Rear wheel hook claw of folding electric bicycle

Abstract

The utility model discloses a folding electric bicycle rear wheel hook claw which comprises a hook claw connecting piece and a bicycle frame connector arranged on one side of the hook claw connecting piece, a U-shaped groove is formed in the hook claw connecting piece, an annular protrusion and a rectangular protruding block which are arranged side by side are arranged on the bicycle frame connector, the annular protrusion is sleeved with a bicycle frame main pipe, and the rectangular protruding block is arranged on the bicycle frame main pipe. The frame main pipe is sleeved with the annular protrusion, the rectangular protruding block is sleeved with the frame auxiliary pipe, the annular protrusion and the frame main pipe are welded and fixed, the rectangular protruding block and the frame auxiliary pipe are welded and fixed, and the connecting structure is stable in connecting performance and firm in structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of folding electric bicycle rear wheel hook claw, belong to electric bicycle field. BACKGROUND

[0002] Riding as a kind of sports, it is very popular in daily life, wherein riding cannot be separated from bicycle, and traditional bicycle is usually bulky due to the limitation of frame, and has the problem of inconvenient carrying, so folding bicycle for convenient carrying appears, on the other hand, since traditional bicycle is more laborious in uphill or long distance, so electric power-assisted bicycle appears.

[0003] Hook claw is an important component part on bicycle and power-assisted bicycle, and its function is to connect the fork and the stand of the bicycle or power-assisted bicycle, and to fix the rear axle of the bicycle, so as to install the rear wheel. At present, the traditional hook claw includes right hook claw assembly and left hook claw assembly arranged side by side. The right hook claw assembly includes a right connecting piece and a right hook claw. The top of the right connecting piece is provided with a first upper extension arm for connecting with the stand pipe of the vehicle. The front of the lower part of the right connecting piece is provided with a first front extension arm for connecting with the fork pipe of the vehicle frame. The first upper extension arm, the right connecting piece and the first front extension arm are integrally connected. The right hook claw is integrally connected with the right connecting piece. The left hook claw assembly includes a left connecting piece and a left hook claw. The top of the left connecting piece is provided with a second upper extension arm for connecting with the stand pipe of the vehicle frame. The front of the lower part of the left connecting piece is provided with a second front extension arm for connecting with the fork pipe of the vehicle frame. The left hook claw is integrally connected with the left connecting piece. The right and left hook claws of the traditional hook claw are integrally connected with the right and left connecting pieces. The right and left hook claws cannot be replaced individually after being damaged. The connecting performance is unstable. The structural stability is low. Moreover, the integrally connected hook claw has high requirements for the left-right symmetry of the vehicle frame during installation.

[0004] The right and left hook claws of the traditional hook claw are integrally connected with the right and left connecting pieces. The right and left hook claws cannot be replaced individually after being damaged. The connecting performance is unstable. The structural stability is low. Moreover, the integrally connected hook claw has high requirements for the left-right symmetry of the vehicle frame during installation.

[0005] Chinese patent CN 219883991 U discloses a multifunctional hook claw, which includes two hook claw bodies and two lifting lugs. Tail lights are embedded in the tail parts of the two hook claw bodies. The two lifting lugs are adjustably assembled on the inner sides of the two hook claw bodies and can slide relative to the hook claw bodies. Each lifting lug is locked with the hook claw body by a bolt. The hook claw structure of the patent has poor structural stability, and the connection stability between the components is low. UTILITY MODEL CONTENTS

[0006] The utility model solves the technical problem, and provides a folding electric bicycle rear wheel hook claw with stable connecting performance and firm structure.

[0007] The utility model discloses a technical scheme provided for solving the above technical problems, which is a folding electric bicycle rear wheel hook claw, comprising a hook claw connecting piece and a frame joint arranged on one side of the hook claw connecting piece, a U-shaped groove is formed on the hook claw connecting piece, an annular protrusion and a rectangular protruding block are arranged side by side on the frame joint, a frame main pipe is sleeved on the annular protrusion, a frame auxiliary pipe is sleeved on the rectangular protruding block, the annular protrusion is welded and fixed with the frame main pipe, and the rectangular protruding block is welded and fixed with the frame auxiliary pipe.

[0008] Preferably, a connecting part is arranged on one side above the connecting part of the hook claw connecting piece and the frame joint, the bottom of one end of the connecting part is fixedly connected with the hook claw connecting piece and the frame joint, the other end of the connecting part extends towards the frame main pipe, the middle section of the connecting part is in the form of an arc-shaped notch opening upwards, and brake fixing holes are formed in the top of both ends of the connecting part.

[0009] Preferably, the hook claw connecting piece further comprises a speed changer connecting piece, a groove is formed around the U-shaped groove of the hook claw connecting piece, one end of the speed changer connecting piece is in the form of matching the groove and is fixed in the groove through a screw, a U-shaped notch is formed on the speed changer connecting piece and is in the form of matching the U-shaped groove of the hook claw connecting piece, a speed changer fixing seat is arranged on the other end of the speed changer connecting piece, and a speed changer mounting hole is formed in the speed changer fixing seat.

