Frame quick connector structure and bicycle frame thereof

Abstract

The utility model provides a bicycle frame quick connector structure and a bicycle frame thereof, and relates to the technical field of bicycle frames, the bicycle frame quick connector structure comprises a clamping plate and a clamping shell, one side of the clamping shell is provided with a clamping groove, the outer surface of the clamping plate is provided with a positioning structure, the positioning structure comprises a cylindrical rod, one side of the cylindrical rod is provided with a groove, and the clamping groove is provided with a through hole. The inner wall of the groove is slidably connected with a triangular block, one side of the buckle is fixedly connected with a groove block, and one end of the bending rod is provided with a second spring. Through the arrangement of the positioning structure, the position of the L-shaped block is limited by enabling the L-shaped block at one end of the bending rod to enter one side of the triangular block, so that the buckle cannot rotate outwards; the clamping plate and the clamping shell are quickly connected by rotating the rotating shaft, the triangular block is controlled to move by rotating the rotating shaft, so that position limitation on the L-shaped block can be quickly relieved, the clamping plate and the clamping shell are quickly detached, no extra tool is needed, and the fixing convenience and efficiency during folding and unfolding of the folding bicycle are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bicycle frame technical field especially relates to a frame quick joint structure and its bicycle frame. BACKGROUND

[0002] The bicycle frame is the core component of the bicycle, is used to bear and install all components required by the bicycle, including the bicycle front and rear wheels and chain wheel and pedal plate etc.

[0003] The foldable bicycle frame front half portion and rear half portion are connected through the hinge, and the frame can be folded by rotating at the hinge, and when using, the rotating place of two frames is adhered by rotating the frame, the buckle of the rear half frame is buckled on the buckle place on the surface of the front half frame, and then the bolt is used to pass through the inside of two buckles, the connection speed is slow through such connection mode, and the connecting piece used for connection is easy to fall off and lose when the connection is released. UTILITY MODEL CONTENTS

[0004] The utility model discloses a frame quick joint structure and its bicycle frame to solve the shortcoming in prior art.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a frame quick joint structure, including the card board and the card shell, one side of the card board is connected with the buckle and rotates, one side of the card board and the card shell is connected through the hinge, one side of the card shell is seted up with the card slot, and the outer surface of the card board is provided with the positioning structure that can carry out the quick joint of card board and card shell.

[0006] The effect reached by the above-mentioned components is that: when using the quick joint structure, the card board is pushed to rotate through the hinge on one side of the card shell, so that one side of the card board and the card shell is adhered, then the buckle is pushed to rotate and is buckled into the inside of the card slot on the outer surface of the card shell, and the card board and the card shell are jointed through the positioning structure.

[0007] Preferably, the positioning structure comprises a cylindrical rod fixedly connected with the inner wall of the shell, a groove is formed in one side of the cylindrical rod, a triangular block is slidably connected with the inner wall of the groove, a first spring is arranged on one side of the triangular block, the two ends of the first spring are fixedly connected with one end of the triangular block and one side of the cylindrical rod respectively, a slot block is fixedly connected with one side of the buckle, a bent rod is slidably connected with the inner wall of the slot block, a second spring is arranged on one end of the bent rod, the two ends of the second spring are fixedly connected with one end of the bent rod and one side of the inner wall of the slot block respectively, an L-shaped block is rotatably connected with one end of the bent rod, a coil spring is arranged on the bottom end of the L-shaped block, the two ends of the coil spring are fixedly connected with one side of the rotating shaft connecting the L-shaped block and the bent rod and one side of the bent rod respectively.

[0008] The above-mentioned components achieve the following effects: when the clamping plate is combined with the shell by arranging the L-shaped block, the clamping plate is rotated towards the shell, so that the clamping plate is attached to one side of the inner wall of the shell, then the buckle is rotated towards the shell, so that the slot block on the outer surface of the buckle and one end of the bent rod are located inside the clamping groove on the outer surface of the shell, when the bent rod enters the clamping groove, one end of the bent rod will first contact the inner wall of the clamping groove, so that the bent rod shrinks towards the inside of the slot block and compresses the second spring, when one end of the L-shaped block enters the groove on the outer surface of the cylindrical rod, one end of the L-shaped block will first contact one side of the triangular block, so that the triangular block slides away from the L-shaped block and compresses the first spring, at the same time, the L-shaped block rotates towards the bent rod and deforms the coil spring, then the L-shaped block moves to one side of the triangular block, the coil spring returns to its original state, so that the L-shaped block rotates to one side of the triangular block inside the groove on the outer surface of the cylindrical rod, at the same time, the first spring returns to its original state, so that the triangular block slides towards the bent rod outside the L-shaped block, the second spring inside the slot block returns to its original state and pushes the part of the bent rod inside the slot block to extend outside the slot block, at this time, the rotation of the buckle away from the shell will be blocked by the triangular block, so that the L-shaped block and the bent rod cannot rotate outward, thereby quickly clamping the clamping plate and the shell, without the need for additional tools to fix the clamping plate and the shell, thereby improving the rate of fixing the clamping plate and the shell when unfolding the folding bicycle after folding.

