Wrap angle connecting piece and channel steel support

Abstract

According to the wrap angle connecting piece and the channel steel support, a first clamping groove forms three-direction constraint on a vertical rod through the wrapping type design of a base plate part and double folded edges, instability caused by opening deformation of an opening of the vertical rod of cold-bending opening C-shaped channel steel can be effectively prevented, and lateral expansion deformation of the vertical rod is effectively restrained; therefore, the risk of instability caused by local buckling of the vertical rod is remarkably reduced, the stability of the vertical rod in the using process is enhanced, the reliability and safety of the channel steel support structure are ensured, and the service life of the channel steel support is prolonged. The second clamping groove can support the supporting component and prevent the upper end face of the supporting component from being wrapped, conflict with a pipeline installation area is avoided, it is ensured that various pipeline systems can be arranged in a standardized mode according to standard requirements, the installation efficiency of the channel steel support is improved, and the pipeline installation space occupied by the right-angle connecting piece on a transverse rod of the door-shaped supporting and hanging frame is reduced. And potential safety hazards caused by the fact that the pipe clamp cannot be fixed on the cross rod channel steel can be eliminated.

Description

Technical Field

[0001] This utility model relates to the field of building support technology, and more specifically, to a corner connector and a channel steel support. Background Technology

[0002] To achieve industrialization and prefabrication in the construction industry and improve construction and installation efficiency and project management, common industrial buildings, civil buildings, rail transit, and urban integrated pipe corridors are actively promoting the application and development of prefabricated supports and hangers.

[0003] In modern factories, buildings and other structures, support brackets are used to support and install power cable trays and pipelines. Support brackets are generally installed on the bottom of the building's roof slab or on steel beams via steel bases. The steel bases are connected by vertical C-shaped steel, and then connected to horizontal C-shaped steel, i.e., crossarms, via two-dimensional right-angle connectors. Crossarms are used to support load-bearing cable trays, pipelines, etc.

[0004] like Figures 1-2 As shown, traditional C-channel steel prefabricated support systems generally use a mechanical interlocking connection with channel steel nuts to achieve tensile and anti-slip stress resistance. Specifically, the inner rolled edge of the C-shaped channel steel has teeth, with a tooth depth of not less than 1mm and a tooth spacing of 2 to 3 times the tooth depth. Correspondingly, the tooth module of the channel steel nut matches the teeth of the steel profile, and the teeth on the channel steel nut match the teeth on the C-shaped channel steel. Tightening the bolts causes the C-shaped channel steel and the channel steel nut to interlock, forming a mechanical interlocking force-bearing structure. Although the production process can optimize the tooth structure design and manufacturing process to ensure the material quality and processing accuracy of the channel steel nut and channel steel, during project installation, if the installation workers do not strictly follow the technical specifications, structural failure risks can easily occur. Insufficient installation torque or installation misalignment will weaken the tightness of the tooth interlocking, resulting in a significant decrease in the system's anti-slip capability. This defect may cause the uprights at the base to slip and fall off, which in turn may cause the crossbars connected to the uprights to be unable to bear the weight of the electromechanical pipelines, ultimately leading to the collapse of the entire support structure and causing serious safety accidents and economic losses.

[0005] In the field of construction engineering, traditional C-shaped channel steel prefabricated supports, in order to ensure the load-bearing capacity of the supports, require the installation of connectors on both the upper and lower sides of the crossbeam to connect to the uprights. This type of design requires that the installation point of the channel steel nut on the upright must be at least 30mm away from the end of the upright (e.g., Figure 3As shown in the diagram, H represents the distance between the installation point of the channel steel nut on the upright and the end of the upright. This is to prevent opening deformation caused by cutting the end of the upright, which could affect the normal meshing between the teeth. However, the installation of connectors inevitably occupies a certain amount of building clearance and pipe installation space. In many practical applications, the space available for pipe installation is often limited due to site conditions. The application of the aforementioned connectors not only adversely affects the installation of pipe clamps, but also poses a significant safety hazard when installers force installation for convenience.

