CN108397626A - A kind of vacuum line connector - Google Patents
A kind of vacuum line connector Download PDFInfo
- Publication number
- CN108397626A CN108397626A CN201810309146.2A CN201810309146A CN108397626A CN 108397626 A CN108397626 A CN 108397626A CN 201810309146 A CN201810309146 A CN 201810309146A CN 108397626 A CN108397626 A CN 108397626A
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- Prior art keywords
- male connector
- female
- face
- male
- vacuum
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Classifications
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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
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The present invention relates to a kind of vacuum line connectors, belong to field of mechanical technique.The technical solution adopted in the present invention is：A kind of vacuum line connector, it is characterised in that：The pipe joint is made of male connector and female, the male connector or female is provided at least one or more than one magnetic attracting part or male connector and female is both provided at least one or more than one magnetic attracting part；The male connector or female are provided with the sealing rubber ring of plain cushion loop-shaped；When pipe joint is connected, magnetic attracting part end face and female internal end surface are attracted, and the male end surface is contacted with sealing rubber ring end face, the distance of magnetic attracting part end face to female internal end surface more than male end surface to sealing rubber ring end face at least 1mm, or more；The male connector other end and the female other end have been respectively fixedly connected with vacuum tube；With the raising male end surface slow indentation sealing cushion rubber end face of vacuum degree when vacuum pump work, the end surface shape is made to change and reach vacuum state.
Description
Technical field
The present invention relates to a kind of connectors of vacuum line, belong to field of mechanical technique.
Background technology
Vacuum line system as enterprise's producing equipment or the engineering goods containing vacuum line system, duct portion
Divide is typically metal tube threaded connection or welding and quick coupling connection；
As producing equipment, metal tube be threadedly coupled or welding that there are labor intensity is big, be not easy design for change after completion
Transformation；As engineering goods vacuum line system, using welding and quick coupling connection, there is also produce time-consuming and quick coupling
Complicated expensive problem；
One kind can be designed thus and can be applied to enterprise's producing equipment, and can be applied to specific engineering goods, it can
Fast construction vacuum line system is also easy to remove the vacuum line system of transformation, design for change and maintenance, specifically can
It is very great to provide a kind of rapid connector meaning for building vacuum line system；
Prior art vacuum line connector, in addition to being threadedly coupled, the cooperation of connection is generally transition cooperation or interference is matched
It closes, separately has the connection type for the complex precise that clearance fit combined with spring hoodle, the former installation operation is time-consuming and laborious, Hou Zhejie
Structure complexity is expensive.
Invention content
For overcome the deficiencies in the prior art, the technical solution adopted in the present invention is：One is designed for vacuum line system
Kind male and female (convex-concave) is to slotting vacuum line connector, which can apply in terms of producing equipment or engineering goods, by magnetism
Material/magnetic attracting part is attracted links together, and can be when pipeline vacuum state is removed, can be tool-free convenient
Separation, transformation and maintenance, the magnetic attracting part is at least one or more than one is formed, wherein three, four and composition described above
Relatively reasonable reliable (point type magnetic attracting part), magnetic attracting part can be arranged in male connector, can also be arranged in female, when
Right male connector and female are respectively provided with also possible (male connector and female be correspondingly arranged/one-to-one setting, repeat no more below)；It can be with
Several magnetic attracting parts are designed to a cricoid shape (ring-shaped magnetic actuation part), remaining is same as above；Male connector and female are
Solid material manufactures, and the male connector or female are provided with elastic packing cushion rubber, the metal material of lightweight/soft (such as copper, zinc,
Aluminium, lead and its alloy etc.) it can also reach corresponding air-tightness requirement after polishing processing, magnetic attracting part is fixedly installed in public affairs
Head or female are attracted other side, realize that the reliable requirement for being attracted and reaching air-tightness simultaneously again, the way of one of them are：The magnetic
