A three-dimensional self-adapting seismic isolation pipeline system
By designing universal ball joint components and limiting buffer rings, the problem of poor three-dimensional displacement adaptability of pipeline systems during earthquakes was solved, achieving a three-dimensional adaptive seismic isolation effect with good sealing and high reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 新疆兵团城建集团有限公司
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-09
Smart Images
Figure CN224339734U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seismic isolation technology for building pipelines, and in particular to a three-dimensional adaptive seismic isolation pipeline system. Background Technology
[0002] With the widespread application of seismic isolation technology in medical buildings, liquid delivery pipeline systems (such as oxygen supply pipelines and medical wastewater discharge pipelines) that pass through the seismic isolation layer have become a core component in ensuring the continuity of medical functions after an earthquake. These pipeline systems not only need to adapt to the three-dimensional composite displacement that may occur in the seismic isolation layer, but also must maintain strict sealing performance to cope with fluctuations in liquid delivery pressure.
[0003] However, current pipeline systems face significant challenges in engineering practice: the rigid connection between traditional fixed supports and pipelines is difficult to coordinate with structural displacements caused by earthquakes, which can easily lead to stress concentration; although the widely used corrugated compensators can absorb axial deformation, the direction of displacement during an earthquake is unpredictable, and the corrugated pipes are prone to distortion or even rupture when subjected to shear or torsion.
[0004] The utility model patent application number 201721879113.9 discloses a seismic isolation pipe connection system, including: a first spherical pipe head, a first spherical cup, and a first pressure cap. The first spherical cup is provided with a second extension pipe and an internal thread structure. The first spherical pipe head is inserted into the first spherical cup and fixed by the first pressure cap provided with external threads. The rotation of the spherical pipe head in the spherical cup resists the torsion caused by the earthquake. The pipe joint lacks a displacement-triggered sealing design. When the spherical joint rotates, gaps may be generated, leading to leakage of internal media. When the rotational displacement exceeds the limit, the spherical cup and the spherical pipe head will collide, causing the joint to be damaged. Summary of the Invention
[0005] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a three-dimensional adaptive seismic isolation sleeve system. The universal ball joint assembly can compensate for large displacements in any direction of 360° in the pipeline system and effectively prevent media leakage under seismic action. At the same time, during rotation, the limiting buffer ring can effectively solve the collision problem caused by excessive rotation angle. It has the advantages of simple installation, adaptability to large deformation compensation, and good sealing performance.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A three-dimensional adaptive seismic isolation pipeline system includes a conveying pipeline 3 that can be fixed between the top surface 1 and the bottom surface 6 of a building or fixed to a wall. Corrugated pipes 5 are intermittently connected to the conveying pipeline 3, and the two ends of the corrugated pipes 5 are respectively connected to the hinge joint connection end of the conveying pipeline 3 through universal ball joint assembly 4.
[0008] The universal ball joint assembly 4 includes a first extension tube 403, one end of which is provided with an internal thread. The hinge connection end of the conveying pipe 3 is also provided with an internal thread. The external thread of the flange 401 is connected to the internal thread of the first extension tube 403 and the internal thread of the conveying pipe 3, and is fixed by bolts 402. The other end of the first extension tube 403 is connected to a first spherical tube head 404. A second spherical tube head 409 is inserted into the first spherical tube head 404. The end of the second spherical tube head 409 away from the first spherical tube head 404 is connected to a second extension tube 411. The end of the second extension tube 411 is provided with an internal thread. The end of the bellows 5 is also provided with an internal thread. The external thread of the flange 401 is connected to the internal thread of the second extension tube 411 and the internal thread of the bellows 5, and is fixed by bolts 402.
[0009] A first sealing ring 405 is provided between the first spherical tube head 404 and the second spherical tube head 409.
[0010] The second spherical tube head 409 is inserted into the outer side of the connection of the first spherical tube head 404 and connected to the cap 408 with internal threads by external threads.
[0011] A second sealing ring 406 and a shape memory alloy compensation ring 407 are sequentially provided between the pressure cap 408, the second spherical tube head 409, and the first spherical tube head 404. A groove 412 is provided at the end of the pressure cap 408 away from the first spherical tube head 404.
[0012] The second extension tube 411 is provided with a limiting buffer ring 410 near the first spherical tube head 404. The limiting buffer ring 410 is provided with a protrusion 413 that matches the groove 412 on the pressure cap 408.