[0006] like Figures 4-6 As shown, when the crossarm and upright need to be installed through each other using the above structure, the following situation may occur:

[0007] Most of the time, the back holes of the left and right uprights are not completely aligned. Therefore, if through-hole installation is required, the left and right sides of the crossarm need to be adjusted in height so that the holes of the connectors can align with the back holes of the channel steel. This results in the crossarm tilting (not level), which seriously affects the aesthetics, quality and safety of the support. Utility Model Content

[0008] To overcome the shortcomings of existing technologies, this utility model provides a corner-wrapping connector that effectively prevents the lower end of the upright from being exposed at the bottom of the lowest horizontal bar, thereby optimizing the clearance height of the channel steel support. Simultaneously, the corner-wrapping connector adopts a non-intrusive design, avoiding conflicts with pipe installation areas, ensuring that various pipe systems can be laid out in a standardized manner according to specifications, reducing the space occupied by right-angle connectors on the pipe installation on the portal frame support horizontal bar, and eliminating the safety hazards caused by the inability to fix pipe clamps to the channel steel horizontal bar.

[0009] The technical solution of this utility model is as follows: A corner connector includes a first connecting member and a second connecting member arranged perpendicularly to each other. The first connecting member includes a base plate portion, and the two long sides of the base plate portion are bent and extended toward the side away from the second connecting member to form a first folded edge and a second folded edge, respectively. The base plate portion, the first folded edge and the second folded edge cooperate to form a first slot. The second connecting member includes a support portion, and the two long sides of the support portion are bent and extended upward to form a first side and a second side, respectively. The support portion, the first side and the second side cooperate to form a second slot.

[0010] Furthermore, the substrate portion is provided with a plurality of first connection holes arranged in a linear pattern, each of the first connection holes penetrating the thickness of the substrate portion.

[0011] Furthermore, the plurality of first connecting holes are arranged at equal intervals, and the center distance between two adjacent first connecting holes is 20mm.

[0012] Furthermore, the first connecting hole is a round hole with a diameter of 13mm to 14mm.

[0013] Furthermore, the support portion is provided with at least one second connecting hole and at least one third connecting hole, the second connecting hole being a round hole and the third connecting hole being an oblong hole, and the distance between the second connecting hole and the first connecting member being greater than the distance between the third connecting hole and the first connecting member.

[0014] Furthermore, the diameter of the second connecting hole is 13mm to 14mm.

[0015] In addition, this utility model also provides a channel steel support, including the aforementioned corner connector, two oppositely arranged uprights, and a support member erected between the two uprights, wherein a first connecting member covers the uprights and a second connecting member covers the support member.

[0016] Furthermore, the upright is provided with a plurality of first mounting holes arranged at equal intervals, the first mounting holes being oblong holes.

[0017] Furthermore, the length of the first mounting hole is 28mm, and the distance between two adjacent first mounting holes is 22mm.

[0018] Furthermore, the support member is provided with an oblong hole that penetrates the thickness of the support member.

[0019] The advantages of this utility model based on the above solution are as follows:

[0020] This utility model provides a corner connector. The first slot, through the wrapping design of the base plate and the double-folded edge, forms a three-dimensional constraint on the upright. This effectively prevents the upright of the cold-bent open C-shaped channel steel from opening and deforming, thus preventing instability. It also effectively suppresses the lateral expansion deformation of the upright, thereby significantly reducing the risk of instability caused by local buckling of the upright. This enhances the stability of the upright during use, ensures the reliability and safety of the channel steel support structure, and extends the service life of the channel steel support.

