Error correction pedal shaft

Abstract

The present invention proposes a correction pedal shaft core which has a simple structure and low production cost and can prevent the left and right pedals from being installed incorrectly and prevent the pedals and cranks from being damaged. The shaft core body includes a shaft core body on which a thread corresponding to an external crank is provided, and a coupling structure which can be coupled to an external pedal is provided on the bottom surface of one side of the shaft core body.

Description

Technical Field

[0001] The invention relates to the technical field of fitness machinery, in particular to an error-correcting pedal shaft core. Background Art

[0002] Existing bicycles, fitness scooters, and spinning bikes have left and right pedals. Because the pedals are connected to the cranks through threads, in order to avoid the pedals being screwed out of the cranks when people are pedaling, causing danger, the left pedal is connected to the left crank through a forward thread, and the right pedal is connected to the right crank through a reverse thread. This arrangement ensures that the pedals are tightened more and more during use to avoid falling off. In daily production and transportation, in order to avoid damage to the left and right pedals and cranks caused by collisions during transportation, the pedals and cranks are usually separated during transportation, and then installed by the user after they are in the hands of the user. Because the forward and reverse threads of the left and right pedals are set oppositely, the user may make a mistake during installation, resulting in the left pedal with a forward thread being installed into the right crank with a reverse thread, resulting in damage to the pedals and cranks. Summary of the invention

[0003] Therefore, in view of the above-mentioned problems, the present invention proposes a correction pedal shaft core which has a simple structure, low production cost, and can prevent the left and right pedals from being installed incorrectly and prevent the pedals and cranks from being damaged.

[0004] To solve the above technical problems, the solution adopted by the present invention is: a correction pedal axle core, comprising an axle core body, the axle core body is provided with a thread corresponding to the external crank, and a coupling structure that can be coupled with an external pedal is provided on the bottom surface of one side of the axle core body.

[0005] Further improvement is: the coupling structure is Snap-on column , the axis center line of the engaging column is parallel to the axis center line of the shaft core body.

[0006] A further improvement is that: the coupling structure is a snap-fitting notch, and the axis of the snap-fitting notch is parallel to the axis of the axis body.

[0007] A further improvement is that a retaining ring is fixedly provided on the other side of the shaft core body, and the retaining ring can resist the side surface of the external crank.

[0008] A further improvement is that the bottom surface of the shaft core body provided with the coupling structure is a plane that can fit with the contact surface of the external pedal.

[0009] By adopting the above-mentioned technical scheme, the beneficial effects of the present invention are: 1. It can effectively prevent the left pedal and the right pedal from being installed incorrectly; 2. It can smoothly guide the pedal to be screwed into the crank to avoid the pedal being installed at an angle, which may cause damage to the thread; 3. It can facilitate customers to install the pedal themselves. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the error correction pedal shaft core according to the first embodiment of the present invention.

[0011] Figure 2 It is a side view of the axis core of the error correction pedal according to the first embodiment of the present invention.

[0012] Figure 3 Schematic diagram of the error correction pedal shaft core according to the first embodiment of the present invention.

[0013] Figure 4 It is a schematic diagram of the installation of the error correction pedal shaft core according to the first embodiment of the present invention.

[0014] Figure 5 It is a schematic diagram of the installation of the error correction pedal shaft core according to the second embodiment of the present invention. DETAILED DESCRIPTION

[0015] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0016] Embodiment 1:

[0017] refer to Figures 1 to 4 The embodiment of the present invention discloses a correction pedal shaft core, wherein a correction pedal shaft core is screwed into the pedal mounting threaded hole of the left crank 04L and the right crank 04R of the spinning bike respectively, and the two correction pedal shaft cores are the left correction pedal shaft core 1D and the right correction pedal shaft core 1C respectively, and the correction pedal shaft core comprises a shaft core body 1, and a forward thread 12 corresponding to the left crank 04L is provided on the shaft core body 1 of the left correction pedal shaft core 1D, and a reverse thread 12 corresponding to the right crank 04R is provided on the shaft core body 1 of the right correction pedal shaft core 1C, and a straight-line engaging column 11 is provided on the outward bottom surface of the shaft core body 1 of the left correction pedal shaft core 1D, and the A triangular column 11C is arranged on the outward bottom surface of the shaft core body 1 of the right error correction pedal shaft core 1C, and the left pedal 1A is provided with an I-shaped slot 11A for the I-shaped snap-fit ​​column 11 to be inserted into, and the left pedal 1A can be coupled with the left error correction pedal shaft core 1D by inserting the I-shaped snap-fit ​​column 11 into the I-shaped slot 11A, and the right pedal 1B is provided with a triangular slot 11B for the triangular column 11C to be inserted into, and the right pedal 1B can be coupled with the right error correction pedal shaft core 1C by inserting the triangular column 11C into the triangular slot 11B, the I-shaped snap-fit ​​column 11 cannot be inserted into the triangular slot 11B, and the triangular column 11C cannot be inserted into the I-shaped slot 11A.

