CN103178474A - Pipe fitting and sealing structure thereof - Google Patents
Pipe fitting and sealing structure thereof Download PDFInfo
- Publication number
- CN103178474A CN103178474A CN2012104848843A CN201210484884A CN103178474A CN 103178474 A CN103178474 A CN 103178474A CN 2012104848843 A CN2012104848843 A CN 2012104848843A CN 201210484884 A CN201210484884 A CN 201210484884A CN 103178474 A CN103178474 A CN 103178474A
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- China
- Prior art keywords
- ring
- sealing
- sealing ring
- pipe
- pipe fitting
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 130
- 230000008878 coupling Effects 0.000 claims abstract 3
- 238000010168 coupling process Methods 0.000 claims abstract 3
- 238000005859 coupling reaction Methods 0.000 claims abstract 3
- 230000000694 effects Effects 0.000 abstract description 11
- 238000010276 construction Methods 0.000 description 33
- 238000000034 method Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
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- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
- F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
- F16L19/065—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
- H02G3/0616—Joints for connecting tubing to casing
- H02G3/0625—Joints for connecting tubing to casing with means for preventing disengagement of conductors
- H02G3/0675—Joints for connecting tubing to casing with means for preventing disengagement of conductors with bolts operating in a direction parallel to the conductors
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Joints With Pressure Members (AREA)
Abstract
本发明涉及管接件技术领域，公开了一种管接件密封结构，包括套于管件外侧的密封圈、支撑圈、弹圈，所述弹圈的外侧端、所述密封圈的外侧端分别抵靠所述所述联接主体的螺纹端口或所述螺帽的卡紧端；所述支撑圈的两端均为弧形端面，所述密封圈的内侧端为斜坡面，所述支撑圈的两端分别压紧所述弹圈的内侧端、所述密封圈的内侧端。这种结构的管接件密封结构，密封圈与支撑圈之间的接触面为斜坡面与圆弧面的接触，可防止密封圈在管件径向发生错位或窜动，确保密封的密封效果；改变了外部水分进入时的路径，增加了外部水分进入的难度，提高了密封效果。本发明还公开了一种具有上述管接件密封结构的管接件。
The invention relates to the technical field of pipe joints, and discloses a pipe joint sealing structure, which includes a sealing ring, a support ring, and an elastic ring sleeved on the outside of the pipe. The outer end of the elastic ring and the outer end of the sealing ring are respectively against the threaded port of the coupling body or the clamping end of the nut; both ends of the support ring are arc-shaped end faces, the inner end of the sealing ring is a slope surface, and the support ring The two ends respectively press the inner end of the elastic ring and the inner end of the sealing ring. The sealing structure of the pipe joint with this structure, the contact surface between the sealing ring and the support ring is the contact between the slope surface and the arc surface, which can prevent the sealing ring from being dislocated or moving in the radial direction of the pipe fitting, and ensure the sealing effect of the seal; The path of external moisture entering is changed, the difficulty of external moisture entering is increased, and the sealing effect is improved. The invention also discloses a pipe joint with the sealing structure of the pipe joint.
Description
Technical field
The present invention relates to the pipe connecting piece technical field, relate in particular to a kind of pipe connecting piece hermetically-sealed construction, the invention still further relates to a kind of pipe connecting piece with above-mentioned pipe connecting piece hermetically-sealed construction.
Background technology
EMT (electrical-metallic tubing) is a kind of common conduit, and its end adopts pipe connecting piece to connect usually.
Below in conjunction with accompanying drawing, a kind of pipe connecting piece of the prior art is introduced, please refer to Fig. 1, Fig. 1 is a kind of structural representation of typical tube fitting.
