CN215806835U

CN215806835U - Be applied to support of a finished product gallows

Info

Publication number: CN215806835U
Application number: CN202122205167.XU
Authority: CN
Inventors: 张记仓; 周健; 李明; 胡志才; 林纪律; 陈焕宇
Original assignee: Suzhou Hoogo Construction Buxiliary Co ltd
Current assignee: Suzhou Hoogo Construction Buxiliary Co ltd
Priority date: 2021-07-17
Filing date: 2021-09-13
Publication date: 2022-02-11
Anticipated expiration: 2031-09-13
Also published as: CN114542805B; CN117847315A; CN114542805A; CN216343275U; CN215759664U; CN215928615U; CN216842584U

Abstract

The utility model discloses a bracket applied to a finished product support hanger, which comprises: the cross section of the closed structure is rectangular or square and is enclosed by two first side walls which are oppositely arranged and two second side walls which are oppositely arranged, wherein at least one first connecting part which is matched with at least one second connecting part on the connecting piece in the support hanger frame is arranged on the closed structure. The bracket provided by the utility model adopts a closed structure, namely, corresponding screw holes do not need to be formed in the bracket in advance, and an opening or a notch is not arranged, so that the bracket is prevented from being corroded and polluted by dust or rainwater entering the bracket.

Description

Be applied to support of a finished product gallows

This application claims priority from chinese application CN2021108098366, filed on 7/17/2021, which is incorporated by reference in its entirety.

Technical Field

The utility model relates to the technical field of building auxiliary facilities, in particular to a support applied to a finished product support hanger.

Background

The finished bracket is a bracket system which is directly produced by a factory into a shaped section and various connecting pieces and then delivered to constructors for field assembly. The support system can be used for supporting various pipelines and has important significance in indoor installation of buildings. When the finished bracket is assembled, the bracket and the bracket need to be connected.

Currently, the most common profiles for brackets are usually carbon steel, such as C-channel or U-channel.

However, in the first aspect, because the plasticity of the steel material is poor, the section of the steel material can only be processed into a simple shape, such as a C shape or a U shape, through some complicated processes, which makes the processing of the channel steel costly, time-consuming and labor-consuming. In the second aspect, in order to facilitate installation of the connecting piece, a plurality of installation holes need to be formed in the channel steel in advance, so that the difficulty of the channel steel generation process is undoubtedly further increased, and the processing cost is also increased; and, owing to seted up a plurality of mounting hole, consequently, the bearing capacity of channel-section steel will further reduce. In the third aspect, because the weight of the steel is larger, the weight of the bracket made of the steel is also larger, which undoubtedly increases the carrying difficulty and the installation difficulty of field constructors, thereby increasing the labor intensity of the constructors and simultaneously increasing the bearing requirement of the building structure. In the fourth aspect, the corrosion resistance of the steel material itself is poor, and therefore, the service life of the steel material is seriously affected.

With the intensive research on aluminum alloy materials, compared with carbon steel profiles, due to the addition of alloy components, the aluminum alloy material not only has better plasticity, is easy to machine and form, has better corrosion resistance, prolongs the service life of a bracket, but also has higher hardness and strength, and is lighter (only one third of steel); on the other hand, aluminum alloy sections are subjected to more surface treatments than carbon steel sections, such as sand blasting, polishing, anodizing, coloring, electrophoresis, spraying and the like. Therefore, aluminum alloy materials are adopted to replace carbon steel as a support in more and more application scenes. For example, chinese patent CN109026930B discloses a high strength aluminum alloy C-shaped groove assembly for a comprehensive support and hanger and a C-shaped groove forming process, which includes: c type groove body, angle connecting piece, rotor nut that high strength aluminum alloy made. For another example, chinese patent CNCN208750176U discloses a high strength aluminum alloy double-spliced groove for a comprehensive support and hanger, which comprises a double-spliced groove body of a first groove and a second groove, wherein the first groove and the second groove share a same groove bottom, the groove bottoms of the first groove and the second groove are oppositely opened, and a plurality of process holes are arranged on the groove bottom at intervals along the length direction of the groove bottom; the notches of the first channel and the second channel are both two flanging structures which are symmetrical to the center line of the notches; each flanging extends horizontally towards the inner side and the outer side of the corresponding notch, and the outer surface of each flanging is provided with a rack. The two groove bodies are both made of high-strength aluminum alloy materials through extrusion and drawing by an extrusion and drawing die to improve the strength and the load capacity, and the meshing teeth are arranged on the outer surfaces of the two flanges at the groove openings to improve the anti-sliding capacity of the teeth.

