Program-controlled pressure regulating valve

Abstract

The embodiment of the utility model relates to the technical field of pressure regulating valves, and discloses a program-controlled pressure regulating valve. The program control pressure regulating valve comprises a main body, an air inlet channel and an air outlet channel are arranged in the main body, and a main pressure reducing valve and a driving air channel are further arranged in the main body. The main pressure reducing valve comprises a first transmission assembly, and the first transmission assembly is provided with a blocking position and a communicating position. When the first transmission assembly is located at the blocking position, the air inlet channel does not communicate with the air outlet channel; when the first transmission assembly is located at the communicating position, the air inlet channel communicates with the air outlet channel through the main pressure reducing valve. The driving air channel comprises a main spring cavity, when the main spring cavity contracts and expands, the first transmission assembly is switched between the blocking position and the communicating position, the pressure regulating valve is integrally designed and provided with the driving air channel, the installation space of a system is saved, and cost is reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of pressure regulating valves, and in particular to a programmable pressure regulating valve. Background Art

[0002] A pressure regulating valve is a valve that reduces the inlet pressure to the required outlet pressure by adjusting it, and relies on the energy of the medium itself to keep the outlet pressure stable. From the perspective of fluid mechanics, a pressure regulating valve is a throttling device with variable local resistance. By changing the throttling area, the flow rate and the kinetic energy of the fluid are changed, resulting in different pressure losses, thereby achieving the purpose of reducing pressure. Pressure reducing valves are often used in pneumatic or hydraulic equipment in the fields of manufacturing and processing, and engineering control, especially in some production lines. A production line is often equipped with multiple pneumatic or hydraulic control systems at the same time, and each system needs to be equipped with at least one pressure regulating valve, so the use of pressure regulating valves in actual production operations is particularly large.

[0003] With the development of industrial technology and the improvement of actual operating standards, the current use of pressure regulating valves needs to be used in conjunction with drive control components. The additional drive control components not only need to be equipped with a separate power source, but also need to be separately planned in the overall design layout. Space, which not only makes the structure cumbersome and complicated, but also increases the probability of equipment failure, and increases the user's cost investment. Utility Model Content

[0004] The current pressure regulating valve needs to be used in conjunction with a drive control component and needs to be equipped with a separate power source. The structure is cumbersome and complicated, which increases the cost investment of users.

[0005] In order to solve the above problems, an embodiment of the present application provides a program-controlled pressure regulating valve, which includes:

[0006] A main body, an air inlet channel and an air outlet channel are arranged in the main body, and a main pressure reducing valve and a driving air channel are also arranged in the main body; the main pressure reducing valve includes a first transmission component, and the first transmission component has a blocking position and a connecting position; when the first transmission component is in the blocking position, the air inlet channel and the air outlet channel are not connected; when the first transmission component is in the connecting position, the air inlet channel and the air outlet channel are connected through the main pressure reducing valve; the driving air channel includes a main spring chamber, and when the main spring chamber contracts and expands, the first transmission component switches between the blocking position and the connecting position.

[0007] The purpose of the embodiment of the present application is to provide a programmable pressure regulating valve with its own driving air channel, which does not require external supply of control air; reduces the valves and pipe accessories related to the driving air circuit, saving installation space; in terms of economic cost, it can reduce the cost of valves and pipe accessories related to the control air circuit.

[0008] In some embodiments, a driving gas pressure reducing valve is provided on the driving gas channel, and the driving gas pressure reducing valve is used to adjust the gas pressure in the driving gas channel.

[0009] In some embodiments, a flow diversion component is further provided on the driving gas channel, and the driving gas pressure reducing valve and the flow diversion component are sequentially arranged along the driving gas flow direction.

[0010] In some embodiments, the main pressure reducing valve further includes a second transmission assembly, the second transmission assembly is fixedly connected to the bottom of the first transmission assembly, and the gap between the second transmission assembly and the diverter assembly forms a main spring chamber.

[0011] In some embodiments, the diversion assembly includes a first solenoid valve and a second solenoid valve, and the first solenoid valve, the main spring chamber and the second solenoid valve are arranged in sequence along the flow direction of the driving gas; the first solenoid valve and the second solenoid valve control the contraction and expansion of the main spring chamber by controlling the air pressure in the main spring chamber; the contraction and expansion of the main spring chamber control the movement of the first transmission assembly and the second transmission assembly, so that the first transmission assembly switches between a blocking position and a connecting position.

[0012] In some embodiments, a solenoid valve protection cover is disposed outside the first solenoid valve and the second solenoid valve.

[0013] In some embodiments, the air inlet of the driving air channel is connected to the air inlet channel for obtaining driving air from the air inlet channel; the exhaust port of the driving air channel is arranged on the outer surface of the main body for exhausting the driving air.

