Three-dimensional adaptive modular pipeline seismic isolation support

Abstract

The utility model provides a kind of three-dimensional adaptive modular pipeline shock isolation support, including base, and the pipe fixing steel hoop is connected at the top of base by pipe support, the base bottom center is fixedly connected with ground by bearing column, and the base four corners are fixedly connected with ground by universal energy dissipation support foot: bearing device is combined with energy dissipation device, while supporting pipeline, multiple energy dissipation mechanism acts to avoid stress excessive concentration, ensure its good shock isolation performance;Support uses modular design, when partial damage, it is unnecessary to replace support as a whole, substantially shorten maintenance time and reduce cost, provide high reliable, easily maintained pipeline shock isolation solution for lifeline engineering.

Description

Technical Field

[0001] This utility model relates to the field of building pipeline seismic isolation technology, and in particular to a three-dimensional adaptive modular pipeline seismic isolation support. Background Technology

[0002] The piping systems in medical buildings play a crucial role in supplying oxygen and water, and their continuity and safety are directly related to patient safety. However, traditional pipe fixing methods are insufficient to meet the multi-directional displacement requirements under seismic loads. While rigid supports can stabilize pipes, they completely restrict free movement, making them prone to breakage due to stress concentration during earthquakes. Laminated rubber bearings, although allowing for some horizontal deformation, cannot accommodate vertical displacement and multi-directional coupling effects. Furthermore, long-term material aging can lead to reset failure, resulting in significant residual deformation after earthquakes and lengthy manual repair times, severely impacting the efficiency of restoring the functionality of medical facilities.

[0003] Existing seismic isolation supports for pipelines generally suffer from limitations in functionality and maintenance costs. Most solutions rely on a single energy dissipation mechanism, such as horizontal sliding hinges or rubber shear deformation, which are insufficient to cope with the simultaneous release of horizontal and vertical energy during earthquakes. Furthermore, traditional energy dissipation devices and load-bearing structures are often integrated, lacking modular design. When a part of the support is damaged, the entire support must be replaced, leading to not only high maintenance costs but also forcing the pipeline system to shut down, potentially posing significant risks in sensitive scenarios such as medical settings.

[0004] Therefore, there is an urgent need to design a pipeline seismic isolation support that takes into account both multi-directional displacement adaptability and economical maintenance. This support should be able to meet the needs of large-scale multi-directional deformation of pipelines during earthquakes, and also allow for the rapid replacement of key components in the event of local damage, avoiding secondary damage to the pipeline system caused by the disassembly and reassembly of the overall structure. This would provide reliable protection for lifeline projects such as medical buildings. Summary of the Invention

[0005] In order to overcome the problems existing in the prior art, the purpose of this utility model is to provide a three-dimensional adaptive modular pipeline seismic isolation support. By setting load-bearing columns and universal energy-dissipating support feet, it can not only meet the displacement compensation in any direction caused by earthquakes, but also has a variety of energy dissipation mechanisms, which greatly reduces the impact of earthquakes on pipelines.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A three-dimensional adaptive modular pipe vibration isolation support includes a base 5, with a pipe fixing steel hoop 3 connected to the top of the base 5 via a pipe support 4. The bottom center of the base 5 is fixedly connected to the ground via a load-bearing column 7, and the four corners of the base 5 are fixedly connected to the ground via universal energy-dissipating support feet 9.

[0007] The pipe fixing steel hoop 3 is equipped with a buffer ring 2 inside, and the pipe 1 is located inside the buffer ring 2.

[0008] The load-bearing column 7 includes a first cylinder 703 and a second cylinder 704 nested together. A preload spring 710 is provided inside the first cylinder 703 and the second cylinder 704. Under the action of external force, the first cylinder 703 slides axially relative to the second cylinder 704.

[0009] The top of the first cylindrical body 703 and the bottom surface of the base 5 are uniformly provided with matching spherical grooves 702, and ball bearings 701 are provided in the spherical grooves 702; the bottom of the second cylindrical body 704 is provided with a column foot 705, and the column foot 705 is fixed to the ground by bolts 706.