This pipe connecting piece generally includes and connects main body 1 ', nut 2 ', sealing ring 4 ', bracing ring 5 ' and bullet circle 6 '; Sealing ring 4 ', bracing ring 5 ', bullet circle 6 ' are placed in EMT (being called pipe fitting 3 ' in the application) outside, are inserted in pipe fitting 3 ' in the endoporus that connects main body 1 '; Connecting at least one end of main body 1 ' is threaded ends, and this end has external screw thread, is used for matching with nut 2 ', and described nut 2 ' has internal thread; One end of nut 2 ' is connected with the threaded ends of described connection main body 1 ', and the other end forms the chucking end, is used for chucking bullet circle 6 ', when screwing nut 2 ', nut 2 ' will compress described bullet circle 6 ', and then compress pipe fitting 3 ', realize pipe fitting 3 ' and connect being fixedly connected with of main body 1 '.
Wherein, sealing ring 4 ' is used for preventing that external water from entering in pipe fitting 3 ' along the junction of nut 2 ', pipe fitting 3 ' and connection main body 1 ', one end of sealing ring 4 ' is against the threaded ends port that connects main body 1 ', the end face of the other end is against the end face of bracing ring 5 ', and the other end of bracing ring 5 ' compresses bullet circle 6 '.Wherein, sealing ring 4 ' is the plane against an end of bracing ring 5 ', and the corresponding end of bracing ring 5 ' is also the plane, and namely both abutment face is the plane.
There is following problem in sealing ring 4 ' with this fit structure of bracing ring 5 ': when sealing ring 4 ', bracing ring 5 ' are installed, owing to being plane contact between sealing ring 4 ' and bracing ring 5 ', sealing ring 4 ' dislocation or play radially easily occur along pipe fitting 3 ', and because sealing ring 4 ' is generally flexible piece, easily snap in bullet circle 6 ' and the gap that connects between main body 1 ', make seal not fit tightly with bracing ring 5 ', the threaded ends port that connects main body 1 ', thereby make seal failure, can't play the effect of waterproof; And, at pipe connecting piece in use, owing to being plane contact between sealing ring 4 ' and bracing ring 5 ', still having certain gap between both, sealing effectiveness is relatively poor.
Therefore, how to prevent the sealing effectiveness of sealing ring dislocation, raising pipe connecting piece, become the technical barrier that those skilled in the art need to be resolved hurrily.
Summary of the invention
First purpose of the present invention is to provide a kind of pipe connecting piece hermetically-sealed construction, and this pipe connecting piece hermetically-sealed construction can prevent the sealing ring dislocation, improve the sealing effectiveness of pipe connecting piece.Second purpose of the present invention is to provide a kind of pipe connecting piece with above-mentioned pipe connecting piece hermetically-sealed construction.
In order to realize above-mentioned first purpose, the invention provides a kind of pipe connecting piece hermetically-sealed construction, be used for sealed pipe fittings, connect the junction between main body and nut, comprise the sealing ring, bracing ring, the bullet circle that are placed in the described pipe fitting outside, the outboard end of described bullet circle, the outboard end of described sealing ring are respectively against the threaded port of described connection main body or the chucking end of described nut; The two ends of described bracing ring are curved end, and the medial extremity of described sealing ring is slope, and the two ends of described bracing ring compress respectively the medial extremity of described bullet circle, the medial extremity of described sealing ring.
Preferably, described bracing ring is to support circle.
Preferably, the end face of the outboard end of the outboard end of described bullet circle, described sealing ring is fitted with the end face of the chucking end of the described threaded port that connects main body or described nut respectively.
Pipe connecting piece hermetically-sealed construction provided by the invention comprises sealing ring, bracing ring, the bullet circle that is placed in the pipe fitting outside, and the outboard end of described bullet circle, the outboard end of described sealing ring are respectively against the threaded port of described connection main body or the chucking end of described nut; The two ends of described bracing ring are curved end, and the medial extremity of described sealing ring is slope, and the two ends of described bracing ring compress respectively the medial extremity of described bullet circle, the medial extremity of described sealing ring.
