CN106992478A - Material-saving is along elbow and the suitable logical threading apparatus of threading a pipe - Google Patents
Material-saving is along elbow and the suitable logical threading apparatus of threading a pipe Download PDFInfo
- Publication number
- CN106992478A CN106992478A CN201610101228.9A CN201610101228A CN106992478A CN 106992478 A CN106992478 A CN 106992478A CN 201610101228 A CN201610101228 A CN 201610101228A CN 106992478 A CN106992478 A CN 106992478A
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- CN
- China
- Prior art keywords
- built
- interface
- threading
- line tube
- pipe
- 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.)
- Pending
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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
-
- 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
- F16L43/00—Bends; Siphons
-
- 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
Abstract
The present invention discloses a kind of material-saving along elbow of threading a pipe, a kind of scheme includes the spool interface at 90 ° of bend pipe two ends, spool interface is respectively external spool interface and built-in line tube interface, external spool interface is located at one end of bend pipe, the other end mouth of pipe of bend pipe is set to straight tube and as built-in line tube interface, the bottom position of built-in line tube interface is no more than the axis of external spool interface；Another scheme includes the spool interface at 90 ° of bend pipe two ends, and spool interface is built-in line tube interface, and the bottom position of one end built-in line tube interface is no more than the axis of other end built-in line tube interface；Corresponding to the minimum curved width position of bend pipe, the spool termination inserted in two schemes is designed with avoiding the structure of cable.The present invention includes threading head and threading steel wire along logical threading apparatus, and the front portion of threading head offers threading hole, the front-end and back-end semicircular in shape shape of threading head.The present invention can be worn cable back and forth by threading apparatus and be stopped without being formed, easy to use, and operating efficiency is high.
Description
Present patent application be claim priority application (earlier application number for invention 201610038893.8, utility model
201620056760.9)。
Technical field
The present invention relates to place line construction equipment, specially a kind of material-saving is along elbow and the suitable logical threading apparatus of threading a pipe.
Background technology
It is difficult to threading to solve 90 ° of union elbows in industry and Civil Electric Work and the construction of automated system wiring work
The problem of, Authorization Notice No. proposes one kind for CN204258200U utility model patent《Channel bend》, its technical scheme
As shown in figure 1, the spool interface including 90 ° of bend pipe 1 and the two ends of bend pipe 1, the spool interface is respectively external spool interface 2
With built-in line tube interface 3, the external spool interface 2 is in coaxially connected outside one end mouth of pipe of bend pipe 1, and the other end of bend pipe 1 is set
It is set to straight tube and turns into built-in line tube interface 3；In said structure, by by the spool interface retraction bend pipe of one end, so as to shorten
Threading path of the wire between bend pipe 1 and spool interface and become smooth.
But it is not so, particularly to bury threading in use, but occurring not for wall or ground in practice
Foot：After the insertion built-in line tube of built-in line tube 5 interface 3, the wall thickness of built-in line tube 5 forms step on the inwall of bend pipe 1, hinders threading
Device 8 (long and sharp) is from external the walking to built-in line tube interface 3 of spool interface 2, and serious conditions underpass device 8 can be captured between curved
It can not be passed in pipe 1.
The content of the invention
The deficiency existed for existing channel bend, the technical problems to be solved by the invention are to provide a kind of two-way threading
Straightway material-saving is along stylet elbow and along logical threading apparatus.
