CN106245899A - A kind of to drawing wall-connecting piece - Google Patents
A kind of to drawing wall-connecting piece Download PDFInfo
- Publication number
- CN106245899A CN106245899A CN201610882540.6A CN201610882540A CN106245899A CN 106245899 A CN106245899 A CN 106245899A CN 201610882540 A CN201610882540 A CN 201610882540A CN 106245899 A CN106245899 A CN 106245899A
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- China
- Prior art keywords
- nut
- wall
- connecting piece
- screw arbor
- pipe
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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
- E04G5/046—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on walls
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The present invention provides a kind of to drawing wall-connecting piece, including having externally threaded Screw arbor with nut at both-ends, the both ends of described Screw arbor with nut at both-ends respectively with clamp device threaded；The built-in pipe of a hollow it is arranged with, the two ends of this built-in pipe interpolation one hollow plug respectively on the outer wall of this Screw arbor with nut at both-ends；The clamp device of this Screw arbor with nut at both-ends one end is pad and nut；The clamp device of the other end is then for even wall coil assembly.The present invention, its built-in pipe two ends plug design avoids concrete and enters built-in pipe, thus increase the possibility of Screw arbor with nut at both-ends recycling, decreases the waste of aluminum alloy pattern plate.The Screw arbor with nut at both-ends used when pouring body of wall must be also applied for this wall-connecting piece, adds the versatility of Screw arbor with nut at both-ends.Additionally, the nut shim assembly at Screw arbor with nut at both-ends two ends all can manually fasten, easy for installation, and eliminate wall-connecting piece and the potential safety hazard of scaffold fit on and the problem of damage metope.
Description
Technical field
The present invention is relevant with building field scaffolding work, a kind of connecting pin hand cradle and body of wall to the company's of drawing wall
Part.
Background technology
In architectural engineering, when building such as scaffold, generally use wall-connecting piece connecting pin hand cradle and body of wall.Wall-connecting piece is one
Plant the special rod member between scaffold and body of wall, be generally divided into flexible wall-connecting piece and rigid connecting tube.Flexible wall-connecting piece, typically adopts
With fine steel rib, rope, bifilar or multiply iron wire.Rigid connecting tube uses push-and-pull rod or the components such as steel pipe, fastener or built-in fitting
Composition.Conventional wall-connecting piece generally uses stay bolt associated methods, embedded steel tube method and rear anchoring process to fix.
During as it is shown in figure 1, use the template construction system of non-aluminum template system to install wall-connecting piece traditionally, general employing is pre-
The method burying horizontal steel tube 101.When using the template construction system of non-aluminum template system, in order to ensure pre-buried company's wall level
Steel pipe 101 does not shifts when casting concrete, it is necessary to additionally open the hole of diameter about 50mm in template so that horizontal steel tube
101 two can pass template, with this fixation.When pulling down model sheetinstallat wall-connecting piece, the inner side metope 1061 of body of wall 106
The vertical steel pipe 102 being respectively not less than 1 meter with a root length degree with outside metope 1062 clamps, then will be pre-by cross buckle 103,104
The horizontal steel tube 101 being embedded in body of wall 106 interfixes with two vertical steel pipes 102, to ensure that horizontal steel tube 101 will not occur
It is perpendicular to the displacement in metope 106 direction.Need to add some back of the body wedges 105, such ability between two vertical steel pipes 102 and body of wall 106
Ensureing that two vertical steel pipes 102 can clamp body of wall 106 and not slide, steel pipe also will not destroy surface of wall concrete simultaneously.As
The vertical rod 401 of external scaffolding 400 is fixed, with the company of playing by the horizontal steel tube 101 of company's wall coil of this wall-connecting piece by cross buckle 402
Wall part fixes the effect of scaffold.Owing to the wall-connecting piece preformed hole diameter of prior art is far longer than in template intrinsic to drawing spiral shell
Rod aperture, it is impossible to accomplish that a hole is dual-purpose, needs additionally to burrow in template, so suitable for application in aluminum alloy pattern plate construction system.
Additionally, due to prior art needs to use the operations such as vertical steel pipe 101 and back of the body wedge 105, and splicing steel pipe in wall both sides, operation
And loaded down with trivial details, waste resource labor intensive again.
