Bicycle pedal eccentric structure

Abstract

The utility model relates to the technical field of bicycles, in particular to a bicycle pedal eccentric structure which comprises an eccentric fixing disc, a driving shaft body is inserted in the left position of the center of the inner side of the eccentric fixing disc, a sliding block body is fixedly connected to one end of the driving shaft body, and a crank throw body is slidably connected to the inner side of the sliding block body. According to the bicycle pedal eccentric structure, through the arrangement of the buckle plate, the vertical plate, the clamping groove, the clamping plate, the guide block, the fastening hole groove, the fastening screw rod and the threaded connector, the bicycle pedal eccentric structure can conveniently assist a rider in riding a bicycle in a more labor-saving mode by means of the lever principle, and the bicycle pedal eccentric structure is convenient to use and high in practicability. The anti-loosening limiting devices are additionally arranged on the two sides of the sliding block body, so that when the crank throw body slides and stretches out and draws back in the sliding block body, the crank throw body can be guided, limited and assisted, and the phenomenon that the crank throw body loosens from the interior of the sliding block body is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bicycle technical field, concretely is a bicycle pedal eccentric structure. BACKGROUND

[0002] The bicycle pedal is one of important bicycle parts, is located both sides of the frame, and the pedal is usually fixed on the crank, so that the rider can drive the bicycle forward by treading the pedal, and the whole design is provided with the equal arm lever structure, which can ensure that the bicycle can keep balance and stability when treading;

[0003] The existing bicycle pedal can change the driving length of the crank by installing the eccentric structure when installing and using, so that the rider can realize labor-saving riding, but considering that the extension length changes slightly when the eccentric motion, the crank may be loosened from the eccentric structure without the setting of the anti-loosening protection measure, thereby affecting the normal riding of the rider treading the bicycle pedal, therefore, the bicycle pedal eccentric structure is provided for the above problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a bicycle pedal eccentric structure, which solves the problem of the crank being loosened from the eccentric structure in the prior art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A bicycle pedal eccentric structure, comprising an eccentric fixing disc, a driving shaft body is inserted into the inner side center left position of the eccentric fixing disc, one end of the driving shaft body is fixedly connected with a sliding block body, the inner side of the sliding block body is slidingly connected with a crank body, a vertical plate is arranged on the outer side of the sliding block body, one end of the vertical plate is fixedly connected with a buckle plate which is connected with the sliding block body, a clamping groove is formed in the vertical plate of the sliding block body, a clamping plate is fixedly connected with the vertical plate and is clamped in the clamping groove, a guide block is fixedly connected to the end face of the clamping plate close to the inner deep part of the sliding block body, a fastening screw is inserted into the center position of the buckle plate, and the sliding block body is threadedly connected with the fastening screw through the fastening hole groove arranged on the inner side of the vertical plate.

[0007] Preferably, a guide groove is formed in the surface of the crank body and is slidingly connected with the guide block, the inner end of the guide groove and the outer end of the guide block are arranged in shape matching mode, the fastening hole groove and the clamping groove are arranged in communication mode, and the connection between the buckle plate and the vertical plate forms an L-shaped structure.

[0008] Preferably, one end of the eccentric fixed disc is fixedly connected with an adapter support, the inner side of the adapter support is provided with a tooth disc body, and the driving shaft body penetrates through the tooth disc body and is fixedly connected between the tooth disc bodies.

[0009] Preferably, the lower right position of the crank body is threadedly connected with a threaded joint, the upper outer side of the threaded joint is threadedly connected with a limiting nut, the lower outer side of the threaded joint is rotatably connected with a pedal body, and the limiting nut and the crank body are abutted.

[0010] Preferably, the inner right side of the eccentric fixed disc is abutted with an inner slide rod, the right side of the inner slide rod is fixedly connected with a convex ball which is slidably connected with the inner ring of the eccentric fixed disc, the outer right side of the eccentric fixed disc is clamped with an outer clamp, and the outer clamp is fixedly connected with the crank body and the inner slide rod.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] In the utility model, the bicycle pedal eccentric structure can utilize the lever principle, and the rider can ride the bicycle more labor-savingly in the process of assisting the rider, the anti-loosening limiting composed of the buckle plate, the vertical plate, the clamping groove, the clamping plate, the guide block, the fastening hole groove, the fastening screw rod and the threaded joint is installed at the both sides of the sliding block body, the crank body can be guided and limited when sliding and stretching in the sliding block body, the crank body is prevented from loosening from the sliding block body, the structural stability of the eccentric structure during actual use is improved, and the rider can ride normally. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is an overall top view structural schematic diagram of the utility model;

[0014] Figure 2 It is an internal structure schematic diagram of the sliding block body of the utility model;

[0015] Figure 3 It is a guide block structure schematic diagram of the utility model.

