Cantilever scaffold bearing structure

Abstract

The utility model relates to the technical field of building construction components, in particular to a cantilever scaffold force bearing structure which comprises a back plate, profile steel, an inclined stiffening plate and a vertical stiffening plate. The back plate is a rectangular steel plate; two bolt holes I are formed in the upper part of the back plate; a bolt hole II is formed in the lower part of the back plate; one end of the profile steel is arranged on one side of the backboard; the lower flange of the profile steel is located between the first bolt hole and the second bolt hole. The inclined stiffening plate is of an isosceles trapezoid structure; the two inclined stiffening plates are respectively arranged on two sides of the profile steel; the upper edge of the vertical stiffening plate is fixedly connected with the upper flange of the profile steel, and the lower edge is fixedly connected with the lower flange of the profile steel; the right side of the vertical stiffening plate is connected with a web of the profile steel; the vertical stiffening plate is located at the connecting end of the inclined stiffening plate and the upper flange of the profile steel and is perpendicular to the flange of the profile steel. The supporting strength and supporting stability of the back plate to the profile steel can be improved, the connection reliability is improved, and then the bearing capacity of the profile steel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction components, in particular to a cantilever scaffolding bearing structure. Background Art

[0002] Cantilever scaffolding is widely used in construction. The structure of the supporting components of cantilever scaffolding is a key factor affecting the safety of the scaffolding frame. Existing supporting components are composed of welding one end of the steel section to the back plate and adding ribs between the steel section and the back plate. The ribs are welded between the upper wing plate and the back plate or between the lower wing plate and the back plate, so that the ribs support the steel section. However, the ribs only support the upper or lower wing plate of the steel section, and the force between the upper and lower wing plates is supported only by the web of the steel section. This has low support strength and poor stability. After long-term use, the steel section is prone to deformation and even desoldering, reducing the reliability of the connection and affecting the bearing capacity of the steel section. Utility Model Content

[0003] In view of this, the utility model provides a cantilever scaffolding bearing structure, the main purpose of which is to improve the supporting strength and supporting stability of the back plate to the steel section, improve the reliability of the connection, and further improve the bearing capacity of the steel section.

[0004] In order to achieve the above-mentioned purpose, the present invention mainly provides the following technical solutions:

[0005] The embodiment of the utility model provides a cantilever scaffolding load-bearing structure, comprising: a back plate, a steel section, an oblique stiffening plate and a vertical stiffening plate;

[0006] The back plate is a rectangular steel plate; the back plate has a bilaterally symmetrical structure;

[0007] The upper portion of the back plate has two bolt holes 1; the two bolt holes 1 are symmetrically arranged on the back plate;

[0008] The lower portion of the back plate has a second bolt hole; the second bolt hole is located on the left-right symmetry line of the back plate;

[0009] The steel section is an I-beam; one end of the steel section is fixedly arranged on one side of the back plate; the upper flange of the steel section is flush with the upper end of the back plate; the web of the steel section is located on the left-right symmetry line of the back plate; the lower flange of the steel section is located between the first bolt hole and the second bolt hole;

[0010] The oblique stiffening plate is an isosceles trapezoidal structure, and the two oblique sides are perpendicular to each other;

[0011] There are two oblique stiffening plates; the two oblique stiffening plates are respectively placed on both sides of the section steel; the inner side surfaces of the oblique stiffening plates are fixedly connected to the side surfaces of the upper flange and the lower flange of the section steel; one oblique side of the oblique stiffening plate is fixedly connected to the back plate; the other oblique side of the oblique stiffening plate is flush with the upper flange of the section steel;

[0012] The vertical stiffening plate is a polygonal structure; the upper and lower sides of the vertical stiffening plate are parallel to each other; the left and right sides of the vertical stiffening plate are parallel to each other; the upper and lower sides of the vertical stiffening plate are perpendicular to the left side of the vertical stiffening plate, and there is a chamfer between the upper and lower sides of the vertical stiffening plate and the right side of the vertical stiffening plate;

[0013] The upper side of the vertical stiffening plate is fixedly connected to the upper flange of the steel section; the lower side of the vertical stiffening plate is fixedly connected to the lower flange of the steel section; the right side of the vertical stiffening plate is connected to the web of the steel section; the vertical stiffening plate is located at the connecting end of the oblique stiffening plate and the upper flange of the steel section, and is perpendicular to the flange of the steel section.

