Marine anticorrosive bolt anti-loosening locking structure

CN224903744UActive Publication Date: 2026-10-27TIANJIN DAQI NEW ENERGY TECHNOLOGY DEVELOPMENT CO LTD
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Patent Information

Application Number
CN202522689397.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-18
Publication Date
2026-10-27
Estimated Expiration
2035-12-18

AI Technical Summary

Technical Problem

[0003]螺栓在独立使用以及配合螺母紧固结构件时,螺栓因外力作用特别是在持续振动环境下,螺栓和螺母容易反向转动,导致结构件之间的紧固螺栓松动甚至脱落,存在较大的安全隐患,针对上述问题,我们推出了一种海上防腐螺栓防脱锁紧结构

Benefits of technology

[0015]其一,通过设置锁定组件,利用第一斜块和第二斜块嵌入零件中,当螺栓和螺母在振动等外力作用下有反向转动的趋势时,斜块的凸面会紧紧抵住零件,就像在圆环和零件之间设置了一个“止动结构”。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of offshore anticorrosive bolt anti-loose locking structures, it is related to bolt technical field, including bolt body, the one end of bolt body is fixedly connected with bolt head, the outside of bolt body is threadedly connected with nut, the outside of bolt body is respectively provided with first ring and second ring, the side of first ring and second ring is all provided with locking assembly;Locking assembly includes first inclined block, first inclined block equidistance fixedly connected in the side of first ring.The utility model discloses a kind of offshore anticorrosive bolt anti-loose locking structures, with the help of locking assembly, first inclined block and second inclined block insert part, when bolt and nut are reversed rotation due to vibration and other external force, inclined block convex surface will be tightly inserted part, like in annular and part added "stop structure".Positioning block and positioning groove structure then connect annular, nut and bolt body, effectively prevent bolt loosening, guarantee structural member connection closely.
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Description

Technical Field

[0001] This utility model relates to the field of bolt technology, and in particular to a locking structure for preventing the loosening of marine corrosion-resistant bolts. Background Technology

[0002] Bolts are a type of fastener consisting of a head and a threaded shaft. They are used in conjunction with nuts to fasten two parts with through holes. Bolts are anchoring components that secure the connected parts to each other.

[0003] When bolts are used independently or with nuts to fasten structural components, the bolts and nuts are prone to reverse rotation due to external forces, especially under continuous vibration. This can cause the fastening bolts between structural components to loosen or even fall off, posing a significant safety hazard. To address these issues, we have developed a marine corrosion-resistant bolt anti-loosening locking structure. Utility Model Content

[0004] This utility model discloses a locking structure for preventing the loosening of marine anti-corrosion bolts. It studies and improves the existing structure and its shortcomings, and provides a locking structure for preventing the loosening of marine anti-corrosion bolts to achieve better practical value.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A marine anti-corrosion bolt anti-loosening locking structure includes a bolt body, a bolt head fixedly connected to one end of the bolt body, a nut threadedly connected to the outer side of the bolt body, and a first ring and a second ring threadedly connected to the outer side of the bolt body respectively. A locking component is provided on one side of both the first ring and the second ring.

[0007] The locking assembly includes a first inclined block, which is fixedly connected at equal intervals to one side of a first ring. A first mounting block is fixedly connected at equal intervals to the other side of the first ring. A first threaded rod is threadedly connected to the inside of the first mounting block. A first positioning block is rotatably connected to one end of the first threaded rod. One side of the first positioning block is slidably connected to one side of the first ring.

[0008] In a preferred embodiment, the outer side of the bolt head is provided with a first positioning groove at equal intervals, and the outer side of the first positioning block is slidably connected to the inside of the first positioning groove.

[0009] In a preferred embodiment, a first spring is provided on the outer side of the first threaded rod, and a first partition plate is fixedly connected at equal intervals to the outer side of the bolt head.

[0010] In a preferred embodiment, a second inclined block is fixedly connected at equal intervals to one side of the second ring, and a second mounting block is fixedly connected at equal intervals to the other side of the second ring. A second threaded rod is threadedly connected to the inside of the second mounting block, and a second positioning block is rotatably connected to one end of the second threaded rod. One side of the second positioning block is slidably connected to one side of the second ring.

[0011] In a preferred embodiment, the outer side of the nut is provided with a second positioning groove at equal intervals, and the outer side of the second positioning block is slidably connected to the inside of the second positioning groove.

[0012] In a preferred embodiment, a second spring is provided on the outer side of the second threaded rod, and a second partition plate is fixedly connected at equal intervals to the outer side of the nut.