[0014] In some embodiments, a pressure sensor is disposed in the air outlet channel, and the pressure sensor is used to monitor the air pressure in the air outlet channel.

[0015] In some embodiments, a plurality of mounting holes are provided on the outer surface of the main body, and the mounting holes are used for external fixation of the main body.

[0016] In some embodiments, an inlet joint is provided at the air inlet of the air inlet channel, and the inlet joint is used for the air flow to enter the air inlet channel. An outlet joint is provided at the air outlet of the air outlet channel, and the outlet joint is used for the air flow to discharge the air outlet channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0018] Figure 1 is a cross-sectional view of a programmable pressure regulating valve provided in some embodiments of the present application;

[0019] Figure 2It is a structural view of a flow diversion component provided by some embodiments of the present application;

[0020] Figure 3 This is a schematic diagram of a programmable pressure regulating valve provided in some embodiments of the present application.

[0021] Explanation of the accompanying drawings: 11. main body; 12. main pressure reducing valve; 121. first transmission member; 122. second transmission member; 13. air inlet channel; 14. driving air channel; 15. driving air pressure reducing valve; 16. main spring chamber; 17. shunt assembly; 171. first solenoid valve; 172. second solenoid valve; 173. first shunt pipe; 174. second shunt pipe; 175. third shunt pipe; 176. fourth shunt pipe; 18. exhaust port; 19. pressure sensor; 20. air outlet channel; 21. solenoid valve protective cover; 22. inlet connector; 23. outlet connector; 24. mounting hole. DETAILED DESCRIPTION

[0022] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, each embodiment of the present application will be described in detail below in conjunction with the accompanying drawings. However, it will be appreciated by those skilled in the art that in each embodiment of the present application, many technical details are proposed in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present application can also be implemented. The division of the following embodiments is for the convenience of description, and the specific implementation of the present application should not constitute any limitation, and the various embodiments can be combined with each other and referenced to each other without contradiction.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0024] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0025] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0026] Reference Figures 1 to 3 , the embodiments of the present application provide the following technical solutions:

[0027] like Figure 1 As shown, an air inlet channel 13 and an air outlet channel 20 are provided in the main body 11, and a main pressure reducing valve 12 and a driving air channel 14 are also provided in the main body 11; the main pressure reducing valve 12 includes a first transmission component 121, and the first transmission component 121 has a blocking position and a connecting position; when the first transmission component 121 is located at the blocking position, the air inlet channel 13 and the air outlet channel 20 are not connected; when the first transmission component 121 is located at the connecting position, the air inlet channel 13 and the air outlet channel 20 are connected through the main pressure reducing valve 12; the driving air channel 14 includes a main spring chamber 16, and when the main spring chamber 16 contracts and expands, the first transmission component 121 switches between the blocking position and the connecting position.

[0028] It should be noted that: after the high-pressure gas enters the main body from the air inlet channel 13, it is divided into two parts, one part of the airflow enters the main pressure-reducing valve 12 as the pressure-reducing airflow, and the other part of the airflow enters the driving air channel 14 as the driving airflow; when the first transmission component 121 of the main pressure-reducing valve 12 is in the connecting position, the pressure-reducing airflow enters the air outlet channel 20 through the main pressure-reducing valve 12; when the first transmission component 121 of the main pressure-reducing valve is in the blocking position, the pressure-reducing airflow is blocked by the first transmission component 121 and stays in the main pressure-reducing valve 12;

[0029] The main spring chamber 16 of the driving air channel 14 is in a contraction and expansion state respectively under the action of the driving airflow. When the main spring chamber 16 is in a contraction state, the first transmission assembly 121 is in a blocking position; when the main spring chamber 16 is in an expansion state, the first transmission assembly 121 is in a connecting position.

[0030] like Figure 1 As shown, a driving gas pressure reducing valve 15 is provided on the driving gas channel 14 , and the driving gas pressure reducing valve 15 is used to adjust the gas pressure in the driving gas channel 14 .

[0031] It should be noted that when the high-pressure gas enters the driving gas channel 14 , it first enters the driving gas pressure reducing valve 15 , and the driving gas pressure reducing valve 15 reduces the high-pressure gas entering the driving gas channel 14 to a constant pressure.

[0032] like Figure 1 As shown, a flow splitter assembly 17 is also provided on the driving gas channel 14, and the driving gas pressure reducing valve 15 and the flow splitter assembly 17 are sequentially arranged along the driving gas flow direction.

[0033] It should be noted that the driving air flow reduced to a constant pressure by the driving air pressure reducing valve 15 enters the flow splitting component 17 through the connecting hole in the main body 11 .

