A type of high-load-bearing capacity support for heavy-duty pipelines in tees

Abstract

This utility model discloses a high-load-bearing capacity support for a three-way heavy-duty pipeline, including a hanger connecting sleeve. Multiple sleeve connecting holes are correspondingly provided on the side wall of the hanger connecting sleeve. The hanger connecting sleeve is connected to a three-section connecting platform, which includes a first platform connecting piece, a second platform connecting piece, and a third platform connecting piece. The first platform connecting piece and the second platform connecting piece are located on a straight line, and the third platform connecting piece is perpendicular to the first and second platform connecting pieces. The third platform connecting piece is connected to a crossarm connecting lug, and the first and second platform connecting pieces are respectively connected to the crossarm connecting pieces. This utility model, through its three-section connecting platform and multi-bolt hole design, achieves efficient and stable connection of three-way pipelines, significantly improving the support's load-bearing capacity, seismic resistance, and installation flexibility, effectively overcoming the technical defects of traditional supports such as stress concentration and easy instability.

Description

Technical Field

[0001] This utility model relates to the field of pipe gallery support technology, and in particular to a high load-bearing capacity support for a three-way heavy-duty pipeline. Background Technology

[0002] In industrial pipeline systems and building utility tunnel projects, the safe support of heavy-duty pipelines is a core element in ensuring the long-term stable operation of equipment. T-junction heavy-duty pipeline high-load-bearing capacity supports, as key connecting components in the field of prefabricated supports and hangers, are mainly used in large-scale gravity pipeline systems in scenarios such as petrochemicals, power transmission, and municipal utility tunnels. Their core function is to solve the structural connection problem between the multi-directional crossarm channel steel and the hanger channel steel, effectively distributing the pipeline load to the main building structure through mechanical transmission, while simultaneously resisting the impact of dynamic loads such as earthquakes and equipment vibrations.

[0003] Traditional pipe supports have long suffered from structural defects in practical applications. When large gravity pipeline systems need to support high-pressure fluids or heavy equipment, the load-bearing capacity of conventional support connections is often severely mismatched with the actual stress requirements. Existing technologies generally use single bolts or single-sided welding to fix the crossarm channel steel and the hanger channel steel. This connection mode has three fatal flaws: First, single-point connection leads to excessive stress concentration. When the pipeline system is subjected to the combined effects of vertical gravity and horizontal seismic forces, the connection is prone to plastic deformation or even fracture. Second, the number and arrangement of bolts lack scientific matching, making it impossible to adjust the connection strength according to the actual weight gradient of the pipeline. This can lead to redundant design and material waste, or even system collapse due to insufficient load-bearing capacity. Third, traditional single-sided connection disrupts the mechanical balance. When the crossarm channel steel is loaded, a torque effect is generated, causing the support to deflect and shift, which in turn leads to the overall instability of the pipeline system.

[0004] To alleviate the aforementioned problems, the industry has attempted to improve the connection using through-bolt technology. This technology, by creating through holes on both sides of the support and replacing single-sided fasteners with through bolts, can theoretically increase connection strength by 20%-30%. However, in heavy-duty pipeline applications, this improvement still reveals significant limitations: First, the hole layout of the through bolts lacks flexibility. When multiple crossbeams and channel steels need to be connected, existing supports can only support unidirectional or bidirectional connections, failing to meet the spatial layout requirements of tee pipeline systems. Second, the bolt preload is prone to loosening over time, and the nuts are prone to millimeter-level displacement under vibration, leading to fretting wear at the connection interface. More seriously, the contact area between the existing support and the channel steel is insufficient. When encountering sudden impact loads, local stress peaks will occur at the connection interface. Actual measurement data shows that this stress value can reach 1.8 times the material's yield strength, becoming a major cause of structural failure.

[0005] It is worth noting that existing seismic bracing systems generally lack functionality when dealing with three-way pipeline connections. When utility tunnels need to accommodate both main and branch pipelines simultaneously, traditional solutions are forced to use multiple sets of supports, increasing installation time by more than 30% and causing uneven system stiffness distribution due to the increased number of connection points. Field tests show that the failure rate of connection nodes in such assembled structures is as high as 4.7 times that of conventional supports in earthquake simulation experiments. Although some manufacturers have attempted to increase the support wall thickness or use high-strength steel, this brings new problems such as a 40% increase in weight and loss of installation flexibility. Especially in high-altitude operations or narrow utility tunnel spaces, heavy-duty design becomes a construction safety hazard. Therefore, there is a need for a high-load-bearing capacity heavy-duty tee support for pipelines. Utility Model Content

[0006] To overcome the shortcomings of existing technologies, a high-load-bearing capacity tee for heavy-duty pipelines is provided.

