Heavy-duty support structure

Abstract

The utility model relates to a support and hanger technical field discloses a heavy support and hanger structure, including support main part, support main part includes two interval settings vertical roof, and the crossbeam is connected between two vertical roof, and the lateral wall of vertical roof and crossbeam all includes four side faces and is provided with the support arm mounting groove on every side face, at least one group pipeline support support arm is arranged on the support main part, the utility model discloses stable and function is various, through the vertical roof and crossbeam four side faces all set up support arm mounting groove, has broken through the limitation that only 1~2 side faces of present support and hanger can install support arm, can adapt multidirectional pipeline cross -over layout scene and greatly promote installation adaptability, simultaneously, the stable frame is formed to the support main part structure of'two vertical roof + crossbeam', and the support main part structure is matched with at least one group pipeline support support arm, can satisfy heavy pipeline foundation support demand, and reserve multiple support arm extension space, can increase support point according to pipeline quantity flexibly, avoid single group support arm stress overload, further guarantee support stability.

Description

Technical Field

[0001] This utility model relates to the field of support and hanger technology, specifically a heavy-duty support and hanger structure. Background Technology

[0002] In fields such as construction engineering, petrochemicals, power systems, and industrial plants, heavy-duty pipe supports are core supporting components that ensure the stable operation of heavy pipelines such as large-diameter pipes, high-voltage cable trays, and large ventilation ducts. These pipelines typically have large single-section weights and complex layouts, placing extremely high demands on the load-bearing strength, structural stability, installation flexibility, and ease of maintenance of the supports. However, the main body of existing heavy-duty pipe supports is mostly made of open-section steel (such as C-shaped steel and U-shaped steel), with a non-closed cross-section, resulting in weak torsional stiffness and bending resistance.

[0003] When supporting heavy pipelines for extended periods, stress concentration can easily lead to beam deformation and loosening of joints, potentially causing pipeline displacement and safety hazards. Furthermore, most existing bracket designs only have mounting slots on one or two sides of the vertical or horizontal beams, limiting bracket installation to a fixed direction (e.g., horizontal or vertical). This makes them unsuitable for scenarios with multiple pipelines crossing (e.g., the same bracket needs to support both horizontal water pipes and vertical cable trays). The mounting slots are often of equal width, resulting in poor stability with connectors (e.g., nuts), making them prone to slippage due to vibration, and hindering quick mounting and positioning of the brackets.

[0004] The existing connections between vertical beams and top fixed foundations (such as floor slabs and steel structure beams) of support brackets, as well as between horizontal beams and vertical beams, generally adopt "simple flat plate welding" or "direct bolt drilling and fixing" methods. These methods lack dedicated connection and positioning structures, resulting in poor fixing reliability and inconvenient installation and adjustment. Furthermore, the dimensions of some connecting fixing plates do not match the cross-sectional dimensions of the vertical / horizontal beams (e.g., the cross-sectional dimensions of the vertical beam are close to the dimensions of the fixing plate), leading to a small bolt bearing area. Under long-term load-bearing conditions, this can easily cause deformation of the fixing plate and stripping of the bolt threads.

[0005] Existing heavy-duty pipe support brackets are mostly "single-specification integrated designs," without differentiated optimization for different weights and types of pipes, and have structural defects. A single bracket cannot simultaneously meet the support needs of both light and heavy-duty pipes—if designed for heavy-duty pipes, the bracket's weight is too large, costly, and difficult to adapt to small-diameter pipes; if designed for light-duty pipes, its load-bearing capacity is insufficient for heavy-duty applications. The connection between the bracket and the main support body relies solely on bolt holes with fixed diameters, making it impossible to fine-tune the horizontal extension length and vertical height, and difficult to adapt to changes in pipe spacing. Utility Model Content

[0006] The purpose of this invention is to provide a heavy-duty support structure that is structurally stable and has multiple functions to address the above problems.

[0007] To achieve the above objectives, this utility model discloses a heavy-duty support structure, including a support body. The structure is characterized in that the support body includes two spaced vertical beams, and a horizontal beam connects the two vertical beams. The side walls of the vertical beams and the horizontal beams each include four sides, and each side is provided with a support arm mounting groove. At least one set of pipeline support arms is provided on the support body.

