Anti-loosening mechanism for fastener
By introducing auxiliary anti-loosening components into the fastener, the contact area between the fastener and the surface of the connecting member is enhanced, and the problem of the fastener being loose due to vibration or external force is solved, and a more stable connection is achieved.
Patent Information
- Application Number
- CN202422501701.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-10-16
AI Technical Summary
Existing fasteners are prone to loosening in threaded connections due to vibration or external forces.
Auxiliary anti-loosening components are adopted, including fixing rods, pressing balls, limit rings, fixing rings and springs, to increase the contact area between the fastener and the surface of the connecting member and increase friction.
Effectively prevent the fastener from loosening under vibration or external force, and enhance the stability of the connection.
Smart Images
Figure CN223089755U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fasteners, in particular to an anti-loosening mechanism for fasteners. Background Art
[0002] Fasteners are a general term for a class of mechanical parts used to firmly connect two or more parts (or components) into a whole.
[0003] Mostly, the threaded connection method is used to fix two workpieces. By rotating the fastener, the threaded groove and the threaded ring are threadedly connected to prevent the separation between the fastener and the workpiece. After the fastener thread is screwed into the object, relying only on a single thread, it is easy to loosen under the influence of external factors such as vibration and impact. Content of the Utility Model
[0004] The purpose of the utility model is to solve the deficiencies in the prior art and propose an anti-loosening mechanism for fasteners.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme:
[0006] An anti-loosening mechanism for fasteners includes a fastener body. An auxiliary anti-loosening component is arranged inside the fastener body. The auxiliary anti-loosening component includes a fixed rod and a pressing ball. An extension convex ring is fixedly sleeved at the bottom of the outer part of the fixed rod. Two limiting rings are fixedly sleeved on the upper part of the outer wall of the fixed rod at equal intervals. A fixed ring is fixedly sleeved at the top of the outer wall of the fixed rod, and a pressing block is fixedly connected to the top end of the fixed ring.
[0007] A limiting sliding groove is opened at the position of the limiting ring inside the fastener body. A plurality of sliding groove through holes are opened at equal intervals outside the limiting sliding groove inside the fastener body, and a pressing ball is arranged in the sliding groove through hole. An activity cavity is opened at the position of the fixed ring inside the fastener body, and a spring is sleeved on the outer wall of the fixed rod in the activity cavity.
[0008] In addition, the preferred structure is that a clamping groove is opened at the middle and upper part of the outer wall of the limiting ring, and the connection part between the outer wall of the limiting ring and the clamping groove is set as an inclined surface.
[0009] In addition, the preferred structure is that one side of the spring is connected to the fixed ring, and the other side of the spring is connected to the activity cavity.
[0010] In addition, the preferred structure is that a pressing through hole is opened at the top of the fastener body at the position of the pressing block, and the diameter of the pressing through hole is larger than the diameter of the pressing block.
[0011] In addition, a preferred structure is that a clamping groove is formed at the bottom of the fastener body at the extension convex ring, and the diameter of the clamping groove is the same as that of the extension convex ring.
[0012] In addition, a preferred structure is that the diameter of the chute through hole gradually decreases from the side close to the limit chute to the side close to the fastener body, and the diameter of the chute through hole on the side close to the fastener body is smaller than the diameter of the pressing ball.
[0013] The beneficial effects of the present utility model are as follows:
[0014] In the present utility model, when the fastener body is screwed into an object and tightened, through the setting of the auxiliary anti-loosening assembly, the contact area between the fastener body and the surface of the connecting piece is increased, the friction force between the fastener body and the surface of the connecting piece is improved, and it helps to prevent the screw from loosening under vibration or external force. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 FIG. is a schematic structural diagram of an anti-loosening mechanism for a fastener proposed by the present utility model;
[0016] Figure 2 FIG. is a schematic cross-sectional structure diagram of an anti-loosening mechanism for a fastener proposed by the present utility model Figure 1 ;
[0017] Figure 3 FIG. is a schematic cross-sectional structure diagram of an anti-loosening mechanism for a fastener proposed by the present utility model Figure 2 ;
[0018] Figure 4 FIG. is an enlarged structural diagram at A;
[0019] Figure 5 FIG. is an enlarged structural diagram at B.
[0020] In the figure: 1, fastener body; 2, auxiliary anti-loosening assembly; 21, fixed rod; 22, extension convex ring; 23, limit ring; 24, clamping groove; 25, fixed ring; 26, spring; 27, pressing block; 3, pressing ball. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] Hereinafter, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0022] Refer to Figures 1-5, A loosening prevention mechanism for a fastener, including a fastener body 1, an auxiliary loosening component 2 is arranged inside the fastener body 1. The auxiliary loosening component 2 includes a fixing rod 21 and a pressing ball 3. An extension convex ring 22 is fixedly sleeved at the bottom outside the fixing rod 21. Two limiting rings 23 are fixedly sleeved at equal intervals above the outer wall of the fixing rod 21. A fixing ring 25 is fixedly sleeved at the top of the outer wall of the fixing rod 21, and a pressing block 27 is fixedly connected to the top end of the fixing ring 25;
[0023] And, a limiting chute is opened at the position of the limiting ring 23 inside the fastener body 1. A plurality of chute through holes are opened at equal intervals outside the limiting chute inside the fastener body 1. The pressing ball 3 is arranged inside the chute through hole. An activity cavity is opened at the position of the fixing ring 25 inside the fastener body 1. A spring 26 is sleeved on the outer wall of the fixing rod 21 inside the activity cavity.
