Corrosion-resistant marine fastener
By introducing a combination design of anti-loosening brackets and sealing rings into marine fasteners, the problem of fastener loosening under seawater corrosion and vibration environments is solved, thereby improving the stability and sealing performance of the fasteners.
Patent Information
- Application Number
- CN202520611346.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-02
AI Technical Summary
Existing marine fasteners are susceptible to seawater corrosion under complex working conditions and lack effective sealing, leading to fastener loosening and affecting the stability and safety of the equipment.
The fastener employs a combination design of fastening bolts, anti-loosening brackets, springs, anti-corrosion sleeves, and sealing rings. The springs maintain the fastener in a secure state, while the anti-corrosion sleeves and sealing rings prevent seawater penetration, thus enhancing the fastener's anti-loosening and sealing performance.
It effectively prevents seawater penetration, maintains stable fastener tightening force, and improves the operational reliability and safety of the equipment.
Smart Images
Figure CN223894717U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of shipbuilding, concretely is a kind of corrosion-resistant marine fastener. BACKGROUND
[0002] Marine fastener is the key component to ensure the structural integrity of ship and normal operation of equipment, for connecting ship structure, equipment, pipeline and other parts, if fastener corrosion failure occurs, it may lead to loose connection, component shedding, affect the safety and reliability of ship, and even cause serious accident, so a kind of corrosion-resistant marine fastener is needed.
[0003] The existing marine fastener needs to be connected by fastener parts when operating, which is often in complex working conditions, and seawater corrosion is the most common and intractable problem, but the fastener is inconvenient to effectively seal the parts fastened during design or actual application process, when ship is sailing, seawater will continuously impact various parts of ship body, for those parts connected by such fastener, due to lack of good sealing measures, seawater can easily penetrate into the connecting parts of fastener and parts, ship will continue to be affected by various external forces such as sea waves and sea winds during sailing, and ship body is in vibration state all the time. In this dynamic environment, the fastening and anti-loosening performance of fastener is required to be very high. Under the long-term vibration effect, fastener is prone to loosening, which leads to the problem of the decrease of fastening force on parts. UTILITY MODEL CONTENT
[0004] Therefore, the utility model aims at providing a kind of corrosion-resistant marine fastener to solve the problem that the existing corrosion-resistant marine fastener needs to be connected by fastener parts when using, which is often in complex working conditions, and seawater corrosion is the most common and intractable problem. But the fastener is inconvenient to effectively seal the parts fastened during design or actual application process. When ship is sailing, seawater will continuously impact various parts of ship body, for those parts connected by such fastener, due to lack of good sealing measures, seawater can easily penetrate into the connecting parts of fastener and parts, ship will continue to be affected by various external forces such as sea waves and sea winds during sailing, and ship body is in vibration state all the time. In this dynamic environment, the fastening and anti-loosening performance of fastener is required to be very high. Under the long-term vibration effect, fastener is prone to loosening, which leads to the problem of the decrease of fastening force on parts.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of corrosion-resistant marine fastener, including fastening bolt, the outer wall of the fastening bolt is equipped with anti-loosening frame, and the side of the anti-loosening frame is in contact with spring.
[0006] The outer wall of the fastening bolt is fixedly connected with a first anticorrosion sleeve, one end of the first anticorrosion sleeve is attached with a first sealing ring, the outer wall of the fastening bolt is fixedly connected with a fastening sleeve, the outer wall of the fastening sleeve is fixedly connected with a second anticorrosion sleeve, and one end of the second anticorrosion sleeve is attached with a second sealing ring.
[0007] Preferably, the fastening bolt is movably connected with the anti-loose frame, and the inner wall of the fastening bolt is designed as a perforated type.
[0008] Preferably, the fastening bolt is arranged in parallel with the spring, and the outer wall of the fastening bolt is designed as a hexagonal structure.
[0009] Preferably, the fastening bolt is threadedly connected with the first anticorrosion sleeve, and the inner wall of the first anticorrosion sleeve is designed as a threaded type.
[0010] Preferably, the inner wall of the first anticorrosion sleeve is tightly attached with the outer wall of the first sealing ring, and the diameter of the inner wall of the first anticorrosion sleeve is greater than the diameter of the outer wall of the first sealing ring.
[0011] Preferably, the fastening sleeve is threadedly connected with the fastening bolt, and the outer wall of the fastening sleeve is designed as a hexagonal structure.
[0012] Preferably, the inner wall of the second anticorrosion sleeve is tightly attached with the outer wall of the second sealing ring, and the diameter of the inner wall of the second anticorrosion sleeve is greater than the diameter of the outer wall of the second sealing ring.
[0013] Compared with the prior art, the utility model has the advantages that:
[0014] 1. The fastening bolt is movably connected with the anti-loose frame, and the inner wall of the fastening bolt is designed as a perforated type.
[0015] 2. The fastening bolt is threadedly connected with the first anticorrosion sleeve, and the inner wall of the first anticorrosion sleeve is designed as a threaded type. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a front view of the utility model;
[0017] Figure 2 It is a structure schematic view of the rear view of the utility model;
[0018] Figure 3 is a structure schematic diagram of the utility model in the vertical view;
[0019] Figure 4 is a structure schematic diagram of the utility model in the vertical view.
[0020] In the figure: 1, fastening bolt; 2, anti-loosening frame; 3, spring; 4, first anticorrosion sleeve; 5, first sealing ring; 6, fastening sleeve; 7, second anticorrosion sleeve; 8, second sealing ring. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are used only for explaining the utility model and cannot be understood as limiting the utility model.
[0022] The embodiments of the utility model will be described below according to the overall structure of the utility model.
