Novel fastening locknut

Abstract

The utility model discloses a novel fastening locknut which comprises a fastening bolt and a locknut body sleeved on the fastening bolt in a threaded mode, the upper end of the locknut body is connected with a locking mechanism, and the locking mechanism comprises a fixing sleeve, an annular plate, a plurality of reeds, a locking sleeve and a locking ring. The locking device has the advantages that the locking mechanism is connected to the upper end of the locknut, after the locknut is installed, the locking sleeve is screwed in a suspended mode, the inner conical surface of the inner bottom of the locking sleeve presses the outer conical surfaces of the tops of the reeds, and therefore the reeds tightly hold the fastening bolt, and the locking purpose is achieved; and the inner surfaces of the tops of the reeds are respectively provided with anti-skid grains, so that the friction force can be increased, and falling is prevented.

Description

Technical Field

[0001] This utility model relates to the field of anti-loosening nut technology, specifically a new type of fastening anti-loosening nut. Background Technology

[0002] A lock nut is a type of nut that is screwed together with a bolt or screw to provide a fastening function. It is an essential component in all manufacturing machinery. Lock nuts are parts that tightly connect mechanical equipment. They can only be connected together by lock nuts and screws of the same specifications through their internal threads.

[0003] An existing patent application (CN202221325630.2) discloses a combined anti-loosening nut with an automatic tightening and adjustment function. When the limiting nut moves the pressure ring downwards, it contacts the protrusion on the nut body, causing the inner wall of the pressure ring to fit against the protrusion. At this point, the guide rod is pushed inwards and abuts against the stud surface to achieve tightening and limiting. However, by using a guide rod on the protrusion at the upper end of the nut body, in actual installation, the guide rod affects the downward suspension of the limiting nut, causing the guide rod to be unable to effectively tighten and limit the nut body, thus affecting the anti-loosening effect of the nut.

[0004] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0005] To address the above deficiencies, this utility model provides a novel fastening and anti-loosening nut to solve the problem of nut loosening.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A novel locking nut includes a fastening bolt and a locking nut threaded onto the fastening bolt, wherein the upper end of the locking nut is connected to a locking mechanism.

[0008] The locking mechanism includes a fixed sleeve, an annular plate, several springs, a locking sleeve, and a locking ring. The fixed sleeve is connected to the upper end of the anti-loosening nut. The annular plate is fixedly installed at the bottom of the fixed sleeve. Several springs are evenly installed at the upper end of the annular plate. The locking sleeve is suspended at the upper end of the fixed sleeve. The locking ring is connected to the upper end of the locking sleeve.

[0009] Furthermore, a groove is provided inside the fixing sleeve.

[0010] Furthermore, the annular plate has a through hole one corresponding to the fastening bolt at its center, and the locking sleeve has a through hole two corresponding to the fastening bolt at its center, with the diameters of the through hole one and the through hole two being larger than the diameter of the fastening bolt, respectively.

[0011] Furthermore, the inner surface of the top of the fixing sleeve is tapped with an internal thread, and the outer surface of the bottom of the locking sleeve is tapped with a corresponding external thread.

[0012] Furthermore, the outer surface of the top of several springs is provided with an outer conical surface, and the inner surface of the bottom of the locking sleeve is provided with a corresponding inner conical surface.

[0013] Furthermore, anti-slip textures are provided on the inner surface of the top of several reeds.

[0014] This utility model provides a novel anti-loosening nut with the following advantages: a locking mechanism is connected to the upper end of the anti-loosening nut; after the anti-loosening nut is installed, the locking sleeve is tightened, causing the inner conical surface at the bottom of the locking sleeve to press against the outer conical surface at the top of several springs, thereby causing the springs to hold the fastening bolt tightly to achieve the purpose of preventing loosening; and the inner surface of the top of several springs is provided with anti-slip texture to increase friction and prevent them from falling off. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a novel fastening and anti-loosening nut according to the present invention.

[0016] Figure 2 This utility model Figure 1 Enlarged view of a portion of point A in the middle.

[0017] Figure 3 This is a cross-sectional view of the fixing sleeve described in this utility model.

[0018] Figure 4 This is a cross-sectional view of the annular plate described in this utility model.

[0019] Figure 5 This is a top view of the annular plate described in this utility model.

[0020] Figure 6 This is a cross-sectional view of the locking sleeve described in this utility model.

