Novel stainless steel pneumatic control valve

Abstract

The utility model relates to the technical field of pneumatic control valves, and discloses a novel stainless steel pneumatic control valve which comprises a valve body, a control shell is fixedly arranged at the upper end of the valve body, a recovery cavity is formed in the upper end of the middle in the valve body, a membrane is arranged in the control shell in a sliding mode, and a valve rod is fixedly arranged in the middle of the lower end of the membrane. The lower end of the valve rod extends into the recycling cavity and is fixedly connected with a valve element, a sealing ring is fixedly arranged at the lower end of the valve element, a sealing disc is fixedly arranged in the middle of the interior of the valve body, an inlet and an outlet are formed in the two sides of the valve body respectively, and sliding grooves are formed in the positions, located on the inner walls of the upper end and the lower end of the inlet, of the interior of the valve body. A filtering frame is arranged in the valve body and located at the inlet in a sliding mode, a filtering net is fixedly arranged in the filtering frame, and sliding blocks are fixedly arranged at the upper end and the lower end of the filtering frame. According to the pneumatic control valve, the sealing effect is good when the pneumatic control valve is closed, meanwhile, fluid can be filtered, and the functionality of the pneumatic control valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic control valves, in particular to a new type of stainless steel pneumatic control valve. Background Technique

[0002] As an important part of the industrial control field, the development of stainless steel pneumatic control valves is closely related to the improvement of industrial automation level. With the continuous progress of technology, higher requirements are put forward for the control accuracy, stability and service life of valves. Stainless steel pneumatic control valves play an indispensable role in many industrial scenarios with their unique performance advantages.

[0003] However, most of the existing stainless steel pneumatic control valves only cut off the outlet and the inlet through the valve core. After long-term use, the valve core will be worn, reducing its sealing effect. Therefore, those skilled in the art provide a new type of stainless steel pneumatic control valve to solve the problems raised in the above background technique. Content of the Utility Model

[0004] The purpose of the content of the utility model is to solve the deficiencies existing in the prior art, and a new type of stainless steel pneumatic control valve is proposed. This pneumatic control valve has a good sealing effect when closed, and can filter the fluid at the same time, improving its functionality.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A new type of stainless steel pneumatic control valve, including a valve body, a control shell is fixedly arranged at the upper end of the valve body, a recovery cavity is opened at the upper middle part inside the valve body, a diaphragm is slidably arranged inside the control shell, a valve rod is fixedly arranged at the middle lower part of the diaphragm, the lower end of the valve rod extends into the recovery cavity and is fixedly connected with a valve core, a sealing ring is fixedly arranged at the lower end of the valve core, and a sealing disc is fixedly arranged at the middle part inside the valve body;

[0007] Inlets and outlets are respectively opened at both inner parts of the valve body. Sliding grooves are opened at the upper and lower inner walls of the valve body at the inlet. A filter frame is slidably arranged inside the valve body at the inlet. A filter screen is fixedly arranged inside the filter frame. Sliders are fixedly arranged at both the upper and lower ends of the filter frame. Second springs are fixedly arranged at one side of both the sliding grooves. Buffer plates are fixedly connected to the ends of both the second springs.

[0008] Further, a clamping groove is opened on the upper end surface of the sealing disc, and the sealing ring is clamped inside the clamping groove;

[0009] Through the above technical solution, by clamping the sealing ring into the clamping groove, the sealing effect of the valve core is improved.

[0010] Further, a first spring is arranged on the outer wall of the valve rod and below the diaphragm;

[0011] Through the above technical solution, the speed of the diaphragm moving upward is accelerated by the first spring.

[0012] Further, one side of the upper end of the valve body is fixedly provided with an air pipe.

[0013] Through the above technical solution, the air pipe is externally connected to a gas control device to control the gas inside the control shell.

[0014] Further, the two sliders are respectively limited and slide inside the corresponding chutes.

[0015] Through the above technical solution, the filter net can be disassembled by the movement of the slider.

[0016] Further, magnetic attraction blocks are fixedly arranged on the inner side walls of the two sliders, and the two magnetic attraction blocks are respectively magnetically connected to the corresponding buffer plates.