However, the structure of the existing high-strength aluminum alloy bracket still uses the structure of the carbon steel bracket, such as a C-shaped structure, a U-shaped structure, a double-groove structure, and the like, that is, the bracket structure and the corresponding connecting pieces thereof are designed according to the inertia thinking of the traditional design of the channel steel, and the structural design is not performed by combining the advantages of the high-strength aluminum alloy material, so as to better exert the advantages of the high-strength aluminum alloy material.

In view of the above, how to reasonably design the bracket and the connecting piece structure thereof to obtain the comprehensive support and hanger with high load capacity, excellent corrosion resistance and low comprehensive cost has important practical significance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bracket applied to a finished product support hanger, which partially solves or alleviates the defects in the prior art, has high load capacity, excellent corrosion resistance and low comprehensive cost.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a bracket for application to a finished support hanger, the bracket comprising: the cross section of the closed structure is rectangular or square and is enclosed by two first side walls which are oppositely arranged and two second side walls which are oppositely arranged, wherein at least one first connecting part which is matched with at least one second connecting part of the connecting piece in the supporting and hanging frame is arranged on the closed structure.

Further, in some embodiments, the bracket is made of an aluminum alloy material.

Further, in some embodiments, the first connecting portion is a recessed structure formed by the first sidewall being recessed toward a central axis direction of the bracket;

and/or the first connecting part is a concave structure formed by the second side wall sinking towards the central axis direction of the bracket.

Further, in some embodiments, a width of the first connection portion on the first sidewall is less than a width of the first sidewall.

Further, in some embodiments, the width of the first connection on the second sidewall is less than the width of the second sidewall.

Further, in some embodiments, a thickness of the first connection portion on the first sidewall is less than or equal to a thickness of the first connection portion on the second sidewall.

Further, in some embodiments, the width of the first sidewall is less than the width of the second sidewall.

Further, in some embodiments, the second side wall is provided with one first connecting portion near a first end of one of the two first side walls.

Further, in some embodiments, two first connecting portions are disposed on the second side wall, and the two first connecting portions are disposed at two ends of the second side wall at intervals.

Further, in some embodiments, the first connection portion has a trapezoidal cross-section. Has the advantages that:

because each bracket in the combined bracket is made of the aluminum alloy material, compared with a carbon steel bracket, the combined bracket has higher bearing capacity and good corrosion resistance, and the service life of the combined bracket is prolonged; the structure is redesigned, so that corresponding screw holes do not need to be formed in the bracket in advance, and an opening or a notch is not formed, so that dust and rainwater are prevented from entering the inside of the bracket, and the bracket is prevented from being corroded and polluted by rainwater and the like; on the other hand, the combination support is fixed by adopting the redesigned self-tapping screw and the connecting piece with high bearing capacity and shearing resistance, so that the integral high bearing capacity of the combination support is further ensured.

Compared with the traditional tapping screw, the tapping screw provided by the utility model is short, thick, short and large, and has higher bearing capacity and shearing resistance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale. It is obvious that the drawings in the following description are some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive exercise.

FIG. 1 is a schematic structural view of a composite support according to an exemplary embodiment of the present invention;

FIG. 2 is a schematic structural view of a composite support according to another exemplary embodiment of the present invention;

FIG. 3 is a schematic structural view of a composite support according to yet another exemplary embodiment of the present invention;

FIG. 4a is a schematic cross-sectional view of the stent of the first exemplary embodiment in a composite stent according to an exemplary embodiment of the present invention;

FIG. 4b is a schematic cross-sectional view of a second exemplary embodiment of a stent in a composite stent according to an exemplary embodiment of the present invention;

FIG. 4c is a schematic cross-sectional view of a third exemplary embodiment of a stent in a composite stent according to an exemplary embodiment of the present invention;

FIG. 4d is a schematic cross-sectional view of a fourth exemplary embodiment of a stent in a composite stent according to an exemplary embodiment of the present invention;

FIG. 4e is a schematic cross-sectional view of a fifth-ninth exemplary embodiment of a stent in a composite stent in accordance with an exemplary embodiment of the present invention;

FIG. 5 is a schematic structural view of an exemplary embodiment of a first connector of the organizer according to an exemplary embodiment of the present invention;

FIG. 6 is a schematic view of a first link at another perspective of an exemplary embodiment of the present invention in a modular support assembly in accordance with an exemplary embodiment of the present invention;

FIG. 7 is a schematic structural view of an exemplary embodiment of a second connector in a composite bracket according to an exemplary embodiment of the present invention;