When body of wall uses aluminum alloy pattern plate construction system, because aluminum alloy pattern plate needs to avoid because tradition wall-connecting piece punches in template
Positions and dimensions with building change, the template versatility that causes reduces and turnover access times reduce, so conventional flex and
Rigid connecting tube is difficult to carry out.The more commonly used way of aluminum alloy pattern plate construction system be pre-buried thickness be the steel band of 5mm, steel band spills end
Perforate, with Wire pulling scaffold upright rod with fixing scaffold.This technology solves wall-connecting piece and is applied to aluminum alloy pattern plate construction system
Problem.But, such processing mode can cause: time pre-buried, steel band stretches out from aluminum alloy pattern plate edge joint position, causes aluminum alloy pattern plate piece
Can not close；Because steel band stretches out from aluminum alloy pattern plate edge joint position and needs perforate, cause operation and inconvenience thereof；Additionally, workman is figure side
Privately steel band will be combined in template, cause wall-connecting piece serious loss, thus bring the huge wasting of resources and potential safety hazard.
Patent of invention CN103437459 discloses a kind of Screw arbor with nut at both-ends sleeve pipe wall-connecting piece.As in figure 2 it is shown, this wall-connecting piece bag
The Screw arbor with nut at both-ends 201 that the level that includes is through walls, siphunculus 202 entangles Screw arbor with nut at both-ends 201, and its internal diameter mates with the external diameter of Screw arbor with nut at both-ends 201,
And it is consistent with screw hole length.One end of Screw arbor with nut at both-ends 201 is fixed on the inside wall of shear wall 206 by backing plate 203 and nut 204
On face 2061, the other end of Screw arbor with nut at both-ends 201 is then fixed through the tubulose cross bar 205 of a hollow by backing plate 207 and nut 208
One end at tubulose cross bar 205.The other end of tubulose cross bar 205 is then inside due to the nut 204,208 at Screw arbor with nut at both-ends 201 two ends
The bolt hole that is vertically resisted against outside shear wall 206 on metope 2062 of active force at.Tubulose cross bar 201 is same by fastener 502
Scaffold upright rod 501 links together fixing scaffold.This invention is improved by structure, reduces the size of required preformed hole,
The Screw arbor with nut at both-ends hole that stays after form removal can be used as the preformed hole of wall-connecting piece, replace additionally punching in template pre-buried
Steel pipe, is allowed to be suitable for using in the various templates including aluminum alloy pattern plate.Secondly, siphunculus 202 packs tightly Screw arbor with nut at both-ends
201, the Screw arbor with nut at both-ends part that siphunculus can be avoided to encase contacts with concrete, and siphunculus is consistent with bolt hole length, waters walling
During body siphunculus encased Screw arbor with nut at both-ends the part that likely contacts with concrete, stopped connecing of Screw arbor with nut at both-ends and concrete
Touch, so that Screw arbor with nut at both-ends can be extracted out and have enough to meet the need use, decrease pre-buried steel compared with prior art mentioned above
Waste and cut off spent by the steel of prominent metope artificial.Additionally, improved by structure, even the tubulose cross bar of wall can be direct
The active force inside by Screw arbor with nut at both-ends two end nut is fixed, it is not necessary to use vertical steel pipe to ensure will not send out before and after connecting wall coil
Raw displacement.Compared with tradition wall-connecting piece way, decrease the pre-buried siphunculus of other perforate because using existing Screw arbor with nut at both-ends hole
Operation, and decrease and connect the operations such as splicing steel pipe that wall method causes in the clamping of wall both sides cross bar and back of the body forelock because using,
Installation is made to become convenient；Compared with the method for pre-buried steel band, same because need not additionally punch greatly facilitate installation.But
It is that when this invention cannot avoid pouring body of wall, concrete contacts with Screw arbor with nut at both-ends from siphunculus at the gap of template, makes drawing spiral shell
Bar directly contacts with concrete and cannot extract out, thus cannot have enough to meet the need use；Need during installation just can tighten by instruments such as spanners
Screw arbor with nut at both-ends, operation is laborious；The length requiring split bolt have to be larger than the summation of wall thickness and tubular cross pole length, Screw arbor with nut at both-ends
Length is restricted to thickness of wall body in the case of fixing, thus reduces the versatility of Screw arbor with nut at both-ends；Tubulose cross bar vertically against
One end of metope is not fixed with body of wall, during by being perpendicular to the power of tubulose cross bar tubulose cross bar against metope one end it may happen that
Slide, make tubulose cross bar be no longer normal to metope, cause potential safety hazard；Additionally, one end of tubulose cross bar is directly oppressed with body of wall
Contact, it is also possible to cause because pressure is excessive body of wall by tubulose cross bar against one side destroyed.
