A vibration isolating connector for oilfield pipelines
By using rubber balls, reinforcement components, and elastic components to disperse vibration stress in oilfield pipelines, the problems of loosening and leakage at connection points caused by vibration were solved, and the sealing performance and structural strength were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 雷佳霖
- Filing Date
- 2025-07-11
- Publication Date
- 2026-05-29
AI Technical Summary
Vibration during the dynamic flow of crude oil in oilfield pipelines can cause loosening of connections and fatigue wear of seals, potentially leading to crude oil leaks.
Using a rubber ball as the core buffer component, combined with reinforcement components, fixing components, connecting components and elastic components, the rubber ball absorbs vibration energy and disperses vibration stress, while the spring and telescopic rod buffer the impact force, preventing loosening of the connection parts and leakage of the sealing ring.
It effectively reduces the impact of vibration on the connection parts, extends the service life of seals and fasteners, prevents crude oil leakage, and enhances the structural strength and sealing performance of the connection parts.
Smart Images

Figure CN224301580U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil pipeline technology, specifically to an anti-vibration connector for oilfield pipelines. Background Technology
[0002] An oil field is a general term for the total amount of oil and gas stored in a certain underground area. It contains very rich resources for exploitation. In order to quickly collect oil, oil wells are often set up above the oil field. Oil field pipelines are tubular transportation facilities used to transport crude oil extracted from the oil field from production nodes such as wellheads, metering stations, and joint stations to processing plants, oil storage depots, or long-distance pipeline networks.
[0003] In existing technologies, crude oil transportation in oil fields requires the use of pipelines as connections to wellheads. However, the dynamic flow of crude oil within the pipeline inevitably causes vibrations at bends and connections. Long-term vibration can affect the fasteners at the pipeline connections. Under repeated cycles of tensile and compressive stress, the seals at the connections may experience fatigue wear, and the preload of the fasteners may gradually decrease, leading to loosening of the connections. In severe cases, this could result in crude oil leakage. To address this, we propose an anti-vibration connector for oilfield pipelines. Utility Model Content
[0004] The purpose of this utility model is to provide an anti-vibration connector for oilfield pipelines to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-vibration connector for oilfield pipelines, comprising a rubber ball, a connecting cylinder fixedly connected to the outside of the rubber ball, a sealing ring sleeved on the outside of the connecting cylinder, a first conveying pipe slidably connected to one of the connecting cylinders, the first conveying pipe having multiple mounting holes on its outside, and a second conveying pipe slidably connected to the outside of the other connecting cylinder; further comprising:
[0006] A reinforcement component is installed on the outside of the conveying pipe to reinforce the connection between the rubber ball and the conveying pipe.
[0007] The components include fixing components and connecting components. The fixing components are located inside the reinforcement components and provide auxiliary support for the reinforcement components. The connecting components are located outside the reinforcement components and connect the reinforcement components with each other.
[0008] The elastic component is located outside the connecting component and is used to elastically push the connecting component.
[0009] The reinforcement component includes a fixing hole one and an arc-shaped fixing piece, and the arc-shaped fixing piece has multiple fixing holes two on its outer side.
[0010] The fixing component includes nut one, and nut two is externally threaded to the fixing component.
[0011] The connecting component includes a second mounting hole and a rotating groove on the outside of the connecting component. A connecting rod is rotatably connected inside one of the rotating grooves, and a connecting rod is rotatably connected inside the other rotating groove. A limit groove is provided inside the connecting rod, and a connecting rod is connected to the rotating shaft inside the limit groove.
[0012] The elastic component includes a telescopic rod, and a spring is sleeved on the outside of the telescopic rod.
[0013] The fixing component is externally slidably connected to the outside of the fixing hole, and the nut is internally threadedly connected to the outside of the fixing component.
[0014] The connecting rod is fixedly connected to the outside of the connecting rod.
