Connecting and fixing structure for rectangular steel members

Abstract

The utility model relates to the field of rectangular steel members, in particular to a connecting and fixing structure of a rectangular steel member, which can axially and fixedly connect the steel members, can play an auxiliary supporting role in the circumferential corner positions of the rectangular steel members, and enhances the bending resistance of the joints. Comprising rectangular steel members, rectangular connecting plates are fixedly arranged at the upper ends and the lower ends of the rectangular steel members correspondingly, vertical first fixing holes are formed in the rectangular connecting plates at intervals, and connecting pieces are embedded between the upper rectangular steel members and the lower rectangular steel members and comprise rectangular flat plates, and second fixing holes coincident with the first fixing holes are formed in the edges of the flat plates; the upper side face and the lower side face of the flat plate are fixedly provided with crossed supporting frames correspondingly, and the circumferential outer ends of the supporting frames extend to the corners of the rectangular steel component correspondingly. Detachable fixing pieces are inserted into the first fixing holes and the second fixing holes of the rectangular connecting plates and the flat plates of the upper steel member and the lower steel member respectively, and the steel member is easy to operate, convenient to use and suitable for various application scenes.

Description

Technical Field

[0001] This utility model relates to the field of rectangular steel components, specifically a connection and fixing structure for rectangular steel components. Background Technology

[0002] Steel components refer to composite steel structural members capable of bearing and transmitting loads, constructed from steel plates, angle steel, channel steel, I-beams, welded steel, or hot-rolled H-beams that have been cold-bent or welded and connected by connectors. A rectangular steel component is currently available, a frame structure with a rectangular cross-section. This rectangular steel component requires axial connection during installation. Currently, axial connection is typically achieved by welding the end faces. While this method provides axial connection for the rectangular steel component, it requires on-site welding, which is cumbersome, and the component cannot be disassembled. Furthermore, relying solely on welding for fixation without providing auxiliary support at the circumferential corners of the rectangular steel component is detrimental to enhancing the bending resistance of the connection points. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a connection and fixing structure for rectangular steel components. This structure can fix the steel components axially and provide auxiliary support at the circumferential corners of the rectangular steel components, thereby enhancing the bending resistance of the connection.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a connection and fixing structure for a rectangular steel component, comprising a rectangular steel component, wherein rectangular connecting plates protruding outward from the upper and lower ends of the rectangular steel component are respectively fixedly provided, and vertical first fixing holes are respectively provided at circumferential intervals on the rectangular connecting plates, and a connector is embedded between the upper and lower rectangular steel components, wherein the connector comprises a rectangular flat plate, and a second fixing hole coinciding with the first fixing hole is provided on the edge of the flat plate, and cross-shaped support frames are respectively fixed on the upper and lower sides of the flat plate, and the outer ends of the support frames extend to the corners of the rectangular steel component;

[0005] Detachable fasteners are inserted into the first and second fixing holes of the rectangular connecting plates and flat plates of the upper and lower steel components, respectively.

[0006] As a preferred technical solution, the fastener is a bolt that passes through the first fixing hole and the second fixing hole from top to bottom, and the protruding end of the bolt is provided with a locking nut.

[0007] As a preferred technical solution, the cross-shaped support frame is welded and fixed to the upper and lower sides of the flat plate, respectively.

[0008] As a preferred technical solution, the edges of the flat plate are flush with the edges of the rectangular connecting plate.

[0009] As a preferred technical solution, the outer ends of the side circumference of the support frame are in contact with the inner surface of the corner of the rectangular steel component.

[0010] As a preferred technical solution, the outer ends of the side circumference of the support frame are respectively right-angled structures that fit into the inner surface of the corner of the rectangular steel component.

[0011] As a preferred technical solution, the support frame is provided with support plates perpendicularly to the four sides of the rectangular steel member at the cross intersection point. The inner ends of the support plates are fixedly connected to the cross intersection point, and the outer ends are slidably engaged with the inner surfaces of the four sides of the rectangular steel member.