[0008] With the above structure, bracket mounting slots are opened on all four sides of the vertical beams and horizontal beams, which breaks through the limitation of existing supports that can only install brackets on 1 to 2 sides. This makes it suitable for multi-directional pipeline intersection scenarios and greatly improves installation adaptability. At the same time, the main structure of the "two vertical beams + horizontal beams" support forms a stable frame, and with at least one set of pipeline support brackets, it can meet the foundation support requirements of heavy pipelines. It also reserves space for multiple sets of bracket expansion, which can flexibly increase support points according to the number of pipelines, avoid overload of a single set of brackets, and further ensure the stability of the support.

[0009] Preferably, the vertical and horizontal beams of the support body are all closed-section steel with four sides closed, and each of its four side walls has a through-hole for mounting the support arm along its length. The width of the groove opening is smaller than the width of the groove bottom. Compared with existing open-section steel, the four-sided closed-section steel significantly improves torsional stiffness and bending resistance, effectively dispersing the stress generated by the long-term bearing of heavy pipelines, avoiding beam deformation and loosening of interfaces, and solving the problem of insufficient load-bearing capacity of existing supports and hangers. The "narrow groove opening and wide groove bottom" structure of the support arm mounting groove can form a "locking fit" with the connecting parts (such as T-bolts), preventing the connecting parts from slipping due to vibration, and at the same time realizing quick locking and positioning of the support arm, making up for the poor stability of the existing equal-width groove fit.

[0010] Preferably, a first connecting fixing plate is provided at the upper end of the vertical beam, and second connecting fixing plates are provided at both ends of the horizontal beam. The vertical beam is vertically fixed to the side wall of the first connecting fixing plate. The length and width of the vertical beam cross-section are smaller than the length and width of the first connecting fixing plate. The first connecting fixing plate is provided with multiple fixing holes. The horizontal beam is vertically connected to the side wall of the second connecting fixing plate. The length of the horizontal beam cross-section is equal to the distance between the left and right sides of the second connecting fixing plate, and the width of the horizontal beam cross-section is smaller than the distance between the upper and lower sides of the second connecting fixing plate. By making the size of the first connecting fixing plate larger than the cross-section of the vertical beam, the contact area between the vertical beam and the top fixed foundation is increased, making the bolt force more uniform and avoiding the deformation and bolt stripping problems caused by poor size matching of existing fixing plates, further improving the fixing reliability of the vertical beam. At the same time, the length of the horizontal beam cross-section is equal to the width of the left and right sides of the second connecting fixing plate, ensuring accurate positioning in the left and right direction when the horizontal beam is connected to the vertical beam. The width of the horizontal beam is smaller than the distance between the upper and lower sides of the fixing plate, reserving space for adjusting the vertical position of the horizontal beam, taking into account both connection stability and installation flexibility.

[0011] Preferably, the second connecting fixing plate located on the upper and lower sides of the crossbeam is provided with a horizontal elongated oval hole and a vertical elongated oval hole, respectively. T-bolts for mounting the crossbeam onto the vertical beam are provided at the horizontal and vertical elongated oval holes. By using the horizontal and vertical elongated oval holes in conjunction with the T-bolts, installation is more convenient and the holes can be effectively matched to prevent the second connecting fixing plate from shifting left and right or up and down.

[0012] Preferably, the T-bolt nut is fitted into the bracket mounting groove of the vertical beam, and the bolt passes through the transverse or vertical elongated hole of the crossbeam. The tight engagement between the T-bolt nut and the bracket mounting groove resists the impact of pipeline vibration, prevents slippage of the connector, and solves the problem of poor fit stability in existing connectors. Simultaneously, the bolt passing through the elongated hole of the crossbeam makes installation more convenient while simultaneously fixing the crossbeam.

[0013] Preferably, both the vertical and horizontal beams have multiple positioning holes spaced apart along the length of the mounting slots for the support arms. These positioning holes penetrate the bottom of the mounting slots for the two opposite support arms on the beam. These positioning holes, in conjunction with connectors (such as bolts), allow for precise positioning of the support arms, avoiding the problem of the support arms being fixed solely by bolt friction and prone to displacement over time. Furthermore, the structure penetrating the bottom of the opposite slots allows bolts to pass through the slots, forming a "two-way fixation," enhancing the connection strength between the support arms and the beam. Additionally, the spaced positioning holes along the slots allow for quick determination of the support arm installation points, reducing on-site measurement time and improving installation accuracy and efficiency.