[0010] The universal energy-dissipating support foot 9 includes a hydraulic damper 6. One end of the hydraulic damper 6 is fixedly connected to the base 5 through a universal ball flange connector 8, and the other end is fixedly connected to the ground through a universal ball flange connector 8. The hydraulic damper 6 is arranged at an angle relative to the base 5 and the ground.

[0011] The hydraulic damper 6 includes a third cylinder 601 and a fourth cylinder 606 nested together. A piston rod 609 is provided inside the third cylinder 601. The piston rod 609 passes through the cover plate 602 and the first sealing ring 603 provided at the top of the fourth cylinder 606 and enters the interior of the fourth cylinder 606 to connect with the piston head 610. A partition plate 612 is provided inside the fourth cylinder 606. A second sealing ring 613 is provided on the side of the partition plate 612 near the piston head 610. The space between the cover plate 602 and the partition plate 612 is filled with hydraulic oil 604.

[0012] The piston head 610 is provided with multiple damping holes 605.

[0013] A first conical spring 608 is provided between the bottom of the third cylinder 601 and the cover plate 602 along the direction of the piston rod 609; a second conical spring 607 is provided axially between the partition plate 612 and the bottom of the fourth cylinder 606; air is filled between the bottom of the third cylinder 601 and the cover plate 602, and between the partition plate 612 and the bottom of the fourth cylinder 606.

[0014] The third cylinder 601 and the fourth cylinder 606 are respectively provided with cylinder connecting rods 611 at their ends, and the end of the cylinder connecting rods 611 is provided with mounting holes 614.

[0015] The universal ball flange connector 8 includes a flange 801, a ball mounting shell 802 in the middle of the flange 801, a ball 803 embedded in the ball mounting shell 802, a ball connecting rod 804 on the ball 803, and a connecting hole at the end of the ball connecting rod 804 that matches the mounting hole 614 at the end of the cylindrical connecting rod 611.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model, by setting up a load-bearing column 7, a hydraulic damper 6, and a universal ball flange connector 8, can not only meet the displacement compensation in any direction caused by earthquakes, but also has multiple energy dissipation mechanisms. When a horizontal earthquake occurs, the load-bearing column 7, which is fixed to the ground, slides relative to the base 5 through the ball bearings 701 set on the top of the column. A portion of the energy generated by the earthquake is dissipated through rolling friction. At the same time as sliding, the ball 803 in the universal ball flange connector 8, which is fixed to the lower surface of the base 5, rotates, causing the hydraulic damper 6, which is arranged obliquely in space, to be stretched and compressed. And begin to dissipate energy; when a vertical earthquake occurs, the spring 710 inside the load-bearing column 7 begins to extend and retract, causing the first cylinder 703 and the second cylinder 704 to move relative to each other. Part of the energy generated by the earthquake is stored as the elastic potential energy of the spring. At the same time as the movement, the ball 803 in the universal ball flange connector 8 fixed on the lower surface of the base 5 rotates, causing the hydraulic damper 6 arranged obliquely in space to stretch and compress, and begin to dissipate energy; multiple energy dissipation devices work together to dissipate the energy generated by the earthquake, greatly reducing the impact of the earthquake on the pipeline.

[0017] 2. The combination of the load-bearing device (load-bearing column 7) and the energy-dissipating device (universal energy-dissipating support foot 9) of this utility model can not only ensure the good support performance of the support after being damaged by multiple earthquakes, but also only replace the locally damaged parts without replacing the entire pipeline seismic isolation support. This greatly reduces maintenance costs and avoids secondary damage to the pipeline system caused by the disassembly and reassembly of the entire structure, thus providing reliable protection for lifeline projects such as medical buildings.