Property be attracted part end face to female internal end surface (working face being attracted) distance be more than male end surface to sealing rubber ring end face extremely
Few 1mm, or more；The tail portion of the male connector and female is by hose (not shown) by each section of (not shown) of vacuum line system
It connects；With the raising male end surface slow indentation sealing cushion rubber end face of vacuum degree when vacuum pump work, make the end face shape
Shape changes, and is rapidly reached vacuum state；
Matching between the male connector outer diameter and female internal diameter is combined into clearance fit (loose fit), the male connector outer diameter and mother
The manufacturer's standard tolerance numerical value of head internal diameter is IT4~IT18 or is more than it, i.e.,：Standard of tolerance numerical value is within IT4~IT18, greatly
It (can also similarly hereinafter, be repeated no more) in the numberical range of IT4~IT18；
Above-mentioned sealing rubber ring is using the technical solution of similar plain cushion loop-shaped, and the shape of another sealing rubber ring is hollow
The sealing rubber ring of taper, the head of the male connector contacted also have same taper, remaining structure and principle with it is aforementioned
It is identical；
It advanced optimizes：The male end surface or sealing ring end face are additionally provided with annular seal muscle, and：The male connector conical surface or
The sealing ring conical surface is additionally provided with annular seal muscle, and the setting of annular seal muscle ensure that vacuum line system, the acquisition being more prone to
The requirement of required vacuum degree；
It advanced optimizes：The manufacturing tolerance of the male connector outer diameter and female internal diameter is IT7~IT18 or is more than it；
It advanced optimizes：The material of the magnetic attracting part is ndfeb magnet；
A kind of vacuum line connector, it is characterised in that：
First technical solution：The pipe joint is made of male connector 1 and female 2, and the male connector or female are provided at least
One or more magnetic attracting parts 3 or male connector and female are both provided at least one or more than one magnetic attracting part；Institute
It states male connector or female is provided with the sealing rubber ring 4 of plain cushion loop-shaped；When pipe joint is connected, magnetic attracting part end face 5 and female
Internal end surface 6 is attracted, and the male end surface 7 is contacted with sealing rubber ring end face 8, magnetic attracting part end face to female inside end
The distance in face is more than male end surface to sealing rubber ring end face at least 1mm, or more；The male connector other end 9 and the female are another
One end 10 has been respectively fixedly connected with vacuum tube (not shown) by hose (not shown)；With true when vacuum pump (not shown) works
The raising male end surface slow indentation sealing cushion rubber end face of reciprocal of duty cycle makes the end surface shape change and reach vacuum state；
Matching between the male connector outer diameter 14 and female internal diameter 15 is combined into clearance fit, the male connector outer diameter and female internal diameter
Manufacturing tolerance be IT4~IT18 or be more than its；
A kind of vacuum line connector, it is characterised in that：
Second technical solution：The pipe joint is made of male connector 1 and female 2, and the male connector or female are provided at least
One or more magnetic attracting parts 3 or male connector and female are both provided at least one or more than one magnetic attracting part；Institute
It states male connector or female is provided with the sealing rubber ring of plain cushion loop-shaped, which is replaced by cone seal cushion rubber 4；Pipe joint
When connection, magnetic attracting part end face 5 is attracted with male connector periphery 11, and the male connector conical surface 12 is contacted with the sealing rubber ring conical surface 13；
The male connector other end 9 and the female other end 10 have been respectively fixedly connected with vacuum tube by hose (not shown) and (have not shown
Go out)；With the slow indentation sealing cushion rubber conical surface of the raising male connector conical surface of vacuum degree when vacuum pump (not shown) works, make the conical surface
Shape changes and reaches vacuum state；
Matching between the male connector outer diameter 14 and female internal diameter 15 is combined into clearance fit, the male connector outer diameter and female internal diameter
Manufacturing tolerance be IT4~IT18 or be more than its；
It advanced optimizes：The male end surface or sealing ring end face are additionally provided with annular seal muscle 16, and：The male connector conical surface
Or the sealing ring conical surface is additionally provided with annular seal muscle；
It advanced optimizes：The manufacturing tolerance of the male connector outer diameter and female internal diameter is IT9~IT18 or is more than it；
It advanced optimizes：The material of the magnetic attracting part is ndfeb magnet；
It advanced optimizes：The male connector conical surface is arcwall face 17.
