CN110445073A - Steel pipe buried in advance part and its installation method based on assembled architecture wallboard - Google Patents
Steel pipe buried in advance part and its installation method based on assembled architecture wallboard Download PDFInfo
- Publication number
- CN110445073A CN110445073A CN201910678352.5A CN201910678352A CN110445073A CN 110445073 A CN110445073 A CN 110445073A CN 201910678352 A CN201910678352 A CN 201910678352A CN 110445073 A CN110445073 A CN 110445073A
- Authority
- CN
- China
- Prior art keywords
- tube body
- wallboard
- pipeline
- steel pipe
- assembled architecture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
-
- 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
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
-
- 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
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
- H02G3/0412—Heat or fire protective means
-
- 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
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
-
- 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
- H02G3/36—Installations of cables or lines in walls, floors or ceilings
- H02G3/38—Installations of cables or lines in walls, floors or ceilings the cables or lines being installed in preestablished conduits or ducts
- H02G3/386—Installations of cables or lines in walls, floors or ceilings the cables or lines being installed in preestablished conduits or ducts in walls
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a kind of steel pipe buried in advance parts and its installation method based on assembled architecture wallboard, it applies in technical field of building construction, its key points of the technical solution are that: including the casing being preset in wallboard, described sleeve pipe separates the channel worn for pipeline on wallboard, described sleeve pipe is by concrete masonry units in wallboard, the end sleeve of described sleeve pipe is equipped with the steering tube of folding type, and the casing in the adjacent wallboard is connected by steering tube, and the wire box being connected with casing is preset in the wallboard；Having the technical effect that for having reduces the operating procedure that operator needs to cut fluting on wallboard when laying pipeline, reduces operation difficulty.
Description
Technical field
The present invention relates to technical field of building construction, in particular to a kind of steel pipe buried in advance part based on assembled architecture wallboard
And the method for preheating embedding line.
Background technique
The necessity of assembled architecture wallboard steel pipe buried in advance is embodied in: assembled architecture evaluation criterion highlights internal partition wall and adopts
With wallboard, pipeline, fit up integrated " integration ".In the prior art, it is arranged for pipeline construction, if pipeline is not in factory
Carry out it is pre-buried, then need to carry out on-site manually cut fluting.When scene is slotted, heavy workload, dust are more, reduce
Working efficiency easily causes construction delay.
Summary of the invention
It is excellent the object of the present invention is to provide a kind of steel pipe buried in advance part and its installation method based on assembled architecture wallboard
Point is: without manually carrying out cutting fluting to the surface of wallboard, being conducive to the efficiency for improving construction.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of based on assembled architecture wall
The steel pipe buried in advance part of plate, including the casing being preset in wallboard, described sleeve pipe separates the channel worn for pipeline, institute on wallboard
It states casing to build in wallboard, the end sleeve of described sleeve pipe is equipped with the steering tube of folding type, the casing in the adjacent wallboard
It is connected by steering tube, the wire box being connected with casing is preset in the wallboard.
Through the above technical solutions, operator only needs without carrying out cutting fluting to wallboard during laying pipeline
Pipeline is worn into the channel in casing, and pipeline is worn out of casing into wire box, so that the end of a thread is reserved in wire box
It is interior.In this way, reducing the operating procedure for needing temporarily to slot on wallboard when operator lays pipeline, operator is improved
Working efficiency.
The present invention is further arranged to: described sleeve pipe includes semicircular first tube body and the second tube body, first pipe
Body and the second tube body surround a circle, and first tube body is preset in wallboard, and second tube body is located at the outside of wallboard, institute
The surface for stating the first tube body end face in axial direction and wallboard is flush, solid on the end face of first tube body in axial direction
It is connected to row's clip-connecting rod, correspondence offers clamping on the end face of the first tube body side of the second tube body direction in axial direction
Hole, the clip-connecting rod are connected in blocked hole.
Through the above technical solutions, between the first tube body and the second tube body by the way of being detachably connected, when pipeline exists
When burning in casing, convenient for operator by the second tube body of the corresponding position that pipeline is burnt removed from the first tube body so as to
Operator overhauls to the pipeline burnt and continued access.In this way, without operator pipeline is completely drawn out out of casing into
Row maintenance and continued access, reduce the operation difficulty that operator overhauls pipeline.