[0015] This utility model has at least the following beneficial effects:
[0016] In use, the rubber ball acts as a core buffer component, absorbing the vibration energy of the pipeline. The transmission structure formed by the connecting rod and the connecting rod in the connecting assembly evenly distributes the vibration throughout the connector, avoiding stress concentration at the connection point. The telescopic rod of the elastic component works in conjunction with the spring. The spring buffers the vibration impact force through compression or stretching deformation, while the telescopic rod ensures that the elastic force is precisely applied to counteract the vibration direction, significantly reducing the impact of vibration on the connection part and minimizing damage to the seals and fasteners. The sealing ring fills the gap between the delivery pipe and the connecting cylinder to prevent crude oil leakage. The reinforcement component aligns with the holes on the delivery pipe through the arc-shaped fixing plate and is tightened bidirectionally with the nuts one and two of the fixing component to prevent the connection part from loosening due to vibration, effectively extending the service life of the seals and fasteners. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the reinforcement component structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the elastic component structure of this utility model;
[0020] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;
[0021] In the diagram: 1. Rubber ball; 2. Connecting cylinder; 3. Sealing ring; 4. Conveying pipe one; 401. Mounting hole one; 5. Conveying pipe two; 6. Reinforcing component; 601. Fixing hole one; 602. Arc-shaped fixing piece; 603. Fixing hole two; 7. Fixing component; 701. Nut one; 702. Nut two; 8. Connecting component; 801. Mounting hole two; 802. Rotating groove; 803. Connecting rod one; 804. Connecting rod two; 805. Limiting groove; 806. Connecting rod; 9. Elastic component; 901. Telescopic rod; 902. Spring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1
[0024] Please see Figures 1 to 4 This utility model provides a technical solution: an anti-vibration connector for oilfield pipelines, including a rubber ball 1, a connecting cylinder 2 fixedly connected to the outside of the rubber ball 1, a sealing ring 3 sleeved on the outside of the connecting cylinder 2, a conveying pipe 4 slidably connected to one of the connecting cylinders 2, the conveying pipe 4 having multiple mounting holes 401 on its outside, and a conveying pipe 5 slidably connected to the outside of the other connecting cylinder 2; it also includes:
[0025] Reinforcing component 6 is installed outside the conveying pipe 4 and reinforces the connection between the rubber ball 1 and the conveying pipe 4.
[0026] The fixing component 7 and the connecting component 8 are provided. The fixing component 7 is located inside the reinforcing component 6 and provides auxiliary support for the reinforcing component 6. The connecting component 8 is located outside the reinforcing component 6 and connects the reinforcing components 6 with each other.
[0027] Elastic component 9 is located outside the connecting component 8 and elastically pushes the connecting component 8. Rubber ball 1 serves as the core buffer component, and the connecting cylinder 2 outside it provides a connection interface for the first conveying pipe 4 and the second conveying pipe 5. The sealing ring 3 is sleeved on the outside of the connecting cylinder 2. When the first conveying pipe 4 and the second conveying pipe 5 are slidably connected to the two connecting cylinders 2 respectively, the sealing ring 3 fills the connection gap to prevent crude oil leakage in the oil pipeline and ensure the sealing of the connection.
[0028] The reinforcing component 6 includes a fixing hole 601 and an arc-shaped fixing piece 602, and the arc-shaped fixing piece 602 has multiple fixing holes 603 on its outside; the arc-shaped fixing piece 602 of the reinforcing component 6 surrounds the outside of the sealing ring 3, and its fixing holes 603 are aligned with the mounting holes 401 on the conveying pipe 4, and the fixing holes 601 are also correspondingly provided.
[0029] The fixing component 7 includes a nut 701 and a second nut 702 externally threadedly connected to the fixing component 7. The fixing component 7 is externally slidably connected to the outside of the fixing hole 601, and the nut 701 is internally threadedly connected to the outside of the fixing component 7. The fixing component 7 passes through the fixing hole 601, the mounting hole 401, and the fixing hole 603 in sequence. Tightening the nut 701 and the second nut 702 makes the arc-shaped fixing piece 602 fit tightly against the connection, enhancing the structural strength of this part and preventing the connection from loosening due to vibration.
[0030] The connecting component 8 includes a second mounting hole 801 and a rotating groove 802 on its exterior. One rotating groove 802 is rotatably connected to a first connecting rod 803, and the other rotating groove 802 is rotatably connected to a second connecting rod 804. A limiting groove 805 is formed inside the second connecting rod 804, and a connecting rod 806 is connected to the limiting groove 805 by a rotating shaft. The connecting rod 806 is fixedly connected to the exterior of the first connecting rod 803. The first connecting rod 803 and the second connecting rod 804 are rotatably connected to the two rotating grooves 802 respectively. The connecting rod 806 is connected to the limiting groove 805 of the second connecting rod 804 by a rotating shaft and is fixedly connected to the exterior of the first connecting rod 803. This connection structure disperses vibration throughout the connector, preventing vibration from concentrating at a single connection point.
[0031] The elastic component 9 includes a telescopic rod 901, and a spring 902 is sleeved on the outside of the telescopic rod 901. The spring 902 of the elastic component 9 is sleeved on the outside of the telescopic rod 901. When the connecting component 8 is vibrated and displaced, the spring 902 is compressed or stretched, and its elastic force applies a reverse force to the connecting component 8 to buffer the impact force brought by the vibration. The telescopic rod 901 restricts the deformation direction of the spring 902 to ensure that the elastic force can act accurately in the direction of offsetting the vibration, further reducing the impact of vibration on the connection part of the oil pipeline.