[0021] This utility model provides a corner connector where a first connecting member covers the side wall of the upright and is bolted to the upright. The lower end of the first connecting member is flush with the lower end of the upright, eliminating the need for the lower end of the upright to protrude a certain length, thus saving the building clearance occupied by the tail of the upright channel steel. In scenarios such as underground utility tunnels with limited floor height, this design can directly reduce the overall structural elevation, reserving more installation space for pipeline layout.

[0022] The present invention provides a corner connector, wherein the second slot can support the support component and avoid covering the upper surface of the support component, thereby avoiding conflict with the pipeline installation area, ensuring that various pipeline systems can be laid out in a standardized manner according to specifications, improving the installation efficiency of the channel steel support, reducing the pipeline installation space occupied by the right-angle connector on the crossbar of the portal support, and eliminating the safety hazards caused by the inability of the pipe clamp to be fixed on the channel steel of the crossbar. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram of a channel steel nut;

[0025] Figure 2 This is a structural schematic diagram of a C-shaped channel steel.

[0026] Figure 3 This is a schematic diagram of the installation of a traditional C-channel steel prefabricated bracket;

[0027] Figure 4 A three-dimensional structural diagram of a traditional C-channel steel finished bracket;

[0028] Figure 5 for Figure 4 The left view;

[0029] Figure 6 for Figure 4 The right view;

[0030] Figure 7 This is a three-dimensional structural diagram of the corner connector in an embodiment of the present utility model;

[0031] Figure 8 This is one of the installation diagrams of the channel steel bracket in the embodiments of this utility model;

[0032] Figure 9 for Figure 8 A magnified view of part A;

[0033] Figure 10 This is one of the schematic diagrams of a partial structure of the upright pole;

[0034] Figure 11 This is the second partial structural diagram of the upright pole;

[0035] Figure 12This is one of the structural schematic diagrams of the corner connector in the embodiments of this utility model;

[0036] Figure 13 This is a schematic diagram simulating the assembly of the corner connector and the upright.

[0037] Figure 14 This is one of the simulated assembly diagrams of the corner connector and supporting components;

[0038] Figure 15 This is the second simulated assembly diagram of the corner connector and supporting components;

[0039] Figure 16 This is the third simulated assembly diagram of the corner connector and supporting components;

[0040] Figure 17 The fourth schematic diagram of the simulated assembly of the corner connector and supporting components;

[0041] Figure 18 This is the second schematic diagram of the installation of the channel steel bracket in this utility model embodiment;

[0042] Figure 19 This is the second structural schematic diagram of the corner connector in this utility model embodiment;

[0043] Figure 20 This is a partial structural schematic diagram of the corner connector in an embodiment of the present utility model;

[0044] Figure 21 This is the third schematic diagram of the installation of the channel steel bracket in this utility model embodiment;

[0045] Figure 22 This is the fourth schematic diagram of the installation of the channel steel bracket in this utility model embodiment;

[0046] Figure 23 for Figure 22 A magnified schematic diagram of part B.

[0047] In the figure, 1. First connecting member; 11. Base plate portion; 111. First connecting hole; 12. First folded edge; 13. Second folded edge; 2. Second connecting member; 21. Support portion; 211. Second connecting hole; 212. Third connecting hole; 22. First side; 23. Second side; 3. Upright; 31. First mounting hole; 4. Support member; 5. Weld;

[0048] L1, length of the first mounting hole; L2, distance between two adjacent first mounting holes; d, diameter of the first connecting hole; L3, center distance between two adjacent first connecting holes; L4, overlap dimension of the oblong hole of the upright and the round hole on the base plate; L5, maximum edge distance between two adjacent round holes; L6, overlap dimension of the oblong hole of the support part and the hole of the support member; L7, overlap dimension of the oblong hole of the support member and the round hole of the support part; L8, overlap dimension of the oblong hole of the support member and the oblong hole of the support part; h, erosion depth; W, weld width; H1, weld height. Detailed Implementation

[0049] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present invention by way of example, but should not be used to limit the scope of the present invention, that is, the present invention is not limited to the described embodiments.