The beneficial effects of the invention are as follows：
It is simple and reliable, of low cost, change the outfit rapid, tool-free operation.
Description of the drawings
Fig. 1 is：One, three, five, seven front view of embodiment；
Fig. 2 is：Embodiment one, three, five, heptalateral view；
Fig. 3 is：Two, four, six, eight front view of embodiment；
Fig. 4 is：Two, four, six, eight side view of embodiment；
Fig. 5 is：Three side view of embodiment；
Fig. 6 is：Three sealing rubber ring perspective view of embodiment；
Fig. 7 is：Example IV male connector side view；
Fig. 8 is：Nine male connector side view of embodiment；
In figure：1：Male connector；2：Female；3：Magnetic attracting part；4：Sealing rubber ring；5：Magnetic attracting part end face；6：In female
End surface；7：Male end surface；8：Sealing rubber ring end face；9：The male connector other end；10：The female other end；11：Male connector periphery；12：
The male connector conical surface；13：The sealing rubber ring conical surface；14：Male connector outer diameter；15：Female internal diameter；16：Annular seal muscle；17：Arcwall face.
Specific implementation mode
Present invention is further described in detail in the following with reference to the drawings and specific embodiments, it should be understood that can not be to all realities
It applies example to enumerate one by one, protection domain is subject to claims, includes but not limited to that mode is implemented as follows.
Embodiment one：
As shown in Fig. 1~Fig. 2：
A kind of vacuum line connector, it is characterised in that：
The pipe joint is made of male connector 1 and female 2, and there are four magnetic attracting parts 3 for the male connector setting；The female
It is provided with the sealing rubber ring 4 of plain cushion loop-shaped；When pipe joint is connected, magnetic attracting part end face 5 is inhaled with female internal end surface 6
It closes, the male end surface 7 is contacted with sealing rubber ring end face 8, and the distance of magnetic attracting part end face to female internal end surface is big
In male end surface to sealing rubber ring end face 1.8mm；The male connector other end 9 and the female other end 10 (are not shown by hose
Go out) it has been respectively fixedly connected with vacuum tube (not shown)；With the raising male end surface of vacuum degree when vacuum pump (not shown) works
Slow indentation sealing cushion rubber end face, makes the end surface shape change and reach vacuum state；
Matching between the male connector outer diameter 14 and female internal diameter 15 is combined into clearance fit, the male connector outer diameter and female internal diameter
Manufacturing tolerance be IT4.
Embodiment two：
As shown in Fig. 3~Fig. 4：
A kind of vacuum line connector, it is characterised in that：
The pipe joint is made of male connector 1 and female 2, and there are one magnetic attracting parts 3 for the female setting；The male connector
Or female is provided with the sealing rubber ring of plain cushion loop-shaped, which is replaced by cone seal cushion rubber 4；Pipe joint is connected
When, magnetic attracting part end face 5 is attracted with male connector periphery 11, and the male connector conical surface 12 is contacted with the sealing rubber ring conical surface 13；It is described
The male connector other end 9 and the female other end 10 have been respectively fixedly connected with vacuum tube (not shown) by hose (not shown)；Very
With the slow indentation sealing cushion rubber conical surface of the raising male connector conical surface of vacuum degree when sky pump (not shown) work, the conical surface shape is made to change
Become and reaches vacuum state；
Matching between the male connector outer diameter 14 and female internal diameter 15 is combined into clearance fit, the male connector outer diameter and female internal diameter
Manufacturing tolerance be IT5.
Embodiment three：
Such as Fig. 1~Fig. 2, shown in Fig. 5~Fig. 6：
A kind of vacuum line connector, it is characterised in that：
The pipe joint is made of male connector 1 and female 2, and there are four magnetic attracting parts 3 for the male connector setting；The female
It is provided with the sealing rubber ring 4 of plain cushion loop-shaped；When pipe joint is connected, magnetic attracting part end face 5 is inhaled with female internal end surface 6
It closes, the male end surface 7 is contacted with sealing rubber ring end face 8, and the distance of magnetic attracting part end face to female internal end surface is big
In male end surface to sealing rubber ring end face 1.8mm；The male connector other end 9 and the female other end 10 (are not shown by hose
Go out) it has been respectively fixedly connected with vacuum tube (not shown)；With the raising male end surface of vacuum degree when vacuum pump (not shown) works
Slow indentation sealing cushion rubber end face, makes the end surface shape change and reach vacuum state；
Matching between the male connector outer diameter 14 and female internal diameter 15 is combined into clearance fit, the male connector outer diameter and female internal diameter
Manufacturing tolerance be IT6；
The sealing ring end face is additionally provided with annular seal muscle 16.
