Detachable fixing piece for bottom bracket of electric bicycle

Abstract

The utility model relates to the technical field of bottom brackets of bicycles, and discloses a detachable fixing piece for a bottom bracket of an electric bicycle, which comprises a frame, a connecting cover is fixedly connected to the bottom of the frame, two fixing seats are fixedly connected to the inside of the connecting cover, positioning pins are fixedly connected to the interiors of the two fixing seats, and the positioning pins are fixedly connected to the bottom of the frame. A connecting seat is fixedly connected to the interior of the fixing seat on the left side, a connecting shaft is fixedly connected to the bottom of the connecting seat, a lower cover is fixedly connected to the outer side of the connecting shaft, fixing rings are fixedly connected to the front side and the rear side of the lower cover, and a main rod is fixedly connected to the right side of the frame. According to the five-way column, when the five-way column needs to be disassembled, the fixing ring connected with the connecting shaft is disassembled, so that the lower cover is conveniently taken down, the positioning pin clamped with the fixing seat and the connecting seat is pulled out, and the connecting shaft falls off, so that the five-way column can be quickly assembled and disassembled, and the maintenance and replacement time is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle five-way brackets, in particular to a detachable fixing part for an electric bicycle five-way bracket. Background Art

[0002] The detachable fixing of the electric bicycle five-way bracket is a component used to connect the electric bicycle five-way bracket to the frame and can be disassembled. It consists of two parts, namely the fixing seat and the connecting device. The fixing seat is adapted to the five-way bracket part of the frame through welding and a special slot structure. The shape is designed to fit closely with the outer contour of the five-way bracket to ensure stable support.

[0003] During installation, the five-way bracket is directly welded to a specific position on the frame. The welding connection has a high strength, which can firmly fix the five-way bracket to the frame, ensuring that the five-way bracket will not loosen or move during riding. After welding, the position of the five-way bracket is fixed. If the five-way bracket needs to be repaired or replaced later, disassembly will be difficult and cause damage to the frame.

[0004] In the existing detachable fixings of the five-way bracket of electric bicycles, because it is fixed to the frame by welding, the metal at the welding point has been fused together, making it difficult to separate the five-way bracket from the frame during disassembly. As a result, when replacement is needed, the difficult-to-disassemble five-way bracket will increase the difficulty of maintenance, time cost and reduce maintenance efficiency. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a detachable fixing part for the five-way bracket of an electric bicycle, aiming to improve the problem in the prior art that the five-way bracket is difficult to disassemble, resulting in increased difficulty, time cost and reduced maintenance efficiency.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a detachable five-way fixing part for an electric bicycle, comprising a frame, a connecting cover fixedly connected to the bottom of the frame, two fixing seats fixedly connected inside the connecting cover, positioning pins fixedly connected inside the two fixing seats, a connecting seat fixedly connected inside the fixing seat on the left side, a connecting seat fixedly connected to the bottom of the connecting seat, a connecting shaft fixedly connected to the outer side of the connecting shaft with a lower cover, fixing rings fixedly connected to the front and rear sides of the lower cover, a main rod fixedly connected to the right side of the frame, two support columns fixedly connected to the bottom of the main rod, a shock-absorbing mechanism is provided in the middle of the two support columns, and the shock-absorbing mechanism is used for shock absorption.

[0007] As a further description of the above technical solution:

[0008] The shock absorbing mechanism includes two fixed plates, the tops of the two fixed plates are fixedly connected to the middle of the two support columns, the bottoms of the two fixed plates are fixedly connected to multiple springs, the bottoms of the two fixed plates are fixedly connected to connecting plates, the bottoms of the two connecting plates are fixedly connected to dampers, and bolts pass through the middle of the two connecting plates.

[0009] As a further description of the above technical solution:

[0010] The outer walls of the two support columns are fixedly connected with a fixing ring, and the outer walls of the two fixing rings are fixedly connected with a reflective strip.

[0011] As a further description of the above technical solution:

[0012] A fixing block is fixedly connected to the right side of the outer wall of the main rod, and a connecting ring is fixedly connected to the right side of the fixing block.

[0013] As a further description of the above technical solution:

[0014] A lamp holder is fixedly connected to the right side of the bottom of the main rod, and a lighting lamp is fixedly connected to the right side of the lamp holder.

[0015] As a further description of the above technical solution:

[0016] The bottoms of the two support columns are fixedly connected with caps, and the two caps are of smooth design.

[0017] As a further description of the above technical solution:

[0018] The left side of the frame is fixedly connected to two support rods, and the tops of the two support rods are fixedly connected to mudguards.

[0019] As a further description of the above technical solution:

[0020] The inner bottom side of the frame is fixedly connected with a water discharge rack, and the top of the water discharge rack is fixedly connected with two retaining rings.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, when disassembly is required, the fixing ring connected to the connecting shaft is removed, so that the lower cover can be easily removed, and the positioning pin engaged with the fixing seat and the connecting seat is pulled out, so that the connecting shaft falls off, thereby realizing the rapid installation and disassembly of the five-way column and saving the time of maintenance and replacement.

[0023] 2. In the present invention, when the bicycle encounters vibration, the multiple springs at the bottom of the fixed plate will undergo elastic deformation due to the force, and partially convert the vibration energy into elastic potential energy of the spring. On the basis of the spring playing a role, the damper at the bottom of the connecting plate further enhances the shock absorption effect and reduces the remaining vibration, thereby effectively reducing the vibration caused by riding and increasing the riding comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of a detachable fixing member for the five-way bracket of an electric bicycle proposed by the utility model;

[0025] Figure 2 This is a front view of a detachable fixing member for the five-way bracket of an electric bicycle proposed by the utility model;

[0026] Figure 3 This is a structural schematic diagram of a fixing seat for a detachable fixing member of a five-way bracket of an electric bicycle proposed in the present invention;

[0027] Figure 4 This is a schematic structural diagram of a spring for a detachable fixing member of a five-way bracket of an electric bicycle proposed in the present invention;

[0028] Figure 5 The utility model is a structural schematic diagram of a damper for a detachable fixing part of a five-way bracket of an electric bicycle.

[0029] Legend:

[0030] 1. Frame; 2. Shock-absorbing mechanism; 201. Fixing plate; 202. Spring; 203. Connecting plate; 204. Damper; 205. Bolt; 3. Connecting cover; 4. Fixing seat; 5. Positioning pin; 6. Connecting seat; 7. Connecting shaft; 8. Lower cover; 9. Fixing ring; 10. Main pole; 11. Support column; 12. Fixing ring; 13. Reflective strip; 14. Fixing block; 15. Connecting ring; 16. Lamp holder; 17. Lighting lamp; 18. Cover cap; 19. Support pole; 20. Mudguard; 21. Drain rack; 22. Retaining ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 and Figure 3The utility model provides an embodiment of a detachable five-way fixing part for an electric bicycle, comprising a frame 1, a connecting cover 3 fixedly connected to the bottom of the frame 1 for connecting various brackets of the bicycle, the interior of the connecting cover 3 is fixedly connected to two fixing seats 4, the interiors of the two fixing seats 4 are fixedly connected to positioning pins 5, the interior of the left fixing seat 4 is fixedly connected to a connecting seat 6, the connecting seat 6 is stuck in the interior of the fixing seat 4, the positioning pins 5 stably connect the connecting seat 6 and the fixing seat 4, the bottom of the connecting seat 6 is fixedly connected to a connecting shaft 7, the outer side of the connecting shaft 7 is fixedly connected to a lower cover 8, the front and rear sides of the lower cover 8 are fixedly connected to a fixing ring 9, and the lower cover 8 is fixed to the connecting shaft 7 by the fixing of the fixing ring 9. The right side of the frame 1 is fixedly connected to a main rod 10, and the bottom of the main rod 10 is fixedly connected to two support columns 11 for supporting the front wheel of the bicycle. A shock absorbing mechanism 2 is provided at the middle of the two support columns 11, and the shock absorbing mechanism 2 is used for shock absorption;

[0033] Reference Figure 4 and Figure 5 The shock absorbing mechanism 2 includes two fixing plates 201 for fixing parts. The tops of the two fixing plates 201 are fixedly connected to the middle of the two support columns 11. The bottoms of the two fixing plates 201 are fixedly connected with a plurality of springs 202 for reducing vibration. The bottoms of the two fixing plates 201 are fixedly connected with connecting plates 203. The bottoms of the two connecting plates 203 are fixedly connected with dampers 204 for fixing the dampers 204. The dampers 204 further reduce the force generated by the vibration on the basis of the shock absorption of the springs 202, so that when the bicycle encounters vibration, the force caused by the vibration can be reduced. The middle parts of the two connecting plates 203 are penetrated by bolts 205 for fixing.

[0034] Reference Figure 1 and Figure 2 The outer walls of the two support columns 11 are fixedly connected with a fixing ring 12, and the outer walls of the two fixing rings 12 are fixedly connected with a reflective strip 13, which is used to remind people to pay attention to safety when reflecting light. The right side of the outer wall of the main pole 10 is fixedly connected with a fixing block 14, and the right side of the fixing block 14 is fixedly connected with a connecting ring 15, which is used to place the brake line to ensure that the line is not everywhere. The right side of the bottom of the main pole 10 is fixedly connected with a lamp holder 16, and the right side of the lamp holder 16 is fixedly connected with a lighting lamp 17, which is used to illuminate when the road is not clear at night;

[0035] Reference Figure 1 and Figure 2The bottom of the two support columns 11 are fixedly connected with a cap 18. The two caps 18 are of smooth design and are used to prevent the support columns 11 from falling off the wheel. Two support rods 19 are fixedly connected to the left side of the frame 1. The tops of the two support rods 19 are fixedly connected with a fender 20 to block the splash of water and mud. The inner bottom side of the frame 1 is fixedly connected with a water rack 21. The top of the water rack 21 is fixedly connected with two retaining rings 22, which provide a place for the rider to place a water bottle for drinking water.

[0036] Working principle: The connecting cover 3 at the bottom of the frame 1 is the key to connecting the various brackets. The two fixing seats 4 inside it provide the basis for subsequent connections. The positioning pins 5 in the fixing seats 4 enhance the stability of the connection. When the connecting seat 6 in the left fixing seat 4 is inserted into the fixing seat 4, the positioning pins 5 accurately limit its position to prevent it from displacement when subjected to force. The connecting shaft 7 at the bottom of the connecting seat 6 is connected to the lower cover 8, and the fixing rings 9 on the front and rear sides of the lower cover 8 are connected to the connecting shaft 7. The two support columns 11 at the bottom of the right main rod 10 of the frame 1 are used to support the front wheel of the bicycle, thereby realizing the rapid installation and removal of the bottom bracket post, saving time for maintenance and replacement.

[0037] In addition, when the bicycle encounters vibration, the multiple springs 202 at the bottom of the fixed plate 201 will undergo elastic deformation due to the force, converting part of the vibration energy into elastic potential energy of the spring. On the basis of the function of the spring 202, the damper 204 at the bottom of the connecting plate 203 further enhances the shock absorption effect and reduces the remaining vibration. The bolt 205 running through the middle of the two connecting plates 203 connects the entire shock absorption structure to prevent loosening and separation between the components during the shock absorption process, thereby effectively reducing the vibration caused by riding and increasing the riding comfort.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A detachable fixing member for a five-way bracket of an electric bicycle, comprising a frame (1), characterized in that: The bottom of the vehicle frame (1) is fixedly connected to a connecting cover (3), the interior of the connecting cover (3) is fixedly connected to two fixing seats (4), the interiors of the two fixing seats (4) are fixedly connected to positioning pins (5), the interior of the left fixing seat (4) is fixedly connected to a connecting seat (6), the bottom of the connecting seat (6) is fixedly connected to a connecting shaft (7), the outer side of the connecting shaft (7) is fixedly connected to a lower cover (8), the front and rear sides of the lower cover (8) are fixedly connected to fixing rings (9), the right side of the vehicle frame (1) is fixedly connected to a main rod (10), the bottom of the main rod (10) is fixedly connected to two support columns (11), and a shock absorbing mechanism (2) is provided in the middle of the two support columns (11), and the shock absorbing mechanism (2) is used for shock absorption.

2. The detachable fixing member for the bottom bracket of an electric bicycle according to claim 1, characterized in that: The shock absorbing mechanism (2) comprises two fixing plates (201), the tops of the two fixing plates (201) are fixedly connected to the middle of the two support columns (11), the bottoms of the two fixing plates (201) are fixedly connected to a plurality of springs (202), the bottoms of the two fixing plates (201) are fixedly connected to a connecting plate (203), the bottoms of the two connecting plates (203) are fixedly connected to a damper (204), and the middle of the two connecting plates (203) is penetrated by a bolt (205).

3. The detachable fixing member for the five-way bracket of an electric bicycle according to claim 1, characterized in that: The outer walls of the two support columns (11) are fixedly connected to a fixing ring (12), and the outer walls of the two fixing rings (12) are fixedly connected to a reflective strip (13).

4. The detachable fixing member for the bottom bracket of an electric bicycle according to claim 1, characterized in that: A fixing block (14) is fixedly connected to the right side of the outer wall of the main rod (10), and a connecting ring (15) is fixedly connected to the right side of the fixing block (14).

5. The detachable fixing member for the five-way bracket of an electric bicycle according to claim 1, characterized in that: A lamp holder (16) is fixedly connected to the right side of the bottom of the main rod (10), and a lighting lamp (17) is fixedly connected to the right side of the lamp holder (16).

6. The detachable fixing member for the bottom bracket of an electric bicycle according to claim 1, characterized in that: The bottoms of the two support columns (11) are fixedly connected with caps (18), and the two caps (18) are of smooth design.

7. The detachable fixing member for the five-way bracket of an electric bicycle according to claim 1, characterized in that: Two support rods (19) are fixedly connected to the left side of the vehicle frame (1), and fenders (20) are fixedly connected to the tops of the two support rods (19).

8. The detachable fixing member for the bottom bracket of an electric bicycle according to claim 1, characterized in that: A water discharge rack (21) is fixedly connected to the inner bottom side of the vehicle frame (1), and two retaining rings (22) are fixedly connected to the top of the water discharge rack (21).

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