CN213685531U

CN213685531U - Gas pressure reducing valve with automatic regulating function

Info

Publication number: CN213685531U
Application number: CN202022551352.XU
Authority: CN
Inventors: 王晨冰
Original assignee: Shanghai Krypton Scientific Instrument Co ltd
Current assignee: Shanghai Krypton Scientific Instrument Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-07-13
Anticipated expiration: 2030-11-06

Abstract

The utility model belongs to the field of gas pressure reducing valves, in particular to a gas pressure reducing valve with an automatic adjusting function, which aims at the problem that the accumulated water centralized treatment of a pneumatic pressure reducing valve is not good after the pressure reducing treatment is carried out on a pipeline, thereby influencing the pressure reducing effect of the pneumatic pressure reducing valve, the utility model provides a scheme which comprises a main valve body, wherein, both ends of the main valve body are both fixed with auxiliary valve bodies, the main valve body is provided with a cavity, the inner part of the auxiliary valve bodies is provided with through holes communicated with the cavity, the inner part of the cavity is fixed with an annular cover, and the top end and one side of the annular cover are respectively; the utility model discloses in through opening and shutting of sealing plug and annular cover, carry out automatic deposit through the ponding that the bearing sleeve produced to it, when a certain amount of savings, through rotating the runner, drive the stopper downstream, drive the baffle and form the closure to through-hole department, at this moment, the screw thread rotates the spiral shell piece, drives the sealing ring and moves down, forms to open the bottom of bearing sleeve, can discharge ponding this moment, easy operation, convenient.

Description

Gas pressure reducing valve with automatic regulating function

Technical Field

The utility model relates to a gas pressure reducing valve technical field especially relates to a gas pressure reducing valve with automatic regulating function.

Background

The gas pressure reducing valve is a special device for automatically reducing the working pressure of a pipeline, and can reduce the higher liquid pressure of a pipeline in front of the valve to the level required by a pipeline behind the valve; the pressure reducing valve has many types of structures, and can be classified into a diaphragm type, a spring diaphragm type, a piston type, a lever type, a bellows type and the like according to the structural form. The basic action principle of the pressure reducing valve is that the water pressure is reduced by the local resistance of the flow passage in the valve to water flow, and the range of the water pressure drop is automatically adjusted by the water pressure difference of an inlet and an outlet at two sides of a membrane or a piston connected with a valve clack.

The gas relief valve need often reduce pressure to equipment after it adjusts out and can remain ponding usually, if remaining ponding if not handle in time, ponding can not be better carry out centralized processing, easily influences the result of use of other spare parts in the pneumatic relief valve to the decompression effect to pneumatic relief valve causes the influence.

Therefore, a gas pressure reducing valve with an automatic adjusting function is needed to solve the problem that accumulated water is not well intensively treated after a pipeline is subjected to pressure reduction treatment by a pneumatic pressure reducing valve, so that the pressure reduction effect of the pneumatic pressure reducing valve is affected.

SUMMERY OF THE UTILITY MODEL

The utility model provides a gaseous relief pressure valve with automatically regulated function has solved pneumatic relief pressure valve and has carried out the ponding centralized processing after the decompression treatment not good to the pipeline to influence the problem of the decompression effect of pneumatic relief pressure valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a gas pressure reducing valve with an automatic adjusting function comprises a main valve body, wherein auxiliary valve bodies are fixed at two ends of the main valve body, a cavity is arranged on the main valve body, a through hole communicated with the cavity is formed in each auxiliary valve body, an annular cover is fixed in each cavity, an inlet and an outlet are respectively formed in the top end and one side of each annular cover, a sealing plug is connected in each annular cover in a sliding mode, the top of the main valve body, which is located in the cavity, is communicated with a pressing groove, a pressing block is connected to the inner wall of each pressing groove in a sliding mode, a pressing rod is fixed between each pressing block and the corresponding sealing plug, a screw rod is connected to the top end of the main valve body in a threaded mode, a rotating wheel is fixed at the top end of the screw rod, an adjusting spring is arranged between the screw rod and the pressing block, a bearing sleeve is fixed below the annular cover of the main valve body, the fixed block with be fixed with between the sealing plug and press the spring, the bottom threaded connection of the main valve body has the spiral shell piece, the top of spiral shell piece is fixed with and accepts the sealing ring of cover looks adaptation, the cavity is close to the lateral wall of import and is fixed with the fixed plate, the bottom of fixed plate is rotated and is connected with the baffle with through-hole matched with, it has the ejector pin that extends to pressing the inslot portion to slide to run through in the fixed plate, the bottom mounting of ejector pin has the stopper with baffle matched with, the stopper with be fixed with the extrusion spring between the fixed plate, the surface of ejector pin is located to the extrusion spring housing.

