CN209339585U - High-intensitive outrigger drawknot mechanism can be recycled in one kind - Google Patents
High-intensitive outrigger drawknot mechanism can be recycled in one kind Download PDFInfo
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- CN209339585U CN209339585U CN201822272469.7U CN201822272469U CN209339585U CN 209339585 U CN209339585 U CN 209339585U CN 201822272469 U CN201822272469 U CN 201822272469U CN 209339585 U CN209339585 U CN 209339585U
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- adapter
- intensitive
- recycled
- thread bar
- double thread
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Abstract
The utility model belongs to technical field of building construction, disclosing one kind can be recycled high-intensitive outrigger drawknot mechanism, threaded double thread bar is set including built-in pipe, fixing piece, adapter, connecting tube and both ends, the double thread bar is removable to wear the built-in pipe, the other end of fixing piece described in one end releasable connection of the double thread bar, the double thread bar is socketed in the adapter；The adapter is socketed in the connecting tube away from one end of the double thread bar.The utility model can guarantee the stability and safety that outrigger is connect with Liang Qiang.
Description
Technical field
The utility model belongs to technical field of building construction, and in particular to high-intensitive outrigger drawknot machine can be recycled in one kind
Structure.
Background technique
Wall-connecting piece refers to the component of connection outrigger and building, can transmit pulling force and pressure, be the important composition of outrigger
Part.The outrigger collapse accident occurred both at home and abroad, be substantially due to wall-connecting piece be arranged after insufficient or wall-connecting piece is removed not and
When mend and set and cause.The unstability of outrigger is generally divided into overall collapse and local buckling.Wherein overall collapse is the main of outrigger unstability
Failure mode, destruction start from no wall-connecting piece, lateral stiffness difference or the biggish transverse frame of initial bending.And reasonable, carrying is set
Power is high, constructs satisfactory wall-connecting piece, and the raising of improvement and lateral stiffness to the effective span of computing unit rises directly
Effect, thus play an important role to the overall stability of outrigger.
Section 6.4 of " construction fastener type steel pipe scaffold technical specification of security " (JGJ130-2011) makees wall-connecting piece
Concrete regulation, to the single, double exclusive frame of 24m or more must use rigid connecting tube.Rigid connecting tube refer to using steel pipe,
The wall-connecting piece of fastener or built-in fitting composition.But the way of not concrete regulation rigid connecting tube, causes current various regions rigid in specification
The way of property wall-connecting piece is different, mainly has pre-buried steel tube method, rear anchoring method, banded column method and pre-buried iron plate method etc., part way is deposited
In security risk.
Conventional embedded steel tube wall-connecting piece is embedded in top surface of the beam, influences the external wall constructions such as masonry, plastering, coating, and steel pipe is pre-buried
The putlog hole that part is formed needs to repair, and secondary change sets wall-connecting piece.The pre-buried wall-connecting piece of traditional steel pipe has the disadvantage that repairing hole
The common quality defect for causing infiltration removes security risk existing for conventional steel wall-connecting piece and pre-buried as repairing hole
Steel pipe waste is larger.
In view of the above-mentioned problems, the Chinese utility model patent of Publication No. CN205400024U, which discloses one kind, to be dismantled
The tool type external scaffold bolt wall-connecting piece of reuse, including the capping of built-in fitting, built-in fitting, connection bolt and bolt screw group
Part, built-in fitting one end are equipped with internal screw thread, and the other end is used in the embedded hole that is caught on side form；Built-in fitting covers one end equipped with outer spiral shell
Line, for connecting with built-in fitting, the other end is for being clamped on embedded hole；Connect bolt one end be equipped with external screw thread, for it is pre-
Embedded part connection, the other end are homalocephalus end and are equipped with pin hole；Scaffolding steel pipe is equipped with connecting hole；Bolt screw assembly is by inserting
Scaffolding steel pipe and connection are bolted by pin hole and connecting hole.The wall-connecting piece has the following problems in use:
1, connection bolt is an integral structure, and inevitably some needs is exposed outside Liang Qiang after installation is complete, connection
The end of bolt only passes through external screw thread and the internal screw thread of built-in fitting is correspondingly connected with, and with the progress of engineering, connects the end of bolt
It is influenced by external factor such as rainwater, wind, screw thread is easy to happen aging, to influence the overall stability of wall-connecting piece, deposits
In security risk；2, built-in fitting positioning trouble, work consuming, pouring concrete are easy to deviation in the process；3, bolt and bolt spiral shell are connected
The connection of silk component is drawn without the ability and receiving of receiving vertical rigidity, pressure capability is relatively low；4, it is easy during pouring concrete
Impact failure is played to built-in fitting.