The present invention is further arranged to: screw rod is equipped on second tube body, the screw rod is located at the first tube body and
Two intracorporal one end of pipe are equipped with the abutting block contradicted on the outside of pipeline, and the end of the screw rod, which is rotatably connected on, to be pushed against on block, institute
It states and is threaded with nut on screw rod, the nut is rotatably connected on the outside of the second tube body.
Through the above technical solutions, in this way, being turned convenient for operator according to the diameter of the pipeline worn in casing
Nut, and lead-screw plays pipeline towards close to the mobile outside for being pushed against pipeline up to pushing against block in the direction of pipeline
The effect for limiting positioning, ensure that the regularity of stability and arrangement of the pipeline in pipe sleeve.
The present invention is further arranged to: the elastic shell that cross section is Contraband shape is enclosed on the outer wall of second tube body,
Card slot is offered on the outer wall of second tube body along its length, fixture block, institute are connected on the inner sidewall of the elastic shell
Fixture block is stated to be connected in card slot.
Through the above technical solutions, the setting of elastic shell, so that the screw rod and nut on the outside of the first tube body are by shell packet
It is trapped among in shell, plays the role of blocking, reduce screw rod and nut is lofty is arranged on the outside of wallboard to the powder of later period wallboard
The possibility that brush decoration is made troubles.
The present invention is further arranged to: first tube body is connected with dovetails, the swallow away from the side of the second tube body
Tail block is embedded in wallboard.
Through the above technical solutions, the setting of dovetails, increases the contact area between the first tube body and wallboard, favorably
In increasing the stability installed between the first tube body and wallboard, reduce the possibility that the first tube body is detached from out of wallboard.
The present invention is further arranged to: being installed with fire protection flame retarding layer on the lateral wall of first tube body and the second tube body.
Through the above technical solutions, when a fire, fire is blocked in the first tube body and the second tube body by fire protection flame retarding layer
Outside, the time for having delayed the first tube body and the second tube body and pipeline to be destroyed by fire, play the role of fireproof.
The present invention is further arranged to: the fire protection flame retarding layer is fire protection flame retarding layer made of flame retardant rubber.
Through the above technical solutions, flame retardant rubber refers to the rubber with flame retardancy and anti-flammability, and when fire occurs, resistance
It fires rubber to obstruct fire source in the outside of the first tube body and the second tube body, reduces the first tube body and the second tube body together with pipeline quilt
The possibility burnt, to advantageously reduce the loss of fire bring.
The present invention is further arranged to: a kind of installation method of the steel pipe buried in advance part based on assembled architecture wallboard, including
Following steps:
S1, the corresponding splicing of two adjacent wallboards is built together, and steering tube correspondence is connected to two adjacent wallboards
The first tube body outside；
S2, pipeline is then fed through the first tube body and steering tube and the end of a thread is reserved in wire box, so that pipeline is along wallboard
It lays, then be connected together the blocked hole on the second tube body is corresponding with the clip-connecting rod on the first tube body, and turns nut, to spiral shell
The position of bar is moved, and is contradicted until pushing against block in the outside of pipeline；
S3, finally the diameter of the opening of elastic shell broken into two with one's hands, so that on the second tube body of corresponding clamping of the fixture block on elastic shell
Card slot in so that elastic shell is wrapped in the periphery of the second tube body.
Through the above technical solutions, operator, after installing wall panel assemblies, operator wears pipeline into pre-buried
In one tube body, and the second tube body and the first tube body are combined and installed together, so that line layout is managed in the first tube body and second
In channel between body.In this way, making operator after building wallboard installation on wall, without live on wallboard
The step of cutting fluting is for laying pipeline, reducing operation is carried out, to improve the efficiency of work.
In conclusion the invention has the following advantages:
1. reducing the operating procedure that operator needs to slot on wallboard before laying pipeline, improve work efficiency；
2. enhancing the effect of the first tube body and the second tube body fire protection flame retarding.
Detailed description of the invention
Fig. 1 is in the present embodiment for embodying the pipeline in casing and casing and pushing against fast schematic diagram.
Fig. 2 is to show in the present embodiment for embodying the connection structure of two blocks of wallboards and casing and steering tube on wallboard
It is intended to.
Fig. 3 is the enlarged drawing in the portion A in Fig. 2.
Fig. 4 is in the present embodiment for embodying the schematic diagram of the distribution of casing and wire box on wallboard.
