CN214402708U

CN214402708U - Novel outer scaffold frame tie point is wall spare even

Info

Publication number: CN214402708U
Application number: CN202120165644.1U
Authority: CN
Inventors: 徐超凡; 钟超; 李维勇; 孙毅; 王志庭
Original assignee: China Overseas Construction Ltd
Current assignee: China Overseas Construction Ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-10-15
Anticipated expiration: 2031-01-21

Abstract

The utility model discloses a novel external scaffold tie point wall connecting piece, which comprises a tie steel pipe, wherein the end part of the tie steel pipe is welded and connected with a first mounting plate, and a plurality of detachable anchoring components are symmetrically arranged on the first mounting plate; one end of the drawknot steel pipe, which is close to the first mounting plate, is also movably connected with an auxiliary connecting assembly; the wall connecting piece has simple structure, easy assembly and disassembly and high connecting strength and stability; because for back anchor mounting process, the construction type restriction is not used basically during the installation, especially when meetting whole span continuous vertical structure, like during the east west gable large-span structure that mentions in the background art, not only can select the boundary beam anchor drawknot, also can select direct mount on vertical structure, has ensured that interval, position etc. that the wall spare set up accord with the standard requirement.

Description

Novel outer scaffold frame tie point is wall spare even

Technical Field

The utility model relates to scaffold frame technical field, concretely relates to novel outer scaffold frame drawknot point is wall spare even.

Background

In the building engineering, the outer frame wall connecting piece is used for connecting the scaffold body with a building main body structure, and the requirements of double-row scaffolds with the height of more than 24m are specified in the technical safety standards of fastener type steel pipe scaffolds for building construction JGJ 130-2011. The wall-attached drawknot realized by the wall connecting piece plays an important role in strengthening the overall stability of the scaffold, improving the stable bearing capacity of the scaffold and avoiding major accidents such as toppling or collapsing.

The existing drawknot mode is mostly a steel pipe pre-buried formula, and is pre-buried in the structure boundary beam with a plurality of short steel pipes according to the interval requirement of regulation before major structure concrete placement, treats that concrete placement accomplishes, selects for use the steel pipe that length is fit for to link to each other short steel pipe and scaffold frame pole setting to accomplish the drawknot. Although the drawknot mode is simple and convenient to install, the drawknot mode is greatly influenced by the structure position. If a small-span continuous vertical structure exists at the preset position of the wall connecting piece, the embedded steel pipe cannot be strictly set according to the requirements that the embedded steel pipe is not more than two spans, three spans or deviates from a main node by more than 300mm in the specification; if even the position is preset to the wall spare and is the continuous vertical continuous structure of large-span (often in high-rise dwelling house, frame shear structure gable position), because of losing pre-buried position, can't set up according to the mode of pre-buried steel pipe this moment and draw the node quantity not enough, it is very unfavorable to scaffold overall stability.

For example, in the 2014, the scaffold wall connecting piece and the scaffold wall connecting structure are disclosed by the Chinese utility model patent (publication number: CN203795825U), and the scaffold wall connecting piece and the scaffold wall connecting structure comprise stud bolts, steel plates, steel pipes, outer nuts and inner nuts, wherein the stud bolts pass through mounting holes in the wall body, the steel plates are attached to the wall body and fastened, and the steel pipes are welded on the steel plates, so that the steel pipes and the scaffold can be fastened by using fasteners when the scaffold is built, and the connection between the wall body and the scaffold is realized. However, in order to ensure sufficient connection strength during installation of the wall connecting piece, the stud bolt is adopted, on one hand, the stud bolt needs to penetrate through the wall, and the difficulty of sealing and water proofing of the wall is increased after construction is completed; on the other hand, one end of the stud bolt is arranged in the steel pipe, so that the long steel pipe is inconvenient to install in a connection mode, and a tool is difficult to extend into the steel pipe.

Disclosure of Invention

The utility model aims at providing a novel outer scaffold frame drawknot point is wall spare even to the problem that prior art exists.

In order to achieve the above object, the utility model adopts the following technical scheme:

a novel external scaffold tie point wall connecting piece comprises a tie steel pipe, wherein the end part of the tie steel pipe is connected with a first mounting plate in a welding mode, and a plurality of detachable anchoring components are symmetrically arranged on the first mounting plate; the drawknot steel pipe is close to the one end of first mounting panel still swing joint has auxiliary connection subassembly.