[0010] Preferably, when the speed changer connecting piece is clamped in the groove, the top of the speed changer connecting piece is flush with the top of the hook claw connecting piece on both sides, and the bottom of the speed changer connecting piece abuts against the bottom of the groove.

[0011] Preferably, two connecting piece fixing holes are formed on the speed changer connecting piece and are arranged along the height direction of the speed changer connecting piece, two connecting piece mounting holes are formed on the bottom of the groove, and the centers of the connecting piece fixing holes and the connecting piece mounting holes are arranged in alignment.

[0012] Preferably, a speed changer is connected to the speed changer fixing seat, one end of the speed changer is provided with a speed changer fixing hole, the speed changer fixing hole is matched with the speed changer mounting hole, and a bolt for fixing the speed changer connecting piece and the speed changer is arranged in the speed changer fixing hole and the speed changer mounting hole.

[0013] The utility model has the positive effect that:

[0014] (1) The folding electric bicycle rear wheel hook claw comprises a hook claw connecting piece and a frame joint, the hook claw connecting piece is used for being fixed with a hub, the frame main pipe and the frame auxiliary pipe are fixedly sleeved on the frame joint, the U-shaped groove of the hook claw connecting piece is matched with a hub shaft, the hook claw is fixed with the hub through a nut and a lock washer, the connecting performance is stable, the structure is firm, and the installation is convenient.

[0015] (2) The folding electric bicycle rear wheel hook claw of the utility model, through setting the recess with the shape and size matched with the speed changer connecting piece on the hook connecting piece, the speed changer connecting piece and the hook connecting piece are clamped and fixed, one end of the speed changer connecting piece is provided with a speed changer fixing seat, a speed changer mounting hole is set on the speed changer fixing seat, a speed changer fixing hole is set on one end of the speed changer, through setting the bolt in the speed changer fixing hole and the speed changer mounting hole, the bolt of the speed changer connecting piece and the speed changer is fixedly connected, the various components are matched with each other, the structure is ingenious and good in stability. BRIEF DESCRIPTION OF DRAWINGS

[0016] The folding electric bicycle rear wheel hook claw of the utility model will be further described below in combination with the drawings.

[0017] Figure 1 It is a structural schematic view of example 1;

[0018] Figure 2 It is a partial structural schematic view of Figure 1

[0019] Figure 3 It is a structural schematic view of example 2;

[0020] Figure 4 It is a partial structural schematic view of Figure 3

[0021] Figure 5 It is a structural schematic view of the speed changer connecting piece.

[0022] The above reference signs are as follows:

[0023] Hook connecting piece 51, frame joint 52, annular protrusion 53, rectangular protruding block 54, U-shaped groove 55, connecting part 56, arc-shaped notch 561, brake fixing hole 562, recess 57, connecting piece mounting hole 571, frame main pipe 6, frame auxiliary pipe 7, speed changer connecting piece 8, U-shaped notch 81, speed changer fixing seat 82, speed changer mounting hole 83, connecting piece fixing hole 84, speed changer 9, speed changer fixing hole 91. DETAILED DESCRIPTION

[0024] Example 1

[0025] See Figures 1 to 2 The folding electric bicycle rear wheel hook claw of the utility model, including hook connecting piece 51 and frame joint 52 arranged on one side of the hook connecting piece 51, a U-shaped groove 55 is set on the hook connecting piece 51, the frame joint 52 is provided with annular protrusion 53 and rectangular protruding block 54 arranged side by side, the annular protrusion 53 is sleeved with frame main pipe 6, the rectangular protruding block 54 is sleeved with frame auxiliary pipe 7, the annular protrusion 53 and the frame main pipe 6 are welded and fixed, and the rectangular protruding block 54 and the frame auxiliary pipe 7 are welded and fixed. ​​

[0026] The side above the connection between the hook connecting plate 51 and the frame joint 52 is provided with a connecting part 56, the bottom of one end of the connecting part 56 is fixedly connected with the hook connecting plate 51 and the frame joint 52, the other end of the connecting part 56 extends to the frame main pipe 6, the middle section of the connecting part 56 is provided with an arc-shaped notch 561 opening upward, and brake fixing holes 562 are formed in the top of both ends of the connecting part 56.