Utility model content
In view of the above problems, it is necessary to which providing one kind can be recycled high-intensitive outrigger drawknot mechanism, can
Guarantee the stability and safety that outrigger is connect with Liang Qiang.
In order to achieve the above objectives, the technical scheme adopted by the utility model is
High-intensitive outrigger drawknot mechanism, including built-in pipe, fixing piece, adapter, connecting tube and two can be recycled in one kind
End sets threaded double thread bar, and the double thread bar is removable to wear the built-in pipe, one end of the double thread bar
The other end of fixing piece described in releasable connection, the double thread bar is socketed in the adapter；The adapter deviates from institute
The one end for stating double thread bar is socketed in the connecting tube.
Preferably, the high-intensitive outrigger drawknot mechanism that can be recycled further includes billet, the removable set of billet
On the double thread bar and it is located at the fixing piece towards the side of the adapter.
Preferably, the billet is equipped with rubber pad towards the side of the adapter.
Preferably, the billet with a thickness of 8~20mm.
Preferably, the circle that the cross section of the double thread bar is 16~25mm in a diameter, the length of the connecting tube
For 350~800mm.
Preferably, the built-in pipe uses pvc pipe.
Preferably, the connecting tube uses seamless steel pipe.
Preferably, the adapter is successively equipped at intervals with stainless steel layer and rubber layer from outside to inside.
Preferably, it is connected between the stainless steel layer by stainless steel.
Preferably, the adapter includes opposite both ends, and wherein the outside of one end is equipped with screw thread, the screw thread edge of the one end
The length direction of the adapter extends and corresponding with the connection screw thread of inside pipe wall；The other end is towards adapter inner recess
In a groove corresponding with the double thread boom end, the inner wall of the groove is equipped with screw thread, the screw thread and the double thread
The screw thread of boom end is corresponding.
Due to the adoption of the above technical scheme, the utility model has the following beneficial effects:
1, in the present invention, double thread bar is removable wears built-in pipe, and one end releasable connection of double thread bar is solid
Determine part, the other end of double thread bar is socketed in adapter, and adapter can protect the screw thread of double thread bar,
The screw thread of double thread boom end is protected to a certain extent；Adapter is socketed on connecting tube away from one end of double thread bar
Interior, connecting tube can protect the screw thread of adapter, it is seen then that adapter can be to the screw thread of connecting tube and double thread bar
It is protected, can effectively avoid the environmental damage that screw thread is subject to, can guarantee that high-intensitive outrigger drawknot entirely can be recycled
The safety of mechanism and stability.In addition, double thread bar is connected with connecting tube by adapter, adapter can be reinforced connecting
The connection rigidity of pipe and double thread bar, the construction of pulling force can be born again by meeting receiving pressure.
2, in the present invention, billet is removable is sheathed on double thread bar and is located at fixing piece towards adapter
Side, during engineering carries out, as the load bearing stength of outrigger increases, traction force suffered by connecting tube is also increasing,
Billet can prevent fixing piece to be detached from Liang Qiang because traction force is excessive at this time.
3, in the present invention, billet is equipped with rubber layer towards the side of adapter, and rubber pad can slow down steel pad
Plate scratches Liang Qiang, convenient for the construction in later period.
4, in the present invention, billet, double thread bar, connecting tube are all made of fixed dimension, can guarantee follow
Ring uses the highest stability of high-intensitive outrigger drawknot mechanism.