[0013] In a preferred embodiment, the first and second inclined blocks are equal in size but opposite in direction.

[0014] The anti-loosening locking structure for marine corrosion-resistant bolts provided by this utility model has the following advantages:

[0015] Firstly, by setting a locking component, the first and second inclined blocks are embedded in the part. When the bolt and nut tend to rotate in the opposite direction under the action of external forces such as vibration, the convex surface of the inclined block will tightly press against the part, just like setting a "stop structure" between the ring and the part.

[0016] Secondly, the positioning block and positioning groove structure connects the ring, nut and bolt body, thereby effectively preventing the bolt from loosening and ensuring that the connection between the structural components always remains tight. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a marine anti-corrosion bolt anti-loosening locking structure proposed in this utility model.

[0018] Figure 2 This is a first exploded schematic diagram of a marine anti-corrosion bolt anti-loosening locking structure proposed in this utility model.

[0019] Figure 3 This is a second exploded double-sided schematic diagram of a marine anti-corrosion bolt anti-loosening locking structure proposed in this utility model.

[0020] Figure 4 This is a third exploded double-sided schematic diagram of a marine anti-corrosion bolt anti-loosening locking structure proposed in this utility model.

[0021] In the attached diagram: 1. Bolt body; 2. Bolt head; 3. Nut; 4. First ring; 5. First wedge block; 6. First mounting block; 7. First threaded rod; 8. First positioning block; 9. First positioning groove; 10. First spring; 11. First partition plate; 12. Second wedge block; 13. Second mounting block; 14. Second threaded rod; 15. Second positioning block; 16. Second positioning groove; 17. Second spring; 18. Second partition plate; 19. Second ring. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] The present invention discloses a marine anti-corrosion bolt anti-loosening locking structure, which is mainly used in bolt applications.

[0024] Reference Figures 1 to 4 A marine anti-corrosion bolt anti-loosening locking structure includes: a bolt body 1, a bolt head 2 fixedly connected to one end of the bolt body 1, a nut 3 threadedly connected to the outer side of the bolt body 1, a first ring 4 and a second ring 19 respectively provided on the outer side of the bolt body 1, and a locking component provided on one side of the first ring 4 and the second ring 19.

[0025] The locking assembly includes a first inclined block 5, which is fixedly connected to one side of the first ring 4 at equal distances. A first mounting block 6 is fixedly connected to the other side of the first ring 4 at equal distances. A first threaded rod 7 is threadedly connected to the inside of the first mounting block 6. A first positioning block 8 is rotatably connected to one end of the first threaded rod 7. One side of the first positioning block 8 is slidably connected to one side of the first ring 4.

[0026] The outer side of the bolt head 2 is provided with a first positioning groove 9 at equal intervals, and the outer side of the first positioning block 8 is slidably connected to the inside of the first positioning groove 9;

[0027] A first spring 10 is provided on the outer side of the first threaded rod 7, and a first partition plate 11 is fixedly connected at equal intervals on the outer side of the bolt head 2;

[0028] A second inclined block 12 is fixedly connected at equal intervals on one side of the second ring 19, and a second mounting block 13 is fixedly connected at equal intervals on the other side of the second ring 19. A second threaded rod 14 is threadedly connected inside the second mounting block 13. A second positioning block 15 is rotatably connected to one end of the second threaded rod 14. One side of the second positioning block 15 is slidably connected to one side of the second ring 19.

[0029] The outer side of the nut 3 is provided with a second positioning groove 16 at equal intervals, and the outer side of the second positioning block 15 is slidably connected to the inside of the second positioning groove 16.

[0030] A second spring 17 is provided on the outer side of the second threaded rod 14, and a second partition plate 18 is fixedly connected at equal intervals on the outer side of the nut 3.