FIG. 8 is a structural schematic diagram of an alternate perspective of an exemplary embodiment of a second link in a composite bracket according to an exemplary embodiment of the present invention;

FIG. 9 is a schematic structural view of an exemplary embodiment self-tapping screw in a sectional bracket according to an exemplary embodiment of the present invention;

FIG. 10a is a schematic structural view reflecting the regulation parameters of an exemplary embodiment self-tapping screw in a sectional bracket according to an exemplary embodiment of the present invention;

FIG. 10b is a schematic structural view reflecting the rules of another exemplary embodiment of the self-tapping screw in a sectional bracket according to an exemplary embodiment of the present invention;

FIG. 11 is a view showing the structure of a non-slip portion of a tapping screw according to an exemplary embodiment of the present invention in a sectional bracket according to an exemplary embodiment of the present invention;

FIG. 12 is a view showing the structure of a non-slip portion of a tapping screw according to another exemplary embodiment in a sectional bracket reflecting an exemplary embodiment of the present invention;

FIG. 13 is a schematic view of an exemplary embodiment of a mounting block in a combi-bracket assembly according to an exemplary embodiment of the present invention;

FIG. 14 is a schematic view of an alternative perspective configuration of an exemplary embodiment of a mounting block of a modular support assembly according to an exemplary embodiment of the present invention;

FIG. 15 is a schematic structural view of a mount of another exemplary embodiment of the present invention in a combi-bracket according to an exemplary embodiment of the present invention;

FIG. 16 is a schematic view of an exemplary embodiment of a bundle fastener in a modular rack in accordance with an exemplary embodiment of the present invention.

01-a wall body; 02-a first scaffold; 03-a second scaffold; 0311-a first sidewall, 0312-a second sidewall; 0313-a groove; 04-a first connecting piece; 05 a tube bundle fixing piece; 06, mounting seats; 07 a bridge; 08 air pipes; 10-a second connector; 11 self-tapping screw, 110-thread, 111-self-tapping head, 112-head, 113-anti-slip part, 1130-anti-slip groove; 041-first connection body; 042-a second connection body; 0411 a first connecting plate; 0412 a second web; 0413-first bump; 0414-second bump; 0415 a first threaded hole; 0416-second screw hole; 101-a third connection body; 102 a fourth connection body; 103-a reinforcement; 1011-third projection; 1021-fourth projection.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Herein, suffixes such as "module", "part", or "unit" used to denote elements are used only for facilitating the description of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

Herein, the terms "upper", "lower", "inner", "outer", "front", "rear", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As used herein, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such that the terms "connected," or "connected," as used herein, may be fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Herein, the term "bracket" refers to a groove or ridge or column or beam made of a material such as metal (e.g., steel) or metal alloy (e.g., aluminum alloy) that can bear, fix, and guide various types of pipes and tubes. For example, a plurality of brackets herein may be connected to form a bracket assembly for supporting, securing and guiding various types of conduits, such as cable trays, air ducts, water ducts, and the like. Compared with the conventional open structure or groove structure of the support, such as a C-shaped groove, a U-shaped groove or a concave groove structure, the support breaks through the conventional thinking, and adopts a closed structure, that is, no corresponding notch or opening is formed on any side of the support along the length direction. The "bracket" in this document may also be referred to as a cross beam, a vertical beam, a pillar, a rail body, a mounting rail, etc. depending on the location of installation.

Various parts herein can be machined from aluminum alloy materials. Further, the surfaces of various parts can be subjected to corrosion prevention treatment.

Herein, "self-tapping screw", or self-drilling and self-tapping screw, means a screw with a drill or a bit, which is configured to be inserted through and fixed to a side wall of a support of an enclosure as mentioned herein by means of a special power tool, so that it is not necessary to previously drill holes (for example, mounting holes, fixing holes, connecting holes) in the support of the enclosure, nor to fix the support by means of other components, such as a nut, etc. The self-tapping screws described herein are characterized by being short and bulky (e.g., 27.35-29.85mm in overall length; 8-10mm in diameter) compared to conventional self-tapping screws (which typically have a penetration capacity of up to 6mm, and a diameter of only 4.87mm, or 5.43 mm).

Herein, "opposite-penetrating screw" means that two self-tapping screws herein are respectively penetrated and automatically fixed on two opposite side walls of a bracket of an enclosed structure herein, and pointed tips (e.g., one end having a drill or a bit) of the two self-tapping screws are opposite, or a gap with a negligible size is provided between the two pointed tips, thereby achieving coupling and fastening between the bracket and a connecting part.