[0017] Through the above technical solution, the filter frame is installed by the magnetic attraction block being magnetically connected to the buffer plate.

[0018] Further, mounting holes are respectively formed at the four corners of the valve body.

[0019] Through the above technical solution, the valve body is installed through the mounting holes.

[0020] The utility model has the following beneficial effects:

[0021] 1. A novel stainless steel pneumatic control valve proposed by the utility model. The pneumatic control valve closes the valve body by the movement of the valve core. When the inlet and outlet are cut off, the lower end of the valve core abuts against the sealing disc. At this time, the sealing ring is clamped into the slot of the sealing disc, improving the sealing effect of the valve core.

[0022] 2. A novel stainless steel pneumatic control valve proposed by the utility model. When the fluid enters the inlet, the fluid is filtered by the filter net to prevent the pneumatic control valve from being blocked. At the same time, under the action of the spring and the buffer plate, the impact force on the filter net is reduced, improving the service life of the filter net. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the front sectional view of a novel stainless steel pneumatic control valve proposed by the utility model;

[0024] Figure 2 is the schematic diagram of the sealing mechanism of a novel stainless steel pneumatic control valve proposed by the utility model;

[0025] Figure 3 is Figure 1 the enlarged view of part A in

[0026] Figure 4Schematic diagram of the filtering mechanism of a new type of stainless steel pneumatic control valve proposed by the present utility model;

[0027] Figure 5 is Figure 1 The enlarged view of part B in

[0028] Legend:

[0029] 1. Valve body; 2. Control shell; 3. Recovery chamber; 4. Diaphragm; 5. Valve stem; 6. Valve core; 7. First spring; 8. Sealing ring; 9. Sealing disc; 10. Card slot; 11. Air pipe; 12. Inlet; 13. Outlet; 14. Slide groove; 15. Filter frame; 16. Filter net; 17. Slide block; 18. Magnetic attraction block; 19. Second spring; 20. Buffer plate; 21. Mounting hole. Specific implementation mode

[0030] Next, the technical solutions in the specific implementation modes of the present utility model will be clearly and completely described in conjunction with the drawings in the specific implementation modes of the present utility model. Obviously, the described specific implementation modes are only a part of the specific implementation modes of the present utility model, rather than all of the specific implementation modes. Based on the specific implementation modes of the present utility model, all other specific implementation modes obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Referring to Figure 1-3 A specific implementation mode provided by the present utility model: a new type of stainless steel pneumatic control valve, including a valve body 1, a control shell 2 is fixedly arranged at the upper end of the valve body 1, a recovery chamber 3 is opened at the upper middle part inside the valve body 1, a diaphragm 4 is slidably arranged inside the control shell 2, a valve stem 5 is fixedly arranged at the middle lower part of the diaphragm 4, the lower end of the valve stem 5 extends into the inside of the recovery chamber 3 and is fixedly connected with a valve core 6, a sealing ring 8 is fixedly arranged at the lower end of the valve core 6, and a sealing disc 9 is fixedly arranged at the middle part inside the valve body 1;

[0032] A card slot 10 is opened on the upper end surface of the sealing disc 9, the sealing ring 8 is clamped inside the card slot 10, by clamping the sealing ring 8 into the card slot 10, the sealing effect of the valve core 6 is improved, a first spring 7 is arranged on the outer wall of the valve stem 5 and below the diaphragm 4, and the speed of the diaphragm 4 moving upward is accelerated by the first spring 7. An air pipe 11 is fixedly arranged at one side of the upper end of the valve body 1, and the inside of the control shell 2 is controlled by connecting the air pipe 11 externally to a gas control device.

[0033] Referring to Figure 1 、 4At 5, on both inner sides of the valve body 1, an inlet 12 and an outlet 13 are respectively provided. On the inner walls at the upper and lower ends of the valve body 1 and at the inlet 12, sliding grooves 14 are provided. Inside the valve body 1 and at the inlet 12, a filter frame 15 is slidably arranged. Inside the filter frame 15, a filter net 16 is fixedly arranged. At the upper and lower ends of the filter frame 15, sliding blocks 17 are fixedly arranged. On one side of the inner parts of the two sliding grooves 14, second springs 19 are fixedly arranged. At the ends of the two second springs 19, buffer plates 20 are fixedly connected.

