CN212745208U

CN212745208U - Self-operated pressure regulating valve

Info

Publication number: CN212745208U
Application number: CN202021467140.7U
Authority: CN
Inventors: 张晶晶; 刘慧�
Original assignee: Sichuan Lantian Cryogenic Technology Develop Co ltd
Current assignee: Sichuan Lantian Cryogenic Technology Develop Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-03-19
Anticipated expiration: 2030-07-23

Abstract

The utility model discloses a self-operated air-vent valve, which comprises a valve body, the fixed intercommunication of right flank of valve body has the output tube, the last fixed surface of valve body is connected with two sets of symmetrical dead levers, every the common fixedly connected with surge-chamber in top of dead lever, the last fixed surface intercommunication of surge-chamber has the approach tube, the one end that the surge-chamber was kept away from to the approach tube communicates with the external fixed surface of output tube, the last fixed surface intercommunication of valve body has the bellows, the inside cover of bellows is equipped with the valve rod, the top fixedly connected with movable rod of valve rod, the surface cover of bellows is equipped with reset spring, the slide opening has been seted up to the bottom surface of surge-chamber, the top of movable rod runs through the slide opening and extends to the inside of surge-. This formula of relying on oneself air-vent valve sets up the filter screen through the inside of rose box, can filter the input material, avoids impurity to get into the valve body, sets up sealed lid through the top of rose box, can change and wash the filter screen.

Description

Self-operated pressure regulating valve

Technical Field

The utility model belongs to the valve field especially relates to a formula of relying on oneself air-vent valve.

Background

The valve is a control component in the fluid conveying system, and has the functions of stopping, regulating, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure, etc., and is used for the valve of the fluid control system, from the simplest stop valve to various valves used in a very complicated automatic control system, the variety and specification of the valve are quite various, the valve can be used for controlling the flow of various fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media, etc., the pressure regulating valve is one of the valves, the pressure regulating valve can be basically a pressure reducing valve, the high-pressure medium of the pressure reducing valve is filled into a relatively large cavity through a small hole to realize pressure reduction, and actually, the pressure reduction is realized by intercepting, one side of two sides of a membrane or a piston is an outlet cavity, one side is artificially supplied with pressure, and a valve rod controlling the size of the small hole is connected with the membrane, so as long as a fixed, the pressure of the outlet cavity is always equal to the pressure, the given pressure can be provided by a spring or an air source or a hydraulic source, the conventional self-operated pressure reducing valve comprises a valve sleeve and a valve core, the valve core is sleeved in the valve sleeve, a rectangular pressure reducing valve port is arranged on the valve core, the rectangular pressure reducing valve port arranged on the valve sleeve corresponds to the pressure reducing valve port of the valve core, and the pressure regulating valve is pressure balanced through a pressure guiding pipe due to the fact that impurities are contained in conveyed substances, and the impurities possibly block the pressure guiding pipe in the process of air pressure leveling to cause the fault of the pressure regulating valve.

SUMMERY OF THE UTILITY MODEL

The utility model provides a, aim at solving above-mentioned existence because contain impurity in the transported substance material, and the air-vent valve carries out pressure balance through drawing the pressure pipe, at the level and smooth in-process of atmospheric pressure, impurity probably blocks up and draws the pressure pipe, causes the problem of air-vent valve trouble.

The utility model is realized in such a way, a self-operated pressure regulating valve, which comprises a valve body, the right side surface of the valve body is fixedly communicated with an output pipe, the upper surface of the valve body is fixedly connected with two groups of symmetrical fixed rods, the top end of each fixed rod is fixedly connected with a pressure regulating chamber, the upper surface of the pressure regulating chamber is fixedly communicated with a pressure guiding pipe, one end of the pressure guiding pipe far away from the pressure regulating chamber is communicated with the outer surface of the output pipe, the upper surface of the valve body is fixedly communicated with a corrugated pipe, the inner part of the corrugated pipe is sleeved with a valve rod, the top end of the valve rod is fixedly connected with a movable rod, the outer surface of the corrugated pipe is sleeved with a reset spring, the bottom surface of the pressure regulating chamber is provided with a slide hole, the top end of the movable rod penetrates through the slide hole and extends to the inner part of, every the inside equal joint of spout has the slider with spout looks adaptation, the left and right sides face of diaphragm respectively with two slider side fixed connection that are close to each other.

The left end of valve body is fixed the intercommunication and is had the rose box, the top of rose box is equipped with sealed lid, two sets of symmetrical screw holes have been seted up to the upper surface of rose box, sealed lid passes through bolt and rose box fixed connection, the fixed intercommunication of left surface of rose box has the input tube, the opening has been seted up to the upper surface of rose box, the filter screen that the bottom surface fixedly connected with equidistance of sealed lid was arranged, every the filter screen all runs through the opening and extends to the inside of rose box, the draw-in groove has been seted up to the inner diapire of rose box, every the bottom surface of filter screen all blocks mutually with the draw-in groove.