[0018] In summary, this utility model, through the combined installation of load-bearing and energy-dissipating devices, supports pipelines passing through the seismic isolation layer in medical buildings while maintaining their good seismic isolation performance. It can also accommodate displacements caused by different earthquake directions and allows multiple energy-dissipating devices to work together to dissipate the energy generated by earthquakes, greatly reducing the impact of earthquakes on pipelines. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a three-dimensional schematic diagram of the load-bearing column 7 of this utility model. Figure 3 This is a three-dimensional schematic diagram of the universal ball flange connector 8 and the hydraulic damper 6 of this utility model; Figure 4 This is a sectional view of the load-bearing column 7 of this utility model.

[0021] Figure 5 This is a cross-sectional view of the hydraulic damper of this utility model.

[0022] In the diagram: 1-pipe, 2-buffer ring, 3-fixed steel hoop, 4-pipe support, 5-base, 6-hydraulic damper, 7-load-bearing column, 8-universal ball flange connector, 9-universal energy-dissipating support foot, 601-third cylinder, 602-cover plate, 603-first sealing ring, 604-hydraulic oil, 605-damping hole, 606-fourth cylinder, 607-second conical spring, 608-first conical spring, 609-live 610-Piston head, 611-Cylinder connecting rod, 612-Divider plate, 613-Second sealing ring, 614-Mounting hole, 701-Ball, 702-Spherical groove, 703-First cylinder, 704-Second cylinder, 705-Pillar foot, 706-Bolt, 709-Preload spring, 710-Spring, 801-Flange, 802-Spherical outer shell, 803-Spherical body, 804-Spherical connecting rod. Detailed Implementation

[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] Reference Figure 1 A three-dimensional adaptive modular pipe vibration isolation support includes a base 5. A pipe fixing steel hoop 3 is connected to the top of the base 5 via a pipe support 4. The bottom center of the base 5 is fixedly connected to the ground via a load-bearing column 7. The four corners of the base 5 are fixedly connected to the ground via universal energy-dissipating support feet 9. (See also...) Figure 3 .

[0025] See Figure 1 The pipe fixing steel hoop 3 is provided with a buffer ring 2 inside, and the pipe 1 is located inside the buffer ring 2; by squeezing the fixing steel hoop 3, the gap between the fixing steel hoop 3 and the pipe 1 is reduced, and the structural stability is enhanced.

[0026] See Figure 2 , Figure 4 The load-bearing column 7 includes a first cylinder 703 and a second cylinder 704 nested together. A preload spring 710 is provided inside the first cylinder 703 and the second cylinder 704. Under the action of external force, the first cylinder 703 slides axially relative to the second cylinder 704.

[0027] The top of the first cylinder 703 and the bottom surface of the base 5 are uniformly provided with matching spherical grooves 702, and ball bearings 701 are provided in the spherical grooves 702. The ball bearings 701 are always in close contact with the lower surface of the base 5 to stably provide vertical support for the bracket. When stationary, the weight of the upper structure such as the pipe compresses the preload spring 710 installed inside the load-bearing column 7, providing an upward reaction force so that the ball bearings 701 are in close contact with the lower surface of the base 5. When a horizontal earthquake occurs, the ball bearings 701 roll relative to the lower surface of the base 5 while maintaining close contact, satisfying the horizontal displacement caused by the earthquake. When a vertical earthquake occurs, the spring 710 expands and contracts, ensuring that the ball bearings 701 are in close contact with the lower surface of the base 5 while satisfying the vertical displacement caused by the earthquake.

[0028] See Figure 2 The second cylinder 704 has a column base 705 at its bottom, which is fixed to the ground by bolts 706. This ensures the stability of the load-bearing column 7, prevents column instability, and further guarantees the support of the entire support structure.

[0029] See Figure 3 The universal energy-dissipating support foot 9 includes a hydraulic damper 6. One end of the hydraulic damper 6 is fixedly connected to the base 5 through a universal ball flange connector 8, and the other end is fixedly connected to the ground through the universal ball flange connector 8.

