Stabilized delivery rail for a marine oil supply unit
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING FENGXIANG MASCH MAINTENANCE CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional marine fuel line fixing devices lack versatility and flexibility, making it difficult to cope with complex vibrations and impacts, leading to safety hazards such as loose pipe joints and cracked welds, and lacking effective vibration reduction measures.
It adopts a stable conveyor rail with anti-slip pads and a winding rod, and achieves pipe diameter adaptability clamping through straps and gear rack mechanism. It also provides all-round vibration protection through the combination of cross brackets and dampers to reduce vibration.
It enables rapid fixing and effective vibration reduction of oil supply pipelines of different diameters, avoiding pipeline wear and joint loosening caused by vibration, and significantly improving the reliability and service life of the oil supply system.
Smart Images
Figure CN224377386U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of marine fuel supply technology, specifically a stable delivery guide rail for a marine fuel supply unit. Background Technology
[0002] As the global shipping industry moves towards higher efficiency and environmental protection, the reliability of ship fuel supply systems faces higher requirements. Modern ship power plants are becoming increasingly larger, and fuel delivery pipelines are subjected to significantly increased fluid pulsation and mechanical vibration. Traditional rigid support structures are prone to structural fatigue under long-term alternating loads. At the same time, the latest regulations of the International Maritime Organization (IMO) have put forward more stringent standards for the sealing and shock resistance of fuel systems, and existing technical solutions are no longer able to meet the design requirements of the next generation of ships.
[0003] Traditional marine fuel supply line fixing devices typically use rigid welded brackets or simple bolt clamp structures to directly fix the pipeline to the hull structure or simple metal rails. These devices are often only compatible with pipelines of a specific diameter. When changing fuel supply lines of different specifications, the entire fixing device needs to be replaced. They lack the necessary versatility and flexibility. Furthermore, existing delivery rails lack effective shock absorption measures and are unable to cope with the complex vibrations and impacts during ship navigation. Over the long term, this can easily lead to safety hazards such as loosening of pipeline joints, cracking of welds, and even fatigue fracture of the pipeline. Utility Model Content
[0004] The purpose of this invention is to provide a stable delivery guide rail for a marine fuel supply unit to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a stable conveying guide rail for a marine fuel supply unit, comprising a guide rail and a positioning seat. Two sets of symmetrically distributed anti-slip pads are fixedly bonded to the positioning seat. A winding rod is rotatably installed inside the positioning seat. A coil spring is sleeved on the winding rod. The inner and outer ends of the coil spring are fixedly connected to the winding rod and the positioning seat, respectively. A binding strap is wound around the winding rod. A plug is fixedly installed at the end of the binding strap away from the winding rod. The plug is movably engaged with the left side of the positioning seat. Two sets of inserts are slidably installed inside the positioning seat. Both sets of inserts can be movably engaged with the plug. A second rack is fixedly installed on each set of inserts. A second gear is provided between the two sets of second racks. The second gear meshes with the two sets of second racks respectively. The second gear is rotatably connected to the positioning seat through a mounting shaft. The two sets of inserts are centrally symmetrically distributed about the mounting shaft.
[0006] As a further preferred embodiment of this technical solution, a second torsion spring is sleeved on the mounting shaft, and the two ends of the second torsion spring are respectively fixedly connected to the second gear and the positioning seat. Two sets of third slide rods corresponding to the insert are fixedly installed in the positioning seat. The insert is slidably sleeved with the corresponding third slide rod. Two sets of symmetrically distributed third springs are sleeved on the third slide rod, and the two ends of the two sets of third springs are respectively fixedly connected to the insert and the positioning seat.
[0007] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed check wheels are sleeved on the winding rod, and two sets of check pawls corresponding to the check wheels are provided in the positioning seat. The two sets of check pawls are respectively engaged with the corresponding check wheels. Both sets of check pawls are rotatably connected to the positioning seat through rotating rods. A first torsion spring is sleeved on both sets of rotating rods. The two ends of the first torsion spring are respectively fixedly connected to the pawl and the positioning seat. A first gear is sleeved on both sets of rotating rods.