The pipe connecting piece hermetically-sealed construction of this structure, sealing ring and contact-making surface between bracing ring are slope and the contacting of arc surface, when sealing ring, bracing ring are installed, the arc surface of bracing ring can the press seal circle slope, can radially carry out spacing to sealing ring at pipe fitting, can prevent that sealing ring from pipe fitting, dislocation or play occuring radially, thereby can avoid sealing ring to snap in bullet circle and the gap that connects between main body, make seal to fit tightly with bracing ring, the threaded ends end face that connects main body, guarantee to have sealing effectiveness preferably; And, in seal process, the slope of the arc surface press seal circle of bracing ring is because sealing ring is compliant member, under the effect of thrust, sealing ring generation strain, simultaneously because the end of the slope of sealing ring is thinner, the slope end of sealing ring can be adjacent to the arc surface of bracing ring, makes the good sealing of formation between sealing ring and bracing ring, increase external water and divided the difficulty that enters, improved sealing effectiveness.
When the main sealing effectiveness of the present invention is sealing ring and the sealing of pipe fitting outer wall, can make sealing ring and connect formation sealing between main body and bracing ring, making external water can't pass through the pipe fitting the inside, circular arc surface current place of pipe fitting outer wall, the screw thread place that connects main body, bracing ring; And the sealing ring two ends are the inclined-plane, two ends can form respectively the sealing of two places, one place is sealing ring and the sealing that connects between sealing between the main body screw end and sealing ring and pipe fitting outer wall place, two places are the sealing ring of sealing between sealing ring and bracing ring and bracing ring abutting end and the sealing between pipe fitting outer wall place, so just can form the twice exclusion seal, sealing effectiveness is better.
In order to realize above-mentioned second purpose, the present invention also provides a kind of pipe connecting piece, this pipe connecting piece comprises the connection main body, and described connection main body two ends all have threaded ends, and at least one threaded ends of described connection main body is connected with nut, pipe fitting and above-mentioned pipe connecting piece hermetically-sealed construction.Because above-mentioned pipe connecting piece hermetically-sealed construction has above-mentioned technique effect, the pipe connecting piece with above-mentioned pipe connecting piece hermetically-sealed construction also should possess corresponding technique effect.
Preferably, the threaded ends at the two ends of described connection main body all is connected with the hermetically-sealed construction of nut, pipe fitting and above-mentioned pipe connecting piece.
Preferably, the threaded ends of an end of described connection main body is connected with the hermetically-sealed construction of nut, pipe fitting and above-mentioned pipe connecting piece, and the threaded ends of the other end is connected with lock nut and Sealing shield ring.
Description of drawings
Fig. 1 is a kind of structural representation of typical tube fitting;
The structural representation of the pipe connecting piece hermetically-sealed construction that Fig. 2 provides for first embodiment of the invention;
Fig. 3 is the blast structural representation of pipe connecting piece hermetically-sealed construction in Fig. 2;
Fig. 4 is the local structure for amplifying schematic diagram that seal in Fig. 2, bullet circle, bracing ring match;
Fig. 5 is the local structure for amplifying schematic diagram that in Fig. 4, seal matches with bracing ring;
The structural representation of the pipe connecting piece hermetically-sealed construction that Fig. 6 provides for second embodiment of the invention;
Fig. 7 is the local structure for amplifying schematic diagram that seal in Fig. 6, bullet circle, bracing ring match;
Fig. 8 is the local structure for amplifying schematic diagram that in Fig. 7, seal matches with bracing ring;
The structural representation of the pipe connecting piece that Fig. 9 provides for a kind of embodiment of the present invention;
Figure 10 is the blast structural representation of pipe connecting piece in Fig. 9;
The structural representation of the pipe connecting piece that Figure 11 provides for another embodiment of the present invention;
Wherein, in Fig. 1-Figure 11:
Connect main body 1 ', nut 2 ', pipe fitting 3 ', sealing ring 4 ', bracing ring 5 ', bullet circle 6 ';
Connect main body 1, nut 2, pipe fitting 3, sealing ring 4, bracing ring 5, bullet circle 6, lock nut 7, Sealing shield ring 8;
The first nut 12, the first pipe fitting 13, the first sealing ring 14, the first bracing ring 15, the first bullet circle 16;
The second nut 22, the second pipe fitting 23, the second sealing ring 24, the second bracing ring 25, the second bullet circle 26.
