Lock washer with high strength hex nut

Abstract

The utility model discloses a high -strength hexagon nut of anti -loosening stop washer, including hexagonal nut, screw rod, the screw rod outside is equipped with the lantern ring, the both sides of screw rod are opened the inner stop groove, the lantern ring inboard fixedly connected with two groups of inner stop board, the inner stop board slidingly connected in the inner stop groove, the lantern ring outside lower part fixedly connected with the washer, the washer upper portion fixedly connected with the locking tooth, the lantern ring outside rotatoryly connected with the sliding ring, the sliding ring lower part one side fixedly connected with the gear ring of cooperation locking tooth, the sliding ring upper portion fixedly connected with the contact ring, the contact ring outside fixedly connected with six groups of outer stop board, the hexagonal nut inboard is equipped with six groups of outer stop groove, adapts different installation depth and angle demand, avoids the secondary installation of traditional stop board position fixed, and the adaptability and installation efficiency are greatly promoted.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, specifically to a high-strength hexagonal nut for preventing loosening of a stop washer. Background Technology

[0002] In various fastening scenarios requiring anti-loosening measures, the combination of locking washers and hexagonal nuts is a common solution. However, traditional locking washers and high-strength hexagonal nuts for anti-loosening have the following key technical defects, which limit their effectiveness:

[0003] The outer stop plate has a fixed position and poor adaptability: the traditional outer stop plate and washer are molded as one piece and the position cannot be adjusted. If the outer stop plate is not aligned with the outer stop groove after the hexagonal nut is tightened, it needs to be disassembled and reinstalled, which is cumbersome. There is no adjustment structure, so it cannot adapt to different installation depth and angle requirements. Utility Model Content

[0004] The purpose of this invention is to provide a high-strength hexagonal nut with a locking washer to prevent loosening, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-strength hexagonal nut for preventing loosening of the locking washer, comprising a hexagonal nut and a screw. A collar is sleeved on the outside of the screw, and inner locking grooves are formed on both sides of the screw. Two sets of inner locking plates are fixedly connected to the inside of the collar, and the inner locking plates are slidably connected inside the inner locking grooves. A washer is fixedly connected to the lower part of the outer side of the collar, and a locking tooth is fixedly connected to the upper part of the washer. A sliding ring is rotatably connected to the outer side of the collar. A toothed ring that engages with the locking tooth is fixedly connected to one side of the lower part of the sliding ring. A contact ring is fixedly connected to the upper part of the sliding ring, and six sets of outer locking plates are fixedly connected to the outside of the contact ring. Six sets of outer locking grooves are formed on the inside of the hexagonal nut.

[0006] Preferably, the inner side of the outer stop groove is provided with a first friction pattern, and the upper outer side of the outer stop plate is provided with a second friction pattern.

[0007] Preferably, the contact ring has four sets of first rotating grooves inside, the upper part of the collar is fixedly connected to four sets of support pads, the support pads are rotatably connected inside the first rotating grooves, the upper part of the washer is fixedly connected to four sets of support plates, the upper part of the support plates is fixedly connected to a limiting ring, the limiting ring is directly opposite the upper part of the toothed ring, the middle part of the contact ring has four sets of second rotating grooves, and the support plates and limiting rings are rotatably connected inside the second rotating grooves.

[0008] Preferably, a rubber pad is fixedly connected to the upper part of the support pad and the limiting ring.

[0009] Preferably, a connecting plate is fixedly connected to the lower outer side of the contact ring, a limiting groove is provided on the lower side of the connecting plate, a limiting ring is rotatably connected inside the limiting groove, and a spring is fixedly connected between the limiting ring and the washer.

[0010] Preferably, a positioning groove is provided on the lower outer side of the connecting plate, and a positioning ring is fixedly connected to the upper outer side of the washer, the positioning ring being rotatably connected inside the positioning groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model adjusts the position of the outer stop plate by lifting and rotating the sliding ring, which can align with the outer stop groove without disassembling the hexagonal nut. It adapts to different installation depth and angle requirements, avoids the secondary installation caused by the fixed position of the traditional stop plate, and greatly improves adaptability and installation efficiency.

[0013] 2. This utility model uses a spring to elastically press the top plate and the sliding ring together, a rubber pad to buffer vibration, and a positioning ring to limit radial displacement. Multiple structures work together to prevent the sliding ring from shaking up and down and shifting circumferentially. The friction texture further enhances the tightness of the fit, avoids relative sliding between the stop plate and the stop groove, and ensures long-term stability. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention;

[0016] Figure 3 This is a three-dimensional structural cross-sectional view of the present invention;

[0017] Figure 4 This is an enlarged view of the structure at point A of this utility model.

