Valve terminal with built-in pressure regulating valve and control system comprising same

Abstract

The utility model provides a valve terminal with a built-in pressure regulating valve and a control system comprising the valve terminal. The valve terminal comprises a through air channel formed in a valve terminal body in the axial direction and at least one working air channel formed in the longitudinal direction. The air inlet connector is installed at the air inlet end of the air channel. The built-in pressure regulating valve is installed at the air outlet end of the air channel, a containing cavity is formed in the air outlet end of the air channel and used for containing the built-in pressure regulating valve, an adjusting knob is arranged at one end of the built-in pressure regulating valve and protrudes out of the valve terminal body from the containing cavity, and an air outlet of the built-in pressure regulating valve is communicated with the working air channel and used for adjusting the air outlet pressure. The built-in pressure regulating valve is retracted into the valve island, so that the edge of the pressure regulating valve is basically flush with the edge of the valve island, the pressure regulating operation is not influenced, the air channel is shortened, and the structure is compact. The size of a valve terminal can be reduced, and therefore the problems that in an existing structure, a connector is poor in expansibility, and pressure adjustment is inconvenient are solved.

Description

Technical Field

[0001] The utility model relates to the field of process control equipment, in particular to a valve island with a built-in pressure regulating valve and a control system comprising the valve island. Background Art

[0002] A valve island is a control component composed of multiple electrically controlled valves, which integrates signal input and output and signal control. In the prior art, a valve island is usually used in front-end pneumatic control applications.

[0003] In some special occasions (such as explosion-proof), the control of related gas valves and water valves cannot be completed by solenoid valves, and generally the on-off and reversing of these working valves need to be controlled by gas circuits. This requires a valve island to divide the gas circuit to achieve the purpose of simultaneous gas circuit control.

[0004] In the valve island, different gas circuits require different control conditions, such as different gas pressures, normally open or normally closed, etc. This requires the use of a small built-in pressure regulating valve, which can coordinate different gas circuits to work simultaneously.

[0005] The existing valve island has a complex structure, resulting in a large volume and poor space utilization. In particular, the built-in pressure regulating valve cannot be completely built-in, and will extend outside the valve island as a whole, occupying the space in the control box.

[0006] In view of this, the inventor of the present application has designed a valve island with a built-in pressure regulating valve and a control system including the same, in order to overcome the above technical problems. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the defects of the valve island in the prior art, such as complex structure, large volume, low space utilization, etc., and to provide a valve island with a built-in pressure regulating valve and a control system including the same.

[0008] The utility model solves the above technical problems through the following technical solutions:

[0009] A valve island with a built-in pressure regulating valve, characterized in that the valve island comprises:

[0010] A valve island body, wherein a through air passage is provided in the axial direction and at least one working air passage is provided in the longitudinal direction;

[0011] An air inlet interface, the air inlet interface being installed at the air inlet end of the airway;

[0012] A built-in pressure regulating valve is installed at the air outlet end of the air duct. The air outlet end of the air duct is provided with a accommodating cavity for accommodating the built-in pressure regulating valve. One end of the built-in pressure regulating valve is set as an adjusting knob. The adjusting knob protrudes from the accommodating cavity to the outside of the valve island body. The air outlet of the built-in pressure regulating valve is connected to the working air duct for adjusting the outlet pressure.

[0013] According to one embodiment of the utility model, the other end of the built-in pressure regulating valve is the air inlet end of the pressure regulating valve, the air inlet end of the pressure regulating valve faces the inside of the airway, and the adjusting knob faces the outside of the airway, and is used to adjust the outlet pressure of the outlet.

[0014] According to an embodiment of the utility model, the air outlet is arranged on the built-in pressure regulating valve, and is located between the air inlet end of the pressure regulating valve and the adjusting knob.

[0015] According to an embodiment of the utility model, the air outlet is close to the air inlet end of the pressure regulating valve.

[0016] According to an embodiment of the utility model, a plurality of gas outlet connectors are installed on the valve island body, and the gas outlet connectors are connected to the corresponding working airways.

[0017] According to an embodiment of the present invention, a pressure gauge is installed on the valve island body to detect the pressure.

[0018] According to an embodiment of the present utility model, an air pressure switch is also installed on the valve island body, and the air pressure switch is arranged on the side of the valve island body.

[0019] According to an embodiment of the present utility model, a plurality of piezoelectric valves are further arranged on the valve island body.

[0020] The utility model also provides a control system, which is characterized in that the control system comprises the valve island with a built-in pressure regulating valve as described above.