Embodiment
In order to make those skilled in the art better understand technical scheme of the present invention, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2, Fig. 3, the structural representation of the pipe connecting piece hermetically-sealed construction that Fig. 2 provides for first embodiment of the invention; Fig. 3 is the blast structural representation of pipe connecting piece hermetically-sealed construction in Fig. 2.
as Fig. 2, shown in Figure 3, pipe connecting piece hermetically-sealed construction provided by the invention is used for sealed pipe fittings 3, connect the junction between main body 1 and nut 2, this pipe connecting piece hermetically-sealed construction comprises the sealing ring 4 that is placed in pipe fitting 3 outsides, bracing ring 5, bullet circle 6, in concrete execution mode, described connection main body 1 is for having the tubular structure of endoporus, its at least one end is provided with external screw thread, the end of this end forms threaded port, described external screw thread is used for the internal thread engagement fit with nut 2, one end of described nut 2 has internal thread, be used for and the described external screw thread engagement that connects main body 1, the outboard end of described bullet circle 6, the outboard end of described sealing ring 4 is respectively against the threaded port of described connection main body 1, the chucking end of described nut 2, the two ends of described bracing ring 5 are curved end, and the medial extremity of described sealing ring 4 is slope, and the two ends of described bracing ring 5 compress respectively the medial extremity of described bullet circle 6, the medial extremity of described sealing ring 4.
the pipe connecting piece hermetically-sealed construction of this structure, as Fig. 4, shown in Figure 5, sealing ring 4 and contact-making surface between bracing ring 5 are slope and the contacting of arc surface, sealing ring 4 is being installed, during bracing ring 5, the arc surface of bracing ring 5 can press seal circle 4 slope, can radially carry out spacing to sealing ring 4 at pipe fitting 3, can prevent that sealing ring 4 from pipe fitting 3, dislocation or play occuring radially, thereby can avoid sealing ring 4 to snap in bullet circle 6 and the gap that connects between main body 1, make seal 4 can with bracing ring 5, pipe fitting 3 outer walls, the threaded ends port that connects main body 1 fits tightly, guarantee to have sealing effectiveness preferably, and, in seal process, the slope of the arc surface press seal circle 4 of bracing ring 5, because sealing ring 4 is compliant member, under the effect of thrust, strain occurs in sealing ring 4, while is because the end of the slope of sealing ring 4 is thinner, the slope end of sealing ring 4 can be adjacent to the arc surface of bracing ring 5, , tight pipe fitting 3 outer walls of contractive pressure inward after the supported circle of sealing ring 45 compresses, external water also can't be flowed into by the outer wall of pipe fitting 3 in pipe fitting 3, make the good sealing of formation between sealing ring 4 and bracing ring 5, increase external water and divided the difficulty that enters, improved sealing effectiveness.
The other end of described bracing ring 5 is also arc surface, and this arc surface can compress the medial extremity of described bullet circle 6.When screwing nut 2, this structure can make bracing ring 5 closely compress bullet circle 6, makes bullet circle 6 to tighten fast, and then can clamp pipe fitting 3.
when the main sealing effectiveness of the present invention is sealing ring 4 and pipe fitting 3 outer walls sealing, can make sealing ring 4 and connect formation sealing between main body 1 and bracing ring 5, make external water can't pass through pipe fitting 3 outer walls, the screw thread place that connects main body 1, pipe fitting 3 the insides, circular arc surface current place of bracing ring 5, and sealing ring 4 both sides are the inclined-plane, can form the sealing of two places, one place is sealing ring 4 and the sealing that connects between sealing between main body 1 end of thread and sealing ring 4 and pipe fitting 3 outer wall places, two places are the sealing between the sealing ring 4 of sealing between sealing ring 4 and bracing ring 5 and bracing ring 5 abutting ends and pipe fitting 3 outer wall places, so just can form the twice exclusion seal, sealing effectiveness is better.
