CN211421795U

CN211421795U - Three-section type pull rod overhanging external scaffold

Info

Publication number: CN211421795U
Application number: CN201921613472.9U
Authority: CN
Inventors: 王卫国; 熊昱栋; 刘用海; 蔡峻杰; 毛靖波
Original assignee: Ningbo Construction Engineering Group Co ltd
Current assignee: Ningbo Construction Engineering Group Co ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-09-04
Anticipated expiration: 2029-09-25

Abstract

The utility model relates to a three-section pull rod outer scaffolding of encorbelmenting, it includes pull rod assembly and the shaped steel of encorbelmenting, and pull rod assembly includes regulating plate, upper tie, turn buckle, lower link, and turn buckle both ends threaded connection goes up pull rod one end and lower link one end, follows on the shaped steel of encorbelmenting and is equipped with the lug, and the lug is connected with the lower connecting plate locking of lower link one end, and the shaped steel one end welding of encorbelmenting is equipped with the connecting plate. The adjusting plate is bent to form an upper section panel and a lower section panel, a bolt fixing hole is formed in the center of the upper section panel, bolt adjusting holes are formed in the lower section panel along the length of the panel in a uniform arrangement mode, and an upper connecting plate is arranged at the other end of the upper pull rod. During construction, through the embedded sleeve in the building wall body, and cooperate screw rod, nut fixed connection regulating plate and the shaped steel of encorbelmenting, with the bolt adjusting hole locking connection of upper junction plate and regulating plate, readjust turn buckle makes pull rod assembly taut, accomplishes the installation of the outer scaffold frame of encorbelmenting promptly, and the construction is comparatively convenient, reliable, and length easily adjusts, and application scope is wide.

Description

Three-section type pull rod overhanging external scaffold

Technical Field

The utility model relates to a scaffold frame of encorbelmenting in building construction field is an outer scaffold frame of three section formula pull rods encorbelmenting.

Background

At present, in multilayer and high-rise building engineering, a cantilever scaffold is an indispensable safety protection measure and an operation table, and the personal safety of workers, the engineering construction quality and the engineering construction efficiency are directly influenced. Like the authorization notice No. CN208502206U of chinese patent literature publication, authorization notice day 2019, 15.2.15, the utility model discloses the name is "fabricated section steel scaffold frame of encorbelmenting", it mainly includes cantilever shaped steel part and pull rod assembly, pull rod assembly is including attaching wall angle adjusting part, go up the pull rod, the turn buckle and the lower link, attach through split bolt, nut fixed connection between wall angle adjusting part and the building structure, attach wall angle adjusting part and go up pull rod one end and pass through bolt, nut connection, go up the pull rod other end and turn buckle one end threaded connection, the turn buckle other end and lower link one end threaded connection, the lower link other end with through bolt, nut locking connection between the lug board. Although the pull rod assembly is convenient to connect and capable of adjusting the length, the length adjustment is limited, the adjustment within the range of 350mm can be usually realized, the pull rod assembly has strict requirements on the outer vertical surface of a building during installation, and the pull rod assembly is difficult to apply if the outer vertical surface of the building is special in style or large in layer height change. For example, when building parts such as a bay window are encountered, the bay window is often irregular in shape corresponding to the outer wall surface of the building, and cannot be directly connected with the pull rod assembly, and holes need to be formed in the structural part of the bay window, so that the bay window and the pull rod assembly are connected, but the holes need to be repaired at the later stage, and the risk of leakage exists. In order to solve the problem, the pull rod assembly needs to be inserted into the building along the floating window and fixed with the inner side surface of the building wall, and in such an operation, the situation that the length of the pull rod assembly is not enough is often encountered, so that the application range is limited.

Besides the above problems, the installation and construction of the existing overhanging outer scaffold also has the following problems: 1. the pre-buried sleeve pipe of connecting shaped steel of encorbelmenting leads to positional deviation because of reasons such as concrete vibrates in the construction easily to cause the shaped steel of encorbelmenting to install. 2. The lifting lug used for connecting the pull rod assembly on the cantilever steel is welded and fixed with the cantilever steel, and if the cantilever steel is unreliable in welding and is broken, safety accidents are easily caused.

Based on the above problems, further improvements to the existing cantilever external scaffold structure and construction are needed.

Disclosure of Invention

For overcoming the above-mentioned not enough, the utility model aims at providing a three-section formula pull rod outer scaffold frame of encorbelmenting to this field, make it solve the outer scaffold frame installation of encorbelmenting of the current same kind and be subject to the building structure influence great, pull rod assembly length adjustment is comparatively limited to, and the installation difficulty appears in what the shaped steel specification of encorbelmenting, finally influences the technical problem of outer scaffold frame overall structure reliability. The purpose is realized by the following technical scheme.

