High strength fastener for marine applications

Abstract

The utility model relates to fastener technical field discloses a kind of high-strength fastener for warship, including fastener nut, oil injection device is arranged in the fastener nut, stable device is arranged between the oil injection device and fastener nut, the oil injection device includes pressing column, the lower end of the pressing column is fixedly connected with connecting column, the inside of the fastener nut is fixedly sleeved with sleeve at middle part, oil storage cotton is arranged in the sleeve.In the utility model, oil injection device extrudes lubricating oil by connecting column pressing oil storage cotton, and lubricating fastener nut is transported to oil outlet by water pipe, can avoid that nut is worn due to long-term extrusion friction, prevent potential accident caused by not expected fastening effect, and at the same time, stable device is driven to move down by pressing column with the help of clamping block, clamping block is inwards retracted when contacting nut, to the clamping groove mouth is reset buckle fixed by spring elastic force, can prevent pressing column from moving out the outside of nut due to oil storage cotton self elastic force, guarantee oil injection device stable work.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to a high-strength fastener for ships. Background Technology

[0002] Fasteners are mechanical parts used to connect, fix, or reinforce two or more objects, and are widely used in industries such as construction, machinery, electronics, and automobiles. Common types of fasteners include bolts, screws, fastener nuts, washers, and rivets. Larger facilities, such as ships, also require larger fasteners to install certain components.

[0003] A search revealed an existing patent (publication number: CN218760829U) disclosing a high-strength fastener, comprising a fastener body, a nut, a slot on the top of the nut, a reinforcing liner on the inner sidewall of the slot, and a reinforcing rib connected to the outer side of the nut. A stud is connected to the center of the bottom of the nut, and a reinforcing component is provided at the bottom of the nut to effectively improve strength. A fastener nut is provided on the outer side of the stud, and a washer is provided on the outer side of the stud and on top of the fastener nut. Although this patent can greatly improve the strength of the fastener by setting the reinforcing component, thereby effectively improving the service life of the fastener to a certain extent, there is a problem that when large fasteners are used, they are prone to wear due to mutual friction between the fastener bodies after long-term use, which may cause the fastening effect to fail to meet the expected requirements, posing a potential risk and causing accidents.

[0004] Therefore, those skilled in the art have provided a high-strength fastener for ships to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a high-strength fastener for ships. The oil injection device uses a connecting column to press down on the oil storage cotton to squeeze out lubricating oil, which is then transported through a water pipe to the oil outlet to lubricate the fastener nut. This avoids wear on the nut due to long-term compression and friction, preventing potential accidents caused by insufficient fastening effect. At the same time, the stabilizing device uses a pressing column to drive the locking block downward. When the locking block contacts the nut, it retracts inward and is reset and fixed at the locking groove by the spring force. This prevents the pressing column from moving out of the nut due to the elasticity of the oil storage cotton itself, ensuring the stable operation of the oil injection device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A high-strength ship fastener includes a fastener nut, wherein an oil injection device is provided inside the fastener nut, and a stabilizing device is provided between the oil injection device and the fastener nut. The oil injection device includes a pressing column, the lower end of which is fixedly connected to a connecting column. A sleeve is fixedly fitted inside the middle part of the fastener nut, and oil storage cotton is provided inside the sleeve. Connecting plates are fixedly fitted on the front and rear ends and both sides of the fastener nut. A water pipe is fixedly connected between the connecting plates and the sleeve. A plurality of oil outlets are opened on the front end face of the plurality of connecting plates. Through the above technical solution, by pressing down the pressing column, the connecting column moves down in the sleeve and squeezes the oil storage cotton, so that the lubricating oil in the oil storage cotton is squeezed out and transported to the hollow connecting plate through the water pipe, and finally flows out from multiple oil outlets, thereby lubricating the fastener nut and reducing friction and wear during its use.

[0007] Furthermore, the stabilizing device includes a square groove, which is opened on one side of the pressing column. A small square block is fixedly connected to the middle of the inner wall of one side of the square groove. Springs are fixedly connected to the front and rear ends of the small square block. A locking block is fixedly connected to the opposite ends of the two springs. A locking slot is opened on the upper part of the inner wall of the front and rear ends of the fastener nut. The locking block is engaged in the locking slot. With the above technical solution, when the pressing column moves down, the locking block compresses the spring and contracts due to contact with the inner wall of the fastener nut. When it moves to the position of the locking slot, the spring resets and pushes the locking block into the locking slot, thereby firmly limiting the pressing column and preventing it from popping out due to the elasticity of the oil storage cotton.

[0008] Furthermore, the fastener nut is made of TC4 material; Through the above technical solution, fastener nuts made of TC4 titanium alloy material, taking advantage of their high strength, excellent seawater corrosion resistance and lightweight characteristics, significantly improve the load-bearing capacity and service life of fasteners in the complex environment of ships, and adapt to the harsh working conditions of high salt spray and high humidity in the ocean.

