一种防松球头螺栓
By designing an anti-loosening ball head bolt, and utilizing a combination structure of threaded post, protective component, spring, and limiting plate, the problem of loosening of traditional ball head bolts under vibration conditions is solved, achieving a highly reliable and stable connection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN XINZHOU HARDWARE CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional ball head bolts are prone to loosening or falling off under dynamic loads, impact loads, or continuous vibration. Existing auxiliary locking measures are insufficient to prevent loosening under high-frequency vibration and harsh conditions, making it difficult to meet the long-term use requirements of high-reliability connections.
A non-loosening ball head bolt was designed, which adopts an integrated structure of threaded post, protective component, polygonal block and ball head body. Combined with the design of spring and limit plate, the connection stability is enhanced by the elastic restoring force of spring and the friction of rubber pad, and the anti-loosening performance is enhanced by adjusting the spring preload by rotating the threaded rod.
It effectively prevents bolts from loosening due to vibration or external force, improves the stability and reliability of the connection, reduces installation difficulty, and enhances durability and anti-loosening ability.
Smart Images
Figure CN224515623U_ABST
Abstract
Claims
1. A lock ball stud comprising a threaded column (1), the upper surface of the threaded column (1) is provided with a protective piece (2), the upper surface of the protective piece (2) is provided with a polygonal block (3), the upper surface of the polygonal block (3) is provided with a ball head body (5), characterized in that, The threaded column (1), protective component (2), polygonal block (3), support column (4) and ball head body (5) are integrally formed. A threaded hole (6) penetrating the top and bottom is provided at the center position. The bottom of the threaded column (1) is provided with a movable groove (7) communicating with the threaded hole (6). The axis of the movable groove (7) is coaxial with the axis of the threaded hole (6). A threaded rod (8) is threadedly connected in the threaded hole (6). The bottom of the threaded rod (8) extends into the movable groove (7). A limiting plate (81) is provided at the bottom end of the threaded rod (8). A spring (9) is fixedly connected to the lower end face of the limiting plate (81). The other end of the spring (9) extends downward out of the movable groove (7).
2. A check ball head bolt according to claim 1, wherein The threaded rod (8) has a cross-shaped groove at the top center and the limiting plate (81) has a cross-shaped groove at the bottom center.
3. The lock ball stud of claim 1, wherein The protective component (2) is provided with an anti-slip pad (21) at one end of the threaded post (1). The lower end face of the anti-slip pad (21) is provided with a plurality of anti-slip teeth (22) arranged in a ring. The anti-slip pad (21) and the anti-slip teeth (22) are both made of rubber.
4. The lock ball stud of claim 1 wherein, Two slots (11) are symmetrically provided on the outer edge of the threaded post (1). The two slots (11) extend upward through the protective member (2) and the hexagonal block. Inserts (12) are inserted into both slots (11). A rubber pad (13) is fixedly connected to the outside of the insert (12). The rubber pad (13) protrudes slightly from the outside of the slot (11).
5. A check ball head bolt according to claim 4, wherein The cross-section of the rubber pad (13) is a right trapezoid, with its acute end located at the bottom and its inclined surface located on the side away from the plug (12).
6. A check ball head bolt according to claim 5, wherein The plug (12) has an L-shaped structure, and its lateral extension is located at the top of the plug (12).