High-performance fastener self-locking mechanism
By introducing an embedded groove and locking hook structure into the fastener, the problem of fastener loosening and falling off is solved, achieving a high-performance self-locking effect and ensuring that the nut does not fall off.
Patent Information
- Application Number
- CN202520491240.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing fasteners are prone to loosening and falling off during use, making it difficult to achieve effective self-locking.
A high-performance fastener self-locking mechanism was designed. By setting an embedded groove and a locking hook on the screw, the locking screw rotates in the threaded hole and squeezes the locking hook, causing it to protrude out of the limiting nut and prevent the nut from falling off.
This achieves a self-locking effect on the fastener, preventing the nut from falling off the outside of the screw and improving the stability and reliability of the fastener.
Smart Images
Figure CN223739853U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the fastener field, concretely is a high -performance fastener self -locking mechanism. BACKGROUND
[0002] Fastener mainly includes: bolt, stud, screw, nut, welding nail, pin and so on, the above-mentioned various components can be subdivided into various structural components according to the use.
[0003] But, except welding nail, most fasteners can be locked in positive direction and disassembled in reverse direction, so it is easy to loosen and fall off in use. CONTENT OF UTILITY MODEL
[0004] In view of the deficiency of prior art, the utility model provides a high -performance fastener self -locking mechanism, solves the problem mentioned in the above background.
[0005] The utility model provides following technical scheme: a high -performance fastener self -locking mechanism, including fastening bolt, the fastening bolt includes: screw rod, upper protrusion, the side surface of upper protrusion is equipped with threaded hole, one end of threaded hole is located in the inside of fastening bolt and is equipped with inlay groove, the outside of lower end of inlay groove is located in the outside of screw rod and is equipped with perforation, the inside of inlay groove is provided with locking hook rod, the rotatable shaft is connected between locking hook rod and fastening bolt, the inside of threaded hole is provided with locking screw rod.
[0006] As a further scheme of the utility model: the outside of screw rod is provided with nut, the outside of screw rod is equipped with gasket above nut, the side surface of gasket is equipped with friction protrusion.
[0007] As a further scheme of the utility model: the outside of screw rod is equipped with tooth.
[0008] As a further scheme of the utility model: locking hook rod is movably connected with fastening bolt through rotatable shaft, and locking hook rod is an L-shaped component.
[0009] As a further scheme of the utility model: threaded hole is rotatably connected with locking screw rod.
[0010] As a further scheme of the utility model: nut is rotatably connected with screw rod, and friction protrusion is fixedly connected with gasket.
[0011] As a further scheme of the utility model: the perforation and threaded hole are both provided with inlay groove.
[0012] As a further scheme of the utility model: the upper surface of upper protrusion is provided with cross slot.
[0013] Compared with the prior art, the utility model has the beneficial effects that:
[0014] The locking screw rotates in the threaded hole, and the end portion is extruded to the position of one end of the locking hook rod in the embedded groove, the locking hook rod rotates in the embedded groove through the rotating shaft, the lower end protruding portion of the locking hook rod is out of the inside of the threaded hole, the end portion protrusion of the locking hook rod is protruded below the nut for limiting and locking, and the nut cannot fall off from the outside of the screw rod. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a structural schematic view of a high-performance fastener self-locking mechanism;
[0016] Figure 2 It is an enlarged view of the upper protrusion in a high-performance fastener self-locking mechanism;
[0017] Figure 3 It is a sectional view of the upper protrusion in a high-performance fastener self-locking mechanism;
[0018] Figure 4 It is a bottom view of a fastening bolt in a high-performance fastener self-locking mechanism;
[0019] Figure 5 It is a front view of a fastening bolt in a high-performance fastener self-locking mechanism.
