Anti-loosening sawtooth-shaped ring groove structure of ring groove rivet

Abstract

The utility model relates to the technical field of rivets, and discloses an anti-loosening zigzag ring groove structure of a ring groove rivet, which comprises a rivet, the outer wall of the rivet is provided with a threaded groove and a clamping groove, the top of the rivet is in sliding connection with a top cover, the outer wall of the top cover is fixedly connected with a fixed disc, the inner wall of the fixed disc is in threaded connection with a plurality of first screws, and the first screws are in threaded connection with the fixed disc. The outer wall of the rivet is in threaded connection with a riveting nut, the outer wall of the riveting nut is fixedly connected with a plurality of fixing sleeves, the inner walls of the plurality of fixing sleeves are provided with second screws, the outer wall of the riveting nut is provided with a fixing assembly, the fixing assembly comprises a base plate, the base plate is fixed on the outer wall of the riveting nut, and the base plate is fixed on the outer wall of the riveting nut. The inner wall of the base plate is fixedly connected with a top plate. According to the utility model, through the threaded engagement of the riveting nut and the rivet and the limiting matching of the clamping groove and the buckle, the multiple fixing effect on the rivet is realized, the riveting nut is prevented from falling off or loosening after being used for a long time, and the reliability and the stability of rivet connection are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to rivet field especially relates to ring groove rivet anti -loosening serrated ring groove structure. BACKGROUND

[0002] Ring groove rivet, also known as huck bolt, is a special rivet, mainly consisting of rivet and bolt sleeve two parts. It is designed based on hooke's law principle and special bolt equipment, has high strength, good shock resistance, construction convenient and so on. Ring groove rivet is made of high-quality carbon steel, riveting strength is high, firm and reliable.

[0003] The riveting nut is unstable after the ring groove rivet is fixed, which will directly affect the riveting quality and component reliability, the connection strength decreases greatly, the riveting nut cannot tightly bite the rivet shank ring groove, and is prone to loosening and slipping under stress, leading to component connection failure, causing structure loosening or even falling off, threatening equipment operation safety. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortage, the utility model provides ring groove rivet anti-loosening serrated ring groove structure, aims at improving the problem of unstable riveting nut.

[0005] In order to realize the above purpose, the utility model provides the following technical scheme: ring groove rivet anti-loosening serrated ring groove structure, including rivet, the outer wall of rivet is equipped with thread groove and clamping groove, the top of rivet is slidably connected with top cover, the outer wall of top cover is fixedly connected with fixed disc, the inner wall of fixed disc is threadedly connected with a plurality of first screws, the outer wall of rivet is threadedly connected with riveting nut, the outer wall of riveting nut is fixedly connected with a plurality of fixed sleeves, the inner wall of a plurality of fixed sleeves is provided with second screw, the outer wall of riveting nut is provided with fixed assembly.

[0006] Preferably, the fixed assembly comprises a bottom disc fixed to the outer wall of the riveting nut, a top disc fixedly connected to the inner wall of the bottom disc, a support sleeve fixedly connected to the outer wall of the top disc, and a plurality of springs fixedly connected to the outer wall of the support sleeve.

[0007] Preferably, the inner wall of the riveting nut is provided with a clamping block corresponding to the thread groove and the clamping groove, and the clamping block is clamped to the inner wall of the clamping groove.

[0008] Preferably, a plurality of second screws are threadedly connected to the inner wall of the riveting nut and slidably connected to the outer wall of the rivet.

[0009] Preferably, the springs are arranged on the side close to the support sleeve and the bottom disc.

[0010] Preferably, the support sleeve and the top disc are made of nitrile rubber.

[0011] Preferably, the support sleeve and the top disc are both slidingly connected to the outer wall of the rivet.

[0012] Preferably, the plurality of first screws, second screws and springs are symmetrically installed.

[0013] The utility model has the advantages of the following:

[0014] 1. In the utility model, the rivet nut, the threaded groove, the clamping groove, the clamping buckle, the top cover, the fixed disc, the first screw, the second screw and the spring are combined to achieve the multiple fixing effect of the rivet, prevent the rivet nut from falling off or loosening after long-term use, and ensure the reliability and stability of the rivet connection.

[0015] 2. In the utility model, the bottom disc and the top disc structure, the spring elastic support structure between the two, realize the self-adaptive adjustment effect of the uneven surface, at the same time, the clamping strength of the clamping groove and the clamping buckle is strengthened, and the rivet is prevented from loosening due to the uneven surface. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A perspective view of the sawtooth ring groove structure of the ring groove rivet anti-loosening structure is provided for the utility model;

[0017] Figure 2 A perspective view of the rivet nut of the sawtooth ring groove structure of the ring groove rivet anti-loosening structure is provided for the utility model;

[0018] Figure 3 A perspective view of the rivet of the sawtooth ring groove structure of the ring groove rivet anti-loosening structure is provided for the utility model;

[0019] Figure 4 A perspective view of the top cover of the sawtooth ring groove structure of the ring groove rivet anti-loosening structure is provided for the utility model;

[0020] Figure 5 A perspective view of the bottom disc of the sawtooth ring groove structure of the ring groove rivet anti-loosening structure is provided for the utility model.