The support combination mentioned herein may be that a constructor installs on the construction site, and gradually adds each component extending from the ceiling, the roof beam, the wall surface, etc., or the support combination is assembled in advance, and then the support combination is integrally hoisted on the construction site.

Herein, the "trapezoid" includes both a conventional trapezoid (i.e., a quadrangle in which two sides between the upper base and the lower base are not parallel) and a trapezoid in which two chamfers (e.g., a rounded corner or a chamfered corner such as a chamfered corner) are provided between the two ends and the waist of the upper base/the lower base.

Example one

Referring to fig. 1 to 3, there are shown schematic structural views of a stent assembly according to various exemplary embodiments of the present invention. The stent assembly in some exemplary embodiments comprises: a first bracket (which may also be referred to as a "vertical beam" or "column" in some embodiments) 01, a second bracket (which may also be referred to as a "beam" in some embodiments) 03, a connector (e.g., a first connector 04, or a second connector 10), a self-tapping screw 09, and a mount 06.

In some embodiments, the bracket is applied to a finished support and hanger, and can be combined and connected by a connecting piece and a self-tapping screw 09, wherein the connecting piece is provided with a second connecting part, and the bracket comprises: a closed structure with a rectangular or square cross section is formed by two oppositely arranged first side walls 0311 and two oppositely arranged second side walls 0312, wherein at least one first connecting portion matched with at least one second connecting portion is arranged on the closed structure.

In some embodiments, the support may be configured in different enclosed configurations according to different load bearing requirements and strength requirements, for example, the enclosed configurations may be of the type including: the first sealing structure, the second sealing structure, the third sealing structure and the fourth sealing structure.

In some embodiments, the first connecting portion is a concave structure formed by the first sidewall 0311 being concave towards the central axis direction of the stent (consisting of a groove formed by the outer surface of the first sidewall being concave towards the inner surface thereof and a protrusion formed by the inner surface of the first sidewall being convex towards the central axis direction of the stent);

in some embodiments, the first connecting portion is a concave structure formed by the second sidewall 0312 being concave towards the central axis direction of the stent (consisting of a groove formed by the outer surface of the second sidewall being concave towards the inner surface thereof and a protrusion formed by the inner surface of the second sidewall being convex towards the central axis direction of the stent).

Referring to fig. 4a, in some embodiments, the first stent 01 and the second stent 03 each employ a first closed structure having an approximately "back" or "mouth" shaped cross section, and specifically, the first closed structure includes: a structure with two open ends is formed by two oppositely disposed first side walls 0311 and two oppositely disposed second side walls 0312, wherein a groove 0313 (for matching with a right-angle connector) is respectively disposed on the outer surface of the first side wall 0311 and the outer surface of the second side wall 0312. In specific implementation, the groove 0313 can be formed by the outer surface of the first sidewall 0311 being recessed toward the inner surface thereof, or by the outer surface of the second sidewall 0312 being recessed toward the inner surface thereof.

Further, in order to ensure sufficient stability and bearing capacity, in some embodiments, the inner surface of the first sidewall 0311 is protruded toward the central axis of the bracket, i.e., the first coupling portion (for coupling with the right-angle coupling member and the tapping screw) of the first sidewall is formed with a certain thickness by the above-mentioned groove and the protrusion. Similarly, the inner surface of the second sidewall 0312 can also be convex toward the central axis of the bracket, so that the second sidewall 0312 also forms a first connecting portion with a certain thickness.

Of course, in order to ensure the balance and stability of the bearing capacity, the width (i.e. the length along the X-axis direction in fig. 4 a) of the first connecting portion on the first side wall and the second side wall is slightly smaller than the width of the first side wall and the second side wall, so that the thickness of the connecting portion between the first side wall and the second side wall is thinner (compared with the thickness of the side wall), thereby reducing the weight of the first bracket and the second bracket as a whole, and facilitating the carrying and installation by site operators.

In some embodiments, referring to fig. 4 b-4 d, the thickness of the first connection on the first sidewall (i.e., the spacing between the inner and outer surfaces at the first connection) is less than or equal to the thickness of the first connection on the second sidewall.

Specifically, in some embodiments, the height of the inner surface depression of the first sidewall is less than the height of the inner surface projection of the second sidewall, and the width of the first sidewall is less than the width of the second sidewall.

