Anti-loosening locking device of marine steel-aluminum composite material connecting structure

Abstract

The utility model relates to the technical field of locking devices, and discloses an anti-loosening locking device of a marine steel-aluminum composite material connecting structure, which comprises a bolt, the surface of the bolt is in threaded connection with a first nut, the surface of the bolt is clamped with a buffer gasket, the surface of the bolt is in threaded connection with a second nut, and the surface of the second nut is clamped with the buffer gasket. The inner wall of the second nut is rotatably connected with a rotating frame, a limiting groove is formed in the surface of the bolt, the inner wall of the limiting groove is fixedly connected with a connecting block, a sliding groove is formed in the inner wall of the second nut, and the inner wall of the sliding groove is slidably connected with a limiting sliding block. Mechanical interlocking and elastic buffering of the buffering gasket are achieved through sliding of the limiting sliding blocks on the two sides, the purpose that the steel-aluminum composite material component can be stably fixed, and meanwhile fixing looseness is avoided is achieved, and therefore the practicability of the device is further improved.

Description

Technical Field

[0001] This utility model relates to the field of locking device technology, and in particular to an anti-loosening locking device for a marine steel-aluminum composite material connection structure. Background Technology

[0002] With the continuous advancement of the shipbuilding industry, the demand for lightweight and high-performance materials is increasing. Traditional all-steel materials, due to their heavy nature, have limitations in improving ship navigation performance and fuel efficiency; while all-aluminum materials, although lightweight, still have shortcomings in terms of compressive strength. Therefore, steel-aluminum composite materials, which combine the advantages of both steel and aluminum, are gradually gaining attention, and the research on their connection structures has become crucial.

[0003] When using marine steel-aluminum composite material connection structures, sometimes the bolts or nuts used for connection may become loose due to vibration or load fluctuations of the hull, resulting in an unstable connection between the steel and aluminum composite materials and affecting the overall practicality. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides an anti-loosening locking device for a marine steel-aluminum composite material connection structure.

[0005] This utility model is achieved using the following technical solution: a marine steel-aluminum composite material connection structure anti-loosening locking device, including a bolt, a first nut threadedly connected to the surface of the bolt, a buffer washer snapped onto the surface of the bolt, a second nut threadedly connected to the surface of the bolt, a rotating frame rotatably connected to the inner wall of the second nut, a limit groove formed on the surface of the bolt, a connecting block fixedly connected to the inner wall of the limit groove, a sliding groove formed on the inner wall of the second nut, and a limit slider slidably connected to the inner wall of the sliding groove.

[0006] By using the above technical solution, mechanical interlocking and elastic buffering of the buffer pads are achieved through the sliding of the limit sliders on both sides, which realizes the purpose of stable fixing of steel-aluminum composite material components while preventing loosening, thus improving the practicality of the device.

[0007] As a further improvement to the above solution, the buffer pad is located between the first nut and the second nut, with the second nut located at the upper end of the buffer pad.

[0008] As a further improvement to the above solution, the lower end of the rotating frame is threaded, and the upper end of the limiting slider is threaded.

[0009] By using the above technical solution, the thread at the lower end of the rotating frame and the thread at the upper end of the limiting slider are matched to achieve the purpose of conveniently driving the limiting slider to move, making subsequent limiting work more convenient.

[0010] As a further improvement to the above solution, the lower end of the rotating frame is threadedly connected to the upper end of the limiting slider.

[0011] As a further improvement to the above solution, the buffer pad is made of rubber.

[0012] Through the above technical solution, when the device vibrates or when there is a difference in the thermal expansion coefficients of dissimilar materials such as steel and aluminum, the elastic deformation of the buffer pad can offset part of the impact force and reduce the vibration amplitude transmitted to the nut.

[0013] As a further improvement to the above scheme, the number of limiting sliders is two, and the limiting sliders are symmetrically distributed at the center of the second nut.

[0014] As a further improvement to the above solution, the surface of the limiting slider is engaged with the inner wall of the limiting groove, and the limiting slider is located on both sides of the connecting block.

[0015] Through the above technical solution, the design of the limit slider embedded in the limit groove forms a rigid anti-reverse structure, which directly blocks the rotation path of the nut and prevents the device from becoming loose.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention uses bolts to sequentially pass through the steel-aluminum composite material components being connected. A first nut is then rotated to the surface of the bolt to initially fix the composite material. After the first nut is installed, a rubber buffer pad is placed on the upper end of the first nut. Then, the second nut is rotated, and the buffer pad is brought into contact with the first nut through its threaded downward movement. After contact is achieved, the rotating frame on its inner wall is rotated, thereby driving the threaded limiting slider to embed into the limiting groove on the bolt surface along the sliding groove direction, forming a lateral engagement with the connecting block fixed in the groove. This completes the installation of the device. The mechanical interlocking and elastic buffering of the buffer pad, achieved by the sliding of the limiting sliders on both sides, provides stable fixation of the steel-aluminum composite material components while preventing loosening, thus improving the practicality of the device.

[0018] This invention reduces the vibration amplitude transmitted to the nut by setting a buffer pad and relying on its elastic deformation to offset part of the impact force during subsequent use. At the same time, the rigid interlock between the limiting slider and the limiting groove prevents the second nut from rotating slightly in the opposite direction due to vibration, thereby limiting the position of the second nut and preventing the first nut from loosening and retracting. Furthermore, when disassembling the device, the rotating frame can be rotated in the opposite direction to release the limiting slider from the limiting groove, thus removing the device without damaging its structure. Moreover, because the structure of this device is relatively simple, it is easier to manufacture and use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the specific component structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of some parts of this utility model.

