CN114001189A - Mounting structure of gas pressure regulator - Google Patents

Mounting structure of gas pressure regulator Download PDF

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Publication number
CN114001189A
CN114001189A CN202210000837.0A CN202210000837A CN114001189A CN 114001189 A CN114001189 A CN 114001189A CN 202210000837 A CN202210000837 A CN 202210000837A CN 114001189 A CN114001189 A CN 114001189A
Authority
CN
China
Prior art keywords
pressure regulator
surface wall
mounting structure
gas pressure
protective cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202210000837.0A
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Chinese (zh)
Other versions
CN114001189B (en
Inventor
陆奇娜
夏慧云
陆洪良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou Lucheng Gas Equipment Co ltd
Original Assignee
Changzhou Lucheng Gas Equipment Co ltd
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Publication date
Application filed by Changzhou Lucheng Gas Equipment Co ltd filed Critical Changzhou Lucheng Gas Equipment Co ltd
Priority to CN202210000837.0A priority Critical patent/CN114001189B/en
Publication of CN114001189A publication Critical patent/CN114001189A/en
Application granted granted Critical
Publication of CN114001189B publication Critical patent/CN114001189B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00Construction of housing; Use of materials therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00Flanged joints
    • F16L23/003Auxiliary devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00Flanged joints
    • F16L23/006Attachments
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00Flanged joints
    • F16L23/02Flanged joints the flanges being connected by members tensioned axially
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/18Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
    • F16L58/187Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings for flanged joints

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Pressure (AREA)
  • Pipe Accessories (AREA)

Abstract

The invention discloses a mounting structure of a gas pressure regulator, which comprises a pressure regulator main body, wherein mounting ends are fixedly mounted at two axial ends of the pressure regulator main body, the pushing sleeve is rotated to enable the inner surface wall of the pushing sleeve to be screwed with the threaded sleeve, the pushing sleeve pushes the protective cover to translate in the moving process, the ejector rod of the axial inner surface wall of the protective cover pushes the snap ring to move synchronously until the combination nut fixedly connected with the inner surface wall of the snap ring is attached to the axial outer surface wall of the mounting end, the rotation of the pushing sleeve is stopped at the moment, the self-locking of the pushing sleeve and the threaded sleeve ensures the stability of the combination nut, and the snap ring extends out of the mounting end at the moment, the mounting end can be clamped outside the flange of the external pipeline through the extended clamping ring, only the external fastener is required to pass through the through groove and is screwed with the combination nut, the installation of voltage regulator main part can be accomplished, the operation is comparatively convenient to the convenience that mounting structure of gas voltage regulator used has been improved.