[0050] To better understand this utility model, the following description, in conjunction with the accompanying drawings and embodiments, will further illustrate the present utility model:

[0051] See Figure 7 As shown in the figure, an embodiment of the present invention provides a corner connector, including a first connecting member 1 and a second connecting member 2 arranged perpendicularly to each other. In this embodiment, both the first connecting member 1 and the second connecting member 2 are made of steel plates by stamping and forming process, and are fixedly connected by welding process to form an integral part. Specifically, the second connecting member 2 is installed on the lower side wall of the first connecting member 1.

[0052] See Figures 8-9 As shown, the corner connector provided in this embodiment of the utility model is applied to the assembly and connection of the channel steel support. The channel steel support includes the aforementioned corner connector, two uprights 3 arranged opposite to each other, and a support member 4 erected between the two uprights 3. The first connecting member 1 covers the uprights 3, and the second connecting member 2 covers the support member 4.

[0053] See Figure 19 and Figure 20 As shown, the first connecting member 1 and the second connecting member 2 are fixedly connected by welding. It should be noted that in this embodiment, the first connecting member 1 and the second connecting member 2 are only welded on the outer area, and welding is prohibited on the inner area.

[0054] To further illustrate this, this embodiment also provides welding process requirements for the first connecting member 1 and the second connecting member 2. Specifically, during welding, the erosion depth h must be ensured to be no less than 0.4 mm to guarantee the penetration and bonding strength of the weld 5. The width W of the weld 5 has a tolerance requirement of 11 mm ± 1 mm, and the height H1 of the weld 5 should be greater than or equal to 0.5 mm. After the weld 5 is formed, it must completely cover the recessed area at the bend radius of the first connecting member 1 to avoid structural strength defects caused by local lack of fusion. At the same time, the forming height H1 of the weld 5 must be higher than the side planes of the first connecting member 1 and the second connecting member 2 to ensure that the welded parts of the first connecting member 1 and the second connecting member 2 have effective load-bearing capacity under stress.

[0055] In this embodiment, the welding method of the first connecting member 1 and the second connecting member 2 adopts the oscillating welding process (oscillating welding). The weld width 5 is uniformly expanded by oscillating the welding gun laterally, ensuring that the depression in the bend rounded corner area is fully filled and meets the width requirement of 11mm±1mm.

[0056] The welding torch is used to continuously weld along the outer side of the connection between the first connecting member 1 and the second member, resulting in a smooth transition of the weld surface 5 and avoiding defects such as undercut, porosity, and lack of fusion. It should be noted that the state of the molten pool needs to be monitored in real time during the welding process, and the welding speed and current parameters need to be adjusted to ensure that the erosion depth h meets the standard.

[0057] See Figure 7 As shown, the first connecting member 1 includes a base plate portion 11. The two long sides of the base plate portion 11 are bent and extended toward the side opposite to the second connecting member 2 to form a first folded edge 12 and a second folded edge 13. The base plate portion 11, the first folded edge 12, and the second folded edge 13 cooperate to form a first slot. Specifically, the first slot, through the wrapping design of the base plate portion 11 and the double folded edges, forms a three-dimensional constraint on the upright 3, which can effectively prevent the opening of the upright 3 of the cold-bent open C-shaped channel steel from opening and deforming, and effectively suppress the lateral expansion deformation of the upright 3 (the "trumpet mouth" effect of the C-shaped steel), thereby significantly reducing the risk of instability caused by local buckling of the upright 3, enhancing the stability of the upright 3 during use, ensuring the reliability and safety of the channel steel support structure, and extending the service life of the channel steel support.

[0058] In this embodiment, the first connecting member 1 covers the side wall of the upright 3, and the first connecting member 1 and the upright 3 are connected by bolts. The lower end of the first connecting member 1 can be flush with the lower end of the upright 3, so that the lower end of the upright 3 does not need to be exposed for a certain length, which can save the space occupied by the tail of the upright channel steel. In scenarios such as underground pipe corridors with limited floor height, this design can directly reduce the overall structural elevation and reserve more installation space for pipeline layout.

