KR20120098009A - Bellows type joint using function safety and alarm - Google Patents

Bellows type joint using function safety and alarm Download PDF

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Publication number
KR20120098009A
KR20120098009A KR1020110017653A KR20110017653A KR20120098009A KR 20120098009 A KR20120098009 A KR 20120098009A KR 1020110017653 A KR1020110017653 A KR 1020110017653A KR 20110017653 A KR20110017653 A KR 20110017653A KR 20120098009 A KR20120098009 A KR 20120098009A
Authority
KR
South Korea
Prior art keywords
bellows
alarm
change
primary
type joint
Prior art date
Application number
KR1020110017653A
Other languages
Korean (ko)
Inventor
박형도
Original Assignee
주식회사 진흥기공
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 주식회사 진흥기공 filed Critical 주식회사 진흥기공
Priority to KR1020110017653A priority Critical patent/KR20120098009A/en
Publication of KR20120098009A publication Critical patent/KR20120098009A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
    • F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
    • F16L27/1012—Flanged joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
    • F16L27/107—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
    • F16L27/11—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
    • F16L27/111—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations the bellows being reinforced
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/20—Safety or protective couplings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/30—Detecting leaks

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)
  • Joints Allowing Movement (AREA)

Abstract

PURPOSE: A bellows-type joint with an alarm and safety function is provided to safely manage a dangerous or expensive liquid by preventing the liquid from being discharged to outside even when one of first and second bellows is cracked or damaged by a change of temperature or a change in the ground. CONSTITUTION: A bellows-type joint with an alarm and safety function comprises a first bellows(2), a second bellows(3), a hollow body(4), a pressure sensor(5), an alarm(6), and support combining pieces(7,7a). The hollow body is formed in between the first and second bellows and forms a constant atmospheric pressure. The pressure sensor is joined to the hollow body, thereby sensing a change of an internal atmospheric pressure. The alarm informs of the change of the internal atmospheric pressure. The support combining pieces combines the first and second bellows with two end pipes(1,1a). [Reference numerals] (5) Pressure sensor; (6) Alarm

Description

Bellows type joint using function safety and alarm}

The present invention relates to a bellows-type joint having an alarm and a safety function, and more particularly, to a bellows-type joint configured to be coupled between a pipe and a pipe for transporting a fluid such as various gases or liquids. Double bellows) and alarm function to alert the replacement time by ringing a buzzer when an abnormal condition such as a sudden increase or decrease of pressure occurs due to damage or damage of the bellows. Accordingly, the alarm and safety function can be used to increase the lifespan from excessive pressure or corrosion, and to replace the bellows without any leakage of fluid because the secondary bellows is configured even if the primary bellows are broken or cracked. It relates to a bellows-type joint having a.

In general, a bellows type is provided between the pipe for transporting fluid and the pipe to absorb the expansion and contraction of the pipe caused by temperature change or ground change to prevent breakage or to smoothly transport the fluid. Bellows in the joint consisted of only a single configuration.

This prior art has not been able to know in advance the timing of replacement of the bellows, it is necessary to replace regardless of the service life when the approximate time.

In this case, there is no problem, that is, the cost of replacing the more usable joint and the inconvenience of frequent replacement.

On the other hand, the bellows may be broken or damaged due to an unexpected cause such as temperature change or ground change irrespective of the replacement time, thereby causing a problem that a very dangerous fluid or expensive fluid is discharged to the outside.

In this case, not only will they have to pay more, but also unexpected loss of life and environmental pollution will occur.

Accordingly, the present invention has been invented to solve the above-mentioned problems, and an object of the present invention is to provide a bellows-type joint formed between a pipe and a pipe for transporting fluid such as various gases and liquids. Double bellows on the bellows type joint and alarm function to alert the replacement time by ringing the buzzer when an abnormal condition such as a sudden increase or decrease in pressure occurs due to damage or damage to the bellows. As the bellows is constructed, the service life is increased from excessive pressure or corrosion, and the secondary bellows is formed even when the primary bellows are damaged or cracked, so that the fluid can be exchanged stably without leaking the fluid. To provide a bellows type joint with alarm and safety features.