[0008] As a further preferred embodiment of this technical solution, a first rack corresponding to the first gear is slidably installed inside the positioning seat, and the first rack meshes with the corresponding first gear. A connecting frame is slidably installed inside the positioning seat, and the connecting frame is fixedly connected to two sets of first racks respectively. A second slide rod corresponding to the connecting frame is fixedly installed inside the positioning seat.
[0009] As a further preferred embodiment of this technical solution, the connecting frame is slidably sleeved with the second slide rod, and two sets of symmetrically distributed second springs are sleeved on the second slide rod, with the two ends of the second springs being fixedly connected to the connecting frame and the positioning seat, respectively.
[0010] As a further preferred embodiment of this technical solution, two sets of cross-distributed brackets are provided between the positioning seat and the guide rail. Sliders are rotatably installed at both ends of the two sets of brackets. The sliders are slidably connected to the corresponding positioning seat or guide rail. A damper is fixedly installed between the slider and the positioning seat or guide rail. A fourth spring is fitted on each damper. A first sliding rod is fixedly installed inside the guide rail and the positioning seat.
[0011] As a further preferred embodiment of this technical solution, the slider is slidably sleeved with the first slide rod, and two sets of symmetrically distributed first springs are sleeved on the first slide rod. The two ends of the two sets of first springs are respectively fixedly connected to the slider and the positioning seat or guide rail.
[0012] This utility model provides a stable delivery guide rail for a marine fuel supply unit, which has the following advantages:
[0013] (1) This utility model pulls the connecting frame, which drives the two sets of first racks to move synchronously. The first gear drives the rotating rod to rotate, which forces the check pawl to disengage from the check wheel. At this time, the winding rod is unlocked and can rotate freely. The insert at the end of the strap cooperates with the two sets of symmetrically distributed inserts in the positioning seat. The second gear and the second rack linkage mechanism ensure that the inserts on both sides move synchronously, realizing the rapid clamping of oil supply pipelines of different diameters. After the pipeline is fixed, the connecting frame is released. Under the reset action of the second spring and the first torsion spring, the check pawl immediately re-engages with the check wheel to form a two-way mechanical lock, ensuring that the strap maintains constant tension. Compared with the traditional bolt fixing method, the efficiency is effectively improved.
[0014] (2) This utility model provides all-round vibration protection for the oil supply pipeline through the synergistic effect of the cross-distributed bracket, slider, first slide rod, first spring, damper and fourth spring. When the slider at both ends of the bracket slides along the first slide rod, the first spring provides initial buffering, while the combination of the damper and the fourth spring effectively dissipates the low-frequency vibration and high-frequency impact energy generated during ship navigation, avoiding pipeline wear, joint loosening and weld cracking caused by long-term vibration, and significantly improving the reliability and service life of the oil supply system. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram showing the separation of the guide rail and positioning seat of this utility model;
[0017] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A;
[0018] Figure 4 This is a schematic diagram showing the separation of the positioning seat and the strap in this utility model;
[0019] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point -B;
[0020] Figure 6 For the present utility model Figure 4 Enlarged view of the structure at point C;
[0021] In the diagram: 1. Guide rail; 2. Positioning seat; 3. Anti-slip pad; 4. Bracket; 5. Slider; 6. First slide rod; 7. First spring; 8. Damper; 9. Fourth spring; 10. Rewinding rod; 11. Coil spring; 12. Check wheel; 13. Check pawl; 14. Rotating rod; 15. First torsion spring; 16. First gear; 17. First rack; 18. Connecting frame; 19. Second slide rod; 20. Second spring; 21. Strap; 22. Insert block; 23. Insert bracket; 24. Second rack; 25. Second gear; 26. Mounting shaft; 27. Second torsion spring; 28. Third slide rod; 29. Third spring. Detailed Implementation