[0059] In this embodiment, the second connecting member 2 includes a support portion 21. The two long sides of the support portion 21 are bent upwards to form a first side 22 and a second side 23, respectively. The support portion 21, the first side 22, and the second side 23 cooperate to form a second slot. Specifically, the second slot can support the supporting member 4 without covering its upper surface, avoiding conflict with the pipe installation area. This ensures that various pipe systems can be laid out in a standardized manner according to specifications, improving the efficiency of the channel steel bracket installation, reducing the space occupied by right-angle connectors on the portal frame support crossbar for pipe installation, and eliminating the safety hazards caused by the inability to fix pipe clamps on the channel steel crossbar.

[0060] See Figures 10-11 As shown, Figure 10 and Figure 11 These are partial structural diagrams of the upright pole 3. The upright pole 3 has multiple equally spaced first mounting holes 31, which are oblong in shape. Specifically, the length L1 of the first mounting hole 31 is 28mm, and the distance L2 between two adjacent first mounting holes 31 is 22mm.

[0061] See Figure 12 As shown, to ensure that the corner connector can pass through the upright 3, considering that the distance L2 between the first mounting hole 31 of the upright 3 and two adjacent first mounting holes 31 is 22mm, a first connecting hole 111 is provided on the base plate 11 every 20mm, for a total of at least three first connecting holes 111. The three first connecting holes 111 are arranged linearly, and each first connecting hole 111 penetrates the thickness of the base plate 11. Specifically, the first connecting hole 111 is a circular hole with a diameter d of 13mm to 14mm, and the center distance L3 between any two adjacent first connecting holes 111 is 20mm. With this design, at least one first connecting hole 111 on the base plate 11 can be axially aligned with the first mounting hole 31 on the upright 3, thereby meeting the requirement of bolt interference-free connection.

[0062] To further explain and illustrate, the following description is also provided in this embodiment:

[0063] See Figure 13 As shown, in Figure 13 In the diagram, the dashed waist-shaped hole represents the waist-shaped hole on the upright 3, and the solid circular hole represents the circular hole on the base plate 11. Simulations showed that the most unfavorable installation conditions occurred during installation, such as... Figure 13As shown, the oblong hole of the upright 3 is located in the middle of two adjacent circular holes on the base plate 11. According to the calculation, the maximum edge distance L5 between the two adjacent circular holes is (14 / 2)×2+20=34mm. At this time, the overlap size L4 between the oblong hole of the upright 3 and the circular hole on the base plate 11 is 11mm. Therefore, when the upright 3 has an allowable adjustment space of 2mm, no matter whether the upright 3 is adjusted upward or downward, the overlap size on the other side will increase. This ensures that at least one circular hole on the base plate 11 can be axially aligned with the oblong hole on the upright 3, thereby ensuring that the long bolt can pass through the upright 3 and the base plate 11 to achieve through-through, thereby reducing the occurrence of accidents such as crossbar slippage and collapse due to insufficient torque, and thus ensuring the safety of the channel steel support.

[0064] See Figure 7 As shown, the support portion 21 is provided with at least one second connecting hole 211 and at least one third connecting hole 212. The second connecting hole 211 is a round hole with a diameter of 13mm to 14mm. The third connecting hole 212 is an oblong hole, and the distance between the second connecting hole 211 and the first connecting member 1 is greater than the distance between the third connecting hole 212 and the first connecting member 1. This design enables adaptable connection with support members 4 of different structural forms.

[0065] When the support member 4 is made of a single-section channel steel, the support part 21 will be assembled with the pre-drilled holes on the back of the single-section channel steel. Specifically, the pre-drilled holes on the back of the support member 4 are oblong holes.

