Pneumatic diaphragm valve assembling structure provided with electromagnetic valve and filtering pressure reducing valve

Abstract

The utility model relates to the field of self-control valves, and discloses a pneumatic diaphragm valve assembly structure provided with an electromagnetic valve and a filtering pressure reducing valve, which comprises a main body component and a connecting component, the main body component comprises a pneumatic diaphragm valve, the electromagnetic valve and the pressure reducing valve, on one hand, the electromagnetic valve is arranged at an air source inlet of the pneumatic diaphragm valve; on the other hand, the inner diameters of the connecting pipes on the electromagnetic valve and the pressure reducing valve are the same; the connecting component comprises a thread mechanism which is used for connecting and communicating the two connecting pipes at the same time. The threaded mechanism is used for replacing an air pipe to install the electromagnetic valve and the pressure reducing valve near the pneumatic diaphragm valve, the distance between the electromagnetic valve and the pressure reducing valve and the distance between the pneumatic diaphragm valves are shortened, the whole device looks compact, simple and attractive, maintenance and inspection are convenient, great convenience is brought to field maintenance personnel, and working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of automatic control valves, in particular to a pneumatic diaphragm valve assembly structure on which a solenoid valve and a filter pressure reducing valve are installed. Background Art

[0002] The pneumatic diaphragm valve is a valve that uses a diaphragm as the opening and closing part. Its main feature is that the diaphragm is used to separate the medium in the valve body from the driving components and the inner cavity of the valve cover, thereby realizing the cutting and control of the medium. The working principle of the pneumatic diaphragm valve is: when the air pressure acts on the diaphragm, the diaphragm will deform, thereby driving the valve plate to move and realize the switching action.

[0003] Pneumatic diaphragm valves use diaphragms as seals, which can effectively avoid material jamming or sticking, and improve the safety of the equipment. Therefore, pneumatic diaphragm valves are widely used in various process gas, liquid, vacuum and other pipelines. It can maintain high safety and reliability in the transmission of chemical media and pure media.

[0004] It is very inconvenient to install solenoid valves and filter pressure reducing valves on existing pneumatic diaphragm valves. Many of them need to be installed far away from the valves and then connected to the valves through air pipes, which is not convenient for on-site inspection and maintenance. Summary of the invention

[0005] Technical problem to be solved: How to install the solenoid valve and the pressure reducing valve close to the pneumatic diaphragm valve.

[0006] Technical solution: The utility model provides a pneumatic diaphragm valve assembly structure for installing a solenoid valve and a filter pressure reducing valve, including a main component and a connecting component: the main component includes a pneumatic diaphragm valve, a solenoid valve and a pressure reducing valve. On the one hand, the solenoid valve is installed at the air source inlet of the pneumatic diaphragm valve; on the other hand, the inner diameters of the connecting pipes on the solenoid valve and the pressure reducing valve are the same; the connecting component includes a threaded mechanism, which is used to simultaneously connect two connecting pipes.

[0007] Furthermore, the thread mechanism includes a pair of threads; at the same time, the inner walls of the two connecting pipes are provided with internal threads that are compatible with the threads on the pair of threads, so that the two ends of the pair of threads can be screwed and connected to the two connecting pipes respectively.

[0008] Furthermore, the thread pair is composed of a central annular protrusion and two spiral tubes at both ends, and a plurality of evenly distributed convex columns in the transverse direction are fixedly connected to the outer peripheral side of the annular protrusion.

[0009] Furthermore, a transverse stud is fixedly connected to the inner side of the protruding column; meanwhile, a plurality of screw holes for connecting with the stud are provided on the outer peripheral side of the annular protrusion.

[0010] Furthermore, a gasket may be sleeved on the outer peripheral side of the stud, and the gasket is located between the inner side of the protruding column and the outer side of the ring protrusion.

[0011] Furthermore, the gasket ring is preferably an elastic ring to fit the outer side of the raised arc surface of the ring.

[0012] Technical effect: In the utility model, a threaded mechanism is used instead of an air pipe to install the solenoid valve and the pressure reducing valve near the pneumatic diaphragm valve, shortening the distance between them and the pneumatic diaphragm valve. The overall appearance is compact, simple and beautiful, and maintenance and inspection are convenient, which brings great convenience to on-site maintenance personnel and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the connection structure of the utility model;

[0016] Figure 3 It is an enlarged schematic diagram of the structure at A of the utility model;

[0017] Figure 4 This is a schematic diagram of the convex column structure of the utility model;

[0018] In the figure: 1, pneumatic diaphragm valve; 2, solenoid valve; 3, pressure reducing valve; 4, connecting pipe; 5, threaded mechanism; 501, pairing thread; 50101, ring protrusion; 50202, screw tube; 502, internal thread; 6, boss; 7, stud; 8, screw hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0020] The pneumatic diaphragm valve assembly structure provided in this specific embodiment for installing a solenoid valve and a filter pressure reducing valve is as follows: Figure 1 and Figure 2 As shown, it includes a main component and a connecting component, wherein:

[0021] The main components include a pneumatic diaphragm valve 1, a solenoid valve 2 and a pressure reducing valve 3. On the one hand, the solenoid valve 2 is installed at the air source inlet of the pneumatic diaphragm valve 1; on the other hand, the inner diameters of the connecting pipes 4 on the solenoid valve 2 and the pressure reducing valve 3 are the same, that is, their connecting parts are the same.