As a first embodiment for achieving the object of the present invention, the end pipes of both sides constituting the body of the bellows-type joint constituting the coupling between the pipe and the pipe for transporting fluid such as various gases or liquids Combining the double bellows as the primary bellows and the secondary bellows to absorb the expansion and contraction of the pipe caused by the temperature change or the ground change in order to prevent breakage or smooth transfer of fluid.

A hollow body is formed between the primary bellows and the secondary bellows, and a constant air pressure (eg, atm) is formed in the hollow body.

It is combined with the hollow body to detect a pressure change in the hollow body and to configure a pressure sensor and alarm to inform the change,

The primary bellows and the secondary bellows is configured to constitute a support coupling piece for engaging and supporting the end pipes on both sides.

As a second embodiment for achieving the object of the present invention, and the outer cylinder constituting the body of the bellows-type joint constituting the coupling between the pipe and the pipe for transporting fluids, such as various gases and liquids Primary bellows for absorbing expansion and contraction of pipe caused by temperature change or ground change between inner cylinder and inner cylinder in inner cylinder configured inside of outer cylinder Double bond as secondary bellows,

A hollow body is formed between the primary bellows and the secondary bellows, and a constant air pressure (eg, atm) is formed in the hollow body.

It is combined with the hollow body to detect a pressure change in the hollow body and to configure a pressure sensor and alarm to inform the change,

The primary bellows and the secondary bellows is to constitute a support coupling piece for engaging and supporting both ends of the outer cylinder and the inner cylinder.

In the present invention as described above, the primary and secondary bellows are dually formed in a bellows type joint formed between the pipe and the pipe for transporting fluid such as various gases and liquids. By configuring the alarm function, if an abnormal condition such as a sudden increase or decrease in pressure occurs due to breakage or damage of the primary or secondary bellows, the buzzer will sound to inform you of the replacement time and exchange it stably.

That is, even if one of the primary and secondary bellows first cracks or breaks due to unexpected expiration of the life span of the primary and secondary bellows or changes in temperature or ground, such a very dangerous or expensive fluid Can be safely managed without the problem of being released to the outside, which can prevent unexpected cost waste, human injury or environmental pollution.

In addition, by constructing the primary and secondary bellows in duplicate, it is possible to increase the life from excessive pressure or corrosion.

1 is a cross-sectional view showing a part of the overall configuration for the "bellow-type joint with alarm and safety function" according to the present invention.
Figure 2 is a side view of the "bellow type joint with alarm and safety function" according to the present invention.
Figure 3 is a cross-sectional view showing a part of the overall configuration of another embodiment of the "bellow-type joint with alarm and safety function" according to the present invention.

Hereinafter, described in detail with reference to the accompanying drawings shown as a preferred embodiment as follows.

Terms defined in the description of the present invention are defined in consideration of functions and forms in the present invention, and should not be understood as meanings that limit the technical components of the present invention.

The present invention may be modified in various ways and may have various forms, and thus embodiments (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In addition, in the drawings, the components are exaggerated in size (or thickness), in size (or thickness), in size (or thickness), or in a simplified form or simplified in view of convenience of understanding. It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. .

First, the first embodiment of the present invention will be described with reference to FIGS. 1 and 2 as follows.

Changes in temperature between the end pipes 1 and 1a on both sides of the bellows-type joint body A, which are coupled between the pipes for transporting fluid such as various gases and liquids, The primary bellows 2 and the secondary bellows 3 are dually coupled to absorb the expansion and contraction of the pipe P generated by the change of the ground to prevent breakage or to smoothly transfer the fluid.

A hollow body 4 is formed between the primary bellows 2 and the secondary bellows 3, and a constant air pressure (eg, atm) is formed in the hollow body 4. Coupled with the sieve (4) constitutes a pressure sensor (5) and an alarm (6) to detect the change in air pressure in the hollow body (4) and to inform the change.

In addition, a valve (V) is formed between the hollow body (4) and the pressure sensor (5).

The primary bellows 2 and the secondary bellows 3 are constituted by a support engagement piece 7 (a) which engages and supports the end pipes 1 and 1a on both sides.

The primary bellows 2 and the secondary bellows 3 are elastic and consist of one or multiple layers.

Inside the primary bellows 2, a flow plate 8 for smoothly flowing the fluid is installed. However, in some cases, the flow plate 8 may be omitted.