[0014] Furthermore, the cross-sectional height of the steel section is 1 / 2 of the height of the back plate.

[0015] Furthermore, the distance between the bolt hole 1 and the upper edge of the back plate is the minimum allowable distance 1;

[0016] The distance between the bolt hole 1 and the left and right edges of the back plate is the minimum allowable distance 1.

[0017] Furthermore, the distance between the second bolt hole and the lower edge of the back plate is the minimum allowable distance two.

[0018] Furthermore, the inner diameter of the second bolt hole is the same as that of the first bolt hole;

[0019] The minimum allowed distance two is equal to the minimum allowed distance one.

[0020] By means of the above technical solution, the cantilever scaffolding load-bearing structure of the present invention has at least the following advantages:

[0021] It can improve the supporting strength and stability of the back plate to the steel section, improve the reliability of the connection, and thus improve the bearing capacity of the steel section.

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1A schematic front view of a cantilever scaffolding load-bearing structure provided by an embodiment of the present utility model;

[0024] Figure 2 A schematic top view of a cantilever scaffolding load-bearing structure provided by an embodiment of the present utility model;

[0025] Figure 3 A side view schematic diagram of a cantilever scaffolding load-bearing structure provided by an embodiment of the utility model;

[0026] Figure 4 A schematic diagram of a back plate in a cantilever scaffolding load-bearing structure provided by an embodiment of the present utility model;

[0027] Figure 5 A schematic diagram of an oblique stiffening plate in a cantilever scaffolding load-bearing structure provided by an embodiment of the present utility model;

[0028] Figure 6 A schematic diagram of a vertical stiffening plate in a cantilever scaffolding load-bearing structure provided by an embodiment of the present utility model;

[0029] Figure 7 A schematic front view of the connection between the middle steel and the back plate of a cantilever scaffolding load-bearing structure provided by an embodiment of the utility model;

[0030] Figure 8 A side view schematic diagram of the connection between the middle steel and the back plate of a cantilever scaffolding load-bearing structure provided by an embodiment of the utility model;

[0031] Figure 9 A schematic front view of the connection between the medium-section steel, back plate and oblique stiffening plate of a cantilever scaffolding load-bearing structure provided by an embodiment of the present invention;

[0032] Figure 10 A side view schematic diagram of the connection between the medium-section steel, back plate and oblique stiffening plate of a cantilever scaffolding load-bearing structure provided by an embodiment of the utility model;

[0033] Figure 11 A schematic diagram of the forward installation of a cantilever scaffolding load-bearing structure provided by an embodiment of the present utility model;

[0034] Figure 12 A schematic diagram of the reverse installation of a cantilever scaffolding load-bearing structure provided in an embodiment of the present utility model.

[0035] As shown in the figure:

[0036] 1 is the back plate, 1-1 is the bolt hole 1, 1-2 is the bolt hole 2, 2 is the steel section, 2-1 is the upper flange, 2-2 is the web, 2-3 is the lower flange, 3 is the oblique stiffener, and 4 is the vertical stiffener. DETAILED DESCRIPTION

[0037] To further illustrate the technical means and effects employed by this utility model to achieve its intended purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, provides a detailed description of the specific implementation methods, structures, features, and effects of this utility model application. In the following description, different references to "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

[0038] like Figures 1 to 12 As shown, an embodiment of the present invention proposes a cantilever scaffolding load-bearing structure, comprising: a back plate 1, a steel section 2, an oblique stiffening plate 3 and a vertical stiffening plate 4; the back plate 1 is a rectangular steel plate; the back plate 1 is a left-right symmetrical structure; the upper part of the back plate 1 has two bolt holes 1-1; the two bolt holes 1-1 are symmetrically arranged on the back plate 1; the lower part of the back plate 1 has a bolt hole 2 1-2; the bolt hole 2 1-2 is located on the left-right symmetry line of the back plate 1, and is used to connect with structures such as walls, thereby ensuring the bearing performance of the load-bearing structure and better solving the positioning problem of the bolt hole 1 during installation in the prior art. The bolt hole 2 1-2 can be fixed with an expansion bolt.