5, in the present invention, adapter is successively equipped at intervals with stainless steel layer and rubber layer and stainless steel layer from outside to inside
Between be connected by stainless steel, rubber layer can be avoided erosion of the extraneous moisture to stainless steel layer；Pass through between stainless steel layer
Stainless steel be connected be capable of forming it is netted, can make the inside of entire adapter have it is certain stretch drawing, be able to extend adapter
Service life.
Detailed description of the invention
Fig. 1 is the structural representation that high-intensitive outrigger drawknot mechanism can be recycled in the utility model first embodiment
Figure.
Fig. 2 is the use schematic diagram that high-intensitive outrigger drawknot mechanism can be recycled in Fig. 1.
Fig. 3 is the structural representation that high-intensitive outrigger drawknot mechanism can be recycled in the utility model second embodiment
Figure.
Fig. 4 is the enlarged drawing in Fig. 3 at A.
Fig. 5 is the internal structure cross-sectional view of adapter in Fig. 3.
In attached drawing, 1- double thread bar, 2- built-in pipe, 3- fixing piece, 4- adapter, 5- connecting tube, 6- billet, 7- rubber
Rubber mat, 8- rubber layer, 9- stainless steel layer, 100- outrigger, 200- Liang Qiang.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It should be noted that it can be directly on another component when component is referred to as " being fixed on " another component
Or there may also be components placed in the middle.When a component is considered as " connection " another component, it, which can be, is directly connected to
To another component or it may be simultaneously present component placed in the middle.When a component is considered as " being set to " another component, it
It can be and be set up directly on another component or may be simultaneously present component placed in the middle.Term as used herein is " vertical
", " horizontal ", "left", "right" and similar statement for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
Embodiment one:
As shown in Figure 1, the utility model first embodiment, which provides one kind, can be recycled high-intensitive outrigger drawknot mechanism,
Including double thread bar 1, fixing piece 3, adapter 4, connecting tube 5 and billet 6.High-intensitive outrigger drawknot machine can be recycled in this
Structure needs are used cooperatively with built-in pipe 2.The double thread bar 1 detachably wears the built-in pipe 2, the double thread bar 1
One end the fixing piece 3 is detachably equipped with by screw thread, in the present embodiment, fixing piece 3 is double nut；The double end spiral shell
The other end of rasp bar 1 is socketed in the adapter 4 by the way that screw thread is removable, adapter 4 can by the screw thread of double thread bar 1 into
Row protection, protects the screw thread of 1 end of double thread bar.The adapter 4 passes through spiral shell away from one end of the double thread bar 1
Line is detachably socketed in the connecting tube 5, and connecting tube 5 can protect the screw thread of adapter 4.As it can be seen that 4 energy of adapter
It is enough that connecting tube 5 and the screw thread of double thread bar 1 are protected, it can effectively avoid the environmental damage that screw thread is subject to, Neng Goubao
Safety and the stability of high-intensitive outrigger drawknot mechanism entirely can be recycled in card.The billet 6 is removable be sheathed on it is described
On double thread bar 1 and it is located at the fixing piece 3 towards the side of the adapter 4, during engineering carries out, with outer
The load bearing stength of frame 100 increases, and traction force suffered by connecting tube 5 is also increasing, and billet 6 can prevent fixing piece 3 at this time
Beam wall 200 is detached from because traction force is excessive.High-intensitive outrigger drawknot mechanism entirely can be recycled to be fixedly mounted with outrigger 100
Afterwards, it is whole to be capable of fixing drawknot outrigger.
In the present embodiment, the adapter 4 pours, and including opposite both ends, wherein the outside of one end is equipped with
Screw thread, the screw thread of the one end extend and corresponding with the screw thread of 5 inner wall of connecting tube along the length direction of the adapter 4；
The other end is in a groove corresponding with 1 end of double thread bar towards 4 inner recess of adapter, and the inner wall of the groove is equipped with spiral shell
Line, the screw thread are corresponding with the screw thread of 1 end of double thread bar.