[0030] See Figure 5 The hydraulic damper 6 includes a third cylinder 601 and a fourth cylinder 606 nested together. A piston rod 609 is provided inside the third cylinder 601. The piston rod 609 passes through the cover plate 602 and the first sealing ring 603 provided at the top of the fourth cylinder 606 and enters the interior of the fourth cylinder 606 to connect with the piston head 610. A partition plate 612 is provided inside the fourth cylinder 606. A second sealing ring 613 is provided on the side of the partition plate 612 near the piston head 610. The space between the cover plate 602 and the partition plate 612 is filled with hydraulic oil 604.

[0031] The hydraulic damper 6 is arranged obliquely in space, preferably at 45°. This angle can better balance the impact of vertical and horizontal earthquakes on the pipeline, but a suitable angle can also be selected for installation according to the actual support site installation requirements.

[0032] The piston head 610 is provided with multiple damping holes 605.

[0033] A first conical spring 608 is provided between the bottom of the third cylinder 601 and the cover plate 602 along the direction of the piston rod 609 axis; a second conical spring 607 is provided axially between the partition plate 612 and the bottom of the fourth cylinder 606. Air is filled between the bottom of the third cylinder 601 and the cover plate 602, and between the partition plate 612 and the bottom of the fourth cylinder 606. During the small earthquake phase, the conical spring 608 provides low stiffness to buffer the hydraulic damper 6 for axial vibration. During the large earthquake phase, the stiffness of the conical spring 608 increases sharply, and the hydraulic damper 6 switches to a high damping mode to form a double insurance of "spring limit + damping energy dissipation". In the post-earthquake phase, the hydraulic damper 6 achieves a self-resetting effect by relying on the elasticity of the conical spring 608 and the pressure balance of the air.

[0034] The third cylinder 601 and the fourth cylinder 606 are respectively provided with cylinder connecting rods 611 at their ends, and the end of the cylinder connecting rods 611 is provided with mounting holes 614.

[0035] When the device is compressed by an external load, the cylinder connecting rod 611 drives the piston rod 609 to push the piston head 610. The piston head 610 slides relative to the hydraulic oil 604. Due to the pressure, the hydraulic oil 604 flows in the damping hole 605 and undergoes relative displacement, thus achieving the effect of energy dissipation.

[0036] The universal ball flange connector 8 includes a flange 801, a ball mounting shell 802 in the middle of the flange 801, a ball 803 embedded in the ball mounting shell 802, a ball connecting rod 804 on the ball 803, and a connecting hole at the end of the ball connecting rod 804 that matches the mounting hole 614 at the end of the cylindrical connecting rod 611.

[0037] The working principle of this utility model is as follows: The base 5 is fixedly connected to the ground at the center of the bottom via a load-bearing column 7, and the four corners of the base 5 are fixedly connected to the ground via universal energy-dissipating support feet 9.

[0038] When a horizontal earthquake occurs, the load-bearing column 7, which is fixed to the ground, slides relative to the base 5 through the ball bearings 701 set on the top of the column. Some of the energy generated by the earthquake is dissipated through rolling friction. At the same time as the sliding, the ball 803 in the universal ball flange connector 8 fixed to the lower surface of the base 5 rotates, causing the hydraulic damper 6 arranged obliquely in space to stretch and compress, and begin to dissipate energy. When a vertical earthquake occurs, the spring 710 installed inside the load-bearing column 7 begins to extend and retract, causing the first cylinder 703 and the second cylinder 704 to move relative to each other. Some of the energy generated by the earthquake is stored as the elastic potential energy of the spring. At the same time as the movement, the ball 803 in the universal ball flange connector 8 fixed to the lower surface of the base 5 rotates, causing the hydraulic damper 6 arranged obliquely in space to stretch and compress, and begin to dissipate energy.

