CN109853970A - Building piping installation equipment and application method - Google Patents
Building piping installation equipment and application method Download PDFInfo
- Publication number
- CN109853970A CN109853970A CN201910248522.6A CN201910248522A CN109853970A CN 109853970 A CN109853970 A CN 109853970A CN 201910248522 A CN201910248522 A CN 201910248522A CN 109853970 A CN109853970 A CN 109853970A
- Authority
- CN
- China
- Prior art keywords
- piping
- connecting hole
- construction stage
- mark
- hole
- 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
Links
- 238000009434 installation Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims description 12
- 238000007789 sealing Methods 0.000 claims abstract description 56
- 238000010276 construction Methods 0.000 claims abstract description 54
- 230000013011 mating Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 5
- 238000012805 post-processing Methods 0.000 abstract description 4
- 238000002789 length control Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Supports For Pipes And Cables (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The present invention relates to building fields, especially building piping installation equipment, comprising: connection unit, connection unit are formed with channel, and the both ends in channel are respectively equipped with the first connecting hole and the second connecting hole;The piping of first connecting hole and the first construction stage are connected, and the piping of the second connecting hole and the second construction stage are connected;Sealing unit, sealing unit setting connect hole site second, for sealing the second connecting hole in the first construction stage.The present invention changes the state of the art that traditional vertical piping is left to floor outer surface in advance, saves piping simmering and bending workflow, easy for construction, solves the problems, such as that vertical spool cannot be fixed very well;The problems such as considering vertical section piping length when solving set aside pre-embedded, avoids because piping length controls the trouble of bad post-processing etc., effectively prevents vertically being piped the problem of falling into the sundries such as concrete;It solves the problems, such as vertically to be piped to be easy to damage and fracture, saved cost.
Description
Technical field
The present invention relates to building fields, especially building piping installation equipment and application method.
Background technique
Electrically vertically piping is that pipeline is left to floor outer surface in advance to traditional set aside pre-embedded, and plastics are used after concreting
Lid carries out spool closure, and entering sundries to prevent falling stop influences later period dredging threading;It is a kind of simultaneously to prevent spool by the damage that fractures
Mode is to follow closely wooden case above wire box to be protected, another mode is to be covered spool with PVC casing, is poured inside PVC
It builds concrete mortar and carries out spool provisional protection.But there are more drawbacks for existing construction and installation mode, influence later period piping peace
Packing quality and efficiency, cumbersome and be unfavorable for the safety-related work of site operation, it is as follows specifically to there is drawback: 1, spool need to be into
Row simmering and bending processing, descends waste of manpower, material resources to a certain degree, it has not been convenient to construct, reduce integral construction efficiency;2, vertical section piping needs
Consider length, if controlling bad length, post-processing trouble;3, insecure, concrete construction is fixedly mounted in vertical spool
Crooked damage is be easy to cause in journey;Spool is left to floor outer surface in advance, is easy to fall into the sundries such as concrete, spool is easy to be damaged
It badly or fractures, is repaired after damage very troublesome;4, existing spool guard technology need to additionally use flitch, PVC or concrete mortar
Equal materials, add additional cost, and safeguard measure cannot ensure, while increasing construction rubbish later period cleaning work;
5, ground is all raised in the safeguard procedures done that are vertically piped being reserved in outside floor, be easy to cause knocking for personnel and article
It touches, has a certain impact to site safety;6, what the later period was vertically piped because the reasons such as design will cause sometimes is discarded, to discarded perpendicular
Processing to piping is pretty troublesome;7, the piping process of second of construction stage of later period need to additionally carry out related adjustment processing, construction
It is inconvenient for operation.