[0039] Preferably, the distance between bolt hole 1-1 and the top edge of back panel 1 is the minimum allowable distance of one; the distance between bolt hole 1-1 and the left and right edges of back panel 1 is the minimum allowable distance of one. This allows the size of back panel 1 to be reduced while ensuring a secure connection between back panel 1 and the wall. Furthermore, preferably, the distance between bolt hole 2-2 and the bottom edge of back panel 1 is the minimum allowable distance of two. This allows the size of back panel 1 to be reduced while ensuring a secure connection between back panel 1 and the wall. Furthermore, preferably, bolt hole 2-2 has the same inner diameter as bolt hole 1-1; and the minimum allowable distance of two is equal to the minimum allowable distance of one to facilitate processing.

[0040] The steel section 2 is an I-beam; one end of the steel section 2 is fixedly mounted on one side of the back plate 1. Preferably, the steel section 2 is secured to the back plate 1 by welding. The upper flange 2-1 of the steel section 2 is flush with the upper end of the back plate 1; the web 2-2 of the steel section 2 is located on the left-right symmetry line of the back plate 1; and the lower flange 2-3 of the steel section 2 is located between bolt hole 1-1 and bolt hole 2-2. Preferably, the cross-sectional height of the steel section 2 is 1 / 2 the height of the back plate 1, ensuring that the back plate 1 has sufficient space to secure the diagonal stiffener 3, enabling the diagonal stiffener 3 to provide stable and reliable support for the steel section 2.

[0041] The diagonal stiffening plates 3 are isosceles trapezoidal in shape, with two perpendicular oblique sides. Two diagonal stiffening plates 3 are provided, one on either side of the steel section 2, improving the out-of-plane stability of the steel section 2. The inner side surfaces of the diagonal stiffening plates 3 are fixedly connected to the side surfaces of the upper flange 2-1 and lower flange 2-3 of the steel section 2, preferably by welding. One oblique side of the oblique stiffening plates 3 is fixedly connected to the back plate 1, preferably by welding. The other oblique side of the oblique stiffening plates 3 is flush with the upper flange 2-1 of the steel section 2.

[0042] The vertical stiffening plate 4 is a polygonal structure; the upper and lower sides of the vertical stiffening plate 4 are parallel to each other; the left and right sides of the vertical stiffening plate 4 are parallel to each other; the upper and lower sides of the vertical stiffening plate 4 are perpendicular to the left side of the vertical stiffening plate 4, and there is a chamfer between the upper and lower sides of the vertical stiffening plate 4 and the right side of the vertical stiffening plate 4; during processing, the two adjacent corners of the rectangular plate can be chamfered. The upper side of the vertical stiffening plate 4 is fixedly connected to the upper flange 2-1 of the steel section 2; the lower side of the vertical stiffening plate 4 is fixedly connected to the lower flange 2-3 of the steel section 2; the right side of the vertical stiffening plate 4 is connected to the web 2-2 of the steel section 2; the vertical stiffening plate 4 is located at the connection end of the oblique stiffening plate 3 and the upper flange 2-1 of the steel section 2, perpendicular to the flange of the steel section 2. The vertical stiffening plate 4 and the oblique stiffening plate 3 are mutually perpendicular. The vertical stiffening steel plate 4 is installed perpendicular to the steel section 2 and corresponds to the web of the steel section 2, forming a larger rigid domain, so that the load-bearing structure has a greater bearing capacity.

[0043] One embodiment of the present invention provides a cantilever scaffolding load-bearing structure that can be installed in either forward or reverse orientation. The installation steps are as follows, both achieving load-bearing functionality and enabling two installation methods to meet varying construction requirements. Double and single holes are provided in the building structure, corresponding to forward and reverse installation of the cantilever scaffolding load-bearing structure.

[0044] Forward installation: fix the double-hole end of the cantilever scaffolding load-bearing structure with a pair of bolts through the reserved through-holes in the building structure. The single-hole end adopts the method of post-drilling on the building structure and fixes the back plate 1 to the structure with expansion bolts.

[0045] Reverse installation: The single-hole end of the cantilever scaffolding's load-bearing structure is secured with a bolt pair through a pre-reserved through-hole in the building structure. The cantilever scaffolding's load-bearing structure is adjusted to ensure alignment. The double-hole end is post-drilled into the building structure, and the backplate 1 is secured to the structure with a pair of expansion bolts. The advantage of reverse installation is that only one through-hole is required, which reduces the precision requirements and makes on-site construction more convenient.