[0018] In the diagram: 1. Screw; 2. Collar; 3. Washer; 4. Locking tooth; 5. Sliding ring; 6. Toothed ring; 7. Contact ring; 8. Outer stop plate; 9. Inner stop groove; 10. Inner stop plate; 11. Hexagonal nut; 12. Outer stop groove; 13. First friction groove; 14. Second friction groove; 15. First rotation groove; 16. Support pad; 17. Support plate; 18. Limiting ring; 19. Second rotation groove; 20. Rubber pad; 21. Connecting plate; 22. Limiting groove; 23. Limiting ring; 24. Spring; 25. Positioning ring; 26. Positioning groove. Detailed Implementation

[0019] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a high-strength hexagonal nut for preventing loosening of the locking washer, including a hexagonal nut 11 and a screw 1. A collar 2 is sleeved on the outside of the screw 1. Two sets of inner locking grooves 9 are symmetrically opened on both sides of the screw 1. Two sets of inner locking plates 10 are fixedly connected to the inside of the collar 2 by welding. The inner locking plates 10 are slidably connected to the inside of the inner locking grooves 9 through clearance fit, realizing the circumferential positioning of the collar 2 and the hexagonal nut 11. A washer 3 is fixedly connected to the lower part of the outer side of the collar 2 by welding. Several sets of locking teeth 4 are evenly fixedly connected to the upper part along the circumference. A sliding ring 5 is rotatably connected to the outer side of the collar 2 through a deep groove ball bearing. A toothed ring 6 that matches the locking teeth 4 is fixedly connected to the lower side of the sliding ring 5 by welding. A contact ring 7 is fixedly connected to the upper part of the sliding ring 5 by welding. Six sets of outer stop plates 8 are evenly fixedly connected to the outer side of the contact ring 7 along the circumference by welding. Six sets of outer stop grooves 12 are evenly opened on the inner side of the hexagonal nut 11 along the circumference to accommodate the bent outer stop plates 8 and achieve locking and anti-loosening.

[0021] The outer stop groove 12 has a first friction groove 13 on its inner side, and the outer stop plate 8 has a second friction groove 14 on its upper outer side. The first friction groove 13 and the second friction groove 14 are fitted together to increase the friction force, prevent the outer stop plate 8 from sliding relative to the outer stop groove 12, and improve the reliability of the stop.

[0022] The contact ring 7 has four sets of first rotating grooves 15 evenly distributed around its circumference. The upper part of the collar 2 is fixedly connected to four sets of support pads 16 by welding. The support pads 16 are rotatably connected to the inside of the first rotating grooves 15 by deep groove ball bearings, providing support and rotation guidance for the contact ring 7. The upper part of the washer 3 is fixedly connected to four sets of support plates 17 by welding. The upper part of the support plates 17 is fixedly connected to a limit ring 18 by welding. The limit ring 18 is directly opposite the upper part of the toothed ring 6 to prevent the sliding ring 5 from disengaging from the collar 2. The middle part of the contact ring 7 has four sets of second rotating grooves 19. The support plates 17 and the limit rings 18 are rotatably connected to the inside of the second rotating grooves 19 by deep groove ball bearings, further improving the rotational stability of the contact ring 7 and expanding the support area.

[0023] A rubber pad 20 is fixedly connected to the upper part of the support pad 16 and the limiting ring 18 by adhesive bonding. The rubber pad 20 buffers the vibration and impact between the contact ring 7 and the support structure, while increasing the friction force to prevent the contact ring 7 from shaking up and down and improving the structural stability.

[0024] A connecting plate 21 is fixedly connected to the lower outer side of the contact ring 7 by welding. An annular limiting groove 22 is provided on the lower side of the connecting plate 21. A limiting ring 23 is rotatably connected inside the limiting groove 22 by a deep groove ball bearing. A spring 24 is fixedly connected between the limiting ring 23 and the washer 3 by spot welding. In normal condition, the spring 24 pushes the limiting ring 23 upward, causing the contact ring 7 and the sliding ring 5 to be pressed together, preventing up and down shaking, and ensuring that the toothed ring 6 does not disengage from the locking tooth 4.

[0025] An annular positioning groove 26 is provided on the lower outer side of the connecting plate 21. A positioning ring 25 is fixedly connected to the upper outer side of the washer 3 by welding. The positioning ring 25 is rotatably connected to the inside of the positioning groove 26 through clearance fit, which restricts the radial displacement of the connecting plate 21, ensures that the sliding ring 5 rotates coaxially with the collar 2, and avoids the position displacement of the outer stop plate 8.