Further, in some embodiments, the width of the first sidewall is smaller than the width of the second sidewall, and the thickness of the recessed structure on the first sidewall (i.e., the thickness of the first connection portion on the first sidewall) is smaller than the thickness of the recessed structure on the second sidewall (i.e., the thickness of the second connection portion on the second sidewall).

In some embodiments, the width of the first sidewall (i.e., the length of the first sidewall in the X-axis direction in fig. 4 a) is smaller than the width of the second sidewall (i.e., the length of the second sidewall in the Z-axis direction in fig. 4 a), and in particular, referring to fig. 4b, a first connection portion is provided on the second sidewall near a first end of one of the two sidewalls, and a sidewall having a certain width is left on the second sidewall near a second end of the other sidewall because the width of the second sidewall is larger than that of the first sidewall.

In some embodiments, the width of the first sidewall is smaller than that of the second sidewall, two first connecting portions are disposed on the second sidewall, and the two first connecting portions are disposed at two ends of the second sidewall at intervals.

Referring to fig. 4b, the first bracket 01 may also adopt a second closed structure with an approximately rectangular cross section, specifically, the second closed structure also includes the above-mentioned first side wall and second side wall, except that the height (length along the Z-axis direction in fig. 4 a) of the protrusion of the inner surface of the first side wall protruding toward the central axis direction of the bracket is smaller than the height of the protrusion of the inner surface of the first side wall in the first closed structure, and the width of the second side wall is larger than the width of the second side wall in the first closed structure, and one end of the second side wall is provided with a first connection part formed by a groove and a protrusion (that is, the width of the groove and the protrusion is smaller than the width of the second side wall, for example, the width of the groove and the protrusion is equal to about half of the width of the second side wall).

Referring to fig. 4c, the first and second brackets may also adopt a third enclosing structure with an approximately rectangular cross section, specifically, the first side wall of the third enclosing structure is the same as the first side wall shown in fig. 4b, except that two ends of the second side wall are respectively provided with a first connecting portion capable of being matched with the first connecting piece 04.

Of course, in order to adapt to different installation or load requirements, the distance between the two first connecting portions on the second side wall in the third closing structure can be properly adjusted, so as to obtain closing structures with different cross sections. For example, referring to fig. 4d and 4e, if the distance between the two first connecting portions is increased properly, a fourth closed structure with an approximately rectangular cross section can be obtained, i.e., the distance between the two first connecting portions on the second side wall (i.e., the width of the side wall between the two first connecting portions) in the fourth closed structure is larger than the distance between the two first connecting portions on the second side wall (i.e., the width of the side wall between the two first connecting portions) in the third closed structure.

Similarly, in order to adapt to different installation or load requirements, two first connecting parts can be arranged on the first side wall; of course, the distance between the two first connecting portions on the first side wall can be adjusted adaptively to obtain the closed structure with different cross sections. Of course, referring to fig. 4e, the thickness of the first connecting portion on the first sidewall in each of the closed structures may also be the same.

In some embodiments, the first connector 04 (i.e. the right-angle connector) includes two first connector bodies 041 arranged in parallel and cooperable with two brackets (e.g. a first bracket and a second bracket) of the closed structure in the bracket assembly, and a second connector body 042 connecting the two first connector bodies 041, wherein the first connector bodies 041 are provided with second connector portions cooperable with the first connector portions on the brackets.

In some embodiments, referring to fig. 5 and 6, the first connector 04 comprises: two first connection bodies 041 are disposed in parallel, and a second connection body 042 having two ends respectively connected to the two first connection bodies 041, wherein (a central line or a central axis of) the second connection body 042 is perpendicular to the two first connection bodies 041 and is connected to the bottom of the first connection body 041. In other embodiments, the first connector 04 is also referred to as a right angle connector for connection between a first bracket and a second bracket.

In some embodiments, the first connection body 041 includes a first connection plate 0411 and a second connection plate 0412 vertically connected to the first connection plate 0411, and the second connection plates 0412 of the two first connection bodies 041 are connected by a second connection body 042;

wherein the second connecting portion includes a first connecting structure (i.e., a second protrusion 0414) disposed on the first connecting plate 0411 and cooperating with the bracket, and a second connecting structure (i.e., a first protrusion 0413) disposed on the second connecting plate 0412 and cooperating with the second bracket.

Further, in some embodiments, the first connecting portion on the bracket is a concave structure formed by a side wall (including a first side wall and a second side wall) of the bracket being concave towards a central axis direction of the bracket; accordingly, the first connection structure is a second protrusion 0414 formed by extending the first connection plate inward (the side opposite to the two first connection plates) in the thickness direction (i.e., the X direction in fig. 5) and engaged with the first connection part.