Appended drawing reference: 1, wallboard；2, casing；3, pipeline；4, channel；5, steering tube；6, wire box；7, the first tube body；8,
Two tube bodies；9, clip-connecting rod；10, blocked hole；11, screw rod；12, block is pushed against；13, nut；14, elastic shell；15, card slot；16, block
Block；17, dovetails；18, fire protection flame retarding layer.
Specific embodiment
Invention is described in further detail below in conjunction with attached drawing.
Embodiment: a kind of steel pipe buried in advance part based on assembled architecture wallboard, with reference to Fig. 1, including being preset in wallboard 1
Casing 2 is preset with the wire box 6 being connected with casing 2 in wallboard 1, and through concrete masonry units in wallboard 1, casing 2 wraps wire box 6
Semicircular first tube body 7 and the second tube body 8 are included, the first tube body 7 and the second tube body 8 surround a circle, and casing 2 is on wallboard 1
Separate the channel 4 worn for pipeline 3.It is installed with fire protection flame retarding layer 18 on the lateral wall of first tube body 7 and the second tube body 8, prevents fires
Flame-retardant layer 18 selects flame retardant rubber to be made.Flame retardant rubber has good flame retardancy and anti-flammability, when fire occurs, fire-retardant rubber
Glue obstructs fire source in the outside of the first tube body 7 and the second tube body 8, has delayed the first tube body 7 and the second tube body 8 together with pipeline 3
The time being burned out.
With reference to Fig. 1, the first tube body 7 is embedded in wallboard 1, and the first tube body 7 is bonded with one away from the side of the second tube body 8
A dovetails 17, dovetails 17 and the first tube body 7 are embedded in wallboard 1 commonly through concrete masonry units, and the first tube body 7 is along axial direction
The end face in direction and the surface of wallboard 1 are flush.The setting of dovetails 17 increases the contact between the first tube body 7 and wallboard 1
Area, to be conducive to improve the stability connected between the first tube body 7 and wallboard 1.
Referring to figs. 2 and 3, the second tube body 8 is located at the outside of wallboard 1, affixed on the end face of the first tube body 7 in axial direction
There is row's clip-connecting rod 9, the second tube body 8 offers blocked hole 10 towards correspondence on the end face in axial direction of 7 side of the first tube body.
It is equipped with row's screw rod 11 along axial direction on second tube body 8, screw rod 11 is located at the rotation of one end in the first tube body 7 and the second tube body 8
It is connected with and pushes against block 12, screw rod 11 is connected with nut 13 far from the threaded one end for pushing against block 12, and nut 13 is rotatably connected on second
The outside of tube body 8.
With reference to Fig. 1 and Fig. 2, when construction, operator builds the corresponding splicing of two adjacent wallboards 1 together, and will folding
The outside of corresponding the first tube body 7 for being connected to two adjacent wallboards 1 of the steering tube 5 of curved formula, the internal diameter of steering tube 5 and the first pipe
Body 7 is identical with the outer diameter for the casing 2 that the second tube body 8 is constituted.Then pipeline 3 is fed through the first tube body 7 and steering tube 5 by operator
And the end of a thread is reserved in wire box 6(Fig. 4) in, then by the blocked hole 10 on the second tube body 8 and 9 phase of clip-connecting rod on the first tube body 7
It is corresponding, and the end of the second tube body 8 correspondence is connected in steering tube 5.Then operator is by the second tube body 8 towards the first tube body
7 pressings, so that the correspondence of clip-connecting rod 9 is connected in blocked hole 10, so that the first tube body 7 and the splicing of the second tube body 8 are mounted on
Together.
With reference to Fig. 1, in this way, subtracting operator without slotting to wallboard 1, when laying pipeline 3 on wallboard 1
Reduce the difficulty of operation the step of having lacked operation.Then operator turns nut 13, and lead-screw 11 is towards close to pipeline
The mobile outside for being pushed against pipeline 3 up to pushing against block 12 in 3 direction, so that position of the pipeline 3 in casing 2 is locked, it is right
Pipeline 3 plays the role of positioning.When the failure of pipeline 3 or partial burnt-out phenomenon in casing 2,7 He of the first tube body
Between second tube body 8 by the way of being detachably connected, it is convenient for operator by the second tube body of corresponding position 8 from the first tube body 7
It disassembles, maintenance is carried out to the pipeline 3 of failure or partial burnt-out or continued access is replaced, it is simple and convenient.
