CN109962440A - A kind of high-tension cable pipeline configuration of Demountable combined-type - Google Patents

A kind of high-tension cable pipeline configuration of Demountable combined-type Download PDF

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Publication number
CN109962440A
CN109962440A CN201910322995.6A CN201910322995A CN109962440A CN 109962440 A CN109962440 A CN 109962440A CN 201910322995 A CN201910322995 A CN 201910322995A CN 109962440 A CN109962440 A CN 109962440A
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CN
China
Prior art keywords
main body
embedded
groove
tension cable
separation member
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Granted
Application number
CN201910322995.6A
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Chinese (zh)
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CN109962440B (en
Inventor
嵇旭辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Najiang Pipeline Technology Co.,Ltd.
Original Assignee
Wenzhou Huan Hong Textile Co Ltd
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Priority to CN201910322995.6A priority Critical patent/CN109962440B/en
Publication of CN109962440A publication Critical patent/CN109962440A/en
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Publication of CN109962440B publication Critical patent/CN109962440B/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00Installations of electric cables or lines in or on the ground or water
    • H02G9/06Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor

Abstract

The present invention provides a kind of high-tension cable pipeline configuration of Demountable combined-type, comprising: insertion groove, fixing groove, block, separation member are embedded in head, are inserted into pipeline, returning face plate, connector and locating part;The insertion head on the separation member top is mounted on the inside of the embedded groove of main body inner wall by way of insertion;The top of the connector is mounted on the two sides of the bottom of main body by way of being fixedly connected, and locating part is mounted on the inside grooves of returning face plate top side by way of insertion, separation member herein, which plays the role of will pass through, carries out classification isolation or shunting in the cable of body interior, different types of cable is allowed to separate and be isolated, other cables are influenced when having prevented cable from accident occur, insertion pipeline inside separation member herein is for being inserted into cable, different types of cable is allowed to be fixed on the inside of different separation members, so that separation member drive cable is fixed on the inside of main body.

