S-shaped rear fork type electric bicycle frame

Abstract

The utility model relates to the field of electric bicycle frames, in particular to an S-shaped rear fork type electric bicycle frame. Comprising a head pipe, a main beam pipe is installed on one side of the head pipe, a widened self-locking folder is installed at the end, away from the head pipe, of the main beam pipe, a reinforcing middle pipe is installed on the side, away from the main beam pipe, of the widened self-locking folder, a reinforcing rod is installed at the lower end of the reinforcing middle pipe, and a bottom bracket is arranged between the reinforcing rod and the reinforcing middle pipe. An S-shaped rear fork support is installed at the end, away from the reinforcing middle pipe, of the reinforcing middle pipe, a bottom keyboard is installed in the S-shaped rear fork support, a chain is installed on the arc face of the bottom keyboard and installed on the arc face of the five-way joint, and an integrated battery box is fixedly connected to the upper surface of the reinforcing rod. The S-shaped rear fork type electric bicycle frame has the advantages that a folding bicycle is easy to fold, and the battery capacity of a rented bicycle is large.

Description

Technical Field

[0001] The utility model relates to the field of electric bicycle frames, in particular to an S-rear fork type electric bicycle frame. Background Art

[0002] As society develops, urban traffic has become more congested. People prefer electric bicycles for their convenience, which has led to large-scale irregular parking and charging, resulting in frequent fires. The government has begun to pay attention to the standardization of electric bicycle charging and parking, and vigorously built public charging and parking areas to ensure safety.

[0003] The inventors have found in their daily work that in the process of using electric bicycles, there are special requirements for the difference between designated electric bicycles and traditional electric bicycles, namely, the electric bicycles must be folded small, thin, short, and have a short wheelbase, and the public batteries for rental are generally large.

[0004] Therefore, it is necessary to provide a new S rear fork type electric bicycle frame to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an S-rear fork type electric bicycle frame.

[0006] In order to solve the above technical problems, the utility model provides an S-rear fork type electric bicycle frame, comprising: a head tube, a main beam tube is installed on one side of the head tube, a widened self-locking folder is installed on the end of the main beam tube away from the head tube, a reinforced middle tube is installed on the side of the widened self-locking folder away from the main beam tube, a reinforcing rod is installed on the lower end of the reinforced middle tube, a five-way is arranged between the reinforcing rod and the reinforced middle tube, an S-shaped rear fork bracket is installed on the end of the reinforced middle tube away from the reinforced middle tube, a bottom keyboard is installed inside the S-shaped rear fork bracket, a chain is installed on the arc surface of the bottom keyboard, and the chain is installed on the arc surface of the five-way, an integrated battery box is fixedly connected to the upper surface of the reinforcing rod, a lateral shock absorber is fixedly connected to the side of the integrated away from the reinforced middle tube, the lateral shock absorber is installed on the S-shaped rear fork bracket, a rear shelf is installed on the upper end of the S-shaped rear fork bracket, a rotating shaft is installed between the S-shaped rear fork bracket and the reinforcing rod, a seat cushion is arranged on the upper surface of the rear shelf, and a connecting component is arranged between the seat cushion and the rear shelf.

[0007] The effects achieved by the above components are: the integrated battery box is connected to the middle tube to form an integrated frame to make the car smaller, the bottom keyboard is installed at the bottom of the battery box, narrower than the box body so that the car is not too wide, and the S-shaped rear fork bracket is designed as a lateral shock absorber device, which subverts the traditional structure that the shock absorber must be installed upwardly slanted. Its force direction changes. When the car goes over the speed bump and the spring is pressed back, the elastic force is a forward thrust, which makes the car more stable and reduces energy consumption. The lateral shock absorber is installed at the rounded corner of the rear wheel and does not take up space, which solves the advantage of the car being more stable and foldable. A special advantage of the lateral shock absorber is that the working stroke does not need to be so long, so the short shock absorber has the comfort of a long-stroke shock absorber.

[0008] Preferably, the connecting component includes a slide groove, which is opened on the rear shelf, and the inner wall of the slide groove is slidably connected with a connecting block, and the connecting block and the connecting block are fixedly connected with elastic blocks on both sides, and the inner wall of the slide groove is opened with two card slots, and the card slots are card-connected with the elastic blocks, and the upper end of the connecting block is fixedly connected to the seat cushion.

[0009] The effect achieved by the above components is: when the seat cushion needs to be installed, pull the connecting block to move, the connecting block drives the elastic block to move, and then pull the connecting block to the upper end of the slide slot, and then align the connecting block with the slide slot, and then insert the connecting block into the slide slot, the slide slot squeezes the elastic block, and after moving to the appropriate position, the elastic block is snapped into the slot for fixation.

[0010] Preferably, a sliding rod is fixedly connected inside the sliding groove, and the sliding rod is slidably connected to the connecting block.

[0011] The effects achieved by the above components are: the slide bar can limit the connection block, which can make the seat cushion installation faster.