With reference to Fig. 1, card slot 15 is offered on the outer wall of the second tube body 8 along its length, the outside of the second tube body 8 is equipped with cross
Section is the elastic shell 14 of Contraband shape, and in the present embodiment, elastic shell 14 selects made of plastic, the inner sidewall of elastic shell 14
On be bonded with fixture block 16.When installation, operator breaks the second tube body 8 from opening into two with one's hands, so that the fixture block 16 on elastic shell 14
In card slot 15 on the second tube body 8 of corresponding clamping, so that elastic shell 14 is wrapped in the periphery of the second tube body 8.Elastic shell 14
Setting reduce 11 He of screw rod so that the screw rod 11 and nut 13 in the second tube body 8 and the outside of the second tube body 8 are blocked
The lofty possibility that 1 outside of wallboard is set and is made troubles the painting decoration of later period wallboard 1 of nut 13.
Operating procedure: when installation, wallboard 1 is corresponded to build on wall first by operator, and will be on two neighboring wallboard 1
Casing 2 the first tube body 7 end correspondence be connected in the steering tube 5 of folding type.Then pipeline 3 is fed through by operator
One tube body 7 and steering tube 5, and the end of a thread of pipeline 3 is reserved in wire box 6, then operator is again by the corresponding installation of the second tube body 8
On the first tube body 7, so that pipeline 3 is arranged between the first tube body 7 and the second tube body 8.Then operator turns nut 13, and
By screw rod 11 towards passage in casing 2 until abutting block 12 and pipeline 3 are inconsistent.Finally, operator's opening elastic shell 14
Mouth is broken into two with one's hands, and the correspondence of fixture block 16 on elastic shell 14 is connected in card slot 15, so that the outside of the second tube body 8 is by elastic container
Body 14 wraps.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (8)
1. a kind of steel pipe buried in advance part based on assembled architecture wallboard, it is characterised in that: including the casing being preset in wallboard (1)
(2), described sleeve pipe (2) separates the channel (4) worn for pipeline (3) on wallboard (1), and described sleeve pipe (2) is built in wallboard (1)
Interior, the end sleeve of described sleeve pipe (2) is equipped with the steering tube (5) of folding type, and the casing (2) in the adjacent wallboard (1) passes through
Steering tube (5) is connected, and is preset with the wire box (6) being connected with casing (2) in the wallboard (1).
2. the steel pipe buried in advance part according to claim 1 based on assembled architecture wallboard, it is characterised in that: described sleeve pipe
It (2) include semicircular first tube body (7) and the second tube body (8), first tube body (7) and the second tube body (8) surround one
Circle, first tube body (7) are preset in wallboard (1), and second tube body (8) is located at the outside of wallboard (1), first pipe
The end face of body (7) in axial direction and the surface of wallboard (1) are flush, on the end face of first tube body (7) in axial direction
It is connected with row's clip-connecting rod (9), the second tube body (8) direction the first tube body (7) side corresponds on end face in axial direction
It offers blocked hole (10), the clip-connecting rod (9) is connected in blocked hole (10).
3. the steel pipe buried in advance part according to claim 2 based on assembled architecture wallboard, it is characterised in that: second pipe
Be equipped on body (8) screw rod (11), the screw rod (11) be located at one end in the first tube body (7) and the second tube body (8) be equipped with support
The abutting block (12) on the outside of pipeline (3) is touched, the end of the screw rod (11), which is rotatably connected on, to be pushed against on block (12), the screw rod
(11) it is threaded on nut (13), the nut (13) is rotatably connected on the outside of the second tube body (8).
4. the steel pipe buried in advance part according to claim 3 based on assembled architecture wallboard, it is characterised in that: second pipe
Cross section is enclosed on the outer wall of body (8) for the elastic shell (14) of Contraband shape, along length side on the outer wall of second tube body (8)
It to offering card slot (15), is connected with fixture block (16) on the inner sidewall of the elastic shell (14), the fixture block (16) is connected to
In card slot (15).
5. the steel pipe buried in advance part according to claim 2 based on assembled architecture wallboard, it is characterised in that: first pipe
Body (7) is connected with dovetails (17) away from the side of the second tube body (8), and the dovetails (17) are embedded in wallboard (1).
6. the steel pipe buried in advance part according to claim 2 based on assembled architecture wallboard, it is characterised in that: first pipe
Fire protection flame retarding layer (18) is installed on the lateral wall of body (7) and the second tube body (8).