The utility model provides an outer scaffold frame of encorbelmenting of three section formula pull rods, this outer scaffold frame of encorbelmenting includes pull rod assembly and the shaped steel of encorbelmenting, and pull rod assembly includes pull rod, turnbuckle, lower link, and turnbuckle both ends are threaded connection upper tie one end and lower link one end respectively, and the shaped steel of encorbelmenting is gone up along being equipped with the lug, and the lug passes through bolt, nut locking connection with the lower connecting plate of lower link one end, and the shaped steel one end welding of encorbelmenting is equipped with the connecting. The cantilever outer scaffold further comprises an adjusting plate, wherein the adjusting plate is bent to form an upper panel and a lower panel, bolt fixing holes are formed in the center of the upper panel, bolt adjusting holes are formed in the lower panel along the plate length and are evenly distributed, an upper connecting plate is arranged at the other end of the upper pull rod, and the upper connecting plate is connected with one bolt adjusting hole of the adjusting plate in a locking mode through a bolt and a nut. In the structure, the adjusting plate, the upper pull rod, the turn buckle and the lower pull rod form a three-section adjusting structure, and the bent adjusting plate is suitable for extending into the inner side of a special building part for fixing construction, such as extending into the inner side of a bay window for fixing construction. Design bolt regulation hole on the regulating plate, increased the length adjustment between pull rod and the regulating plate, make whole pull rod assembly's regulation length improve 650mm by original 350mm, adopt the regulating plate to carry out the coarse tune earlier, reuse basket of flowers screw rod carries out the fine tuning, the length requirement that pull rod assembly need stretch into to carry out the installation in the building has been satisfied, and be suitable for the change of building layer height, the scope that the installation is suitable for has been improved, make things convenient for this outer scaffold of encorbelmenting whole installation construction, and guarantee outer scaffold whole reliability and firmness.

The lower section panel of regulating plate is equipped with the waist type regulation hole that one row of bolt regulation hole replacement was equipped with a rectangular shape for the lower section panel, and the face of this lower section panel is equipped with anti-skidding tooth bar, through bolt, nut locking connection between the upper junction plate of upper link and the waist type regulation hole, and press from both sides between upper junction plate and the panel of waist type regulation hole place and establish anti-skidding backing plate, the face of anti-skidding backing plate be equipped with anti-skidding tooth bar forms the flank of tooth that the meshing was limited slip to and be used for connecting bolt's bolt hole, when bolt, nut with upper junction plate, anti-skidding backing plate, lower section panel locking, form limited slip locking state between anti-skidding backing plate and the lower section panel. Through the structure, the connection length between the adjusting plate and the upper pull rod can be adjusted, and the adjusting and the using are more convenient and flexible.

The lug position of shaped steel encorbelmenting is equipped with and cup joints in the auxiliary stay cover of the shaped steel encorbelmenting, and the auxiliary stay overlaps the top and is equipped with and is used for the centre gripping the splint of lug both sides face, splint and lug through same bolt, nut with the lower connecting plate locking connection of lower pull rod, and during locking connection, splint press from both sides tightly the lug. Through this structure, improve the stability of encorbelmenting of shaped steel, prevent to suspend the problem of inefficacy to the shaped steel that encorbelments because of lug desoldering etc. cause to can reduce specification and the quantity that the shaped steel that encorbelments used to a certain extent.

The included angle between the upper panel and the lower panel in the adjusting plate is 140-165 degrees. The angle range is basically suitable for the installation and construction of the overhanging outer scaffold of various building walls.

Furthermore, a cushion block is arranged between the adjusting plate and the building wall surface, and the cushion block is provided with an embedding groove for embedding the upper section panel of the adjusting plate and a through hole aligned with the bolt fixing hole of the adjusting plate. Through this structure, improve the fastening effect between regulating plate and the wall, prevent to become flexible, and be difficult for forming the destruction to the building appearance.

When the adjusting plate is fixed on a building wall and the bending part of the adjusting plate meets the external corner position of the building, a corner pad is arranged between the external corner position and the bending part of the adjusting plate in a cushioning mode.

The utility model discloses whole construction mounting structure is comparatively simple, and the installation operation is comparatively convenient, and the pull rod assembly length adjustment scope is wider, and the mounted position application scope of the outer scaffold of encorbelmenting is wider, is fit for encorbelmenting the outer scaffold use in all kinds of building construction, or construction method's of the same kind institutional advancement.