In preferred scheme, bracing ring 5 is for supporting circle, be that the radial section of bracing ring 5 is for circular, the bracing ring 5 of this structure can adopt rigid circle, and as various metal circles, the bracing ring processing technology of this structure is simple, produce sealing effectiveness preferably with simple technique, can predict, those skilled in the art in the situation that do not pay creative work, are the sealing designs that is difficult to the creationary the application of expecting.
Further in scheme, the end face of the outboard end of the outboard end of described bullet circle 6, described sealing ring 4 is fitted with the end face of the chucking end of the described threaded port that connects main body 1 or described nut 2 respectively, as shown in Figure 2, in order to compress bullet circle 6, bracing ring 5, sealing ring 4, the threaded port of described connection main body 1 can be the inclined-plane, and the end face of the respective end of described sealing ring 4 is the inclined-plane for matching also; The inboard of the compression end of described nut 2 is also the inclined-plane, and correspondingly, the respective end of described bullet circle 6 is the inclined-plane for matching also.
In above-described embodiment, the erection sequence of pipe connecting piece hermetically-sealed construction is: sealing ring 4 compresses the threaded port that connects main body 1, bracing ring 5 press seal circles 4, and bullet circle 6 compresses bracing ring 5, and bullet circle 6 is against the chucking end of nut 2.The present invention also is not limited to this, as Fig. 6, Fig. 7, shown in Figure 8, the erection sequence of pipe connecting piece hermetically-sealed construction can also be the chucking end of sealing ring 4 clamping nuts 2, bracing ring 5 press seal circles 4, bullet circle 6 compresses bracing ring 5, and bullet circle 6 is against the threaded port that connects main body 1.Above two schemes all should be in protection scope of the present invention.
The present invention also provides a kind of pipe connecting piece, as shown in Figure 2 and Figure 3, this pipe connecting piece comprises connection main body 1, described connection main body 1 two ends all have threaded ends, a threaded ends of described connection main body 1 is connected with nut 2, pipe fitting 3 and above-mentioned sealing ring 4, bracing ring 5, bullet circle 6, shown in connect main body 1 another threaded ends lock nut 7, Sealing shield ring 8 are installed.The pipe connecting piece hermetically-sealed construction that sealing ring 4, bracing ring 5, bullet circle 6 form is the pipe connecting piece hermetically-sealed construction in above-described embodiment, because above-mentioned pipe connecting piece hermetically-sealed construction has above-mentioned technique effect, the pipe connecting piece with above-mentioned pipe connecting piece hermetically-sealed construction also should possess corresponding technique effect.
Pipe connecting piece provided by the invention is not limited to this, as Fig. 9, Figure 10, shown in Figure 11, this pipe connecting piece comprises the connection main body, described connection main body two ends all have threaded ends, a threaded ends of described connection main body is connected with the first nut 12, the first pipe fitting 13, the first sealing ring 14, the first bracing ring 15, the first bullet circle 16, shown in connect main body another threaded ends the second nut 22, the second pipe fitting 23, the second sealing ring 24, the second bracing ring 25, the second bullet circle 26 are installed.Wherein, the pipe connecting piece hermetically-sealed construction that the first sealing ring 14, the first bracing ring 15, the first bullet circle 16 form, the pipe connecting piece hermetically-sealed construction that the second sealing ring 24, the second bracing ring 25, the second bullet circle 26 form is pipe connecting piece hermetically-sealed construction in above-described embodiment.Because above-mentioned pipe connecting piece hermetically-sealed construction has above-mentioned technique effect, the pipe connecting piece with above-mentioned pipe connecting piece hermetically-sealed construction also should possess corresponding technique effect.