7. the steel pipe buried in advance part according to claim 6 based on assembled architecture wallboard, it is characterised in that: the fire prevention resistance
Firing layer (18) is fire protection flame retarding layer made of flame retardant rubber.
8. it is a kind of as described in claim 1-7 any one based on the steel pipe buried in advance part of assembled architecture wallboard and its installation side
Method, which comprises the following steps:
S1, the corresponding splicing of two adjacent wallboards (1) is built together, and steering tube (5) correspondence is connected to adjacent two
The outside of the first tube body (7) of a wallboard (1)；
S2, pipeline (3) is then fed through the first tube body (7) and steering tube (5) and the end of a thread is reserved in wire box (6), so that
Pipeline (3) along wallboard (1) lay, then by the second tube body (8) blocked hole (10) and the first tube body (7) on clip-connecting rod
(9) correspondence is connected together, and turns nut (13), moves to the position of screw rod (11), contradicts until pushing against block (12)
In the outside of pipeline (3)；
S3, finally the diameter of the opening of elastic shell (14) broken into two with one's hands, so that the corresponding card of the fixture block (16) on elastic shell (14)
It connects in the card slot (15) on the second tube body (8), so that elastic shell (14) is wrapped in the periphery of the second tube body (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910678352.5A CN110445073B (en) | 2019-07-25 | 2019-07-25 | Pipeline embedded part based on assembly type building wallboard and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910678352.5A CN110445073B (en) | 2019-07-25 | 2019-07-25 | Pipeline embedded part based on assembly type building wallboard and installation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110445073A true CN110445073A (en) | 2019-11-12 |
| CN110445073B CN110445073B (en) | 2020-08-07 |
Family
ID=68431607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910678352.5A Active CN110445073B (en) | 2019-07-25 | 2019-07-25 | Pipeline embedded part based on assembly type building wallboard and installation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110445073B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994507A (en) * | 2019-11-19 | 2020-04-10 | 承庚机械科技(上海)有限公司 | Make things convenient for cable retaining member of dismouting |
| CN112177223A (en) * | 2020-09-29 | 2021-01-05 | 福建万山水利水电设计有限公司 | Pre-buried electric pipeline system of prefabricated building |
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| CN201038681Y (en) * | 2006-05-09 | 2008-03-19 | 陈启星 | Wiring slot pre-embedded in wall back of skirt line |
| CN201753492U (en) * | 2010-08-06 | 2011-03-02 | 艾博科建筑设备设计（深圳）有限公司 | Building chase |
| CN205646702U (en) * | 2016-04-05 | 2016-10-12 | 成都川路塑胶集团有限公司 | Cast -in -place pre -buried tube seat |
| CN206650383U (en) * | 2017-04-19 | 2017-11-17 | 无锡工艺职业技术学院 | A kind of cable protection pipe |
| CN206790039U (en) * | 2017-04-27 | 2017-12-22 | 中国水利水电第三工程局有限公司 | A kind of wall line box device |
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2019
- 2019-07-25 CN CN201910678352.5A patent/CN110445073B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201038681Y (en) * | 2006-05-09 | 2008-03-19 | 陈启星 | Wiring slot pre-embedded in wall back of skirt line |
| CN201753492U (en) * | 2010-08-06 | 2011-03-02 | 艾博科建筑设备设计（深圳）有限公司 | Building chase |
| CN205646702U (en) * | 2016-04-05 | 2016-10-12 | 成都川路塑胶集团有限公司 | Cast -in -place pre -buried tube seat |
| CN206650383U (en) * | 2017-04-19 | 2017-11-17 | 无锡工艺职业技术学院 | A kind of cable protection pipe |
| CN206790039U (en) * | 2017-04-27 | 2017-12-22 | 中国水利水电第三工程局有限公司 | A kind of wall line box device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994507A (en) * | 2019-11-19 | 2020-04-10 | 承庚机械科技(上海)有限公司 | Make things convenient for cable retaining member of dismouting |
| CN112177223A (en) * | 2020-09-29 | 2021-01-05 | 福建万山水利水电设计有限公司 | Pre-buried electric pipeline system of prefabricated building |
| CN112177223B (en) * | 2020-09-29 | 2021-08-20 | 福建万山水利水电设计有限公司 | Pre-buried electric pipeline system of prefabricated building |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110445073B (en) | 2020-08-07 |
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