[0007] This utility model is achieved through the following solution:

[0008] A high-load-bearing capacity tee for heavy-duty pipelines includes a hanger connecting sleeve with multiple sleeve connecting holes on its side wall. The hanger connecting sleeve is connected to a three-section connecting platform, which includes a first platform connecting piece, a second platform connecting piece, and a third platform connecting piece. The first platform connecting piece and the second platform connecting piece are aligned on a straight line, and the third platform connecting piece is perpendicular to both the first and second platform connecting pieces. The third platform connecting piece is connected to a crossarm connecting lug, and the first and second platform connecting pieces are respectively connected to the crossarm connecting pieces.

[0009] The sleeve connection holes are evenly distributed on the side wall of the boom connection sleeve.

[0010] The boom connecting sleeve is a square tube-shaped sleeve structure, and the boom connecting sleeve is detachably connected to the boom.

[0011] The crossarm connecting lugs are evenly provided with connecting holes.

[0012] The three-section connecting platform is perpendicular to the connecting sleeve of the boom.

[0013] The crossarm connecting piece is perpendicular to the crossarm connecting lug.

[0014] The three-section connecting platform is provided with a number of connecting platform connection holes, which are evenly distributed on the first platform connecting piece, the second platform connecting piece, and the third platform connecting piece.

[0015] Both the crossarm connecting piece and the crossarm connecting lug are connected to the corresponding crossarm.

[0016] Reinforcing plates are provided at the corners where the three-section connecting platform connects to the boom connecting sleeve. One end of the reinforcing plate is connected to the boom connecting sleeve, and the other end of the reinforcing plate is connected to the three-section connecting platform.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. This utility model discloses a high-load-bearing capacity support for tee heavy-duty pipelines. Through a unique three-section connection platform design, the first and second platform connecting pieces, along with the vertical third platform connecting piece, form a stable three-dimensional connection node, achieving efficient three-way connection and load distribution. This structure can simultaneously connect crossarms in three directions, converging pipeline loads from multiple directions and effectively transferring them to the hanger and the main building structure through the hanger connecting sleeve. This solves the problem that traditional supports cannot meet the spatial layout requirements of tee pipelines and avoids the defects of uneven system stiffness and cumbersome installation caused by assembling multiple sets of supports.

[0019] 2. The sleeve connection holes, crossarm connection lug connection holes, and connection platform connection holes in this application are all designed with multiple holes evenly distributed, allowing for the use of multiple high-strength bolts for fastening. This multi-hole design not only provides redundant load-bearing paths, avoiding the risk of single-point failure, but also allows for the scientific matching of the number and grade of bolts according to the actual load, achieving a gradient adjustment of connection strength. This avoids material waste and ensures a safety margin for the connection.

[0020] 3. Surface Contact and Torque Resistance Design: Large contact surfaces are formed between the crossarm connecting plate and the platform connecting plate, and between the crossarm and the lug and connecting plate, significantly reducing contact compressive stress. At the same time, the mutually perpendicular layout (such as the platform plate being perpendicular to the hanger sleeve, and the crossarm connecting plate being perpendicular to the lug) constitutes a stable torque resistance structure, effectively suppressing the deflection tendency of the crossarm after being loaded, and ensuring the stability of the support under complex stress.

[0021] 4. The reinforcing plate directly strengthens the corner area where stress is most concentrated, significantly improving the bending and shear strength of the joint area. It can effectively resist dynamic load impacts and sudden impact loads caused by earthquakes, equipment vibrations, etc., and prevent the stress peak from reaching the material yield limit, thereby ensuring the safety of the entire pipeline system.

[0022] 5. This application features a reasonable structure that facilitates installation and maintenance: the hanger connecting sleeve adopts a square tubular sleeve structure, which can be detachably connected to the hanger, facilitating adjustment of the installation height and alignment. All connections are achieved through bolts, which are standard parts and eliminate the need for on-site welding, ensuring construction quality, reducing the difficulty and risk of working at heights and in confined spaces, and also facilitating subsequent pipeline maintenance and adjustment. Attached Figure Description

[0023] Figure 1This is a structural schematic diagram of a high-load-bearing capacity support for a three-way heavy-duty pipeline according to the present invention;

[0024] Figure 2 This is a schematic diagram showing the usage state of a three-way heavy-duty pipeline high-bearing capacity support according to this utility model;

[0025] Figure 3 This is a schematic diagram of another embodiment of the high load-bearing capacity support for a three-way heavy-duty pipeline according to this utility model;

