CN113991590A - Oil leakage prevention cable sealing joint - Google Patents

Oil leakage prevention cable sealing joint Download PDF

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Publication number
CN113991590A
CN113991590A CN202111357411.2A CN202111357411A CN113991590A CN 113991590 A CN113991590 A CN 113991590A CN 202111357411 A CN202111357411 A CN 202111357411A CN 113991590 A CN113991590 A CN 113991590A
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CN
China
Prior art keywords
joint
cavity
sealing
ring
thread
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Granted
Application number
CN202111357411.2A
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Chinese (zh)
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CN113991590B (en
Inventor
陈华约
唐海峰
林盛銮
柳烨
陈义强
蔡克
聂小林
李敬梓
章伟金
陈德水
仝晓龙
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Ebara Great Pumps Co Ltd
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Ebara Great Pumps Co Ltd
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Publication date
Application filed by Ebara Great Pumps Co Ltd filed Critical Ebara Great Pumps Co Ltd
Priority to CN202111357411.2A priority Critical patent/CN113991590B/en
Priority claimed from CN202111357411.2A external-priority patent/CN113991590B/en
Publication of CN113991590A publication Critical patent/CN113991590A/en
Application granted granted Critical
Publication of CN113991590B publication Critical patent/CN113991590B/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00Cable fittings
    • H02G15/013Sealing means for cable inlets

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  • Gasket Seals (AREA)

Abstract

The invention discloses an oil leakage prevention cable sealing joint which comprises a joint front section and a joint rear section which are both arranged in a hollow mode, and further comprises a pressing ring, a sealing ring and a gasket, wherein an installation thread is arranged at one end of the joint front section, a cavity is arranged at the other end of the joint front section, a taper hole section is arranged at one end, close to the installation thread, of the cavity, a connecting internal thread is arranged at the opening end of the cavity, guide grooves are symmetrically formed in the side wall of the cavity, the sealing ring is arranged in the cavity, the pressing ring is arranged in the cavity, one end of the pressing ring is abutted to the sealing ring, a guide bulge is arranged on the outer wall of the pressing ring and is in sliding fit with the guide grooves, a connecting external thread is arranged at one end of the joint rear section, the connecting external thread is screwed in the connecting internal thread, one end, provided with the connecting external thread, of the joint rear section is abutted to the pressing ring, the service life of the sealing joint is greatly prolonged, and the oil leakage prevention effect is good.