[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0023] This utility model provides a technical solution: such as Figures 1-6As shown, in this embodiment, a stable delivery guide rail for a marine fuel supply unit includes a guide rail 1 and a positioning seat 2. Two sets of symmetrically distributed anti-slip pads 3 are fixedly bonded to the positioning seat 2. A winding rod 10 is rotatably installed inside the positioning seat 2. A coil spring 11 is sleeved on the winding rod 10. The inner and outer ends of the coil spring 11 are fixedly connected to the winding rod 10 and the positioning seat 2, respectively. A binding strap 21 is wound around the winding rod 10. An insert block 22 is fixedly installed at the end of the binding strap 21 away from the winding rod 10. The insert block 22 is movably engaged with the left side of the positioning seat 2. Two sets of insert brackets 23 are slidably installed inside the positioning seat 2. Both sets of insert brackets 23 can be movably engaged with the insert block 22. A second rack 24 is fixedly installed on each set of insert brackets 23. A second rack is provided between the two sets of second racks 24. The second gear 25 of gear 25 meshes with two sets of second racks 24 respectively. The second gear 25 is rotatably connected to the positioning seat 2 via the mounting shaft 26. The two sets of inserts 23 are centrally symmetrically distributed about the mounting shaft 26. A second torsion spring 27 is sleeved on the mounting shaft 26. The two ends of the second torsion spring 27 are fixedly connected to the second gear 25 and the positioning seat 2 respectively. Two sets of third slide rods 28 corresponding to the inserts 23 are fixedly installed in the positioning seat 2. The inserts 23 are slidably sleeved with the corresponding third slide rods 28. Two sets of symmetrically distributed third springs 29 are sleeved on the third slide rods 28. The two ends of the two sets of third springs 29 are fixedly connected to the inserts 23 and the positioning seat 2 respectively. Two sets of symmetrically distributed check wheels 12 are sleeved on the winding rod 10. The positioning seat 2 is equipped with two sets of check pawls 13 corresponding to the check wheels 12. Each set of check pawls 13 is engaged with its corresponding check wheel 12. Both sets of check pawls 13 are rotatably connected to the positioning seat 2 via rotating rods 14. Each set of rotating rods 14 is fitted with a first torsion spring 15, the two ends of which are fixedly connected to the pawl and the positioning seat 2, respectively. Each set of rotating rods 14 is fitted with a first gear 16. A first rack 17 corresponding to the first gear 16 is slidably installed inside the positioning seat 2, engaging with its corresponding first gear 16. A connecting frame 18 is slidably installed inside the positioning seat 2, fixedly connected to both sets of first racks 17. A corresponding connecting frame 18 is also fixedly installed inside the positioning seat 2. The second slide rod 19 is slidably sleeved with the connecting frame 18. Two sets of symmetrically distributed second springs 20 are sleeved on the second slide rod 19. The two ends of the second springs 20 are fixedly connected to the connecting frame 18 and the positioning seat 2, respectively. During operation, the connecting frame 18 is manually pulled upward, which drives the two sets of first racks 17 to move synchronously, driving the corresponding first gear 16 to rotate, so that the rotating rod 14 drives the anti-return pawl 13 to disengage from the anti-return wheel 12. At this time, the winding rod 10 is in a free rotation state. Then, the binding strap 21 is pulled out and wrapped around the pipeline. The pipeline is fixed between the positioning seat 2 and the binding strap 21. The mounting shaft 26 is rotated to cooperate with the second gear 25 and the second rack 24 to make the two sets of insert brackets 23 move outward synchronously, inserting the insert block 22 into the left slot of the positioning seat 2.After the mounting shaft 26 is released, under the action of the second torsion spring 27 and the third spring 29, the two sets of insert brackets 23 slide inward synchronously and engage with the insert block 22, thus fixing the position of the insert block 22. After the winding rod 10 is released, under the action of the coil spring 11, the winding rod 10 automatically tightens the binding strap 21. Then, the connecting frame 18 is released. Under the action of the second spring 20 and the first torsion spring 15, the check pawl 13 re-engages the check wheel 12, completing the bidirectional mechanical locking of the winding rod 10. The entire process can be completed in a short time.
