CN203325541U - Downlead shielding layer connecting device - Google Patents
Downlead shielding layer connecting device Download PDFInfo
- Publication number
- CN203325541U CN203325541U CN2013203841847U CN201320384184U CN203325541U CN 203325541 U CN203325541 U CN 203325541U CN 2013203841847 U CN2013203841847 U CN 2013203841847U CN 201320384184 U CN201320384184 U CN 201320384184U CN 203325541 U CN203325541 U CN 203325541U
- Authority
- CN
- China
- Prior art keywords
- link
- downlead
- inner chamber
- aluminium
- cylindrical shell
- 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.)
- Expired - Fee Related
Links
- 239000005030 aluminium foil Substances 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 230000004323 axial length Effects 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 238000005056 compaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
A downlead shielding layer connecting device comprises a main connecting piece. The main connecting piece is provided with an inner chamber and two ends of the main connecting piece are both provided with outside thread, wherein one end on the periphery of the inner chamber is coaxially provided with an annular neck; outer peripheral face of the inner annular wall is provided with taper; and diameter of the outer peripheral face of the inner annular wall is gradually reduced from a first coupling end to a second coupling end. The downlead shielding layer connecting device also comprises two connection nuts, wherein the cylindrical shell of a first connection nut is threadingly connected with one end of the main connecting piece; a front seal plate of the first connection nut is provided with a through hole for a metal bellows passing through; a second connection nut is threadingly connected with the other end of the main connecting piece; and a rear seal plate of the second connection nut is provided with a through hole for an aluminium plastic tube passing through. The downlead shielding layer connecting device also comprises a locking ring, the inner peripheral face of which is sleeved outside an aluminium foil layer of the aluminium plastic tube and is a compaction working face for radially compacting the aluminium foil layer. External diameter of the locking ring is less than internal diameter of the second connection nut, and axial length of the locking ring is less than the length of the cylindrical shell of the second connection nut. According to the downlead shielding layer connecting device, front and rear shielding layers are firmly and reliably connected together, thus realizing shielding during the whole course.
Description
Technical field
The utility model design is a kind of auxiliary equipment of power equipment, specifically exactly metal bellows and aluminium-plastic pipe is coupled together, and provides one in junction and protects chamber, the connection of heart yearn is played to the jockey of protection, protection against the tide and shielding action simultaneously.
Background technology
The equipment of working in the electric equipment group can constantly be subject to the interference of outer signals; therefore the connecting line between equipment need to connect with the heart yearn with screen; usually can run into the connectivity problem of connecting line in real work; method commonly used is exactly by after the heart yearn connection; outer screen is intertwined, then fixes with insulating tape.Existing scheme connects insecure, and the destruction that is easy to suffer external force, screen contact effect is installed simultaneously bad, easily produces virtual connection, and test result easily is disturbed, and can't meet long playing requirement.
The utility model content
The shortcoming existed in order to overcome above-mentioned prior art, the purpose of this utility model is to provide a kind of downlead screen jockey, the jockey between heart yearn can be put into and is protected in chamber, and front latter two screen is firmly connected, realize the overall process shielding, firm and reliable connection.
In order to address the above problem, the utility model by the following technical solutions: a kind of downlead screen jockey comprises:
Main connector, be provided with the first link of connection metal bellows, connects the second link of aluminium-plastic pipe; The first link, the second link are equipped with external screw thread; The first link arranges the first inner chamber, and the second link arranges the second inner chamber; The first inner chamber, the second inner chamber coaxial communication form a ladder through hole; Described the second link coaxially is provided with the annular slot of the aluminium foil layer for clamping aluminium-plastic pipe in the periphery of the second inner chamber, between annular slot and the second inner chamber, it is internal ring wall, the outer peripheral face of described internal ring wall is provided with tapering, and the diameter of internal ring wall outer peripheral face is along by the first link, the direction to the second link reduces gradually;
First connects screw, cylindrical shell and the front shrouding that is installed in barrel front end, consists of; Cylindrical shell arranges internal thread and coordinates with the external screw thread of the first link of described main connector, and front shrouding is provided with the through hole passed for described metal bellows;
Second connects screw, cylindrical shell and the rear shrouding that is installed in cylinder back-end, consists of; Cylindrical shell is provided with internal thread and coordinates with the external screw thread of the second link of described main connector, and rear shrouding is provided with the through hole passed for described aluminium-plastic pipe;
Binding ring, inner peripheral surface be enclosed within the aluminium foil layer of described aluminium-plastic pipe outer and by described aluminium foil layer the compression working face with described internal ring wall compression; The external diameter of binding ring is less than the internal diameter of the second connection screw, and the axial length of binding ring is less than the cylindrical shell length of the second connection screw.