Summary of the invention
The present invention provides buildings to be piped installation equipment and application method, changes traditional vertical piping and is left to outside floor in advance
The state of the art on surface saves piping simmering and bending workflow, easy for construction, and solve that vertical spool cannot fix very well asks
Topic;The problems such as considering vertical section piping length when solving set aside pre-embedded is avoided because piping length controls bad post-processing
Deng trouble, while avoid the control of vertical segment length it is bad caused by waste of material phenomena such as;It effectively prevents vertically being piped
The problem of falling into the sundries such as concrete;It solves the problems, such as vertically to be piped to be easy to damage and fracture, cost has been saved, so that protection is arranged
It applies to obtain effective guarantee;Solve the problems, such as that the later period leads to processing trouble because being vertically piped to discard caused by the reasons such as design;It avoids
The possibility that traditional vertical piping technology bring personnel and article collide with has certain promotion to site safety construction, solves
It has determined problems of the prior art.
Used technical solution is the present invention to solve above-mentioned technical problem: building piping installation equipment, comprising:
Connection unit, the connection unit are formed with channel, and the both ends in the channel are respectively equipped with the first connecting hole and
Two connecting holes;First connecting hole and the piping of the first construction stage are connected, second connecting hole and the second construction stage
Piping be connected;
Sealing unit, the sealing unit setting is in second connection hole site, for sealing in the first construction stage
Second connecting hole.
Preferably, plane where first connecting hole and the second connecting hole at the channel both ends, which is substantially mutually perpendicular, sets
It sets, to connect the piping of the first construction stage substantially horizontal setting and the piping of the second construction stage generally vertical setting.
Preferably, first connecting hole and the second connecting hole are equipped with the internal screw thread for connecing and being connected with pipe, the pipe connect and
The piping is connected.
Preferably, the sealing unit includes the first sealing cover matched with second connecting hole.
It preferably, further include mark unit, the mark unit is connected with the connection unit, for indicating the second construction
Stage connects the piping model of second connecting hole.
Preferably, the mark unit includes the mark rod being connected with connection unit screw thread, and the connection unit is equipped with mark
Know lever attachment hole.
Preferably, the mark lever attachment hole and the second connecting hole are located at the same plane position on the connection unit surface
It sets, the sealing unit further includes the second sealing cover, and second sealing cover is provide with the mark lever attachment hole and the first sealing
Lid.
Preferably, the connection unit surface is equipped with and the second sealing cover card slot in mating connection.
Preferably, protection tube, the protection tube and the first sealing cover phase are arranged with outside the mark rod
Even.
The application method of building piping installation equipment, comprising the following steps:
S1: in the first construction stage, the first connecting hole of connection unit connects through pipe to be connected with the piping in civil engineering, and according to
The connection request of second construction stage piping determines the position of the second connecting hole;
S2: being sealed the second connecting hole using the first sealing cover, the second sealing cover card be set in card slot, completes to block behaviour
Make;
S3: mark rod is installed in mark lever attachment hole, and is arranged protection tube;
S4: in the second construction stage, piping and the second connecting hole are matched according to protection tube and/or mark rod
It is right;
S5: opening the second sealing cover and the first sealing cover, piping be connected to the second connection hole site, removes mark rod,
Complete the piping work of the second construction stage.
The beneficial effect of the present invention using the above structure is the skill for changing traditional vertical piping and being left to floor outer surface in advance
Art status saves piping simmering and bending workflow, easy for construction, solves the problems, such as that vertical spool cannot be fixed very well;It solves
The problems such as vertical section piping length is considered when set aside pre-embedded, avoids because piping length controls the trouble of bad post-processing etc.,
Avoid simultaneously the control of vertical segment length it is bad caused by waste of material phenomena such as;It effectively prevents vertically being piped and falls into concrete
The problem of equal sundries;It solves the problems, such as vertically to be piped to be easy to damage and fracture, cost has been saved, so that safeguard measure obtains effectively
It ensures;Solve the problems, such as that the later period leads to processing trouble because being vertically piped to discard caused by the reasons such as design;It avoids traditional vertical
The possibility that piping technology bring personnel and article collide with has certain promotion to site safety construction.