In the present embodiment, the billet 6 with a thickness of 10mm, the double thread bar 1 uses major thread screw rod
And the circle that its cross section is 20mm in a diameter, the built-in pipe 2 use pvc pipe, the length of the connecting tube 5 be 450mm and
A diameter of 48mm, shown fixing piece 3 use double nut, above-mentioned solid used by billet 6, double thread bar 1, connecting tube 5
Scale cun, can guarantee the highest stability that high-intensitive outrigger drawknot mechanism can be recycled.
In the present embodiment, it is equipped in the double thread bar 1, the adapter 4 and the connecting tube 5 convenient for behaviour
The convex block (not identifying) of work, the convex block can increase the frictional force of hand and component, make double thread bar and adapter 4 convenient for peace
Dress.
As shown in Fig. 2, the present embodiment also provides a kind of high-intensitive outrigger drawknot mechanism that can be recycled to be made in beam wall 200
With method, the specific steps are as follows:
(1) built-in pipe 2 is set
Two beam wall forms are relatively fixed two-by-two, and the size that built-in pipe 2 is corresponded on beam wall form drills, will be pre-
Pipe laying 2 passes through the hole of two beam wall forms, and mixed mud is carried out between two beam wall forms and is poured, and obtains after mixed mud is dry
Beam wall 200, beam wall 200 form a perforative embedded hole at built-in pipe 2.
(2) double thread bar 1 is installed
The end that double thread bar 1 wears built-in pipe 2 and double thread bar 1 is located at beam wall 200 away from outrigger 100
Outside, billet 6 is entered from the end cap and is offseted with beam wall 200, fixing piece 3 is screwed into double thread bar 1 so that double end spiral shell
Rasp bar 1 is bonded with beam wall 200.
(3) adapter 4 is installed
Adapter 4 is installed on corresponding double thread bar 1 towards one end of outrigger 100 by the screw thread of itself.
(4) connecting tube 5 is installed
Connecting tube 5 is connected by the screw thread of itself with the screw thread of adapter 4 towards 100 one end of outrigger, so that connection
Pipe 5 and adapter 4 are fixed.
(5) connection connecting tube 5 and outrigger 100
Connecting tube 5 is connect by cruciform fastening for falsework with outrigger 100 away from one end of beam wall 200.
(6) recycling of high-intensitive outrigger drawknot mechanism can be recycled
Billet 6 is removed, the connecting tube 5 being integrated, adapter 4 and double thread bar 1 will be had connected directly from beam wall 200
Upper dismounting, being equipped with new built-in pipe 2 can be recycled.Built-in pipe 2 is pvc pipe in step (1), at low cost, and to beam wall 200
Without influence, therefore it can be stranded in beam wall 200.
(7) repairing of embedded hole
Embedded hole is repaired using dismissing infusion, smearing waterproof mortar.
It is appreciated that the connection type of adapter 4 and double thread bar 1, connecting tube 5 is not limited to the spiral shell in present embodiment
Line can be in other implementations welding, in the case where welding, high-intensitive outrigger drawknot mechanism can be recycled can be whole
It is a to be removed from built-in pipe 2, to reuse.
It is appreciated that the thickness of billet 6 is not limited to the 10mm in present embodiment, it is in other embodiments, thick
Degree can be 8mm between 20mm.
It is appreciated that the cross-sectional diameter of double thread bar 1 is not limited to the 20mm in present embodiment, in other embodiment party
It can be 16mm to any diameter between 25mm in formula.
It, in other embodiments, can be with it is appreciated that the length of connecting tube 5 is not limited to the 450mm in present embodiment
For 350mm to any length between 800mm.
It is appreciated that fixing piece 9 is not limited to the double nut in present embodiment, it can be it in other embodiments
The end of double thread bar 1 can be fixed on the component of 200 side of beam wall by he.