[0039] The hydraulic damper 6 has a first conical spring 608 arranged between the bottom of the third cylinder 601 and the cover plate 602 along the direction of the piston rod 609; and a second conical spring 607 arranged axially between the partition plate 612 and the bottom of the fourth cylinder 606. During the small earthquake phase, the first conical spring 608 and the second conical spring 607 buffer the axial vibration of the hydraulic damper 6 with low stiffness. During the large earthquake phase, the stiffness of the first conical spring 608 and the second conical spring 607 increases sharply, and the hydraulic damper 6 switches to a high damping mode to form a double insurance of "spring limit + damping energy dissipation". In the post-earthquake phase, the hydraulic damper 6 achieves a self-resetting effect by relying on the elasticity of the first conical spring 608 and the second conical spring 607 and the pressure balance of the air.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A three-dimensional adaptive modular pipe vibration isolation support, comprising a base (5), wherein a pipe fixing steel hoop (3) is connected to the top of the base (5) via a pipe support (4), characterized in that, The base (5) is fixedly connected to the ground at the bottom center through a load-bearing column (7), and the four corners of the base (5) are fixedly connected to the ground through universal energy-dissipating support feet (9).

2. The three-dimensional adaptive modular pipe vibration isolation support according to claim 1, characterized in that, The pipe fixing steel hoop (3) is provided with a buffer ring (2), and the pipe (1) is located inside the buffer ring (2).

3. The three-dimensional adaptive modular pipe vibration isolation support according to claim 1, characterized in that, The load-bearing column (7) includes a first cylinder (703) and a second cylinder (704) nested together. The first cylinder (703) and the second cylinder (704) are provided with a preload spring (710). Under the action of external force, the first cylinder (703) slides axially relative to the second cylinder (704).

4. A three-dimensional adaptive modular pipe vibration isolation support according to claim 3, characterized in that, The top of the first cylindrical body (703) and the bottom surface of the base (5) are uniformly provided with matching spherical grooves (702), and ball bearings (701) are provided in the spherical grooves (702); the bottom of the second cylindrical body (704) is provided with a column foot (705), and the column foot (705) is fixed to the ground by bolts (706).

5. A three-dimensional adaptive modular pipe vibration isolation support according to claim 1, characterized in that, The universal energy-dissipating support foot (9) includes a hydraulic damper (6). One end of the hydraulic damper (6) is fixedly connected to the base (5) through a universal ball flange connector (8), and the other end is fixedly connected to the ground through a universal ball flange connector (8). The hydraulic damper (6) is arranged at an angle relative to the base (5) and the ground.

6. A three-dimensional adaptive modular pipe vibration isolation support according to claim 5, characterized in that, The hydraulic damper (6) includes a third cylinder (601) and a fourth cylinder (606) nested together. The third cylinder (601) is provided with a piston rod (609). The piston rod (609) passes through the cover plate (602) and the first sealing ring (603) provided on the top of the fourth cylinder (606) and enters the interior of the fourth cylinder (606) to connect with the piston head (610). The fourth cylinder (606) is provided with a partition plate (612). The partition plate (612) is provided with a second sealing ring (613) on the side near the piston head (610). The space between the cover plate (602) and the partition plate (612) is filled with hydraulic oil (604).

7. A three-dimensional adaptive modular pipe vibration isolation support according to claim 6, characterized in that, The piston head (610) is provided with multiple damping holes (605).

8. A three-dimensional adaptive modular pipe vibration isolation support according to claim 6, characterized in that, A first conical spring (608) is provided between the bottom of the third cylinder (601) and the cover plate (602) along the direction of the piston rod (609); a second conical spring (607) is provided axially between the partition plate (612) and the bottom of the fourth cylinder (606); air is filled between the bottom of the third cylinder (601) and the cover plate (602) and between the partition plate (612) and the bottom of the fourth cylinder (606).

9. A three-dimensional adaptive modular pipe vibration isolation support according to claim 6, characterized in that, The third cylinder (601) and the fourth cylinder (606) are respectively provided with cylinder connecting rods (611), and the end of the cylinder connecting rods (611) is provided with mounting holes (614).

10. A three-dimensional adaptive modular pipe vibration isolation support according to claim 5, characterized in that, The universal ball flange connector (8) includes a flange (801), a ball mounting shell (802) in the middle of the flange (801), a ball (803) embedded in the ball mounting shell (802), a ball connecting rod (804) on the ball (803), and a connecting hole at the end of the ball connecting rod (804) that matches the mounting hole (614) at the end of the cylindrical connecting rod (611).

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