The suitable elbow of threading a pipe of material-saving of above-mentioned purpose can be realized, one of its technical scheme includes 90 ° such as bend pipe two ends
Spool interface, the spool interface is respectively external spool interface and built-in line tube interface, and the external spool interface is in bend pipe
One end mouth of pipe outside it is coaxially connected, the other end mouth of pipe of bend pipe be set to straight tube and as built-in line tube interface, the built-in line
The bottom position of interface tube is no more than the axis of external spool interface, except that the bore of the external spool interface is more than
Corresponding bend pipe nozzle diameter, forms the external spacing seam of external spool insertion, the external spacing seam between the two
Width be more than external spool wall thickness；The bottom position institute that the bore of the built-in line tube interface is more than built-in line tube interface is right
The bend pipe bore answered, forms the built-in spacing seam of built-in line tube insertion between the two, and the width of the built-in spacing seam is big
In the wall thickness of built-in line tube；The termination of the built-in line tube is routinely flush end, or the termination of the built-in line tube is designed as side
High and opposite side is low, low side correspondence is in the minimum curved width position of bend pipe, it is to avoid built-in line tube is to the corresponding pipe of external spool interface
Mouth, which is formed, to be stopped, or corresponding to the minimum curved width position of bend pipe, the butt end of the built-in line tube, which is offered, makes cable smooth logical
The notch crossed.
For the stability of increase built-in line tube insertion, the built-in line tube interface extended goes out the mouth of pipe of bend pipe, interior after extension
The total length for putting spool interface is equal to the length of external spool interface.
For increase joint strength, the port wall thickness of the built-in line tube interface and external spool interface locally increases.
In conventional design, the bore of the external spool interface is designed as the bore equal to built-in line tube interface.
The material-saving of above-mentioned purpose can be realized includes the line at 90 ° of bend pipe two ends along stylet elbow, the two of its technical scheme
Interface tube, except that the mouth of pipe of each spool interface is disposed as straight tube and turns into built-in line tube interface, one end built-in line tube
The bottom position of interface is no more than the axis of other end built-in line tube interface, and the bore of each built-in line tube interface is more than built-in line tube
Bend pipe bore corresponding to the bottom position of interface, forms the built-in spacing seam of built-in line tube insertion between the two, each built-in
The width of spacing seam is more than the wall thickness of the built-in line tube of correspondence insertion；Corresponding to the minimum curved width position of bend pipe, built in two ends
The end of spool, which is offered, makes the notch of both intersecting insertions.
For the stability of increase built-in line tube insertion, each built-in line tube interface extended goes out the mouth of pipe of bend pipe, each interior after extension
The total length for putting spool interface is equal.
For increase joint strength, the port wall thickness of each built-in line tube interface locally increases.
In conventional design, the bore of each built-in line tube interface is designed as equal.
With material-saving along the matching used present invention of stylet elbow along logical threading apparatus, including threading head and it is connected to threading head
The threading steel wire of rear end, the front portion of the threading head offers threading hole, and the front-end and back-end of the threading head are designed as semicircle
Shape.
Beneficial effects of the present invention：
Material-saving of the present invention can wear cable back and forth without being formed along stylet elbow and along logical threading apparatus by threading apparatus
Stop, easy to use, operating efficiency is high.
2nd, used the present invention is especially suitable for the embedded threading on wall or ground.
Brief description of the drawings
Fig. 1 is the utilization design sketch of the channel bend of prior art.
Fig. 2 is a kind of structural representation of embodiment of inventive pipeline elbow.
Fig. 3 is that Fig. 2 embodiments insert spool and the design sketch (termination of built-in line tube of threading is distinguished with threading apparatus two
For flush end).
Fig. 4 is that Fig. 2 embodiments insert spool and the design sketch (termination of built-in line tube of threading is distinguished with threading apparatus two
For one end height, one end is low).
Fig. 5 is that Fig. 2 embodiments insert spool and the design sketch (flush end of built-in line tube of threading is distinguished with threading apparatus two
Head opens up notch).
Fig. 6 is the structural representation of inventive pipeline elbow another embodiment.
Fig. 7 is that Fig. 6 embodiments insert spool and the design sketch of threading is distinguished with threading apparatus two.
Fig. 8 is the design sketch that Fig. 3, Fig. 4, Fig. 5 embodiment combine embedded threading.
Fig. 9 is the design sketch that Fig. 7 embodiments combine embedded threading.