[0009] Preferably, one side of the triangular block is fixedly connected with a pull rope, part of the outer surface of the pull rope is located inside the cylindrical rod, the bottom end of the pull rope is located outside the bottom end of the cylindrical rod, the bottom end of the cylindrical rod is rotatably connected with a shaft rod, and one end of the pull rope away from the triangular block is fixedly connected with one side of the shaft rod.

[0010] The effect achieved by the above components is that when the clamping plate and the clamping shell are clamped by the positioning structure, if it is needed to separate the clamping plate and the clamping shell, the shaft rod at the bottom end of the cylindrical rod is rotated to wind one end of the pull rope on the outer surface of the shaft rod, the triangular block is moved and the first spring is compressed by pulling the pull rope, then the buckle is rotated outward to make the bent rod and the L-shaped block disengage from the inside of the clamping groove, and the pull rope on the outer surface of the shaft rod is released when the first spring of the shaft rod restores to the original state to push the triangular block to move.

[0011] Preferably, the bottom end of the shaft rod is fixedly connected with an operation block, and the outer surface of the operation block is provided with a plurality of protrusions.

[0012] The effect achieved by the above components is that the operation block can be more conveniently rotated by holding the protrusions on the outer surface of the operation block to control the rotation of the shaft rod and is not easy to slip.

[0013] Preferably, one end of the bent rod is fixedly connected with a blocking rod, and the blocking rod is located between the L-shaped block and the bent rod.

[0014] The effect achieved by the above components is that after the clamping plate and the clamping shell are clamped by the positioning structure, the L-shaped block is supported on the back side by the blocking rod when the L-shaped block is forced to rotate outward to make one end of the L-shaped block abut against one side of the triangular block, so that the L-shaped block is prevented from being broken due to force.

[0015] Preferably, one side of the L-shaped block is fixedly connected with an auxiliary sheet, and the side edge of the auxiliary sheet away from the L-shaped block is arc-shaped.

[0016] The effect achieved by the above components is that when the side of the L-shaped block provided with the auxiliary sheet contacts the side of the triangular block, the L-shaped block is more easily passed through the side of the triangular block to the other side of the triangular block through the arc-shaped auxiliary sheet, and is not easy to be clamped with the triangular block.

[0017] Preferably, the outer surface of the L-shaped block is fixedly connected with a reinforcing block, and the two ends of the reinforcing block are fixedly connected with the two sides of the bent part of the L-shaped block.

[0018] The effect achieved by the above components is that the shape of the outer surface of the L-shaped block is further reinforced by the reinforcing block, so that the outer surface of the L-shaped block is prevented from being bent and broken after being forced.

[0019] Preferably, a bicycle frame comprises a rear frame and a front frame, one side of the rear frame is connected with a clamping plate through a bolt, and one side of the front frame is connected with a clamping shell through a bolt.

[0020] Compared with the prior art, the advantages and positive effects of the utility model are that:

[0021] The utility model discloses a positioning structure is set up, and when rotating the clamping plate and clamping the clamping shell, the one end of the buckle is made into the inside of the clamping groove of the outer surface of the clamping shell, and the L-shaped block of the one end of the bending rod is made into the one side of the triangular block, the position of the L-shaped block is limited through the triangular block, the buckle cannot rotate outward, the clamping plate and the clamping shell are quickly connected, and the position limitation of the L-shaped block can be quickly removed through rotating the rotating shaft and controlling the triangular block to move, the clamping plate and the clamping shell are quickly separated, do not need to use the additional tool, and the convenience and efficiency of fixing when folding and unfolding the folding bicycle are improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0023] Figure 2 It is the three-dimensional structure schematic diagram of the buckle of the utility model;

[0024] Figure 3 It is the three-dimensional structure schematic diagram of the clamping plate of the utility model;

[0025] Figure 4 It is the three-dimensional structure schematic diagram of the local section of the buckle of the utility model;

[0026] Figure 5 It is the three-dimensional structure schematic diagram of the cylindrical rod of the utility model;

[0027] Figure 6 It is the three-dimensional structure schematic diagram of the local section of the cylindrical rod of the utility model;

[0028] Figure 7 It is the three-dimensional structure schematic diagram of the groove block of the utility model;

[0029] Figure 8 It is the three-dimensional structure schematic diagram of the local section of the groove block of the utility model.