[0012] Compared with the prior art, this utility model provides a connection and fixing structure for rectangular steel components, which has the following advantages:

[0013] 1. This utility model uses a connector embedded between upper and lower rectangular steel components. The connector includes a rectangular plate with a second fixing hole on the edge of the plate that coincides with the first fixing hole. Cross-shaped support frames are fixed on the upper and lower sides of the plate, and the outer ends of the support frames extend to the corners of the rectangular steel components. In use, the first and second fixing holes coincide, which facilitates connection and fixation by vertical fasteners and is easy to disassemble. After the upper and lower steel components are connected, the support frames can support the corners of the rectangular steel components on both sides of the connection, which can increase the bending resistance of the steel components and the compressive strength of the corners.

[0014] 2. The present invention uses bolts that pass through the first and second fixing holes from top to bottom as fixing components. The protruding end of the bolt is provided with a locking nut. In use, the two rectangular steel components and the connecting parts can be easily fixed together by the bolts and locking nuts without the need for on-site welding. The operation is simple and easy to disassemble and assemble.

[0015] 3. The present invention features a right-angle structure at the outer ends of the side circumference of the support frame, which respectively fits into the inner surface of the corner of the rectangular steel component. In use, the right-angle structure of the support frame fits into the inner surface of the corner of the rectangular steel component, which is beneficial to provide good support for the corner position of the rectangular steel component.

[0016] 4. This utility model has support plates perpendicularly installed at the cross intersection of the support frame towards the four sides of the rectangular steel member. The inner ends of the support plates are fixedly connected to the cross intersection, and the outer ends slide in cooperation with the inner surfaces of the four sides of the rectangular steel member. In use, the support plates can support the four sides of the rectangular steel member at the upper and lower positions of the connection, which helps to enhance the compressive strength of the four sides of the rectangular steel member. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0018] Figure 1This is a three-dimensional structural diagram of the first embodiment of the present utility model;

[0019] Figure 2 A three-dimensional structural diagram of the connector from another angle;

[0020] Figure 3 A three-dimensional structural diagram showing the fit between the upper and lower rectangular steel components, connectors, and fasteners;

[0021] Figure 4 This is a three-dimensional structural diagram of the second embodiment of the present invention;

[0022] Figure 5 This is a three-dimensional structural diagram of the third embodiment of the present utility model.

[0023] The diagram shows: 1. Rectangular steel component; 2. Rectangular connecting plate; 21. First fixing hole; 3. Flat plate; 31. Second fixing hole; 4. Support frame; 41. Right-angle structure; 5. Bolt; 51. Locking nut; 6. Support plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0025] like Figures 1 to 3 As shown, a connection and fixing structure for rectangular steel components includes a rectangular steel component 1. Rectangular connecting plates 2, protruding outwards from the upper and lower ends of the rectangular steel component 1, are respectively fixed to the upper and lower ends. Vertical first fixing holes 21 are spaced apart on the rectangular connecting plates 2. A connector is embedded between the upper and lower rectangular steel components 1. The connector includes a rectangular flat plate 3. The edge of the flat plate 3 has a second fixing hole 31 that coincides with the first fixing hole 21. Cross-shaped support frames 4 are fixed to the upper and lower sides of the flat plate 3, respectively. The outer ends of the support frames 4 extend circumferentially (side circumferentially) to the corners of the rectangular steel component 1. Removable fixing components are inserted into the first fixing holes 21 and second fixing holes 31 of the rectangular connecting plates 2 and the flat plate 3 of the upper and lower steel components 1.

[0026] The fastener is a bolt 5 that passes through the first fixing hole 21 and the second fixing hole 31 from top to bottom, and the protruding end of the bolt 5 is provided with a locking nut 51.

[0027] The cross-shaped support frame 4 is welded and fixed to the upper and lower sides of the plate 3 respectively.

[0028] The edges of the flat plate 3 are flush with the edges of the rectangular connecting plate 2.