Figure 10 (a) is the structural representation of Fig. 2, Fig. 6 embodiment formation three-way elbow.
Figure 10 (b) is the structural representation of Fig. 2, Fig. 6 embodiment formation four-way elbow.
Figure 11 is a kind of structural representation of embodiment of threading apparatus of the present invention.
Figure number is identified：1st, bend pipe；2nd, external spool interface；3rd, built-in line tube interface；4th, external spool；5th, built-in line tube；
6th, external spacing seam；7th, built-in spacing seam；8th, along logical threading apparatus；8-1, threading head；8-2, threading steel wire；8-3, threading
Hole；9th, three-way elbow；10th, four-way elbow；11st, cable；12nd, terminal box.
Embodiment
Illustrated embodiment is further described to technical scheme below in conjunction with the accompanying drawings：
First scheme：Material-saving of the present invention is along the bend pipe 1 that the main body for elbow of threading a pipe is 90 °, the mouth of pipe in the upper right side of bend pipe 1
Outer to set external spool interface 2, external the spool interface 2 and the mouth of pipe are coaxially connected, the other end mouth of pipe of the lower left of bend pipe 1
It is set to straight tube and turns into built-in line tube interface 3, the bottom position of the built-in line tube interface 3 is no more than external spool interface 2
Axis, cable 11 can substantially run through bend pipe 1 between external spool interface 2 and built-in line tube interface 3, as shown in Figure 2.
The bore of the external spool interface 2 is more than the nozzle diameter in the upper right side of bend pipe 1, forms external spacing between the two
Seam 6, the port wall thickness of external spool interface 2 locally increases, external spacing when external spool 4 inserts external spool interface 2
Seam 6 limits the insertion depth of external spool 4, to avoid the wall thickness of external spool 4 from hindering threading apparatus 8 beyond nozzle diameter
(component of threading head and steel wire) is passed through, and the width of the external spacing seam 6 is more than the wall thickness of external spool 4, is
The influence of the external port burr of spool 4 is prevented, the width of external spacing seam 6 is preferably equal to wall thickness × 2 of external spool 4, such as
Shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5.
The bore of the built-in line tube interface 3 is more than the bore of bend pipe 1 corresponding to the bottom position of built-in line tube interface 3, two
Built-in spacing seam 7 is formed between person, when built-in line tube 5 inserts built-in line tube interface 3, built-in spacing seam 7 limits interior
The insertion depth of spool 5 is put, to avoid the wall thickness of built-in line tube 5 from hindering passing through for threading apparatus 8 beyond the bore of bend pipe 1,
The width of built-in spacing seam 7 is more than the wall thickness of built-in line tube 5, built-in spacing to prevent the influence of the port burr of built-in line tube 5
The width of seam 7 is preferably equal to wall thickness × 2 of built-in line tube 5, as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5.
To improve the inserting stability of built-in line tube 5, the built-in line tube interface 3 extends to outside the mouth of pipe of bend pipe 1, built-in
Total length after the extension of spool interface 3 is equal to the length of external spool interface 2, the port wall of the external spool interface 2 after extension
Thick local increase；The insertion termination of the built-in line tube 5 can be flush end, as shown in figure 3, but to avoid inserting for built-in line tube 5
Enter influence of the termination to threading, the termination of built-in line tube 5 may be designed as that side is high and opposite side is low, built-in line tube 5 it is high-end right
Should be in the maximum curved width position of bend pipe 1, the low side of built-in line tube 5 is corresponding in the minimum curved width position of bend pipe 1, as shown in figure 4,
It can correspond in the minimum curved width position of bend pipe 1, in opening up notch on the butt end of built-in line tube 5, as shown in Figure 5；It is described external
The bore of spool interface 2 and the bore of built-in line tube interface 3 are set to equal and are matched with the inside and outside caliber for putting spool 5,4, such as scheme
2nd, shown in Fig. 3, Fig. 4, Fig. 5.