[0018] In order to facilitate customers to couple the left pedal 1A with the left correction pedal shaft 1D and the right correction pedal shaft 1C, the center axis of the I-shaped locking column 11 overlaps with the center axis of the shaft body 1 of the left correction pedal shaft 1D, and the center axis of the triangular column 11C overlaps with the center axis of the shaft body 1 of the right correction pedal shaft 1C.

[0019] In order to prevent the customer from rotating the pedal in the wrong direction when installing it, a retaining ring 13 is fixedly provided on the other side of the shaft core body 1, and the retaining ring 13 can resist the side of the crank. When the pedal is coupled to the shaft core body 1, the customer rotates it in the wrong direction, and the retaining ring 13 resists the side of the crank. The customer cannot continue to rotate the pedal and finds that the rotation direction is wrong. At this time, the pedal can be correctly screwed into the crank by rotating in the reverse direction. After the pedal is screwed into the crank, the shaft core body 1 is separated from the crank.

[0020] In order to prevent the center axis of the pedal from being tilted toward the center axis of the crank threaded hole when the pedal is installed, which would cause damage to the threads of the pedal and the crank threaded hole, the outward bottom surface of the shaft core body 1 is a plane that can fit with the contact surface of the pedal. When the shaft core body 1 is coupled to the pedal, the outward bottom surface of the shaft core body 1 fits with the contact surface of the pedal, ensuring that the center axis of the pedal overlaps with the center axis of the crank threaded hole, making it convenient for the customer to screw the pedal into the threaded hole.

[0021] Based on the above-mentioned scheme, the locking slot can be a triangular slot, a plum blossom slot, a cross slot or a hexagonal slot, the axis of which is parallel to the axis of the axis body, and the pedal is provided with a triangular column, a plum blossom column, a cross column or a hexagonal column that matches the triangular slot, the plum blossom slot, the cross slot or the hexagonal slot.

[0022] Embodiment 2:

[0023] Based on the above scheme, reference Figure 5 The error correction pedal shaft core can also be used on a fitness scooter. The error correction pedal shaft core is pre-installed on the left and right cranks 04 of the fitness scooter. The installation shaft 02 of the fitness scooter cooperates with the error correction pedal shaft core 1M to avoid left and right incorrect installation of the installation shaft.

[0024] Based on the above scheme, the error-correcting pedal shaft core can also be applied to bicycles.

[0025] The modifications and changes made using this creation are all within the patent scope claimed by this creation, and are not limited to those disclosed in the embodiments.

Claims

1. The error correction pedal shaft core is characterized by: The shaft core body comprises a shaft core body, the shaft core body is provided with a thread corresponding to an external crank, a coupling structure coupled with an external pedal is provided on the bottom surface of one side of the shaft core body; the coupling structure is a clamping column, the axis of the clamping column is parallel to the axis of the shaft core body; a retaining ring is fixedly provided on the other side of the shaft core body, and the retaining ring resists the side surface of the external crank; A correction pedal axle core is installed in the pedal mounting threaded hole of the left crank and the right crank respectively, and the two correction pedal axles are respectively the left correction pedal axle core and the right correction pedal axle core, and the engaging column of the left correction pedal axle core and the engaging column of the left correction pedal axle core have different shapes.

2. The error correction pedal shaft core according to claim 1, characterized in that: The bottom surface of the shaft core body provided with the coupling structure is a plane that fits the contact surface of the external pedal.

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