[0066] In this structure, the second connecting hole 211 is a round hole, which serves as a reference positioning hole. Its diameter matches that of the standard bolt, ensuring a clear axial positioning reference during installation. The third connecting hole 212 is an oblong hole that extends along the length of the support part 21, providing adjustment margin for the back hole of the single-section channel steel. While ensuring that the bolt penetrates 100% through the single-section channel steel and the support part 21, it also ensures that the support member 4 has a complete oblong hole to connect with the corner connector, effectively compensating for the cutting error and cumulative assembly tolerance of the support member 4.

[0067] The connection principle between support member 4 and corner connector is as follows:

[0068] like Figure 14 As shown, Figure 14 The dashed waist-shaped hole in the diagram represents the waist-shaped hole on the support member 4, while the solid waist-shaped hole and solid round hole represent the round hole and waist-shaped hole on the support part 21. This experiment will simulate the support member 4 moving to the right and will cut to a designated position for illustration.

[0069] When the support member 4 is exactly cut to the edge of an oblong hole, forming a perforation, and is installed onto the support part 21, as follows: Figure 15As shown. At this time, the oblong hole of the support member 4 has successfully entered directly above the round hole of the support part 21. Although the oblong hole of the support part 21 corresponds to the hole on the support member 4, and the overlap dimension L6 between the oblong hole of the support part 21 and the hole of the support member 4 is 12mm, the round hole on the support part 21 corresponds to the completed oblong hole on the support member 4. This allows the support member 4 to effectively adapt to hole position deviations caused by manufacturing tolerances, assembly errors, or material deformation during installation, providing a certain tolerance space and ensuring the stability and reliability of the connection.

[0070] The round hole on the support part 21 corresponds to the complete waist-shaped hole on the support member 4, so that when the support member 4 is engaged with the support part 21, it can be appropriately displaced within the extension range of the waist-shaped hole.

[0071] When faced with the extension of the hole, the complete waist-shaped hole on the support part 21 can accommodate the extension of the hole for a certain distance, ensuring that the normal function of the connector is not affected. The complete waist-shaped hole on the support part 21 cooperates with the hole of the support member 4 to provide a certain degree of tolerance, thereby enabling the support member 4 and the corner connector to be installed quickly, and also improving the installation firmness between the two.

[0072] When support member 4 just touches... Figure 16 At the position shown, as the hole in the support member 4 extends, the oblong hole in the support member 4 begins to move away from directly above the round hole in the support portion 21, that is, the two gradually shift and begin to move directly above the oblong hole in the support portion 21, until it reaches the position shown. Figure 16 As shown in the extreme position, regardless of whether the bolt passes through the round hole or the oblong hole of the support part 21, both ends of the oblong hole of the support member 4 have a 12mm overlap with the round hole and the oblong hole of the support part 21. That is, the overlap L7 between the oblong hole of the support member 4 and the round hole of the support part 21 is 12mm, and the overlap L8 between the oblong hole of the support member 4 and the oblong hole of the support part 21 is 12mm, thus allowing an M12 bolt to pass through. Although the bolt can only pass through one of the round hole or the oblong hole on the support part 21 due to the limitation of installation space, the connection stability between the support member 4 and the support part 21 can still be guaranteed because the oblong hole through which the bolt passes is a complete oblong hole rather than a broken hole.

[0073] When the rightmost oblong hole of the support member 4 enters the oblong hole of the support part 21 and moves to the right, until... Figure 17 As shown, it is just the beginning of the next hole, and then the next cycle begins, as in the simulation case (1) above.

[0074] See Figure 18As shown, when the length of the support member 4 is too long, or when it is necessary to add an intermediate upright 3 to reduce the deflection deformation of the support member 4 under stress, the corner connector provided in this embodiment can also be used. Specifically, the width of the corner connector covering the upright 3 is 18mm~20mm. For uprights 3 with a diameter of 41 or 21D (i.e., 42mm), even if the corner connector is installed on both sides of the upright 3, the two sides of the corner connector will not experience mutual squeezing and collision due to insufficient space or other factors during the bolt tightening process.