[0030] Legend: 1, clamping plate;2, positioning structure;3, buckle;4, clamping shell;5, clamping groove;6, rear frame;7, front frame;21, cylindrical rod;22, recess;23, triangular block;24, first spring;25, groove block;26, second spring;27, bending rod;28, L-shaped block;29, coil spring;210, pull rope;211, shaft;212, operating block;213, blocking rod;214, auxiliary sheet;215, reinforcing block. DETAILED DESCRIPTION

[0031] Embodiment 1, as Figures 1-3As shown, a kind of frame quick connector structure, including card board 1 and card shell 4, the side of card board 1 is rotatably connected with buckle 3, and the side of card board 1 and card shell 4 is connected by hinge, the side of card shell 4 is provided with clamping groove 5, and the outer surface of card board 1 is provided with the positioning structure 2 that can be quickly engaged with card board 1 and card shell 4, when quick connector structure is used, card board 1 is pushed to the side of card shell 4 and is rotated by hinge, so that the side of card board 1 is attached with card shell 4, subsequently buckle 3 is rotated and buckle 3 is clamped into the inside of the clamping groove 5 of the outer surface of card shell 4, and card board 1 is engaged with card shell 4 by positioning structure 2.

[0032] Referring to Figures 3-8As shown, in the embodiment: the positioning structure 2 comprises a cylindrical rod 21, the cylindrical rod 21 is fixedly connected with the inner wall of the shell 4, a groove 22 is formed in one side of the cylindrical rod 21, a triangular block 23 is slidably connected with the inner wall of the groove 22, a first spring 24 is arranged on one side of the triangular block 23, the two ends of the first spring 24 are fixedly connected with one end of the triangular block 23 and one side of the cylindrical rod 21 respectively, a groove block 25 is fixedly connected with one side of the buckle 3, a bent rod 27 is slidably connected with the inner wall of the groove block 25, a second spring 26 is arranged on one end of the bent rod 27, the two ends of the second spring 26 are fixedly connected with one end of the bent rod 27 and one side of the inner wall of the groove block 25 respectively, an L-shaped block 28 is rotatably connected with one end of the bent rod 27, a coil spring 29 is arranged on the bottom end of the L-shaped block 28, the two ends of the coil spring 29 are fixedly connected with one side of the shaft connecting the L-shaped block 28 with the bent rod 27 and one side of the bent rod 27 respectively. By arranging the L-shaped block 28, when the clamping plate 1 is combined with the shell 4, the clamping plate 1 is pushed to rotate towards the shell 4, so that the clamping plate 1 is attached to one side of the inner wall of the shell 4, then the buckle 3 is pushed to rotate towards the shell 4, so that the groove block 25 on the outer surface of the buckle 3 and one end of the bent rod 27 are located in the clamping groove 5 on the outer surface of the shell 4, when the bent rod 27 enters the clamping groove 5, one end of the bent rod 27 will first contact the inner wall of the clamping groove 5, so that the bent rod 27 shrinks into the inner part of the groove block 25 and compresses the second spring 26, when one end of the L-shaped block 28 enters the groove 22 on the outer surface of the cylindrical rod 21, one end of the L-shaped block 28 will first contact one side of the triangular block 23, so that the triangular block 23 is pushed to slide away from the L-shaped block 28 and compresses the first spring 24, at the same time, the L-shaped block 28 will rotate towards the bent rod 27 and make the coil spring 29 deform, then the L-shaped block 28 moves to one side of the triangular block 23, the coil spring 29 restores to its original state, so that the L-shaped block 28 rotates to one side of the triangular block 23 in the groove 22 on the outer surface of the cylindrical rod 21, at the same time, the first spring 24 restores to its original state, so that the triangular block 23 is pushed to slide towards the bent rod 27 and is located outside the L-shaped block 28, the second spring 26 in the groove block 25 restores to its original state and pushes the part of the bent rod 27 in the groove block 25 to stretch out of the groove block 25, at this time, the buckle 3 rotates away from the shell 4, so that the L-shaped block 28 and the bent rod 27 cannot rotate outwards due to the blockage of the triangular block 23, so that the clamping plate 1 and the shell 4 are quickly clamped, without the need of using additional tools to fix the clamping plate 1 and the shell 4, and the rate of fixing the clamping plate 1 and the shell 4 when the folding bicycle is unfolded after being folded is improved.