Summary of the invention
It is an object of the invention to provide a kind of to drawing wall-connecting piece, so that easy construction, without by instrument also during installation
There is relatively high universalizable, eliminate scaffold potential safety hazard and the problem of damage metope simultaneously.
In order to solve above-mentioned technical problem, the present invention by the following technical solutions:
A kind of wall-connecting piece is provided, including having externally threaded Screw arbor with nut at both-ends, the both ends of this Screw arbor with nut at both-ends respectively with fastening
Device threaded；It is characterized in that, the outer wall of this Screw arbor with nut at both-ends is arranged with the built-in pipe of a hollow, the two ends of this built-in pipe
Interpolation one hollow plug respectively；The clamp device of this Screw arbor with nut at both-ends one end is pad and nut；The clamp device of the other end is then
Even wall coil assembly.
The plug of described built-in pipe has straight length and loudspeaker section, and wherein straight length insertion built-in pipe is the most internal, loudspeaker section
Then stretch out embedded pipe orifice.
The straight length external diameter of described plug initiates from straight length less than or equal to the internal diameter of built-in pipe body, described loudspeaker section
External diameter is gradually increased.
The body of described built-in pipe is pp plastic material, and plug is then elastomeric material.
The plug of described built-in pipe is quality of rubber materials.
Described even wall coil assembly includes body and is welded in the nut shim assembly of its one end.
Described nut shim assembly includes concentric shim and the nut being welded and fixed.
Described nut not included in even wall coil assembly is manual adjusting nut, such as mountain type nut, mountain type card or through walls
Silk nut.
The material of described Screw arbor with nut at both-ends is Q345 steel, a diameter of 15mm～20mm.
The body length of described even wall coil assembly is 400～600mm, and Screw arbor with nut at both-ends rotates into this and connects in wall coil assembly
Length is at least 100mm.
The wall-connecting piece that the present invention provides, the plug of its built-in pipe is by the elastomeric material of good seal performance, such as quality of rubber materials structure
Becoming, the loudspeaker section of this plug initiates its external diameter from straight length and is gradually increased, and conveniently loudspeaker section is fixed in template, so that stifled
Seal between head and template, effectively reduce concrete and flow in built-in pipe the probability contacted with Screw arbor with nut at both-ends, thus increase right
Draw the reliability that screw rod can be extracted out from built-in pipe.Secondly, the manual adjusting nut of this wall-connecting piece and the company's of being welded on wall coil assembly
On nut all need not use spanner fastening, can the most manually fasten, facilitate installation.Additionally, even wall coil is near to drawing
Screw rod one end fastens with Screw arbor with nut at both-ends, and Screw arbor with nut at both-ends needs only to realize peace slightly larger than the gross thickness of body of wall and joint nut
Dress, say, that the Screw arbor with nut at both-ends used when pouring body of wall must be also applied for this wall-connecting piece, unrestricted to thickness of wall body, carries
Rise the versatility of Screw arbor with nut at both-ends.Additionally, one end that even wall coil assembly contacts with metope is fastened on metope by securing member, keep away
Having exempted from even wall coil assembly and relative slip occurs with metope, the company's of making wall coil assembly is no longer normal to metope, causes potential safety hazard.This
Outward, contact area when even the pad of the assembly parts of nut washer of the wall coil assembly mouth of pipe is squeezed by increasing concrete wall
Reduce pressure, thus protect concrete wall not damaged.Therefore, the invention provides one and guarantee that Screw arbor with nut at both-ends can have enough to meet the need
Use, can not by instrument manual operation, be applicable to various thickness body of wall, safe and reliable wall-connecting piece.