It is configured by integrally forming a flange (9) (9a) at the outer end of the both end pipe (1) (1a), the flange (9) (9a) can be bent integrally formed by pressing. In addition, although it may be molded integrally by casting, in the present invention, the bending is integrally formed mainly by pressing.

The holders 10 and 10a are fixedly installed at a plurality of predetermined positions between the end pipes 1 and 1a on both sides, and the bolts 11 are coupled to each other by nuts 12.

The present invention configured as described above combines the "bellow-type joint with alarm and safety function" of the present invention to a pipe (P) for transferring fluids such as various gases and liquids, and holders 10 and 10a. The bolt 11 and the nut 12 which were attached to) are removed, and are used.

The primary and secondary bellows (2) (3) absorbs the expansion and contraction of the pipe (P) generated by the change in temperature, the ground changes, etc. to prevent breakage or smooth transfer of fluid do.

In the present invention used as described above, when one of the primary bellows 2 or the secondary bellows 3 is first cracked or damaged due to an unexpected cause due to the end of life or a change in temperature or ground, etc. A change in air pressure in the hollow portion 4 occurs.

That is, when either the primary bellows 2 or the secondary bellows 3 is cracked or damaged first, a change in air pressure occurs in the hollow part 4, and the pressure sensor 5 detects this. To inform the signal through the alarm (6).

For example, in the case where the primary bellows 2 is broken and the primary bellows 2 is broken, it is higher than 1 atm when the secondary bellows 3 is broken. The pressure sensor 5 detects this and informs the signal through the alarm 6.

Replace the bellows type joint according to the signal of the alarm 6 as above.

Therefore, either of the primary and secondary bellows (2) (3) cracks first due to an unexpected cause such as the end of life of the primary and secondary bellows (2) (3) or a change in temperature or ground change. Even if damage or damage occurs, it can be safely managed without the problem of releasing very dangerous fluids or expensive fluids to the outside, thereby preventing unexpected cost waste, human injury or environmental pollution.

In addition, by constructing the primary and secondary bellows (2) (3) in duplicate, it is possible to increase the life from excessive pressure or corrosion.

The support coupling pieces 9 and 9a may be formed in the end pipes 1 and 1a of both sides to form the hollow portion 4 by coupling and supporting the primary bellows 2 and the secondary bellows 3. And a pressure sensor 5 and an alarm 6 can be configured.

A flow plate 8 is formed inside the primary bellows 2 to facilitate the flow of the fluid.

The holders 10 and 10a are fixedly installed at a plurality of predetermined positions between the end pipes 9 and 9a on both sides, and the bolts 11 are laterally fastened and coupled by nuts 12 therebetween. It is to protect the breakage of the primary and secondary bellows (2) (3) by the bearing force of the bolt (11) during the manufacture or storage of the "bellow-type joint" of the transfer and transfer the fluid as mentioned above After the construction is completed in the pipe (P) to be used after removing the nut (12) to remove the bolt (11).

Next, a description will be given according to FIG. 3 as a second embodiment of the present invention.

It is comprised inside the outer cylinder 100 and the outer cylinder 100 which comprise the body A of the bellows-type joint which couple | bonds and comprises the pipe | tube which conveys fluids, such as various gases and liquids, and a pipe | tube. In the inner cylinder 200 to absorb the expansion and contraction of the tube generated by the temperature change or the ground change between the outer cylinder 100 and the inner cylinder 200 to prevent breakage or smooth transfer of fluid The primary bellows (2a) and the secondary bellows (3a) as a double configuration.

A hollow body 4a is formed between the primary bellows 2a and the secondary bellows 3a, and a constant air pressure (eg, atm) is formed inside the hollow body 4a.

Coupled with the hollow body 4a, the pressure sensor 5a and the alarm 6a detect a change in air pressure inside the hollow body 4a and notify the change.

Further, a valve V1 is formed between the hollow body 4a and the pressure sensor 5a so that a constant air pressure (for example, 1 atm), i.e., the inside of the hollow body 4a is formed by the valve V1. Adjust and set so that the standard air pressure is formed.

Support coupling pieces (700) (700a), (800) (800a) for supporting the primary bellows (2a) and the secondary bellows (3a) by coupling to the both ends of the outer cylinder 100 and the inner cylinder 200 ).