[0021] LEGEND:

[0022] 1. Rivet; 2. Threaded groove; 3. Clamping groove; 4. Top cover; 5. Fixed disc; 6. First screw; 7. Rivet nut; 8. Fixed sleeve; 9. Second screw; 10. Bottom disc; 11. Top disc; 12. Support sleeve; 13. Spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the utility model's specification. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of the utility model protection.

[0024] With reference to Figures 1-3 , the utility model provides an embodiment: ring groove rivet anti -loosening sawtooth ring groove structure, including rivet 1, the outer wall of rivet 1 is equipped with thread groove 2 and clamping groove 3, the top of rivet 1 is slidably connected with top cover 4, the outer wall of top cover 4 is fixedly connected with fixed disc 5, the inner wall of fixed disc 5 is threadedly connected with a plurality of first screw 6, the outer wall of rivet 1 is threadedly connected with rivet nut 7, the outer wall of rivet nut 7 is fixedly connected with a plurality of fixed sleeve 8, the inner wall of a plurality of fixed sleeve 8 is provided with second screw 9, the outer wall of rivet nut 7 is provided with fixed assembly;The inner wall of rivet nut 7 is installed with the clamping block corresponding with thread groove 2 and clamping groove 3, and the clamping block is clamped in the inner wall of clamping groove 3;A plurality of second screw 9 are threadedly connected in the inner wall of rivet nut 7 and are slidably connected in the outer wall of rivet 1;A plurality of first screw 6, second screw 9, spring 13 are all symmetrically installed.

[0025] Specifically, the thread groove 2 of the outer wall of rivet 1 and the corresponding clamping block of the inner wall of rivet nut 7 form precise thread engagement, and the clamping groove 3 and the clamping block in the rivet nut 7 constitute a concave-convex engagement limiting buckle structure, which effectively prevents the axial slip or circumferential rotation of the rivet nut 7 under vibration and alternating load by utilizing the mechanical interlocking characteristics of the sawtooth ring groove, thereby fundamentally solving the problem of easy loosening of the rivet 1 connection;The top cover 4 is rigidly connected with the fixed point through the fixed disc 5 and the symmetrically distributed first screw 6, not only covering the exposed part of the top of the rivet 1 to form a protective barrier, but also firmly locking the top of the rivet 1 through the plane contact of the fixed disc 5 with the base surface and the uniform stress design of multiple screws, cooperating with the limiting constraint of the fixed sleeve 8 on the outer wall of the rivet nut 7 and the second screw 9 on the circumferential position of the nut, the second screw 9 being threadedly connected to the inner wall of the rivet nut 7 and slidably attached to the outer wall of the rivet 1, which can further limit the rotation of the rivet nut 7 around the axis of the rivet 1, significantly improving the fatigue resistance and load uniformity of the connection structure.

[0026] With reference to Figure 1 , Figure 4 , Figure 5The fixed assembly comprises a bottom disc 10 fixed to the outer wall of the riveting nut 7, an inner wall of the bottom disc 10 fixedly connected with a top disc 11, an outer wall of the top disc 11 fixedly connected with a supporting sleeve 12, and an outer wall of the supporting sleeve 12 fixedly connected with a plurality of springs 13; the springs 13 are arranged on the side close to the bottom disc 10 of the supporting sleeve 12; the supporting sleeve 12 and the top disc 11 are made of nitrile rubber; and the supporting sleeve 12 and the top disc 11 are both slidingly connected to the outer wall of the rivet 1.

[0027] Specifically, the bottom disc 10 is fixed to the outer wall of the riveting nut 7, and the outer side of the top disc 11 connected to the inner wall of the bottom disc 10 is provided with the supporting sleeve 12 made of nitrile rubber. The nitrile rubber has excellent elastic deformation capacity and wear resistance, can closely fit the uneven fixed surface, and forms a flexible wrapping on the outer wall of the rivet 1 to avoid local stress concentration caused by rigid contact. The springs 13 arranged between the supporting sleeve 12 and the bottom disc 10 generate elastic reaction force under pressure when the riveting nut 7 is screwed upward, push the top disc 11 to drive the supporting sleeve 12 to displace synchronously and adhere to the irregular base surface. Through the elastic compensation effect of the springs 13, the height difference on the fixed point surface is effectively offset, so that the supporting sleeve 12 always maintains uniform contact pressure with the plane, thereby enhancing the fitting stability of the connecting structure, and further clamping the riveting nut 7 and the clamping groove 3 and the corresponding clamping block of the rivet 1 through the reaction force of the springs 13, so as to strengthen the meshing strength of the serrated annular groove by using elastic pre-tightening force, and prevent the riveting nut 7 from loosening or the rivet 1 from displacing due to uneven surface.