In said structure, the two ends insertion spool of bend pipe 1, threading apparatus 8 passes through built-in line tube interface 3 and external spool interface
2 walk in bend pipe 1, because built-in line tube interface 3 is in the mouth of pipe of bend pipe 1, shorten the wearing in bend pipe 1 of threading apparatus 8
Row distance, and spool effectively avoids the inwall of bend pipe 1 and the bottom for inserting termination of built-in line tube 5 is in the minimum curved of bend pipe 1
At width, so that threading apparatus 8 is walked and come and gone back and forth pulls cable 11 in the absence of any obstacle, such as Fig. 2, Fig. 3, Fig. 4, Fig. 5 institute
Show.
Embodiment shown in Fig. 8 can more embody material-saving of the present invention along where the advantage of stylet elbow first scheme：Three
Individual diameter 20mm bend pipe 1 is buried in wall or subsurface corresponding to terminal box 12 and used, and by each bend pipe of spool sequential communication
1, it can not touch because bend pipe 1 is invisible, only penetrated, passed from the 3rd bend pipe 1, so from first bend pipe 1 by threading apparatus 8
Cable 11 is pullled by threading apparatus 8 afterwards from the 3rd bend pipe 1 to enter and pass from the 1st bend pipe 1 and realize that cable 11 is curved in three
Threading in pipe 1, because material-saving of the present invention has unimpeded threading path along stylet elbow so that threading operation is easily as anti-
The palm.
Alternative plan：Material-saving of the present invention is along the bend pipe 1 that the main body for elbow of threading a pipe is 90 °, by upper right side one end of bend pipe 1
The mouth of pipe and the lower left other end mouth of pipe are set to straight tube and turn into built-in line tube interface 3, the bottom position of one end built-in line tube interface 3
The axis no more than other end built-in line tube interface 3 is put, because two ends distance more shortens, cable 11 is more accessible two
Run through bend pipe 1 between end built-in line tube interface 3, as shown in Figure 6.
The bore of each end built-in line tube interface 3 is more than the bore of bend pipe 1 corresponding to the bottom position of built-in line tube interface 3, two
Built-in spacing seam 7 is formed between person, when built-in line tube 5 inserts built-in line tube interface 3, built-in spacing seam 7 limits interior
The insertion depth of spool 5 is put, to avoid the wall thickness of built-in line tube 5 from hindering passing through for threading apparatus 8 beyond the bore of bend pipe 1,
The width of built-in spacing seam 7 is more than the wall thickness of built-in line tube 5, built-in spacing to prevent the influence of the port burr of built-in line tube 5
The width of seam 7 is preferably equal to wall thickness × 2 of built-in line tube 5, as shown in Figure 6, Figure 7.
To improve the inserting stability of built-in line tube 5, each end built-in line tube interface 3 extends to outside the mouth of pipe of bend pipe 1, each end
Total length after built-in line tube interface 3 extends is equal, and the port wall thickness of the built-in line tube interface 3 after extension locally increases；To keep away
Exempt from interfering between the insertion termination of built-in line tube 5, corresponding to the minimum curved width position of bend pipe 1, the end of each built-in line tube 5
Head offers notch, and the notch not only makes the end of two built-in line tubes 5 intersect insertion, while also allowing the cable of line 11 smooth logical
Cross；The bore of two ends built-in line tube interface 3 is set to equal and is matched with the caliber of built-in line tube 5, as shown in Figure 7.
In said structure, the two ends insertion spool of bend pipe 1, threading apparatus 8 is by two ends built-in line tube interface 3 in bend pipe 1
Walk, because built-in line tube interface 3 is in the mouth of pipe of bend pipe 1, shortens threading apparatus 8 and walk distance in bend pipe 1, and
Spool effectively avoids the notch that the insertion termination of the inwall of bend pipe 1 and built-in line tube 5 is opened up at the minimum curved width of bend pipe 1, so that
Threading apparatus 8 is walked and is come and gone back and forth and pull cable 11 in the absence of any obstacle, as shown in Figure 6, Figure 7.