Drawings

Fig. 1 is a perspective view of the construction structure of the present invention.

Fig. 2 is a schematic view of the construction plane structure of the present invention.

Fig. 3 is a schematic structural view of the adjusting plate of the present invention.

Fig. 4 is a schematic structural view of an improved scheme of the connection between the adjusting plate and the upper pull rod of the present invention.

Fig. 5 is the structure schematic diagram of the utility model discloses shaped steel of encorbelmenting adds the auxiliary stay cover.

Fig. 6 is the utility model discloses shaped steel and auxiliary stay cover isolating construction sketch map encorbelments.

Fig. 7 is the structure schematic diagram of the cantilever steel connecting plate end face of the utility model.

Fig. 8 is a schematic structural view of the pre-buried sleeve B of the present invention limited to the fixing fastener.

The sequence numbers and names in the figure are: 1. building wall, 101, bay window position, 2, upper tie rod, 201, upper connecting plate, 3, turn buckle, 4, lower tie rod, 401, lower connecting plate, 5, regulating plate, 501, upper panel, 502, lower panel, 503, bolt fastening hole, 504, bolt regulating hole, 505, kidney-shaped regulating hole, 506, anti-skidding reinforcing bar, 6, cushion block, 601, caulking groove, 7, overhanging shaped steel, 701, lifting lug, 702, connecting plate, 7021, regulating hole, 8, positioning reinforcing bar, 9, lower outer scaffold, 10, embedded sleeve A, 11, screw A, 12, backing plate A, 13, corner pad, 14, embedded sleeve B, 15, screw B, 16, backing plate B, 17, anti-skidding backing plate, 18, auxiliary supporting sleeve, 1801, splint, 19, fixing fastener.

Detailed Description

The invention will now be further described with reference to the accompanying drawings.

As shown in fig. 1 and 2, the three-section type pull rod cantilever external scaffold mainly comprises a pull rod assembly and cantilever type steel 7, wherein the pull rod assembly comprises an adjusting plate 5, an upper pull rod 2, a turn buckle 3 and a lower pull rod 4, two ends of the turn buckle are respectively in threaded connection with one end of the upper pull rod and one end of the lower pull rod, a lifting lug 701 is arranged on the upper edge of the cantilever type steel, the lifting lug is in locking connection with the lower connecting plate 401 at one end of the lower pull rod through a bolt and a nut, and one end of the cantilever type steel is welded with the connecting plate 702 with a. The adjusting plate is formed by bending to form two sections of panels, and is divided into an upper section panel 501 and a lower section panel 502, the included angle between the upper section panel and the lower section panel is 140-165 degrees, preferably 145-160 degrees, wherein the center position of the upper section panel is provided with a bolt fixing hole 503, the lower section panel is provided with bolt adjusting holes 504 which are uniformly arranged along the length of the panel, the other end of the upper pull rod is provided with an upper connecting plate 201, and the upper connecting plate is connected with one bolt adjusting hole of the adjusting plate through a bolt and a nut in a locking mode.

Based on the above structure, taking the specific embodiment as an example, the construction method of the present invention is explained as follows:

as shown in fig. 1, 2, 7 and 8, the construction position takes a building wall 1 and a bay window portion 101 as an example, an inner concave cavity is formed on the outer side surface of the bay window portion, and the bay window portion includes an upper bay window portion and a lower bay window portion. When the bay window part and the building wall are poured, pre-embedding construction of an embedded sleeve A10 and an embedded sleeve B14 is performed in advance according to the erection requirement of the overhanging type steel outer scaffold, in the drawing 1, the embedded sleeve A is pre-embedded in the upper bay window part wall surface and the building wall part at the side equal height position, and the embedded sleeve B is pre-embedded in the lower bay window part wall surface and the building wall part at the side equal height position. The embedded sleeves B are arranged in parallel in pairs, when the embedded sleeves B are embedded, the two embedded sleeves B are firstly limited in the fixed clamping pieces 19 in parallel, and then the fixed clamping pieces and the embedded sleeves B are embedded into corresponding walls. The fixed clamping piece adopts a structure with symmetrical clamping openings, and the embedded sleeve B is clamped and positioned in the clamping openings. Next, the cantilever steel 7 and the pull rod assembly are installed, wherein the connecting plate 702 of the cantilever steel is provided with two connecting holes which are connected with two embedded sleeves B14 in an aligning manner, and one of the connecting holes is a waist-shaped adjusting hole 7021, so that the connection and alignment operations are facilitated. The concrete installation and construction steps of the overhanging type steel outer scaffold are as follows:

firstly, a lower-layer external scaffold 9 is built, and two overhanging section steels 7 are supported to corresponding mounting positions through the lower-layer external scaffold; the actual construction is not limited to two overhanging section steels, and the two overhanging section steels are selected for the convenience of explanation in the embodiment.