Example IV：
As shown in Fig. 3~Fig. 4, Fig. 7：
A kind of vacuum line connector, it is characterised in that：
The pipe joint is made of male connector 1 and female 2, and there are one magnetic attracting parts 3 for the female setting；The male connector
Or female is provided with the sealing rubber ring of plain cushion loop-shaped, which is replaced by cone seal cushion rubber 4；Pipe joint is connected
When, magnetic attracting part end face 5 is attracted with male connector periphery 11, and the male connector conical surface 12 is contacted with the sealing rubber ring conical surface 13；It is described
The male connector other end 9 and the female other end 10 have been respectively fixedly connected with vacuum tube (not shown) by hose (not shown)；Very
With the slow indentation sealing cushion rubber conical surface of the raising male connector conical surface of vacuum degree when sky pump (not shown) work, the conical surface shape is made to change
Become and reaches vacuum state；
Matching between the male connector outer diameter 14 and female internal diameter 15 is combined into clearance fit, the male connector outer diameter and female internal diameter
Manufacturing tolerance be IT7；
The male connector conical surface is additionally provided with annular seal muscle 16.
Embodiment five：
As shown in Fig. 1~Fig. 2：
A kind of vacuum line connector, it is characterised in that：
The pipe joint is made of male connector 1 and female 2, and there are four magnetic attracting parts 3 for the male connector setting；The female
It is provided with the sealing rubber ring 4 of plain cushion loop-shaped；When pipe joint is connected, magnetic attracting part end face 5 is inhaled with female internal end surface 6
It closes, the male end surface 7 is contacted with sealing rubber ring end face 8, and the distance of magnetic attracting part end face to female internal end surface is big
In male end surface to sealing rubber ring end face 1.8mm；The male connector other end 9 and the female other end 10 (are not shown by hose
Go out) it has been respectively fixedly connected with vacuum tube (not shown)；With the raising male end surface of vacuum degree when vacuum pump (not shown) works
Slow indentation sealing cushion rubber end face, makes the end surface shape change and reach vacuum state；
Matching between the male connector outer diameter 14 and female internal diameter 15 is combined into clearance fit, the male connector outer diameter and female internal diameter
Manufacturing tolerance be IT4~IT18；
The manufacturing tolerance of the male connector outer diameter and female internal diameter is IT8.
Embodiment six：
As shown in Fig. 3~Fig. 4：
A kind of vacuum line connector, it is characterised in that：
The pipe joint is made of male connector 1 and female 2, and there are one magnetic attracting parts 3 for the female setting；The male connector
Or female is provided with the sealing rubber ring of plain cushion loop-shaped, which is replaced by cone seal cushion rubber 4；Pipe joint is connected
When, magnetic attracting part end face 5 is attracted with male connector periphery 11, and the male connector conical surface 12 is contacted with the sealing rubber ring conical surface 13；It is described
The male connector other end 9 and the female other end 10 have been respectively fixedly connected with vacuum tube (not shown) by hose (not shown)；Very
With the slow indentation sealing cushion rubber conical surface of the raising male connector conical surface of vacuum degree when sky pump (not shown) work, the conical surface shape is made to change
Become and reaches vacuum state；
Matching between the male connector outer diameter 14 and female internal diameter 15 is combined into clearance fit, the male connector outer diameter and female internal diameter
Manufacturing tolerance be IT4~IT18；
The manufacturing tolerance of the male connector outer diameter and female internal diameter is IT9.