Description

Mounting structure of gas pressure regulator
Technical Field
The invention relates to the technical field of gas pressure regulator installation, in particular to an installation structure of a gas pressure regulator.
Background
The gas pressure regulator is commonly called a pressure reducing valve, also called a gas pressure regulating valve, and is equipment for keeping outlet gas at a specified pressure by automatically changing the gas flow passing through the regulating valve; generally, the pressure regulator is divided into a direct-acting type and an indirect-acting type, the pressure regulator is a special valve on a gas pipeline, the device can keep the downstream pressure stable no matter how the flow rate of gas and the upstream pressure change, and the pressure regulator can be used for: 1. reducing the upstream pressure to a steady downstream pressure; 2. the downstream pressure should be able to be limited to a safe range when the pressure regulator fails.
At present, the mounting structure of a gas pressure regulator is mostly composed of flanges, namely, the flanges at two ends of the gas pressure regulator correspond to flanges of an external pipeline, an external fastener penetrates through a through groove on the flange and is screwed by a fastening nut, so that the mounting of the gas pressure regulator is achieved, but the mounting structure of the existing gas pressure regulator still has defects, firstly, the mounting structure of the existing gas pressure regulator is mostly characterized in that the whole gas pressure regulator is lifted manually and then is butted with the external pipeline, the gas pressure regulator has certain quality, and the outer side of the mounting structure of the gas pressure regulator is not provided with a corresponding matching mechanism, so that the gas pressure regulator is inconvenient to correspond to the flanges on the external pipeline, and the convenience in use of the mounting structure of the gas pressure regulator is reduced; secondly, current gas pressure regulator's mounting structure is after accomplishing the fixed of gas pressure regulator main part and outside pipeline, and its fastener and the fastening nut that are used for the fastening are the exposed formula setting, and the fastener receives outside erosion very easily and takes place to damage, leads to follow-up dismouting comparatively difficult, and the fastener receives to rock and still easily takes place to become flexible to gas pressure regulator's mounting structure's result of use has been reduced.
Disclosure of Invention
The invention aims to solve the problems and provides a mounting structure of a gas pressure regulator.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a mounting structure of gas pressure regulator, includes the pressure regulator main part, pressure regulator main part axial both ends fixed mounting has the installation end, the groove has been seted up to the table wall in the installation end, installation end radially outward table wall fixed mounting has the thread bush, the thread bush is including smooth section and screw thread section, the outer table wall of screw thread section closes soon and is connected with the promotion cover, smooth section outward appearance wall sliding connection has the protection casing, through block portion clearance fit between promotion cover and the protection casing axial end, table wall passes through ejector pin fixedly connected with snap ring in the protection casing axial, the snap ring cover is combined at installation end outward appearance wall, and the width of installation end is less than the width of snap ring, table wall fixed mounting has the combination nut in the snap ring, and multiunit combination nut and multiunit wear the groove one-to-one.
As a further description of the above technical solution:
the protective cover is characterized by further comprising a sealing part, wherein the sealing part is composed of two groups of semicircular sealing plates, the two groups of sealing plates are rotatably connected through a pin shaft, the outer surfaces of arc-shaped ends of the sealing plates are simultaneously and rotatably connected with the inner surface wall of the protective cover, and the outer surfaces of the two groups of sealing plates are fixedly provided with convex rings which are abutted against one side of the protective cover.
As a further description of the above technical solution:
the clamping part comprises a sliding block fixedly arranged on the outer surface wall of the pushing sleeve, and the sliding block is connected with the inner surface wall of the annular clamping groove in a sliding mode.
As a further description of the above technical solution:
the protective cover is arranged in a transparent mode.
As a further description of the above technical solution:
the ejector rod and the inner surface wall of the protective cover are integrally formed.
As a further description of the above technical solution:
and a sealing ring is fixedly arranged on one side of the convex ring close to the protective cover.
As a further description of the above technical solution:
the front end faces of the two groups of sealing plates are provided with concave rings.
As a further description of the above technical solution:
the inner surface wall of the arc-shaped end of the protective cover is fixedly provided with a limiting ring, and the outer surface wall of the limiting ring is abutted to the sealing plate.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. in the invention, the inner surface wall of the pushing sleeve is screwed with the threaded sleeve by rotating the pushing sleeve, and in the rotating process of the pushing sleeve, the sliding block on the outer surface wall of the pushing sleeve is in sliding fit with the annular clamping groove on the axial inner surface wall of the protective cover so as to keep the relative position of the pushing sleeve and the protective cover relatively stable, the pushing sleeve pushes the protective cover to translate in the moving process, the ejector rod on the axial inner surface wall of the protective cover pushes the clamping ring to synchronously move until the combination nut fixedly connected with the inner surface wall of the clamping ring is attached to the outer surface wall of the axial end of the mounting end, the rotation of the pushing sleeve is stopped at the moment, the self-locking of the pushing sleeve and the threaded sleeve ensures the stability of the combination nut, the clamping ring extends out of the mounting end, the mounting end can be clamped on the outer side of the flange plate of the external pipeline by the extending clamping ring and mutually corresponding can be realized, at the moment, only an external fastener passes through the through groove and is screwed with the combination nut, and the mounting of the pressure regulator main body can be completed, the operation is convenient, so that the convenience of using the mounting structure of the gas pressure regulator is improved.