[0026] Figure 4 This is a schematic diagram showing the usage state of another embodiment of the high load-bearing capacity support for a three-way heavy pipeline according to this utility model;

[0027] In the diagram: 1 is the boom connecting sleeve, 2 is the sleeve connecting hole, 3 is the boom, 4 is the crossarm connecting lug, 5 is the crossarm connecting lug connecting hole, 6 is the crossarm connecting piece, 7 is the three-section connecting platform, 71 is the first platform connecting piece, 72 is the second platform connecting piece, 73 is the third platform connecting piece, 8 is the connecting platform connecting hole, 9 is the crossarm, and 10 is the reinforcing piece. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0029] Example 1

[0030] like Figure 1 , 2 As shown, a three-way heavy-duty pipeline high-load-bearing capacity support includes a hanger connecting sleeve 1. Multiple sleeve connecting holes 2 are correspondingly provided on the side wall of the hanger connecting sleeve 1. The hanger connecting sleeve 1 is connected to a three-section connecting platform 7, which includes a first platform connecting piece 71, a second platform connecting piece 72, and a third platform connecting piece 73. The first platform connecting piece 71 and the second platform connecting piece 72 are located on a straight line, and the third platform connecting piece 73 is perpendicular to the first platform connecting piece 71 and the second platform connecting piece 72. The third platform connecting piece 73 is connected to a crossarm connecting lug 4, and the first platform connecting piece 71 and the second platform connecting piece 72 are respectively connected to a crossarm connecting piece 6. The hanger and crossarm are connection structures to the outside world during operation and are not within the structural protection scope of this utility model; therefore, their structure will not be further explained here.

[0031] The sleeve connection holes 2 are evenly distributed on the side wall of the rod connecting sleeve 1. The rod connecting sleeve 1 is a square tube-shaped sleeve structure, and the rod connecting sleeve 1 is detachably connected to the rod 3. The rod connecting sleeve 1 is made of square steel tube, with multiple sleeve connection holes 2 evenly distributed on its side wall. This design allows the rod 3 to be inserted from both ends of the sleeve and fastened by bolts passing through the corresponding sleeve connection holes 2, providing a flexible and reliable vertical connection and load-bearing capacity transfer.

[0032] The crossarm connecting lug 4 is provided with connecting holes 5 evenly distributed. The three-section connecting platform 7 is perpendicular to the boom connecting sleeve 1. The crossarm connecting piece 6 is perpendicular to the crossarm connecting lug 4. Several connecting platform connecting holes 8 are provided on the three-section connecting platform 7, which are evenly distributed on the first platform connecting piece 71, the second platform connecting piece 72, and the third platform connecting piece 73. The three-section connecting platform 7 is formed by precision cold bending or cutting and welding of a single steel plate, creating mutually perpendicular first, second, and third platform connecting pieces. The first and second platform connecting pieces are located on the same straight line and are used to bear loads in one direction; the third platform connecting piece is perpendicular to the former and is used to bear loads in another vertical direction. Multiple connecting platform connecting holes 8 are machined on the first platform connecting piece 71, the second platform connecting piece 72, and the third platform connecting piece 73. These holes are evenly distributed based on mechanical calculations to ensure that when connected to the crossarm connecting piece 6, the bolt group can form a combined force to jointly bear the load, avoiding stress concentration.

[0033] Both the crossarm connecting piece 6 and the crossarm connecting lug 4 are connected to the crossarm 9. There are three crossarms 9 in multiple directions. Two crossarm connecting pieces 6 are respectively fixed to the first platform connecting piece 71 and the second platform connecting piece 72 with bolts. The crossarm connecting lug 4 is fixed to the third platform connecting piece 73 with bolts. The crossarm connecting lug 4 has multiple crossarm connecting lug connecting holes 5. The crossarm 9 (usually channel steel) can be inserted into the U-shaped slot of the crossarm connecting piece 6 or clamped to the crossarm connecting lug 4 with bolts to achieve a reliable connection.

[0034] This utility model achieves efficient and stable connection of three-way pipelines through a three-section connection platform and multi-bolt hole design, significantly improving the bearing capacity, seismic resistance and installation flexibility of the support, and effectively overcoming the technical defects of traditional supports such as stress concentration and easy instability.