As further technical scheme: in this downlead screen jockey, on the outer surface of main connector, between the first link, the second linkage section, be provided with the connection boss.
Further: in this downlead screen jockey, described connection boss is prism-shaped.
The beneficial effects of the utility model are: it can be put into the jockey between heart yearn to protect in chamber, and front latter two screen is firmly connected, and realizes the overall process shielding, firm and reliable connection.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further:
The structural representation that Fig. 1 is the utility model embodiment;
In figure: 1 main connector, 11 first links, 12 second links, 13 first inner chambers, 14 second inner chambers, 15 annular slots, 16 internal ring walls, 17 connect boss, 2 first connect screw, 21 cylindrical shells, 22 front shroudings, 23 through holes, 3 second connect screw, 31 cylindrical shells, 32 rear shroudings, 33 through holes, 4 binding rings, 5 metal bellowss, 6 aluminium-plastic pipes, 61 inner coverings, 62 aluminium foil layers, 63 metal charge layers, 64 outer jackets, 7 sealing gaskets.
Embodiment
As shown in Figure 1, this downlead screen jockey mainly comprises that main connector 1, first connects screw 2, second and connects screw 3, binding ring 4.
Main connector 1, be provided with the first link 11 of connection metal bellows 5, connects the second link 12 of aluminium-plastic pipe 6.The first link 11, the second link 12 are equipped with external screw thread.The first link 11 arranges the first inner chamber 13, the second links 12 the second inner chamber 14 is set; The first inner chamber 13, the second inner chamber 14 coaxial communication form a ladder through hole.Described the second link 12 coaxially is provided with the annular slot 15 of the aluminium foil layer 61 for clamping aluminium-plastic pipe 6 in the periphery of the second inner chamber 14, between annular slot 15 and the second inner chamber 14, it is internal ring wall 16, the outer peripheral face of described internal ring wall 16 is provided with tapering, and the diameter of internal ring wall 16 outer peripheral faces is along by the first link 11, the direction to the second link 12 reduces gradually.
First connects screw 2, cylindrical shell 21 and the front shrouding 22 that is installed in cylindrical shell 21 front ends, consists of; Cylindrical shell 21 arranges internal thread and coordinates with the external screw thread of the first link 11 of described main connector, and front shrouding 22 is provided with the through hole 23 passed for described metal bellows 5.
Second connects screw 3, cylindrical shell 31 and the rear shrouding 32 that is installed in cylindrical shell 31 rear ends, consists of; Cylindrical shell 31 is provided with internal thread and coordinates with the external screw thread of the second link 12 of described main connector, and rear shrouding 32 is provided with the through hole 33 passed for described aluminium-plastic pipe 6;
Binding ring 4, inner peripheral surface be enclosed within the aluminium foil layer of described aluminium-plastic pipe outer and by described aluminium foil layer the compression working face with described internal ring wall compression; The external diameter of binding ring 4 is less than the internal diameter of the second connection screw 3, and the axial length of binding ring 4 is less than cylindrical shell 31 length of the second connection screw.
During use, an end of metal bellows 5 is arranged to convex platform, first snap in the first connection screw 2, can be connected with first at the boss of metal bellows 5 between the front shrouding 22 of screw 2 sealing gasket 7 is set.Then the first connection screw 2 is arranged on to the first link 11 of main connector 1, sealing gasket 7 can guarantee that metal bellows 5 is connected between screw 2 with first, the first sealing property connected between screw 2 and main connector 1.Thereby guarantee the shield effectiveness of screen.
The known aluminium-plastic pipe as shielded-plate tube comprises inner covering 61, aluminium foil layer 62, metal charge layer 63, outer jacket 64.The aluminium foil layer of aluminium-plastic pipe 6 62 is exposed separately, aluminium foil layer 62 inserts in annular slot 15, and then at the outer suit binding ring 4 of aluminium foil layer 62, again the second connection screw 3 is screwed on the second link 12 of main connector, and further rotate the second connection screw 3, make 32 pairs of binding rings 4 of rear shrouding of the second connection screw apply thrust forward, binding ring 4 moves forward, because the taper design of internal ring wall 16 causes binding ring 4 more forward, the radial compression power of 4 pairs of aluminium foil layers 62 of binding ring is larger, be that aluminium foil layer 62 is connected on internal ring wall 16 by reliable fastening extruding, realize that main connector 1 is connected with the reliable of aluminium foil layer 62.Thereby metal bellows 5, aluminium-plastic pipe 6 as lower lead-in wire screen are coupled together reliably, realize the overall process shielding.And in main connector 1, the first inner chamber 13, the second inner chamber 14 are communicated with the shoulder hole that forms as a Global Macros chamber, lead link structure can be arranged in this Global Macros chamber, protection lead-in wire bindiny mechanism is not damaged.