Preferably, the cross-section of annular cover is the funnel shape of handstand, the sealing plug is the round platform form with annular cover looks adaptation, the surface fastening of pressing the pole has cup jointed the water conservancy diversion awl fixed with the sealing plug top.

Preferably, the cross section of the bearing sleeve is in a sleeve shape, and the size of the sealing ring and the contact surface of the inner surface of the bearing sleeve are matched curved surfaces.

Preferably, a liquid accumulation box is fixed at the bottom end of the main valve body, and an opening matched with the screw block is formed in one side of the liquid accumulation box.

Preferably, the cross section of the pressing block is in an isosceles trapezoid shape, and the cross section of the bottom end of the pressing groove is in an isosceles trapezoid shape matched with the cross section of the bottom end of the pressing groove.

Preferably, the aperture size of the through hole is gradually reduced along the center of the cavity, and the size of the baffle is larger than the size of the inner end of the through hole.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in through opening and shutting of sealing plug and annular cover, carry out automatic deposit through the ponding that the bearing sleeve produced to it, when saving a certain amount, through rotating the runner, the drive is pressed the briquetting and is pushed down until with the ejector pin contact, drive the ejector pin and move down in the fixed plate, drive the stopper downstream, it forms the closure to through-hole department to drive the baffle, at this moment, the screw thread rotates the spiral shell piece, drive the sealing ring downstream, form and open the bottom of bearing sleeve, can discharge ponding this moment, and is simple in operation, convenient.

2. The utility model discloses the setting of well through-hole aperture size prevents that the pipeline from pressure too big when getting into the cavity, is convenient for carry out the decompression processing of certain degree again after the pipeline decompression processing simultaneously for the decompression effect of gas relief pressure valve is better.

Drawings

Fig. 1 is a schematic view of a main sectional structure of a gas pressure reducing valve with an automatic adjusting function provided by the present invention;

FIG. 2 is an enlarged view of area A of FIG. 1;

fig. 3 is a schematic view of the gas pressure reducing valve with an automatic adjusting function according to the present invention.

In the figure: 1. a main valve body; 2. a sub-valve body; 3. a cavity; 4. a through hole; 5. an annular shroud; 6. an inlet; 7. an outlet; 8. a sealing plug; 9. pressing the groove; 10. a pressing block; 11. a pressing lever; 12. a screw; 13. a rotating wheel; 14. adjusting the spring; 15. a bearing sleeve; 16. a fixed block; 17. a pressing spring; 18. a screw block; 19. a seal ring; 20. a fixing plate; 21. a baffle plate; 22. a top rod; 23. a limiting block; 24. a compression spring; 25. a flow guide cone; 26. a liquid accumulation box; 27. and (4) opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a gas pressure reducing valve with an automatic adjusting function, comprising a main valve body 1, wherein both ends of the main valve body 1 are fixed with auxiliary valve bodies 2, the main valve body 1 is provided with a cavity 3, the inner part of the auxiliary valve body 2 is provided with a through hole 4 communicated with the cavity 3, the inner part of the cavity 3 is fixed with an annular cover 5, the top end and one side of the annular cover 5 are respectively provided with an inlet 6 and an outlet 7, the inner part of the annular cover 5 is slidably connected with a sealing plug 8, the top part of the main valve body 1, which is positioned at the cavity 3, is communicated with a pressing groove 9, the inner wall of the pressing groove 9 is slidably connected with a pressing block 10, a pressing rod 11 is fixed between the pressing block 10 and the sealing plug 8, the top end of the main valve body 1 is in threaded connection with a screw 12, the top end of the screw 12 is fixed with a rotating wheel 13, an adjusting spring 14 is arranged between the screw 12, the opening and closing size of the sealing plug 8 and the annular cover 5 is controlled to realize the pressure reduction treatment of the pipeline; the two ends of the auxiliary valve body 2 are both mounted on a pipeline through nuts, when the pipeline needs to be decompressed, the rotating wheel 13 is rotated to drive the screw rod 12 to rotate on the main valve body 1 in a threaded manner, the adjusting spring 14 is driven to compress, the pressing block 10 slides in the pressing groove 9, the sealing plug 8 is driven to press down in the annular cover 5 under the action of the pressing rod 11, the opening degree of the sealing plug 8 on the annular cover 5 is adjusted, so that the pipeline entering from the through hole 4 in the auxiliary valve body 2 is decompressed, and the pipeline decompressing effect of the gas decompression valve is realized; a bearing sleeve 15 is fixed below the annular cover 5 of the main valve body 1, a fixed block 16 is fixed inside the bearing sleeve 15, a pressing spring 17 is fixed between the fixed block 16 and the sealing plug 8, a screw block 18 is in threaded connection with the bottom end of the main valve body 1, a sealing ring 19 matched with the bearing sleeve 15 is fixed at the top end of the screw block 18, a fixed plate 20 is fixed on the side wall of the cavity 3 close to the inlet 6, a baffle plate 21 matched with the through hole 4 is rotatably connected to the bottom end of the fixed plate 20, a push rod 22 extending into the pressing groove 9 penetrates through the fixed plate 20 in a sliding manner, a limit block 23 matched with the baffle plate 21 is fixed at the bottom end of the push rod 22, an extrusion spring 24 is fixed between the limit block 23 and the fixed plate 20, and the extrusion spring 24 is sleeved on the outer surface of the push rod 22, specifically, the fixed block 16 and the pressing spring 17 are arranged, so that the sealing; the baffle 21 is arranged to perform a certain degree of pressure relief effect on a pipeline entering through the auxiliary valve body 2, so as to prevent the pipeline from entering the cavity 3 in the main valve body 1 and performing a certain degree of protection on the pipeline, when the sealing plug 8 is opened and closed on the annular cover 5, accumulated water is easily generated at the sealing plug 8, the accumulated water can enter the receiving sleeve 15 at the bottom end of the annular cover 5 along with the sealing plug 8 to be stored, when the accumulated water in the receiving sleeve 15 is enough, the rotating wheel 13 is rotated to drive the pressing block 10 to be pressed downwards until the pressing block is contacted with the ejector rod 22, the ejector rod 22 is driven to move downwards in the fixing plate 20 to drive the limiting block 23 to move downwards, the baffle 21 is driven to seal the through hole 4, at the moment, the screw thread rotates the screw block 18 to drive the sealing ring 19 to move downwards to open the bottom end of the receiving sleeve 15, the accumulated water can be discharged at the moment, and the sealing, the accumulated water generated by the bearing sleeve 15 is automatically stored and is discharged after being stored to a certain amount, and the operation is simple and convenient.