Accompanying drawing explanation
Fig. 1 is the working condition chart of tradition wall-connecting piece well known in the art.
Fig. 2 is the working condition chart of Screw arbor with nut at both-ends sleeve pipe wall-connecting piece disclosed in patent of invention CN103437459.
Fig. 3 is the structural representation of wall-connecting piece according to a preferred embodiment of the present invention；
Fig. 4 is the axonometric chart of the Screw arbor with nut at both-ends of wall-connecting piece shown in Fig. 3；
Fig. 5 is the side view of the built-in pipe of wall-connecting piece shown in Fig. 3；
Fig. 6 A and 6B is side view and the front view of company's wall coil assembly of wall-connecting piece shown in Fig. 3 respectively；
Fig. 7 A and 7B is top view and the side view of the pad of wall-connecting piece shown in Fig. 3；
Fig. 8 is the axonometric chart of the nut of wall-connecting piece shown in Fig. 3；
Fig. 9 is the working condition chart of wall-connecting piece shown in Fig. 3.
Detailed description of the invention
Below in conjunction with the accompanying drawings, provide presently preferred embodiments of the present invention, and be described in detail, make to be better understood when this
Bright function, feature.
As shown in Figures 3 and 4, being wall-connecting piece 10 according to a preferred embodiment of the present invention, it is right that this wall-connecting piece 10 includes
Drawing screw rod 1, it has an external screw thread and two ends stretch out inner side metope 61 and the outside metope 62 of body of wall 6 respectively, and respectively by fastening
Device is fixed at this both sides metope；Overlap on the periphery wall of the Screw arbor with nut at both-ends 1 between inner side metope 61 and outside metope 62
Connect a built-in pipe 2；The part that one company wall coil assembly 3 one end and Screw arbor with nut at both-ends 1 stretch out outside metope 62 is affixed, and is vertically resisted against
On the outside metope 62 of body of wall 6.
Refer to Fig. 4 again, be the Screw arbor with nut at both-ends 1 of a preferred embodiment of the present invention.This Screw arbor with nut at both-ends 1 can meet simultaneously
Drawknot aluminum alloy pattern plate and the force request of wall-connecting piece 10.Preferably, the material of Screw arbor with nut at both-ends 1 is Q345 steel, and a diameter of 15mm～
20mm。
As it is shown in figure 5, built-in pipe 2 is hollow pipe, including body 21 and two plugs 22.Each plug 22 is respectively provided with straight tube
Section 221 and loudspeaker section 222, loudspeaker section 222 is integrally formed with straight length 221.Two plugs 22 use elastomeric material, its straight length
The external diameter of 221 is less than or equal to the internal diameter of body 21, herein slightly larger than the internal diameter of body 21, inserts the two ends pipe of body 21 respectively
Mouthful thus realize the sealing between plug 22 and body 21；Loudspeaker section 222 is gradually increased from initial outwards its external diameter of straight length 221,
When making casting concrete, loudspeaker section 222 can be fitted in template, so that sealing between plug 22 and template.Preferably, this is pre-
The body 21 of pipe laying 2 is pp plastic material, and plug is quality of rubber materials.
As shown in Figure 6 A and 6 B, it is company's wall coil assembly 3 of a preferred embodiment of the present invention.This connects wall coil assembly 3
Including body 31 and the nut shim assembly 32 being welded on the mouth of pipe of body 31 one end.The pad 321 of this nut shim assembly 32
It is fixed together also by welding manner with nut 322.As shown in Figure 6B, this pad 321 center drilling, external diameter is more than or equal to
The even external diameter of the body of wall coil assembly 3, to reduce pressure by contact area when metope 62 is squeezed outside increasing, from
And protect outside metope 62 not damaged；The internal diameter of this pad 321 then more than the external diameter of Screw arbor with nut at both-ends 1, passes through for Screw arbor with nut at both-ends 1
Wear.This nut 322 has concentric holes with pad 321, and has the female thread that the external screw thread with Screw arbor with nut at both-ends 1 mates, with right
Draw screw rod 1 threaded.This nut 322 is preferably hex nut, and even body 31 and the nut shim assembly 32 of wall coil assembly 3 are excellent
Electing steel material as, even body 31 length of wall coil assembly 3 is preferably 400～600mm.