[0014] Preferably, the pipeline support bracket includes a first bracket and a second bracket. The first bracket is a closed-section steel with four sides. The first bracket has four sides and each side is provided with a fastening groove along the length of the first bracket. The second bracket is a closed-section steel with four sides. One of the opposite side walls of the second bracket is provided with a fastening groove along the length of the second bracket. The distance between the left and right sides of the cross-section of the second bracket is smaller than the distance between the left and right sides of the cross-section of the first bracket. By using closed-section steel for both the first and second support arms, the bending and torsional resistance is improved compared to existing support arms, meeting the load-bearing requirements of pipelines of different weights. The first support arm has fastening grooves on all four sides, which can be used for multi-directional pipeline installation (such as adding auxiliary supports on the side), making it suitable for heavy-duty pipelines. Meanwhile, the second support arm only has grooves on the two sides and has a smaller cross-section, which can achieve weight reduction while ensuring the support strength of light-duty pipelines. This avoids the contradiction of existing single-specification support arms being "high cost for heavy-duty use and excessive strength for light-duty use". The combination of the two covers light and heavy-duty pipeline scenarios, improves versatility, and reduces inventory and usage costs.

[0015] Preferably, the fastening grooves on the first and second support arms are provided with multiple positioning through holes arranged along the length of the fastening grooves. The positioning through holes allow for flexible adjustment of the position of the connector along the length of the fastening groove, enabling precise adjustment of the extension length of the support arm. At the same time, the positioning through holes enhance the engagement between the connector and the support arm, preventing the connector from sliding along the groove and further improving the stability of the support arm.

[0016] Preferably, the end of the first support arm is vertically connected to a first positioning connecting plate, and the end of the second support arm is vertically connected to a second positioning connecting plate. The end of the first support arm is vertically connected to the side wall of the first positioning connecting plate, and the end of the second support arm is vertically connected to the side wall of the second positioning connecting plate near its lower edge. By vertically connecting the first support arm to the side wall of the first connecting plate, the force on the support arm can be evenly transmitted to the first connecting plate, avoiding deformation of the connecting plate caused by local stress concentration. The second support arm is connected to the second connecting plate near its lower edge, which allows the support point of the support arm to be closer to the center of gravity of the pipeline, reducing the torque at the cantilever end of the support arm and lowering the risk of the support arm bending.

[0017] Preferably, the first positioning connecting plates located on the upper and lower sides of the first support arm are respectively provided with transverse elongated holes and vertical elongated holes, and the second positioning connecting plate located on the upper side of the second support arm is provided with transverse elongated holes and vertical elongated holes spaced apart along the vertical direction. The first support arm can be easily positioned by T-bolts through the upper and lower elongated holes, and the transverse and vertical displacement of the first support arm can be prevented; similarly, the two sets of elongated holes on the upper side of the second support arm can also prevent the transverse and vertical displacement of the second support arm.

[0018] In summary, the beneficial effects of this utility model are as follows: This utility model has a stable structure and diverse functions. By opening bracket mounting slots on all four sides of the vertical beams and horizontal beams, it breaks through the limitation of existing supports and hangers that can only install brackets on 1-2 sides. It can adapt to multi-directional pipeline intersection scenarios and greatly improve installation adaptability. At the same time, the main structure of the "two vertical beams + horizontal beams" support forms a stable frame, and with at least one set of pipeline support brackets, it can meet the basic support requirements of heavy pipelines. Moreover, it reserves space for multiple sets of bracket expansion, which can flexibly increase support points according to the number of pipelines, avoid overload of a single set of brackets, and further ensure the stability of the support. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the vertical beam section of this utility model.