2. According to the invention, after the fixing of the pressure regulator main body and the external pipeline is completed, the protective cover can just cover the outer side of the flange of the external pipeline, two groups of sealing plates in the sealing part are sleeved on the outer side of the external pipeline and attract the external pipeline, then the sealing plates are rotated to enable the outer surface wall of the arc-shaped end of the sealing part to be rotatably combined with the inner surface wall of the protective cover until the convex ring is combined on one side of the protective cover, the sealing plates are pressed on the head of the external fastener to limit the rotation of the external fastener, the protective cover, the sealing part and the pushing sleeve form a closed cavity, the contact of external corrosive substances with the fastener and the combination nut is reduced, the service lives of the fastener and the combination nut are prolonged, and the use effect of the mounting structure of the gas pressure regulator is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a push sleeve and a threaded sleeve according to the present invention;
FIG. 3 is a schematic view of the closure of the present invention;
FIG. 4 is a schematic structural view of a slider according to the present invention;
FIG. 5 is a schematic view of the structure of the snap ring and the shield of the present invention.
Illustration of the drawings:
1. a voltage regulator main body; 2. an installation end; 3. a protective cover; 4. a snap ring; 5. closing the plate; 6. a convex ring; 7. a limiting ring; 8. combining a nut; 9. an annular neck; 10. a push sleeve; 11. a threaded sleeve; 12. a concave ring; 13. a top rod; 14. a slider; 15. and (6) penetrating through the groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-5, a mounting structure of a gas pressure regulator comprises a pressure regulator main body 1, wherein mounting ends 2 are fixedly mounted at two axial ends of the pressure regulator main body 1, through grooves 15 are formed in the inner surface wall of each mounting end 2, a threaded sleeve 11 is fixedly mounted on the radial outer surface wall of each mounting end 2, the threaded sleeve 11 comprises a smooth section and a threaded section, a pushing sleeve 10 is connected to the outer surface wall of the threaded section in a screwing mode, a protective cover 3 is connected to the outer surface wall of the smooth section in a sliding mode, the pushing sleeve 10 is movably matched with the axial end of the protective cover 3 through a clamping part, a snap ring 4 is fixedly connected to the radial inner surface wall of the protective cover 3 through a push rod 13, the snap ring 4 is combined on the outer surface wall of the mounting ends 2, the width of each mounting end 2 is smaller than that of the snap ring 4, a combination nut 8 is fixedly mounted on the inner surface wall of the snap ring 4, and the multiple sets of combination nuts 8 correspond to the multiple sets of through grooves 15 one to one.
The inner surface wall of the pushing sleeve 10 is screwed with the threaded sleeve 11 by rotating the pushing sleeve 10, in the process of rotating the pushing sleeve 10, a sliding block 14 on the outer surface wall of the pushing sleeve is in sliding fit with an annular clamping groove 9 on the axial inner surface wall of the protective cover 3, so that the relative position of the pushing sleeve 10 and the protective cover 3 is kept relatively stable, the pushing sleeve 10 pushes the protective cover 3 to move in the moving process, an ejector rod 13 on the axial inner surface wall of the protective cover 3 pushes the clamping ring 4 to move synchronously until a combined nut 8 fixedly connected with the inner surface wall of the clamping ring 4 is attached to the axial outer surface wall of the mounting end 2, at the moment, the rotation of the pushing sleeve 10 is stopped, the self-locking of the pushing sleeve 10 and the threaded sleeve 11 ensures the stability of the combined nut 8, at the moment, the clamping ring 4 extends out of the mounting end 2, the mounting end 2 can be clamped outside a flange plate of an external pipeline by the extending clamping ring 4, and mutually corresponding is realized, at the moment, only an external fastener passes through a penetrating groove 15 and is screwed with the combined nut 8, can accomplish the installation of voltage regulator main part 1, the operation is comparatively convenient to the convenience that mounting structure of gas voltage regulator used has been improved.
The mounting structure is still including the closing part, and the closing part comprises two sets of semicircular shrouding 5, rotates through the round pin axle between two sets of shrouding 5 and connects, and 5 arc ends outward appearance walls of two sets of shrouding close soon with the interior outward appearance wall of protection casing 3 simultaneously and be connected, and 5 outward appearance wall fixed mounting of two sets of shrouding have bulge loop 6, bulge loop 6 and 3 one side looks butt of protection casing.
After accomplishing the fixed of voltage regulator main part 1 and outside pipeline, protection casing 3 just in time can cover the outside of the ring flange of outside pipeline this moment, 5 registrates the outside and self attractions of outside pipeline with two sets of shroudings in the sealing, rotate 5 messenger's arc end outside table walls of shrouding and 3 interior walls of protection casing soon after that, until bulge loop 6 combines in one side of protection casing 3, 5 pressfittings of shrouding are at the head of outside fastener this moment, restrict its rotation, protection casing 3 simultaneously, the sealing constitutes confined cavity with promotion cover 10, outside corrosive substance and fastener and the contact that combines nut 8 have been reduced, fastener and the life who combines nut 8 have been improved, thereby the result of use of the mounting structure of gas pressure regulator has been improved.