Further, in some embodiments, the first connecting portion on the bracket is a concave structure formed by a side wall (including a first side wall and a second side wall) of the bracket being concave towards a central axis direction of the bracket; accordingly, the second connection structure is a first protrusion 0413 formed by extending the first connection plate to the inner side (the side opposite to the two second connection plates) in the thickness direction thereof and engaged with the first connection part.

Preferably, in some embodiments, the first connection portion has a trapezoidal or trapezoidal-like cross section, and since the first connection structure needs to be matched with the first connection portion, the first connection structure has a trapezoidal or trapezoidal-like cross section, so that the first connection structure can be embedded into the first connection portion of the bracket when the first connection plate is matched with the bracket.

Further, in some embodiments, the cross-section of the first connecting structure is in a trapezoid shape with chamfers (including rounded corners, chamfered angles, etc.) at two ends of the upper bottom.

Preferably, in some embodiments, the first connecting portion has a trapezoidal or trapezoidal-like cross section, and since the second connecting structure needs to be matched with the first connecting portion, the second connecting structure has a trapezoidal or trapezoidal-like cross section, so that the second connecting structure can be embedded into the first connecting portion of the bracket when the second connecting plate is matched with the bracket.

Further, in some embodiments, the cross-section of the second connecting structure is in a trapezoid shape with chamfers (including rounded corners, chamfered angles, etc.) at two ends of the upper bottom.

Preferably, in order to ensure the balance and stability of the bearing force, in some embodiments, the thickness (i.e., the length in the Z direction in fig. 5) of the second connection portion (i.e., the first protrusion, the second protrusion) is smaller than the thickness of the first connection body, i.e., the thickness of the first protrusion is smaller than the thickness of the second connection body, and the thickness of the second protrusion is smaller than the thickness of the first connection body.

Further, in some embodiments, the first connecting plate 0411 is provided with at least two first screw holes at intervals along its height direction (i.e., Z direction in fig. 5), and the second connecting plate 0412 is provided with at least one second screw hole along its width direction (i.e., Y direction in fig. 5).

In some embodiments, to improve the load-bearing capacity and stability of the composite stent, the first connection body 041 includes: the first connecting member 0411 and the second connecting member 0412 are vertically connected, wherein the bottom of the second connecting member 0412 is vertically connected to two ends of the second connecting body 041, two first screw holes 0415 are arranged on the first connecting plate 0411 at intervals along the height direction (i.e., the Z-axis direction in fig. 5), a second screw hole 0416 is arranged on the second connecting plate 0412 along the width direction (i.e., the Y-axis direction in fig. 5), and the second screw hole 0416 and the first screw hole 0415 near the bottom of the first connecting plate 0411 are on the same horizontal line.

Further, in order to match the groove of the first connection portion on the side wall of the bracket, the inner surfaces of the two first connection plates 0411 opposite to each other and the inner surfaces of the two second connection plates 0412 opposite to each other are provided with corresponding first and

second protrusions

0413, 0414 along the thickness direction (X-axis direction in fig. 5) to form second connection portions; the first screw hole 0415 and the second screw hole 0416 respectively penetrate through the corresponding protrusions, that is, the two protrusions form a second connection portion where the first connection member 04 is matched with the first connection portion on the bracket.

Of course, in other embodiments, in order to improve the loading capacity and stability of the combined bracket, a plurality of first and second screw holes 0415, 0416 may be respectively provided at the first and second connecting

plates

0411, 0412.

In some embodiments, referring to fig. 7 and 8, the second connector 10 includes: the connecting structure comprises a third connecting body 101 and a fourth connecting body 102 which are vertically connected, wherein the third connecting body 101 and the fourth connecting body 102 are respectively provided with a corresponding screw hole.

Further, in order to match with the groove of the first connecting portion on the bracket, the third connecting body 101 and the fourth connecting body 102 are respectively provided with a third protrusion 1011 and a fourth protrusion 1021 which can match with the groove of the first connecting portion, that is, a third connecting portion.

Further, a reinforcing member 103 is provided at a position where the third connecting body 101 and the fourth connecting body 102 are connected.

In some embodiments, referring to fig. 9, the self-tapping screw 11 includes: a head portion, a shank portion, and a self-drilling and self-tapping bit 111 provided at the tip end of the shank portion (i.e., the end away from the head portion), wherein the shank portion is provided with a thread 110 along the height direction thereof (i.e., the Z-axis direction in fig. 9).