[0021] In the diagram: 1. Fastening bolt; 2. Anti-loosening nut; 3. Fixing sleeve; 4. Ring plate; 5. Spring; 6. Locking sleeve; 7. Locking ring; 8. Groove; 9. Through hole one; 10. Through hole two; 11. Internal thread; 12. External thread; 13. External conical surface; 14. Internal conical surface; 15. Anti-slip texture. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-6As shown: A novel locking nut includes a fastening bolt 1 and a locking nut 2 threaded onto the fastening bolt 1. A locking mechanism is connected to the upper end of the locking nut 2. The locking mechanism includes a fixing sleeve 3, an annular plate 4, several spring plates 5, a locking sleeve 6, and a locking ring 7. The fixing sleeve 3 is connected to the upper end of the locking nut 2. The annular plate 4 is fixedly installed inside the bottom of the fixing sleeve 3. Several spring plates 5 are evenly installed on the upper end of the annular plate 4. The locking sleeve 6 is suspended above the upper end of the fixing sleeve 3. The locking ring 7 is connected to the upper end of the locking sleeve 6. A recess is provided inside the fixing sleeve 3. Groove 8; The annular plate 4 has a through hole 9 at its center corresponding to the fastening bolt 1, and the locking sleeve 6 has a through hole 10 at its center corresponding to the fastening bolt 1, and the diameters of the through hole 9 and the through hole 10 are larger than the diameter of the fastening bolt 1; The inner surface of the top of the fixing sleeve 3 is tapped with an internal thread 11, and the outer surface of the bottom of the locking sleeve 6 is tapped with a corresponding external thread 12; The outer surface of the top of several springs 5 ​​is provided with an external conical surface 13, and the inner surface of the bottom of the locking sleeve 6 is provided with a corresponding internal conical surface 14; The inner surface of the top of several springs 5 ​​is provided with anti-slip texture 15.

[0023] The working principle of this implementation scheme is as follows: the fastening bolt 1 and the anti-loosening nut 2 are both made of No. 45 steel, which has good strength;

[0024] When locked: the fixing sleeve 3 is connected to the upper end of the anti-loosening nut 2, the annular plate 4 is fixedly installed at the bottom of the fixing sleeve 3, several springs 5 ​​are evenly installed on the upper end of the annular plate 4, the locking sleeve 6 is suspended on the upper end of the fixing sleeve 3, the locking ring 7 is connected to the upper end of the locking sleeve 6, the inner surface of the top of the fixing sleeve 3 is tapped with internal threads 11, the outer surface of the bottom of the locking sleeve 6 is tapped with corresponding external threads 12, the outer surface of the top of several springs 5 ​​is respectively provided with an outer conical surface 13, the inner surface of the bottom of the locking sleeve 6 is provided with a corresponding inner conical surface 14, the inner surface of the top of several springs 5 ​​is respectively provided with anti-slip textures 15, and the center of the locking sleeve 6 has a through hole 2 10 corresponding to the fastening bolt 1, and the diameters of the first through hole 9 and the second through hole 10 are respectively larger than the diameter of the fastening bolt 1. Figure 3 — Figure 6 As shown;

[0025] Several springs 5 ​​are initially in an "open" state. During installation, the anti-loosening nut 2 is first suspended on the fastening bolt 1. The fixing sleeve 3 has a groove 8. The annular plate 4 has a through hole 9 corresponding to the fastening bolt 1 at its center. The locking sleeve 6 has a through hole 10 corresponding to the fastening bolt 1 at its center. The diameters of the through holes 9 and 10 are larger than the diameter of the fastening bolt 1, so that the fastening bolt 1 can pass through the fixing sleeve 3 and the annular plate 4 respectively. Then, the locking sleeve 6 is suspended and screwed into the top of the fixing sleeve 3 through the internal thread 11. During the suspension and screwing process, the inner conical surface 14 at the bottom of the locking sleeve 6 presses the outer conical surface 13 at the top of several springs 5, so that several springs 5 ​​"close" and hold the fastening bolt 1 to achieve the purpose of anti-loosening. The inner surface of the top of several springs 5 ​​is provided with anti-slip texture 15, which can be used to increase friction and prevent them from falling off.

[0026] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A novel locking nut, comprising a fastening bolt (1) and a locking nut (2) threaded onto the fastening bolt (1), characterized in that, The upper end of the anti-loosening nut (2) is connected to a locking mechanism; The locking mechanism includes a fixed sleeve (3), an annular plate (4), several springs (5), a locking sleeve (6), and a locking ring (7). The fixed sleeve (3) is connected to the upper end of the anti-loosening nut (2). The annular plate (4) is fixedly installed at the bottom of the fixed sleeve (3). Several springs (5) are evenly installed on the upper end of the annular plate (4). The locking sleeve (6) is suspended on the upper end of the fixed sleeve (3). The locking ring (7) is connected to the upper end of the locking sleeve (6).

2. The novel fastening and anti-loosening nut according to claim 1, characterized in that, The fixing sleeve (3) is provided with a groove (8).

3. The novel fastening and anti-loosening nut according to claim 1, characterized in that, The annular plate (4) has a through hole 1 (9) at its center, corresponding to the fastening bolt (1), and the locking sleeve (6) has a through hole 2 (10) at its center, corresponding to the fastening bolt (1). The diameters of the through hole 1 (9) and the through hole 2 (10) are larger than the diameter of the fastening bolt (1).

4. A novel fastening and anti-loosening nut according to claim 1, characterized in that, The top inner surface of the fixed sleeve (3) is tapped with an internal thread (11), and the bottom outer surface of the locking sleeve (6) is tapped with a corresponding external thread (12).

5. A novel fastening and anti-loosening nut according to claim 1, characterized in that, Several springs (5) have an outer conical surface (13) on their top outer surface, and a corresponding inner conical surface (14) is provided on the bottom inner surface of the locking sleeve (6).

6. A novel fastening and anti-loosening nut according to claim 1, characterized in that, Several reeds (5) have anti-slip textures (15) on their top inner surfaces.

Images