The clamping part comprises a sliding block 14 fixedly installed on the outer surface wall of the pushing sleeve 10, the sliding block 14 is connected with the inner surface wall in a sliding mode through an annular clamping groove 9, and in the rotating process of the pushing sleeve, the sliding block 14 on the outer surface wall is in sliding fit with the annular clamping groove 9 on the inner surface wall in the axial direction of the protective cover 3, so that the relative position of the pushing sleeve 10 and the protective cover 3 is kept relatively stable.
The protective cover 3 is transparent for facilitating the connection of the subsequent fastener and the combination nut 8.
The ejector rod 13 and the inner surface wall of the protective cover 3 are integrally formed to ensure the structural strength of the ejector rod 13.
One side of the convex ring 6 close to the protective cover 3 is fixedly provided with a sealing ring, so that the air tightness between the convex ring 6 and the protective cover 3 is ensured.
The front end faces of the two seal plates 5 are provided with concave rings 12 for facilitating the rotation of the seal parts.
The inside surface wall fixed mounting of 3 arc ends of protection casing has spacing ring 7, and 7 outside surface walls of spacing ring are 5 looks butt with shrouding for after shrouding 5 combines with protection casing 3, shrouding 5 and 7 inter combinations of spacing ring can guarantee that shrouding 5's position is confirmed fast.
The working principle is as follows: when the device is used, the pushing sleeve 10 is rotated to enable the inner surface wall of the pushing sleeve to be screwed with the threaded sleeve 11, in the rotating process of the pushing sleeve 10, the sliding block 14 of the outer surface wall of the pushing sleeve is in sliding fit with the annular clamping groove 9 of the axial inner surface wall of the protective cover 3, so that the relative position of the pushing sleeve 10 and the protective cover 3 is kept relatively stable, the pushing sleeve 10 pushes the protective cover 3 to translate in the moving process, the ejector rod 13 of the axial inner surface wall of the protective cover 3 pushes the clamping ring 4 to move synchronously until the combination nut 8 fixedly connected with the inner surface wall of the clamping ring 4 is attached to the radial outer surface wall of the mounting end 2, at the moment, the rotation of the pushing sleeve 10 is stopped, the self-locking of the pushing sleeve 10 and the threaded sleeve 11 ensures the stability of the combination nut 8, at the moment, the clamping ring 4 extends out of the mounting end 2, the mounting end 2 can be clamped outside the flange plate of an external pipeline through the extended clamping ring 4 to realize mutual correspondence, at the moment, only an external fastener needs to penetrate through the through groove 15 and be screwed with the combination nut 8, can accomplish the installation of voltage regulator main part 1, protection casing 3 just in time can cover the outside of the ring flange of outside pipeline this moment, 5 registrates the outside and self actuation of outside pipeline with two sets of shroudings in the seal, rotate 5 and make its arc end outer table wall and 3 inner table walls of protection casing close soon after that, until bulge loop 6 combines in one side of protection casing 3, 5 pressfittings of shrouding head outside the fastener this moment, restrict its rotation, protection casing 3 simultaneously, the seal constitutes confined cavity with promotion cover 10, outside corrosive substance and fastener and the contact that combines nut 8 have been reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. The utility model provides a mounting structure of gas pressure regulator, includes pressure regulator main part (1), its characterized in that, pressure regulator main part (1) axial both ends fixed mounting has installation end (2), wear groove (15) have been seted up to installation end (2) interior table wall, installation end (2) radial outward appearance wall fixed mounting has thread bush (11), thread bush (11) are including smooth section and screw thread section, screw thread section outward appearance wall closes soon and is connected with promotion cover (10), smooth section outward appearance wall sliding connection has protection casing (3), through block portion clearance fit between promotion cover (10) and protection casing (3) axial end, protection casing (3) radial interior table wall passes through ejector pin (13) fixedly connected with snap ring (4), snap ring (4) cover is combined at installation end (2) outer table wall, and the width of installation end (2) is less than the width of snap ring (4), the inner surface wall of the clamping ring (4) is fixedly provided with a combination nut (8), and the multiple groups of combination nuts (8) are in one-to-one correspondence with the multiple groups of through grooves (15).
2. The mounting structure of the gas pressure regulator according to claim 1, further comprising a sealing portion, wherein the sealing portion is composed of two sets of semicircular sealing plates (5), the two sets of sealing plates (5) are rotatably connected through a pin, the outer surface wall of the arc-shaped end of the two sets of sealing plates (5) is rotatably connected with the inner surface wall of the protective cover (3), the outer surface wall of the two sets of sealing plates (5) is fixedly provided with a convex ring (6), and the convex ring (6) is abutted against one side of the protective cover (3).
3. The mounting structure of a gas pressure regulator according to claim 1, wherein the engaging portion includes a slider (14) fixedly mounted on an outer surface wall of the push sleeve (10), and the slider (14) is slidably connected to an inner surface wall of the ring-shaped clamping groove (9).
4. The mounting structure of a gas pressure regulator according to claim 1, characterized in that the protective cover (3) is transparent.
5. The mounting structure of a gas pressure regulator according to claim 1, wherein the ejector rod (13) is integrally formed with the inner surface wall of the shield (3).
6. The mounting structure of a gas pressure regulator according to claim 2, characterized in that a sealing ring is fixedly mounted on one side of the convex ring (6) close to the protective cover (3).
7. The mounting structure of a gas pressure regulator according to claim 2, wherein the front end surfaces of the two sealing plates (5) are provided with concave rings (12).
8. The mounting structure of the gas pressure regulator according to claim 2, wherein the inner surface wall of the arc-shaped end of the protective cover (3) is fixedly provided with a limiting ring (7), and the outer surface wall of the limiting ring (7) is abutted against the sealing plate (5).
CN202210000837.0A 2022-01-04 2022-01-04 Mounting structure of gas pressure regulator Active CN114001189B (en)