[0012] Preferably, a sealing gasket is fixedly connected to the interior of the slide groove, and the sealing gasket is a rubber gasket.

[0013] The effect achieved by the above components is that the sealing gasket can reduce the gap between the connecting block and the sliding groove.

[0014] Preferably, the reinforcing rod is fixedly connected to the reinforcing middle tube by welding.

[0015] Preferably, the bottom keyboard is installed at the bottom of the battery box and is narrower than the box body so that the car is not too wide.

[0016] Compared with the related art, the S-type rear fork electric bicycle frame provided by the utility model has the following beneficial effects:

[0017] The utility model provides an S-rear fork type electric bicycle frame, in which an integrated battery box is connected to a middle tube to form an integrated frame to make the vehicle smaller, a bottom keyboard is installed at the bottom of the battery box, which is narrower than the box body so that the vehicle is not too wide, and the S-shaped rear fork bracket is designed as a lateral shock absorber device, which subverts the structure that the traditional shock absorber must be installed upwardly slanted, and its force direction changes when the vehicle passes over a speed bump and the spring is pressed back to its position, and the elastic force is a forward thrust so that the vehicle is more stable and reduces energy consumption, and the lateral shock absorber is installed at the rounded corner of the rear wheel and does not take up space, which solves the advantages of the vehicle being more stable and foldable smaller. A special advantage of the lateral shock absorber is that the working stroke does not need to be so long, so that the short shock absorber also has the comfort effect of a long-stroke shock absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of an S-type rear fork electric bicycle frame provided by the utility model;

[0019] Figure 2 for Figure 1 The enlarged view of point A is shown;

[0020] Figure 3 for Figure 1 A schematic diagram of the connected components shown;

[0021] Figure 4 for Figure 3 An enlarged view of point B is shown.

[0022] Numbers in the figure: 1. head tube; 2. main beam tube; 3. widened self-locking folder; 4. reinforced middle tube; 5. integrated battery box; 6. rear shelf; 7. S-shaped rear fork bracket; 8. rotating shaft; 9. bottom keyboard; 10. reinforcement rod; 11. bottom bracket; 12. lateral shock absorber; 13. chain; 14. connecting assembly; 141. slide groove; 142. connecting block; 143. elastic block; 144. slide rod; 145. slot; 146. sealing gasket; 15. seat cushion. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0025] See also Figures 1 to 4The utility model provides an S-shaped rear fork type electric bicycle frame, comprising: a head tube 1, a main beam tube 2 is installed on one side of the head tube 1, a widened self-locking folder 3 is installed on the end of the main beam tube 2 away from the head tube 1, a reinforced middle tube 4 is installed on the side of the widened self-locking folder 3 away from the main beam tube 2, a reinforcing rod 10 is installed on the lower end of the reinforced middle tube 4, a five-way 11 is arranged between the reinforcing rod 10 and the reinforced middle tube 4, an S-shaped rear fork bracket 7 is installed on the end of the reinforced middle tube 4 away from the reinforced middle tube 4, and a bottom keyboard is installed inside the S-shaped rear fork bracket 7 9, a chain 13 is installed on the arc surface of the bottom keyboard 9, and the chain 13 is installed on the arc surface of the five-way 11. An integrated battery box 5 is fixedly connected to the upper surface of the reinforcing rod 10, and a lateral shock absorber 12 is fixedly connected to the side of the integrated reinforcing middle tube 4 away from the reinforcing middle tube 4. The lateral shock absorber 12 is installed on the S-shaped rear fork bracket 7, and a rear rack 6 is installed on the upper end of the S-shaped rear fork bracket 7. A rotating shaft 8 is installed between the S-shaped rear fork bracket 7 and the reinforcing rod 10. A seat cushion 15 is arranged on the upper surface of the rear rack 6, and a connecting component 14 is provided between the seat cushion 15 and the rear rack 6. The integrated battery box 5 is connected to the middle tube to form an integrated frame to make the car smaller. The bottom keyboard 9 is installed at the bottom of the battery box, which is narrower than the box body so that the car is not too wide. The S-shaped rear fork bracket is designed as a lateral shock absorber 12 device, which subverts the structure that the traditional shock absorber must be installed upwardly inclined. Its force changes when the car passes the speed bump. When the spring is pressed back, the elastic force is forward thrust, so that the car is more stable and reduces energy consumption. The lateral shock absorber 12 is installed at the rounded corner of the rear wheel and does not take up space. It solves the advantages of the car being more stable and foldable. A special advantage of the device 12 is that the working stroke does not need to be that long, so a short shock absorber also has the comfort of a long-stroke shock absorber. The connecting component 14 includes a slide groove 141, and the slide groove 141 is opened on the rear rack 6. The inner wall of the slide groove 141 is slidably connected with a connecting block 142. The connecting block 142 and the two sides of the connecting block 142 are fixedly connected with elastic blocks 143. The inner wall of the slide groove 141 is provided with two card grooves 145, which are carded with the elastic block 143, and the upper end of the connecting block 142 is fixedly connected to the seat cushion 15. When the seat cushion 15 needs to be installed, the connection block 142 is pulled to move, and the connection block 142 drives the elastic block 143 to move, and then the connection block 142 is pulled to the upper end of the slide slot 141, and then the connection block 142 is aligned with the slide slot 141, and then the connection block 142 is inserted into the slide slot 141, and the slide slot 141 squeezes the elastic block 143. After moving to a suitable position, the elastic block 143 is clamped into the clamping slot 145 for fixing, and the slide slot 141 is fixedly connected with a slide rod 144 inside, and the slide rod 144 is slidably connected with the connection block 142. The slide rod 144 can limit the connection block 142, and the seat cushion 15 can be installed more quickly. The slide slot 141 is fixedly connected with a sealing pad 146 inside, and the sealing pad 146 is a rubber pad.The sealing gasket 146 can reduce the gap between the connecting block 142 and the slide groove 141. The reinforcing rod 10 is fixedly connected to the reinforcing middle tube 4 by welding. The bottom keyboard 9 is installed at the bottom of the battery box and is narrower than the box body so that the car is not too wide.