Secondly, a screw B15 is connected in the embedded sleeve B14 in a penetrating manner, one end of the screw B extends out of the embedded sleeve B and then is connected with a backing plate B16 in a penetrating manner and is connected with a nut locking limit, the other end of the screw B extends out of the embedded sleeve B and then is connected with a connecting hole of a connecting plate 702 at one end of the overhanging section steel 7 in a penetrating manner and is locked with a connecting nut, and the overhanging section steel and the building wall are fixed through the screw B, the backing plate B and nuts at two ends;

thirdly, welding a positioning steel bar 8 for inserting an upper-layer external scaffold above the cantilever steel 7;

fourthly, the two overhanging section steels 7 are respectively and correspondingly connected with a pull rod assembly, and the lifting lugs 701 on the upper edges of the overhanging section steels are in locking connection with the lower connecting plates 401 of the corresponding pull rod assembly lower pull rods 4 through bolts and nuts. One of the pull rod assemblies extends into the inner side of the building wall from the space between the upper bay window part 101 and the lower bay window part 101, i.e. the adjusting plate 5 in the pull rod assembly is correspondingly connected to the inner side surface of the bay window part. The other tie rod assembly is connected to the outer wall surface of the building wall, namely an adjusting plate in the tie rod assembly is correspondingly connected with the outer wall surface of the building wall;

fifthly, installing an adjusting plate 5, enabling a screw A11 to penetrate into a corresponding embedded sleeve A10, enabling one end of the screw A to extend out of the embedded sleeve A and then penetrate through a backing plate A12 and be connected with a nut to lock and limit, enabling the other end of the screw A to extend out of the embedded sleeve A and then penetrate through a bolt fixing hole 503 of an upper section panel 501 of the adjusting plate, and locking a connecting nut, namely, the adjusting plate and the building wall are fixed through the screw A, the backing plate A and nuts at two ends;

sixthly, adjusting the turn buckle 3 in each pull rod assembly to enable the upper connecting plate 201 of the upper pull rod 2 to be in locking connection with a corresponding bolt adjusting hole 504 in the adjusting plate 5 through a bolt and a nut, and after the locking connection, adjusting the turn buckle again to keep the upper pull rod and the lower pull rod in a tensioned state;

and seventhly, checking and adjusting the connection tightness state of each connection part, and dismantling the lower-layer outer scaffold 9 to finish the installation and construction of the cantilever outer scaffold.

In the above-mentioned work progress, when regulating plate 5 was fixed in building wall, when its position of buckling met building external corner position, the angle pad 13 was established to the pad between external corner position and the regulating plate position of buckling, formed effectual protection to the external corner position of building.

As shown in fig. 4, the lower panel 502 of the adjusting plate 5 may also be designed to have a long strip waist-shaped adjusting hole 505, and the surface of the lower panel is provided with an anti-slip tooth bar 506, the upper connecting plate 201 of the upper pull rod 2 is locked with the waist-shaped adjusting hole by a bolt and a nut, and an anti-slip pad 17 is sandwiched between the upper connecting plate and the panel with the waist-shaped adjusting hole, the surface of the anti-slip pad is provided with a tooth surface that forms a slip-proof mesh with the anti-slip tooth bar, and a bolt hole for connecting the bolt, when the upper connecting plate, the anti-slip pad, and the lower panel are locked by the bolt and the nut, a slip-proof locking state is formed between the anti-slip pad and the lower. Through the structure, the connection length between the adjusting plate and the upper pull rod can be adjusted, and the adjusting and the using are more convenient and flexible.

As shown in fig. 5 and 6, in order to prevent the suspension failure of the overhanging section steel caused by the desoldering of the lifting lug 701 of the overhanging section steel 7, an auxiliary support sleeve 18 may be designed, a clamping plate 1801 for clamping two side surfaces of the lifting lug is arranged at the top of the auxiliary support sleeve, the clamping plate and the lifting lug are locked and connected with the lower connecting plate 401 of the lower pull rod 4 through the same bolt and nut, and when the locking and connecting are performed, the clamping plate clamps the lifting lug, and the auxiliary support sleeve plays an auxiliary support role for the overhanging section steel. When the lug appears the desoldering fracture with the shaped steel of encorbelmenting, the auxiliary stay cover can be dead with the shaped steel locking of encorbelmenting to prevent that the shaped steel of encorbelmenting suspends in midair inefficacy, guarantee the safety of construction.

