Occlusion type anti-loosening nut for pedal
By employing a hexagonal ball plug in the bicycle pedal with an interlocking anti-loosening nut structure that engages with an arc-shaped positioning protrusion and groove, the problem of ball plug loosening and falling off is solved, achieving stability and durability of the pedal connection.
Patent Information
- Application Number
- CN202423254479.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-28
AI Technical Summary
The ball plugs at the connection between the bicycle pedal and the bottom bracket are prone to loosening and falling off due to friction.
The structure employs a hexagonal bead plug with an arc-shaped positioning protrusion and groove, creating an interlocking anti-loosening nut. The connecting claws and washers restrict the rotation and axial movement of the bead plug, ensuring a secure connection.
It effectively prevents the ball plug from falling off during use, ensuring the stability and durability of the foot pedal connection.
Smart Images
Figure CN223662318U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of bite type anti-loose nuts for pedal. BACKGROUND
[0002] The connecting structure of bicycle pedal mainly includes crank, middle shaft and five-way. Crank is connected with five-way and pedal, and is the key part of power transmission. Pedal is connected with middle shaft through crank, and middle shaft is installed in five-way, which is used to connect the rotating parts of left and right crank, to ensure that the tooth disc rotates freely on the frame and transmits the power of rider. In addition, the screw connection between pedal and crank can withstand high-intensity pedaling force, ensuring that it will not loosen under continuous pedaling.
[0003] However, in the prior art, the ball plug at the connection between pedal and middle shaft often falls off, because the ball plug rotates due to friction during the movement of pedal, thereby driving the gasket and nut to move through friction, resulting in loosening of the ball plug. SUMMARY
[0004] The utility model aims at solving the above problems in the prior art, and provides a bite type anti-loose nut for pedal.
[0005] A bite type anti-loose nut for pedal, comprising a mounting shaft, a ball plug, a nut and a gasket, the ball plug is hexagonal in structure and has a through hole in the center, the ball plug is sleeved on the mounting shaft and locked by the nut, the nut is threadedly connected with the mounting shaft, and the gasket is arranged between the nut and the ball plug, the gasket has a mounting hole in the center, the inner side wall of the mounting hole is provided with a plurality of positioning protrusions, the outer side wall of the mounting shaft is provided with corresponding positioning grooves, and the gasket and the ball plug are fixedly connected through a connecting structure.
[0006] Further, the connecting structure comprises a plurality of connecting claws, the connecting claws are installed on the outer side of the gasket and extend beyond the bottom surface of one side of the gasket, and the surface of the connecting claw is connected with the outer surface of the ball plug.
[0007] Further, the positioning protrusions and the positioning grooves are both arc-shaped structures.
[0008] Further, the number of the positioning protrusions and the positioning grooves is both two.
[0009] Further, the two positioning protrusions and the positioning grooves are oppositely arranged according to the axis.
[0010] Further, the number of the connecting claws is three.
[0011] Further, three connecting claws are equidistantly arranged outside the gasket.
[0012] Beneficial effects: compared with the prior art, the utility model discloses a gasket structure is changed, and its rotation movement relative to the mounting shaft is limited through the positioning groove and the positioning protrusion, then is connected with the hexagonal bead plug through the connecting claw, because the shape of the outside of the bead plug is the hexagonal structure, the contact between the outside surface and the connecting claw surface is plane contact, the relative movement trend between plane contact is linear motion, and the movement trend of the bead plug is circumferential rotation motion or axial linear motion, the axial linear motion is limited by the gasket and the nut, and the circumferential rotation motion is limited by the connecting claw, i.e. the rotation freedom degree and the axial freedom degree of the bead plug are limited, thereby guaranteeing that the bead plug does not fall off in the use process of the footboard. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a schematic diagram of a clamping type anti-loose nut for a footboard;
[0014] Figure 2 It is a schematic diagram of a gasket in the utility model;
[0015] Figure 3 It is a schematic diagram of a bead plug;
[0016] Figure 4 It is a schematic diagram of a footboard assembly in the prior art;
[0017] In the drawing, 1, bead plug, 2, gasket, 3, nut, 4, mounting shaft, 5, positioning protrusion, 6, connecting claw. DETAILED DESCRIPTION
[0018] In order to deepen the understanding of the utility model, the utility model will be further described in the following in conjunction with examples and drawings, and the examples are only used to explain the utility model and do not constitute the limitation to the protection scope of the utility model.
[0019] As shown in the drawing, Figures 1-3 Bead plug 1, gasket 2, nut 3, mounting shaft 4, positioning protrusion 5, connecting claw 6;
[0020] A clamping type anti-loose nut for a footboard, including mounting shaft 4, bead plug 1, nut 3, gasket 2, the bead plug 1 is hexagonal structure, and the center is equipped with through -hole, the bead plug 1 is sleeved on the mounting shaft 4, and is locked through the nut 3, the nut 3 is in threaded connection with the mounting shaft 4, and the gasket 2 is equipped between the nut 3 and the bead plug 1, the center of the gasket 2 is equipped with mounting hole, the inboard wall of the mounting hole is equipped with multiple positioning protrusions 5, the outer wall of the mounting shaft 4 is equipped with corresponding positioning groove, and the gasket 2 and the bead plug 1 are fixedly connected through the connecting structure.
[0021] In this example, the connection structure includes a plurality of connecting claws 6, which are mounted on the outside of the gasket 2 and extend beyond one side of the bottom surface of the gasket 2. The surface of the connecting claws 6 is connected to the outer surface of the bead plug 1.
[0022] In this example, both the positioning protrusion 5 and the positioning groove are arc-shaped structures.
[0023] In this example, there are two positioning protrusions 5 and two positioning grooves.
[0024] In this example, the two positioning protrusions 5 and the positioning groove are all set relative to each other according to the axis.
[0025] In this example, the number of connecting claws 6 is three.
[0026] In this example, the three connecting claws 6 are equidistantly spaced on the outside of the gasket 2.
[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A locking nut for foot pedals, characterized in that, The device includes a mounting shaft, a ball plug, a nut, and a washer. The ball plug has a hexagonal structure with a through hole in its center. The ball plug is fitted onto the mounting shaft and locked in place by the nut. The nut is threaded to the mounting shaft. A washer is placed between the nut and the ball plug. The washer has a mounting hole in its center. The inner wall of the mounting hole has multiple positioning protrusions. The outer wall of the mounting shaft has corresponding positioning grooves. The washer and the ball plug are fixedly connected by a connecting structure.
2. The locking nut for a foot pedal according to claim 1, characterized in that, The connection structure includes multiple connecting claws, which are installed on the outside of the gasket and extend beyond one side of the bottom surface of the gasket. The surface of the connecting claws is connected to the outer surface of the bead plug.
3. The locking nut for a foot pedal according to claim 1, characterized in that, Both the positioning protrusion and the positioning groove are arc-shaped structures.
4. The locking nut for a foot pedal according to claim 1, characterized in that, The number of positioning protrusions and positioning grooves is two.
5. A locking nut for a foot pedal according to claim 4, characterized in that, The two positioning protrusions and positioning grooves are all set relative to each other according to the axis.
6. A locking nut for a foot pedal according to claim 2, characterized in that, The number of connecting claws is three.
7. A locking nut for a foot pedal according to claim 6, characterized in that, The three connecting claws are equidistantly spaced on the outside of the gasket.