Embodiment seven：
As shown in Fig. 1~Fig. 2：
A kind of vacuum line connector, it is characterised in that：
The pipe joint is made of male connector 1 and female 2, and there are four magnetic attracting parts 3 for the male connector setting；The female
It is provided with the sealing rubber ring 4 of plain cushion loop-shaped；When pipe joint is connected, magnetic attracting part end face 5 is inhaled with female internal end surface 6
It closes, the male end surface 7 is contacted with sealing rubber ring end face 8, and the distance of magnetic attracting part end face to female internal end surface is big
In male end surface to sealing rubber ring end face 1.8mm；The male connector other end 9 and the female other end 10 (are not shown by hose
Go out) it has been respectively fixedly connected with vacuum tube (not shown)；With the raising male end surface of vacuum degree when vacuum pump (not shown) works
Slow indentation sealing cushion rubber end face, makes the end surface shape change and reach vacuum state；
Matching between the male connector outer diameter 14 and female internal diameter 15 is combined into clearance fit, the male connector outer diameter and female internal diameter
Manufacturing tolerance be IT10；
The material of the magnetic attracting part is ndfeb magnet.
Embodiment eight：
As shown in Fig. 3~Fig. 4：
A kind of vacuum line connector, it is characterised in that：
The pipe joint is made of male connector 1 and female 2, and there are one magnetic attracting parts 3 for the female setting；The male connector
Or female is provided with the sealing rubber ring of plain cushion loop-shaped, which is replaced by cone seal cushion rubber 4；Pipe joint is connected
When, magnetic attracting part end face 5 is attracted with male connector periphery 11, and the male connector conical surface 12 is contacted with the sealing rubber ring conical surface 13；It is described
The male connector other end 9 and the female other end 10 have been respectively fixedly connected with vacuum tube (not shown) by hose (not shown)；Very
With the slow indentation sealing cushion rubber conical surface of the raising male connector conical surface of vacuum degree when sky pump (not shown) work, the conical surface shape is made to change
Become and reaches vacuum state；
Matching between the male connector outer diameter 14 and female internal diameter 15 is combined into clearance fit, the male connector outer diameter and female internal diameter
Manufacturing tolerance be IT11；
The material of the magnetic attracting part is ndfeb magnet.
Embodiment nine：
As shown in Fig. 3~Fig. 4, Fig. 8：
A kind of vacuum line connector, it is characterised in that：
The pipe joint is made of male connector 1 and female 2, and there are one magnetic attracting parts 3 for the female setting；The male connector
Or female is provided with the sealing rubber ring of plain cushion loop-shaped, which is replaced by cone seal cushion rubber 4；Pipe joint is connected
When, magnetic attracting part end face 5 is attracted with male connector periphery 11, and the male connector conical surface 12 is contacted with the sealing rubber ring conical surface 13；It is described
The male connector other end 9 and the female other end 10 have been respectively fixedly connected with vacuum tube (not shown) by hose (not shown)；Very
With the slow indentation sealing cushion rubber conical surface of the raising male connector conical surface of vacuum degree when sky pump (not shown) work, the conical surface shape is made to change
Become and reaches vacuum state；
Matching between the male connector outer diameter 14 and female internal diameter 15 is combined into clearance fit, the male connector outer diameter and female internal diameter
Manufacturing tolerance be more than IT4~IT18 numberical range；
The male connector conical surface is arcwall face 17.
Claims (6)
1. a kind of vacuum line connector, it is characterised in that：
The pipe joint is made of male connector (1) and female (2), the male connector or female be provided with it is at least one or more than one
Magnetic attracting part (3) or male connector and female are both provided at least one or more than one magnetic attracting part；The male connector or female
It is provided with the sealing rubber ring (4) of plain cushion loop-shaped；When pipe joint is connected, magnetic attracting part end face (5) and female internal end surface
(6) it is attracted, the male end surface (7) contacts with sealing rubber ring end face (8), magnetic attracting part end face to female internal end surface
Distance be more than male end surface to sealing rubber ring end face at least 1mm, or more；The male connector other end (9) and the female are another
One end (10) has been respectively fixedly connected with vacuum tube；With the slow indentation sealing of raising male end surface of vacuum degree when vacuum pump work
Cushion rubber end face makes the end surface shape change and reach vacuum state；
Matching between the male connector outer diameter (14) and female internal diameter (15) is combined into clearance fit, the male connector outer diameter and female internal diameter
Manufacturing tolerance be IT4~IT18 or be more than its.