As shown in fig. 3, in order to improve the fastening effect between the adjusting plate 5 and the building wall surface and prevent loosening, a spacer 6 may be disposed between the adjusting plate and the building wall surface, the spacer is provided with an embedding groove 601 for embedding the upper panel of the adjusting plate and a through hole for passing through the screw a11, and the spacer is clamped and fixed between the adjusting plate and the building wall surface when the screw a and the corresponding nut are locked. Through the cushion, increase area of contact connects more reliably.

In order to improve the firmness and stability of the embedded sleeves A10 and B14 during embedding, the embedded sleeves A and B are provided with at least two radial clamping ribs along the axial direction, namely the embedded sleeves are axially limited in the building wall 1 through the clamping ribs.

The above contents are intended to illustrate the technical means of the present invention, and do not limit the technical scope of the present invention. Obvious modifications or substitutions for the present invention by a person of ordinary skill in the art in combination with the prior art also fall within the protection scope of the present invention.

Claims

1. A three-section type pull rod cantilever external scaffold comprises a pull rod assembly and cantilever section steel (7), wherein the pull rod assembly comprises an upper pull rod (2), a turn buckle (3) and a lower pull rod (4), two ends of the turn buckle are respectively connected with one end of the upper pull rod and one end of the lower pull rod in a threaded manner, a lifting lug (701) is arranged on the upper edge of the cantilever section steel, the lifting lug is connected with a lower connecting plate (401) at one end of the lower pull rod in a locking manner through a bolt and a nut, and one end of the cantilever section steel is welded with a connecting plate with a connecting hole; the cantilever outer scaffold is characterized by further comprising an adjusting plate (5), wherein the adjusting plate is bent to form an upper section panel (501) and a lower section panel (502), bolt fixing holes (503) are formed in the center of the upper section panel, bolt adjusting holes (504) are formed in the lower section panel along the plate length in a uniform arrangement mode, an upper connecting plate (201) is arranged at the other end of the upper pull rod (2), and the upper connecting plate is connected with one bolt adjusting hole of the adjusting plate in a locking mode through a bolt and a nut.

2. The three-section type pull rod cantilever external scaffold according to claim 1, wherein the lower section panel (502) of the adjusting plate (5) is provided with a row of bolt adjusting holes (504) and replaced with a lower section panel provided with a long strip waist-shaped adjusting hole (505), the surface of the lower section panel is provided with an anti-slip toothed bar (506), the upper connecting plate (201) of the upper pull rod (2) is locked and connected with the waist-shaped adjusting hole through bolts and nuts, an anti-slip backing plate (17) is clamped between the upper connecting plate and the panel with the waist-shaped adjusting hole, the surface of the anti-slip backing plate is provided with a tooth surface which is meshed with the anti-slip toothed bar and a bolt hole for connecting the bolts, and when the upper connecting plate, the anti-slip backing plate and the lower section panel are locked through the bolts and the nuts, the anti-slip locking state is formed between the anti-slip backing plate and.

3. The three-section type pull rod overhanging external scaffold according to claim 1, wherein an auxiliary support sleeve (18) sleeved on the overhanging section steel is arranged at the position of the lifting lug (701) of the overhanging section steel (7), a clamping plate (1801) used for clamping two side faces of the lifting lug is arranged at the top of the auxiliary support sleeve, the clamping plate and the lifting lug are in locking connection with a lower connecting plate (401) of the lower pull rod (4) through the same bolt and nut, and the clamping plate clamps the lifting lug when in locking connection.

4. The three-section type pull rod overhanging external scaffold according to claim 1, characterized in that the included angle between the upper panel (501) and the lower panel (502) in the adjusting plate (5) is 140-165 °.

5. The three-section type pull rod overhanging external scaffolding according to claim 1 is characterized in that a spacer (6) is provided between the adjusting plate (5) and the building wall surface, and the spacer is provided with a caulking groove (601) for caulking the upper panel (501) of the adjusting plate and a through hole aligned with the bolt fixing hole (503) of the adjusting plate.

6. The three-section type pull rod overhanging external scaffold according to claim 1, wherein when the adjusting plate (5) is fixed on the building wall and the bending part meets the building external corner position, a corner pad (13) is arranged between the external corner position and the adjusting plate bending part.