Detailed description of the invention
Fig. 1 is the schematic perspective view after the first construction stage of the invention.
Fig. 2 is the explosive state schematic perspective view of Fig. 1.
Fig. 3 is the schematic perspective view after the second construction stage of the invention.
Fig. 4 is the explosive state schematic perspective view of Fig. 3.
Fig. 5 is the structural schematic diagram of connection unit of the invention.
Fig. 6 is the structural schematic diagram of the perspective of Fig. 5.
In figure, 1, connection unit;2, channel;3, the first connecting hole;4, the second connecting hole;5, it is piped;6, pipe connects;7, tight
Fixing bolt;8, the first sealing cover;9, mark rod;10, lever attachment hole is identified;11, the second sealing cover;12, card slot;13, plastics are protected
Pillar;14, ground wire connecting hole is bridged;15, through-hole;16, reinforcing bar.
Specific embodiment
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this hair
It is bright to be described in detail.
As shown in figures 1 to 6, building piping installation equipment, comprising: connection unit 1, connection unit 1 are formed with channel 2, channel
2 both ends are respectively equipped with the first connecting hole 3 and the second connecting hole 4;First connecting hole 3 is connected with the piping 5 of the first construction stage,
Second connecting hole 4 is connected with the piping 5 of the second construction stage;Sealing unit, sealing unit are arranged in 4 position of the second connecting hole,
For sealing the second connecting hole 4 in the first construction stage.Connection unit specifically can choose connection box-like state, and this design changes
Traditional vertical piping is left to the state of the art of floor outer surface in advance, saves piping simmering and bending workflow, does not need to apply first
The work stage connects vertical section piping, easy for construction, is directly correspondingly connected with the peace of the second connecting hole 4 on box in the second construction stage
Pipe 5 is assembled, while being equipped with sealing unit the second connecting hole 4 on connection box can be blocked in the first construction stage
Protection avoids falling into subsequent 5 installation of piping of sundries influence, guarantees the quality of entire work progress piping installation.
In view of the specific requirement of construction, first connecting hole 3 and 4 place plane of the second connecting hole at 2 both ends of channel are substantially
On be arranged in a mutually vertical manner, it is generally perpendicular with the piping 5 and the second construction stage that connect the substantially horizontal setting of the first construction stage
The piping 5 being directly arranged.
First connecting hole 3 is equipped with the second connecting hole 4 and connects 6 internal screw threads being connected with pipe, and pipe connects 6 and is connected with piping 5.Pipe
6 are connect when being connected with piping 5, in order to further ensure the stability of 5 connection of piping, pipe connects 6 cooperation fastening bolts 7,
It is reinforced using 7 pairs of fastening bolt pipings 5.In addition, it is contemplated that connection box outer surfac and pipe connect 6 junctions and add washer
Sundries is further prevented to enter in channel 2.
Sealing unit includes the first sealing cover 8 matched with the second connecting hole 4.The second connecting hole of connection unit 4 is risen
To secondary plugging protective action, prevent from falling into the sundries such as concrete in work progress, it is later period easy cleaning sundries, easy to disassemble,
And recoverable.
It further include mark unit, mark unit is connected with connection unit 1, for indicating that the second construction stage connection second connects
Connect 5 model of piping in hole 4.Mark unit can be used to identify 5 location informations of connection unit 1 and related piping, facilitate subsequent the
Two construction stages installation piping 5.
Mark unit includes the mark rod 9 being connected with 1 screw thread of connection unit, and connection unit 1 is equipped with mark lever attachment hole 10.
Mark rod 9 preferably uses harness cord threaded rod or steel nail, and mark rod bottom end preferably uses threaded connection effectively to be connect with connection unit
It is fixed;9 top of mark rod is preferably carved with the marking or posts correlated identities, so that the later period inquires 5 information of related piping.Mark rod 9 pushes up
End can be slightly higher than floor upper surface, and the later period can be left to the height of floor outer surface by appropriate adjustment mark rod 9 according to the actual situation in advance.