Description

Oil leakage prevention cable sealing joint
Technical Field
The invention relates to the technical field of cable sealing connection, in particular to an oil leakage prevention cable sealing joint.
Background
In various bearing bodies of rotating equipment and various other oil-containing equipment, various instruments or sensors are often installed in the equipment for real-time detection of the equipment, signals of the instruments or the sensors are often transmitted by cables penetrating through a shell of the equipment and connected with the sensors or the instruments, so that oil can slowly seep out through axial gaps of the cables of the instruments, the oil seepage can pollute the surrounding environment, oil loss is caused, and particularly in an explosion-proof area, serious risk hazards exist. In particular, in the chemical industry and oil refining industry, the requirement for preventing oil leakage is extremely strict, so the design of an oil leakage prevention joint of an instrument or a sensor cable entering and exiting a shell is particularly important.
Disclosure of Invention
The invention aims to provide an oil leakage prevention cable sealing joint, which replaces a joint rear section to directly compress a sealing ring by compressing the sealing ring through a compression ring, eliminates the influence of torsional force generated when the joint rear section is screwed into a joint front section on the sealing ring due to the combined action of a guide protrusion on the compression ring and a guide groove on the joint front section, prevents the sealing ring from being twisted and deformed in a cavity so as to be convenient for later disassembly and assembly, adopts high-stability, oil-resistant, high-temperature-resistant and aging-resistant fluororubber as the sealing ring, greatly prolongs the service life of the sealing joint, has good oil leakage prevention effect, and solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: an oil leakage prevention cable sealing joint comprises a joint front section 1 and a joint rear section 2 which are both arranged in a hollow manner, and further comprises a pressing ring 3, a sealing ring 4 and a gasket 5, wherein an installation thread 11 is arranged at one end of the joint front section 1, a cavity 15 is arranged at the other end of the joint front section 1, a taper hole section 10 is arranged at one end, close to the installation thread 11, of the cavity 15, a connecting internal thread 13 is arranged at the opening end of the cavity 15, guide grooves 9 are symmetrically formed in the side wall of the cavity 15, the sealing ring 4 is arranged in the cavity 15, the pressing ring 3 is arranged in the cavity 15, one end of the pressing ring 3 is abutted against the sealing ring 4, a guide protrusion 7 is arranged on the outer wall of the pressing ring 3, the guide protrusion 7 is in sliding fit with the guide grooves 9, a connecting external thread 12 is arranged at one end of the joint rear section 2, and the connecting external thread 12 is screwed in the connecting internal thread 13, the joint rear section 2 is provided with one end connected with the external thread 12 and is abutted to the compression ring 3.
Further: still include gasket 5, gasket 5 install in 10 tip bottoms of taper hole section, 4 one end of sealing washer with gasket 5 butt.
Further: a plurality of first through holes 8 are arranged in parallel on the sealing ring 4, the axes of the first through holes 8 are parallel to the axis of the joint front section 1, and the sealing ring 4 is made of fluororubber.
Further: and a second through hole 14 is formed in the pressing ring 3, and the axis of the second through hole 14 is coaxial with the axis of the joint front section 1.
Further: the other end of the joint rear section 2 is provided with an outlet internal thread 6.
The invention has the beneficial effects that: the utility model provides a prevention of seepage oily cable sealing joint, this sealing joint compresses tightly the sealing washer through the clamping ring and replaces the direct sealing washer that compresses tightly of joint back end, because the protruding guide way combined action that connects the anterior segment of direction on the clamping ring, eliminated and connect the back end and twist the influence to tight sealing washer of produced torsional force when connecting the anterior segment, prevent that the sealing washer from twisting deformation in the cavity is inside, so that dismouting once more later, and simultaneously, push into the sealing washer parallel with the sealing washer and push into the taper hole section and make the sealing washer evenly contract tight sealed effectual, and the sealing washer adopts high stability, resistant oil, high temperature resistant, ageing-resistant fluororubber, the life-span of sealing joint has been prolonged greatly, it is effectual to prevent seepage oily.
Drawings
FIG. 1 is a schematic view of an assembly of the present invention.
Fig. 2 is a schematic exploded view of the present invention.
Figure 3 is a front view of a pressure ring of the sealing joint of the present invention.
In the figure: 1. a joint front section; 2. a rear section of the joint; 3. pressing a ring; 4. a seal ring; 5. a gasket; 6. outlet internal threads; 7. a guide projection; 8. a first through hole; 9. a guide groove; 10. a tapered bore section; 11. installing threads; 12. connecting external threads; 13. connecting the internal threads; 14. a second through hole; 15. a cavity.
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.
Referring to fig. 1-3, an oil-seepage-proof cable sealing joint comprises a joint front section 1 and a joint rear section 2 which are both arranged in a hollow manner, a pressing ring 3 and a sealing ring 4, gasket 5, connect 1 one end of anterior segment and be equipped with mounting thread 11, connect 1 other end of anterior segment and be equipped with cavity 15, the one end that cavity 15 is close to mounting thread 11 is provided with taper hole section 10, the 15 open end of cavity is provided with connects internal thread 13, guide way 9 has been seted up to 15 lateral wall symmetries of cavity, sealing washer 4 is installed in cavity 15, clamping ring 3 is installed in cavity 15 and 3 one end of clamping ring and 4 butts of sealing washer, be provided with direction arch 7 on the 3 outer walls of clamping ring, direction arch 7 and 9 sliding fit of guide way, connect 2 one end in back end to be provided with and connect external screw thread 12, connect external screw thread 12 and fit soon in connecting internal thread 13, connect back end 2 to be provided with the one end and the 3 butts of clamping ring of connecting external screw thread 12.
Preferably: still include gasket 5, gasket 5 is installed in 10 tip bottoms of taper hole sections, and 4 one end of sealing washer and 5 butts of gasket.
Preferably: a plurality of first through holes 8 are arranged in parallel on the sealing ring 4, the axes of the first through holes 8 are parallel to the axis of the joint front section 1, and the sealing ring 4 is made of fluororubber.
Preferably: and a second through hole 14 is formed in the pressing ring 3, and the axis of the second through hole 14 is coaxial with the axis of the joint front section 1.
Preferably: the other end of the joint rear section 2 is provided with an outlet internal thread 6.
The invention provides an oil leakage prevention cable sealing joint, which is mounted when in use, a cable (not shown) sequentially passes through a joint rear section 2, a pressing ring 3, a sealing ring 4, a gasket 5 and a joint front section 1, then the joint front section 1 is screwed on an equipment shell (not shown), then the gasket 5 and the sealing ring 4 are sequentially plugged into the joint front section 1, then a guide bulge 7 of the pressing ring 3 is aligned with a guide groove 9 on the joint front section 1 and then put in, finally the joint rear section 2 is screwed into the joint front section 1 until the cable is compressed, the sealing joint compresses the sealing ring 4 through the pressing ring 3 to replace the joint rear section 2 to directly compress the sealing ring 4, because the guide bulge 7 on the pressing ring 3 and the guide groove 9 on the joint front section 1 act together, the influence of the torsional force generated when the joint rear section 2 is screwed into the joint front section 1 on the sealing ring 4 is eliminated, and the sealing ring 4 is prevented from being twisted and deformed in a cavity 15, so that dismouting once more later on, simultaneously, push into taper hole section 10 through clamping ring 3 with 4 parallel thrusts of sealing washer and make 4 even crimples of sealing washer sealed effectual to sealing washer 4 adopts high stability, resistant oil, high temperature resistant, ageing-resistant fluororubber, has prolonged sealing joint's life-span greatly, and prevention of seepage oil is effectual.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a prevention leakage oil cable sealing joint, is including joint anterior segment (1) and joint back end (2) that are the cavity setting, its characterized in that: the sealing device is characterized by further comprising a pressing ring (3), a sealing ring (4) and a gasket (5), wherein an installation thread (11) is arranged at one end of the joint front section (1), a cavity (15) is arranged at the other end of the joint front section (1), a taper hole section (10) is arranged at one end, close to the installation thread (11), of the cavity (15), a connection internal thread (13) is arranged at the open end of the cavity (15), guide grooves (9) are symmetrically formed in the side wall of the cavity (15), the sealing ring (4) is arranged in the cavity (15), the pressing ring (3) is arranged in the cavity (15), one end of the pressing ring (3) is abutted against the sealing ring (4), a guide protrusion (7) is arranged on the outer wall of the pressing ring (3), the guide protrusion (7) is in sliding fit with the guide grooves (9), and a connection external thread (12) is arranged at one end of the joint rear section (2), connect external screw thread (12) and revolve fit in connect in internal thread (13), connect back end (2) be provided with the one end of connecting external screw thread (12) with clamping ring (3) butt.
2. An oil-tight cable gland according to claim 1, wherein: still include gasket (5), install in gasket (5) taper hole section (10) tip bottom, sealing washer (4) one end with gasket (5) butt.
3. An oil-tight cable gland according to claim 2, wherein: a plurality of first through holes (8) are arranged in parallel on the sealing ring (4), the axes of the first through holes (8) are parallel to the axis of the joint front section (1), and the sealing ring (4) is made of fluororubber.
4. An oil-tight cable gland joint according to claim 3, wherein: and a second through hole (14) is formed in the pressing ring (3), and the axis of the second through hole (14) is coaxial with the axis of the joint front section (1).
5. An oil-tight cable gland joint according to claim 4, wherein: the other end of the joint rear section (2) is provided with an outlet internal thread (6).
CN202111357411.2A 2021-11-17 Oil-seepage-proof cable sealing joint Active CN113991590B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111357411.2A CN113991590B (en) 2021-11-17 Oil-seepage-proof cable sealing joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111357411.2A CN113991590B (en) 2021-11-17 Oil-seepage-proof cable sealing joint