And between the support coupling piece 700a and the inner cylinder 200 on the right side coupled with the primary bellows 2a in the representation of the drawing is configured to flow with each other, and also the grand packing 900 is coupled to the side of the configuration.

The present invention configured as described above has the " bellow-type joint having alarm and safety function " of the present invention in a pipe P for transferring fluids such as various gases and liquids as described in the first embodiment. Use in combination.

The primary and secondary bellows (2a) (3a) to absorb the expansion and contraction of the pipe (P) generated by the change in temperature, the ground changes, etc. to prevent breakage or smooth transfer of fluid do.

In the present invention used as described above, the secondary bellows 3a of the primary bellows 2a or the secondary bellows 3a are first cracked or damaged due to an unexpected cause due to the end of life, temperature change or ground change. When this occurs, a change in air pressure in the hollow portion 4a occurs.

By the way, the secondary bellows 3a is first cracked or broken due to an unexpected cause due to the end of life or a change in temperature or ground, etc. However, the primary bellows 2a may be cracked or broken first. In this case, however, the secondary bellows 3a is first cracked or broken.

Therefore, when the secondary bellows 3a is cracked or broken, the air pressure in the hollow portion 4a is increased.

For example, if it is set at 1 atmosphere inside the hollow portion 4a, if the secondary bellows 3a is broken, the pressure is higher than 1 atmosphere and the sensor 5a detects this and informs the signal through the alarm 6a. .

As described above, the bellows-type joint is replaced according to the signal of the alarm 6a.

Therefore, either of the primary or secondary bellows (2a) (3a) is cracked first due to an unexpected cause such as the end of life of the primary or secondary bellows (2a) (3a) or a change in temperature or ground change. Even if damage or damage occurs, it can be safely managed without the problem of releasing very dangerous fluids or expensive fluids to the outside, thereby preventing unexpected cost waste, human injury or environmental pollution.

In addition, by constructing the primary and secondary bellows (2a) (3a) in duplicate, it is possible to increase the life from excessive pressure or corrosion, and even if the secondary bellows (3a) is damaged, the primary bellows (2a) It is possible to transfer the fluid by means of sufficient time and safely replace it.

The support coupling pieces 700, 700a, 800, and 800a may be configured to support the primary bellows 2a and the secondary bellows 3a to form a hollow portion 4a, and to form a hollow portion 4a. 4a) It is possible to accurately know the replacement time by the detection sensor 5a and the alarm 6a according to the internal air pressure change.

A: Body P: Tube
V, V1: valve
1,1a: end pipe 2,2a: primary bellows
3,3a: secondary bellows 4,4a: hollow part
5,5a: Sensor 6,6a: Alarm
7,7a: support piece 8: flow plate
9,9a: flange 10,10a: holder
11: bolt 12: nut
100: outer cylinder 200: inner cylinder
700,700a, 800,800a: Support piece
900: grand packing

Claims (5)

Changes in temperature between the end pipes 1 and 1a on both sides of the bellows-type joint body A, which are coupled between the pipes for transporting fluid such as various gases and liquids, Composed of the primary bellows (2) and the secondary bellows (3) to absorb the expansion and contraction of the pipe generated by the change of the ground to prevent breakage or smooth transfer of fluid,
A hollow body 4 is formed between the primary bellows 2 and the secondary bellows 3 so that a constant air pressure is formed.
Combining with the hollow body 4 constitutes a pressure sensor 5 and an alarm 6 for detecting a change in air pressure inside the hollow body 4 and informing the change,
An alarm, characterized in that it comprises a support engagement piece (7) (7a) for supporting the primary bellows (2) and the secondary bellows (3) by coupling to the end pipe (1) (1a) on both sides; Bellows-type joint with safety function. The bellows having an alarm and safety function according to claim 1, characterized in that a flow plate (8) for smoothly flowing the fluid is installed inside the primary bellows (2). Type joint. 2. A plurality of holders (10) (10a) are fixedly installed between end pipes (1) (1a) on both sides, and bolts (11) are coupled to each other by nuts (12). Bellows-type joint with alarm and safety function. It is comprised inside the outer cylinder 100 and the outer cylinder 100 which comprise the body A of the bellows-type joint which couple | bonds and comprises the pipe | tube which conveys fluids, such as various gases and liquids, and a pipe | tube. In the inner cylinder 200 to absorb the expansion and contraction of the tube generated by the temperature change or the ground change between the outer cylinder 100 and the inner cylinder 200 to prevent breakage or smooth transfer of fluid Combination configuration with the primary bellows (2a) and the secondary bellows (3a),
A hollow body 4a is formed between the primary bellows 2a and the secondary bellows 3a so that a constant air pressure is formed.
Combining with the hollow body 4a constitutes a pressure sensor 5a and an alarm 6a for detecting a change in air pressure inside the hollow body 4a and informing the change.
Support coupling pieces (700) (700a), (800) (800a) for supporting the primary bellows (2a) and the secondary bellows (3a) by coupling to both ends of the outer cylinder 100 and the inner cylinder 200 Bellows type joint with alarm and safety features, characterized in that consisting of). The bellows type joint with alarm and safety function according to claim 4, wherein the support coupling piece (700a) coupled with the primary bellows (2a) is configured to flow with the inner cylinder (200).
KR1020110017653A 2011-02-28 2011-02-28 Bellows type joint using function safety and alarm KR20120098009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110017653A KR20120098009A (en) 2011-02-28 2011-02-28 Bellows type joint using function safety and alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110017653A KR20120098009A (en) 2011-02-28 2011-02-28 Bellows type joint using function safety and alarm