Mark lever attachment hole 10 and the second connecting hole 4 are located at the same plane position on 1 surface of connection unit, and sealing unit is also
Including the second sealing cover 11, the second sealing cover 11 is provide with mark lever attachment hole 10 and the first sealing cover 8.The master of second sealing cover 11
Wanting function is protected 9 connecting hole of mark rod, is carried out secondary protection to the second connecting hole 4, is prevented from falling into concrete etc. miscellaneous
Object;Second sealing cover, 11 geomery is preferably rationally adjusted according to the correlation piping information such as 5 sizes and floor cast-in-place concrete board thickness,
The second connecting hole 4 of cooperation is found when facilitating for the second construction stage.
1 surface of connection unit is equipped with and the second sealing cover 11 card slot 12 in mating connection.Second sealing cover for convenience
11 installing and dismounting, uses 12 socket joint technology of card slot herein, 12 size of card slot and related setting should meet the second sealing cover 11 with
Connection unit 1 is reliably fixed connection.Sealing cover bracket whether is added according further to actual needs.
It is arranged with protection tube 13 outside mark rod 9, protection tube 13 is connected with the first sealing cover 8.Protection tube
The related marking and mark also can be set in 13 tops, identifies correlation at this and is piped 5 information, is piped so that the second construction stage installed
5, while the later period being facilitated to recycle mark rod 9, to reduce project cost.
It is required according to practice of construction, connection unit 1 can be arranged to bridging ground wire connecting hole 14, according to the actual situation and set
Meter requires to be designed bridging ground wire connecting hole 14.The hole size is preferably more slightly larger than being grounded, if not using the hole, should there is stopple
It is covered.
Connection unit 1 is fixed for convenience, through-hole 15 is arranged in connection unit 1, can penetrate reinforcing bar 16 in through-hole 15
So that connection unit 1 and civil engineering bottom layer of the reinforcing steel network are fixedly connected, while through-hole 15 also can be used as the in a row of connection unit 1
Assembling (i.e. installation is expanded) connection uses.
The application method of building piping installation equipment, comprising the following steps:
S1: in the first construction stage, the first connecting hole 3 of connection unit 1 connects 6 through pipe and is connected with the piping 5 in civil engineering, and
The position of the second connecting hole 4 is determined according to the connection request of the second construction stage piping 5;Reinforcing bar 16 passes through the logical of connection unit 1
Behind hole 15 with civil engineering bottom layer of the reinforcing steel binding and fixing;After piping 5 and pipe connect 6 connections, fastening bolt 7 can be used further to reinforce;
S2: being sealed the second connecting hole 4 using the first sealing cover 8, and the second sealing cover 11 card is set in card slot 12, complete
At plugging operations;
S3: mark rod 9 is installed in mark lever attachment hole 10, and is arranged protection tube 13;
S4: in the second construction stage, according to protection tube 13 and/or 9 pairs of mark rod pipings 5 and the second connecting hole 4 into
Row pairing;
S5: the second sealing cover 11 and the first sealing cover 8 are opened, piping 5 is connected to 4 position of the second connecting hole, removes mark
Know bar 9, the piping 5 for completing for the second construction stage works.
Above-mentioned specific embodiment cannot function as limiting the scope of the invention, for the technology people of the art
For member, any alternate modification or transformation made to embodiment of the present invention are fallen within the scope of protection of the present invention.
Place is not described in detail by the present invention, is the well-known technique of those skilled in the art of the present technique.
Claims (10)
1. building piping installation equipment characterized by comprising
Connection unit, the connection unit are formed with channel, and the both ends in the channel are respectively equipped with the first connecting hole and second and connect
Connect hole;First connecting hole and the piping of the first construction stage are connected, and second connecting hole and the second construction stage match
Pipe is connected;
Sealing unit, the sealing unit setting is in second connection hole site, described in sealing in the first construction stage
Second connecting hole.