[0016] In the drawing: 1, eccentric fixed disc; 2, driving shaft body; 3, sliding block body; 4, crank body; 5, guide groove; 6, buckle plate; 7, vertical plate; 8, clamping groove; 9, clamping plate; 10, guide block; 11, fastening hole groove; 12, fastening screw rod; 13, threaded joint; 14, limiting nut; 15, pedal body; 16, adapter support; 17, tooth disc body; 18, inner slide rod; 19, convex ball; 20, outer clamp. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0018] Please refer to Figures 1-3 The present application provides a technical solution:

[0019] The eccentric structure of the bicycle pedal comprises an eccentric fixing disc 1, a driving shaft body 2 is inserted into the inner side center of the eccentric fixing disc 1, one end of the driving shaft body 2 is fixedly connected with a sliding block body 3, the inner side of the sliding block body 3 is slidingly connected with a crank body 4, the outer side of the sliding block body 3 is abuttingly provided with a vertical plate 7, one end of the vertical plate 7 is fixedly connected with a buckle plate 6 which is connected with the sliding block body 3, a clamping groove 8 is formed in the vertical plate of the sliding block body 3, a clamping plate 9 which is fixedly connected with the vertical plate 7 is clamped in the inner side of the clamping groove 8, a guide block 10 is fixedly connected with the end face of the clamping plate 9 which is close to the inner deep part of the sliding block body 3, a fastening screw 12 is inserted into the center position of the buckle plate 6, and the sliding block body 3 is screw-connected with the fastening screw 12 through the fastening hole groove 11 which is arranged in the inner side of the vertical plate.

[0020] Figure 2 And Figure 3 As shown in the figure, the surface of the crank body 4 is provided with a guide groove 5 which is slidingly connected with the guide block 10, the inner end of the guide groove 5 and the outer end of the guide block 10 are matched in shape, the fastening hole groove 11 and the clamping groove 8 are throughly arranged, the connection between the buckle plate 6 and the vertical plate 7 forms an L-shaped structure, the sliding between the guide groove 5 and the guide block 10 plays a guiding and limiting auxiliary role when the crank body 4 is eccentrically stretched and contracted.

[0021] As Figure 1As shown, the lower right position of the crank body 4 is threadedly connected with a threaded joint 13, the upper outer side of the threaded joint 13 is threadedly connected with a limiting nut 14, the lower outer side of the threaded joint 13 is rotatably connected with a pedal body 15, the limiting nut 14 and the crank body 4 are abutted, the threaded joint 13 is aligned with the reserved hole on the right side of the crank body 4, the alignment is achieved after being screwed, the limiting nut 14 is screwed by using a tool, the limiting nut 14 is tightened, and the stability after the pedal body 15 is installed is improved; the inner right side of the eccentric fixing disc 1 is abutted with an inner slide rod 18, the right side of the inner slide rod 18 is fixedly connected with a convex ball 19 which is slidably connected with the inner ring of the eccentric fixing disc 1, the outer right side of the eccentric fixing disc 1 is clamped with an outer clamp 20 which is fixedly connected with the crank body 4 and the inner slide rod 18, when the crank body 4 rotates eccentrically with the slide block body 3, the sliding fit of the convex ball 19 and the eccentric fixing disc 1 and the sliding fit of the eccentric fixing disc 1 and the outer clamp 20 can play a guiding and limiting role.