[0009] Furthermore, the connecting post is movably sleeved within the sleeve; The above technical solution, through the movable sleeve of the connecting column inside the sleeve, not only ensures that the connecting column can move smoothly up and down to squeeze the oil storage cotton, but also limits the movement trajectory of the connecting column through the sleeve, ensuring that the oil injection action is stable and reliable.

[0010] Furthermore, the connecting plate is hollow; The above technical solution provides a space for temporary storage and distribution of lubricating oil through the hollow design of the connecting plate, allowing the lubricating oil delivered from the water pipe to be evenly distributed to multiple oil outlets, ensuring the comprehensiveness of the lubrication range and the uniformity of the lubrication effect.

[0011] Furthermore, the front end face of the card block is arranged in a ring shape, and the front end face of the card block is fitted against the inner wall of the fastener nut when the spring is compressed; The above technical solution uses an annular arrangement on the front end of the locking block to make it contact the inner wall of the fastener nut, which facilitates the smooth downward movement of the pressing column. When the spring is compressed, the locking block fits against the inner wall, which ensures that the locking block can be accurately positioned at the slot, thus guaranteeing the reliability of the locking structure.

[0012] Furthermore, a washer is movably sleeved on the fastener nut; The above technical solution increases the contact area between the fastener nut and the connecting parts by using the shims, which disperses pressure, prevents damage to the connecting surface when the nut is tightened, enhances the anti-loosening effect of the fastener, and improves the stability of the connection.

[0013] This utility model has the following beneficial effects: 1. The present invention proposes a high-strength ship fastener. Through the setting of an oil injection device, the connecting column moves downward to contact the oil storage cotton, which is compressed to produce lubricating oil. The produced lubricating oil flows into the oil outlet through the water pipe, lubricating the fastener nut. This avoids the fastener nut from wearing due to compression and friction after long-term use, which would prevent the fastening effect from failing to meet the expected requirements and pose a potential risk, thus avoiding accidents.

[0014] 2. The present invention proposes a high-strength ship fastener. Through the setting of a stabilizing device, the pressing column moves downward, which drives the locking block to move downward. The locking block contacts the fastener nut and retracts inward. When it moves to the locking slot, the spring resets by its own elasticity, thereby locking the locking block into the locking slot and preventing the pressing column from moving to the outside of the fastener nut by the elasticity of the oil-retaining cotton.

[0015] 3. The present invention proposes a high-strength ship fastener. The oil injection device squeezes out lubricating oil by pressing down the oil storage cotton on the connecting column, and delivers it to the oil outlet through the water pipe to lubricate the fastener nut. This can avoid wear of the nut due to long-term compression and friction, and prevent potential accidents caused by unsatisfactory fastening effect. At the same time, the stabilizing device uses the pressing column to drive the locking block to move down. When the locking block contacts the nut, it retracts inward and is reset and fixed by the spring force at the locking groove. This can prevent the pressing column from moving out of the nut due to the elasticity of the oil storage cotton itself, and ensure the stable operation of the oil injection device. Attached Figure Description