[0023] Please refer to Figures 1-4 A kind of corrosion-resistant marine fastener, including fastening bolt 1, the outer wall of fastening bolt 1 is equipped with anti-loosening frame 2, fastening bolt 1 is movably connected with anti-loosening frame 2, and the inner wall of fastening bolt 1 is designed as aperture type, spring 3 is abutted on one side of anti-loosening frame 2, fastening bolt 1 is arranged in parallel with spring 3, and the outer wall of fastening bolt 1 is arranged as hexagonal structure, fastening bolt 1 is set to play the active role to anti-loosening frame 2 by being set, when using device, fastening bolt 1 is extruded to anti-loosening frame 2 after fastening, so that fastening bolt 1 keeps fastening state, ensure the fastening force stability to part, once fastener keeps fastening, the relative position between the parts being fastened can keep stable, guarantee the normal operation of equipment.
[0024] Please refer to Figures 1-4A corrosion-resistant marine fastener comprises a fastener 1 with a first anti-corrosion sleeve 4 fixedly connected to its outer wall. The fastener 1 and the first anti-corrosion sleeve 4 are threaded together, and the inner wall of the first anti-corrosion sleeve 4 is threaded. A first sealing ring 5 is attached to one end of the first anti-corrosion sleeve 4, and the inner wall of the first anti-corrosion sleeve 4 is tightly fitted to the outer wall of the first sealing ring 5. The inner diameter of the first anti-corrosion sleeve 4 is larger than the outer diameter of the first sealing ring 5. A fastener 6 is fixedly connected to the outer wall of the fastener 1 with a threaded connection. The outer wall of the fastener 6 is hexagonal. A second anti-corrosion sleeve 7 is fixedly connected to the outer wall of the fastener 6. One end of the anti-corrosion sleeve 7 is fitted with a second sealing ring 8. The inner wall of the second anti-corrosion sleeve 7 is tightly fitted with the outer wall of the second sealing ring 8, and the inner diameter of the second anti-corrosion sleeve 7 is larger than the outer diameter of the second sealing ring 8. The first anti-corrosion sleeve 4 is threadedly fixed by the fastening bolt 1. When the device is in use, the first anti-corrosion sleeve 4 and the second anti-corrosion sleeve 7 wrap around the fastening bolt 1 and the fastening sleeve 6. When the first anti-corrosion sleeve 4 and the second anti-corrosion sleeve 7 are tightened, the first sealing ring 5 and the second sealing ring 8 are stretched under force, so that the fastening bolt 1 and the fastening sleeve 6 are in a sealed space, which can effectively prevent seawater penetration and increase the practicality of the device.
[0025] Working principle: In use, take out the device and place it in the designated position. Then, pass the fastening bolt 1 through the spring 3, and lock the anti-loosening bracket 2 onto the fastening bolt 1. Then, pass the fastening bolt 1 through the position to be fastened, and then thread the fastening sleeve 6 onto the fastening bolt 1. Press the anti-loosening bracket 2 against the spring 3. Finally, attach and fix the first anti-corrosion sleeve 4 onto the first sealing ring 5, and then attach and fix the second anti-corrosion sleeve 7 onto the second sealing ring 8. Then, thread the first anti-corrosion sleeve 4 onto the fastening bolt 1, and then thread the second anti-corrosion sleeve 7 onto the fastening sleeve 6. The first anti-corrosion sleeve 4 and the second anti-corrosion sleeve 7 seal and protect the fastening bolt 1 and the fastening sleeve 6. This completes the use of the device. The contents not described in detail in this manual are existing technologies known to those skilled in the art.
[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A corrosion-resistant marine fastener, comprising a fastening bolt (1), characterized in that: The outer wall of the fastener (1) is fitted with an anti-loosening bracket (2), and one side of the anti-loosening bracket (2) is in contact with a spring (3); The outer wall of the fastening bolt (1) is fixedly connected to a first anti-corrosion sleeve (4), and a first sealing ring (5) is attached to one end of the first anti-corrosion sleeve (4). The outer wall of the fastening bolt (1) is fixedly connected to a fastening sleeve (6), and the outer wall of the fastening sleeve (6) is fixedly connected to a second anti-corrosion sleeve (7), and a second sealing ring (8) is attached to one end of the second anti-corrosion sleeve (7).
2. The corrosion-resistant marine fastener according to claim 1, characterized in that: The fastening bolt (1) is movably connected to the anti-loosening bracket (2), and the inner wall of the fastening bolt (1) is designed with an opening.
3. The corrosion-resistant marine fastener according to claim 1, characterized in that: The fastening bolt (1) is arranged parallel to the spring (3), and the outer wall of the fastening bolt (1) is hexagonal.
4. A corrosion-resistant marine fastener according to claim 1, characterized in that: The fastening bolt (1) is threadedly connected to the first anti-corrosion sleeve (4), and the inner wall of the first anti-corrosion sleeve (4) is threaded.
5. A corrosion-resistant marine fastener according to claim 1, characterized in that: The inner wall of the first anti-corrosion sleeve (4) is tightly fitted with the outer wall of the first sealing ring (5), and the inner diameter of the first anti-corrosion sleeve (4) is larger than the outer diameter of the first sealing ring (5).
6. A corrosion-resistant marine fastener according to claim 1, characterized in that: The fastening sleeve (6) is threadedly connected to the fastening bolt (1), and the outer wall of the fastening sleeve (6) is hexagonal.
7. A corrosion-resistant marine fastener according to claim 1, characterized in that: The inner wall of the second anti-corrosion sleeve (7) is tightly fitted with the outer wall of the second sealing ring (8), and the inner diameter of the second anti-corrosion sleeve (7) is larger than the outer diameter of the second sealing ring (8).