[0013] The limiting buffer ring 410 is bonded to the second extension tube 411.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. When an earthquake occurs and the pipes passing through the isolation layer of the seismic isolation building undergo significant displacement, part of the displacement is borne by the seismic isolation bracket 2, while the remaining displacement is borne by the corrugated pipe 5 and the universal ball joint assembly 4, thus avoiding excessive stress concentration.
[0016] 2. The universal ball joint assembly 4 can compensate for large displacements of the pipeline system in any direction of 360° by rotating the second ball head 409 within the first ball head 404. In addition, the second ball head 409 generates heat by rotating within the first ball head 404, and the shape memory alloy compensation ring 407 automatically compensates for the sealing gap when the temperature changes, which can effectively prevent media leakage of the universal ball joint assembly 4 under earthquake action.
[0017] 3. During the rotation of the second spherical tube head 409 within the first spherical tube head 404, the limiting buffer ring 410 can effectively solve the collision problem caused by excessive rotation angle and prevent damage to the joint.
[0018] In summary, this utility model has the advantages of simple installation, adaptability to large deformation compensation, good sealing performance, and high reliability. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of a three-dimensional adaptive seismic isolation pipeline system according to the present invention.
[0020] Figure 2 This is a cross-sectional view of the universal ball joint assembly of this utility model.
[0021] Figure 3 This is a schematic diagram showing the connection between the first and second spherical tube heads of this utility model.
[0022] In the diagram: 1. Building roof, 2. Seismic isolation bracket, 3. Traditional pipe, 4. Universal ball joint assembly, 5. Corrugated pipe, 6. Building floor, 401. Flange, 402. Bolt, 403. First extension pipe, 404. First spherical pipe head, 405. First sealing ring, 406. Second sealing ring, 407. Shape memory alloy compensation ring, 408. Gland, 409. Second spherical pipe head, 410. Limiting buffer ring, 411. Second extension pipe, 412. Groove, 413. Protrusion. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings.
[0024] The accompanying drawings in this specification are schematic diagrams used to illustrate the concept of this utility model, and schematically show the shapes of the various parts and their interrelationships. Please note that, in order to clearly show the structure of the components of the embodiments of this utility model, the drawings are not drawn to the same scale. The same reference numerals are used to indicate the same parts.
[0025] Figure 1 A three-dimensional adaptive seismic isolation pipeline system is shown, including a delivery pipeline 3. The delivery pipeline 3 is fixed between the top surface 1 and the bottom surface 6 of the building by a seismic isolation bracket 2, or it can be fixed to the wall of the building. Corrugated pipes 5 are intermittently connected to the delivery pipeline 3. The two ends of the corrugated pipes 5 are respectively connected to the hinge joint connection end of the delivery pipeline 3 through a universal ball joint assembly 4.
[0026] like Figure 2As shown, the universal ball joint assembly 4 includes a first extension tube 403. One end of the first extension tube 403 has an internal thread, and the hinge connection end of the conveying pipe 3 also has an internal thread. The external thread of the flange 401 is connected to the internal thread of the first extension tube 403 and the internal thread of the conveying pipe 3, and is fixed by bolts 402. The other end of the first extension tube 403 is connected to a first spherical tube head 404. A second spherical tube head 409 is inserted into the first spherical tube head 404. The end of the second spherical tube head 409 away from the first spherical tube head 404 is connected to a second extension tube 411. The end of the second extension tube 411 has an internal thread, and the end of the bellows 5 also has an internal thread. The external thread of the flange 401 is connected to the internal thread of the second extension tube 411 and the internal thread of the bellows 5, and is fixed by bolts 402. The flange connection has the advantages of convenient construction and easy replacement later.
[0027] A first sealing ring 405 is provided between the first spherical tube head 404 and the second spherical tube head 409.
[0028] like Figure 3 As shown, the second spherical tube head 409 is inserted into the outer side of the connection of the first spherical tube head 404 and connected to the cap 408 with internal threads by external threads.
[0029] A second sealing ring 406 and a shape memory alloy compensation ring 407 are sequentially provided between the pressure cap 408, the second spherical tube head 409, and the first spherical tube head 404. A groove 412 is provided at the end of the pressure cap 408 away from the first spherical tube head 404. The above structure can compensate for non-pipeline axial displacement caused by earthquakes and also ensure the sealing performance of the universal ball joint assembly 4.
