Threaded pin anti-loosening device

Abstract

The utility model discloses an anti-loosening device for a threaded pin, which relates to the technical field of threaded pins and comprises a connecting part, a threaded pin head, a threaded pin rod, a first buffer pad, an elastic mechanism arranged on the threaded pin rod, a locking nut, a limiting groove, a limiting mechanism arranged on the threaded pin rod, an anti-loosening mechanism arranged on the threaded pin rod and a fixing bolt. A positioning rod and a locking nut; through cooperation of the elastic mechanism, the locking nut, the limiting mechanism, the fixing bolt, the anti-loosening mechanism, the positioning rod and the locking nut, the friction force between the locking nut and the threaded pin rod is increased, rotation of the threaded pin rod is effectively limited, and therefore the multiple anti-loosening effect is achieved; when maintenance is needed, all parts can be taken down by unscrewing the locking nut, taking out the positioning rod, the limiting mechanism and the anti-loosening mechanism and finally unscrewing the locking nut, equipment maintenance and part replacement are facilitated, and the maintenance difficulty and the time cost are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of threaded pin technology, and in particular to a threaded pin anti-loosening device. Background Technology

[0002] Threaded pins are fasteners with external threads, typically used to secure two or more parts together. These pins can be used with corresponding nuts or internally threaded holes to achieve a firm connection between parts. However, vibrations during equipment operation can cause threaded pins to loosen. Currently, one method to prevent loosening is to apply a thread-locking agent to the surface of the pin. After the agent cures, it fills the gap. While this method is effective at loosening, it makes disassembly difficult, causing significant inconvenience during equipment maintenance and increasing the difficulty and time cost of repairs. Therefore, an improvement is urgently needed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a threaded pin anti-loosening device, which aims to solve the above-mentioned technical problems to a certain extent.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A threaded pin anti-loosening device includes a connecting component, a threaded pin head, and a threaded pin shank, and further includes:

[0006] The first buffer pad is disposed on the threaded pin;

[0007] An elastic mechanism is provided on the threaded pin;

[0008] A lock nut is provided on the threaded pin and is threadedly connected to the threaded pin.

[0009] There are four limiting grooves, which are set on the threaded pin.

[0010] A limiting mechanism is disposed on the threaded pin and is slidably connected to the threaded pin;

[0011] An anti-loosening mechanism is provided on the threaded pin;

[0012] Four fixing bolts are provided, and the four fixing bolts are set on the limiting mechanism and the anti-loosening mechanism;

[0013] Two positioning rods are provided, and the two positioning rods are set on the anti-loosening mechanism and the connecting component;

[0014] A locking nut is provided on the threaded pin and is threadedly connected to the threaded pin.

[0015] Preferably, the elastic mechanism includes:

[0016] The second buffer pad is disposed on the threaded pin;

[0017] An elastic washer is disposed on the threaded pin, and the inner diameter of the elastic washer is adapted to the threaded pin.

[0018] The third buffer pad is provided on the threaded pin.

[0019] Preferably, the limiting mechanism includes:

[0020] An annular limiting plate is disposed on the threaded pin, wherein the inner diameter of the annular limiting plate is larger than the outer diameter of the threaded pin;

[0021] Four limiting moving blocks are provided, and the four limiting moving blocks are disposed on the annular limiting plate and fixedly connected to the annular limiting plate;

[0022] There are four first fixing holes, which are set on the annular limiting plate.

[0023] Preferably, the anti-loosening mechanism includes:

[0024] An anti-loosening washer is provided on the threaded pin, wherein the inner diameter of the anti-loosening washer is larger than the outer diameter of the threaded pin;

[0025] There are four second fixing holes, which are provided on the anti-loosening gasket.

[0026] There are two positioning holes, which are symmetrically arranged on the anti-loosening gasket.

[0027] Preferably, the limiting moving block is slidably connected to the threaded pin.

[0028] Preferably, the outer diameter of the anti-loosening gasket is larger than the outer diameter of the annular limiting plate.

[0029] Preferably, the inner diameter of the first buffer pad is greater than the outer diameter of the threaded pin, the inner diameter of the second buffer pad is greater than the outer diameter of the threaded pin, and the inner diameter of the third buffer pad is greater than the outer diameter of the threaded pin.

[0030] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0031] By utilizing the interplay between the elastic mechanism, locking nut, limiting mechanism, fixing bolt, anti-loosening mechanism, positioning rod, and locking nut, the friction between the locking nut and the threaded pin is increased, effectively limiting the rotation of the threaded pin and achieving multiple anti-loosening effects. When maintenance is required, by loosening the locking nut, removing the positioning rod, limiting mechanism, and anti-loosening mechanism, and finally loosening the locking nut, each component can be removed, facilitating equipment maintenance and component replacement, greatly reducing maintenance difficulty and time costs. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A three-dimensional structural schematic diagram of a threaded pin anti-loosening device is shown.

[0034] Figure 2 A front view of a threaded pin anti-loosening device is shown.

[0035] Figure 3 A side view of a threaded pin anti-loosening device is shown.