[0021] The positive and progressive effects of the utility model are:

[0022] The valve island with a built-in pressure regulating valve and the control system including the valve island of the utility model have the following advantages:

[0023] 1. The built-in pressure regulating valve is retracted into the valve island, so that the pressure regulating valve is basically flush with the edge of the valve island without affecting the pressure regulating operation, shortening the airway and making the structure compact.

[0024] Second, it can reduce the size of the valve island, thereby solving the problems of poor joint expandability and inconvenient pressure regulation in the existing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always represent the same features, wherein:

[0026] Figure 1 The utility model is a schematic structural diagram of a valve island with a built-in pressure regulating valve.

[0027] Figure 2 The utility model is a schematic diagram of the internal structure of the valve island with a built-in pressure regulating valve.

[0028] Figure 3 The utility model is a schematic diagram of the connection between the working airway and the built-in regulating valve in the valve island with a built-in pressure regulating valve.

[0029] Figure 4 It is a schematic diagram of the working air passage in the valve island with a built-in pressure regulating valve of the utility model, after the air is discharged through the piezoelectric valve switch.

[0030] Figure 5 The utility model is a schematic structural diagram of a built-in regulating valve in a valve island with a built-in pressure regulating valve.

[0031] Figure 6 It is a structural schematic diagram of the air inlet end and the air outlet of the built-in regulating valve in the valve island with a built-in pressure regulating valve of the utility model.

[0032] [Reference Signs]

[0033] Valve island body 10

[0034] Air inlet 20

[0035] Built-in pressure regulating valve 30

[0036] Airway 11

[0037] Working airway 12

[0038] Air inlet end 111

[0039] Air outlet end 112

[0040] Outlet port 31 of built-in pressure regulating valve

[0041] Pressure regulating valve inlet end 32

[0042] Adjustment knob 33

[0043] Accommodating chamber 113

[0044] Air outlet connector 40

[0045] Pressure gauge 50

[0046] Air pressure switch 60

[0047] Piezo valve 70

[0048] The outlet end 121 of the working airway DETAILED DESCRIPTION

[0049] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0050] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.Preferred embodiments of the present invention will now be described in detail, examples of which are shown in the accompanying drawings.Where possible, the same reference numerals will be used throughout the drawings to represent the same or similar parts.

[0051] In addition, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the specification of the present invention may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article.

[0052] Furthermore, it is required that the present invention be understood not only by the actual terms used but also by the meanings contained in each term.

[0053] like Figures 1 to 6 As shown, the utility model discloses a valve island with a built-in pressure regulating valve, which includes: a valve island body 10, an air inlet interface 20 and a built-in pressure regulating valve 30. In the valve island body 10, a through air passage 11 is opened along the axial position, and at least one working air passage 12 is opened along the longitudinal position. The air inlet interface 20 is installed at the air inlet end 111 of the air passage 11. The built-in pressure regulating valve 30 is installed at the air outlet end 112 of the air passage 11. The air outlet end 112 of the air passage 11 is provided with a accommodating cavity 113 for accommodating the built-in pressure regulating valve 30. One end of the built-in pressure regulating valve 30 is set as an adjusting knob 33, and the adjusting knob 30 protrudes from the accommodating cavity 113 to the outside of the valve island body 10.

[0054] The gas outlet 31 of the built-in pressure regulating valve 30 is communicated with the working gas channel 12 for adjusting the gas outlet pressure.

[0055] Preferably, in this embodiment, the other end of the built-in pressure regulating valve 30 is set as the pressure regulating valve inlet end 32, the pressure regulating valve inlet end 32 is installed in the air duct 11, and the adjusting knob 33 is installed outside the air duct 11 to adjust the outlet pressure of the outlet 31.

[0056] In this embodiment, the air outlet 31 is preferably arranged on the built-in pressure regulating valve 30, between the pressure regulating valve air inlet end 32 and the adjusting knob 33. Furthermore, the air outlet 31 is arranged close to the pressure regulating valve air inlet end 32.

[0057] In addition, a plurality of gas outlet connectors 40 are installed on the valve island body 10, and the gas outlet connectors 40 are connected to the corresponding working airway 12. The gas outlet 31 of the built-in pressure regulating valve 30 is connected to the working airway 12 through a connecting pipe 34. A pressure gauge 50 is also installed on the valve island body 10 for detecting the pressure. An air pressure switch 60 is also installed on the valve island body 10, and the air pressure switch 60 is arranged on the side of the valve island body 10. A plurality of piezoelectric valves 70 are also arranged on the valve island body 10 for controlling the connection and disconnection between the gas outlet connector 40 and the working airway 12. There is always air pressure in the working airway 12, and the piezoelectric valve 70 here is equivalent to a switch. When the piezoelectric valve 70 receives a signal to open, the gas in the working airway 12 is discharged from the gas outlet connector 40. When the piezoelectric valve 70 receives a signal to close, no gas is discharged from the gas outlet connector 40.