[0034] like Figure 1 As shown, the main pressure reducing valve 12 further includes a second transmission assembly 122 , which is fixedly connected to the bottom of the first transmission assembly 121 , and a gap between the second transmission assembly 122 and the diverter assembly 17 forms a main spring chamber 16 .

[0035] It should be noted that the upper end surface of the diverter assembly 17 is concave to form a sliding cavity, and the lower end of the second transmission assembly 122 can slide up and down in the sliding cavity. The gap between the second transmission assembly 122 and the diverter assembly 17 forms the main spring cavity 16. At the same time, a sealing treatment is performed at the joint of the second transmission assembly 122 and the diverter assembly 17.

[0036] like Figure 2 As shown, the diverter assembly 17 includes a first solenoid valve 171 and a second solenoid valve 172, and the first solenoid valve 171, the main spring chamber 16 and the second solenoid valve 172 are arranged in sequence along the flow direction of the driving gas; the first solenoid valve 171 and the second solenoid valve 172 control the contraction and expansion of the main spring chamber 16 by controlling the air pressure in the main spring chamber 16; the contraction and expansion of the main spring chamber 16 control the movement of the first transmission assembly 121 and the second transmission assembly 122, so that the first transmission assembly 121 switches between the blocking position and the connecting position.

[0037] It should be noted that: the flow splitter assembly 17 is provided with a first air passage 173, a second air passage 174, a third air passage 175 and a fourth air passage 176; the driving air flow discharged from the driving air pressure reducing valve 15 enters the first air passage 173 in the flow splitter assembly 17, enters the first solenoid valve 171 through the guidance of the first air passage 173, then enters the second air passage 174 through the air outlet of the first solenoid valve 171, enters the main spring chamber 16 through the guidance of the second air passage 174, the driving air flow entering the main spring chamber 16 enters the third air passage 175, enters the second solenoid valve 172 through the guidance of the third air passage 175, and the air flow discharged from the second solenoid valve 172 is discharged through the exhaust port 18 through the guidance of the fourth air passage 176;

[0038] The first solenoid valve 171 and the second solenoid valve 172 are provided with a control device for controlling the opening or closing state of the first solenoid valve 171 and the second solenoid valve 172 .

[0039] When the first solenoid valve 171 is opened and the second solenoid valve 172 is closed, the driving airflow is blocked by the second solenoid valve 172 and continuously accumulates in the main spring chamber 16, so that the pressure in the main spring chamber 16 is continuously increased, and the main spring chamber 16 is continuously expanded. The expanded main spring chamber 16 causes the second transmission assembly 122 to move upward, and at the same time, the first transmission assembly 121 moves upward under the drive of the second transmission assembly 122, so that the first transmission assembly 121 is in a connected position;

[0040] When the first solenoid valve 171 is closed and the second solenoid valve 172 is opened, the driving airflow is blocked by the first solenoid valve 171, and the injection of new driving airflow into the main spring chamber 16 stops. The driving airflow accumulated in the main spring chamber 16 enters the second solenoid valve 172 from the third air passage 175, and enters the fourth air passage 176 through the second solenoid valve 172, and finally is discharged through the exhaust port 18. During this process, the pressure in the main spring chamber 16 is continuously reduced, the main spring chamber 16 is continuously contracted, the second transmission assembly 122 moves downward, and the first transmission assembly 121 moves downward under the joint action of the second transmission assembly 122 and the spring above the first transmission assembly 121, so that the first transmission assembly 121 is in a blocking position;

[0041] When the first solenoid valve 171 and the second solenoid valve 172 are closed at the same time, the first solenoid valve 171 and the second solenoid valve 172 respectively block the input of the driving airflow in the first air path 173 and the output of the driving airflow in the third air path 175, so that the air pressure in the main spring chamber 16 remains constant, thereby fixing the positions of the second transmission assembly 122 and the first transmission assembly 121 at this time, so that the pressure of the decompression airflow remains at a constant value.

[0042] When the first solenoid valve 171 and the second solenoid valve 172 are opened at the same time, the entire driving air channel 14 maintains normal air flow, the air pressure in the main spring chamber 16 does not change, and the first transmission assembly 121 is in a blocking position under the action of its upper spring.

[0043] like Figure 3 As shown, a solenoid valve protection cover 21 is disposed outside the first solenoid valve 171 and the second solenoid valve 172 .

[0044] It should be noted that the solenoid valve protection cover 21 is fixedly connected to the diverter assembly 17 , and the solenoid valve protection cover 21 serves to prevent the first solenoid valve 171 and the second solenoid valve 172 from being collided.

