CN108457483A - A kind of multifunctional universal pre-embedded device and application method - Google Patents
A kind of multifunctional universal pre-embedded device and application method Download PDFInfo
- Publication number
- CN108457483A CN108457483A CN201810517178.1A CN201810517178A CN108457483A CN 108457483 A CN108457483 A CN 108457483A CN 201810517178 A CN201810517178 A CN 201810517178A CN 108457483 A CN108457483 A CN 108457483A
- Authority
- CN
- China
- Prior art keywords
- upright bar
- pedestal
- buried
- multifunctional universal
- railing
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
- E04G21/3252—Protections, e.g. cover, caps, against impaling on starter reinforcement bars
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention provides a kind of multifunctional universal pre-embedded devices, including pedestal and upright bar, the pedestal is convex annular mesa-shaped, the chassis interior is annular groove, the base bottom is equipped with metric system internal thread, Internal Pipe Thread is equipped in the annular groove, the upright bar is temporary protection railing upright bar or decorative railing upright bar, bottom is equipped with external pipe thread, the pedestal can be individually pre-buried, can also be pre-buried together with guard rail upright bar, further include fixing bolt when individually pre-buried, further includes demoulding adhesive tape when pre-buried together.Multifunctional universal pre-embedded device of the present invention other than it can do provisional protection upright bar mounting seat in the construction process, after main body construction is completed, provisional protection upright bar is removed, which is also used as decorative railing upright bar mounting seat or other decoration mounting seats, in the construction process, using multifunctional universal pre-embedded device of the present invention, it is possible to reduce construction link and professional, optimized construction procedure, construction cost is reduced, green construction requirement is met.
Description
[technical field]
Pre-embedded device field more particularly to a kind of multifunctional universal pre-embedded device in being put into practice the present invention relates to construction project.
[background technology]
In engineering construction practice, as architecture construction height constantly increases, according to safe construction code requirement,
It needs that temporary guard rail is installed to " four mouthful five is faced side " position, to eliminate safe hidden trouble." four mouthfuls " refer to the stair in construction
When the flooring of mouth, lift port, reserved opening, passway, " five face " project under construction faces, roofing faces when, balcony faces, hatchway
Face when, foundation pit faces, they be in all personnel's construction operation often in contact with region, and the key portion that is prone to accidents
Position, the security protection work for carrying out " four mouthful five is faced side " are to ensure an important link of construction safety.Decoration construction process
In, staircase, alien invasion be the position for landing glass or French window, wall height less than 1.15 meters face side and hole,
Balcony etc. is required for installation decoration guard rail.
It needs to use electric impact drill when traditional temporary guard rail upright bar installation, scene will be equipped with temporary electricity box, need multiplexing kind
Cooperation.Due to largely using expansion bolt, electric impact drill to be possible to damage structure reinforcing bars.Expansion bolt be it is disposable, no
Meet the industrial policy that green construction saves material；And it needs to cut expanding screw using oxyacetylene metal-cutting when the upright bar dismounting of tradition temporary guard rail
Bolt needs to handle construction site and gets angry formality.If missing expansion bolt not cut off, it is hidden to leave safety to subsequent construction
Suffer from.Traditional temporary guard rail upright bar installation is cumbersome for installation without built-in fitting；Traditional decoration guardrail upright pole is equipped with built-in fitting, but pre-
Embedded part does not combine organically with the provisional protection facility during main body construction；The two does not have versatility, material synthesis
Utilization rate is low, does not meet the trend of green construction requirement.
The present invention is directed to stair, faces side, the installation of hole protective fence, is goed deep into the fixation of protective equipment upright bar
Research, propose a kind of general pre-buried device.Multifunctional universal pre-embedded device of the present invention is faced in addition to that can do in the construction process
When protective upright rod mounting seat outside, after main body construction is completed, remove provisional protection upright bar, which is also used as filling
Railing upright bar mounting seat or other decoration mounting seats are adornd, meets the requirement of green construction, improves the synthesis of material
Utilization rate reduces cost.
[invention content]
The task of the present invention is the deficiencies in the prior art are solved, a kind of multifunctional universal pre-embedded device is provided, on the other hand
The installation and application of the device is provided.
Present invention employs following technical solutions：
A kind of multifunctional universal pre-embedded device, including pedestal and upright bar, the pedestal is convex annular mesa-shaped, in the pedestal
Portion is annular groove, and the base bottom is equipped with metric system internal thread, is equipped with Internal Pipe Thread in the annular groove, the upright bar is
Temporary protection railing upright bar or decorative railing upright bar, bottom are equipped with external pipe thread, and the pedestal can be individually pre-buried, can also be with
Guard rail upright bar is pre-buried together, further includes fixing bolt when individually pre-buried, further includes demoulding adhesive tape when pre-buried together.
Further, the pedestal is connected with upright bar is connected using pipe screw thread mode, normal according to construction site temporary facility
It is with steel pipe：48 wall thickness 3.6mm of outer diameter φ, process pipe screw thread when select G1-1/2 standards tooth away from.
Further, the pedestal can be used as temporary protection railing upright bar mounting seat, and type of protection includes stair protection,
Lift port protects and edge protection, is also used as decorative railing upright bar mounting seat or other decoration mounting seats.When
When decorative railing upright bar outer diameter is differed with temporary protection railing upright bar outer diameter, the pre-buried pedestal of multifunctional universal further includes filling out
Fill concrete, hexagon socket head cap screw, tube sealing head steel plate and welding position.
Further, the pre-buried pedestal of the multifunctional universal is also used as elevator cage installation.Pacify as elevator cage
When dress, the pre-buried pedestal of multifunctional universal further includes sill and sill fixing bolt.
Further, it is additionally provided with protection cap after the pedestal is pre-buried to be protected, upright bar is equipped with external pipe thread protection and packs into
Row protection.
A kind of application method of multifunctional universal pre-embedded device, comprises the steps of：
Step 1, pedestal is pre-buried, fixed in mould lining out after Site Template props up according to the pre-buried figure in the pre-buried position of pedestal
Position, position location is fixed on during assembling reinforcement by Universal base.It, can also be by upright bar according to anti-if conditions permit
Shield requires to be mounted on the base to be embedded to together, notices that upright bar and pedestal junction need to wind demoulding adhesive tape, to facilitate upright bar to tear open
It removes.PC parts are embedded in pre-fabricated factory progress, can be with design specialized pedestal stationary fixture；
Step 2, casting concrete is fixed；
Step 3, temporary protection railing upright bar is installed, and after the concrete solidifying phase reaches, is found pre-buried pedestal and is cleaned out
Upright bar with pipe screw thread is directly screwed in pre-buried pedestal by chassis interior sundries, according still further to requiring installation whippletree and skirting board and peace
The whole network, it is directly pre-buried after being connected if it is upright bar and pedestal, after the concrete solidifying phase reaches, check whether upright bar is secured,
After meeting the requirements, whippletree and skirting board and safety net are installed；
Step 4, decorative railing upright bar is installed, when decorative railing upright bar outer diameter is identical as temporary protection railing upright bar outer diameter,
Mounting means is as temporary protection railing upright bar mounting means, when outer diameter differs, first puts tube sealing head steel plate with holes
Enter in decorative railing upright bar end, reserve welding surplus, is welded tube sealing head steel plate and upright bar in inside pipe wall with argon arc welding；Then
Hexagon socket head cap screw is put into the decorative railing upright bar for welding tube sealing head steel plate with holes；Then by the dress equipped with hexagon socket head cap screw
Decorations railing upright bar is put into pre-buried pedestal, and hexagon socket head cap screw is tightened；It finally will be between decorative railing upright bar and pre-buried pedestal
It is tamped with fill concrete in gap.
Wherein, the necessary accurate positioning of pedestal in step 1, axial vertical with architectural plane, multiple pre-buried base axis are necessary
On the same line.
The invention has the advantages that：
Multifunctional universal pre-embedded device of the present invention other than it can do provisional protection upright bar mounting seat in the construction process,
After main body construction is completed, provisional protection upright bar is removed, which is also used as decorative railing upright bar mounting seat, or
Other decoration mounting seats of person, in the construction process, using multifunctional universal pre-embedded device of the present invention, it is possible to reduce construction ring
Section and professional, optimized construction procedure reduce construction cost, meet green construction requirement.
[description of the drawings]
Fig. 1 is the base schematic diagram of the embodiment of the present invention.
Fig. 2 is the upright bar schematic diagram of the embodiment of the present invention.
Fig. 3 is the independent pre-buried schematic diagram of pedestal of the embodiment of the present invention.
Fig. 4 is the pedestal and upright bar pre-buried schematic diagram together of the embodiment of the present invention.
Fig. 5 is the type of protection schematic diagram of the embodiment of the present invention.
Fig. 6 is that decorative railing upright bar outer diameter of the present invention installs pre-buried signal when being differed with temporary protection railing upright bar outer diameter
Figure.
Fig. 7 is elevator cage scheme of installation of the present invention.
Fig. 8 is pedestal visor scheme of installation of the present invention.
Fig. 9 is upright bar external screw thread protective case scheme of installation of the present invention.
Wherein, 1 is pedestal, and 2 be upright bar, and 3 be fixing bolt, and 4 be demoulding adhesive tape, 11 is annular groove, 12 is inner tube spiral shell
Line, 13 are metric system internal thread, and 21 be external pipe thread, 51 be fill concrete, 52 be hexagon socket head cap screw, 53 be tube sealing head steel plate,
54 be welding position, 61 is sill, 62 is sill fixing bolt, 7 be protection cap, and 8 be external pipe thread protective case.
[specific implementation mode]
In order to keep the technological means that the present invention realizes clear, the present invention is further explained below in conjunction with the accompanying drawings,
A kind of multifunctional universal pre-embedded device picture 1-4, including pedestal 1 and upright bar 2, pedestal 1 are convex annular mesa-shaped,
1 inside of pedestal is annular groove 11, and 1 bottom of pedestal is equipped with metric system internal thread 13, Internal Pipe Thread 12, upright bar are equipped in annular groove
2 be temporary protection railing upright bar or decorative railing upright bar, and bottom is equipped with external pipe thread 21, and wherein pedestal 1 can be individually pre-buried,
Can be pre-buried together with guard rail upright bar 2, further include fixing bolt 3 when individually pre-buried, further includes demoulding glue when pre-buried together
Band 4.
Pedestal is connected with upright bar to be connected using pipe screw thread mode, is with steel pipe often according to construction site temporary facility：Outer diameter
48 wall thickness 3.6mm of φ, process pipe screw thread when select G1-1/2 standards tooth away from.
As shown in figure 5, pedestal 1 can be used as temporary protection railing upright bar mounting seat, type of protection includes stair protection, electricity
Ladder way protects and edge protection, is also used as decorative railing upright bar mounting seat or other decoration mounting seats.Such as figure
Shown in 6 when decorative railing upright bar outer diameter and temporary protection railing upright bar outer diameter differ, the pre-buried pedestal of multifunctional universal
Further include fill concrete 51, hexagon socket head cap screw 52, tube sealing head steel plate 53 and welding position 54.
As shown in fig. 7, the pre-buried pedestal of multifunctional universal is also used as elevator cage installation.It is installed as elevator cage
When, the pre-buried pedestal of multifunctional universal further includes sill 61 and sill fixing bolt 62.
It is protected as shown in figure 8, being additionally provided with protection cap 7 after pedestal is pre-buried, upright bar is carried out equipped with external pipe thread protective case 8
Protection.
As shown in figs. 1-7, a kind of application method of multifunctional universal pre-embedded device, comprises the steps of：
Step 1, pedestal is pre-buried, fixed in mould lining out after Site Template props up according to the pre-buried figure in the pre-buried position of pedestal
Position, position location is fixed on during assembling reinforcement by Universal base.It, can also be by upright bar according to anti-if conditions permit
Shield requires to be mounted on the base to be embedded to together, notices that upright bar and pedestal junction need to wind demoulding adhesive tape, to facilitate upright bar to tear open
It removes.PC parts are embedded in pre-fabricated factory progress, can be with design specialized pedestal stationary fixture；
Step 2, casting concrete is fixed；
Step 3, temporary protection railing upright bar is installed, and after the concrete solidifying phase reaches, is found pre-buried pedestal and is cleaned out
Upright bar with pipe screw thread is directly screwed in pre-buried pedestal by chassis interior sundries, according still further to requiring installation whippletree and skirting board and peace
The whole network, it is directly pre-buried after being connected if it is upright bar and pedestal, after the concrete solidifying phase reaches, check whether upright bar is secured,
After meeting the requirements, whippletree and skirting board and safety net are installed；
Step 4, decorative railing upright bar is installed, when decorative railing upright bar outer diameter is identical as temporary protection railing upright bar outer diameter,
Mounting means is as temporary protection railing upright bar mounting means, when outer diameter differs, first puts tube sealing head steel plate with holes
Enter in decorative railing upright bar end, reserve welding surplus, is welded tube sealing head steel plate and upright bar in inside pipe wall with argon arc welding；Then
Hexagon socket head cap screw is put into the decorative railing upright bar for welding tube sealing head steel plate with holes；Then by the dress equipped with hexagon socket head cap screw
Decorations railing upright bar is put into pre-buried pedestal, and hexagon socket head cap screw is tightened；It finally will be between decorative railing upright bar and pre-buried pedestal
It is tamped with fill concrete in gap.
Specifically, the necessary accurate positioning of pedestal in step 1, axial vertical with architectural plane, multiple pre-buried base axis must
It must be on the same line.
Above example is merely used to help understand the method and its core concept of the present invention；Meanwhile for this field
Those skilled in the art, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, to sum up,
The content of the present specification should not be construed as limiting the invention.
Claims (7)
1. a kind of multifunctional universal pre-embedded device, which is characterized in that including pedestal and upright bar, the pedestal is convex annular mesa-shaped,
The chassis interior is annular groove, and the base bottom is equipped with metric system internal thread, Internal Pipe Thread is equipped in the annular groove,
The upright bar is temporary protection railing upright bar or decorative railing upright bar, and bottom is equipped with external pipe thread, and the pedestal can be individually pre-
It buries, can also be pre-buried together with guard rail upright bar, further include fixing bolt when individually pre-buried, further includes demoulding when pre-buried together
Adhesive tape.
2. a kind of multifunctional universal pre-embedded device according to claim 1, which is characterized in that the pedestal is connected with upright bar
It is connected using pipe screw thread mode, is with steel pipe often according to construction site temporary facility：48 wall thickness 3.6mm of outer diameter φ process pipe spiral shell
When line select G1-1/2 standards tooth away from.
3. a kind of multifunctional universal pre-embedded device according to claim 1, which is characterized in that the pedestal can be used as temporarily
Guard rail upright bar mounting seat, type of protection include stair protection, lift port protection and edge protection, are also used as decorating
Railing upright bar mounting seat or other decoration mounting seats.When decorative railing upright bar outer diameter and temporary protection railing upright bar
When outer diameter differs, the pre-buried pedestal of multifunctional universal further includes fill concrete, hexagon socket head cap screw, tube sealing head steel plate and
Welding position.
4. a kind of multifunctional universal pre-embedded device according to claim 1, which is characterized in that the multifunctional universal is pre-buried
Pedestal is also used as elevator cage installation.When being installed as elevator cage, the pre-buried pedestal of multifunctional universal further includes ground
Bank and sill fixing bolt.
5. a kind of multifunctional universal pre-embedded device according to claim 1, which is characterized in that also set after the pedestal is pre-buried
There is protection cap to be protected, upright bar is protected equipped with external pipe thread protective case.
6. a kind of application method of multifunctional universal pre-embedded device, which is characterized in that comprise the steps of：
Step 1, pedestal is pre-buried, according to the pre-buried figure in the pre-buried position of pedestal, after Site Template props up, is positioned in mould lining out,
Universal base is fixed on position location during assembling reinforcement.It, can also be by upright bar according to protection if conditions permit
It is embedded to together it is required that being mounted on the base, notices that upright bar and pedestal junction need to wind demoulding adhesive tape, to facilitate upright bar to remove.
PC parts are embedded in pre-fabricated factory progress, can be with design specialized pedestal stationary fixture；
Step 2, casting concrete is fixed；
Step 3, temporary protection railing upright bar is installed, and after the concrete solidifying phase reaches, is found pre-buried pedestal and is cleaned out pedestal
Upright bar with pipe screw thread is directly screwed in pre-buried pedestal by internal sundries, according still further to requiring installation whippletree and skirting board and safety net,
It is directly pre-buried after being connected if it is upright bar and pedestal, after the concrete solidifying phase reaches, check whether upright bar is secured, conforms to
After asking, whippletree and skirting board and safety net are installed；
Step 4, decorative railing upright bar is installed, when decorative railing upright bar outer diameter is identical as temporary protection railing upright bar outer diameter, installation
Mode is as temporary protection railing upright bar mounting means, and when outer diameter differs, tube sealing head steel plate with holes is put into dress first
It adorns in railing upright bar end, reserves welding surplus, welded tube sealing head steel plate and upright bar in inside pipe wall with argon arc welding；It then will be interior
Hex bolts is put into the decorative railing upright bar for welding tube sealing head steel plate with holes；Then by the decoration column equipped with hexagon socket head cap screw
Bar upright bar is put into pre-buried pedestal, and hexagon socket head cap screw is tightened；Finally by the gap between decorative railing upright bar and pre-buried pedestal
It is tamped with fill concrete.
7. the application method of multifunctional universal pre-embedded device according to claim 4, which is characterized in that pedestal in step 1
Necessary accurate positioning, axial vertical with architectural plane, multiple pre-buried base axis must be on the same line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810517178.1A CN108457483A (en) | 2018-05-25 | 2018-05-25 | A kind of multifunctional universal pre-embedded device and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810517178.1A CN108457483A (en) | 2018-05-25 | 2018-05-25 | A kind of multifunctional universal pre-embedded device and application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108457483A true CN108457483A (en) | 2018-08-28 |
Family
ID=63215885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810517178.1A Pending CN108457483A (en) | 2018-05-25 | 2018-05-25 | A kind of multifunctional universal pre-embedded device and application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108457483A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158880A (en) * | 2019-04-24 | 2019-08-23 | 苏州金螳螂建筑装饰股份有限公司 | A kind of easy-to-mount finished product formula crystal glass railing mounting structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010248796A (en) * | 2009-04-16 | 2010-11-04 | Smctech Co Ltd | Concrete structure and support structure supported by the same |
| JP2012255252A (en) * | 2011-06-07 | 2012-12-27 | Toyota T & S Kensetsu Kk | Sheath pipe for concrete member and method of manufacturing concrete member in which the same is embedded |
| CN203867211U (en) * | 2014-05-30 | 2014-10-08 | 浙江省东阳第三建筑工程有限公司 | Base of temporary protection railing of cast-in-place reinforced concrete stairs |
| CN105003036A (en) * | 2015-06-26 | 2015-10-28 | 南京长江都市建筑设计股份有限公司 | Prefabricated rail and its manufacturing method |
| CN208668993U (en) * | 2018-05-25 | 2019-03-29 | 深圳市建设（集团）有限公司 | A kind of multifunctional universal pre-embedded device |
-
2018
- 2018-05-25 CN CN201810517178.1A patent/CN108457483A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010248796A (en) * | 2009-04-16 | 2010-11-04 | Smctech Co Ltd | Concrete structure and support structure supported by the same |
| JP2012255252A (en) * | 2011-06-07 | 2012-12-27 | Toyota T & S Kensetsu Kk | Sheath pipe for concrete member and method of manufacturing concrete member in which the same is embedded |
| CN203867211U (en) * | 2014-05-30 | 2014-10-08 | 浙江省东阳第三建筑工程有限公司 | Base of temporary protection railing of cast-in-place reinforced concrete stairs |
| CN105003036A (en) * | 2015-06-26 | 2015-10-28 | 南京长江都市建筑设计股份有限公司 | Prefabricated rail and its manufacturing method |
| CN208668993U (en) * | 2018-05-25 | 2019-03-29 | 深圳市建设（集团）有限公司 | A kind of multifunctional universal pre-embedded device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158880A (en) * | 2019-04-24 | 2019-08-23 | 苏州金螳螂建筑装饰股份有限公司 | A kind of easy-to-mount finished product formula crystal glass railing mounting structure |
| CN110158880B (en) * | 2019-04-24 | 2024-04-16 | 苏州金螳螂建筑装饰股份有限公司 | Finished product type crystal glass railing mounting structure convenient to dismouting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205077845U (en) | Building core section of thick bamboo well hydraulic pressure intelligence operation scaffold that climbs | |
| CN206571130U (en) | A kind of outside the pale of civilization protective frame of sizing for Fabricated balcony | |
| CN208668993U (en) | A kind of multifunctional universal pre-embedded device | |
| CN108457483A (en) | A kind of multifunctional universal pre-embedded device and application method | |
| CN110886488A (en) | Intelligent integrated high-rise building machine | |
| CN208702119U (en) | A kind of exterior wall temporary support device of skyscraper window | |
| CN107100361A (en) | Inner support aluminum dipping form device and its installation method are climbed outside a kind of | |
| CN203924662U (en) | A kind of attaching integral lifting scaffold | |
| CN210508129U (en) | Integrated stair protective rail with decorative structure | |
| CN206503350U (en) | A kind of safety rope fixing point | |
| JP3149454U (en) | Temporary column for handrail | |
| CN207846427U (en) | A kind of upper and lower walkway of assembled foundation pit | |
| CN107642241A (en) | The stress supporting construction and construction method of a kind of prefabricated balcony | |
| CN205348816U (en) | Face limit protector and pole setting thereof | |
| CN212478487U (en) | Construction platform for building construction | |
| CN205348815U (en) | Face limit protector and pole setting thereof | |
| CN210508463U (en) | Adjustable door and window opening protection structure | |
| CN207080169U (en) | A kind of wall attaching parts for bridge construction safety climbing ladder | |
| CN209538554U (en) | A kind of guardrail that novel stair are convenient for loading and unloading | |
| CN217949830U (en) | Can have enough to meet need elevartor shaft protector | |
| CN213674732U (en) | Concrete pre-buried formula locating component | |
| CN216865775U (en) | Install type stair guardrail structure fast | |
| CN212176366U (en) | Hollow type railing column bottom mounting device | |
| CN220167176U (en) | Novel bridge embedded part | |
| CN211286357U (en) | Mounting structure of railing |
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 |