Embodiment shown in Fig. 9 can more embody material-saving of the present invention along where the advantage for elbow alternative plan of threading a pipe：Three
Individual diameter 20mm bend pipe 1 is buried in wall or subsurface corresponding to terminal box 12 and used, and each by the sequential communication of built-in line tube 5
Bend pipe 1, can not touch because bend pipe 1 is invisible, is only penetrated, worn from the 3rd bend pipe 1 from first bend pipe 1 by threading apparatus 8
Go out, then pullling cable 11 by threading apparatus 8 enters from the 3rd bend pipe 1 and passed from the 1st bend pipe 1 and realize cable 11 in three
Threading in individual bend pipe 1, because the suitable elbow of threading a pipe of material-saving of the present invention has unimpeded threading path so that threading operation is easily such as
Turn one's hand over.
Material-saving of the present invention is not limited solely to the utilization of two logical elbows along two kinds of technical schemes of elbow of threading a pipe, for threeway
Elbow 9, four-way elbow 10 are equally applicable, such as shown in Figure 10 (a), Figure 10 (b).
Material-saving of the present invention is applicable not only to the cable wiring manufacture of cable along elbow of threading a pipe, and is also adapted to water pipe, sewer, coal
Feed channel, pneumatic circuit, the construction and installation of fluid pressure line.
With material-saving along threading a pipe the matching used threading apparatus 8 of the present invention of elbow, including threading head 8-1 and it is connected to threading head
Threading the steel wire 8-2, the threading head 8-1 of 8-1 rear ends front portion offer threading hole 8-3, the front end of the threading head 8-1 and
Rear end semicircular in shape shape, corresponding to the bend pipe 1 of different model specification, the selection of threading head 8-1 length is defined by being easy to threading, such as
Shown in Fig. 3, Fig. 4, Fig. 5, Fig. 7, Figure 11.
Claims (9)
1. material-saving includes the spool interface at 90 ° of bend pipe (1) two ends, the spool interface is respectively external line along elbow of threading a pipe
Interface tube (2) and built-in line tube interface (3), the external spool interface (2) in coaxially connected outside one end mouth of pipe of bend pipe (1),
The other end mouth of pipe of bend pipe (1) is set to straight tube and turns into built-in line tube interface (3), the bottom of the built-in line tube interface (3)
Position is no more than the axis of external spool interface (2), it is characterised in that：It is right that the bore of the external spool interface (2) is more than institute
Bend pipe (1) nozzle diameter answered, forms the external spacing seam (6) of external spool (4) insertion between the two, described external spacing
The width of seam (6) is more than the wall thickness of external spool (4)；The bore of the built-in line tube interface (3) is more than built-in line tube interface
(3) bend pipe (1) bore corresponding to bottom position, forms the built-in spacing seam of built-in line tube (5) insertion between the two
(7), the width of the built-in spacing seam (7) is more than the wall thickness of built-in line tube (5)；The termination of the built-in line tube (5) is flat
End or the termination of the built-in line tube (5) for side is high and opposite side is low, low side correspondence the minimum curved width position of bend pipe (1),
Or corresponding to the minimum curved width position of bend pipe (1), the butt end of the built-in line tube (5), which is offered, allows line (11) cable is smooth to pass through
Notch.
2. material-saving according to claim 1 is along elbow of threading a pipe, it is characterised in that：Built-in line tube interface (3) extension
The total length for going out built-in line tube interface (3) after the mouth of pipe of bend pipe (1), extension is equal to the length of external spool interface (2).
3. material-saving according to claim 2 is along elbow of threading a pipe, it is characterised in that：The built-in line tube interface (3) and outer
The port wall thickness for putting spool interface (2) locally increases.