[0026] Working principle: When using this utility model: the collar 2 is sleeved on the outside of the screw 1 to ensure that the inner stop plate 10 is inserted into the inner stop groove 9; the collar 2 is moved to the preset fastening position of the screw 1, and the washer 3 is attached to the surface of the connected parts to complete the initial positioning of the collar 2.

[0027] Tighten the hex nut 11 into the screw rod 1 through the inner thread until the hex nut 11 is close to the upper part of the collar 2, and complete the initial tightening; at this time, the support pad 16 and the limit ring 18 support the hex nut 11, the rubber pad 20 buffers and fits, and the sliding ring 5 is reserved for up and down adjustment space.

[0028] Pull the contact ring 7 upwards to stretch the spring 24, causing the sliding ring 5 and the toothed ring 6 to move upwards synchronously. The toothed ring 6 disengages from the locking tooth 4 of the washer 3. Rotate the contact ring 7, which causes the outer stop plate 8 to rotate synchronously until the outer stop plate 8 aligns with the outer stop groove 12 of the hexagonal nut 11. Release the contact ring 7, and the spring 24 returns to its elastic state. Pull the limiting ring 23 and the contact ring 7 downwards, and the toothed ring 6 re-engages with the locking tooth 4, locking the position of the outer stop plate 8. Manually bend the outer stop plate 8 so that it is embedded inside the outer stop groove 12. The second friction pattern 14 of the outer stop plate 8 and the first friction pattern 13 of the outer stop groove 12 fit tightly together, forming a double stop to prevent the hexagonal nut 11 from loosening.

[0029] When the equipment is running, the spring 24 pulls the contact ring 7, and the rubber pad 20 buffers the vibration, preventing the sliding ring 5 from shaking up and down and ensuring a stable stopping effect.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength hexagonal nut for preventing loosening of locking washers, comprising a hexagonal nut (11) and a screw (1), characterized in that: A collar (2) is sleeved on the outside of the screw (1). Inner stop grooves (9) are opened on both sides of the screw (1). Two sets of inner stop plates (10) are fixedly connected to the inside of the collar (2). The inner stop plates (10) are slidably connected to the inside of the inner stop grooves (9). A washer (3) is fixedly connected to the lower part of the outer side of the collar (2). A locking tooth (4) is fixedly connected to the upper part of the washer (3). A sliding ring (5) is rotatably connected to the outer side of the collar (2). A toothed ring (6) that matches the locking tooth (4) is fixedly connected to the lower side of the sliding ring (5). A contact ring (7) is fixedly connected to the upper part of the sliding ring (5). Six sets of outer stop plates (8) are fixedly connected to the outer side of the contact ring (7). Six sets of outer stop grooves (12) are opened on the inner side of the hexagonal nut (11).

2. The anti-loosening high-strength hexagonal nut with a locking washer according to claim 1, characterized in that: The outer stop groove (12) has a first friction groove (13) on its inner side, and the outer stop plate (8) has a second friction groove (14) on its upper outer side.

3. The anti-loosening high-strength hexagonal nut with a locking washer according to claim 1, characterized in that: The contact ring (7) has four sets of first rotating grooves (15) inside. The upper part of the collar (2) is fixedly connected to four sets of support pads (16). The support pads (16) are rotatably connected inside the first rotating grooves (15). The upper part of the washer (3) is fixedly connected to four sets of support plates (17). The upper part of the support plate (17) is fixedly connected to a limiting ring (18). The limiting ring (18) is directly opposite the upper part of the toothed ring (6). The middle part of the contact ring (7) has four sets of second rotating grooves (19). The support plate (17) and the limiting ring (18) are rotatably connected inside the second rotating grooves (19).

4. The anti-loosening high-strength hexagonal nut with a locking washer according to claim 3, characterized in that: A rubber pad (20) is fixedly connected to the upper part of the support pad (16) and the limiting ring (18).

5. The anti-loosening high-strength hexagonal nut with a locking washer according to claim 1, characterized in that: A connecting plate (21) is fixedly connected to the lower outer side of the contact ring (7). A limiting groove (22) is provided on the lower side of the connecting plate (21). A limiting ring (23) is rotatably connected inside the limiting groove (22). A spring (24) is fixedly connected between the limiting ring (23) and the washer (3).

6. The anti-loosening high-strength hexagonal nut with a locking washer according to claim 5, characterized in that: The lower outer side of the connecting plate (21) is provided with a positioning groove (26), and the upper outer side of the washer (3) is fixedly connected with a positioning ring (25), which is rotatably connected to the inside of the positioning groove (26).

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