The wall connecting piece has simple structure, easy assembly and disassembly and high connecting strength and stability; because for back anchor mounting process, the construction type restriction is not used basically during the installation, especially when meetting whole span continuous vertical structure, like during the east west gable large-span structure that mentions in the background art, not only can select the boundary beam anchor drawknot, also can select direct mount on vertical structure, has ensured that interval, position etc. that the wall spare set up accord with the standard requirement.

The wall connecting piece is connected with the outer wall body by the anchoring component, so that the wall connecting piece is arranged on the outer side vertical surface of the main body structure, the subsequent secondary structure or door and window installation operation is not influenced, secondary hole blocking and plastering are avoided, and the water seepage hidden danger of the building is greatly reduced.

The wall connecting piece is mainly different from the existing embedded type pulling point in that the connecting mode of the pulling point and the main body structure is different, and the connecting mode is safe and reliable through design checking calculation and actual pulling tests.

The setting of auxiliary connection subassembly can further improve the stability of drawknot steel pipe shares partial tension and compression atress, is using longer during the drawknot steel pipe, also can guarantee safe atress. Will auxiliary connection subassembly sets up to the activity, can improve the flexibility performance of its connection, can select the position that needs support according to actual construction needs to and conveniently avoid outer scaffold, avoid the mutual interference between the component.

By arranging the anchoring member on the first mounting plate, the use of tools during assembly and disassembly is facilitated.

The wall connecting piece is processed by adopting structural parts such as steel pipes, steel plates and the like which are easy to obtain, has the characteristics of simple and convenient installation, material turnover and low cost, not only meets the construction safety requirement, but also reduces the material loss, and has wide application range.

Furthermore, the anchoring member is an expansion bolt, the four corners of the first mounting plate are respectively provided with centrally symmetrical bolt holes, the expansion bolt respectively penetrates through the bolt holes, and the outer side of the expansion bolt is further provided with a locking nut.

The expansion bolt is adopted for connection, so that convenience is realized, the connection strength can be ensured, and the stress balance can be ensured due to the centrosymmetric arrangement; the locking nut can further lock the first mounting plate and has an anti-loosening effect.

Further, the hollow space of the bolt holes in the same row or the same column is 90mm, the distance between the hole centers of the bolt holes and the edge of the first mounting plate is 30mm, and the diameter of each bolt hole is 14 mm; the expansion bolt is M12 multiplied by 100mm in size, the diameter of a drilled hole is not less than 16mm during installation, and the depth of the drilled hole is not less than 80 mm.

By adopting the wall connecting piece with the size, the size proportion relation of each part is reasonable, the material use is reduced, the construction is convenient, meanwhile, the connecting strength of the corresponding grade can be ensured, and the integral stability of the external scaffold is very favorable.

Further, the first mounting plate is a steel plate, and the size of the first mounting plate is 150mm × 150mm × 4 mm; the diameter of the drawknot steel pipe is 48 mm.

Furthermore, the length of the steel tube is the sum of the distance from the inner row rod of the outer scaffold to the wall, the row distance of the outer scaffold and the reserved distance of the outer end part, the reserved distance of the outer end part is not less than 100mm, and the wall thickness of the steel tube is not less than 2.8 mm.

By adopting the length of the drawknot steel pipe, enough connecting and installing space can be ensured on the inner side and the outer side of the outer scaffold, and the erection and the fixation of the outer scaffold are facilitated.

Furthermore, the drawknot steel pipe is vertically welded in the middle of the first mounting plate to form a right-angle welding line, and the welding leg is not less than 4 mm. The welding seam formed in this way can ensure the connection strength and must meet higher welding process requirements.

Furthermore, the auxiliary connecting assembly comprises a hoop sleeved on the drawknot steel pipe, and an elastic washer is arranged between the hoop and the drawknot steel pipe; the outer circumference of clamp has set firmly first articulated seat, swing joint has the connecting rod on the first articulated seat, the other end swing joint of connecting rod is on the articulated seat of second, the articulated seat of second sets firmly on the second mounting panel.