[0058] According to the above structural description, the working principle of the valve island with a built-in pressure regulating valve of the utility model is:

[0059] Compressed air enters the built-in pressure regulating valve 30 from the bottom, and by rotating the adjusting knob 33 of the built-in pressure regulating valve up and down (built-in spring), the size of the air inlet and outlet is controlled, thereby achieving control of the outlet pressure.

[0060] The compressed air with stable pressure coming out of the built-in pressure regulating valve 30 is guided by the working air passage 12 to the working air circuit (such as Figure 3 shown).

[0061] After the air path is connected, the compressed air is transmitted from the air outlet 31 of the built-in pressure regulating valve 30 to the corresponding air-controlled air valve and air-controlled water valve. The compressed air in the valve island enters the air outlet end 121 of the working air channel 12 through the switch of the piezoelectric valve 70, and then enters the air outlet connector 40 (such as Figure 4 shown).

[0062] The utility model also provides a control system, which comprises the valve island with a built-in pressure regulating valve as described above.

[0063] In summary, the valve island with a built-in pressure regulating valve and the control system including the valve island of the utility model have the following advantages:

[0064] 1. The built-in pressure regulating valve is retracted into the valve island, so that the pressure regulating valve is basically flush with the edge of the valve island without affecting the pressure regulating operation, shortening the airway and making the structure compact.

[0065] Second, it can reduce the size of the valve island, thereby solving the problems of poor joint expandability and inconvenient pressure regulation in the existing structure.

[0066] For those skilled in the art, the above invention disclosure is only used as an example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary implementation of the present application.

[0067] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0068] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus facilitate the understanding of one or more embodiments of the invention, in the foregoing description of the embodiments of this application, multiple features are sometimes grouped into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the subject matter of this application requires more features than those mentioned in the claims. In fact, the features of an embodiment are less than all the features of a single embodiment disclosed above.

[0069] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A valve island with a built-in pressure regulating valve, characterized in that: The valve island comprises: A valve island body, wherein a through air passage is provided in the axial direction and at least one working air passage is provided in the longitudinal direction; An air inlet interface, the air inlet interface being installed at the air inlet end of the airway; A built-in pressure regulating valve is installed at the air outlet end of the air duct. The air outlet end of the air duct is provided with a accommodating cavity for accommodating the built-in pressure regulating valve. One end of the built-in pressure regulating valve is set as an adjusting knob. The adjusting knob protrudes from the accommodating cavity to the outside of the valve island body. The air outlet of the built-in pressure regulating valve is connected to the working air duct for adjusting the outlet pressure.

2. The valve island with a built-in pressure regulating valve according to claim 1, characterized in that: The other end of the built-in pressure regulating valve is the air inlet end of the pressure regulating valve, the air inlet end of the pressure regulating valve faces the inside of the airway, and the regulating knob faces the outside of the airway, and is used to adjust the outlet pressure of the air outlet.

3. The valve island with a built-in pressure regulating valve according to claim 2, characterized in that: The air outlet is arranged on the built-in pressure regulating valve and is located between the air inlet end of the pressure regulating valve and the regulating knob.

4. The valve island with a built-in pressure regulating valve according to claim 3, characterized in that: The air outlet is close to the air inlet end of the pressure regulating valve.

5. The valve island with a built-in pressure regulating valve according to claim 1, characterized in that: A plurality of air outlet connectors are installed on the valve island body, and the air outlet connectors are connected to the corresponding working air passages.

6. The valve island with a built-in pressure regulating valve according to claim 1, characterized in that: A pressure gauge is installed on the valve island body to detect the pressure.

7. The valve island with a built-in pressure regulating valve according to claim 1, characterized in that: An air pressure switch is also installed on the valve island body, and the air pressure switch is arranged on the side of the valve island body.

8. The valve island with a built-in pressure regulating valve according to claim 1, characterized in that: A plurality of piezoelectric valves are also arranged on the valve island body.

9. A control system, characterized in that: The control system comprises a valve island with a built-in pressure regulating valve as claimed in any one of claims 1 to 8.

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