Embodiment two:
As shown in Figures 3 to 5, one better embodiment of the utility model, which provides one kind, can be recycled high-intensitive outrigger drawing
Tie mechanism, including double thread bar 1, built-in pipe 2, fixing piece 3, adapter 4, connecting tube 5 and billet 6.The double thread
Bar 1 detachably wears the built-in pipe 2, and one end of the double thread bar 1 is detachably equipped with the fixing piece 3 by screw thread,
The other end of the double thread bar 1 is socketed in the adapter 4 by the way that screw thread is removable, and adapter 4 can be by double thread
The screw thread of bar 1 is protected, and protects the screw thread of 1 end of double thread bar to a certain extent.The adapter 4 is away from described
One end of double thread bar 1 is detachably socketed in the connecting tube 5 by screw thread, and connecting tube 5 can be to the screw thread of adapter 4
It is protected.As it can be seen that adapter 4 can protect connecting tube 5 and the screw thread of double thread bar 1, spiral shell can be effectively avoided
The environmental damage that line is subject to can guarantee safety and stability that high-intensitive outrigger drawknot mechanism entirely can be recycled, from
And it ensure that the safety of outrigger.The billet 6 is removable to be sheathed on the double thread bar 1 and is located at the fixing piece 3
Towards the side of the adapter 4, during engineering carries out, as the load bearing stength of outrigger 100 increases, 5 institute of connecting tube
The traction force received is also increasing, and billet 6 can prevent fixing piece 3 to be detached from beam wall 200 because traction force is excessive at this time.Entirely
High-intensitive outrigger drawknot mechanism can be recycled after being fixedly mounted with outrigger 100, it is whole to be capable of fixing drawknot outrigger.
In the present embodiment, the adapter 4 includes opposite both ends, and wherein the outside of one end is equipped with screw thread, this one
The screw thread at end along the adapter 4 length direction extend and it is corresponding with the screw thread of 5 inner wall of connecting tube；Other end court turns
4 inner recess of connector is in a groove corresponding with 1 end of double thread bar, and the inner wall of the groove is equipped with screw thread, the screw thread
It is corresponding with the screw thread of 1 end of double thread bar.
In the present embodiment, the billet 6 with a thickness of 10mm, the double thread bar 1 uses major thread screw rod
And the circle that its cross section is 20mm in a diameter, the built-in pipe 2 use pvc pipe, the length of the connecting tube 5 is 450mm, institute
Show that fixing piece 3 uses double nut, above-mentioned fixed dimension used by billet 6, double thread bar 1, connecting tube 5 can guarantee
The highest stability of high-intensitive outrigger drawknot mechanism can be recycled.
In the present embodiment, it is equipped in the double thread bar 1, the adapter 4 and the connecting tube 5 convenient for behaviour
The convex block (not identifying) of work, the convex block can increase the frictional force of hand and component, make double thread bar and adapter 4 convenient for peace
Dress.
In the present embodiment, the billet 6 is equipped with rubber pad 7,7 energy of rubber pad towards the side of the adapter 4
Slow down the scratching to beam wall 200 of billet 6, enough convenient for the construction in later period.
In the present embodiment, the adapter 4 is successively equipped at intervals with stainless steel layer 9 and rubber layer 8, rubber from outside to inside
Layer 8 can be avoided erosion of the extraneous moisture to stainless steel layer.It is connected between the stainless steel layer 9 by stainless steel, Neng Gou
Being connected between stainless steel layer 9 by stainless steel, it is netted to be capable of forming, and the inside of entire adapter 4 can be made to have and certain stretch drawing
Property, it is able to extend the service life of adapter 4.
The use that high-intensitive outrigger drawknot mechanism application method Yu embodiment one kind can be recycled in present embodiment
Method is identical, and details are not described herein.
Plank sheathing, the aluminum dipping form that high-intensitive outrigger drawknot mechanism is suitble to market general can be recycled in above-mentioned two embodiment
The architectural structure system of the formwork systems such as plate, therefore versatility is very strong.When applying to plank sheathing formwork system, it is only necessary to by fixing piece
3 are changed to the existing special plastic cap of the prior art.In addition, the installation position of high-intensitive outrigger drawknot mechanism can be recycled
The installation site for being different from conventional wall-connecting piece is set, high-intensitive outrigger drawknot mechanism can be recycled and avoid masonry position, therefore be not required to
The larger hole of indwelling routine wall-connecting piece on masonry significantly promotes quality, cost, the progress generation of building.