[0016] Figure 1 This is an axonometric schematic diagram of a high-strength ship fastener proposed in this utility model; Figure 2 This is a half-sectional axonometric schematic diagram of a high-strength ship fastener proposed in this utility model. Figure 3 for Figure 2 An enlarged schematic diagram of the structure at point A; Figure 4 This is a semi-sectional axonometric schematic diagram of the oil-storage cotton in a high-strength ship fastener proposed in this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Fastener nut; 2. Washer; 3. Oil injection device; 31. Pressing column; 32. Connecting column; 33. Sleeve; 34. Oil reservoir cotton; 35. Water pipe; 36. Connecting plate; 37. Oil outlet; 4. Stabilizing device; 41. Square groove; 42. Small square block; 43. Locking block; 44. Spring; 45. Locking groove. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a specific embodiment: a high-strength ship fastener, including a fastener nut 1, an oil injection device 3 inside the fastener nut 1, and a stabilizing device 4 between the oil injection device 3 and the fastener nut 1. The fastener nut 1 is made of TC4 material. By using the fastener nut 1 made of TC4 titanium alloy material, its high strength, excellent seawater corrosion resistance and lightweight characteristics significantly improve the load-bearing capacity and service life of the fastener in the complex environment of the ship, and adapt to the harsh working conditions of high salt spray and high humidity in the ocean. A washer 2 is movably sleeved on the fastener nut 1. The washer 2 can increase the contact area between the fastener nut 1 and the connecting parts, disperse pressure, prevent damage to the connecting surface when the nut is tightened, and at the same time enhance the anti-loosening effect of the fastener and improve the stability of the connection. The oil injection device 3 includes a pressing column 31, with a connecting column 32 fixedly connected to the lower end of the pressing column 31. A sleeve 33 is fixedly fitted inside the fastener nut 1 near the center, and an oil storage cotton 34 is provided inside the sleeve 33. Connecting plates 36 are fixedly fitted on the front, rear, and sides of the fastener nut 1. Water pipes 35 are fixedly connected between the multiple connecting plates 36 and the sleeve 33. Multiple oil outlets 37 are opened on the front face of the multiple connecting plates 36. By pressing down the pressing column 31, the connecting column 32 moves down inside the sleeve 33 and squeezes the oil storage cotton 34, causing the lubricating oil in the oil storage cotton 34 to be squeezed out and transported through the water pipe 35 to the hollow connecting plate 36, and finally from the multiple outlets. Oil flows out from port 37 to lubricate the fastener nut 1, reducing friction and wear during use. The connecting column 32 is movably sleeved in the sleeve 33. The movable sleeve of the connecting column 32 in the sleeve 33 ensures that the connecting column 32 can move smoothly up and down to squeeze the oil storage cotton 34. At the same time, the sleeve 33 limits the movement trajectory of the connecting column 32 to ensure that the oil injection action is stable and reliable. The connecting plate 36 is hollow. The hollow setting of the connecting plate 36 provides a temporary storage and distribution space for lubricating oil, so that the lubricating oil delivered from the water pipe 35 can be evenly distributed to multiple oil outlets 37, ensuring the comprehensiveness of the lubrication range and the uniformity of the lubrication effect. Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The stabilizing device 4 includes a square groove 41, which is located on one side of the pressing post 31. A small square block 42 is fixedly connected to the middle of the inner wall of one side of the square groove 41. Springs 44 are fixedly connected to the front and rear ends of the small square block 42. A locking block 43 is fixedly connected to the opposite ends of the two springs 44. The upper part of the inner wall of the front and rear ends of the fastener nut 1 is provided with a locking slot 45. The locking block 43 is engaged in the locking slot 45. When the pressing post 31 moves down, the locking block 43 compresses the spring 44 and retracts due to contact with the inner wall of the fastener nut 1. When it moves to the position of the locking slot 45, When the spring 44 returns to its original position, it pushes the locking block 43 into the slot 45, thereby firmly limiting the pressing post 31 and preventing it from popping out due to the elasticity of the oil-retaining cotton 34. The front end face of the locking block 43 is arranged in a ring shape. When the spring 44 is compressed, the front end face of the locking block 43 is in contact with the inner wall of the fastener nut 1. The ring shape of the front end face of the locking block 43 makes it contact with the inner wall of the fastener nut 1, which facilitates the smooth downward movement of the pressing post 31. The contact between the locking block 43 and the inner wall when the spring 44 is compressed ensures that the locking block 43 can be accurately positioned at the slot 45, ensuring the reliability of the locking structure.

[0020] Working principle: When in use, pressing down on the pressing column 31 causes the connecting column 32 to move downward and contact the oil storage cotton 34, compressing the oil storage cotton 34 to produce lubricating oil. The produced lubricating oil flows through the water pipe 35 into the hollow connecting plate 36 and is discharged through the oil outlet 37, thus lubricating the fastener nut 1. When the pressing column 31 moves downward, it will drive the locking block 43 to move downward. The locking block 43 contacts the fastener nut 1 and retracts inward. When it moves to the locking slot 45, the spring 44 resets by its own elasticity, so that the locking block 43 is locked into the locking slot 45. At this time, the connecting column 32 is restricted from popping out.

[0021] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0022] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A high-strength ship fastener, comprising a fastener nut (1), characterized in that: An oil injection device (3) is provided inside the fastener nut (1), and a stabilizing device (4) is provided between the oil injection device (3) and the fastener nut (1). The oil injection device (3) includes a pressing column (31), the lower end of which is fixedly connected to a connecting column (32). A sleeve (33) is fixedly fitted inside the fastener nut (1) near the middle. An oil storage cotton (34) is provided inside the sleeve (33). Connecting plates (36) are fixedly fitted on the front and rear ends and both sides of the fastener nut (1). A water pipe (35) is fixedly connected between the multiple connecting plates (36) and the sleeve (33). Multiple oil outlets (37) are opened on the front end face of the multiple connecting plates (36).

2. The high-strength ship fastener according to claim 1, characterized in that: The stabilizing device (4) includes a square groove (41), which is opened on one side of the pressing column (31). A small square block (42) is fixedly connected to the middle of the inner wall of one side of the square groove (41). Springs (44) are fixedly connected to the front and rear ends of the small square block (42). A locking block (43) is fixedly connected to the opposite ends of the two springs (44). A locking slot (45) is opened on the upper part of the inner wall of the front and rear ends of the fastener nut (1). The locking block (43) is engaged in the locking slot (45).

3. A high-strength ship fastener according to claim 1, characterized in that: The fastener nut (1) is made of TC4 material.

4. A high-strength ship fastener according to claim 1, characterized in that: The connecting column (32) is movably fitted inside the sleeve (33).

5. A high-strength ship fastener according to claim 1, characterized in that: The connecting plate (36) is hollow.

6. A high-strength ship fastener according to claim 2, characterized in that: The front end face of the card block (43) is arranged in a ring shape, and the front end face of the card block (43) is fitted against the inner wall of the fastener nut (1) when the spring (44) is compressed.

7. A high-strength ship fastener according to claim 1, characterized in that: A washer (2) is movably sleeved on the fastener nut (1).

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