[0034] The two sliding blocks 17 are respectively and limit-slidingly arranged inside the corresponding sliding grooves 14. Through the movement of the sliding blocks 17, the filter net 16 can be disassembled. On the inner side walls of the two sliding blocks 17, magnetic attraction blocks 18 are fixedly arranged. The two magnetic attraction blocks 18 are respectively magnetically connected to the corresponding buffer plates 20. By magnetically connecting the magnetic attraction blocks 18 to the buffer plates 20, the filter frame 15 is installed. Installation holes 21 are provided at the four corners of the valve body 1. Through the installation holes 21, the valve body 1 is installed.

[0035] Working principle: When this new type of stainless steel pneumatic control valve is in use, when the fluid enters the inlet 12, the fluid is filtered by the filter net 16 to prevent the pneumatic control valve from being blocked. At the same time, under the action of the second spring 19 and the buffer plate 20, the impact force received by the filter net 16 is slowed down. The fluid enters the outlet 13 through the middle of the valve body 1 and is discharged. By moving the valve core 6, the valve body 1 is closed. When the inlet 12 and the outlet 13 are cut off, the lower end of the valve core 6 abuts against the sealing disc 9. At this time, the sealing ring 8 is clamped into the clamping groove 10 of the sealing disc 9, improving the sealing effect of the valve core 6.

[0036] Finally, it should be noted that the above are only the preferred specific embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing specific embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A new type of stainless steel pneumatically controlled valve, comprising a valve body (1), characterized in that: A control housing (2) is fixedly arranged at the upper end of the valve body (1). A recovery cavity (3) is formed at the upper middle part inside the valve body (1). A diaphragm (4) is slidably arranged inside the control housing (2). A valve rod (5) is fixedly arranged at the middle lower end of the diaphragm (4). The lower end of the valve rod (5) extends into the recovery cavity (3) and is fixedly connected with a valve core (6). A sealing ring (8) is fixedly arranged at the lower end of the valve core (6). A sealing disc (9) is fixedly arranged at the middle part inside the valve body (1). Inlets (12) and outlets (13) are respectively formed at the inner parts on both sides of the valve body (1). Slide grooves (14) are formed at the upper and lower inner walls of the valve body (1) at the position of the inlet (12). A filter frame (15) is slidably arranged inside the valve body (1) at the position of the inlet (12). A filter screen (16) is fixedly arranged inside the filter frame (15). Sliders (17) are fixedly arranged at both the upper and lower ends of the filter frame (15). Second springs (19) are fixedly arranged at one sides inside the two slide grooves (14). Buffer plates (20) are fixedly connected to the ends of the two second springs (19).

2. The novel stainless steel pneumatic control valve according to claim 1, wherein: A clamping groove (10) is formed on the upper end surface of the sealing disc (9). The sealing ring (8) is clamped inside the clamping groove (10).

3. A novel stainless steel pneumatically controlled valve according to claim 1, characterized in that: A first spring (7) is arranged on the outer wall of the valve rod (5) below the diaphragm (4).

4. A novel stainless steel pneumatically controlled valve according to claim 1, characterized in that: An air pipe (11) is fixedly arranged at one side of the upper end of the valve body (1).

5. A novel stainless steel pneumatically controlled valve according to claim 1, characterized in that: The two sliders (17) are respectively and limit slidably arranged inside the corresponding slide grooves (14).

6. A novel stainless steel pneumatically controlled valve according to claim 1, characterized in that: Magnetic attraction blocks (18) are fixedly arranged on the inner side walls of the two sliders (17). The two magnetic attraction blocks (18) are respectively magnetically connected with the corresponding buffer plates (20).

7. A novel stainless steel pneumatically controlled valve according to claim 1, characterized in that: Mounting holes (21) are formed at the four corners of the valve body (1).

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