Description

A kind of high-tension cable pipeline configuration of Demountable combined-type
Technical field
The invention belongs to high-tension cable pipe technology fields, more specifically, in particular to the high pressure of Demountable combined-type Cable channel structure.
Background technique
In power engineering, it usually needs be embedded in soil using pipeline, then pass through high-tension cable, to prevent height Occur breakage after the use of voltage cable long-time, or influences the service life of high-tension cable.
Based on equipment in the prior art find, existing high-tension cable pipeline configuration when in use, according to soil The structure of the soft degree adjustment depth of matter is incomplete, and it is curved to be easy to appear pipeline in softer soil property, after long-time use Bent phenomenon, influences service life, and existing high-tension cable pipeline configuration while carrying out high-tension cable and passing through by its point Class or the perforative structure of shunting are incomplete.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of high-tension cable pipeline configuration of Demountable combined-type, with Solve existing high-tension cable pipeline configuration when in use, it is not complete enough in the structure according to the soft degree adjustment depth of soil property It is kind, in softer soil property, the phenomenon that being easy to appear pipe bending after long-time use, service life is influenced, and existing High-tension cable pipeline configuration is classified while carrying out high-tension cable and passing through or shunts that perforative structure is incomplete to ask Topic.
The present invention a kind of purpose and effect of the high-tension cable pipeline configuration of Demountable combined-type, by technology hand in detail below Section is reached:
A kind of high-tension cable pipeline configuration of Demountable combined-type, including main body, embedded groove, inner tube, contact, outer support bullet Spring, connecting rod, embedded block move block, contact ring, embed storehouse, sealing shroud, insertion groove, fixing groove, block, separation member, insertion Head is inserted into pipeline, returning face plate, connector and locating part;The main body is cylindrical interior hollow structure, and the inside of main body is logical It crosses connector to be connected with the inner tube in body interior middle position, and the left end of main body is equipped with the insertion storehouse of T shape cyclic structure, and The inner end of contact is connected by outer support spring with insertion storehouse inner wall, and the inner end of connecting rod is pacified by way of being fixedly connected Mounted in the right end marginal position of main body;The inner end of the contact ring is equipped among the right end of main body by way of being fixedly connected Position;The insertion groove and fixing groove are located on the outside of the left end of main body;The side that the insertion head on the separation member top passes through insertion Formula is mounted on the inside of the embedded groove of main body inner wall;The top of the connector is mounted on main body by way of being fixedly connected Two sides of the bottom, and locating part is mounted on the inside grooves of returning face plate top side by way of insertion.
Further, the inside of the main body is equipped with the embedded groove of evenly distributed T shape strip structure, and main body is interior Portion middle position is equipped with the inner tube of cylindrical elongate configuration.
Further, the contact is cyclic structure, and the outside of contact is wedge structure, and the inner end of contact For T-shaped structure, and the inner end of contact is mounted on inside the insertion storehouse of main body left end by way of insertion.
Further, the connecting rod is rectangular plate-like structure, and the embedding of rectangular configuration is equipped with inside the outer end of connecting rod Enter block, and the outer end side of connecting rod moves block equipped with rectangular configuration.
Further, the contact ring is cyclic structure, and the outside for contacting ring is equipped with the embedded of triangle cyclic structure Storehouse, and the outside for contacting ring is equipped with the sealing shroud of rubber material by way of bonding.
Further, the insertion groove is skewed rectangular recess, and the inner end of insertion groove is equipped with the fixation of rectangular configuration Slot, and the block of rectangular configuration is equipped between insertion groove and fixing groove.
Further, the bottom of the separation member is arcuate structure, and the top of separation member is equipped with the embedding of arcuation T-shaped structure Enter head, and the inside of separation member is equipped with the insertion pipeline of cylindrical elongate configuration.
Further, the returning face plate is rectangular plate-like structure, and the bottom end of returning face plate is wedge structure, and returning face plate Top side is equipped with the groove of rectangular slat shape structure, and the top of returning face plate is connected by shaft with the bottom end of connector, And connector is connected by way of being fixedly connected with locating part.
Compared with prior art, the invention has the following beneficial effects:
In the present apparatus, it is provided with separation member and returning face plate, separation member herein, which plays, will pass through in body interior Cable carries out the effect of classification isolation or shunting, allows different types of cable to separate and be isolated, has prevented cable from going out Influence other cables when existing accident, the insertion pipeline inside separation member herein be for being inserted into cable so that Different types of cable can be fixed on the inside of different separation members, so that separation member drives cable to be fixed on main body Inside, and be embedded in head then and be the inside for being mounted on the embedded groove of body interior, thus make separation member pass through cable it Afterwards, the inner wall of main body can be fixed on, allow to that cable is classified as desired, and returning face plate herein be then for The present apparatus is fixed, when so that the present apparatus is used in the softer soil, can prevent the present apparatus from making for a long time With later bending sink, and when need be fixed in more hard soil when, can by the returning face plate