[0035] Example 2

[0036] The similarities between this embodiment and the previous embodiment will not be repeated here; the differences are as follows:

[0037] like Figure 3 , 4As shown, in this embodiment, reinforcing plates 10 are also provided at the corners where the three-section connecting platform 7 connects to the hanger connecting sleeve 1. One end of the reinforcing plate 10 is connected to the hanger connecting sleeve 1, and the other end of the reinforcing plate 10 is connected to the three-section connecting platform 7. This design enhances the bending and fatigue resistance of the support at the corners where stress is most concentrated under heavy loads. The structure of the reinforcing plate can efficiently transfer the bending moment of the platform to the hanger connecting sleeve, avoiding cracks or plastic deformation at the corners due to stress concentration. It is particularly suitable for applications with high seismic fortification requirements or those subjected to severe vibration loads. The usage process is the same as in Embodiment 1. The added reinforcing plate 10 requires no additional operation during installation, but it plays a key reinforcing role under load.

[0038] The usage process of this application is briefly described as follows:

[0039] Positioning and installing hangers: Position and install hangers 3 on the building roof slab or structural beam according to the design drawings.

[0040] Install the support body: Fit the rod connecting sleeve 1 into the rod 3 at the predetermined height, adjust it to be horizontal, and then tighten the two by passing bolts through the sleeve connecting hole 2.

[0041] Connecting the crossarms: Insert and fix the crossarms 9 in two directions to the two crossarm connecting pieces 6 respectively. Connect the crossarm 9 in the third direction to the crossarm connecting lug 4 with bolts.

[0042] Final tightening and inspection: Using a torque wrench, apply the specified preload to all connecting bolts as required by the design to ensure all connection points are securely tightened. Check that all components are installed correctly and that the crossbeam is level. In practical applications, the specific procedures may be modified according to actual conditions, which will not be elaborated here.

[0043] Although the technical solutions of this utility model have been described and enumerated in detail, it should be understood that modifications to the above embodiments or the adoption of equivalent alternatives are obvious to those skilled in the art. Such modifications or improvements made without departing from the spirit of this utility model are all within the scope of protection claimed by this utility model.

Claims

1. A high-load-bearing capacity support for a tee-type heavy-duty pipeline, characterized in that: The support includes a rod connecting sleeve (1), and a plurality of sleeve connecting holes (2) are provided on the side wall of the rod connecting sleeve (1). The rod connecting sleeve (1) is connected to a three-section connecting platform (7). The three-section connecting platform (7) includes a first platform connecting piece (71), a second platform connecting piece (72), and a third platform connecting piece (73). The first platform connecting piece (71) and the second platform connecting piece (72) are located on a straight line. The third platform connecting piece (73) is perpendicular to the first platform connecting piece (71) and the second platform connecting piece (72). The third platform connecting piece (73) is connected to a crossbeam connecting lug (4). The first platform connecting piece (71) and the second platform connecting piece (72) are respectively connected to the crossbeam connecting piece (6).

2. The high-load-bearing capacity support for a tee-type heavy-duty pipeline according to claim 1, characterized in that: The sleeve connection holes (2) are evenly distributed on the side wall of the rod connection sleeve (1).

3. The high-bearing-capacity support for heavy-duty pipelines according to claim 1, characterized in that: The rod connecting sleeve (1) is a square tube-shaped sleeve structure, and the rod connecting sleeve (1) and the rod (3) are detachably connected.

4. The high-bearing-capacity support for a tee-type heavy-duty pipeline according to claim 1, characterized in that: The crossarm connecting lugs (4) are provided with connecting holes (5) evenly distributed.

5. A high-load-bearing capacity support for a tee-type heavy-duty pipeline according to claim 1, characterized in that: The three-section connecting platform (7) is perpendicular to the boom connecting sleeve (1).

6. A high-load-bearing capacity support for a tee-type heavy-duty pipeline according to claim 1, characterized in that: The crossarm connecting piece (6) is perpendicular to the crossarm connecting lug (4).

7. A high-load-bearing capacity support for heavy-duty pipelines according to claim 1, characterized in that: A number of connection holes (8) are provided on the three-section connection platform (7), and the connection holes (8) are evenly distributed on the first platform connection piece (71), the second platform connection piece (72), and the third platform connection piece (73).

8. A high-load-bearing capacity support for a tee-type heavy-duty pipeline according to claim 1, characterized in that: The crossarm connecting piece (6) and the crossarm connecting lug (4) are both connected to the crossarm (9).

9. A high-load-bearing capacity support for a tee-type heavy-duty pipeline according to claim 1, characterized in that: Reinforcing plates (10) are provided at the corners where the three-section connecting platform (7) connects to the boom connecting sleeve (1). One end of the reinforcing plate (10) is connected to the boom connecting sleeve (1), and the other end of the reinforcing plate (10) is connected to the three-section connecting platform (7).

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