[0024] like Figure 2 and Figure 3 As shown, two sets of cross-distributed brackets 4 are provided between the positioning seat 2 and the guide rail 1. Slider 5 is rotatably mounted at both ends of each set of brackets 4. The slider 5 is slidably connected to the corresponding positioning seat 2 or guide rail 1. A damper 8 is fixedly installed between the slider 5 and the positioning seat 2 or guide rail 1. A fourth spring 9 is fitted onto each damper 8. A first sliding rod 6 is fixedly installed inside both the guide rail 1 and the positioning seat 2. The slider 5 is slidably connected to the first sliding rod 6. Two sets of symmetrically distributed first springs 7 are fitted onto the first sliding rod 6. The two ends of the two sets of first springs 7 are fixedly connected to the slider 5 and the positioning seat 2 or guide rail 1, respectively. The two sets of cross-distributed brackets 4 between the positioning seat 2 and the guide rail 1... The forked support 4, through the end slider 5 and the first slide rod 6, forms a bidirectional sliding support structure. When the pipeline is subjected to vibration and impact, the support 4 generates relative displacement, causing the slider 5 to slide along the first slide rod 6 and compress the first spring 7, providing initial buffering. At the same time, the damper 8 installed between the slider 5 and the base starts to work, forming a composite damping mechanism with the fourth spring 9, which effectively absorbs vibration energy of different frequencies. This structure can adaptively decompose vibrations in the lateral, longitudinal and vertical directions, avoiding pipeline wear, joint loosening and weld cracking caused by long-term vibration, and significantly improving the reliability and service life of the oil supply system.
[0025] This utility model provides a stable conveying guide rail for a marine fuel supply unit. The specific working principle is as follows: During operation, the connecting frame 18 is manually pulled upwards, causing the two sets of first racks 17 to move synchronously, driving the corresponding first gear 16 to rotate. This causes the rotating rod 14 to disengage the check pawl 13 from the check wheel 12. At this time, the winding rod 10 is in a free-rotating state. Then, the binding strap 21 is pulled out and wound around the pipeline, fixing the pipeline between the positioning seat 2 and the binding strap 21. Rotating the mounting shaft 26, in conjunction with the second gear 25 and the second rack 24, causes the two sets of insert brackets 23 to move outwards synchronously, inserting the insert block 22 into the left slot of the positioning seat 2. After releasing the mounting shaft 26, under the action of the second torsion spring 27 and the third spring 29, the two sets of insert brackets 23 slide inwards synchronously and engage with the insert block 22, completing the position fixation of the insert block 22. After releasing the winding rod 10, under the action of the coil spring 11, the winding rod 10 automatically tightens the binding strap 21, and then releases... The connecting bracket 18 is placed, and under the action of the second spring 20 and the first torsion spring 15, the check pawl 13 re-engages the check wheel 12, completing the bidirectional mechanical locking of the winding rod 10. The entire process can be completed in a short time. The two sets of cross-distributed brackets 4 between the positioning seat 2 and the guide rail 1 cooperate with the first slide rod 6 through the end slider 5 to form a bidirectional sliding support structure. When the pipeline is subjected to vibration and impact, the bracket 4 generates relative displacement, causing the slider 5 to slide along the first slide rod 6 and compress the first spring 7, providing initial buffering. At the same time, the damper 8 installed between the slider 5 and the base starts to work, and cooperates with the fourth spring 9 to form a composite shock absorption mechanism, effectively absorbing vibration energy of different frequencies. This structure can adaptively decompose vibrations in the transverse, longitudinal and vertical directions, avoiding pipeline wear, joint loosening and weld cracking caused by long-term vibration, and significantly improving the reliability and service life of the oil supply system.