As further technical scheme: in this downlead screen jockey, be provided with between the first link 11, the second linkage section 12 on the outer surface of main connector 1 and connect boss 17.
Further: described connection boss 17 is prism-shaped, twisting the first connection screw, the second connection screw, especially second while connecting screw, can clamp the connection boss with spanner or pliers, handled easily, and guarantee the degree of the second connection screw precession to guarantee the distance that binding ring moves forward, the degree that to be also binding ring compress aluminium foil layer, thus the reliability be connected between the internal ring wall of aluminium foil layer and main connector guaranteed.Also guarantee the shield effectiveness of screen.
The relative position that above-mentioned 'fornt', 'back', " left side ", " right side " all adopt for convenience of description, and do not represent absolute position.
Claims (3)
1. a downlead screen jockey, is characterized in that, comprising:
Main connector, be provided with the first link of connection metal bellows, connects the second link of aluminium-plastic pipe; The first link, the second link are equipped with external screw thread; The first link arranges the first inner chamber, and the second link arranges the second inner chamber; The first inner chamber, the second inner chamber coaxial communication form a ladder through hole; Described the second link coaxially is provided with the annular slot of the aluminium foil layer for clamping aluminium-plastic pipe in the periphery of the second inner chamber, between annular slot and the second inner chamber, it is internal ring wall, the outer peripheral face of described internal ring wall is provided with tapering, and the diameter of internal ring wall outer peripheral face is along by the first link, the direction to the second link reduces gradually;
First connects screw, cylindrical shell and the front shrouding that is installed in barrel front end, consists of; Cylindrical shell arranges internal thread and coordinates with the external screw thread of the first link of described main connector, and front shrouding is provided with the through hole passed for described metal bellows;
Second connects screw, cylindrical shell and the rear shrouding that is installed in cylinder back-end, consists of; Cylindrical shell is provided with internal thread and coordinates with the external screw thread of the second link of described main connector, and rear shrouding is provided with the through hole passed for described aluminium-plastic pipe;
Binding ring, inner peripheral surface be enclosed within the aluminium foil layer of described aluminium-plastic pipe outer and by described aluminium foil layer the compression working face with described internal ring wall compression; The external diameter of binding ring is less than the internal diameter of the second connection screw, and the axial length of binding ring is less than the cylindrical shell length of the second connection screw.
2. a kind of downlead screen jockey according to claim 1, is characterized in that: on the outer surface of main connector, between the first link, the second linkage section, be provided with the connection boss.
3. a kind of downlead screen jockey according to claim 2, it is characterized in that: described connection boss is prism-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203841847U CN203325541U (en) | 2013-06-28 | 2013-06-28 | Downlead shielding layer connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203841847U CN203325541U (en) | 2013-06-28 | 2013-06-28 | Downlead shielding layer connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203325541U true CN203325541U (en) | 2013-12-04 |
Family
ID=49664856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203841847U Expired - Fee Related CN203325541U (en) | 2013-06-28 | 2013-06-28 | Downlead shielding layer connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203325541U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337291A (en) * | 2013-06-28 | 2013-10-02 | 国家电网公司 | Down lead screening layer connection device |
| CN107112648A (en) * | 2014-12-22 | 2017-08-29 | Wago管理有限责任公司 | Connection terminal and the method for installing connection terminal |
-
2013
- 2013-06-28 CN CN2013203841847U patent/CN203325541U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337291A (en) * | 2013-06-28 | 2013-10-02 | 国家电网公司 | Down lead screening layer connection device |
| CN107112648A (en) * | 2014-12-22 | 2017-08-29 | Wago管理有限责任公司 | Connection terminal and the method for installing connection terminal |
| CN107112648B (en) * | 2014-12-22 | 2019-06-11 | Wago管理有限责任公司 | Connection terminal and method for installing connection terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20160628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |