CN108756201A - A kind of assembled overhanging holder and its assembly technology - Google Patents
A kind of assembled overhanging holder and its assembly technology Download PDFInfo
- Publication number
- CN108756201A CN108756201A CN201810534066.7A CN201810534066A CN108756201A CN 108756201 A CN108756201 A CN 108756201A CN 201810534066 A CN201810534066 A CN 201810534066A CN 108756201 A CN108756201 A CN 108756201A
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- Prior art keywords
- screw rod
- plate
- sliding block
- vertical
- end plate
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Classifications
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- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
- E04G5/045—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on profiles, e.g. I or H profiles
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Connection Of Plates (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
A kind of assembled overhanging holder of present invention offer and its assembly technology, the assembled overhanging holder includes vertical slipper, end plate, fixing groove, screw rod and nut, the end plate, screw rod, sliding block are sequentially connected, the sliding block, screw rod, end plate are integrally attached on vertical securing slot, the top of the screw rod is fed through end plate, lower part is fed through the sliding block, and the equal spiral of upper and lower ends of the screw rod is connected with nut, and the nut is fastened on the top of end plate and the lower section of sliding block respectively；The sliding block sliding is embedded on vertical securing slot, and the end plate is fastened on the top of vertical securing slot；The front of the vertical securing slot offers notch, and the sliding block is slidably arranged on the notch.The present invention can real presently implemented scene, only need to simply be cut as needed, then can assemble the cantilever supporting frame needed for completing by simple assembly operation, which can avoid relying on frictional force supporting power and decline or the problem of nut loosening load-bearing is failed.
Description
【Technical field】
The present invention relates to a kind of assembled overhanging holder and its assembly technologies.
【Background technology】
With assembled architecture technology and pipe gallery assembly technology development, assembled suspension and support has been widely used for filling
With formula construction market, wherein cantilever supporting frame is applied universal in assembled architecture and pipe gallery.Cantilever supporting frame is generally by fixing
The components compositions such as slot, overhanging arm, fixing piece, bolt, nut, component are manufactured product, and component can arbitrarily be combined into different outstanding
Choose rack form.Cantilever supporting frame assembly technology on existing market is mainly connected by screw bolts technique, i.e., by fixing piece, matches
Bolt, nut are closed, overhanging arm is linked together with fixing groove, combination assembles various forms of cantilever supporting frames.
Existing cantilever supporting frame is to be tightly pressed against in fixing groove with bolt, nut by arm is overhang in assembling process, holder
Load-bearing be to be undertaken by the frictional force between overhanging arm and fixing groove, decline there are load-bearing capacity or since nut loosens
Load-bearing is led to problems such as to fail.
【Invention content】
One of the technical problem to be solved in the present invention is to provide a kind of assembled overhanging holder, can solve existing
Cantilever supporting frame load-bearing undertakes by the frictional force between overhanging arm and fixing groove, declines there are load-bearing capacity or due to nut pine
It is de- that load-bearing is led to problems such as to fail.
The present invention is realized in one of above-mentioned technical problem：
A kind of assembled overhanging holder, the assembled overhanging holder include vertical slipper, end plate, fixing groove, screw rod and
Nut, the end plate, screw rod, sliding block are sequentially connected, and the sliding block, screw rod, end plate are integrally attached on vertical securing slot, described
The top of screw rod is fed through end plate, and lower part is fed through the sliding block, and the equal spiral of upper and lower ends of the screw rod is connected with nut, and
The nut is fastened on the top of end plate and the lower section of sliding block respectively；The sliding block sliding is embedded on vertical securing slot, described
End plate is fastened on the top of vertical securing slot；
The cross section of the vertical securing slot is a rectangle, and the front of the vertical securing slot offers notch, the cunning
Block is slidably arranged on the notch；
The sliding block includes interior slip ring, outer bearing plate, outer vertical plate and interior positioning plate, and the interior positioning plate is arranged described interior
Slip ring bottom, the interior positioning plate middle part are equipped with bolt hole, and the screw rod passes through the bolt hole, the outer bearing plate vertically to set
Set and be outward extended with an extension at the top of the top of the outer vertical plate, the interior slip ring rear wall, the extension it is another
End connects with the outer bearing plate close to the side of outer vertical plate.
Further, the both sides of the notch extend outward one first trapezoidal protrusion, and the end plate cross section is U
Type, the both side plate of the end plate all have one second trapezoidal protrusion close to corresponding first trapezoidal one end outstanding, and each described first
Trapezoidal inclined-plane outstanding and corresponding second trapezoidal slopes which match outstanding, each second trapezoidal protrusion are fastened on corresponding
The first trapezoidal highlight.
Further, it is provided with plural supporting rod between the outer bearing plate and the outer vertical plate.
Further, the back side of the vertical securing slot is additionally provided with plural first circular hole, the outer bearing plate and outermost
The second circular hole is equipped on two supporting rods of side, the interior slip ring rear wall and the outer vertical plate are provided with mutual corresponding third
Circular hole.
Further, the assembled overhanging holder is also matched with horizontal bars, and plural bolt passes through corresponding second
Horizontal bars are fixed on outer bearing plate and supporting rod by circular hole.
Further, a bolt passes through mutual corresponding third circular hole on the interior slip ring rear wall and the outer vertical plate, and
Pass through nut check.
The second technical problem to be solved by the present invention is to provide a kind of assembly technology of assembled overhanging holder, can
Real presently implemented scene, only need to simply be cut as needed, then can assemble completion by simple assembly operation
The problem of required cantilever supporting frame, which can avoid relying on the decline of frictional force supporting power or nut loosening load-bearing failure.
The present invention is realized in the twos' of above-mentioned technical problem：
A kind of assembly technology of assembled overhanging holder, the assembled overhanging holder is as described above, the assembly technology
It is as follows：
The length of vertical securing slot and screw rod is determined according to the size of holder needed for scene in assembly construction site, according to
Required size cuts vertical securing slot and screw rod；
Then position that the vertical securing slot scene of being installed to is needed to mounting bracket, then passes through sliding block by one end of screw rod
Interior positioning plate bolt hole after, screw rod at positioning plate bottom screws in nut inside, and rotating nuts make sliding block adjust to screw rod
Corresponding position；
The screw rod for being installed with sliding block is inserted into vertical securing slot from top to bottom, after the circular hole alignment screw rod of end plate is penetrated,
Expose and screw in nut on the screw rod on end plate top, rotating nuts make end plate adjust to vertical securing slot upper end；Rotation is close to sliding block
Nut on the screw rod at end makes sliding block adjust to the accurate position of screw rod, and cantilever supporting frame assembly is completed.
Further, the both sides of the notch of the vertical securing slot extend outward one first trapezoidal protrusion, described
End plate cross section is U-shaped, and the end plate all has one second trapezoidal protrusion close to corresponding first trapezoidal both side plate one end outstanding,
Each first trapezoidal inclined-plane outstanding and corresponding second trapezoidal slopes which match outstanding, each described second trapezoidal prominent card
It is located at the corresponding first trapezoidal highlight.
Further, it is provided with plural supporting rod between the outer bearing plate and the outer vertical plate.
Further, the back side of the vertical securing slot is additionally provided with plural first circular hole, the outer bearing plate and outermost
The second circular hole is equipped on two supporting rods of side, the interior slip ring rear wall and the outer vertical plate are provided with mutual corresponding third
Circular hole；
The assembled overhanging holder is also matched with horizontal bars, and plural bolt is by corresponding to the second circular hole by horizon bar
Part is fixed on outer bearing plate and supporting rod；
One bolt passes through mutual corresponding third circular hole on the interior slip ring rear wall and the outer vertical plate, and passes through nut lock
Tightly.
The invention has the advantages that：
1) sliding block is devised, can quickly adjust the height of cantilever supporting frame, while avoiding relying on frictional force load-bearing；
2) end plate is devised, is used in conjunction with screw rod, can realize the load-bearing of cantilever supporting frame；
The present invention is combined using screw rod and sliding block, and the original frictional force by between overhanging arm and fixing groove is made to undertake
Holder load-bearing is changed to be undertaken by screw rod pulling force；That is the load (load-bearing) of horizontal bars passes to sliding block, passes to the lotus of sliding block
Load passes to end plate by screw rod again, and end plate is pressed on vertical securing slot, to realize the load-bearing of cantilever supporting frame.
The present invention can real presently implemented scene, only need to simply be cut as needed, then pass through simple group
The cantilever supporting frame needed for completing can be assembled by filling operation, and avoid relying on the decline of frictional force supporting power or nut loosening load-bearing mistake
Effect problem.
【Description of the drawings】
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is a kind of structural schematic diagram of assembled overhanging holder of the present invention.
Fig. 2 is a kind of broken away view of assembled overhanging holder of the present invention.
Fig. 3 is the fit structure schematic diagram of the sliding block of the present invention, screw rod, end plate and nut.
Fig. 4 is the structure chart of the sliding block of the present invention.
Fig. 5 is another viewing angle constructions figure of sliding block of the present invention.
Fig. 6 is the structure schematic diagram of the end plate knot of the present invention.
Fig. 7 is the cooperation figure of the assembled overhanging holder and horizontal bars of the present invention.
【Specific implementation mode】
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Emphasis refering to fig. 1~7 shown in, the present invention relates to a kind of assembled overhanging holder, the assembled overhanging holder packet
Sliding block 1, end plate 2, vertical securing slot 3, screw rod 4 and nut 5 are included, the end plate 2, screw rod 4, sliding block 1 are sequentially connected, the sliding block
1, screw rod 4, end plate 2 are integrally attached on vertical securing slot 3, and the top of the screw rod 4 is fed through end plate 2, and lower part is fed through institute
Sliding block 1 is stated, the equal spiral of upper and lower ends of the screw rod 4 is connected with nut 5, and the nut 5 is fastened on the top of end plate 2 respectively
With the lower section of sliding block 1；The sliding of the sliding block 1 is embedded on vertical securing slot 3, and the end plate 4 is fastened on the top of vertical securing slot 3
Portion；
The cross section of the vertical securing slot 3 is a rectangle, and the front of the vertical securing slot 3 offers notch 32, institute
Sliding block 1 is stated to be slidably arranged on the notch 32；
For emphasis refering to shown in Figure 4 and 5, the sliding block 1 includes interior slip ring 11, outer bearing plate 12, outer vertical plate 13 and interior positioning
Plate 15, the setting of interior positioning plate 15 are equipped with bolt hole, the spiral shell at 11 bottom of interior slip ring, 15 middle part of the interior positioning plate
Bar 4 passes through the bolt hole, the outer bearing plate 12 to be laterally vertically set on the top of the outer vertical plate 13, the interior slip ring 11
An extension 16 is outward extended at the top of rear wall, the other end of the extension 16 is with the outer bearing plate 12 close to outer vertical plate
13 side connects.
For emphasis refering to fig. 1 with shown in 2, the both sides of the notch 32 extend outward one first trapezoidal protrusion 31, institute
It is U-shaped to state 2 cross section of end plate, and the both side plate of the end plate 2 all has one second close to one end of corresponding first trapezoidal protrusion 31
Trapezoidal protrusion 21, the slopes which match on the inclined-plane and corresponding second trapezoidal protrusion 21 of each first trapezoidal protrusion 31, each institute
The second trapezoidal protrusion 21 is stated to be fastened at the corresponding first trapezoidal protrusion 31.
It is provided with plural supporting rod 14 between the outer bearing plate 12 and the outer vertical plate 13.
The back side of the vertical securing slot 3 is additionally provided with plural first circular hole, the outer bearing plate 12 and outermost two
The second circular hole 17 is equipped on a supporting rod 14,11 rear wall of interior slip ring and the outer vertical plate 13 are provided with mutual corresponding
Three circular holes 18.
Emphasis is as shown in fig.7, the assembled overhanging holder is also matched with horizontal bars 6, and plural bolt 7 is by right
Horizontal bars 6 are fixed on outer bearing plate 12 and supporting rod 14 by the second circular hole 17 answered.
One bolt 7 passes through mutual corresponding third circular hole 18 on 11 rear wall of interior slip ring and the outer vertical plate 13, and leads to
Cross nut check.
The invention further relates to a kind of above-mentioned assembly technology of assembled overhanging holder, the assembly technology is as follows：
The length of vertical securing slot 3 and screw rod 4, root are determined according to the size of holder needed for scene in assembly construction site
Vertical securing slot 3 and screw rod 4 are cut according to required size；
Then position that the scene of being installed to of vertical securing slot 3 is needed to mounting bracket, one end of screw rod 4 is then passed through slide
After the bolt hole of the interior positioning plate 15 of block 1, the screw rod 4 at 15 bottom of positioning plate screws in nut 5 inside, and rotating nuts 5 make sliding block
1 adjusts to 4 corresponding position of screw rod；
The screw rod 4 for being installed with sliding block 1 is inserted into vertical securing slot 3 from top to bottom, the circular hole alignment screw rod 4 of end plate 2 is penetrated
Afterwards, nut 5 is screwed on the screw rod 4 for exposing 2 top of end plate, rotating nuts 5 make end plate 2 adjust to 3 upper end of vertical securing slot；
Nut 5 of the rotation on the screw rod 4 at 1 end of sliding block, makes sliding block 1 adjust to 4 accurate position of screw rod, cantilever supporting frame has assembled
At.
One bolt 7 is passed through into mutual corresponding third circular hole 18 on 11 rear wall of interior slip ring and the outer vertical plate 13, and
Pass through nut check.
Horizontal bars 6 are finally mounted on to the corresponding position of sliding block 1 being exposed at outside vertical securing slot 3.
The outer bearing plate 12 act as load level rod piece 6, and the effect of the second circular hole is fixed horizontal bars 6, is prevented
It slips；The effect of supporting rod 14 is to enhance the bearing capacity of outer bearing plate 12；The second circular hole on supporting rod 14 is used for horizon bar
Part 6 is fixed on sliding block, prevents from slipping；Interior slip ring 11 is arranged in vertical securing slot 3, play the guiding role, moreover it is possible to prevent outer hold
Weight plate 12 tilts, and the third circular hole on interior slip ring 11 is combined with the third circular hole on outer vertical plate 13 for across bolt, bolt to be logical
It crosses after nut check and interior slip ring 11 and outer vertical plate 13 is clamped in the both sides of vertical securing slot 3, so that sliding block 1 is fixed on vertical solid
Determine 3 designated position of slot.
The cooperation of first trapezoidal protrusion 31 and the second trapezoidal protrusion 21 of the invention, it acts as prevent vertical securing slot in lotus
Both sides are opened in the case of load.
To sum up, the present invention has the following advantages：
1) sliding block 1 is devised, can quickly adjust the height of cantilever supporting frame, while avoiding relying on frictional force load-bearing；
2) end plate 2 is devised, is used in conjunction with screw rod 4, can realize the load-bearing of cantilever supporting frame；
The present invention is combined using screw rod 4 and sliding block 1, makes to undertake by the frictional force between overhanging arm and fixing groove originally
Holder load-bearing be changed to be undertaken by 4 pulling force of screw rod；That is the load (load-bearing) of horizontal bars 6 passes to sliding block 1, passes to sliding block
1 load passes to end plate 2 by screw rod 4 again, and end plate 2 is pressed on vertical securing slot 3, to realize the load-bearing of cantilever supporting frame.
The present invention can real presently implemented scene, only need to simply be cut as needed, then pass through simple group
The cantilever supporting frame needed for completing can be assembled by filling operation, and avoid relying on the decline of frictional force supporting power or nut loosening load-bearing mistake
Effect problem.
Although specific embodiments of the present invention have been described above, those familiar with the art should manage
Solution, we are merely exemplary described specific embodiment, rather than for the restriction to the scope of the present invention, it is familiar with this
The technical staff in field modification and variation equivalent made by the spirit according to the present invention, should all cover the present invention's
In scope of the claimed protection.
Claims (10)
1. a kind of assembled overhanging holder, it is characterised in that：The assembled overhanging holder includes vertical slipper, end plate, fixation
Slot, screw rod and nut, the end plate, screw rod, sliding block are sequentially connected, and the sliding block, screw rod, end plate are integrally attached to vertical fixation
On slot, the top of the screw rod is fed through end plate, and lower part is fed through the sliding block, the equal spiral connection of upper and lower ends of the screw rod
There is nut, and the nut is fastened on the top of end plate and the lower section of sliding block respectively；The sliding block sliding, which is embedded, vertically to be fixed
On slot, the end plate is fastened on the top of vertical securing slot；
The cross section of the vertical securing slot is a rectangle, and the front of the vertical securing slot offers notch, and the sliding block is slided
It is dynamic to be arranged on the notch；
The sliding block includes interior slip ring, outer bearing plate, outer vertical plate and interior positioning plate, and the interior positioning plate is arranged in the interior slip ring
Bottom, the interior positioning plate middle part are equipped with bolt hole, and the screw rod passes through the bolt hole, the outer bearing plate to be vertically set on
The top of the outer vertical plate, is outward extended with an extension at the top of the interior slip ring rear wall, the other end of the extension with
The outer bearing plate connects close to the side of outer vertical plate.
2. a kind of assembled overhanging holder according to claim 1, it is characterised in that：The both sides of the notch are outside
Extend one first trapezoidal protrusion, the end plate cross section is U-shaped, and the both side plate of the end plate is close to corresponding first trapezoidal protrusion
One end all have one second trapezoidal protrusion, each first trapezoidal inclined-plane outstanding and corresponding second trapezoidal inclined-plane outstanding
Match, each second trapezoidal protrusion is fastened on the corresponding first trapezoidal highlight.
3. a kind of assembled overhanging holder according to claim 1 or 2, it is characterised in that：The outer bearing plate and described
Outside plural supporting rod is provided between vertical plate.
4. a kind of assembled overhanging holder according to claim 3, it is characterised in that：The back side of the vertical securing slot is also
It is provided with plural first circular hole, the second circular hole, the interior cunning are equipped on the outer bearing plate and outermost two supporting rods
Ring rear wall and the outer vertical plate are provided with mutual corresponding third circular hole.
5. a kind of assembled overhanging holder according to claim 3, it is characterised in that：The assembled overhanging holder also with
Horizontal bars match, and horizontal bars are fixed on outer bearing plate and supporting rod by plural bolt by corresponding second circular hole.
6. a kind of assembled overhanging holder according to claim 3, it is characterised in that：After one bolt passes through the interior slip ring
Mutual corresponding third circular hole on wall and the outer vertical plate, and pass through nut check.
7. a kind of assembly technology of assembled overhanging holder, it is characterised in that：The assembled overhanging holder such as claim 1 institute
It states, the assembly technology is as follows：
The length of vertical securing slot and screw rod is determined, according to required according to the size of holder needed for scene in assembly construction site
Size cut vertical securing slot and screw rod；
Then position that the vertical securing slot scene of being installed to is needed to mounting bracket, then passes through one end of screw rod in sliding block
After the bolt hole of positioning plate, the screw rod at positioning plate bottom screws in nut inside, and rotating nuts make sliding block adjust corresponding to screw rod
Position；
The screw rod for being installed with sliding block is inserted into vertical securing slot from top to bottom, after the circular hole alignment screw rod of end plate is penetrated, is being exposed
Nut is screwed on the screw rod on end plate top, rotating nuts make end plate adjust to vertical securing slot upper end；Rotation is close to slider end
Nut on screw rod makes sliding block adjust to the accurate position of screw rod, and cantilever supporting frame assembly is completed.