[0024] At the same time, a clamping groove 24 is opened at the middle upper part of the outer wall of the limiting ring 23, and the connection part between the outer wall of the limiting ring 23 and the clamping groove 24 is set as an inclined surface.
[0025] And, one side of the spring 26 is connected to the fixing ring 25, and the other side of the spring 26 is connected to the activity cavity.
[0026] At the same time, a pressing through hole is opened at the top of the fastener body 1 at the position of the pressing block 27, and the diameter of the pressing through hole is larger than the diameter of the pressing block 27.
[0027] Furthermore, a clamping groove is opened at the bottom of the fastener body 1 at the position of the extension convex ring 22, and the diameter of the clamping groove is the same as the diameter of the extension convex ring 22.
[0028] Furthermore, the diameter of the chute through hole on the side close to the limiting chute gradually decreases towards the side close to the fastener body 1. The diameter of the chute through hole on the side close to the fastener body 1 is smaller than the diameter of the pressing ball 3, and a rubber cushion layer is arranged on the outer wall of the pressing ball 3.
[0029] It should be noted that when the fastener body 1 is placed vertically, when the spring 26 is in its original state, the spring 26 makes the top of its fixing ring 25 fit with the top of the activity cavity, and the pressing block 27 is located inside the pressing through hole. The top of the limiting ring 23 fits with the top of the limiting chute, and the outer wall of the limiting ring 23 fits with the pressing ball 3, so that a part of the pressing ball 3 extends out of the fastener body 1, and the extension convex ring 22 is located inside the clamping groove.
[0030] When pressing the pressing block 27, the fixing rod 21 moves downward, driving its fixing ring 25 to move downward. At this time, the spring 26 is in a deformed state, and it makes the limiting ring 23 move downward. The limiting ring 23 loses the pressure on the pressing ball 3, and the pressing ball 3 moves into the clamping groove 24, and the pressing ball 3 is located inside the chute through hole.
[0031] In this embodiment, before the fastener body 1 is screwed into an object, when the pressing block 27 is pressed, the fixing rod 21 moves downward, driving its fixing ring 25 to move downward and its limiting ring 23 to move downward. The limiting ring 23 loses the pressing force on the pressing ball 3, and the pressing ball 3 moves into the clamping groove 24 and is located in the through hole of the sliding groove.
[0032] When the fastener body 1 is screwed into the object and tightened, by releasing the pressing block 27, when the spring 26 is in its original state, the spring 26 makes the top of the fixing ring 25 fit with the top of the movable cavity, and the pressing block 27 is located in the pressing through hole. The top of the limiting ring 23 fits with the top of the limiting sliding groove, and the outer wall of the limiting ring 23 fits with the pressing ball 3, so that a part of the pressing ball 3 extends out of the fastener body 1, and the extending convex ring 22 is located in the clamping groove. Then, through the pressing ball 3, the contact area between the fastener body 1 and the surface of the connecting member is increased, and the friction force between the fastener body 1 and the surface of the connecting member is improved, which helps to prevent the screw from loosening under vibration or external force.
[0033] In this utility model, when the fastener body 1 is screwed into the object and tightened, through the setting of the auxiliary anti-loosening assembly 2, the contact area between the fastener body 1 and the surface of the connecting member is increased, and the friction force between the fastener body 1 and the surface of the connecting member is improved, which helps to prevent the screw from loosening under vibration or external force.
[0034] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.
Claims
1. An anti-loosening mechanism for a fastener, comprising a fastener body (1), characterized in that, An auxiliary relaxation moving component (2) is arranged inside the fastener body (1). The auxiliary relaxation moving component (2) includes a fixed rod (21) and a pressing roller ball (3). An extension convex ring (22) is fixedly sleeved at the bottom outside the fixed rod (21). Two limiting rings (23) are fixedly sleeved on the upper part of the outer wall of the fixed rod (21) at equal intervals. A fixed ring (25) is fixedly sleeved at the top of the outer wall of the fixed rod (21), and a pressing block (27) is fixedly connected to the top end of the fixed ring (25). A limiting sliding groove is opened at the position of the limiting ring (23) inside the fastener body (1). A plurality of sliding groove through holes are opened at equal intervals outside the limiting sliding groove inside the fastener body (1), and a pressing roller ball (3) is arranged in the sliding groove through holes. An activity cavity is opened at the position of the fixed ring (25) inside the fastener body (1), and a spring (26) is sleeved on the outer wall of the fixed rod (21) in the activity cavity.
2. The anti-loosening mechanism for fasteners according to claim 1, characterized in that, A clamping groove (24) is opened in the middle and upper part of the outer wall of the limiting ring (23), and the connection part between the outer wall of the limiting ring (23) and the clamping groove (24) is an inclined surface.
3. The anti-loosening mechanism for fasteners according to claim 1, characterized in that, One side of the spring (26) is connected to the fixed ring (25), and the other side of the spring (26) is connected to the activity cavity.
4. A loosening prevention mechanism for a fastener according to claim 1, characterized in that, A pressing through hole is opened at the top of the fastener body (1) at the position of the pressing block (27), and the diameter of the pressing through hole is larger than the diameter of the pressing block (27).
5. The anti-loosening mechanism for a fastener according to claim 1, wherein A clamping groove is opened at the bottom of the fastener body (1) at the position of the extension convex ring (22), and the diameter of the clamping groove is the same as the diameter of the extension convex ring (22).
6. A loosening prevention mechanism for a fastener according to claim 1, characterized in that, The diameter of the sliding groove through hole gradually decreases from the side close to the limiting sliding groove to the side close to the fastener body (1), and the diameter of the side of the sliding groove through hole close to the fastener body (1) is smaller than the diameter of the pressing roller ball (3).