[0022] The connecting member includes a threaded mechanism 5, which is used to simultaneously connect two connecting pipes 4. Figure 3 As shown, the thread mechanism 5 includes a thread 501; at the same time, the inner walls of the two connecting pipes 4 are provided with internal threads 502 adapted to the threads on the thread 501, so that the two ends of the thread 501 can be screwed and connected to the two connecting pipes 4 respectively. In this way, the solenoid valve 2 and the pressure reducing valve 3 are installed near the pneumatic diaphragm valve 1 using the thread 501 instead of the air pipe, shortening the distance between them and the pneumatic diaphragm valve 1.

[0023] like Figure 4 As shown, the thread 501 is composed of a central annular protrusion 50101 and two screw tubes 50202 at both ends, and the outer peripheral side of the annular protrusion 50101 is fixedly connected with a plurality of evenly distributed and transversely distributed bosses 6. The boss 6 is used to form a lever structure to facilitate twisting. Because the connection of the thread 501 is a double-headed spiral, if there is no lever structure, it cannot be guaranteed that when the next end is rotated and untied, the other end will not rotate. In addition, on this basis, considering that the thread 501 is a standard part, it is impractical to directly weld the boss 6, so a horizontal stud 7 is fixedly connected to the inner side of the boss 6; at the same time, the outer peripheral side of the annular protrusion 50101 is provided with a plurality of screw holes 8 for connecting with the stud 7, so that punching on the thread 501 is more convenient than directly welding the boss 6.

[0024] It is worth mentioning that, in order to avoid thread slipping, a gasket can be sleeved on the outer peripheral side of the stud 7, and the gasket is located between the inner side of the boss 6 and the outer side of the annular protrusion 50101. In addition, since the outer side of the annular protrusion 50101 is arc-shaped, the gasket is preferably an elastic ring to adapt to the outer side of the arc surface of the annular protrusion 50101.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pneumatic diaphragm valve assembly structure for installing a solenoid valve and a filter pressure reducing valve, comprising a main body component and a connecting component: The main body component comprises a pneumatic diaphragm valve (1), a solenoid valve (2) and a pressure reducing valve (3), and is characterized in that: On the one hand, the solenoid valve (2) is installed at the air source inlet of the pneumatic diaphragm valve (1); on the other hand, the inner diameters of the connecting pipes (4) on the solenoid valve (2) and the pressure reducing valve (3) are the same; The connecting component comprises a threaded mechanism (5), and the threaded mechanism (5) is used to simultaneously connect two communicating connecting pipes (4).

2. The pneumatic diaphragm valve assembly structure for installing a solenoid valve and a filter pressure reducing valve according to claim 1, characterized in that: The thread mechanism (5) includes a threaded joint (501); at the same time, the inner walls of the two connecting tubes (4) are provided with internal threads (502) that match the threads on the threaded joint (501), so that the two ends of the threaded joint (501) can be screwed together with the two connecting tubes (4) respectively.

3. The pneumatic diaphragm valve assembly structure for installing a solenoid valve and a filter pressure reducing valve according to claim 2, characterized in that: The pair of wires (501) is composed of a central annular protrusion (50101) and two spiral tubes (50202) at both ends. The outer peripheral side of the annular protrusion (50101) is fixedly connected with a plurality of evenly distributed protrusions (6) in the transverse direction.

4. The pneumatic diaphragm valve assembly structure for installing a solenoid valve and a filter pressure reducing valve according to claim 3 is characterized in that: A transverse stud (7) is fixedly connected to the inner side of the protruding column (6); at the same time, a plurality of screw holes (8) for connecting with the stud (7) are provided on the outer peripheral side of the annular protrusion (50101).

5. The pneumatic diaphragm valve assembly structure for installing a solenoid valve and a filter pressure reducing valve according to claim 4, characterized in that: A gasket ring can be sleeved on the outer peripheral side of the stud (7), and the gasket ring is located between the inner side of the protruding column (6) and the outer side of the annular protrusion (50101).

6. The pneumatic diaphragm valve assembly structure for installing a solenoid valve and a filter pressure reducing valve according to claim 5, characterized in that: The gasket ring is an elastic ring that adapts to the outer side of the arc surface of the ring protrusion (50101).

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