[0045] like Figure 2 As shown, the air inlet of the driving air channel 14 is connected to the air inlet channel 13 for obtaining driving air from the air inlet channel 13; the exhaust port 18 of the driving air channel 14 is arranged on the outer surface of the main body 11 for exhausting the driving air.

[0046] It should be noted that the exhaust port 18 is used to drive the exhaust of airflow.

[0047] like Figure 1 As shown, a pressure sensor 19 is disposed in the air outlet channel 20 , and the pressure sensor 19 is used to monitor the air pressure in the air outlet channel 20 .

[0048] It should be noted that the pressure sensor 19 is equipped with an electronic display device for displaying the real-time pressure value of the decompression airflow.

[0049] like Figure 3 As shown, a plurality of mounting holes 24 are provided on the outer surface of the main body 11 , and the mounting holes 24 are used for external fixing of the main body 11 .

[0050] It should be noted that threads may be provided in the plurality of mounting holes 24 to fix the main body 11 to other devices via bolts.

[0051] like Figure 3 As shown, an interface joint 22 is provided at the air inlet of the air inlet channel 13, and the inlet joint 22 is used for the air flow to enter the air inlet channel 13. An outlet joint 23 is provided at the air outlet of the air outlet channel 20, and the outlet joint 23 is used for the air flow to discharge from the air outlet channel 20.

[0052] It should be noted that the inlet connector 22 is used to connect to the high-pressure gas source equipment, and the outlet connector 23 is used to connect to the lower-level equipment. The connection methods of the two places include hard pipe thread connection or hose clamp connection.

[0053] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present application, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present application.

Claims

1. A program-controlled pressure regulating valve, comprising a main body, wherein an air inlet channel and an air outlet channel are arranged in the main body, characterized in that: A main pressure reducing valve and a driving air channel are also provided in the main body; The main pressure reducing valve comprises a first transmission assembly, wherein the first transmission assembly has a blocking position and a connecting position; When the first transmission assembly is located at the blocking position, the air inlet channel and the air outlet channel are not connected; When the first transmission assembly is located at the communication position, the air inlet passage and the air outlet passage are communicated through the main pressure reducing valve; The driving air channel includes a main spring chamber. When the main spring chamber contracts and expands, the first transmission assembly switches between the blocking position and the connecting position.

2. A program-controlled pressure regulating valve according to claim 1, characterized in that: The driving air channel is provided with a driving air pressure reducing valve, and the driving air pressure reducing valve is used to adjust the air pressure in the driving air channel.

3. A program-controlled pressure regulating valve according to claim 2, characterized in that: The driving gas channel is also provided with a flow diversion component, and the driving gas pressure reducing valve and the flow diversion component are sequentially arranged along the driving gas flow direction.

4. A program-controlled pressure regulating valve according to claim 3, characterized in that: The main pressure reducing valve further comprises a second transmission assembly, wherein the second transmission assembly is fixedly connected to the bottom of the first transmission assembly, and a gap between the second transmission assembly and the flow diversion assembly forms the main spring chamber.

5. A program-controlled pressure regulating valve according to claim 4, characterized in that: The flow splitter assembly includes a first solenoid valve and a second solenoid valve, wherein the first solenoid valve, the main spring chamber and the second solenoid valve are sequentially arranged along the flow direction of the driving gas; the first solenoid valve and the second solenoid valve control the contraction and expansion of the main spring chamber by controlling the air pressure in the main spring chamber; The contraction and expansion of the main spring chamber controls the movement of the first transmission assembly and the second transmission assembly, so that the first transmission assembly switches between the blocking position and the connecting position.

6. A program-controlled pressure regulating valve according to claim 5, characterized in that: Solenoid valve protection covers are arranged on the outer sides of the first solenoid valve and the second solenoid valve.

7. A program-controlled pressure regulating valve according to claim 1, characterized in that: The air inlet of the driving air channel is connected to the air inlet channel and is used to obtain driving air from the air inlet channel; The exhaust port of the driving air channel is arranged on the outer surface of the main body and is used for exhausting the driving air.

8. The program-controlled pressure regulating valve according to claim 1, characterized in that: A pressure sensor is arranged in the air outlet channel, and the pressure sensor is used to monitor the air pressure in the air outlet channel.

9. A program-controlled pressure regulating valve according to claim 1, characterized in that: The outer surface of the main body is provided with a plurality of mounting holes, and the mounting holes are used for external fixing of the main body.

10. The program-controlled pressure regulating valve according to claim 1, characterized in that: An inlet joint is provided at the air inlet of the air inlet channel, and the inlet joint is used for airflow to enter the air inlet channel. An outlet joint is provided at the air outlet of the air outlet channel, and the outlet joint is used for airflow to discharge from the air outlet channel.

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