2. building piping installation equipment according to claim 1, which is characterized in that first connecting hole at the channel both ends
It is substantially mutually perpendicular setting with plane where the second connecting hole, to connect the piping of the first construction stage substantially horizontal setting
With the piping of the second construction stage generally vertical setting.
3. building piping installation equipment according to claim 2, which is characterized in that first connecting hole and the second connection
Hole is equipped with the internal screw thread for connecing and being connected with pipe, and the pipe connects to be connected with the piping.
4. building piping installation equipment according to any one of claims 1 to 3, which is characterized in that the sealing unit packet
Include the first sealing cover matched with second connecting hole.
5. building piping installation equipment according to claim 4, which is characterized in that further include mark unit, the mark
Unit is connected with the connection unit, for indicating that the second construction stage connected the piping model of second connecting hole.
6. building piping installation equipment according to claim 5, which is characterized in that the mark unit includes and connects single
The connected mark rod of first screw thread, the connection unit are equipped with mark lever attachment hole.
7. building piping installation equipment according to claim 6, which is characterized in that the mark lever attachment hole and second connects
Connecing the same plane position that hole is located at the connection unit surface, the sealing unit further includes the second sealing cover, and described second
Sealing cover is provide with the mark lever attachment hole and the first sealing cover.
8. building according to claim 7 piping installation equipment, which is characterized in that the connection unit surface is equipped with and the
Two sealing covers card slot in mating connection.
9. building piping installation equipment according to claim 7 or 8, which is characterized in that be arranged with modeling outside the mark rod
Expect protection pipe, the protection tube is connected with first sealing cover.
10. the application method of building piping installation equipment according to any one of claims 1 to 9, which is characterized in that including
Following steps:
S1: in the first construction stage, the first connecting hole of connection unit connects through pipe to be connected with the piping in civil engineering, and according to second
The connection request of construction stage piping determines the position of the second connecting hole;
S2: being sealed the second connecting hole using the first sealing cover, the second sealing cover card be set in card slot, and plugging operations are completed;
S3: mark rod is installed in mark lever attachment hole, and is arranged protection tube;
S4: in the second construction stage, piping and the second connecting hole are matched according to protection tube and/or mark rod;
S5: opening the second sealing cover and the first sealing cover, piping be connected to the second connection hole site, removes mark rod, completes
The piping work of second construction stage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910248522.6A CN109853970B (en) | 2019-03-29 | 2019-03-29 | Building piping installation equipment and use method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910248522.6A CN109853970B (en) | 2019-03-29 | 2019-03-29 | Building piping installation equipment and use method |
Publications (2)
Publication Number | Publication Date |
---|---|
CN109853970A true CN109853970A (en) | 2019-06-07 |
CN109853970B CN109853970B (en) | 2023-12-22 |
Family
ID=66902545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910248522.6A Active CN109853970B (en) | 2019-03-29 | 2019-03-29 | Building piping installation equipment and use method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109853970B (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1479847A (en) * | 2001-01-16 | 2004-03-03 | 曼弗雷德・阿尔莱 | Fire block conduit coupler |
JP3642525B1 (en) * | 2003-11-14 | 2005-04-27 | 協同バルブ商事株式会社 | Piping installation members and a set of piping installation members |