[0032] The working principle of this utility model is as follows: the rubber ball 1 serves as the core buffer component for vibration damping, and the connecting cylinder 2 fixedly connected to its exterior provides a basic structure for the pipeline connection. The sealing ring 3 is sleeved on the outside of the connecting cylinder 2. When the first conveying pipe 4 and the second conveying pipe 5 are slidably connected to the two connecting cylinders 2 respectively, the sealing ring 3 can effectively fill the connection gap, prevent crude oil leakage in the oil pipeline, and ensure the sealing of the connection. The reinforcing component 6 is used to reinforce the connection between the rubber ball 1 and the first conveying pipe 4. The arc-shaped fixing piece 602 surrounds the outside of the sealing ring 3, and the second fixing hole 603 opened on its exterior is aligned with the first mounting hole 401 on the first conveying pipe 4. At the same time, the first fixing hole 601 on the arc-shaped fixing piece 602 is also correspondingly set. By passing the fixing component 7 through the first fixing hole 601, the first mounting hole 401 and the second fixing hole 603 in sequence and tightening the nut, the arc-shaped fixing piece 602 is tightly fitted to the connection, which enhances the structural strength of this part and prevents the connection from loosening due to vibration.
[0033] The connecting component 8 connects the reinforcing components 6 and disperses vibration transmission. Connecting rod 1 803 and connecting rod 2 804 are rotatably connected in two rotating slots 802, respectively. Connecting rod 806 is connected to the limiting slot 805 of connecting rod 2 804 via a rotating shaft, and is fixedly connected to the outside of connecting rod 1 803. When the oil pipeline vibrates, the vibration is first transmitted to the reinforcing component 6, and then dispersed throughout the connector via the connecting structure composed of connecting rod 1 803, connecting rod 806, and connecting rod 2 804. This connection method prevents vibration from concentrating at a single connection point, but rather disperses it throughout the connecting component 8. The internal transmission and dispersion reduce the impact of vibration on the connection parts. At the same time, the telescopic rod 901 and spring 902 in the elastic component 9 provide elastic pushing for the connection component 8. The spring 902 is sleeved outside the telescopic rod 901. When the connection component 8 is displaced by vibration, the spring 902 will undergo compression or stretching deformation. The elastic force of the spring 902 will apply a reverse force to the connection component 8, buffering the impact force brought by vibration. At the same time, the telescopic rod 901 can limit the deformation direction of the spring 902, ensuring that the elastic force can be accurately applied in the direction of counteracting vibration, further reducing the impact of vibration on the connection parts of the oil pipeline.
[0034] Example 2
[0035] Please see Figure 1In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that the nuts 701 and 702 in the fixing component 7 serve as auxiliary supports for the reinforcing component 6. The screw part of the fixing component 7 passes through the fixing hole 601. The nut 701 is threaded to the outside of the screw. Tightening the nut 701 can further press the arc-shaped fixing piece 602 onto the conveying pipe 4. The nut 702 fixes the screw from the other side. Together with the nut 701, it forms a two-way fastening effect, ensuring that the reinforcing component 6 remains stable under vibration and will not displace or loosen.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0037] 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 vibration damping connector for oilfield pipelines, comprising a rubber ball, characterized in that: The rubber ball is fixedly connected to a connecting cylinder, and a sealing ring is fitted on the outside of the connecting cylinder. One of the connecting cylinders is slidably connected to a conveying pipe, and the conveying pipe has multiple mounting holes. Another connecting cylinder is slidably connected to a conveying pipe. Its characteristic is that it also includes: A reinforcement component is disposed outside the first conveying pipe to reinforce the connection between the rubber ball and the first conveying pipe. The reinforcement includes a fixing component and a connecting component. The fixing component is disposed inside the reinforcement component and provides auxiliary support for the reinforcement component. The connecting component is disposed outside the reinforcement component and connects the reinforcement components to each other. An elastic component is disposed outside the connecting component, and the connecting component is elastically pushed by the elastic component.
2. The anti-vibration connector for oilfield pipelines according to claim 1, characterized in that: The reinforcement component includes a fixing hole one and an arc-shaped fixing piece, and the arc-shaped fixing piece has multiple fixing holes two on its outer side.
3. The anti-vibration connector for oilfield pipelines according to claim 1, characterized in that: The fixing component includes a nut one, and a nut two is threadedly connected to the outside of the fixing component.
4. The anti-vibration connector for oilfield pipelines according to claim 1, characterized in that: The connecting component includes a second mounting hole, and a rotating groove is provided on the outside of the connecting component. A connecting rod is rotatably connected inside one of the rotating grooves, and a connecting rod is rotatably connected inside the other rotating groove. A limit groove is provided inside the connecting rod, and a connecting rod is connected to the rotating shaft inside the limit groove.
5. The anti-vibration connector for oilfield pipelines according to claim 1, characterized in that: The elastic component includes a telescopic rod, and a spring is sleeved on the outside of the telescopic rod.
6. The anti-vibration connector for oilfield pipelines according to claim 3, characterized in that: The fixing component is externally slidably connected to the outside of the fixing hole, and the nut is internally threadedly connected to the outside of the fixing component.
7. The anti-vibration connector for oilfield pipelines according to claim 4, characterized in that: The connecting rod is fixedly connected to the outside of the connecting rod.