In some embodiments, the self-tapping screw is made of steel (preferably, 410 stainless steel with high rigidity/strength, or alloy B2 steel-4 Cr2MoVNi with good corrosion resistance), and is subjected to heat treatment (e.g., carburizing and quenching), surface treatment (e.g., Tanik 221 method), and has a surface hardness of 500HV or more; core hardness of 250-450HV, and barrel toughness of 15 deg.

In some embodiments, the overall height (or length) L of the self-tapping screw is 27.35-29.85mm, wherein the head height (or length) L2 is 6.35-6.85mm, the shank height (or length) L4 is 21-23mm, and the thread diameter d is: 7.82-8.00 mm; the pitch L0 is: 2.00-2.32mm (preferably 2.12mm), an internal diameter d1 of 6.5-7.00mm, a thread angle alpha (i.e. an included angle alpha formed by two opposite inclined surfaces of two adjacent turns of threads, see fig. 10a) of 55-63 degrees (preferably 60 degrees), and a distance L1 (i.e. the length of the self-tapping bit) between the threads and (the tip of) the self-tapping bit at the front end of the shank is greater than or equal to 6.8 mm.

In some embodiments, the thread length is the difference between the shank length L4 and the self-tapping bit length L1, i.e., the thread length-shank length L4-self-tapping bit L1, e.g., when the self-tapping bit L1 is equal to 6.8mm, the thread length is: 14.2-16.2mm, although in other embodiments the tapping head is greater than or equal to 6.8mm and the thread length may take the value: 13.74-16.2 mm.

In some embodiments, the tapping screw has a thread length as a percentage of the shank length: 59.74% -70.43%, preferably the tapping screw has a thread length in percent with the shank length: 61.74% -70.43%.

In some embodiments, the thread length of the self-tapping screw and the percentage of the length of the self-tapping screw are: 46.03% -54.27%, preferably the percentage of thread length to tapping screw length is: 47.57% -54.27%.

When the bracket in the text is assembled, the bracket has a certain width or thickness, no notch is formed, and no screw hole is pre-formed, so that if the length of the traditional self-tapping screw is adopted, namely a longer self-tapping screw is adopted to directly penetrate through two opposite side walls of the bracket, the penetrating direction of the self-tapping screw is very easy to incline or deviate in the penetrating process, so that the load requirement of the whole combined bracket is reduced, and after the self-tapping screw penetrates through the bracket, a self-tapping cutter head of the self-tapping screw is exposed outside, so that the combined bracket is very unsafe and not attractive. The self-tapping screws are short in length, and in the specific implementation, the two opposite side walls of the support can be respectively provided with the self-tapping screws (preferably symmetrically arranged), so that the integral load requirement of the combined support is guaranteed, accidents such as scratching and hanging caused by the fact that self-tapping tool bits are exposed outside are avoided, and the safety and the attractiveness of the combined support are improved.

Because the traditional bracket is provided with the opening or the notch, one bracket can be directly inserted into the other bracket, for example, both ends of the cross member are inserted into the grooves of the posts at both sides, respectively, and then fixed by means of the connecting parts, etc., and thus, the requirements on the bearing capacity and the shearing resistance of the screw are not high, however, the bracket in the text is not provided with the notch, therefore, when assembled, the self-tapping screw can be fixed and bear load only by the specific connector (for example, a right-angle connector or an L-shaped connector) in combination with the self-tapping screw, and therefore, which has high requirements on the load-bearing capacity and the shear resistance of the connecting piece and the tapping screw, in view of this, the diameter of the tapping screw herein is much larger than that of the existing conventional tapping screw, so as to increase the load-bearing capacity and the shear resistance thereof, thereby making the tapping screw herein short and bulky as a whole as compared with the conventional tapping screw.

In some embodiments, the bottom of the head 112 of the tapping screw 11 is provided with a non-slip pad 113 in the shape of a disc (with a height L3 of 2.2-2.5mm and a diameter of 15-16 mm). In particular, the bottom of the cleat 113 has a plurality of circumferentially spaced grooves 1130, see FIG. 11, or protrusions.

Referring to FIG. 12, in other embodiments, the bottom of the cleat 113 may also employ retaining grooves 1131, such as 18-tooth retaining grooves.

Referring to fig. 1, 2 and 13, 14 and 15, in some embodiments, in order to facilitate fixing of a first bracket (or column) to a building body (e.g., a wall), a mount 06 may be provided on a top of the first bracket, and specifically, the mount 06 includes: the positioning support 061 can be sleeved on the side wall of the first support and used for positioning the top of the first support, and the fixing piece 062 can be fixed on a building body, wherein the top of the positioning support 061 is connected with the fixing piece 062, and the central axis or the central line of the positioning support 061 is vertical to the central axis or the central line of the fixing piece 062.