[0026] 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 stable delivery guide rail for a marine oil supply unit, comprising a guide rail (1) and a positioning seat (2), characterized in that: Two sets of symmetrically distributed anti-slip pads (3) are fixedly bonded to the positioning seat (2). A winding rod (10) is rotatably installed inside the positioning seat (2). A coil spring (11) is sleeved on the winding rod (10). The inner and outer ends of the coil spring (11) are fixedly connected to the winding rod (10) and the positioning seat (2) respectively. A strap (21) is wound around the winding rod (10). A plug (22) is fixedly installed at the end of the strap (21) away from the winding rod (10). The plug (22) is movably engaged with the left side of the positioning seat (2). Two sets of inserts (23) are slidably installed inside the positioning seat (2). Both sets of inserts (23) can be movably engaged with the insert block (22). A second rack (24) is fixedly installed on each set of inserts (23). A second gear (25) is provided between the two sets of second racks (24). The second gear (25) meshes with the two sets of second racks (24) respectively. The second gear (25) is rotatably connected to the positioning seat (2) through the mounting shaft (26). The two sets of inserts (23) are centrally symmetrical about the mounting shaft (26).
2. A stabilised delivery guide rail for a marine fuel delivery unit according to claim 1, characterised in that: A second torsion spring (27) is sleeved on the mounting shaft (26). The two ends of the second torsion spring (27) are fixedly connected to the second gear (25) and the positioning seat (2), respectively. Two sets of third slide rods (28) corresponding to the insert (23) are fixedly installed in the positioning seat (2). The insert (23) is slidably sleeved with the corresponding third slide rod (28). Two sets of symmetrically distributed third springs (29) are sleeved on the third slide rod (28). The two ends of the two sets of third springs (29) are fixedly connected to the insert (23) and the positioning seat (2), respectively.
3. A stabilizing guide rail for a marine fuel delivery unit as defined in claim 1, wherein: Two sets of symmetrically distributed check wheels (12) are sleeved on the winding rod (10). Two sets of check pawls (13) corresponding to the check wheels (12) are provided in the positioning seat (2). The two sets of check pawls (13) are respectively engaged with the corresponding check wheels (12). The two sets of check pawls (13) are rotatably connected to the positioning seat (2) through rotating rods (14). A first torsion spring (15) is sleeved on the two sets of rotating rods (14). The two ends of the first torsion spring (15) are respectively fixedly connected to the pawl and the positioning seat (2). A first gear (16) is sleeved on the two sets of rotating rods (14).
4. A stabilizing guide rail for a marine fuel delivery unit as defined in claim 1, wherein: The positioning seat (2) is slidably installed with a first rack (17) corresponding to the first gear (16). The first rack (17) meshes with the corresponding first gear (16). The positioning seat (2) is slidably installed with a connecting frame (18). The connecting frame (18) is fixedly connected to two sets of first racks (17) respectively. The positioning seat (2) is fixedly installed with a second slide rod (19) corresponding to the connecting frame (18).
5. A stable delivery guide rail for a marine fuel supply unit according to claim 4, characterized in that: The connecting frame (18) is slidably sleeved with the second slide rod (19). Two sets of symmetrically distributed second springs (20) are sleeved on the second slide rod (19). The two ends of the second springs (20) are fixedly connected to the connecting frame (18) and the positioning seat (2), respectively.
6. A stable delivery guide rail for a marine fuel delivery unit according to claim 1, wherein: Two sets of cross-distributed brackets (4) are provided between the positioning seat (2) and the guide rail (1). Slider (5) is rotatably installed at both ends of the two sets of brackets (4). The slider (5) is slidably connected to the corresponding positioning seat (2) or guide rail (1). A damper (8) is fixedly installed between the slider (5) and the positioning seat (2) or guide rail (1). A fourth spring (9) is fitted on the damper (8). A first slide rod (6) is fixedly installed in both the guide rail (1) and the positioning seat (2).
7. A stabilised delivery guide rail for a marine fuel delivery unit according to claim 6, characterised in that: The slider (5) is slidably sleeved with the first slide rod (6). Two sets of symmetrically distributed first springs (7) are sleeved on the first slide rod (6). The two ends of the two sets of first springs (7) are respectively fixedly connected to the slider (5) and the positioning seat (2) or the guide rail (1).