of main body two sides into Row overturning closure contact, so that the bottom end wedgewise of turnover panel, to be downwardly into fixation, the bottom end of returning face plate is wedge structure, It is so that the present apparatus is not easy to sink, and to make when being closed in order to which the contact area with soil can be increased when being unfolded to use With when, wedge structure may be incorporated in together, to carry out using and locating part is then for limiting returning face plate , so that returning face plate will not be overturn again when being turned to fixed angle, the present apparatus is fixed, to solve When in use, incomplete in the structure according to the soft degree adjustment depth of soil property, in softer soil property, make for a long time The phenomenon that with pipe bending is easy to appear later, influences service life, and existing high-tension cable pipeline configuration is carrying out high pressure Classified while cable passes through or shunts the incomplete problem of perforative structure.
Detailed description of the invention
Fig. 1 is schematic perspective view of the invention.
Fig. 2 is the portion the A partial enlargement structural representation that the present invention is drawn by Fig. 1.
Fig. 3 is main body left end local interior structural schematic diagram of the invention.
Fig. 4 is sealing shroud schematic diagram of internal structure of the invention.
Fig. 5 is connecting rod sectional perspective structural schematic diagram of the invention.
Fig. 6 is main body side structure schematic view of the invention.
Fig. 7 is separation member side structure schematic view of the invention.
Fig. 8 is returning face plate side structure schematic view of the invention.
In figure, the corresponding relationship of component names and accompanying drawing number are as follows:
Main body -1, embedded groove -101, inner tube -102, contact -103, outer support spring -104, connecting rod -105, embedded block - 106, it moves block -107, contacts ring -2, embed storehouse -201, sealing shroud -202, insertion groove -3, fixing groove -301, block -302, point Off member -4 is embedded in head -401, is inserted into pipeline -402, returning face plate -5, connector -501, locating part -502.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment is used for Illustrate the present invention, but cannot be used to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more;Term " on ", The orientation or positional relationship of the instructions such as "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair Limitation of the invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and should not be understood as instruction or Imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected;It can be machine Tool connection, is also possible to be electrically connected;It can be directly connected, it can also be indirectly connected through an intermediary.For this field For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment:
As shown in attached drawing 1 to attached drawing 8:
The present invention provides a kind of high-tension cable pipeline configuration of Demountable combined-type, includes: main body 1, embedded groove 101, Inner tube 102, contact 103, outer support spring 104, connecting rod 105, embedded block 106 move block 107, contact ring 2, embed storehouse 201, sealing shroud 202, insertion groove 3, fixing groove 301, block 302, separation member 4, insertion head 401, insertion pipeline 402, returning face plate 5, connector 501 and locating part 502;Main body 1 is cylindrical interior hollow structure, and the inside of main body 1 passes through connector and master The inner tube 102 of 1 bosom position of body is connected, and the left end of main body 1 is equipped with the insertion storehouse of T shape cyclic structure, and contact 103 inner end is connected by outer support spring 104 with insertion storehouse inner wall, and the inner end of connecting rod 105 passes through the side being fixedly connected Formula is mounted on the right end marginal position of main body 1;The inner end of contact ring 2 is equipped with the right end of main body 1 by way of being fixedly connected Middle position;Insertion groove 3 and fixing groove 301 are located on the outside of the left end of main body 1;The insertion head 401 on 4 top of separation member passes through insertion Mode be mounted on 1 inner wall of main body embedded groove 101 inside;It is installed by way of being fixedly connected on the top of connector 501 In the two sides of the bottom of main body 1, and locating part 502 is mounted on the inside grooves of 5 top side of returning face plate by way of insertion.
Wherein, the inside of main body 1 is equipped with the embedded groove 101 of evenly distributed T shape strip structure, and the inside of main body 1 Middle position is equipped with the inner tube 102 of cylindrical elongate configuration, and the embedded groove 101 of T-shaped structure is for being embedded in installation separation herein The insertion head 401 of 4 top of part, allow separation member 4 to be fixed on the inner wall of main body 1, and inner tube 102 is then for installing Through thicker cable, thicker cable is allowed to be fixed on the middle position of main body 1, thus with separation member 4 and other Electrical cables separate, other cables are not interfered with when preventing cable from causing an accident.
Wherein, contact 103 is cyclic structure, and the outside of contact 103 is wedge structure, and contact 103 is interior End is T-shaped structure, and the inner end of contact 103 is mounted on inside the insertion storehouse of 1 left end of main body by way of insertion, herein Contact 103 be for sealing shroud 202 and contact ring 2 contact so that the present apparatus of same structure linked together When, sealing effect can be more preferable, prevents foreign matter or underground water from entering the inside of main body 1, to influence the use of cable Service life, the outer end of contact 103 are that wedge structure is made to be embedded in the inside for contacting the embedded storehouse 201 inside ring 2 It is more preferable to obtain sealing effect, and the inner end of contact 103 is embedded in the inside of main body 1, is in order to when installing contact 103 There can be the leeway of buffering, contact 103 is allowed preferably to be inserted in the inside in embedded storehouse 201.