Above description is the detailed description for the preferable possible embodiments of the utility model, but embodiment is not limited to
The patent claim of the utility model, the same changes or modifications completed under technical spirit suggested by all the utility model
Change, should belong to the covered the scope of the patents of the utility model.
Claims (10)
1. high-intensitive outrigger drawknot mechanism, including built-in pipe (2) can be recycled in one kind, it is characterised in that: further include fixing piece
(3), adapter (4), connecting tube (5) and both ends set threaded double thread bar (1), and the double thread bar (1) can expose
If the built-in pipe (2), fixing piece (3) described in one end releasable connection of the double thread bar (1), the double thread bar
(1) the other end is socketed in the adapter (4)；The adapter (4) is socketed away from one end of the double thread bar (1)
In the connecting tube (5).
2. high-intensitive outrigger drawknot mechanism can be recycled as described in claim 1, it is characterised in that: described to can be recycled
High-intensitive outrigger drawknot mechanism further includes billet (6), and the billet (6) is removable to be sheathed on the double thread bar (1)
And it is located at the side of the fixing piece (3) towards the adapter (4).
3. high-intensitive outrigger drawknot mechanism can be recycled as claimed in claim 2, it is characterised in that: the billet (6)
Rubber pad (7) are equipped with towards the side of the adapter (4).
4. high-intensitive outrigger drawknot mechanism can be recycled as claimed in claim 2, it is characterised in that: the billet (6)
With a thickness of 8~20mm.
5. high-intensitive outrigger drawknot mechanism can be recycled as described in claim 1, it is characterised in that: the double thread bar
(1) circle that cross section is 16~25mm in a diameter, the length of the connecting tube (5) are 350~800mm.
6. high-intensitive outrigger drawknot mechanism can be recycled as described in claim 1, it is characterised in that: the built-in pipe (2)
Using pvc pipe.
7. high-intensitive outrigger drawknot mechanism can be recycled as described in claim 1, it is characterised in that: the connecting tube (5)
Using seamless steel pipe.
8. high-intensitive outrigger drawknot mechanism can be recycled as described in claim 1, it is characterised in that: the adapter (4)
It is successively equipped at intervals with stainless steel layer (9) and rubber layer (8) from outside to inside.
9. high-intensitive outrigger drawknot mechanism can be recycled as claimed in claim 8, it is characterised in that: the stainless steel layer
(9) it is connected between by stainless steel.
10. high-intensitive outrigger drawknot mechanism can be recycled as described in one of claim 1 to 8, it is characterised in that: described turn
Connector (4) includes opposite both ends, and wherein the outside of one end is equipped with screw thread, the length of the screw thread of the one end along the adapter (4)
Spend direction extend and it is corresponding with the screw thread of the connecting tube (5) inner wall；The other end is towards adapter (4) inner recess in one and institute
The corresponding groove in double thread bar (1) end is stated, the inner wall of the groove is equipped with screw thread, the screw thread and the double thread bar (1)
The screw thread of end is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822272469.7U CN209339585U (en) | 2018-12-29 | 2018-12-29 | High-intensitive outrigger drawknot mechanism can be recycled in one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822272469.7U CN209339585U (en) | 2018-12-29 | 2018-12-29 | High-intensitive outrigger drawknot mechanism can be recycled in one kind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209339585U true CN209339585U (en) | 2019-09-03 |
Family
ID=67760578
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822272469.7U Expired - Fee Related CN209339585U (en) | 2018-12-29 | 2018-12-29 | High-intensitive outrigger drawknot mechanism can be recycled in one kind |
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| Country | Link |
|---|---|
| CN (1) | CN209339585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924660A (en) * | 2019-12-09 | 2020-03-27 | 靳春华 | Semi-rigid scaffold device of disk pin type arched portal frame for constructional engineering |
-
2018
- 2018-12-29 CN CN201822272469.7U patent/CN209339585U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924660A (en) * | 2019-12-09 | 2020-03-27 | 靳春华 | Semi-rigid scaffold device of disk pin type arched portal frame for constructional engineering |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190903 Termination date: 20201229 |