[0020] In the figure: 1, fastening bolt; 2, screw rod; 3, nut; 4, upper protrusion; 5, gasket; 6, locking screw; 7, threaded hole; 101, embedded groove; 102, locking hook rod; 103, rotating shaft; 201, tooth pattern; 202, threaded hole; 401, cross groove; 501, friction protrusion. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. 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 other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0022] For example, Figures 1-5As shown, the present embodiment provides a high-performance fastener self-locking mechanism, comprising a fastening bolt 1, the fastening bolt 1 comprising: a screw rod 2, an upper protrusion 4, a threaded hole 7 is formed in the side surface of the upper protrusion 4, one end of the threaded hole 7 is located inside the fastening bolt 1 and is provided with an embedded groove 101, a through hole 202 is formed in the outer side of the lower end of the embedded groove 101 and is located outside the screw rod 2, the through hole 202 and the threaded hole 7 are both provided through the embedded groove 101, a locking hook rod 102 is arranged inside the embedded groove 101, a rotating shaft 103 is connected between the locking hook rod 102 and the fastening bolt 1, the locking hook rod 102 is an L-shaped component, the locking hook rod 102 is movably connected to the fastening bolt 1 through the rotating shaft 103, and a locking screw 6 is arranged inside the threaded hole 7.
[0023] As shown, Figures 2-3 In the present embodiment, a nut 3 is arranged outside the screw rod 2, the nut 3 is movably connected with the screw rod 2, a gasket 5 is arranged above the nut 3 and outside the screw rod 2, a friction protrusion 501 is arranged on the side surface of the gasket 5, the friction protrusion 501 is fixedly connected with the gasket 5, a tooth 201 is arranged outside the screw rod 2, and a cross groove 401 is formed in the upper surface of the upper protrusion 4.
[0024] The working principle of the utility model is as follows: when assembling and using, the screw rod 2 of the fastening bolt 1 is inserted into the reserved hole of the workpiece to be assembled, different numbers of gaskets 5 are sleeved outside the screw rod 2 according to the thickness of the assembled part, then the nut 3 is placed on the other side of the workpiece and is engaged with the tooth 201 on the screw rod 2, the whole connection of the nut 3 and the screw rod 2 is completed, the locking screw 6 is placed inside the threaded hole 7 outside the upper protrusion 4, the locking screw 6 is rotated in the threaded hole 7 by applying a torque to the locking screw 6, the end of the locking hook rod 102 in the embedded groove 101 is pressed, the locking hook rod 102 is rotated in the embedded groove 101 through the rotating shaft 103, the lower end protrusion of the locking hook rod 102 is inserted into the through hole 202, the end protrusion of the locking hook rod 102 is located below the nut 3 and is limited and locked, and therefore the nut 3 cannot fall off the outside of the screw rod 2 under the limiting action of the locking hook rod 102 when a torque is applied to the cross groove 401.
[0025] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, and the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0026] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.
Claims
1. A high performance fastener self-locking mechanism comprising a fastening bolt (1), characterized in that, The fastening bolt (1) comprises a screw rod (2), an upper protrusion (4), a threaded hole (7) is arranged on the side surface of the upper protrusion (4), one end of the threaded hole (7) is internally provided with an embedded groove (101), the lower end of the embedded groove (101) is externally provided with a hole (202) on the outer side of the screw rod (2), the embedded groove (101) is internally provided with a locking hook rod (102), the locking hook rod (102) and the fastening bolt (1) are connected through an axis (103), and the threaded hole (7) is internally provided with a locking screw rod (6).
2. A high performance fastener self-locking mechanism according to claim 1, wherein, The outer side of the screw rod (2) is provided with a nut (3), the upper side of the nut (3) is externally provided with a gasket (5) on the outer side of the screw rod (2), and the side surface of the gasket (5) is provided with a friction protrusion (501).
3. A high performance fastener self-locking mechanism according to claim 1, wherein, The outer side of the screw rod (2) is provided with a tooth (201).
4. A high performance fastener self-locking mechanism according to claim 1, wherein, The locking hook rod (102) is movably connected with the fastening bolt (1) through the axis (103), and the locking hook rod (102) is an L-shaped component.
5. A high performance fastener self-locking mechanism according to claim 1, wherein, The threaded hole (7) is rotatably connected with the locking screw rod (6).
6. A high performance fastener self-locking mechanism according to claim 2, wherein, The nut (3) is rotatably connected with the screw rod (2), and the friction protrusion (501) is fixedly connected with the gasket (5).
7. A high performance fastener self-locking mechanism according to claim 1, wherein, The hole (202) and the threaded hole (7) are both provided through the embedded groove (101).
8. A high performance fastener self-locking mechanism according to claim 3, wherein, The upper surface of the upper protrusion (4) is provided with a cross groove (401).