The clamp can be axially adjusted on the drawknot steel pipe according to actual conditions, and can also rotate to adjust circumferential angles, the orientation and the inclination angle of the connecting rod can be flexibly adjusted, and the second mounting plate is also fixed on the outer wall body in a threaded connection mode; the first hinged seat and the second hinged seat have basically the same structure and provide bearing conditions for rotation and supporting stress of two ends of the connecting rod; the elastic washer can increase friction force, avoids displacement after the clamp is fixed, and can also produce deformation to enable the clamp to be clamped more tightly.

Furthermore, first articulated seat is that a pair of symmetry sets up connection piece on the clamp circumference is a pair of connect through the articulated shaft between the connection piece the connecting rod, the outside of connection piece be equipped with a pair of with the reinforcing plate of clamp consolidation improves support and joint strength.

Furthermore, a circumferential groove is formed in the inner circumference of the hoop, and the middle upper part of the groove is provided with an inwards concave waist restraining part; the elastic gasket is an open ring, the section of the elastic gasket is 8-shaped, and the middle lower part of the elastic gasket is clamped in the groove.

The flexibility of circumferential deformation of the non-closed elastic gasket is improved by adopting the non-closed elastic gasket, and the structure of the groove can clamp the elastic gasket to prevent the elastic gasket from falling off and provide sufficient deformation space.

Furthermore, the first mounting plate is embedded in the outer wall body, and a groove formed on the outer wall body in an embedded mode can also support and clamp the first mounting plate, and certainly can also be directly screwed on the outer surface of the outer wall body; the auxiliary connecting assembly is supported below the drawknot steel pipe or tensioned above or at two sides of the drawknot steel pipe.

Compared with the prior art, the beneficial effects of the utility model are that: 1. the wall connecting piece has simple structure, easy assembly and disassembly and high connecting strength and stability; the post-anchoring installation process is adopted, so that the installation is basically not limited by the structure type, particularly when the whole span continuous vertical structure is met, not only can the boundary beam anchoring tie be selected, but also the boundary beam anchoring tie can be directly installed on the vertical structure, and the arrangement space, the position and the like of the wall connecting piece are ensured to meet the standard requirements; 2. the wall connecting piece is connected with the outer wall body by adopting the anchoring component, so that the wall connecting piece is arranged on the outer side vertical surface of the main body structure, the subsequent secondary structure or door and window installation operation is not influenced, secondary hole blocking and plastering are avoided, and the water seepage hidden danger of a building is also greatly reduced; 3. the auxiliary connecting assembly is arranged, so that the stability of the steel tube can be further improved, and partial tension and compression stress can be shared; the auxiliary connecting assembly is movably arranged, so that the connecting flexibility of the auxiliary connecting assembly can be improved, and the position needing to be supported can be selected according to the actual construction requirement; 4. the wall connecting piece is processed by adopting structural parts such as steel pipes, steel plates and the like which are easy to obtain, has the characteristics of simple and convenient installation, material turnover and low cost, not only meets the construction safety requirement, but also reduces the material loss, and has wide application range.

Drawings

Fig. 1 is a schematic view of the connection between the steel tie tube of the novel external scaffold tie point wall connecting member and the first mounting plate of the present invention;

fig. 2 is a schematic view of an installation structure of the novel external scaffold tie point wall connecting piece of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 3 (showing a cross-sectional view of the clip);

fig. 5 is a schematic size diagram of the novel external scaffold tie point wall connecting piece of the present invention;

fig. 6 is another connection mode of the auxiliary connection assembly of the novel external scaffold tie point wall connecting piece of the present invention;

in the figure: 1. drawing the steel pipe; 2. a first mounting plate; 3. bolt holes; 4. a right angle weld; 5. an expansion bolt; 6. locking the nut; 7. clamping a hoop; 701. a groove; 702. a waist-binding part; 8. a first hinge mount; 9. a connecting rod; 10. a second hinge mount; 11. a second mounting plate; 12. an elastic washer.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The first embodiment is as follows:

as shown in fig. 1 and 2, the novel external scaffold bracing point wall connecting piece comprises a bracing steel pipe 1, wherein the end part of the bracing steel pipe 1 is connected with a first mounting plate 2 in a welding manner, and a plurality of detachable anchoring components are symmetrically arranged on the first mounting plate 2; the drawknot steel pipe 1 is close to one end of the first mounting plate 2 is also movably connected with an auxiliary connecting assembly.