[0020] In the diagram: 1. Support body; 2. Vertical beam; 3. Horizontal beam; 4. Support arm mounting groove; 5. Pipeline support arm; 6. First connecting fixing plate; 7. Second connecting fixing plate; 8. Fixing mounting hole; 9. Horizontal elongated hole; 10. Vertical elongated hole; 11. T-bolt; 12. Positioning hole; 13. First support arm; 14. Second support arm; 15. Fastening groove; 16. Positioning through hole; 17. First positioning connecting plate; 18. Second positioning connecting plate. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0022] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not 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, they should not be construed as limitations on this application.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0025] like Figure 1 and Figure 2 As shown, this utility model includes a support body 1, which includes two spaced vertical beams 2 and a horizontal beam 3 connecting the two vertical beams 2. The side walls of the vertical beams 2 and the horizontal beams 3 each include four sides, and each side is provided with a support arm mounting groove 4. In the design, the vertical beams 2 and the horizontal beams 3 of the support body 1 are all closed-section steel with four closed sides. Each of the four side walls is provided with a through support arm mounting groove 4 along the length direction. The groove opening width of the support arm mounting groove 4 is smaller than the groove bottom width. In the manufacturing process, the material of the closed-section steel must be high-strength steel to match the load-bearing requirements of heavy pipelines such as water pipes of DN300 and above, and cable trays weighing more than 50kg / m. It is also necessary to ensure the smoothness of the groove wall of the support arm mounting groove 4 to avoid burrs at the groove opening affecting the assembly of the connecting parts. This closed-type steel structure, with its four sides enclosed, significantly improves torsional stiffness and bending resistance compared to existing open-type steel such as C-shaped and U-shaped steel. It can effectively disperse the stress generated by the long-term bearing of heavy pipelines, prevent beam deformation and loosening of interfaces, and solve the problem of insufficient load-bearing capacity of existing supports and hangers. The bracket installation groove 4 structure with "narrow opening and wide bottom" can form a "clamping fit" with connecting parts such as T-bolts 11 or other clamping bolts, preventing the connecting parts from slipping due to pipeline vibration. At the same time, it can realize quick clamping and positioning of the bracket, making up for the poor stability of existing equal-width groove types.

[0026] The vertical beam 2 is provided with a first connecting fixing plate 6 at its upper end, and a second connecting fixing plate 7 is provided at both ends of the horizontal beam 3. The vertical beam 2 is vertically fixed to the side wall of the first connecting fixing plate 6. The length and width of the cross-section of the vertical beam 2 are smaller than the length and width of the first connecting fixing plate 6. The first connecting fixing plate 6 is provided with multiple fixing holes 8. In this way, the size of the first connecting fixing plate 6 is larger than the cross-section of the vertical beam 2, which increases the contact area between the vertical beam 2 and the top fixed foundation, making the bolt force more uniform and avoiding the deformation and bolt stripping problems caused by poor size matching of existing fixing plates, further improving the fixing reliability of the vertical beam 2. In the design, the horizontal beam 3 is vertically connected to the side wall of the second connecting fixing plate 7. The length of the cross-section of the horizontal beam 3 is equal to the distance between the left and right sides of the second connecting fixing plate 7, while the width of the cross-section of the horizontal beam 3 is smaller than the distance between the top and bottom sides of the second connecting fixing plate 7. Meanwhile, the distance between the left and right sides of the cross section of the crossbeam 3 is equal to the width of the left and right sides of the second connecting fixing plate 7, ensuring accurate positioning in the left and right directions when the crossbeam 3 is connected to the vertical beam 2. The width of the crossbeam 3 is less than the distance between the upper and lower sides of the fixing plate, reserving space for adjusting the upper and lower positions of the crossbeam 3, taking into account both connection stability and installation flexibility.

[0027] The second connecting fixing plate 7, located on the upper and lower sides of the crossbeam 3, is respectively provided with a horizontal elongated oval hole 9 and a vertical elongated oval hole 10. T-bolts 11 for mounting the crossbeam 3 onto the vertical beam 2 are installed at the horizontal elongated oval holes 9 and 10. This combination of the horizontal elongated oval holes 9 and 10, along with the T-bolts 11, makes installation more convenient and effectively prevents the second connecting fixing plate 7 from shifting left, right, or up and down. During the design, the nut of the T-bolt 11 is fitted into the bracket mounting groove 4 of the vertical beam 2, and the bolt passes through the horizontal elongated oval hole 9 or the vertical elongated oval hole 10 of the crossbeam 3. This tight engagement between the T-bolt 11 nut and the bracket mounting groove 4 resists the impact force from pipeline vibration, prevents slippage of the connector, and solves the defect of poor stability in existing connectors. Simultaneously, the bolt passing through the elongated oval hole of the crossbeam 3 makes installation more convenient while simultaneously fixing the crossbeam 3.