CN101247029A (en) * | 2008-03-27 | 2008-08-20 | 成都市第四建筑工程公司 | Construction method for installing wire pipe and wire box on the wall |
CN103562612A (en) * | 2011-11-11 | 2014-02-05 | 株式会社开滋Sct | Resin end-face butt joint, method for welding this joint, and piping member |
CN205985836U (en) * | 2016-08-31 | 2017-02-22 | 河南佳和高科电气设备股份有限公司 | Novel electric wire box for electronic box |
CN206053342U (en) * | 2016-08-31 | 2017-03-29 | 山西四建集团有限公司 | The T-shaped turning joint of pipe arrangement in honeycomb core cassette ceiling girt strip |
CN210067479U (en) * | 2019-03-29 | 2020-02-14 | 中建八局第一建设有限公司 | Building piping erection equipment |
CN212244736U (en) * | 2020-05-25 | 2020-12-29 | 李志鹏 | Anti-pollution filth bucket is used to gastroenterology |
-
2019
- 2019-03-29 CN CN201910248522.6A patent/CN109853970B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1479847A (en) * | 2001-01-16 | 2004-03-03 | 曼弗雷德・阿尔莱 | Fire block conduit coupler |
JP3642525B1 (en) * | 2003-11-14 | 2005-04-27 | 協同バルブ商事株式会社 | Piping installation members and a set of piping installation members |
CN101247029A (en) * | 2008-03-27 | 2008-08-20 | 成都市第四建筑工程公司 | Construction method for installing wire pipe and wire box on the wall |
CN103562612A (en) * | 2011-11-11 | 2014-02-05 | 株式会社开滋Sct | Resin end-face butt joint, method for welding this joint, and piping member |
CN205985836U (en) * | 2016-08-31 | 2017-02-22 | 河南佳和高科电气设备股份有限公司 | Novel electric wire box for electronic box |
CN206053342U (en) * | 2016-08-31 | 2017-03-29 | 山西四建集团有限公司 | The T-shaped turning joint of pipe arrangement in honeycomb core cassette ceiling girt strip |
CN210067479U (en) * | 2019-03-29 | 2020-02-14 | 中建八局第一建设有限公司 | Building piping erection equipment |
CN212244736U (en) * | 2020-05-25 | 2020-12-29 | 李志鹏 | Anti-pollution filth bucket is used to gastroenterology |
Also Published As
Publication number | Publication date |
---|---|
CN109853970B (en) | 2023-12-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109695247B (en) | Deep foundation pit temporary pipeline comprehensive arrangement system and construction method | |
CN103161313B (en) | Connection method of main reinforcement of constructional column of infilled wall and framed girder | |
CN103485537A (en) | Construction method and structure of embedded reinforcement of super high-rise horizontal secondary structure | |
CN209686856U (en) | Deep basal pit outer wall of basement steel tube fastener diagonal brace single side formwork system | |
CN209942071U (en) | Flashing joint structure for steel skeleton light plate roof and parapet wall | |
CN109853970A (en) | Building piping installation equipment and application method | |
CN206512866U (en) | Concealed installation Fire Hose backing apparatus | |
CN210067479U (en) | Building piping erection equipment | |
CN208685674U (en) | A kind of protective device of underground overlapping wall reinforcing bar connector | |
CN107060284A (en) | The pre-buried method of China Democratic National Construction Association's power electronic box and pre-buried structure | |
US20060096195A1 (en) | Devices and methods for protecting exposed pipe ends during construction | |
CN107366500A (en) | A kind of baffle device for water of corridor entrance | |
CN111236603A (en) | Comprehensive construction method for steel plate mesh overhanging scaffold | |
CN108661188A (en) | A kind of wall tie bar fastener inserts and construction method | |
CN104358466B (en) | A kind of module combined type communication tower | |
CN208965741U (en) | A kind of wall tie bar fastener inserts | |
CN209308379U (en) | A kind of driven hanging basket balance weight mechanism | |
CN207846906U (en) | A kind of prefabricated Reinforced Concrete Plate Stairs | |
CN203961323U (en) | Quick lap joint formula guard system | |
JP5251074B2 (en) | Repair method for reinforcing bars for concrete utility poles | |
CN217489581U (en) | Assembled safety belt fixing device | |
CN205713187U (en) | A kind of horizontal hole protective construction | |
CN205976148U (en) | Side fascia installation node | |
CN219344030U (en) | Pre-buried opposite-pulling screw device for lining wall | |
CN108952154A (en) | A kind of simple plugging device of vertical duct preformed hole and its construction method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |