Electric bicycle frame reinforcement connection assembly

Abstract

The utility model relates to electric bicycle technical field discloses electric bicycle frame reinforcing connection subassembly, including frame lower beam subassembly, frame lower beam subassembly includes pivot, two front fork frame, two gaskets and bolt, one side of bolt all is fixedly connected with ring, ring inner ring surface all are seted up annular clamping slot, and the middle part of both ends of pivot all are seted up accommodating cavity, and the upper and lower ends in accommodating cavity all are seted up lifting groove, and the both ends of pivot rod wall all are screwed and are connected with hexagon bolt, and the inner end of hexagon bolt all rotates and is connected with the pivot, and pivot penetrates to the inner end in accommodating cavity, and one end of pivot all is fixedly connected with trapezoidal piece, and the inner end of lifting groove all slides and is connected with the limiting rod, and the rod wall of limiting rod all is fixedly connected with the limiting slide block, the utility model effectively solves the problem that traditional bolt connection is easy to slip silk for long -term riding vibration, avoids the connection loose, shakes and the component wear and tear, and the connection stability and durability of car front frame take area are improved obviously.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle technology, specifically to an electric bicycle frame reinforcement connection assembly. Background Technology

[0002] The front frame removal area at the front of an electric bicycle frame is a core stress-bearing part connecting the frame and the front fork, and its connection stability directly affects riding safety. Currently, this area generally uses a traditional connection structure of "bolts + washers + U-shaped brackets," where bolts pass through the U-shaped brackets and the front fork frame, and washers are used to distribute pressure and achieve fixation. However, after prolonged use, the bolts are prone to stripping due to the continuous vibration caused by road bumps during riding. Stripped bolts can lead to loosening of the connection structure, causing gaps and wobbling in the front frame access area. This not only reduces the overall connection strength of the frame but also accelerates wear between components. In severe cases, it may cause the connection between the front fork and the frame to fail, posing a significant safety hazard to riders. To address this, we propose a reinforced connection component for the electric bicycle frame. Utility Model Content

[0003] The purpose of this invention is to provide a reinforced connection assembly for electric bicycle frames to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an electric bicycle frame reinforcement connection assembly, including a frame lower beam assembly, the frame lower beam assembly including a rotating rod, two front fork frames, two washers and bolts, a ring fixedly connected to one side of each bolt, an annular groove is formed on the inner surface of each ring, a receiving cavity is formed in the middle of both ends of the rotating rod, and a lifting groove is formed at the upper and lower ends of each receiving cavity; Both ends of the rotating rod are threaded with hexagonal bolts, and the inner ends of the hexagonal bolts are rotatably engaged with rotating shafts, which extend into the inner end of the receiving cavity. One end of each rotating shaft is fixedly connected to a trapezoidal block. The inner end of each lifting groove is slidably engaged with a limit rod, and the wall of each limit rod is fixedly connected to a limit slider. A return spring is fixedly connected between each limit slider and the lifting groove, and one end of each limit rod is fixedly connected to an arc-shaped ring.

[0005] Preferably, both of the gaskets are located on both sides of the U-shaped latch of the fork frame.

[0006] Preferably, both of the arc-shaped rings are engaged in the annular groove.

[0007] Preferably, one side of the hexagonal bolt is open.

[0008] Preferably, the outer diameter of the limiting slider is matched with the inner diameter of the lifting groove.

[0009] Preferably, the bottom end of the limiting rod is an inclined surface that is tangent to the trapezoidal block.

[0010] Compared with the prior art, the beneficial effects of this utility model are: by setting a ring and annular groove on one side of the bolt, and combining the anti-loosening structure such as hexagonal bolts, trapezoidal blocks, limit rods and arc rings in the rotating rod, a double fixing guarantee is formed, which effectively solves the problem of traditional bolt connections being prone to stripping due to long-term riding vibration, avoids loosening of the connection, shaking and wear of parts, and significantly improves the connection stability and durability of the front frame access area. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model; Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the disassembled structure of this utility model.

[0012] In the diagram: 1. Rotary rod; 11. Front fork frame; 12. Washer; 13. Bolt; 130. Ring; 103. Annular groove; 101. Receiving cavity; 102. Lifting groove; 2. Hex bolt; 21. Rotary shaft; 22. Trapezoidal block; 3. Limiting rod; 31. Limiting slider; 32. Return spring; 33. Arc ring. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] like Figures 1-4 As shown, this utility model provides the following technical solution: Example 1: Electric bicycle frame reinforcement connection assembly, including frame lower beam assembly, the frame lower beam assembly includes a rotating rod 1, two front fork frames 11, two washers 12 and bolts 13, the two washers 12 are located on both sides of the U-shaped bracket of the front fork frame 11.

[0015] The rotating rod 1 and the U-shaped frame (front fork frame 11) are rotatably connected through a steering bearing assembly. The inner ring of the bearing fixes the rotating rod 1, and the outer ring is adapted to the mounting groove of the U-shaped frame to ensure smooth tire steering.

[0016] In use, first align the U-shaped latches of the two front fork 11 with the preset connection positions on the lower frame of the bicycle frame. Then, attach the two washers 12 to both sides of the U-shaped latches, ensuring that the washers 12 completely cover the connection contact surface to distribute the force. Next, insert the bolts 13 through the bolt holes of the washers 12 and the front fork 11, and tighten the bolts 13 until the front fork 11 and the lower frame of the bicycle frame are tightly fitted together, completing the fixed assembly of the lower frame assembly. The rotating rod 1 achieves a stable connection between the front fork 11 and the frame, ensuring the transmission of force during riding.

[0017] Example 2: The technical solution that differs from Example 1 in this example includes: a ring 130 is fixedly connected to one side of the bolt 13, and an annular groove 103 is opened on the inner surface of the ring 130. A receiving cavity 101 is opened in the middle of both ends of the rotating rod 1, and a lifting groove 102 is opened at the upper and lower ends of the receiving cavity 101. Both ends of the rotating rod 1 are threaded with hexagonal bolts 2. The inner ends of the hexagonal bolts 2 are rotatably engaged with rotating shafts 21, which extend into the inner end of the receiving cavity 101. One end of the rotating shafts 21 is fixedly connected to a trapezoidal block 22. The inner end of the lifting groove 102 is slidably engaged with a limiting rod 3. The wall of the limiting rod 3 is fixedly connected with a limiting slider 31. A return spring 32 is fixedly connected between the limiting slider 31 and the lifting groove 102. One end of the limiting rod 3 is fixedly connected with an arc-shaped ring 33. Both arc-shaped rings 33 are engaged in an annular groove 103. One side of the hexagonal bolts 2 is open. The outer diameter of the limiting slider 31 matches the inner diameter of the lifting groove 102. The bottom end of the limiting rod 3 is inclined and tangent to the trapezoidal block 22.

[0018] In use, the fork frame 11, the washer 12, and the bolt 13 are initially assembled as in Embodiment 1, so that the ring 130 on one side of the bolt 13 is in the corresponding position at both ends of the rotating rod 1. Then, the hexagonal bolt 2 on the rod wall of the rotating rod 1 is rotated, which drives the rotating shaft 21 and the trapezoidal block 22 to move into the receiving cavity 101. The trapezoidal block 22 presses the limiting rod 3 through the inclined surface, causing the limiting rod 3 to slide outward along the lifting groove 102. The limiting slider 31 simultaneously stretches the return spring 32. When the arc ring 33 is inserted into the annular groove 103 of the ring 130, the rotation of the hexagonal bolt 2 is stopped, realizing the anti-loosening locking of the bolt 13, avoiding bolt stripping due to vibration during long-term use, and improving the stability and durability of the connecting components.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electric bicycle frame reinforcement connection assembly, including a frame lower beam assembly, the frame lower beam assembly including a pivot (1), two front fork brackets (11), two washers (12) and bolts (13), characterized in that: One side of each bolt (13) is fixedly connected to a ring (130), and the inner ring surface of each ring (130) is provided with an annular groove (103). Both ends of the rotating rod (1) are provided with a receiving cavity (101), and the upper and lower ends of the receiving cavity (101) are provided with a lifting groove (102). Both ends of the rotating rod (1) are threaded with hexagonal bolts (2), and the inner ends of the hexagonal bolts (2) are rotatably engaged with rotating shafts (21), which penetrate into the inner end of the receiving cavity (101). One end of the rotating shaft (21) is fixedly connected with a trapezoidal block (22). The inner end of the lifting groove (102) is slidably engaged with a limiting rod (3). The wall of the limiting rod (3) is fixedly connected with a limiting slider (31). A return spring (32) is fixedly connected between the limiting slider (31) and the lifting groove (102). One end of the limiting rod (3) is fixedly connected with an arc-shaped ring (33).

2. The electric bicycle frame reinforcement connection assembly according to claim 1, characterized in that: Both of the aforementioned gaskets (12) are located on both sides of the U-shaped bayonet of the fork frame (11).

3. The electric bicycle frame reinforcement connection assembly according to claim 1, characterized in that: Both of the arc-shaped rings (33) are locked in the annular grooves (103).

4. The electric bicycle frame reinforcement connection assembly according to claim 1, characterized in that: The hexagonal bolt (2) has an open side.

5. The electric bicycle frame reinforcement connection assembly according to claim 1, characterized in that: The outer diameter of the limiting slider (31) is matched with the inner diameter of the lifting groove (102).

6. The electric bicycle frame reinforcement connection assembly according to claim 1, characterized in that: The bottom end of the limiting rod (3) is an inclined surface that is tangent to the trapezoidal block (22).

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