[0031] In the above technical solution, considering that when bolts are used independently or when fastening structural components with nuts, the bolts and nuts are prone to reverse rotation due to external forces, especially under continuous vibration, leading to loosening or even detachment of the fastening bolts between structural components, posing a significant safety hazard, the specific operation is as follows: When installing the bolt, first insert the bolt body 1 into the part hole, ensuring the first wedge 5 is tightly against the part. Then, place the nut 3 and the second ring 19 onto the bolt body 1 and tighten them. After tightening, the first wedge 5 and the second wedge 12 will embed into the part. Under external forces such as vibration, if the bolt body 1 and the nut 3 rotate in opposite directions, the convex surfaces of the first wedge 5 and the second wedge 12 will abut against the part, preventing the bolt from loosening. When it is necessary to remove the bolt, simply rotate the first threaded rod 7 out of the first positioning groove 9 and the second threaded rod 14 out of the second positioning groove 16, releasing the restriction on the bolt head 2 and the nut 3. Then, unscrew the nut 3 in the opposite direction, pull out the second ring 19, and finally remove the bolt body 1 and the first ring 4, completing the bolt removal. By setting a locking component, the first inclined block 5 and the second inclined block 12 are embedded in the part. When the bolt and nut tend to rotate in the opposite direction under the action of external forces such as vibration, the convex surface of the inclined block will tightly abut against the part, just like setting a "stop structure" between the ring and the part. The positioning block and positioning groove structure connect the ring, nut 3 and bolt body 1, thereby effectively preventing the bolt from loosening and ensuring that the connection between the structural components always remains tight.

[0032] Reference Figures 1 to 4 In a preferred embodiment, the first inclined block 5 and the second inclined block 12 are equal in size but opposite in direction;

[0033] Working principle: When installing the bolt, first insert the bolt body 1 into the part hole, ensuring the first wedge 5 is tightly against the part. Then, place the nut 3 and the second ring 19 onto the bolt body 1 and tighten them. After tightening, the first wedge 5 and the second wedge 12 will embed into the part. Under external forces such as vibration, if the bolt body 1 and the nut 3 rotate in opposite directions, the convex surfaces of the first wedge 5 and the second wedge 12 will abut against the part, preventing the bolt from loosening. When it is necessary to remove the bolt, simply rotate the first threaded rod 7 out of the first positioning groove 9 and the second threaded rod 14 out of the second positioning groove 16, releasing the restriction on the bolt head 2 and the nut 3. Then, unscrew the nut 3 in the opposite direction, pull out the second ring 19, and finally remove the bolt body 1 and the first ring 4 to complete the bolt removal. All content not described in detail in this specification belongs to existing technology known to those skilled in the art.

[0034] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A marine anti-corrosion bolt anti-loosening locking structure, comprising a bolt body (1), characterized in that, One end of the bolt body (1) is fixedly connected to a bolt head (2), and a nut (3) is threadedly connected to the outer side of the bolt body (1). A first ring (4) and a second ring (19) are respectively provided on the outer side of the bolt body (1), and a locking component is provided on one side of the first ring (4) and the second ring (19). The locking assembly includes a first inclined block (5), which is fixedly connected at equal intervals to one side of the first ring (4). A first mounting block (6) is fixedly connected at equal intervals to the other side of the first ring (4). A first threaded rod (7) is threadedly connected to the inside of the first mounting block (6). A first positioning block (8) is rotatably connected to one end of the first threaded rod (7). One side of the first positioning block (8) is slidably connected to one side of the first ring (4).

2. The anti-loosening locking structure for marine anti-corrosion bolts according to claim 1, characterized in that, The bolt head (2) has a first positioning groove (9) equidistantly provided on the outer side, and the outer side of the first positioning block (8) is slidably connected to the inside of the first positioning groove (9).

3. The anti-loosening locking structure for marine anti-corrosion bolts according to claim 1, characterized in that, A first spring (10) is provided on the outer side of the first threaded rod (7), and a first partition plate (11) is fixedly connected at equal intervals to the outer side of the bolt head (2).

4. The anti-loosening locking structure for marine anti-corrosion bolts according to claim 1, characterized in that, A second inclined block (12) is fixedly connected at equal intervals on one side of the second ring (19), and a second mounting block (13) is fixedly connected at equal intervals on the other side of the second ring (19). A second threaded rod (14) is threadedly connected inside the second mounting block (13), and a second positioning block (15) is rotatably connected to one end of the second threaded rod (14). One side of the second positioning block (15) is slidably connected to one side of the second ring (19).

5. The anti-loosening locking structure for marine anti-corrosion bolts according to claim 4, characterized in that, The nut (3) has a second positioning groove (16) equidistantly provided on its outer side, and the outer side of the second positioning block (15) is slidably connected to the inside of the second positioning groove (16).

6. The anti-loosening locking structure for marine anti-corrosion bolts according to claim 5, characterized in that, A second spring (17) is provided on the outer side of the second threaded rod (14), and a second partition plate (18) is fixedly connected at equal intervals on the outer side of the nut (3).

7. The anti-loosening locking structure for marine anti-corrosion bolts according to claim 1, characterized in that, The first inclined block (5) and the second inclined block (12) are equal in size but opposite in direction.