The above is only the description of the preferred implementation of invention; should be understood that; finiteness due to literal expression; and objectively have unlimited concrete structure; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210484884.3A CN103178474B (en) | 2012-11-26 | 2012-11-26 | A kind of pipe fitting and sealing structure thereof |
| PCT/CN2013/080474 WO2014079229A1 (en) | 2012-11-26 | 2013-07-31 | Sealing structure for pipe connectors and pipe connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210484884.3A CN103178474B (en) | 2012-11-26 | 2012-11-26 | A kind of pipe fitting and sealing structure thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103178474A true CN103178474A (en) | 2013-06-26 |
| CN103178474B CN103178474B (en) | 2016-08-17 |
Family
ID=48638163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210484884.3A Active CN103178474B (en) | 2012-11-26 | 2012-11-26 | A kind of pipe fitting and sealing structure thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103178474B (en) |
| WO (1) | WO2014079229A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362167A (en) * | 2013-07-16 | 2013-10-23 | 太原重工股份有限公司 | Device prevent front and rear buckets of hydraulic excavator bucket from misplacing |
| WO2014079229A1 (en) * | 2012-11-26 | 2014-05-30 | 宁波三灵电子有限公司 | Sealing structure for pipe connectors and pipe connector |
| CN107705910A (en) * | 2017-09-07 | 2018-02-16 | 浙江省海洋开发研究院 | If the underwater cable of testing agency |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87200335U (en) * | 1987-01-13 | 1988-02-24 | 周恒光 | Movable joint for tubes |
| US6939160B2 (en) * | 2001-06-20 | 2005-09-06 | Cooper Industries, Inc. | EMT rain-tight compression fittings |
| US7374212B1 (en) * | 2003-03-21 | 2008-05-20 | Arlington Industries, Inc. | Rain tight fitting |
| CN203056481U (en) * | 2012-11-26 | 2013-07-10 | 宁波三灵电子有限公司 | Pipe joint sealing structure and pipe joint |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5059747A (en) * | 1989-12-08 | 1991-10-22 | Thomas & Betts Corporation | Connector for use with metal clad cable |
| CN2124367U (en) * | 1992-04-01 | 1992-12-09 | 荆加福 | Gray cast-iron pipe with mechanically connecting |
| US20050194785A1 (en) * | 2003-10-03 | 2005-09-08 | Sami Shemtov | Rain tight compression fitting coupling device |
| CN201475578U (en) * | 2009-08-10 | 2010-05-19 | 天津市润实科技发展有限公司 | Connecting device of plastic pipe and metal tube |
| CN202158240U (en) * | 2011-07-18 | 2012-03-07 | 陈长岭 | Valve connecting port |
| CN103178474B (en) * | 2012-11-26 | 2016-08-17 | 宁波三灵电子有限公司 | A kind of pipe fitting and sealing structure thereof |
-
2012
- 2012-11-26 CN CN201210484884.3A patent/CN103178474B/en active Active
-
2013
- 2013-07-31 WO PCT/CN2013/080474 patent/WO2014079229A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87200335U (en) * | 1987-01-13 | 1988-02-24 | 周恒光 | Movable joint for tubes |
| US6939160B2 (en) * | 2001-06-20 | 2005-09-06 | Cooper Industries, Inc. | EMT rain-tight compression fittings |
| US7374212B1 (en) * | 2003-03-21 | 2008-05-20 | Arlington Industries, Inc. | Rain tight fitting |
| CN203056481U (en) * | 2012-11-26 | 2013-07-10 | 宁波三灵电子有限公司 | Pipe joint sealing structure and pipe joint |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014079229A1 (en) * | 2012-11-26 | 2014-05-30 | 宁波三灵电子有限公司 | Sealing structure for pipe connectors and pipe connector |
| CN103362167A (en) * | 2013-07-16 | 2013-10-23 | 太原重工股份有限公司 | Device prevent front and rear buckets of hydraulic excavator bucket from misplacing |
| CN107705910A (en) * | 2017-09-07 | 2018-02-16 | 浙江省海洋开发研究院 | If the underwater cable of testing agency |
| CN107705910B (en) * | 2017-09-07 | 2019-04-09 | 浙江省海洋开发研究院 | If the underwater cable of testing agency |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103178474B (en) | 2016-08-17 |
| WO2014079229A1 (en) | 2014-05-30 |
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