[0022] Explanation of key symbols:

[0023] 1. Bolt; 2. First nut; 3. Buffer washer; 4. Second nut; 5. Rotating frame; 6. Limiting groove; 7. Connecting block; 8. Sliding groove; 9. Limiting slider. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0025] Please combine Figure 1-3 This embodiment of a marine steel-aluminum composite material connection structure anti-loosening locking device includes a bolt 1, a first nut 2 threadedly connected to the surface of the bolt 1, a buffer pad 3 snapped onto the surface of the bolt 1, a second nut 4 threadedly connected to the surface of the bolt 1, a rotating frame 5 rotatably connected to the inner wall of the second nut 4, a limiting groove 6 formed on the surface of the bolt 1, a connecting block 7 fixedly connected to the inner wall of the limiting groove 6, a sliding groove 8 formed on the inner wall of the second nut 4, and a limiting slider 9 slidably connected to the inner wall of the sliding groove 8. The sliding of the limiting sliders 9 on both sides achieves mechanical interlocking and elastic buffering of the buffer pad 3, realizing the purpose of stable fixing of the steel-aluminum composite material component while preventing loosening, thus improving the practicality of the device.

[0026] The buffer pad 3 is located between the first nut 2 and the second nut 4, with the second nut 4 located at the upper end of the buffer pad 3.

[0027] The lower end of the rotating frame 5 is threaded, and the upper end of the limiting slider 9 is threaded. By using the thread at the lower end of the rotating frame 5 to engage with the thread at the upper end of the limiting slider 9, the purpose of conveniently driving the limiting slider 9 to move is achieved, making subsequent limiting work more convenient.

[0028] The lower end of the rotating frame 5 is threadedly connected to the upper end of the limiting slider 9.

[0029] The buffer pad 3 is made of rubber. The elastic deformation of the buffer pad 3 can offset part of the impact force generated by the device during vibration, reduce the vibration amplitude transmitted to the nut 2, and make the device more stable during use.

[0030] There are two limit sliders 9, which are symmetrically distributed at the center of the second nut 4.

[0031] The surface of the limiting slider 9 engages with the inner wall of the limiting groove 6, and the limiting slider 9 is located on both sides of the connecting block 7.

[0032] The implementation principle of the anti-loosening locking device for a marine steel-aluminum composite material connection structure in this application embodiment is as follows: When using the device, firstly, bolts 1 are passed through the steel-aluminum composite material components to be connected in sequence. Then, the first nut 2 is rotated to the surface of bolt 1 to initially fix the composite material. After the first nut 2 is installed, a rubber buffer pad 3 is put on the upper end of the first nut 2. Then, the second nut 4 is rotated to drive the buffer pad 3 to fit against the first nut 2 through the thread downward. After the fit is completed, the rotating frame 5 on its inner wall is rotated to drive the limiting slider 9 connected to it to embed into the limiting groove 6 on the surface of the bolt along the sliding groove 8 direction, and form a lateral lock with the connecting block 7 fixed in the groove. The installation of the device is now complete. During subsequent use, when the device vibrates or experiences load fluctuations, the elastic deformation of the buffer pad 3 offsets part of the impact force, reducing the vibration amplitude transmitted to the nut. At the same time, the rigid interlock between the limiting slider 9 and the limiting groove 6 prevents the second nut 4 from rotating slightly in the opposite direction due to vibration, thereby limiting the position of the second nut 4 and preventing the first nut 2 from loosening and retracting. Furthermore, when disassembling the device, the rotating frame 5 can be rotated in the opposite direction to release the limiting slider 9 from limiting the limiting groove 6, thus removing the device without damaging its structure. Moreover, due to the relatively simple structure of the device, it is easier to manufacture and use, thereby greatly improving the practicality of the device.

[0033] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A locking device for preventing loosening of a marine steel-aluminum composite material connection structure, characterized in that, The device includes a bolt (1), a first nut (2) threaded onto the surface of the bolt (1), a buffer pad (3) snapped onto the surface of the bolt (1), a second nut (4) threaded onto the surface of the bolt (1), a rotating bracket (5) rotatably connected to the inner wall of the second nut (4), a limiting groove (6) formed on the surface of the bolt (1), a connecting block (7) fixedly connected to the inner wall of the limiting groove (6), a sliding groove (8) formed on the inner wall of the second nut (4), and a limiting slider (9) slidably connected to the inner wall of the sliding groove (8).

2. The anti-loosening locking device for a marine steel-aluminum composite material connection structure as described in claim 1, characterized in that: The buffer pad (3) is located between the first nut (2) and the second nut (4), with the second nut (4) located at the upper end of the buffer pad (3).

3. The anti-loosening locking device for a marine steel-aluminum composite material connection structure as described in claim 2, characterized in that: The lower end of the rotating frame (5) is threaded, and the upper end of the limiting slider (9) is threaded.

4. The anti-loosening locking device for a marine steel-aluminum composite material connection structure as described in claim 3, characterized in that: The lower end of the rotating frame (5) is threadedly connected to the upper end of the limiting slider (9).

5. The anti-loosening locking device for a marine steel-aluminum composite material connection structure as described in claim 4, characterized in that: The buffer pad (3) is made of rubber.

6. The anti-loosening locking device for a marine steel-aluminum composite material connection structure as described in claim 5, characterized in that: The number of the limiting sliders (9) is two, and the limiting sliders (9) are symmetrically distributed at the center of the second nut (4).

7. The anti-loosening locking device for a marine steel-aluminum composite material connection structure as described in claim 6, characterized in that: The surface of the limiting slider (9) engages with the inner wall of the limiting groove (6), and the limiting slider (9) is located on both sides of the connecting block (7).

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