As shown in 7A-7B schemes, it is provided at a preferred embodiment of the pad 4 of inner side metope 61.This pad 4 again by
Contact area when metope 61 is squeezed inside increase body of wall is to reduce pressure, thus protects metope 61 inside body of wall not ruined
Bad.
As shown in Figure 8, it is shown that being located at a preferred embodiment of the nut 5 coordinated inside body of wall 6 and with pad 4.
Nut 5 has the female thread that the external screw thread with Screw arbor with nut at both-ends 1 mates, with Screw arbor with nut at both-ends 1 threaded.Nut 5 is manually to adjust
Joint nut, can be the mountain type nut as shown in Figure 8 supporting with Screw arbor with nut at both-ends 1 or mountain type card, silk nut through walls etc..
As it is shown in figure 9, be the construction working condition chart of wall-connecting piece 10.When carrying out agent structure concrete pouring construction, first
In template, pull system position arranging built-in pipe 2, then penetrate Screw arbor with nut at both-ends 1, concrete coagulation completes and can exist after form removal
Leave built-in pipe 2 in body of wall 6, now use the present invention.First Screw arbor with nut at both-ends 1 is pulled out and assemble with even wall coil assembly 3, it is ensured that be right
Draw the length of screw rod 1 company of rotating into wall coil assembly 3 at least equal to 100mm.By Screw arbor with nut at both-ends 1 and even wall coil group after being completed
Screw arbor with nut at both-ends 1 is penetrated near the mouth of pipe of the built-in pipe 2 of external scaffolding 300 side from body of wall 6 and stretches out body of wall by the assembly of part 3
Metope 61 inside 6, then, are sleeved on pad 4 on the Screw arbor with nut at both-ends 1 stretching out inner side metope 61, then are screwed in nut 5 to drawing
On screw rod 1, until Screw arbor with nut at both-ends 1 is simultaneously by nut 5 and nut shim assembly 32 the screwing at two ends in even wall coil assembly 3
Till power.Thus, the relative body of wall of Screw arbor with nut at both-ends 2 is fixed and this connects wall coil assembly 3 and is vertically resisted against on body of wall 6.Now connect wall coil
Assembly 3 is mutually perpendicular to the interior vertical rod 301 of external scaffolding 300, fixes them with cruciform fastening for falsework 302, reaches by even wall coil group
Part 3 connects Screw arbor with nut at both-ends 1 and the effect of external scaffolding 300.This completes the installment work of wall-connecting piece of the present invention.Remove
Order is contrary with erection sequence.
In conjunction with Fig. 5 and Fig. 9, the body of built-in pipe 2 combines the length of plug and the consistency of thickness of body of wall 6, so that pre-buried
Two plugs 22 of pipe 2 can when pouring body of wall respectively with the template contacts of both sides sealing, thus prevent concrete from flowing to
Built-in pipe 2 so that the Screw arbor with nut at both-ends 1 directly not contacted with concrete in being inserted in built-in pipe 2 can reuse.
Above-described, only presently preferred embodiments of the present invention, it is not limited to the scope of the present invention, the present invention's is upper
State embodiment can also make a variety of changes.The most every claims according to the present patent application and description are made
Simply, equivalence change with modify, fall within the claims of patent of the present invention.Being of the most detailed description of the present invention
Routine techniques content.
Claims (10)
1. one kind to drawing wall-connecting piece (10), including having externally threaded Screw arbor with nut at both-ends (1), and the both ends of described Screw arbor with nut at both-ends (1)
Respectively with clamp device threaded；It is characterized in that, the outer wall of this Screw arbor with nut at both-ends (1) is arranged with the built-in pipe of a hollow
(2), the two ends of this built-in pipe (2) interpolation one hollow plug (22) respectively；The clamp device of this Screw arbor with nut at both-ends (1) one end is pad
And nut (5) (4)；The clamp device of the other end is then for even wall coil assembly (3).