[0033] Reference Figures 4-8As shown, in the embodiment: one side of the triangular block 23 is fixedly connected with the pull rope 210, the outer surface part of the pull rope 210 is located inside the cylindrical rod 21, the bottom end of the pull rope 210 is located outside the bottom end of the cylindrical rod 21, the bottom end of the cylindrical rod 21 is rotatably connected with the shaft rod 211, one end of the pull rope 210 away from the triangular block 23 is fixedly connected with one side of the shaft rod 211, when the clamping plate 1 and the clamping shell 4 are clamped by the positioning structure 2, and the clamping plate 1 and the clamping shell 4 need to be separated, the shaft rod 211 at the bottom end of the cylindrical rod 21 can be rotated to wind the one end of the pull rope 210 on the outer surface of the shaft rod 211, the triangular block 23 is moved and the first spring 24 is compressed by pulling the pull rope 210, then the buckle 3 can be rotated outward to make the bent rod 27 and the L-shaped block 28 disengage from the inside of the clamping groove 5, the pull rope 210 on the outer surface of the shaft rod 211 is released when the first spring 24 of the shaft rod 211 returns to the original state, the triangular block 23 is pushed to move, the operation block 212 is fixedly connected to the bottom end of the shaft rod 211, and a plurality of protrusions are arranged on the outer surface of the operation block 212. By holding the protrusions on the outer surface of the operation block 212, the operation block 212 can be more conveniently rotated to control the rotation of the shaft rod 211 and is not easy to slip.

[0034] Referring to Figures 4-8 As shown, in the embodiment: one end of the bent rod 27 is fixedly connected with the stop rod 213, the stop rod 213 is located between the L-shaped block 28 and the bent rod 27, after the clamping plate 1 and the clamping shell 4 are clamped by the positioning structure 2, the L-shaped block 28 is supported through the stop rod 213 when one end of the L-shaped block 28 is abutted against one side of the triangular block 23 to make the L-shaped block 28 rotate outward under the action of the buckle 3, so that the L-shaped block 28 is as much as possible to avoid being broken under the action.

[0035] Referring to Figures 4-8 As shown, in the embodiment: one side of the L-shaped block 28 is fixedly connected with the auxiliary sheet 214, the side edge away from the L-shaped block 28 of the auxiliary sheet 214 is arc-shaped, when the side of the L-shaped block 28 provided with the auxiliary sheet 214 is in contact with one side of the triangular block 23, the L-shaped block 28 is more easily passed through one side of the triangular block 23 to enter the other side of the triangular block 23 through the arc-shaped auxiliary sheet 214, and the L-shaped block 28 is not easy to be clamped with the triangular block 23, the outer surface of the L-shaped block 28 is fixedly connected with the reinforcing block 215, and the two ends of the reinforcing block 215 are fixedly connected with the two sides of the bent part of the L-shaped block 28 respectively. By arranging the reinforcing block 215, the shape of the outer surface of the L-shaped block 28 can be further reinforced, so that the outer surface of the L-shaped block 28 is as much as possible to avoid being bent and broken after being stressed.

[0036] Referring to Figures 1-2 As shown, a bicycle frame includes a rear frame 6 and a front frame 7, one side of the rear frame 6 is connected with the clamping plate 1 through bolts, and one side of the front frame 7 is connected with the clamping shell 4 through bolts.