[0029] The outer ends of the side circumference of the support frame 4 (the two corners of the rectangular structure) are in contact with the inner surfaces on both sides of the corner of the rectangular steel component 1.

[0030] In use, the first fixing hole 21 and the second fixing hole 31 overlap, facilitating connection and fixation via vertical fasteners and enabling easy disassembly. After the upper and lower steel components 1 are connected, the support frame 4 provides support for the corner positions of the rectangular steel components 1 on both sides of the connection, increasing the bending resistance and compressive strength of the steel components 1 at the corners. Specifically, the two rectangular steel components 1 and the connecting parts can be easily fixed together using bolts 5 and locking nuts 51, eliminating the need for on-site welding, simplifying operation, and facilitating assembly and disassembly. Example 2

[0031] like Figure 4 As shown, the outer ends of the side circumference of the support frame 4 are respectively right-angled structures 41 that fit with the inner surface of the corner of the rectangular steel component 1.

[0032] In use, the right-angle structure 41 of the support frame 4 is attached to the inner surface of the corner of the rectangular steel component 1, which is conducive to providing good support for the corner of the rectangular steel component 1. Example 3

[0033] like Figure 5 As shown, support plates 6 are provided perpendicularly to the four sides of the rectangular steel member 1 at the cross intersection of the support frame 4. The inner ends of the support plates 6 are fixedly connected to the cross intersection, and the outer ends are slidably engaged with the inner surfaces of the four sides of the rectangular steel member 1.

[0034] In use, the support plate 6 can support the four sides of the rectangular steel member 1 at the upper and lower positions of the connection, which helps to enhance the compressive strength of the four sides of the rectangular steel member 1.

[0035] The components used in this utility model are all general standard parts or components known to those skilled in the art, and their structures and principles are well known to those skilled in the art.

[0036] It should be noted that, in this document, the terms "first," "second," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are used only to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0037] The structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them, and are not intended to limit the conditions under which this utility model can be implemented. Any modification of the structure, change of the proportions, or adjustment of the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connection and fixing structure for rectangular steel components, characterized in that: The device includes a rectangular steel component. The upper and lower ends of the rectangular steel component are respectively fixed with rectangular connecting plates that protrude outward from the rectangular steel component. The rectangular connecting plates are respectively provided with vertical first fixing holes at intervals around the perimeter. A connector is embedded between the upper and lower rectangular steel components. The connector includes a rectangular flat plate. The edge of the flat plate is provided with a second fixing hole that coincides with the first fixing hole. The upper and lower sides of the flat plate are respectively fixed with cross-shaped support frames. The outer ends of the support frames extend to the corners of the rectangular steel component. Detachable fasteners are inserted into the first and second fixing holes of the rectangular connecting plates and flat plates of the upper and lower steel components, respectively.

2. The connection and fixing structure for a rectangular steel member according to claim 1, characterized in that: The fastener is a bolt that passes through the first and second fixing holes from top to bottom, and a locking nut is provided at the protruding end of the bolt.

3. The connection and fixing structure for a rectangular steel member according to claim 1, characterized in that: The cross-shaped support frame is welded and fixed to the upper and lower sides of the plate, respectively.

4. The connection and fixing structure for a rectangular steel member according to claim 1, characterized in that: The edges of the flat plate are flush with the edges of the rectangular connecting plate.

5. The connection and fixing structure for a rectangular steel member according to claim 1, characterized in that: The outer ends of the side circumference of the support frame are in contact with the inner surface of the corner of the rectangular steel component.

6. The connection and fixing structure for a rectangular steel member according to claim 1, characterized in that: The outer ends of the side circumference of the support frame are respectively right-angled structures that fit into the inner surface of the corner of the rectangular steel component.

7. The connection and fixing structure for a rectangular steel member according to claim 1, characterized in that: The support frame has support plates perpendicular to the four sides of the rectangular steel component at the cross intersection. The inner ends of the support plates are fixedly connected to the cross intersection, and the outer ends slide against the inner surfaces of the four sides of the rectangular steel component.

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