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KR20120098009A true KR20120098009A (en) 2012-09-05

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103486392A (en) * 2013-09-30 2014-01-01 江苏百新波纹管有限公司 Direct burial inside and outside pressure automatic alarming bellow expansion joint
CN105135137A (en) * 2015-09-24 2015-12-09 江苏广通管业制造有限公司 Expansion joint with expansion coefficient display function
CN106402562A (en) * 2016-12-06 2017-02-15 西华大学 Air pressure type sleeve compensator
US9662956B2 (en) 2015-04-01 2017-05-30 Hyundai Motor Company Device and method for controlling air suspension system
CN107489846A (en) * 2017-09-30 2017-12-19 宝鸡长达电气科技有限公司 A kind of sealed ball compensator with warning device
WO2018111988A1 (en) 2016-12-13 2018-06-21 Monsanto Technology Llc Expansion joint fitting for flammable liquid
CN108278437A (en) * 2018-04-04 2018-07-13 南京知行管业有限公司 A kind of intelligent gas pipeline compensator
CN110410619A (en) * 2019-08-14 2019-11-05 胡昆朋 A kind of expansion joint protection pipe
KR20220009186A (en) * 2020-07-15 2022-01-24 주식회사 에스제이엠 External pressure type bellows expansion joint with fix ring

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103486392A (en) * 2013-09-30 2014-01-01 江苏百新波纹管有限公司 Direct burial inside and outside pressure automatic alarming bellow expansion joint
US9662956B2 (en) 2015-04-01 2017-05-30 Hyundai Motor Company Device and method for controlling air suspension system
CN105135137A (en) * 2015-09-24 2015-12-09 江苏广通管业制造有限公司 Expansion joint with expansion coefficient display function
CN106402562A (en) * 2016-12-06 2017-02-15 西华大学 Air pressure type sleeve compensator
WO2018111988A1 (en) 2016-12-13 2018-06-21 Monsanto Technology Llc Expansion joint fitting for flammable liquid
CN110249169A (en) * 2016-12-13 2019-09-17 孟山都技术公司 Expansion joint accessory for flammable liquid
EP3555516A4 (en) * 2016-12-13 2020-05-27 Monsanto Technology LLC Expansion joint fitting for flammable liquid
US11204116B2 (en) 2016-12-13 2021-12-21 Monsanto Technology Llc Expansion joint fitting for flammable liquid
CN107489846A (en) * 2017-09-30 2017-12-19 宝鸡长达电气科技有限公司 A kind of sealed ball compensator with warning device
CN108278437A (en) * 2018-04-04 2018-07-13 南京知行管业有限公司 A kind of intelligent gas pipeline compensator
CN110410619A (en) * 2019-08-14 2019-11-05 胡昆朋 A kind of expansion joint protection pipe
KR20220009186A (en) * 2020-07-15 2022-01-24 주식회사 에스제이엠 External pressure type bellows expansion joint with fix ring

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