[0028] Multiple positioning holes 12 are provided in the bracket mounting grooves 4 on both the vertical beam 2 and the horizontal beam 3, spaced apart along the length of the groove. These positioning holes 12 penetrate the bottom of the grooves on the beam body opposite to the bracket mounting grooves 4. This allows for precise positioning of the bracket installation position through the positioning holes 12 in conjunction with connecting parts such as bolts, avoiding the problem of the bracket being easily displaced over long-term use due to bolt friction alone. Simultaneously, the structure penetrating the bottom of the grooves allows bolts to pass through the groove body, forming a "two-way fixation," enhancing the connection strength between the bracket and the beam body. Furthermore, the positioning holes 12 spaced apart along the groove body allow for quick determination of the bracket installation point, reducing on-site measurement time and improving installation accuracy and efficiency.

[0029] At least one set of pipeline support arms 5 is provided on the support body 1. The pipeline support arms 5 include a first support arm 13 and a second support arm 14. Similarly, the first support arm 13 is a closed steel profile with four closed sides. The first support arm 13 includes four sides and each side is provided with a fastening groove 15 arranged along the length direction of the first support arm 13. The second support arm 14 is a closed steel profile with four closed sides and includes four sides. One of the opposite side walls of the second support arm 14 is provided with a fastening groove 15 arranged along the length direction of the second support arm 14. The distance between the left and right sides of the cross-section of the second support arm 14 is smaller than the distance between the left and right sides of the cross-section of the first support arm 13. By using closed-section steel for both the first support arm 13 and the second support arm 14, the bending and torsional resistance is improved compared to existing support arms, meeting the load-bearing requirements of pipelines of different weights. The first support arm 13 has fastening grooves 15 on all four sides, which can accommodate pipeline installation in multiple directions and is suitable for heavy pipelines. Meanwhile, the second support arm 14 has grooves only on the two sides and has a smaller cross-section, which can achieve weight reduction while ensuring the support strength of light pipelines. This avoids the contradiction of existing single-specification support arms being "high cost for heavy use and excessive strength for light use". The combination of the two covers light and heavy pipeline scenarios, improves versatility, and reduces inventory and usage costs.

[0030] Multiple positioning through holes 16 are provided in the fastening grooves 15 located on the first support arm 13 and the second support arm 14, arranged along the length direction of the fastening grooves 15. The position of the connector can be flexibly adjusted along the length direction of the fastening grooves 15 through the positioning through holes 16, so as to achieve precise adjustment of the extension length of the support arm. At the same time, the positioning through holes 16 can enhance the engagement between the connector and the support arm, prevent the connector from sliding along the groove, and further improve the stability of the support arm. In the design, the end of the first support arm 13 is vertically connected to the first positioning connecting plate 17, and the end of the second support arm 14 is vertically connected to the second positioning connecting plate 18. The end of the first support arm 13 is vertically connected to the side wall of the first positioning connecting plate 17, and the end of the second support arm 14 is vertically connected to the side wall of the second positioning connecting plate 18 near the lower side. This design, with the first support arm 13 vertically connected to the side wall of the first connecting plate, ensures that the force on the support arm is evenly distributed to the first connecting plate, preventing deformation of the connecting plate due to localized stress concentration. The second support arm 14, connected to the lower side of the second connecting plate, allows the support point to be closer to the pipeline's center of gravity, reducing the torque at the cantilever end of the support arm and lowering the risk of bending. During manufacturing, the first positioning connecting plates 17 on the upper and lower sides of the first support arm 13 are respectively provided with horizontal elongated holes 9 and vertical elongated holes 10. The second positioning connecting plate 18 on the upper side of the second support arm 14 is also provided with horizontal elongated holes 9 and vertical elongated holes 10 spaced vertically. The first support arm 13, through the upper and lower elongated holes, can be easily positioned using T-bolts 11 and prevents lateral and vertical displacement. Similarly, the two sets of elongated holes on the upper side of the second support arm 14 also prevent lateral and vertical displacement. Of course, the structure and positioning clamping method of the T-bolt 11 mentioned above are well-known structures and will not be elaborated here: By combining the first support arm 13 and the second support arm 14, the contradiction of existing single-specification support arms being "high cost for heavy use and excessive strength for light use" can be avoided. The combination of the two covers light and heavy pipeline scenarios, improves versatility, and reduces inventory and usage costs.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A heavy-duty support structure, comprising a support body (1), characterized in that: The main body of the support (1) includes two vertical beams (2) spaced apart, and a horizontal beam (3) is connected between the two vertical beams (2). The side walls of the vertical beams (2) and the horizontal beams (3) each include four sides and each side is provided with a support arm mounting groove (4). At least one set of pipeline support arms (5) is provided on the main body of the support (1).