[0036] Figure 4 It shows Figure 3 Cross-sectional view of AA.

[0037] Figure 5 A three-dimensional schematic diagram of the structure of the threaded pin, locking nut, limiting groove, fixing bolt, positioning rod, limiting mechanism and anti-loosening mechanism is shown.

[0038] Legend:

[0039] 1. Connecting component; 2. Threaded pin head; 3. Threaded pin rod; 4. First buffer pad; 5. Locking nut; 6. Limiting groove; 7. Fixing bolt; 8. Positioning rod; 9. Locking nut; 10. Second buffer pad; 11. Elastic washer; 12. Third buffer pad; 13. Annular limiting plate; 14. Limiting moving block; 15. First fixing hole; 16. Anti-loosening washer; 17. Second fixing hole; 18. Positioning hole. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] Reference Figures 1 to 5 The following is a further description of an embodiment of the threaded pin anti-loosening device of the present invention.

[0043] A threaded pin anti-loosening device includes a connecting component 1, a threaded pin head 2, and a threaded pin rod 3, and further includes:

[0044] The first buffer pad 4 is disposed on the threaded pin 3; the inner diameter of the first buffer pad 4 is larger than the outer diameter of the threaded pin 3; when the equipment operates and generates vibration or impact, it is used to absorb some energy, reduce damage to the connecting shoulder and the threaded pin, and extend the service life.

[0045] Reference Figure 2 and Figure 3 In a preferred embodiment, an elastic mechanism is disposed on the threaded pin 3; the elastic mechanism includes:

[0046] The second buffer pad 10 is disposed on the threaded pin 3; the inner diameter of the second buffer pad 10 is larger than the outer diameter of the threaded pin 3; it is used to disperse the pressure transmitted by the elastic washer 11 and avoid damage to the connecting parts 1.

[0047] An elastic washer 11 is disposed on the threaded pin 3, and the inner diameter of the elastic washer 11 is adapted to the threaded pin 3; it is used to release elastic potential energy to generate a force toward the locking nut 9, increase the friction between the threaded pin 3 and the locking nut 5, thereby effectively preventing the threaded pin from loosening.

[0048] A third buffer pad 12 is disposed on the threaded pin 3. The inner diameter of the third buffer pad 12 is larger than the outer diameter of the threaded pin 3; it is used to disperse the pressure transmitted from the elastic washer 11 to the locking nut 5, thereby preventing the locking nut 5 from damaging the threaded pin 3.

[0049] A locking nut 5 is mounted on the threaded pin 3 and threadedly connected to the threaded pin 3; it is used to tightly fix the first buffer pad 4, the connecting parts, and the elastic mechanism together, and cooperates with the elastic mechanism to prevent loosening.

[0050] There are four limiting grooves 6, which are provided on the threaded pin 3; they are used to provide a moving track for the limiting moving block 14, limit the moving position of the limiting moving block 14, and thus limit the moving position of the limiting moving block 14.

[0051] Reference Figures 1 to 4 In a preferred embodiment, a limiting mechanism is disposed on the threaded pin 3 and slidably connected to the threaded pin 3; the limiting mechanism includes:

[0052] An annular limiting plate 13 is disposed on the threaded pin 3, and the inner diameter of the annular limiting plate 13 is larger than the outer diameter of the threaded pin 3.

[0053] Four limiting moving blocks 14 are provided, and the four limiting moving blocks 14 are disposed on the annular limiting plate 13 and fixedly connected to the annular limiting plate 13; the limiting moving blocks 14 are slidably connected to the threaded pin 3. They are used to connect the annular limiting plate 13 and the threaded pin 3, so that the annular limiting plate 13 and the threaded pin 3 can only rotate together;

[0054] Four first fixing holes 15 are provided, and the four first fixing holes 15 are set on the annular limiting plate 13. They are used to install fixing bolts 7;

[0055] Reference Figures 1 to 5 In a preferred embodiment, an anti-loosening mechanism is provided on the threaded pin 3; it cooperates with the limiting mechanism and the positioning rod 8 to prevent the threaded pin 3 from rotating, thereby achieving the effect of preventing loosening; the anti-loosening mechanism includes:

[0056] An anti-loosening washer 16 is disposed on the threaded pin 3. The inner diameter of the anti-loosening washer 16 is larger than the outer diameter of the threaded pin 3. The outer diameter of the anti-loosening washer 16 is larger than the outer diameter of the annular limiting plate 13.

[0057] There are four second fixing holes 17, which are provided on the anti-loosening washer 16 for installing fixing bolts 7.

[0058] Two positioning holes 18 are provided, symmetrically arranged on the anti-loosening washer 16. These are used to install the positioning rod 8.

[0059] Four fixing bolts 7 are provided, and the four fixing bolts 7 are set on the limiting mechanism and the anti-loosening mechanism; they are used to cooperate with the first fixing hole 15 and the second fixing hole 17 to fix the annular limiting plate 13 and the anti-loosening gasket 16 together.