The most according to claim 1 to drawing wall-connecting piece, it is characterised in that the plug (22) of described built-in pipe has straight length
(221) and loudspeaker section (222), in wherein straight length (221) inserts built-in pipe body (21), loudspeaker section (222) is then stretched out pre-buried
The mouth of pipe.
The most according to claim 2 to drawing wall-connecting piece, it is characterised in that straight length (221) external diameter of described plug (22)
Less than or equal to the internal diameter of built-in pipe body (21), described loudspeaker section (222) is gradually increased from straight length (221) starting outer diameter.
4. according to described in claim 1 or 2 or 3 to drawing wall-connecting piece, it is characterised in that the body (21) of described built-in pipe is pp
Plastic material, plug (22) is then elastomeric material.
The most according to claim 4 to drawing wall-connecting piece, it is characterised in that the plug (22) of described built-in pipe is rubber material
Matter.
The most according to claim 1 to drawing wall-connecting piece, it is characterised in that described even wall coil assembly (3) includes body (31)
With the nut shim assembly (32) being welded in its one end.
The most according to claim 6 to drawing wall-connecting piece, it is characterised in that described nut shim assembly (32) includes that welding is solid
Fixed concentric shim (321) and nut (322).
The most according to claim 1 to drawing wall-connecting piece, it is characterised in that described nut (5) is manual adjusting nut, such as mountain
Type nut, mountain type card or silk nut through walls.
It is the most according to claim 1 to drawing wall-connecting piece, it is characterised in that the material of described Screw arbor with nut at both-ends (1) is Q345 steel,
A diameter of 15mm～20mm.
The most according to claim 1 to drawing wall-connecting piece, it is characterised in that the body (31) of described even wall coil assembly (3) is long
Degree is 400～600mm, and Screw arbor with nut at both-ends (1) rotates into this length connected in wall coil assembly (3) and is at least 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610882540.6A CN106245899A (en) | 2016-10-09 | 2016-10-09 | A kind of to drawing wall-connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610882540.6A CN106245899A (en) | 2016-10-09 | 2016-10-09 | A kind of to drawing wall-connecting piece |
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| Publication Number | Publication Date |
|---|---|
| CN106245899A true CN106245899A (en) | 2016-12-21 |
Family
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| CN201610882540.6A Pending CN106245899A (en) | 2016-10-09 | 2016-10-09 | A kind of to drawing wall-connecting piece |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100197A (en) * | 2017-06-05 | 2017-08-29 | 中建三局集团有限公司 | A kind of detachable water-stop opposite-pulling screw rod erecting device of large steel moulding plate |
| CN111255222A (en) * | 2020-03-27 | 2020-06-09 | 广东华坤建设集团有限公司 | Scaffold wall connecting piece and using method thereof |
| CN111794494A (en) * | 2020-08-14 | 2020-10-20 | 中国建筑第七工程局有限公司 | External scaffold wall connecting piece for full cast-in-place concrete outer wall and using method |
| CN111851985A (en) * | 2020-08-24 | 2020-10-30 | 中建四局建设发展有限公司 | Scaffold wall connecting piece |
| CN113090012A (en) * | 2021-03-27 | 2021-07-09 | 杭州中庆建设有限公司 | Method for plugging hole of wall split screw |
| CN113882654A (en) * | 2021-10-27 | 2022-01-04 | 中国建筑第八工程局有限公司 | Wall connecting device capable of being buckled with outer scaffold through turnover disc |
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| CN202227677U (en) * | 2011-09-15 | 2012-05-23 | 浙江城建建设集团有限公司 | Bolt type detachable wall connecting piece |
| CN203097263U (en) * | 2013-03-18 | 2013-07-31 | 平煤神马建工集团有限公司土建处 | Standardized revolving scaffolding connecting tube |
| CN103255909A (en) * | 2013-05-16 | 2013-08-21 | 南通市达欣工程股份有限公司 | Wall connecting attachment device of construction engineering outer wall scaffold |
| CN206220465U (en) * | 2016-10-09 | 2017-06-06 | 上海宏金设备工程有限公司 | One kind is to drawing wall-connecting piece |
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