Wherein, connecting rod 105 is rectangular plate-like structure, and the insertion of rectangular configuration is equipped with inside the outer end of connecting rod 105 Block 106, and the outer end side of connecting rod 105 moves block 107 equipped with rectangular configuration, connecting rod 105 herein is for passing through Embedded block 106 is mounted on the inside of insertion groove 3 and fixing groove 301, so that several present apparatus are close when linking together It is more preferable to seal effect, and embedded block 106 is then the inside for being embedded in fixing groove 301, to the present apparatus be tensed, so that contact Part 103 is closely embedded in the inside in embedded storehouse 201, and moving block 107 then is for releasing embedded block 106 in fixing groove 301 Inside so that the present apparatus be free to dismantle.
Wherein, contact ring 2 is cyclic structure, and the outside for contacting ring 2 is equipped with the embedded storehouse 201 of triangle cyclic structure, And the outside for contacting ring 2 is equipped with the sealing shroud 202 of rubber material by way of bonding, contact ring 2 herein be for What contact 103 was contacted, so that junction sealing is more preferable, and interior when needing to link together using the present apparatus Embedding storehouse 201 be then for the outer end of imbedding and contact part 103, and sealing shroud 202 be mounted on contact ring 2 outside, then be in order to So that being first in contact with sealing shroud 202 when contact 103 is embedded in, so that sealing effect is more preferable.
Wherein, insertion groove 3 is skewed rectangular recess, and the inner end of insertion groove 3 is equipped with the fixing groove 301 of rectangular configuration, And between insertion groove 3 and fixing groove 301 be equipped with rectangular configuration block 302, the embedded groove 3 of ramp-like configuration herein be for Pass through embedded block 106, when so that the present apparatus of two equifinalities links together, it is only necessary to which rotation can just make Embedded block 106 is mobile in the inside of embedded groove 3, so that it is in close contact two present apparatus gradually, and fixing groove 301 is then embedding When entering block 106 and be moved to outermost end, embedded block 106 is set to be embedded in the inside of fixing groove 301, to make two same structures The present apparatus can closely link together, and block 302 is then to prevent embedded block 106 for blocking embedded block 106 It is mobile.
Wherein, the bottom of separation member 4 is arcuate structure, and the top of separation member 4 is equipped with the insertion head of arcuation T-shaped structure 401, and the inside of separation member 4 is equipped with the insertion pipeline 402 of cylindrical elongate configuration, separation member 4 herein, which plays, will pass through Cable inside main body 1 carries out the effect of classification isolation or shunting, and different types of cable is allowed to separate and be isolated, Other cables are influenced when having prevented cable from accident occur, the insertion pipeline 402 inside separation member 4 herein be for It is inserted into cable, allows different types of cable to be fixed on the inside of different separation members 4, so that 4 band of separation member Dynamic cable is fixed on the inside of main body 1, and being embedded in first 401 is then the inside for being mounted on the embedded groove 101 inside main body 1 , thus make separation member 4 pass through cable after, the inner wall of main body 1 can be fixed on, allow to as desired by cable into Row classification.
Wherein, returning face plate 5 is rectangular plate-like structure, and the bottom end of returning face plate 5 is wedge structure, and the top of returning face plate 5 Side is equipped with the groove of rectangular slat shape structure, and the top of returning face plate 5 is connected by shaft with the bottom end of connector 501, And connector 501 is connected by way of being fixedly connected with locating part 502, returning face plate 5 herein is then for by the present apparatus It is fixed, when so that the present apparatus is used in the softer soil, can prevent curved after present apparatus long-time use Song sink, and when needing to be fixed in more hard soil, the returning face plate 5 of 1 two sides of main body can be overturn Closure contact, so that the bottom end wedgewise of turnover panel 5, to be downwardly into fixation, the bottom end of returning face plate 5 is wedge structure, be for When being unfolded to use, the contact area with soil can be increased, so that the present apparatus is not easy to sink, and used when closure When, wedge structure may be incorporated in together, to carry out using and locating part 502 is then for limiting returning face plate 5 Position, so that returning face plate 5 will not be overturn again when being turned to fixed angle, the present apparatus is fixed.
When use: first moving several present apparatus by manpower, then will be overturn according to the soft degree of soil Plate 5 is overturn, if encountering softer soil property, then needs to overturn returning face plate 5, and increase returning face plate 5 connects with soil Contacting surface product, if encounter harder soil property, returning face plate 5 can be closed up, to be inserted in soil, make this dress It sets and is more consolidated when installing and using, main body 1 is fixed on above soil, then will need quantity as desired Separation member 4 is mounted on the inside of main body 1, makes to be embedded in head 401 and is inserted into the inside of embedded groove 101, then by another main body 1 with The present apparatus is attached, and is held main body 1 by manpower, is moved embedded block 106 along insertion groove 3, until embedded groove 106 are moved to the inside of fixing groove 301, so that the present apparatus be linked together, using same method by suitable length quantity Main body 1 link together, cable penetration in inner tube 102 or is then inserted by the inside of pipeline 402 by manpower or machine, It is buried to complete cable penetration with pipeline use.
The embodiment of the present invention is given for the purpose of illustration and description, and is not exhaustively or by this to send out It is bright to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing Selecting and describe embodiment is and to make those skilled in the art to more preferably illustrate the principle of the present invention and practical application It will be appreciated that the present invention is to design various embodiments suitable for specific applications with various modifications.