2. according to claim 1, vacuum line connector, it is characterised in that：
The pipe joint is made of male connector (1) and female (2), the male connector or female be provided with it is at least one or more than one
Magnetic attracting part (3) or male connector and female are both provided at least one or more than one magnetic attracting part；The male connector or female
It is provided with the sealing rubber ring of plain cushion loop-shaped, which is replaced by cone seal cushion rubber (4)；When pipe joint is connected, magnetic
Property be attracted part end face (5) and male connector periphery (11) and be attracted, the male connector conical surface (12) contacts with the sealing rubber ring conical surface (13)；Institute
It states the male connector other end (9) and the female other end (10) has been respectively fixedly connected with vacuum tube；With vacuum when vacuum pump work
The slow indentation sealing cushion rubber conical surface of the raising male connector conical surface of degree makes the conical surface shape change and reach vacuum state；
Matching between the male connector outer diameter (14) and female internal diameter (15) is combined into clearance fit, the male connector outer diameter and female internal diameter
Manufacturing tolerance be IT4~IT18 or be more than its.
3. according to claim 1 or 2, vacuum line connector, it is characterised in that：
The male end surface or sealing ring end face are additionally provided with annular seal muscle (16), and：The male connector conical surface or the sealing ring conical surface are also
Equipped with annular seal muscle.
4. according to claim 1 or 2, vacuum line connector, it is characterised in that：
The manufacturing tolerance of the male connector outer diameter and female internal diameter is IT9~IT18 or is more than it.
5. according to claim 1 or 2, vacuum line connector, it is characterised in that：
The material of the magnetic attracting part is ndfeb magnet.
6. being selected described in one item according to claim 3,4,5, vacuum line connector, it is characterised in that：The male connector conical surface is
Arcwall face (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810309146.2A CN108397626A (en) | 2018-04-09 | 2018-04-09 | A kind of vacuum line connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810309146.2A CN108397626A (en) | 2018-04-09 | 2018-04-09 | A kind of vacuum line connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108397626A true CN108397626A (en) | 2018-08-14 |
Family
ID=63099154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810309146.2A Pending CN108397626A (en) | 2018-04-09 | 2018-04-09 | A kind of vacuum line connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108397626A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2185365Y (en) * | 1993-05-29 | 1994-12-14 | 国营第八九九厂 | Multipolar permanent magnet joint of fire-fighting hose |
| US20110084474A1 (en) * | 2008-06-25 | 2011-04-14 | Paden David B | High retention magnetic coupling device for conduit attachment |
| CN102667291A (en) * | 2009-10-16 | 2012-09-12 | 蒲利美集团 | Connector system for exhaust extraction system |
| CN204358292U (en) * | 2014-12-26 | 2015-05-27 | 厦门艾淇尔科技有限公司 | A kind of conduit pipeline jointing |
| CN204459575U (en) * | 2014-12-26 | 2015-07-08 | 海盐管件制造有限公司 | Triplate line magnetic cleaning pipe joint |
-
2018
- 2018-04-09 CN CN201810309146.2A patent/CN108397626A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2185365Y (en) * | 1993-05-29 | 1994-12-14 | 国营第八九九厂 | Multipolar permanent magnet joint of fire-fighting hose |
| US20110084474A1 (en) * | 2008-06-25 | 2011-04-14 | Paden David B | High retention magnetic coupling device for conduit attachment |
| CN102667291A (en) * | 2009-10-16 | 2012-09-12 | 蒲利美集团 | Connector system for exhaust extraction system |
| CN204358292U (en) * | 2014-12-26 | 2015-05-27 | 厦门艾淇尔科技有限公司 | A kind of conduit pipeline jointing |
| CN204459575U (en) * | 2014-12-26 | 2015-07-08 | 海盐管件制造有限公司 | Triplate line magnetic cleaning pipe joint |
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| PB01 | Publication | ||
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Application publication date: 20180814 |
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