The cross-section of annular cover 5 is the funnel shaped of handstand, sealing plug 8 is the round platform form with 5 looks adaptations of annular cover, the outer surface fastening cup joint of pressing rod 11 has the water conservancy diversion awl 25 fixed with sealing plug 8 top, it is concrete, the setting that annular cover 5 leaks hopper-shaped, guarantee that sealing plug 8 carries out better closure to annular cover 5 and handle, thereby improve its sealed effect when not using, the setting of water conservancy diversion awl 25, be convenient for ponding better get into from sealing plug 8 and accept the processing of gathering in the adapter sleeve 15.

The cross-section that holds cover 15 is the cover tube-shape, and the size of sealing ring 19 is the looks adaptation curved surface with the contact surface of the internal surface that holds cover 15, and is concrete, holds 15 cover tube-shapes of cover, is convenient for produce ponding to annular cover 5 department and carries out better accumulation, and the setting of sealing ring 19 size is convenient for carry out better sealing to holding cover 15 and handles.

The bottom mounting of main valve body 1 has hydrops case 26, and opening 27 with spiral shell piece 18 matched with is seted up to one side of hydrops case 26, and is concrete, and the setting of hydrops case 26 can carry out certain accumulation to the ponding that produces in the cavity 3 to concentrate the emission and handle, the setting of opening 27 is convenient for carry out the screw thread rotation regulation to spiral shell piece 18.

The cross-section of pressing block 10 is isosceles trapezoid shape, and the bottom cross-section that presses groove 9 is the isosceles trapezoid of looks adaptation, and is concrete, presses the setting of pressing block 10 cross-sectional shape, and when runner 13 of being convenient for drove 12 screw threads of screw rod and rotates to the bottommost, can drive baffle 21 and form the sealed processing to through-hole 4.

The aperture size of through-hole 4 reduces along the center of cavity 3 gradually, and the size of baffle 21 is greater than the inner size of through-hole 4, and is concrete, and the setting of through-hole 4 aperture size prevents that the pipeline from pressure too big when getting into cavity 3, is convenient for carry out the decompression processing of certain degree again after the pipeline decompression processing simultaneously for the decompression effect of gas relief pressure valve is better.