The setting of auxiliary connection subassembly can further improve drawknot steel pipe 1's stability shares partial tension and compression atress, is using longer during drawknot steel pipe 1, also can guarantee safe atress. Will auxiliary connection subassembly sets up to the activity, can improve the flexibility performance of its connection, can select the position that needs support according to actual construction needs to and conveniently avoid outer scaffold, avoid the mutual interference between the component.

Further, the anchoring member is an expansion bolt 5, centrally symmetrical bolt holes 3 are respectively formed in four corners of the first mounting plate 2, the expansion bolt 5 penetrates through the bolt holes 3, and a locking nut 6 is further arranged on the outer side of the expansion bolt 5.

The expansion bolt 5 is adopted for connection, so that convenience is realized, the connection strength can be ensured, and the stress balance can be ensured due to the centrosymmetric arrangement; the locking nut 6 can further lock the first mounting plate and has an anti-loosening effect.

Further, the drawknot steel pipe 1 is vertically welded in the middle of the first mounting plate 2 to form a right-angle welding seam 4, and the welding leg is not less than 4 mm. The right-angle welding seam formed in this way can ensure the connection strength and must meet higher welding process requirements.

Further, as shown in fig. 3, the auxiliary connection assembly includes a hoop 7 sleeved on the drawknot steel pipe 1, and an elastic washer 12 is arranged between the hoop 7 and the drawknot steel pipe 1; the outer circumference of clamp 7 sets firmly first articulated seat 8, swing joint has connecting rod 9 on the first articulated seat 8, the other end swing joint of connecting rod 9 is on the articulated seat 10 of second, the articulated seat 10 of second sets firmly on second mounting panel 11.

The hoop 7 can be axially adjusted on the drawknot steel pipe 1 according to actual conditions and can also rotate to adjust circumferential angles, the orientation and the inclination angle of the connecting rod 9 can be flexibly adjusted, and the second mounting plate 11 is fixed on an outer wall body in a threaded connection mode; the first hinged seat 8 and the second hinged seat 10 have basically the same structure, and provide bearing conditions for rotation and supporting stress at two ends of the connecting rod 9; the elastic washer 12 can increase friction force, avoid the clamp to produce displacement after being fixed, and also can produce deformation to make the clamp block inseparabler.

Furthermore, first articulated seat 8 is a pair of symmetry and sets up connection piece on the outer circumference of clamp 7, and is a pair of connect through the articulated shaft connecting rod 9 between the connection piece, the outside of connection piece be equipped with a pair of with the reinforcing plate of clamp 7 consolidation improves support and joint strength.

Further, as shown in fig. 4, a circumferential groove 701 is provided on the inner circumference of the clamp 7, and an inner concave girth portion 702 is provided at the middle upper portion of the groove 701; the elastic washer 12 is an open ring, the cross section of the elastic washer 12 is in a shape of a letter "8", the middle lower part of the elastic washer 12 is clamped in the groove 701, and the waist binding part 702 can prevent the elastic washer 12 from falling off.

The flexibility of circumferential deformation of the non-closed elastic gasket 12 is improved, and the structure of the groove 701 can clamp the elastic gasket 12 to prevent the elastic gasket from falling off, so that sufficient deformation space is provided.

Further, the first mounting plate 2 is embedded in the outer wall body, and a groove formed in the outer wall body in an embedded mode can also support and clamp the first mounting plate 2; the auxiliary connecting assembly is supported below the tied steel pipe 1, and the connecting rod 9 provides oblique-pulling support for the tied steel pipe 1 and bears partial stress.

Example two:

this embodiment provides a specific size of the wall connecting member in the first embodiment.

As shown in fig. 5, the hollow space of the bolt holes 3 in the same row or the same column is 90mm, the distance from the hole centers of the bolt holes 3 to the edge of the first mounting plate 2 is 30mm, and the diameter of the bolt holes 3 is 14 mm; the size of the expansion bolt 5 is M12 multiplied by 100mm, the diameter of a drilled hole is not less than 16mm when the expansion bolt is installed, and the depth of the drilled hole is not less than 80 mm.

Further, the first mounting plate 2 is a steel plate, and the size of the first mounting plate is 150mm × 150mm × 4 mm; the diameter of the drawknot steel pipe 1 is 48 mm.