[0060] Two positioning rods 8 are provided, and the two positioning rods 8 are set on the anti-loosening mechanism and the connecting component 1; they are used to prevent the anti-loosening gasket 16 from rotating, thereby preventing the annular limiting plate 13 from rotating. The annular limiting plate 13 restricts the rotation of the threaded pin 3 through the limiting moving block 14, thereby achieving the anti-loosening effect.

[0061] A locking nut 9 is mounted on the threaded pin 3 and threadedly connected to it. It is used to limit and fix the position of the anti-loosening washer 16 and the annular limiting plate 13, and also to provide additional tightening force, further improving the stability of the anti-loosening device.

[0062] Working principle: The threaded pin 3 is manually passed through the first buffer pad 4 and inserted into the mounting hole of the connecting component 1. Then, the second buffer pad 10, the elastic washer 11, and the third buffer pad 12 are sequentially placed on the threaded pin 3. The locking nut 5 is rotated, and it tightly secures the first buffer pad 4, the connecting component 1, the second buffer pad 10, the elastic washer 11, and the third buffer pad 12 together. Simultaneously, the elastic washer 11 is compressed, generating elastic potential energy. The release of this elastic potential energy generates a force towards the locking nut 5, thereby increasing the friction between the threaded pin 3 and the locking nut 5 and preventing the threaded pin from loosening. Four fixing bolts 7 are manually passed through the annular ring... The first fixing hole 15 on the limiting plate 13 and the second fixing hole 17 on the anti-loosening washer 16 fix the annular limiting plate 13 and the anti-loosening washer 16 together. The annular limiting plate 13 and the anti-loosening washer 16 are then fitted onto the threaded pin 3. The annular limiting plate 13 drives the limiting moving block 14 to move along the limiting groove 6 on the threaded pin 3 to the locking nut 5. Then, the two positioning rods 8 are inserted into the positioning holes 18 on the anti-loosening washer 16 and the connecting component 1 to prevent the anti-loosening washer 16 from rotating, thereby preventing the annular limiting plate 13 from rotating, and further preventing the threaded pin 3 from rotating. Finally, the locking nut 9 is tightened to limit and fix the position of the anti-loosening washer 16, further improving the effect of the anti-loosening device.

[0063] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A threaded pin anti-loosening device, comprising a connecting component (1), a threaded pin head (2), and a threaded pin rod (3), characterized in that, Also includes: The first buffer pad (4) is disposed on the threaded pin (3); An elastic mechanism is provided on the threaded pin (3); A locking nut (5) is provided on the threaded pin (3) and is threadedly connected to the threaded pin (3); There are four limiting grooves (6), which are provided on the threaded pin (3); A limiting mechanism is provided on the threaded pin (3) and is slidably connected to the threaded pin (3); An anti-loosening mechanism is provided on the threaded pin (3); Four fixing bolts (7) are provided, and the four fixing bolts (7) are set on the limiting mechanism and the anti-loosening mechanism; Two positioning rods (8) are provided, and the two positioning rods (8) are set on the anti-loosening mechanism and the connecting component (1); A locking nut (9) is placed on the threaded pin (3) and threadedly connected to the threaded pin (3).

2. The threaded pin anti-loosening device according to claim 1, characterized in that, The elastic mechanism includes: The second buffer pad (10) is disposed on the threaded pin (3); An elastic washer (11) is disposed on the threaded pin (3), and the inner diameter of the elastic washer (11) is adapted to the threaded pin (3); The third buffer pad (12) is disposed on the threaded pin (3).

3. The threaded pin anti-loosening device according to claim 2, characterized in that, The inner diameter of the second buffer pad (10) is greater than the outer diameter of the threaded pin (3), and the inner diameter of the third buffer pad (12) is greater than the outer diameter of the threaded pin (3).

4. The threaded pin anti-loosening device according to claim 1, characterized in that, The limiting mechanism includes: An annular limiting plate (13) is disposed on the threaded pin (3), and the inner diameter of the annular limiting plate (13) is larger than the outer diameter of the threaded pin (3); There are four limiting moving blocks (14), which are set on the annular limiting plate (13) and fixedly connected to the annular limiting plate (13); There are four first fixing holes (15), which are provided on the annular limiting plate (13).

5. A threaded pin anti-loosening device according to claim 4, characterized in that, The limiting moving block (14) is slidably connected to the threaded pin (3).

6. A threaded pin anti-loosening device according to claim 1, characterized in that, The anti-loosening mechanism includes: An anti-loosening washer (16) is provided on the threaded pin (3), and the inner diameter of the anti-loosening washer (16) is larger than the outer diameter of the threaded pin (3); There are four second fixing holes (17), which are provided on the anti-loosening gasket (16); There are two positioning holes (18), which are symmetrically arranged on the anti-loosening gasket (16).

7. A threaded pin anti-loosening device according to claim 6, characterized in that, The outer diameter of the anti-loosening gasket (16) is larger than the outer diameter of the annular limiting plate (13).

8. A threaded pin anti-loosening device according to claim 1, characterized in that, The inner diameter of the first buffer pad (4) is larger than the outer diameter of the threaded pin (3).

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