8. a kind of assembly technology of assembled overhanging holder according to claim 7, it is characterised in that：The vertical fixation
The both sides of the notch of slot extend outward one first trapezoidal protrusion, and the end plate cross section is U-shaped, and the end plate is close to right
Answer first trapezoidal both side plate one end outstanding to all have one second trapezoidal protrusion, each first trapezoidal inclined-plane outstanding with it is corresponding
The second trapezoidal slopes which match outstanding, each second trapezoidal protrusion is fastened on the corresponding first trapezoidal highlight.
9. a kind of assembly technology of assembled overhanging holder according to claim 7, it is characterised in that：The outer bearing plate
It is provided with plural supporting rod between the outer vertical plate.
10. a kind of assembly technology of assembled overhanging holder according to claim 9, it is characterised in that：It is described vertical solid
The back side for determining slot is additionally provided with plural first circular hole, and the second circle is equipped on the outer bearing plate and outermost two supporting rods
Hole, the interior slip ring rear wall and the outer vertical plate are provided with mutual corresponding third circular hole；
The assembled overhanging holder is also matched with horizontal bars, and plural bolt is consolidated horizontal bars by corresponding second circular hole
It is scheduled on outer bearing plate and supporting rod；
One bolt passes through mutual corresponding third circular hole on the interior slip ring rear wall and the outer vertical plate, and passes through nut check.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810534066.7A CN108756201B (en) | 2018-05-29 | 2018-05-29 | Assembled cantilever support and assembling process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810534066.7A CN108756201B (en) | 2018-05-29 | 2018-05-29 | Assembled cantilever support and assembling process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108756201A true CN108756201A (en) | 2018-11-06 |
| CN108756201B CN108756201B (en) | 2020-07-17 |
Family
ID=64003665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810534066.7A Active CN108756201B (en) | 2018-05-29 | 2018-05-29 | Assembled cantilever support and assembling process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108756201B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972894A (en) * | 2019-03-14 | 2019-07-05 | 华信咨询设计研究院有限公司 | Wisdom integrates bar anti-slip type volume expansion structure |
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| CN106285141A (en) * | 2016-09-22 | 2017-01-04 | 贾玉杰 | A kind of novel finished product antidetonation suspension and support and using method thereof |
| CN106351432A (en) * | 2016-10-28 | 2017-01-25 | 中国冶集团有限公司 | Assembled overhanging support frame |
| CN206521939U (en) * | 2017-03-09 | 2017-09-26 | 周口科技职业学院 | A kind of overhanging down-stayed scaffold |
| CN207194432U (en) * | 2017-09-14 | 2018-04-06 | 北京城建六建设集团有限公司 | A kind of adjustable suspension bridging piece support frame |
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2018
- 2018-05-29 CN CN201810534066.7A patent/CN108756201B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090196679A1 (en) * | 2008-02-06 | 2009-08-06 | Parker Thomas W | Stanchion systems, stanchion attachment systems, and horizontal lifeline systems including stanchion systems |
| KR101243178B1 (en) * | 2011-09-05 | 2013-03-13 | 최신선 | Apparatus for constructing scaffolding capable of complex process and safety ensurance |
| CN106285141A (en) * | 2016-09-22 | 2017-01-04 | 贾玉杰 | A kind of novel finished product antidetonation suspension and support and using method thereof |
| CN106351432A (en) * | 2016-10-28 | 2017-01-25 | 中国冶集团有限公司 | Assembled overhanging support frame |
| CN206521939U (en) * | 2017-03-09 | 2017-09-26 | 周口科技职业学院 | A kind of overhanging down-stayed scaffold |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972894A (en) * | 2019-03-14 | 2019-07-05 | 华信咨询设计研究院有限公司 | Wisdom integrates bar anti-slip type volume expansion structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108756201B (en) | 2020-07-17 |
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