The working principle is as follows: the two ends of the auxiliary valve body 2 are both mounted on a pipeline through nuts, the annular cover 5 is arranged to perform a certain decompression effect on the pipeline entering from the auxiliary valve body 2, and the decompression treatment on the pipeline is realized by controlling the opening and closing size of the sealing plug 8 and the annular cover 5; when the pipeline needs to be decompressed, the rotating wheel 13 rotates to drive the screw 12 to rotate on the main valve body 1 in a threaded manner, the adjusting spring 14 is driven to compress, the pressing block 10 slides in the pressing groove 9, the sealing plug 8 is driven to press down in the annular cover 5 under the action of the pressing rod 11, and the opening degree of the sealing plug 8 on the annular cover 5 is adjusted, so that the pipeline entering from the through hole 4 in the auxiliary valve body 2 is decompressed, and the decompression effect of the gas decompression valve is realized; through opening and shutting of sealing plug 8 and annular cover 5, carry out automatic deposit through the ponding that the bearing sleeve 15 produced to it, when a certain amount of savings, through rotating runner 13, drive and press the briquetting 10 to push down until with the contact of ejector pin 22, drive ejector pin 22 downstream in fixed plate 20, drive stopper 23 downstream, it forms the closure to through-hole 4 department to drive baffle 21, at this moment, the screw thread rotates spiral shell piece 18, drive sealing ring 19 downstream, the bottom that forms bearing sleeve 15 is opened, can discharge ponding this moment, and the operation is simple, and is convenient.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. A gas pressure reducing valve with an automatic adjusting function comprises a main valve body (1), wherein auxiliary valve bodies (2) are fixed at two ends of the main valve body (1), and the gas pressure reducing valve is characterized in that a cavity (3) is arranged on the main valve body (1), a through hole (4) communicated with the cavity (3) is formed in each auxiliary valve body (2), an annular cover (5) is fixed in each cavity (3), an inlet (6) and an outlet (7) are respectively formed in the top end and one side of each annular cover (5), a sealing plug (8) is slidably connected in each annular cover (5), a pressing groove (9) is communicated with the top of the main valve body (1) positioned in each cavity (3), a pressing block (10) is slidably connected to the inner wall of each pressing groove (9), and a rod (11) is fixed between each pressing block (10) and the sealing plug (8), the top end of the main valve body (1) is in threaded connection with a screw rod (12), the top end of the screw rod (12) is fixed with a rotating wheel (13), an adjusting spring (14) is arranged between the screw rod (12) and the pressing block (10), the main valve body (1) is positioned below the annular cover (5) and is fixed with a bearing sleeve (15), a fixed block (16) is fixed inside the bearing sleeve (15), a pressing spring (17) is fixed between the fixed block (16) and the sealing plug (8), the bottom end of the main valve body (1) is in threaded connection with a screw block (18), the top end of the screw block (18) is fixed with a sealing ring (19) matched with the bearing sleeve (15), the side wall of the cavity (3) close to the inlet (6) is fixed with a fixed plate (20), the bottom end of the fixed plate (20) is rotatably connected with a baffle plate (21) matched with the through hole (4), slide in fixed plate (20) and run through ejector pin (22) that extend to pressing groove (9) inside, the bottom mounting of ejector pin (22) has stopper (23) with baffle (21) matched with, stopper (23) with be fixed with extrusion spring (24) between fixed plate (20), the surface of ejector pin (22) is located to extrusion spring (24) cover.

2. The gas pressure reducing valve with the automatic adjusting function according to claim 1, wherein the cross section of the annular cover (5) is in an inverted funnel shape, the sealing plug (8) is in a circular truncated cone shape matched with the annular cover (5), and a flow guide cone (25) fixed to the top of the sealing plug (8) is tightly sleeved on the outer surface of the pressing rod (11).

3. The gas pressure reducing valve with the automatic adjusting function according to claim 1, wherein the cross section of the receiving sleeve (15) is in a sleeve shape, and the size of the sealing ring (19) and the contact surface of the inner surface of the receiving sleeve (15) are adaptive curved surfaces.

4. The gas pressure reducing valve with the automatic adjusting function according to claim 1, wherein a liquid accumulating box (26) is fixed at the bottom end of the main valve body (1), and an opening (27) matched with the screw block (18) is formed in one side of the liquid accumulating box (26).

5. The gas pressure reducing valve with the automatic adjusting function according to claim 1, wherein the cross section of the pressing block (10) is in an isosceles trapezoid shape, and the cross section of the bottom end of the pressing groove (9) is in an adapted isosceles trapezoid shape.

6. The gas pressure reducing valve with the automatic adjusting function according to claim 1, wherein the aperture size of the through hole (4) is gradually reduced along the center of the cavity (3), and the size of the baffle (21) is larger than the size of the inner end of the through hole (4).