Claims (8)

1. a kind of high-tension cable pipeline configuration of Demountable combined-type, it is characterised in that: the high-tension cable of the Demountable combined-type Pipeline configuration includes: main body (1), embedded groove (101), inner tube (102), contact (103), outer support spring (104), connecting rod (105), embedded block (106) move block (107), contact ring (2), embed storehouse (201), sealing shroud (202), insertion groove (3), Gu Determine slot (301), block (302), separation member (4), be embedded in head (401), is inserted into pipeline (402), returning face plate (5), connector (501) With locating part (502);The main body (1) is cylindrical interior hollow structure, and the inside of main body (1) passes through connector and main body (1) inner tube (102) of bosom position is connected, and the left end of main body (1) is equipped with the insertion storehouse of T shape cyclic structure, and connects The inner end of contact element (103) is connected by outer support spring (104) with insertion storehouse inner wall, and the inner end of connecting rod (105) passes through admittedly Surely the mode connected is mounted on the right end marginal position of main body (1);The inner end of contact ring (2) is by way of being fixedly connected The right end middle position of main body (1) is installed;The insertion groove (3) and fixing groove (301) are located on the outside of the left end of main body (1); The insertion head (401) on separation member (4) top is mounted on the embedded groove (101) of main body (1) inner wall by way of insertion It is internal;The top of the connector (501) is mounted on the two sides of the bottom of main body (1), and locating part by way of being fixedly connected (502) inside grooves of returning face plate (5) top side are mounted on by way of insertion.
2. the high-tension cable pipeline configuration of Demountable combined-type as described in claim 1, it is characterised in that: the main body (1) Inside is equipped with the embedded groove (101) of evenly distributed T shape strip structure, and the bosom position of main body (1) is equipped with cylinder The inner tube (102) of shape elongate configuration.
3. the high-tension cable pipeline configuration of Demountable combined-type as described in claim 1, it is characterised in that: the contact It (103) is cyclic structure, and the outside of contact (103) is wedge structure, and the inner end of contact (103) is T-shaped structure, and The inner end of contact (103) is mounted on inside the insertion storehouse of main body (1) left end by way of insertion.
4. the high-tension cable pipeline configuration of Demountable combined-type as described in claim 1, it is characterised in that: the connecting rod (105) it is rectangular plate-like structure, and is equipped with the embedded block (106) of rectangular configuration inside the outer end of connecting rod (105), and connecting rod (105) outer end side moves block (107) equipped with rectangular configuration.
5. the high-tension cable pipeline configuration of Demountable combined-type as described in claim 1, it is characterised in that: the contact ring (2) For cyclic structure, and the outside for contacting ring (2) is equipped with the embedded storehouse (201) of triangle cyclic structure, and contacts the outside of ring (2) The sealing shroud (202) of rubber material is installed by way of bonding.
6. the high-tension cable pipeline configuration of Demountable combined-type as described in claim 1, it is characterised in that: the insertion groove (3) For skewed rectangular recess, and the inner end of insertion groove (3) is equipped with the fixing groove (301) of rectangular configuration, and insertion groove (3) and fixed The block (302) of rectangular configuration is equipped between slot (301).
7. the high-tension cable pipeline configuration of Demountable combined-type as described in claim 1, it is characterised in that: the separation member (4) Bottom be arcuate structure, and the top of separation member (4) is equipped with the insertion head (401) of arcuation T-shaped structure, and separation member (4) Inside is equipped with the insertion pipeline (402) of cylindrical elongate configuration.
8. the high-tension cable pipeline configuration of Demountable combined-type as described in claim 1, it is characterised in that: the returning face plate (5) For rectangular plate-like structure, and the bottom end of returning face plate (5) is wedge structure, and the top side of returning face plate (5) is equipped with rectangular slat The groove of shape structure, and the top of returning face plate (5) is connected by shaft with the bottom end of connector (501), and connector (501) It is connected by way of being fixedly connected with locating part (502).
CN201910322995.6A 2019-04-22 2019-04-22 Detachable combined high-voltage cable pipeline structure Active CN109962440B (en)