Further, the length of the steel tube 1 is the sum of the distance from the inner row rod of the outer scaffold to the wall, the row distance of the outer scaffold and the reserved distance of the outer end part, the reserved distance of the outer end part is not less than 100mm, and the wall thickness of the steel tube 1 is not less than 2.8 mm.

Example three:

this embodiment provides another kind of connection mode of supplementary coupling assembling in embodiment one.

As shown in fig. 6, the novel external scaffold tie point wall connecting piece comprises a tie steel pipe 1, wherein the end part of the tie steel pipe 1 is welded and connected with a first mounting plate 2, and a plurality of detachable anchoring members are symmetrically arranged on the first mounting plate 2; drawknot steel pipe 1 is close to still be connected with clamp 7 of the one end of first mounting panel 2, the top of clamp 7 articulates there is connecting rod 9, connecting rod 9 is located the top of drawknot steel pipe 1, for drawknot steel pipe 1 provides the pulling force, in order to strengthen the joint strength of drawknot steel pipe.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The novel wall connecting piece for the pulling points of the external scaffold is characterized by comprising a pulling steel pipe, wherein the end part of the pulling steel pipe is connected with a first mounting plate in a welding mode, and a plurality of detachable anchoring components are symmetrically arranged on the first mounting plate; the drawknot steel pipe is close to the one end of first mounting panel still swing joint has auxiliary connection subassembly.

2. The novel external scaffold bracing point wall connecting piece according to claim 1, wherein the anchoring member is an expansion bolt, the four corners of the first mounting plate are respectively provided with a central symmetrical bolt hole, the expansion bolt respectively passes through the bolt holes, and the outer side of the expansion bolt is further provided with a locking nut.

3. The novel external scaffold tie point wall connecting piece of claim 2, wherein the hollow space of the bolt holes in the same row or column is 90mm, the distance between the hole centers of the bolt holes and the edge of the first mounting plate is 30mm, and the diameter of the bolt holes is 14 mm; the expansion bolt is M12 multiplied by 100mm in size, the diameter of a drilled hole is not less than 16mm during installation, and the depth of the drilled hole is not less than 80 mm.

4. The novel external scaffold tie-point wall connecting member of claim 1, wherein the first mounting plate is a steel plate, the size of the first mounting plate is 150mm x 4 mm; the diameter of the drawknot steel pipe is 48 mm.

5. The novel external scaffold bracing point wall connecting piece according to any one of claims 1 or 4, wherein the length of the bracing steel pipe is the sum of the distance from the inner row rod of the external scaffold to the wall, the distance from the outer row of the external scaffold and the reserved distance of the outer end, the reserved distance of the outer end is not less than 100mm, and the wall thickness of the bracing steel pipe is not less than 2.8 mm.

6. The novel external scaffold tie-point wall connecting piece according to claim 1, wherein the tie-steel pipe is vertically welded in the middle of the first mounting plate to form a right-angle welding seam, and the welding leg is not less than 4 mm.

7. The novel external scaffold tie point wall connecting piece of claim 1, wherein the auxiliary connecting component comprises a hoop sleeved on the tie steel pipe, and an elastic washer is arranged between the hoop and the tie steel pipe; the outer circumference of clamp has set firmly first articulated seat, swing joint has the connecting rod on the first articulated seat, the other end swing joint of connecting rod is on the articulated seat of second, the articulated seat of second sets firmly on the second mounting panel.

8. The novel external scaffold tie point wall connecting piece of claim 7, wherein the first hinge seat is a pair of connecting pieces symmetrically arranged on the outer circumference of the hoop, the connecting rod is connected between the pair of connecting pieces through a hinge shaft, and a pair of reinforcing plates fixedly connected with the hoop are arranged on the outer side of the connecting pieces.

9. The novel external scaffold tie point wall connecting piece of claim 7, wherein a circumferential groove is formed on the inner circumference of the clamp, and the middle upper part of the groove is provided with an inward-concave tying waist part; the elastic gasket is an open ring, the section of the elastic gasket is 8-shaped, and the middle lower part of the elastic gasket is clamped in the groove.

10. The novel external scaffold tie point wall connecting piece of claim 1, wherein the first mounting plate is embedded and mounted in the external wall body; the auxiliary connecting assembly is supported below the drawknot steel pipe or tensioned above or at two sides of the drawknot steel pipe.