In some embodiments, the fixing member 062 has screw holes formed at both ends thereof to be engaged with the tapping screws.

In some embodiments, to mate with the first support, the structure may be the same as the first support (e.g., see fig. 1 and 13, 14, the positioning support 061 may also be a first enclosing structure when the first support is a first enclosing structure, or the positioning support 061 may also be a third enclosing structure when the first support is a third enclosing structure, see fig. 2 and 15), except that it may be slightly larger in size than the first support.

In some embodiments, to further improve stability, a reinforcement 063 is provided between the fixing member 062 and the positioning bracket 061, see fig. 13.

In some embodiments, referring to fig. 1 and 16, to facilitate installation of tubular members such as water pipes, the sectional bracket further comprises: the bundle fixture 05. Specifically, this tube bundle fixing piece 05 includes first arc, second arc to and set up the mount pad in second arc bottom, and the respective opening part of first arc and second arc is provided with the connection journal stirrup, thereby when the opening part butt joint of two arcs, and when fixing its connection journal stirrup through fasteners such as screws, it forms a circular mounting, thereby fixes tubular such as water pipe between two arcs, and the accessible sets up fasteners such as above-mentioned self-tapping screw on the mount pad and fixes it on support (for example crossbeam).

The first bracket or the second bracket can adopt the first closed structure, the second closed structure, the third closed structure or the fourth closed structure according to actual needs; of course, any combination can be used according to actual needs. For example, referring to fig. 1, two first brackets (or two vertical columns) adopt a first closed structure, and four second brackets (or four cross beams) between the two first brackets carry different components as required, for example, the bridge 07, the air duct 08 and the water pipe respectively adopt a first closed structure, a second closed structure, a third closed structure or a fourth closed structure. Alternatively, referring to fig. 2, the first brackets on two sides of the three first brackets (or three columns) adopt a first closed structure, the first bracket in the middle adopts a third closed structure, and the four second brackets (or four beams) between two adjacent first brackets adopt different parts as needed, for example, the bridge frame 07, the air duct 08 and the water duct respectively adopt the first closed structure, the second closed structure, the third closed structure or the fourth closed structure. Of course, the four second brackets (or the four beams) can also adopt one, two or three of the first closed structure, the second closed structure, the third closed structure and the fourth closed structure.

When assembled herein, the first connecting member 04 (e.g., right-angle connecting member) and the second connecting member 10 (e.g., L-shaped connecting member) may be selected to be combined with a self-tapping screw to connect the first bracket and the second bracket according to the combination between the first bracket and the second bracket. For example, referring to fig. 1 and 2, the first and second brackets may be connected all using the first connector 04; of course, the second connector 10 may be used to connect the first bracket and the second bracket. For another example, referring to fig. 3, the first and second brackets may be connected using both the first and

second connectors

04 and 10.

The first closed structure, the second closed structure, the third closed structure or the fourth closed structure can be adopted according to actual needs; of course, any combination can be used according to actual needs.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. A bracket for application to a finished support and hanger, said bracket comprising: the cross section of the closed structure is rectangular or square and is enclosed by two first side walls which are oppositely arranged and two second side walls which are oppositely arranged, wherein at least one first connecting part which is matched with at least one second connecting part of the connecting piece in the supporting and hanging frame is arranged on the closed structure.

2. The bracket of claim 1, wherein the bracket is made of an aluminum alloy material.

3. The holder according to claim 1, wherein the first connecting portion is a recessed structure in which the first side wall is recessed in a central axis direction of the holder;

4. The bracket of claim 3, wherein the width of the first connection on the first side wall is less than the width of the first side wall.

5. The bracket of claim 3, wherein the width of the first connection on the second sidewall is less than the width of the second sidewall.

6. The bracket of claim 1, wherein a thickness of the first connection on the first sidewall is less than or equal to a thickness of the first connection on the second sidewall.

7. The bracket of any one of claims 1-6, wherein the width of the first sidewall is less than the width of the second sidewall.

8. The bracket of claim 7, wherein said second side wall has one of said first connectors located at a first end of said second side wall adjacent one of said first side walls.

9. The bracket according to claim 7, wherein the second side wall is provided with two first connecting portions, and the two first connecting portions are arranged at two ends of the second side wall at intervals.

10. The bracket of claim 1, wherein the first connecting portion has a trapezoidal shape in cross section.