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CN201910322995.6A CN109962440B (en) 2019-04-22 2019-04-22 Detachable combined high-voltage cable pipeline structure

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Application Number Priority Date Filing Date Title
CN201910322995.6A CN109962440B (en) 2019-04-22 2019-04-22 Detachable combined high-voltage cable pipeline structure

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CN109962440B CN109962440B (en) 2020-09-01

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201040170Y (en) * 2006-12-29 2008-03-26 盛华明 Foldable supporter
CN201475560U (en) * 2009-07-01 2010-05-19 江春宝 Improved structure of pipe joint
CN105958418A (en) * 2014-05-26 2016-09-21 龚利芬 Power pipeline
CN107565464A (en) * 2017-09-27 2018-01-09 上海贝思特管业有限公司 A kind of high life wear-resisting type CPVC power pipes
CN107634482A (en) * 2017-11-13 2018-01-26 广东中讯通讯设备实业有限公司 A kind of PE plum tubes with high compressive strength
CN108270175A (en) * 2018-03-12 2018-07-10 广东电网有限责任公司佛山供电局 A kind of folding cable construction stent
CN208311692U (en) * 2018-05-31 2019-01-01 博纳德(天津)港口工程有限公司 A kind of marine piping being easily installed
US20190089137A1 (en) * 2016-02-24 2019-03-21 Wesco Distribution, Inc. Apparatus for dividing a duct or conduit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201040170Y (en) * 2006-12-29 2008-03-26 盛华明 Foldable supporter
CN201475560U (en) * 2009-07-01 2010-05-19 江春宝 Improved structure of pipe joint
CN105958418A (en) * 2014-05-26 2016-09-21 龚利芬 Power pipeline
US20190089137A1 (en) * 2016-02-24 2019-03-21 Wesco Distribution, Inc. Apparatus for dividing a duct or conduit
CN107565464A (en) * 2017-09-27 2018-01-09 上海贝思特管业有限公司 A kind of high life wear-resisting type CPVC power pipes
CN107634482A (en) * 2017-11-13 2018-01-26 广东中讯通讯设备实业有限公司 A kind of PE plum tubes with high compressive strength
CN108270175A (en) * 2018-03-12 2018-07-10 广东电网有限责任公司佛山供电局 A kind of folding cable construction stent
CN208311692U (en) * 2018-05-31 2019-01-01 博纳德(天津)港口工程有限公司 A kind of marine piping being easily installed

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