Preferably, the front surface of the pressure regulating chamber is fixedly connected with a nameplate, and the front surface of the nameplate is provided with production information.

Preferably, the front surface of the filter box is provided with a display window, and the interior of the display window is fixedly connected with toughened glass.

Preferably, the upper surface of the filter box is provided with a sealing gasket, and the upper surface of the sealing gasket is in contact with the bottom surface of the sealing cover.

Preferably, symmetrical pull handles are fixedly connected to the upper surface of the sealing cover, and the number of the pull handles is at least two.

Preferably, the end of the input pipe, which is far away from the output pipe, is fixedly connected with a fixed disc, and the front surface of each fixed disc is provided with a fixed hole.

Preferably, the bottom surface of valve body and the common fixedly connected with base of the bottom surface of rose box, the bottom surface fixedly connected with anticorrosive board of base.

Compared with the prior art, the beneficial effects of the utility model are that: the bottom surface through valve body and rose box is provided with the base, can conveniently support the air-vent valve, utilize the corrosion-resistant plate of base below, can avoid the valve body corrosion to appear, connect the output tube through the pressure pipe, when pressure output is great, the pressure pipe inputs atmospheric pressure to the pressure-regulating chamber, pressure pushes down the diaphragm downstream under the cooperation of spout and slider, the diaphragm drives movable rod and valve rod and removes, and then adjust the air-vent valve, reduce pressure, when pressure reduces suddenly, gaseous through the pressure pipe discharge in the pressure-regulating chamber, thereby utilize reset spring's bounce-back effect to promote the valve rod and rise, the regulating valve is transferred greatly, make atmospheric pressure balance, inside through the rose box sets up the filter screen, can filter input material, avoid impurity to get into the valve body, top through the rose box sets up sealed lid, can conveniently change and wash the filter screen.

Drawings

Fig. 1 is a front view of the valve body of the present invention;

fig. 2 is a sectional view of the front view of the surge chamber of the present invention;

fig. 3 is a cross-sectional view of the front view of the filtering box of the present invention.

In the figure: 1. a valve body; 2. a pressure guiding pipe; 3. an output pipe; 4. a base; 5. an anti-corrosion plate; 6. a bellows; 7. fixing the rod; 8. a pressure regulating chamber; 9. a nameplate; 10. a movable rod; 11. a valve stem; 12. a return spring; 13. a display window; 14. a filter box; 15. an input tube; 16. fixing the disc; 17. a chute; 18. a slide hole; 19. a membrane; 20. a slider; 21. pulling a handle; 22. a port; 23. a gasket; 24. a bolt; 25. a sealing cover; 26. a threaded hole; 27. filtering with a screen; 28. a clamping groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, a self-operated pressure regulating valve includes a valve body 1, an output pipe 3 is fixedly communicated with the right side surface of the valve body 1, two sets of symmetrical fixed rods 7 are fixedly connected with the upper surface of the valve body 1, a pressure regulating chamber 8 is fixedly connected with the top end of each fixed rod 7 together, a pressure guiding pipe 2 is fixedly communicated with the upper surface of the pressure regulating chamber 8, one end of the pressure guiding pipe 2 far away from the pressure regulating chamber 8 is fixedly communicated with the outer surface of the output pipe 3, a corrugated pipe 6 is fixedly communicated with the upper surface of the valve body 1, a valve rod 11 is sleeved inside the corrugated pipe 6, a movable rod 10 is fixedly connected with the top end of the valve rod 11, a return spring 12 is sleeved on the outer surface of the corrugated pipe 6, a sliding hole 18 is formed in the bottom surface of the pressure regulating chamber 8, the top end of the movable rod 10 penetrates through the sliding hole 18 and extends into the, the inside of every spout 17 all the joint have with spout 17 looks adaptation's slider 20, the left and right sides face of diaphragm 19 respectively with two sliders 20 a side fixed connection that is close to each other.

The left end of valve body 1 is fixed to be communicated with rose box 14, the top of rose box 14 is equipped with sealed lid 25, two sets of symmetrical screw hole 26 have been seted up to the upper surface of rose box 14, sealed lid 25 passes through bolt 24 and rose box 14 fixed connection, the fixed intercommunication of the left surface of rose box 14 has input tube 15, opening 22 has been seted up to the upper surface of rose box 14, the filter screen 27 that the bottom surface fixedly connected with equidistance of sealed lid 25 was arranged, every filter screen 27 all runs through opening 22 and extends to the inside of rose box 14, draw-in groove 28 has been seted up to the inner diapire of rose box 14, the bottom surface of every filter screen 27 all with draw-in groove 28 looks.

The utility model discloses in, the positive fixedly connected with data plate 9 of surge-chamber 8, the front of data plate 9 is equipped with production information, can be convenient for discern product information, display window 13 has been seted up in the front of rose box 14, display window 13's inside fixedly connected with toughened glass can conveniently observe the filter screen 27 in service behavior, the upper surface of rose box 14 is equipped with sealed the pad 23, the upper surface that seals up pad 23 contacts with the bottom surface that seals lid 25, can play sealed effect, improve sealed quality.