2. The heavy-duty support structure as described in claim 1, characterized in that: The vertical beam (2) and horizontal beam (3) of the main body (1) of the bracket are both closed steel sections with four sides closed. Each of the four side walls has a through bracket mounting groove (4) along the length direction. The width of the groove opening of the bracket mounting groove (4) is smaller than the width of the groove bottom.

3. The heavy-duty support structure as described in claim 1, characterized in that: The upper end of the vertical beam (2) is provided with a first connecting fixing plate (6), and the two ends of the horizontal beam (3) are provided with second connecting fixing plates (7). The vertical beam (2) is vertically fixed on the side wall of the first connecting fixing plate (6). The length and width of the cross section of the vertical beam (2) are smaller than the length and width of the first connecting fixing plate (6). The first connecting fixing plate (6) is provided with a plurality of fixing holes (8). The horizontal beam (3) is vertically connected to the side wall of the second connecting fixing plate (7). The length of the cross section of the horizontal beam (3) is equal to the distance between the left and right sides of the second connecting fixing plate (7). The width of the cross section of the horizontal beam (3) is smaller than the distance between the upper and lower sides of the second connecting fixing plate (7).

4. The heavy-duty support structure as described in claim 3, characterized in that: The second connecting fixing plate (7) located on the upper and lower sides of the crossbeam (3) is provided with a horizontal elongated oval hole (9) and a vertical elongated oval hole (10), respectively. T-bolts (11) for mounting the crossbeam (3) on the vertical beam (2) are provided at the horizontal elongated oval hole (9) and the vertical elongated oval hole (10).

5. The heavy-duty support structure as described in claim 4, characterized in that: The nut of the T-bolt (11) is fitted into the bracket mounting groove (4) of the vertical beam (2) and the bolt passes through the transverse elongated hole (9) or the vertical elongated hole (10) of the cross beam (3).

6. The heavy-duty support structure as described in claim 1, characterized in that: The vertical beam (2) and the horizontal beam (3) are provided with multiple positioning holes (12) spaced apart along the length of the groove. The positioning holes (12) penetrate the bottom of the grooves opposite to the two support arm mounting grooves (4) on the beam.

7. The heavy-duty support structure as described in claim 1, characterized in that: The pipeline support bracket (5) includes a first bracket (13) and a second bracket (14). The first bracket (13) is a closed steel profile with four sides closed. The first bracket (13) includes four sides and each side is provided with a fastening groove (15) arranged along the length direction of the first bracket (13). The second bracket (14) is a closed steel profile with four sides closed. One of the opposite side walls of the second bracket (14) is provided with a fastening groove (15) arranged along the length direction of the second bracket (14). The distance between the left and right sides of the cross-section of the second bracket (14) is smaller than the distance between the left and right sides of the cross-section of the first bracket (13).

8. The heavy-duty support structure as described in claim 7, characterized in that: The first support arm (13) and the second support arm (14) have multiple positioning through holes (16) arranged along the length direction of the fastening groove (15) in the fastening groove (15).

9. The heavy-duty support structure as described in claim 7, characterized in that: The end of the first support arm (13) is vertically connected to the first positioning connecting plate (17), and the end of the second support arm (14) is vertically connected to the second positioning connecting plate (18). The end of the first support arm (13) is vertically connected to the side wall of the first positioning connecting plate (17), and the end of the second support arm (14) is vertically connected to the side wall of the second positioning connecting plate (18) near the lower side.

10. The heavy-duty support structure as described in claim 1, characterized in that: The first positioning connecting plate (17) located on the upper and lower sides of the first support arm (13) is provided with a horizontal elongated hole (9) and a vertical elongated hole (10) respectively. The second positioning connecting plate (18) located on the upper side of the second support arm (14) is provided with a horizontal elongated hole (9) and a vertical elongated hole (10) at intervals along the vertical direction.

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