4. the material-saving according to any one in claims 1 to 3 is along elbow of threading a pipe, it is characterised in that：The external line
The bore of interface tube (2) is equal to the bore of built-in line tube interface (3).
5. material-saving includes the spool interface at 90 ° of bend pipe (1) two ends along elbow of threading a pipe, it is characterised in that：The pipe of each spool interface
Mouth is disposed as straight tube and as built-in line tube interface (3), the bottom position of one end built-in line tube interface (3) is no more than the other end
The axis of built-in line tube interface (3), the bore of each built-in line tube interface (3) is more than the bottom position institute of built-in line tube interface (3)
Corresponding bend pipe (1) bore, forms the built-in spacing seam (7) of built-in line tube (5) insertion, each built-in spacing seam between the two
(7) width is more than the wall thickness of the built-in line tube (5) of correspondence insertion；Corresponding to the minimum curved width position of bend pipe (1), built in two ends
The end of spool (5), which is offered, makes the notch of both intersecting insertions.
6. material-saving according to claim 5 is along elbow of threading a pipe, it is characterised in that：Each built-in line tube interface (3) extends
The mouth of pipe of bend pipe (1), the total length of each built-in line tube interface (3) is equal after extension.
7. material-saving according to claim 6 is along elbow of threading a pipe, it is characterised in that：The port of each built-in line tube interface (3)
Wall thickness locally increases.
8. the material-saving according to any one in claim 5~7 is along elbow of threading a pipe, it is characterised in that：Each built-in line tube
The bore of interface (3) is equal.
9. with the material-saving described in any one in any one in claims 1 to 3 or claim 5~7 along elbow of threading a pipe
Matching used suitable logical threading apparatus (8), including threading head (8-1) and the threading steel wire (8- for being connected to threading head (8-1) rear end
2), the front portion of the threading head (8-1) offers threading hole (8-3), it is characterised in that：The front end of the threading head (8-1) and
Rear end semicircular in shape shape.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016100388938 | 2016-01-20 | ||
| CN2016200567609 | 2016-01-20 | ||
| CN201610038893 | 2016-01-20 | ||
| CN201620056760 | 2016-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106992478A true CN106992478A (en) | 2017-07-28 |
Family
ID=59413748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610101228.9A Pending CN106992478A (en) | 2016-01-20 | 2016-02-23 | Material-saving is along elbow and the suitable logical threading apparatus of threading a pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106992478A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2229486Y (en) * | 1995-07-25 | 1996-06-19 | 李宜寿 | Multi-knuckle joint ball shape structure receiving utility lines device |
| CN2882052Y (en) * | 2006-01-09 | 2007-03-21 | 陈杰 | Wire conduit bend |
| CN103840410A (en) * | 2012-11-24 | 2014-06-04 | 刘云标 | Combined type assembled plastic bend and tee joint |
| CN204258200U (en) * | 2014-12-07 | 2015-04-08 | 甘国强 | Channel bend |
| CN204905774U (en) * | 2015-09-01 | 2015-12-23 | 国网山东诸城市供电公司 | Wiring threading apparatus |
-
2016
- 2016-02-23 CN CN201610101228.9A patent/CN106992478A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2229486Y (en) * | 1995-07-25 | 1996-06-19 | 李宜寿 | Multi-knuckle joint ball shape structure receiving utility lines device |
| CN2882052Y (en) * | 2006-01-09 | 2007-03-21 | 陈杰 | Wire conduit bend |
| CN103840410A (en) * | 2012-11-24 | 2014-06-04 | 刘云标 | Combined type assembled plastic bend and tee joint |
| CN204258200U (en) * | 2014-12-07 | 2015-04-08 | 甘国强 | Channel bend |
| CN204905774U (en) * | 2015-09-01 | 2015-12-23 | 国网山东诸城市供电公司 | Wiring threading apparatus |
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| PB01 | Publication | ||
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Application publication date: 20170728 |
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