The symmetrical handle 21 that draws of last fixed surface of sealed lid 25, the quantity of drawing the handle 21 is two at least, can conveniently change filter screen 27, the equal fixedly connected with fixed disk 16 of one end that input tube 15 and output tube 3 kept away from each other, the fixed orifices has all been seted up in the front of every fixed disk 16, can conveniently be connected with external pipeline, the common fixedly connected with base 4 in bottom surface of valve body 1 and rose box 14, the anticorrosive board 5 of bottom surface fixedly connected with of base 4, can conveniently support the governing valve.

The utility model discloses a theory of operation is: when the pressure regulating valve is used, firstly, the pressure regulating valve is connected with an external pipeline through the input pipe 15 and the fixed disk 16 on the output pipe 3, a medium entering the input pipe 15 firstly enters the filter box 14, the medium is filtered through the multilayer filter screen 27 in the filter box 14, then gas is conveyed through the valve body 1, when the pressure output is large, the pressure guiding pipe 2 inputs air pressure into the pressure regulating chamber 8, the pressure presses the diaphragm 19 to move downwards under the matching of the sliding groove 17 and the sliding block 20, the diaphragm 19 drives the movable rod 10 and the valve rod 11 to move, so that the pressure regulating valve regulates and reduces the pressure, when the pressure is suddenly reduced, the gas in the pressure regulating chamber 8 is discharged through the pressure guiding pipe 2, the valve rod 11 is pushed to rise by utilizing the rebound effect of the reset spring 12, so that the pressure regulating valve is regulated to be in an enlarged state, and the.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A formula of relying on oneself air-vent valve, includes valve body (1), its characterized in that: an output pipe (3) is fixedly communicated with the right side face of the valve body (1), two groups of symmetrical fixing rods (7) are fixedly connected to the upper surface of the valve body (1), a pressure regulating chamber (8) is fixedly connected to the top end of each fixing rod (7) jointly, a pressure guiding pipe (2) is fixedly communicated with the upper surface of each pressure regulating chamber (8), one end, far away from the pressure regulating chamber (8), of each pressure guiding pipe (2) is fixedly communicated with the outer surface of the output pipe (3), a corrugated pipe (6) is fixedly communicated with the upper surface of the valve body (1), a valve rod (11) is sleeved inside the corrugated pipe (6), a movable rod (10) is fixedly connected to the top end of the valve rod (11), a reset spring (12) is sleeved on the outer surface of the corrugated pipe (6), a sliding hole (18) is formed in the bottom face of the pressure regulating chamber (8), and the top end of the movable rod (10) penetrates through the sliding hole, the top end of the movable rod (10) is fixedly connected with a diaphragm (19), the inner side wall of the pressure regulating chamber (8) is provided with symmetrical sliding grooves (17), a sliding block (20) matched with the sliding grooves (17) is clamped in each sliding groove (17), and the left side surface and the right side surface of the diaphragm (19) are fixedly connected with one side surface of the two sliding blocks (20) which are close to each other respectively;

the left end of valve body (1) is fixed the intercommunication and is had rose box (14), the top of rose box (14) is equipped with sealed lid (25), two sets of symmetrical screw hole (26) have been seted up to the upper surface of rose box (14), sealed lid (25) are through bolt (24) and rose box (14) fixed connection, the left side fixed intercommunication of rose box (14) has input tube (15), opening (22) have been seted up to the upper surface of rose box (14), filter screen (27) that the bottom surface fixedly connected with equidistance of sealed lid (25) was arranged, every filter screen (27) all run through opening (22) and extend to the inside of rose box (14), draw-in groove (28) have been seted up to the inner diapire of rose box (14), every the bottom surface of filter screen (27) all with draw-in groove (28) looks joint.

2. A self-operated pressure regulating valve according to claim 1 wherein: the front surface of the pressure regulating chamber (8) is fixedly connected with a nameplate (9), and the front surface of the nameplate (9) is provided with production information.

3. A self-operated pressure regulating valve according to claim 1 wherein: the front of the filter box (14) is provided with a display window (13), and toughened glass is fixedly connected inside the display window (13).

4. A self-operated pressure regulating valve according to claim 1 wherein: the upper surface of the filter box (14) is provided with a sealing gasket (23), and the upper surface of the sealing gasket (23) is in contact with the bottom surface of the sealing cover (25).

5. A self-operated pressure regulating valve according to claim 1 wherein: the upper surface of the sealing cover (25) is fixedly connected with symmetrical pull handles (21), and the number of the pull handles (21) is at least two.

6. A self-operated pressure regulating valve according to claim 1 wherein: the equal fixedly connected with fixed disk (16) of one end that input tube (15) and output tube (3) kept away from each other, every the fixed orifices has all been seted up on the front of fixed disk (16).

7. A self-operated pressure regulating valve according to claim 1 wherein: the bottom surface of valve body (1) and the common fixedly connected with base (4) of bottom surface of rose box (14), the bottom surface fixedly connected with anticorrosive board (5) of base (4).