[0026] The working principle of an S-type rear fork electric bicycle frame provided by the utility model is as follows: an integrated battery box 5 is connected to the middle tube to form an integrated frame to make the car smaller, the bottom keyboard 9 is installed at the bottom of the battery box, which is narrower than the box body so that the car is not too wide, and the S-type rear fork bracket is designed as a lateral shock absorber 12 device, which subverts the traditional structure that the shock absorber must be installed upwardly slanted, and its force direction changes. When the car passes over the speed bump and the spring is pressed back to its position, the elastic force is a forward thrust, which makes the car more stable and reduces energy consumption. The lateral shock absorber 12 is installed at the rounded corner of the rear wheel and does not take up space, which solves the advantage of the car being more stable and foldable. A special advantage of the lateral shock absorber 12 is that the working stroke does not need to be so long, so the short shock absorber also has the comfort of a long-stroke shock absorber.

[0027] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An S-type rear fork electric bicycle frame, characterized in that: include: A head tube (1), a main beam tube (2) is installed on one side of the head tube (1), a widened self-locking folder (3) is installed on one end of the main beam tube (2) away from the head tube (1), a reinforced middle tube (4) is installed on one side of the widened self-locking folder (3) away from the main beam tube (2), a reinforcing rod (10) is installed on the lower end of the reinforced middle tube (4), a five-way (11) is arranged between the reinforcing rod (10) and the reinforced middle tube (4), an S-shaped rear fork bracket (7) is installed on one end of the reinforced middle tube (4) away from the reinforced middle tube (4), a bottom keyboard (9) is installed inside the S-shaped rear fork bracket (7), and the arc surface of the bottom keyboard (9) is installed A chain (13) is provided, the chain (13) being mounted on the arc surface of the five-way joint (11); an integrated battery box (5) is fixedly connected to the upper surface of the reinforcing rod (10); a lateral shock absorber (12) is fixedly connected to the side of the integrated battery box away from the reinforcing middle tube (4); the lateral shock absorber (12) is mounted on an S-shaped rear fork bracket (7); a rear rack (6) is mounted on the upper end of the S-shaped rear fork bracket (7); a rotating shaft (8) is mounted between the S-shaped rear fork bracket (7) and the reinforcing rod (10); a seat cushion (15) is provided on the upper surface of the rear rack (6); and a connecting component (14) is provided between the seat cushion (15) and the rear rack (6).

2. The S-type rear fork electric bicycle frame according to claim 1, characterized in that: The connecting assembly (14) comprises a slide groove (141), wherein the slide groove (141) is provided on the rear shelf (6), the inner wall of the slide groove (141) is slidably connected with a connecting block (142), the connecting block (142) and both sides of the connecting block (142) are fixedly connected with elastic blocks (143), the inner wall of the slide groove (141) is provided with two clamping grooves (145), the clamping grooves (145) are clamped with the elastic blocks (143), and the upper end of the connecting block (142) is fixedly connected with the seat cushion (15).

3. The S-type rear fork electric bicycle frame according to claim 2, characterized in that: A sliding rod (144) is fixedly connected inside the sliding groove (141), and the sliding rod (144) is slidably connected to the connecting block (142).

4. The S-type rear fork electric bicycle frame according to claim 2, characterized in that: A sealing pad (146) is fixedly connected inside the slide groove (141), and the sealing pad (146) is a rubber pad.

5. The S-type rear fork electric bicycle frame according to claim 1, characterized in that: The reinforcing rod (10) is fixedly connected to the reinforcing middle tube (4) by welding.

6. The S-type rear fork electric bicycle frame according to claim 1, characterized in that: The bottom keyboard (9) is installed at the bottom of the battery box, and the width of the bottom keyboard (9) is narrower than the width of the box body.

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