[0028] Working principle: when the rivet 1 needs to be fixed at a fixed point, the rivet 1 is inserted through a reserved hole, and the riveting nut 7 is screwed onto the bottom of the rivet 1. Since the inner wall of the riveting nut 7 has threads matched with the thread groove 2 on the outer wall of the rivet 1, the riveting nut 7 can be easily screwed on. The outer wall of the rivet 1 has a clamping groove 3, so that after the riveting nut 7 is screwed on, the riveting nut 7 has a clamping buckle matched with the clamping groove 3, so that the riveting nut 7 will not fall off or loosen due to long-term maintenance. After the riveting nut 7 at the bottom is fixed, the exposed rivet 1 at the top is covered with the top cover 4, and the top cover 4 is aligned with the fixed point through the fixing disc 5 around the top cover 4, and the first screw 6 in the fixing disc 5 is used to fix the top cover 4 and the fixing disc 5 on the fixed point, so as to achieve the effect of multiple fixing of the rivet 1.

[0029] When the fixed point has uneven plane, the traditional rigid connection is easy to cause rivet 1 fixed failure due to uneven contact stress. When the rivet nut 7 is screwed, the bottom plate 10 fixed at the top is synchronously displaced upward, driving the top plate 11 and the outer support sleeve 12 elastically connected with the bottom plate 10 through the spring 13 to slide along the outer wall of the rivet 1; the support sleeve 12 is made of nitrile rubber material, which can closely fit the irregular surface by virtue of high elastic deformation capacity, and its flexible contact characteristics avoid the local stress concentration caused by rigid support, and at the same time, the physical filling of the concave or convex surface of the base surface is formed, the spring 13 forms an elastic buffer layer between the bottom plate 10 and the top plate 11, when the support sleeve 12 contacts the uneven surface, the spring 13 is compressed or stretched due to the height difference of the surface, the reaction force pushes the support sleeve 12 to closely fit the plane with uniform pressure, forming a stable support base surface, and at the same time, the elastic force is transmitted to the rivet nut 7, promoting the engagement depth of the nut inner wall block and the rivet 1 clamping groove 3 to increase with the spring 13 reaction force, effectively inhibiting the micro displacement of the rivet nut 7 caused by surface vibration or load fluctuation.

[0030] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A ring groove rivet anti-loosening serrated ring groove structure comprising a rivet (1), characterized in that: The outer wall of the rivet (1) is provided with a threaded groove (2) and a clamping groove (3), the top of the rivet (1) is slidably connected with a top cover (4), the outer wall of the top cover (4) is fixedly connected with a fixed disc (5), the inner wall of the fixed disc (5) is threadedly connected with a plurality of first screws (6), the outer wall of the rivet (1) is threadedly connected with a riveting nut (7), the outer wall of the riveting nut (7) is fixedly connected with a plurality of fixed sleeves (8), the inner wall of the plurality of fixed sleeves (8) is provided with a second screw (9), and the outer wall of the riveting nut (7) is provided with a fixing assembly.

2. The snap ring swaged rivet anti-loosening crenulated snap ring structure of claim 1 wherein: The fixing assembly comprises a bottom disc (10) fixed to the outer wall of the riveting nut (7), the inner wall of the bottom disc (10) is fixedly connected with a top disc (11), the outer wall of the top disc (11) is fixedly connected with a supporting sleeve (12), and the outer wall of the supporting sleeve (12) is fixedly connected with a plurality of springs (13).

3. The snap-rivet anti-loosening serrated groove structure according to claim 1, characterized in that: The inner wall of the riveting nut (7) is provided with a clamping block corresponding to the threaded groove (2) and the clamping groove (3), and the clamping block is clamped in the inner wall of the clamping groove (3).

4. The snap-riveted anti-loosening serrated groove structure according to claim 1, characterized in that: A plurality of second screws (9) are threadedly connected to the inner wall of the riveting nut (7) and are slidably connected to the outer wall of the rivet (1).

5. The snap-rivet anti-loosening serrated channel structure of claim 2, wherein: The springs (13) are arranged on the side close to the supporting sleeve (12) and the bottom disc (10).

6. The snap ring swaged rivet anti-loosening crenulated snap ring structure of claim 2, wherein: The supporting sleeve (12) and the top disc (11) are made of nitrile rubber.

7. The snap-rivet anti-loosening serrated channel structure of claim 2, wherein: The supporting sleeve (12) and the top disc (11) are both slidably connected to the outer wall of the rivet (1).

8. The snap-riveted anti-loosening serrated groove structure according to claim 1, characterized in that: A plurality of first screws (6), second screws (9) and springs (13) are symmetrically installed.

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