are sequentially installed inside the two sets of flow channels. The function of the flow channel guide structure is to ensure that the medium flows along a predetermined path inside the valve body, thereby realizing a specific control function. Throttling bridges 8 are sequentially installed inside the two sets of flow channels. The throttling bridges are usually used to control the flow rate of the fluid. By adjusting the position or structure of the throttling bridge, the flow resistance of the fluid can be changed, thereby realizing precise control of the flow rate.

[0021] The air outlet 6 is a round tube structure, and a protruding structure is provided at the front end of the round tube to install the hose; the sealing ring 11 is a square structure made of rubber material.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A one-way valve structure with pressure equalization and flow limiting, characterized in that: The invention comprises a valve cover (1), a valve body (2), a solenoid valve (3) and an air outlet (6); the valve cover (1) is mounted on the valve body (2) by means of fixing screws (10), and the solenoid valve (3) is fixed to the rear end of the valve body (2) by means of connecting screws (7); two groups of pins (4) are arranged on the solenoid valve (3), and two groups of air inlet connection ports (5) are opened above the valve body (2); two groups of throttling bridges (8) are arranged behind the valve core of the valve body (2), and a one-way diaphragm (9) is arranged behind the throttling bridge (8); and a sealing ring (11) is installed at the connection between the valve cover (1) and the valve body (2).

2. A one-way valve structure with pressure equalization and flow limiting according to claim 1, characterized in that: The pin (4) of the solenoid valve (3) is connected to an external control circuit.

3. A one-way valve structure with pressure equalization and flow limiting according to claim 2, characterized in that: Two groups of flow channel guide structures are arranged inside the valve body (2), and throttling bridges (8) are installed in sequence inside the two groups of flow channels.

4. A one-way valve structure with pressure equalization and flow limiting according to claim 3, characterized in that: The air outlet (6) is a circular tube structure, and a protruding structure is provided at the front end of the circular tube for mounting a hose.

5. A one-way valve structure with pressure equalization and flow limiting according to claim 4, characterized in that: The sealing ring (11) is a square structure made of rubber material.

Images