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CN114001189B CN114001189B (en) 2022-03-29

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19702173C1 (en) * 1997-01-23 1998-04-09 Fluehs Drehtechnik Gmbh Socket for gas-union
JPH1137119A (en) * 1997-07-23 1999-02-09 Yamaha Motor Co Ltd Coming-off lock structure for screw plug
JP2001153249A (en) * 1999-11-30 2001-06-08 Kubota Corp Cover flange for diffusion valve
JP2005195065A (en) * 2004-01-05 2005-07-21 Join Top Co Ltd Pipe connector
DE102008038544A1 (en) * 2008-08-20 2010-03-04 Protechna S.A. Removable valve e.g. flap valve, for transporting and storing liquid in e.g. pallet container, has external wall whose internal thread is connected to sealing surface, where housing and flange are made of plastic material
EP2360408A1 (en) * 2010-02-12 2011-08-24 Elisabet Patricia Pires Cabado Security splicing system of aligned pipes, against the expansion and/or contraction thereof
CN108869846A (en) * 2018-08-10 2018-11-23 湖州森纳德电子科技有限公司 A kind of stepper motor electromagnetic combined valve
CN111609227A (en) * 2020-06-09 2020-09-01 鲁忠华 Connecting pipeline for new energy heat supply and heating
CN212886516U (en) * 2020-09-14 2021-04-06 泉州市晨瑞机床附件制造有限公司 Spiral steel band protection casing
CN112728178A (en) * 2020-12-29 2021-04-30 河北鑫星调压器有限公司 Gas pressure regulator with good air tightness
CN112728120A (en) * 2020-12-29 2021-04-30 河北鑫星调压器有限公司 Safe explosion-proof type gas pressure regulator
CN214093448U (en) * 2020-12-29 2021-08-31 无锡市生丰锻造有限公司 Flange joint and flange plate connecting sleeve

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19702173C1 (en) * 1997-01-23 1998-04-09 Fluehs Drehtechnik Gmbh Socket for gas-union
JPH1137119A (en) * 1997-07-23 1999-02-09 Yamaha Motor Co Ltd Coming-off lock structure for screw plug
JP2001153249A (en) * 1999-11-30 2001-06-08 Kubota Corp Cover flange for diffusion valve
JP2005195065A (en) * 2004-01-05 2005-07-21 Join Top Co Ltd Pipe connector
DE102008038544A1 (en) * 2008-08-20 2010-03-04 Protechna S.A. Removable valve e.g. flap valve, for transporting and storing liquid in e.g. pallet container, has external wall whose internal thread is connected to sealing surface, where housing and flange are made of plastic material
EP2360408A1 (en) * 2010-02-12 2011-08-24 Elisabet Patricia Pires Cabado Security splicing system of aligned pipes, against the expansion and/or contraction thereof
CN108869846A (en) * 2018-08-10 2018-11-23 湖州森纳德电子科技有限公司 A kind of stepper motor electromagnetic combined valve
CN111609227A (en) * 2020-06-09 2020-09-01 鲁忠华 Connecting pipeline for new energy heat supply and heating
CN212886516U (en) * 2020-09-14 2021-04-06 泉州市晨瑞机床附件制造有限公司 Spiral steel band protection casing
CN112728178A (en) * 2020-12-29 2021-04-30 河北鑫星调压器有限公司 Gas pressure regulator with good air tightness
CN112728120A (en) * 2020-12-29 2021-04-30 河北鑫星调压器有限公司 Safe explosion-proof type gas pressure regulator
CN214093448U (en) * 2020-12-29 2021-08-31 无锡市生丰锻造有限公司 Flange joint and flange plate connecting sleeve

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