[0037] Working principle: when the front frame 7 is combined with the rear frame 6 using the quick connector structure, the rear frame 6 is pushed to rotate towards the front frame 7, so that the clamping plate 1 is attached to the inside of the clamping shell 4. Then the clasp 3 is pushed to rotate towards the clamping shell 4, so that the groove block 25 and one end of the bent rod 27 on the outer surface of the clasp 3 are inside the clamping groove 5 on the outer surface of the clamping shell 4. When the bent rod 27 enters the clamping groove 5, one end of the bent rod 27 will first contact the inner wall of the clamping groove 5, causing the bent rod 27 to shrink into the groove block 25 and compress the second spring 26. When one end of the L-shaped block 28 enters the groove 22 on the outer surface of the cylindrical rod 21, one end of the L-shaped block 28 will first contact one side of the triangular block 23, pushing the triangular block 23 to slide away from the L-shaped block 28 and compress the first spring 24. At the same time, the L-shaped block 28 will rotate towards the bent rod 27 and cause the coil spring 29 to deform. Then the L-shaped block 28 moves to one side of the triangular block 23, and the coil spring 29 returns to its original shape, causing the L-shaped block 28 to rotate to the inside of the groove 22 on the outer surface of the cylindrical rod 21, located on one side of the triangular block 23. At the same time, the first spring 24 returns to its original shape, pushing the triangular block 23 to slide towards the bent rod 27, located outside the L-shaped block 28. The second spring 26 inside the groove block 25 returns to its original shape, causing the part of the bent rod 27 inside the groove block 25 to extend outside the groove block 25. At this time, rotating the clasp 3 away from the clamping shell 4 will be blocked by the triangular block 23, preventing the L-shaped block 28 and the bent rod 27 from rotating outward. When the front frame 7 needs to be folded with the rear frame 6, rotate the shaft 211 at the bottom end of the cylindrical rod 21 to partially wrap the end of the pull rope 210 around the outer surface of the shaft 211. Pull the triangular block 23 to move and compress the first spring 24 through the pull rope 210. Then, the clasp 3 can be rotated outward to make the bent rod 27 and the L-shaped block 28 disengage from the inside of the clamping groove 5. Loosen the shaft 211, and the first spring 24 returns to its original shape, pushing the triangular block 23 to move and release the pull rope 210 from the outer surface of the shaft 211. Continue to push the rear frame 6 to rotate through the hinge between the clamping plate 1 and the clamping shell 4 and attach to the side of the front frame 7 for folding.

[0038] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and alteration of the above embodiments without departing from the technical content of the present application, according to the technical essence of the present application, still belong to the protection scope of the present application. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A frame quick connector structure comprising a clamping plate (1) and a clamping shell (4), characterized in that: One side of the card board (1) is rotatably connected with a buckle (3), one side of the card board (1) and the card shell (4) is connected through a hinge, one side of the card shell (4) is provided with a clamping groove (5), and the outer surface of the card board (1) is provided with a positioning structure (2) which can quickly connect the card board (1) and the card shell (4).

2. The quick connector structure of claim 1, wherein: The positioning structure (2) comprises a cylindrical rod (21), the cylindrical rod (21) is fixedly connected with the inner wall of the card shell (4), one side of the cylindrical rod (21) is provided with a groove (22), the inner wall of the groove (22) is slidably connected with a triangular block (23), one side of the triangular block (23) is provided with a first spring (24), the two ends of the first spring (24) are fixedly connected with one end of the triangular block (23) and one side of the cylindrical rod (21), one side of the buckle (3) is fixedly connected with a groove block (25), the inner wall of the groove block (25) is slidably connected with a bent rod (27), one end of the bent rod (27) is provided with a second spring (26), the two ends of the second spring (26) are fixedly connected with one end of the bent rod (27) and the inner wall of the groove block (25), one end of the bent rod (27) is rotatably connected with an L-shaped block (28), the bottom end of the L-shaped block (28) is provided with a coil spring (29), the two ends of the coil spring (29) are fixedly connected with one side of the rotating shaft connecting the L-shaped block (28) and the bent rod (27) and one side of the bent rod (27).

3. The quick connector structure of claim 2, wherein: One side of the triangular block (23) is fixedly connected with a pull rope (210), part of the outer surface of the pull rope (210) is located in the inside of the cylindrical rod (21), the bottom end of the pull rope (210) is located outside the bottom end of the cylindrical rod (21), the bottom end of the cylindrical rod (21) is rotatably connected with a shaft rod (211), and one end of the pull rope (210) away from the triangular block (23) is fixedly connected with one side of the shaft rod (211).

4. The quick connector structure of claim 3, wherein: The bottom end of the shaft rod (211) is fixedly connected with an operating block (212), and the outer surface of the operating block (212) is provided with a plurality of protrusions.

5. The quick connector structure of claim 4, wherein: One end of the bent rod (27) is fixedly connected with a blocking rod (213), and the blocking rod (213) is located between the L-shaped block (28) and the bent rod (27).

6. The quick connector structure of claim 5, wherein: One side of the L-shaped block (28) is fixedly connected with an auxiliary sheet (214), and the side edge away from the L-shaped block (28) is arc-shaped.

7. The quick connector structure of claim 6, wherein: The outer surface of the L-shaped block (28) is fixedly connected with a reinforcing block (215), and the two ends of the reinforcing block (215) are fixedly connected with the two sides of the bending part of the L-shaped block (28).

8. A bicycle frame for use with the frame quick connector structure of any one of claims 1-7, characterized by: It comprises a rear frame (6) and a front frame (7), one side of the rear frame (6) is connected with the card board (1) through bolts, and one side of the front frame (7) is connected with the card shell (4) through bolts.

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