[0030] The second extension tube 411 is provided with a limiting buffer ring 410 near the first spherical tube head 404. The limiting buffer ring 410 has a protrusion 413 that matches the groove 412 on the pressure cap 408. When the second spherical tube head 409 rotates too much in the first spherical tube head 404, the groove 412 on the pressure cap 408 and the protrusion 413 on the limiting buffer ring 410 engage to limit the excessive rotation of the second spherical tube head 409. At the same time, it prevents the first spherical tube head 404 from colliding with the second spherical tube head 409, which could lead to pipe damage and leakage of internal media.
[0031] The limiting buffer ring 410 is bonded to the second extension tube 411.
[0032] The working principle of this utility model is as follows:
[0033] The conveying pipeline 3 includes vertically arranged conveying pipelines and horizontally arranged conveying pipelines. In this embodiment, the conveying pipeline 3 is connected to the top surface 1 and the bottom surface 6 of the building respectively through the seismic isolation bracket 2. The seismic isolation bracket 2 compensates for a portion of the multi-directional displacement caused by the earthquake. The vertically arranged conveying pipeline 3 is connected to the bellows 5 through the universal ball joint assembly 4. This connection method compensates for the remaining displacement caused by the earthquake. That is, the second ball-shaped tube head 409 of the universal ball joint assembly 4 can rotate within the first ball-shaped tube head 404 to compensate for the large displacement of the pipeline system in any 360° direction. Among them, the bellows compensates for the displacement generated in the axial direction of the pipeline, and the universal ball joint assembly compensates for the displacement generated in other directions. In addition, the rotation of the second ball-shaped tube head 409 within the first ball-shaped tube head 404 generates heat. The shape memory alloy compensation ring 407 automatically compensates for the sealing gap when the temperature changes, which can effectively prevent the universal ball joint assembly 4 from leaking media under the action of earthquake.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A three-dimensional adaptive seismic isolation pipeline system, comprising a conveying pipeline (3) that can be fixed between the top surface (1) and the bottom surface (6) of a building or fixed to a wall, characterized in that, A corrugated pipe (5) is intermittently connected to the conveying pipe (3), and the two ends of the corrugated pipe (5) are respectively connected to the hinge connection end of the conveying pipe (3) through a universal ball joint assembly (4).
2. The three-dimensional adaptive seismic isolation pipeline system according to claim 1, characterized in that, The universal ball joint assembly (4) includes a first extension tube (403), one end of which is provided with an internal thread, and the hinge connection end of the conveying pipe (3) is also provided with an internal thread. The external thread of the flange (401) is connected to the internal thread of the first extension tube (403) and the internal thread of the conveying pipe (3), and is fixed by bolts (402). The other end of the first extension tube (403) is connected to a first ball head (404), and a second ball head (409) is inserted into the first ball head (404). The end of the second ball head (409) away from the first ball head (404) is connected to a second extension tube (411). The end of the second extension tube (411) is provided with an internal thread, and the end of the corrugated pipe (5) is also provided with an internal thread. The external thread of the flange (401) is connected to the internal thread of the second extension tube (411) and the internal thread of the corrugated pipe (5), and is fixed by bolts (402).
3. A three-dimensional adaptive seismic isolation pipeline system according to claim 2, characterized in that, A first sealing ring (405) is provided between the first spherical tube head (404) and the second spherical tube head (409).
4. A three-dimensional adaptive seismic isolation pipeline system according to claim 2, characterized in that, The second spherical tube head (409) is inserted into the outer side of the connection of the first spherical tube head (404) and connected to the cap (408) with internal threads by external threads.
5. A three-dimensional adaptive seismic isolation pipeline system according to claim 4, characterized in that, A second sealing ring (406) and a shape memory alloy compensation ring (407) are sequentially provided between the cap (408), the second spherical tube head (409), and the first spherical tube head (404). A groove (412) is provided at the end of the cap (408) away from the first spherical tube head (404).
6. A three-dimensional adaptive seismic isolation pipeline system according to claim 2, characterized in that, The second extension tube (411) is provided with a limiting buffer ring (410) near the first spherical tube head (404), and the limiting buffer ring (410) is provided with a protrusion (413) that matches the groove (412) on the pressure cap (408).
7. A three-dimensional adaptive seismic isolation pipeline system according to claim 6, characterized in that, The limiting buffer ring (410) is bonded to the second extension tube (411).