Publications (2)

Publication Number Publication Date
CN113991590A true CN113991590A (en) 2022-01-28
CN113991590B CN113991590B (en) 2024-06-25

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2264832Y (en) * 1996-10-18 1997-10-15 川路塑胶有限公司 Multi-functional pipe joint
JP3161327U (en) * 2010-05-14 2010-07-29 全冠企業有限公司 Twin packing power cable and wave tube waterproof fixed head
CN201925608U (en) * 2011-01-19 2011-08-10 南京智达康无线通信科技股份有限公司 Sealing element special for Ethernet connector of outdoor equipment
CN102705615A (en) * 2012-06-20 2012-10-03 常州升腾管业有限公司 Quick coupling
CN203536920U (en) * 2013-10-29 2014-04-09 北京明峰时代防爆技术有限公司 Explosion-proof cable entry device
CN207082822U (en) * 2017-07-20 2018-03-09 泰州市得尔机电制造有限公司 Cable sealed joint
CN110112693A (en) * 2019-05-30 2019-08-09 沪东中华造船(集团)有限公司 A kind of novel diameter reducing cable gland
CN210092844U (en) * 2019-05-26 2020-02-18 泰州市得尔机电制造有限公司 Sealing joint for cable
CN212183088U (en) * 2020-04-15 2020-12-18 浙江中控技术股份有限公司 Multiple sealed explosion-proof cable joint
CN212210458U (en) * 2020-07-02 2020-12-22 天水逢泰科技有限责任公司 Improved cable high-sealing structure

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2264832Y (en) * 1996-10-18 1997-10-15 川路塑胶有限公司 Multi-functional pipe joint
JP3161327U (en) * 2010-05-14 2010-07-29 全冠企業有限公司 Twin packing power cable and wave tube waterproof fixed head
CN201925608U (en) * 2011-01-19 2011-08-10 南京智达康无线通信科技股份有限公司 Sealing element special for Ethernet connector of outdoor equipment
CN102705615A (en) * 2012-06-20 2012-10-03 常州升腾管业有限公司 Quick coupling
CN203536920U (en) * 2013-10-29 2014-04-09 北京明峰时代防爆技术有限公司 Explosion-proof cable entry device
CN207082822U (en) * 2017-07-20 2018-03-09 泰州市得尔机电制造有限公司 Cable sealed joint
CN210092844U (en) * 2019-05-26 2020-02-18 泰州市得尔机电制造有限公司 Sealing joint for cable
CN110112693A (en) * 2019-05-30 2019-08-09 沪东中华造船(集团)有限公司 A kind of novel diameter reducing cable gland
CN212183088U (en) * 2020-04-15 2020-12-18 浙江中控技术股份有限公司 Multiple sealed explosion-proof cable joint
CN212210458U (en) * 2020-07-02 2020-12-22 天水逢泰科技有限责任公司 Improved cable high-sealing structure

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