[0046] According to the stress characteristics of the cantilever scaffolding load-bearing structure, the upper part is subjected to tension and shear force, so through-wall bolts are used for fixing to ensure the reliable connection of the cantilever scaffolding load-bearing structure, and the lower part is subjected to pressure and shear force. The expansion bolts can withstand compression and shear, and reduce the cantilever scaffolding load-bearing structure's requirements for the accuracy of reserved through holes.

[0047] An embodiment of the present invention provides a cantilever scaffolding load-bearing structure, which can improve the supporting strength and supporting stability of the back plate 1 on the steel section 2, improve the reliability of the connection, and further improve the bearing capacity of the steel section 2.

[0048] Further explanation, although the terms first, second, etc. can be used to describe various elements in this article, these terms should not limit these elements. These terms are only used to distinguish one element from another element. For example, the first element can be called the second element, and, similarly, the second element can be called the first element, and these terms are only used to distinguish one element from another element. This does not depart from the scope of exemplary embodiments. Similarly, element one and element two do not represent the order of elements, and these terms are only used to distinguish one element from another element. As used herein, the term "and / or" includes any combination and all combinations of one or more associated listed items.

[0049] In the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0050] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0051] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modifications, equivalent changes, and modifications to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A cantilever scaffolding load-bearing structure, characterized in that: Including: back plate, steel section, oblique stiffener and vertical stiffener; The back plate is a rectangular steel plate; the back plate has a bilaterally symmetrical structure; The upper portion of the back plate has two bolt holes 1; the two bolt holes 1 are symmetrically arranged on the back plate; The lower portion of the back plate has a second bolt hole; the second bolt hole is located on the left-right symmetry line of the back plate; The steel section is an I-beam; one end of the steel section is fixedly arranged on one side of the back plate; the upper flange of the steel section is flush with the upper end of the back plate; the web of the steel section is located on the left-right symmetry line of the back plate; the lower flange of the steel section is located between the first bolt hole and the second bolt hole; The oblique stiffening plate is an isosceles trapezoidal structure, and the two oblique sides are perpendicular to each other; There are two oblique stiffening plates; the two oblique stiffening plates are respectively placed on both sides of the section steel; the inner side surfaces of the oblique stiffening plates are fixedly connected to the side surfaces of the upper flange and the lower flange of the section steel; one oblique side of the oblique stiffening plate is fixedly connected to the back plate; the other oblique side of the oblique stiffening plate is flush with the upper flange of the section steel; The vertical stiffening plate is a polygonal structure; the upper and lower sides of the vertical stiffening plate are parallel to each other; the left and right sides of the vertical stiffening plate are parallel to each other; the upper and lower sides of the vertical stiffening plate are perpendicular to the left side of the vertical stiffening plate, and there is a chamfer between the upper and lower sides of the vertical stiffening plate and the right side of the vertical stiffening plate; The upper side of the vertical stiffening plate is fixedly connected to the upper flange of the steel section; the lower side of the vertical stiffening plate is fixedly connected to the lower flange of the steel section; the right side of the vertical stiffening plate is connected to the web of the steel section; the vertical stiffening plate is located at the connecting end of the oblique stiffening plate and the upper flange of the steel section, and is perpendicular to the flange of the steel section.

2. The cantilever scaffolding load-bearing structure according to claim 1, characterized in that: The cross-sectional height of the steel section is 1 / 2 of the height of the back plate.

3. The cantilever scaffolding load-bearing structure according to claim 1, characterized in that: The distance between the bolt hole 1 and the upper edge of the back plate is the minimum allowable distance 1; The distance between the bolt hole 1 and the left and right edges of the back plate is the minimum allowable distance 1.

4. The cantilever scaffolding load-bearing structure according to claim 3 is characterized in that: The distance between the second bolt hole and the lower edge of the back plate is the minimum allowable distance two.

5. The cantilever scaffolding load-bearing structure according to claim 4, characterized in that: The inner diameter of the second bolt hole is the same as that of the first bolt hole; The minimum allowed distance two is equal to the minimum allowed distance one.

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