[0027] Embodiment 2

[0028] See Figures 3 to 5 The hook of the folding electric bicycle rear wheel in the embodiment comprises a hook connecting plate 51 and a frame joint 52 arranged on one side of the hook connecting plate 51, a U-shaped groove 55 is formed in the hook connecting plate 51, a ring-shaped protrusion 53 and a rectangular protrusion 54 are arranged side by side on the frame joint 52, the ring-shaped protrusion 53 is sleeved with the frame main pipe 6, the rectangular protrusion 54 is sleeved with the frame auxiliary pipe 7, the ring-shaped protrusion 53 is fixedly welded with the frame main pipe 6, and the rectangular protrusion 54 is fixedly welded with the frame auxiliary pipe 7. The hook further comprises a speed changer connecting plate 8, a recess 57 is formed in the hook connecting plate 51 around the U-shaped groove 55, one end of the speed changer connecting plate 8 is matched with the recess 57 in shape and is fixed in the recess 57 through a screw, a U-shaped notch 81 matched with the shape of the U-shaped groove 55 of the hook connecting plate 51 is formed in the speed changer connecting plate 8, and a speed changer fixing seat 82 is arranged at the other end of the speed changer connecting plate 8, and a speed changer mounting hole 83 is formed in the speed changer fixing seat 82.

[0029] When the speed changer connecting plate 8 is clamped in the recess 57, the top of the speed changer connecting plate 8 is flush with the top of the hook connecting plate 51 on both sides, and the bottom of the speed changer connecting plate 8 abuts against the bottom of the recess 57. Two connecting plate fixing holes 84 arranged along the height direction of the speed changer connecting plate 8 are formed in the speed changer connecting plate 8, two connecting plate mounting holes 571 are formed in the bottom of the recess 57, and the centers of the connecting plate fixing holes 84 and the connecting plate mounting holes 571 are arranged in alignment.

[0030] The speed changer fixing seat 82 is connected with a speed changer 9, a speed changer fixing hole 91 is formed at one end of the speed changer 9, the speed changer fixing hole 91 is matched with the speed changer mounting hole 83, and a bolt for fixing the speed changer connecting plate 8 and the speed changer 9 is arranged in the speed changer fixing hole 91 and the speed changer mounting hole 83.

[0031] Obviously, the above-mentioned embodiments are only examples for clearly illustrating the embodiments of the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is unnecessary and impossible to enumerate all the embodiments. The changes or variations which belong to the extension of the spirit of the utility model still fall within the protection scope of the utility model.

Claims

1. A rear wheel hook for a folding electric bicycle, characterized in that, The device includes a hook-and-loop connector (51) and a frame connector (52) located on one side of the hook-and-loop connector (51). The hook-and-loop connector (51) has a U-shaped groove (55). The frame connector (52) has an annular protrusion (53) and a rectangular protrusion (54) arranged side by side. The annular protrusion (53) is fitted with a main frame tube (6). The rectangular protrusion (54) is fitted with a secondary frame tube (7). The annular protrusion (53) is welded and fixed to the main frame tube (6). The rectangular protrusion (54) is welded and fixed to the secondary frame tube (7).

2. The rear wheel hook of a folding electric bicycle according to claim 1, characterized in that, A connecting part (56) is provided on one side above the connection between the hook connecting piece (51) and the frame joint (52). The bottom of one end of the connecting part (56) is fixedly connected to the hook connecting piece (51) and the frame joint (52). The other end of the connecting part (56) extends toward the frame main tube (6). The middle section of the connecting part (56) is an arc-shaped notch (561) with an upward opening. Brake fixing holes (562) are provided at the top of both ends of the connecting part (56).

3. The rear wheel hook of a folding electric bicycle according to claim 1, characterized in that, It also includes a transmission connecting piece (8), the hook connecting piece (51) has a groove (57) around the U-shaped groove (55), one end of the transmission connecting piece (8) is shaped to match the groove (57) and is fixed in the groove (57) by screws, the transmission connecting piece (8) has a U-shaped notch (81) that matches the shape of the U-shaped groove (55) of the hook connecting piece (51), the other end of the transmission connecting piece (8) is provided with a transmission mounting seat (82), the transmission mounting seat (82) is provided with a transmission mounting hole (83).

4. The rear wheel hook of a folding electric bicycle according to claim 3, characterized in that, When the transmission connecting piece (8) is engaged in the groove (57), the top of the transmission connecting piece (8) is flush with the top of the hook connecting pieces (51) on both sides, and the bottom of the transmission connecting piece (8) abuts against the bottom of the groove (57).

5. A rear wheel hook for a folding electric bicycle according to claim 3, characterized in that, The transmission connecting piece (8) has two connecting piece fixing holes (84) arranged along the height direction of the transmission connecting piece (8), and the bottom of the groove (57) has two connecting piece mounting holes (571). The connecting piece fixing holes (84) and the connecting piece mounting holes (571) are aligned at their centers.

6. A rear wheel hook for a folding electric bicycle according to claim 3, characterized in that, The transmission mounting bracket (82) is connected to the transmission (9). One end of the transmission (9) is provided with a transmission mounting hole (91). The transmission mounting hole (91) matches the transmission mounting hole (83). Bolts for fixing the transmission connecting piece (8) and the transmission (9) are provided in the transmission mounting hole (91) and the transmission mounting hole (83).

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