[0022] Workflow: Before the eccentric structure in the utility model is used, the driving shaft body 2 needs to be rotatably connected with the bicycle frame, and the eccentric fixing disc 1 needs to be fixed with the bicycle frame, when the crank body 4 connected with the pedal body 15 is connected to the eccentric structure, first, the inner part of the clamping groove 8 is aligned, the clamping plate 9 is clamped into the inner part of the clamping groove 8, the guide block 10 can extend to the inner side of the slide block body 3, the insertion hole in the middle of the buckling plate 6 is aligned, the fastening screw 12 is inserted into the insertion hole, the fastening screw 12 is screwed into the inner part of the fastening hole groove 11, the clamping clamping plate 9 in the clamping groove 8 is fixed, then the inner part of the slide block body 3 is aligned, the crank body 4 is installed into the inner part of the slide block body 3, the guide groove 5 and the guide block 10 are slidably connected together, at this time, the anti-loosening limiting structure composed of the guide groove 5, the buckling plate 6, the vertical plate 7, the clamping groove 8, the clamping plate 9, the guide block 10, the fastening hole groove 11 and the fastening screw 12 not only plays a guiding and assisting role when the crank body 4 slides in the inner part of the slide block body 3, but also can well limit the crank body 4 in the slide block body 3, avoiding the loosening and separation of the crank body 4 and the slide block body 3, when the rider pedals the pedal body 15 and rides the bicycle, under the limitation of the eccentric fixing disc 1, the crank body 4 will be driven forward, rotating with the slide block body 3, making the slide block body 3 rotate with the inner slide rod 18, the convex ball 19 and the outer clamp 20, respectively, along the inner and outer rings of the eccentric fixing disc 1, rotating synchronously, making the tooth disc body 17 rotate, driving the bicycle to move forward, at the same time, in the process of the crank body 4 rotating with the slide block body 3, the crank body 4 will slide and stretch in the inner part of the slide block body 3, making the force arm eccentrically stretch and contract, and the whole riding process will be more labor-saving.

[0023] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bicycle pedal eccentric structure comprising an eccentric fixing disc (1), characterized in that: The eccentric fixed disc (1) is inserted with a driving shaft body (2) at the inner center left position, one end of the driving shaft body (2) is fixedly connected with a sliding block body (3), the inner side of the sliding block body (3) is slidingly connected with a crank body (4), the outer side of the sliding block body (3) is abuttingly provided with a vertical plate (7), one end of the vertical plate (7) is fixedly connected with a buckle plate (6) which is clamped together with the sliding block body (3), a clamping groove (8) is formed at the vertical plate center position of the sliding block body (3), the inner side of the clamping groove (8) is clamped with a clamping plate (9) which is fixedly connected with the vertical plate (7), one end face of the clamping plate (9) close to the inner deep part of the sliding block body (3) is fixedly connected with a guide block (10), a fastening screw (12) is inserted at the center position of the buckle plate (6), the sliding block body (3) is threadedly connected with the fastening screw (12) through the fastening hole groove (11) provided at the inner side of the vertical plate.

2. A bicycle pedal eccentric structure according to claim 1, characterized in that: A guide groove (5) is formed on the surface of the crank body (4) and slidingly connected with the guide block (10), the inner end of the guide groove (5) and the outer end of the guide block (10) are matched in shape, the fastening hole groove (11) and the clamping groove (8) are throughly arranged, the connection between the buckle plate (6) and the vertical plate (7) constitutes an "L" type structure.

3. A bicycle pedal eccentric structure according to claim 1, characterized in that: One end of the eccentric fixed disc (1) is fixedly connected with an adapter bracket (16), a tooth disc body (17) is provided at the inner side of the adapter bracket (16), the driving shaft body (2) penetrates through the tooth disc body (17) and is fixedly connected between the tooth disc body (17).

4. A bicycle pedal eccentric structure according to claim 1, characterized in that: A threaded joint (13) is threadedly connected at the lower right position of the crank body (4), a limiting nut (14) is threadedly connected at the upper outer side of the threaded joint (13), a foot pedal body (15) is rotatably connected at the lower outer side of the threaded joint (13), the limiting nut (14) and the crank body (4) are abuttingly arranged.

5. A bicycle pedal eccentric structure according to claim 1, wherein: An inner slide rod (18) is abuttingly provided at the inner right side of the eccentric fixed disc (1), a convex ball (19) is fixedly connected at the right side of the inner slide rod (18) and slidingly connected with the inner ring of the eccentric fixed disc (1), an outer clamp (20) is clamped at the outer right side of the eccentric fixed disc (1), the outer clamp (20) is fixedly connected with the crank body (4) and the inner slide rod (18).

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