[0075] Corner connectors are used to connect and fix the middle vertical bar. They can achieve a stable and reliable connection effect, effectively reduce the types of connectors, significantly reduce the risk of installation errors caused by incorrect connector selection, and improve installation efficiency.

[0076] See Figure 21 As shown, in one embodiment, the base plate 11 is provided with a plurality of round holes and at least one oblong hole, and the oblong hole is located below the round holes. This design ensures that it can pass through the upright 3, and can also fix the corner connector and the upright 3 by a combination of bolts and channel steel nuts, thereby enhancing the anti-slip capability of the channel steel bracket. The oblong hole located below cooperates with the bolts to increase the connection strength between the corner connector and the upright 3, so as to enhance the resistance to the lever arm formed due to the high center of gravity of the water pipe.

[0077] See Figure 22 and Figure 23 As shown, the corner connector provided in this embodiment is also suitable for channel steel supports that require the through-type installation of the support member 4. Its installation is simple, requiring only the addition of a washer and the use of long bolts. However, the through-type installation of the support member 4 will occupy the installation space of the pipeline; those skilled in the art can adjust this according to the actual situation of the project.

[0078] It should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art, or the orientation or positional relationship that the product is usually placed in during use. It is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0079] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0080] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. A corner connector, characterized in that, include: A first connecting member (1) and a second connecting member (2) are arranged perpendicularly to each other. The first connecting member (1) includes a base plate portion (11). The two long sides of the base plate portion (11) are bent and extended to the side away from the second connecting member (2) to form a first folded edge (12) and a second folded edge (13). The base plate portion (11), the first folded edge (12) and the second folded edge (13) cooperate to form a first slot. The second connecting member (2) includes a support portion (21). The two long sides of the support portion (21) are bent and extended upward to form a first side edge (22) and a second side edge (23). The support portion (21), the first side edge (22) and the second side edge (23) cooperate to form a second slot.

2. The corner connector as described in claim 1, characterized in that: The substrate portion (11) is provided with a plurality of first connection holes (111) arranged in a linear manner, and each first connection hole (111) penetrates the thickness of the substrate portion (11).

3. The corner connector as described in claim 2, characterized in that: Multiple first connecting holes (111) are arranged at equal intervals, and the center distance between two adjacent first connecting holes (111) is 20mm.

4. The corner connector as described in claim 3, characterized in that: The first connecting hole (111) is a round hole with a diameter of 13mm to 14mm.

5. A corner connector as described in claim 1, characterized in that: The support portion (21) is provided with at least one second connecting hole (211) and at least one third connecting hole (212). The second connecting hole (211) is a round hole, and the third connecting hole (212) is an oblong hole. The distance between the second connecting hole (211) and the first connecting member (1) is greater than the distance between the third connecting hole (212) and the first connecting member (1).

6. A corner connector as described in claim 5, characterized in that: The diameter of the second connecting hole (211) is 13mm to 14mm.

7. A channel steel support, characterized in that, It includes the corner connector as described in any one of claims 1 to 6, two uprights (3) arranged opposite to each other, and a support member (4) erected between the two uprights (3), wherein the first connecting member (1) covers the uprights (3) and the second connecting member (2) covers the support member (4).

8. A channel steel support as described in claim 7, characterized in that: The upright (3) is provided with a plurality of first mounting holes (31) arranged at equal intervals, and the first mounting holes (31) are waist-shaped holes.

9. A channel steel support as described in claim 8, characterized in that: The length of the first mounting hole (31) is 28mm, and the distance between two adjacent first mounting holes (31) is 22mm.

10. A channel steel support as described in claim 8, characterized in that: The support member (4) is provided with a waist-shaped hole that penetrates the thickness of the support member (4).

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