WO2016000110A1 - Semi-automatic opening and closing device for electric folding bicycle - Google Patents

Abstract

Disclosed is a semi-automatic opening and closing device for an electric folding bicycle, wherein a pedal (1) is flexibly connected with a handlebar frame (2); a seat supporting rod (6) is flexibly connected with the pedal (1); the seat supporting rod (6) is provided with a lock tongue (8); a left wheel frame (3) and a right wheel frame (4) are flexibly connected to a rear end of the pedal (1); magnets (10) are provided on a binding surface between the left wheel frame (3) and the right wheel frame (4); and a magnetic coil (11) is provided between the two attracted magnets (10). The part between the pedal (1) and the handlebar frame (2) is foldable, and the part between the wheel frames (3, 4) and the pedal (1) is foldable; and after being folded, the wheel frames (3, 4) are turned over to a bottom surface of the pedal (1), and two rear wheels (21, 22) are respectively arranged on two sides of a front wheel (13). The folding process has a high degree of automation, is convenient and labor-saving, decreases the folded volume of the bicycle to a relatively large extent, and reduces the occupied space.

Description

 Semi-automatic opening and closing device for electric folding bicycle  Semi-automatic opening and closing device for electric folding bicycle

 Technical field

 The invention belongs to the field of folding bicycle accessories, and in particular relates to a semi-automatic opening and closing device for an electric folding bicycle.

 Background technique

The electric folding bike has the advantages of being foldable, easy to handle, and easy to carry. It does not need to use external tools during folding, and the vehicle can be folded or unfolded by hand. After folding, it can be conveniently stored and moved to avoid outdoor storage. Unsafe hidden dangers.

At present, most electric folding bicycles have the same appearance as bicycles or are modified by bicycles. The front and rear ends of the pedals are respectively provided with a front wheel frame and a rear wheel frame, the front wheel frame is equipped with a front wheel, and the rear wheel frame is equipped with a rear wheel. A folding portion is arranged in the middle of the frame so that the frame can be folded laterally with the folding portion as a fulcrum, that is, the front wheel is folded toward the rear wheel. The front frame is overlapped with the rear wheel frame to shorten the length of the frame.

However, the folding process of the existing frame is cumbersome, the folding and unfolding process is laborious, the degree of automation is low, and the use is inconvenient; the distance from the folded portion to the front wheel frame and the rear wheel frame is not the same, so that the front wheel frame and the rear wheel frame are folded. The length of the rear is reduced, but the width is widened, so the volume is not reduced, and the front and rear wheel frames cannot be adjusted, and the front and rear wheels are misaligned between the front and rear wheels. .

 Invention content

 The problem to be solved by the present invention is to provide a semi-automatic opening and closing device for an electric folding bicycle After the wheel frame is folded, the two rear wheels are respectively arranged on both sides of the front wheel to avoid misalignment before and after, the folding process is simple, and the operation is labor-saving.

 The present invention is achieved by the following technical solutions: design A semi-automatic opening and closing device for an electric folding bicycle, characterized in that the pedal is movably connected to the handlebar frame, the seat support rod is movably connected with the pedal, the seat support rod is provided with a lock tongue, and the left wheel frame and the right wheel frame are connected At the rear end of the pedal, a magnet is arranged on the bonding surface between the left wheel frame and the right wheel frame, and an electromagnetic coil is arranged between the two magnets, and a magnet is arranged in the top surface of the pedal, and the corresponding position of the handlebar frame is also A magnet is arranged, an electromagnetic coil is arranged between the two magnets, a return spring is arranged between the lock tongue and the pedal, a magnet is arranged on the lock arm, and a corresponding magnet is arranged at the pedal position, and between the two magnets An electromagnetic coil is disposed, and a magnet is disposed on a bottom surface of the left wheel frame and the right wheel frame, and a magnet is disposed at a position corresponding to the pedal, and an electromagnetic coil is disposed between the two magnets, the magnet is provided with a mounting groove, and the electromagnetic coil is disposed at the installation. a slot, the surface of the magnet except the corresponding surface is covered with a high magnetic permeability material, and the folding suction surface of the electric folding bicycle is provided with a silicone cushion. The left wheel frame and the right wheel frame are correspondingly provided with an electromagnet and a magnet, and the electromagnet realizes magnetic pole conversion through a reverse switch, the electromagnetic coil energizing wire passes through the inside of the vehicle body, and the electromagnetic coil is provided with a trigger switch, including a contact switch and an inductive switch.

 The beneficial effects of the present invention are:

 1 The folding rear wheel frame is folded over the bottom surface of the pedal, and the two rear wheels are respectively arranged on both sides of the front wheel to form a stable plane, so that the vehicle can stand on the ground, which greatly reduces the folding volume of the vehicle and reduces Take up space, easy to move or store a magnet is arranged on the bonding surface between the left wheel frame and the right wheel frame, and an electromagnetic coil is arranged between the two magnets. When the vehicle is in operation, the left and right wheel frames are attracted together by the opposite attraction of the magnet, and the left and right wheel structures are combined. As a whole bracket, when the folding is required, the switch is pressed, the electromagnetic coil is energized, and the repulsive magnetic pole is generated. Under the same-sex repulsive action, the left and right wheel frames are automatically separated during the folding process. The folding and unfolding process is highly automated, responsive, and saves time and effort.

 2, the use of electromagnetic coil + magnet combination of low economic cost, simple to manufacture, replaced by electromagnet, strong magnetic, systemic.

 3. The left and right wheel frame brackets are provided with magnets for clamping, so as to avoid separation between the left wheel frame and the right wheel frame in case of accidental conditions in the riding state.

 4 It is also possible to provide magnets on the left wheel frame and the right wheel frame, and magnets are also arranged corresponding to the fitting positions of the pedals. After the vehicle is folded, the two wheel carriers can be attached to both sides of the pedal to avoid the wheel frame being opened by its own weight in the folded state.

 5 In order to enhance the technical effect, the surface of the magnet except for its corresponding surface is covered with a high magnetic permeability material to prevent the magnet from radiating nuclear to other parts of the electric vehicle; in order to prevent the suction force from being excessively generated when the magnet is sucked, the shock is too high. The force will reduce the service life of the device. The folding suction surface of the electric folding bicycle is provided with a silicone cushion; for the appearance and appearance coordination, the wiring is smooth, and the position of the hollow body is fully utilized to set the electric wire, and the electromagnetic coil is energized from the vehicle. The internal passage of the body; the use of the inductive switch is an alternative to this case, without the need to manually operate the button, the sensor sensing signal is transmitted to the controller, the controller controls the power supply, the electromagnetic coil is energized, and the repulsive magnetic pole is generated, under the same-sex repulsive action Automatic separation greatly reduces the human involvement process.

 DRAWINGS

 Figure 1 is a schematic view of the present invention

 Figure 2 is a schematic diagram of the left rear wheel of the present invention

 3 is a schematic structural view of a bottom surface of a pedal of the present invention;

 Figure 4 is a schematic view showing the connection of the front wheel bracket and the pedal according to the present invention;

 Figure 5 is a schematic cross-sectional view showing the left and right wheel frames folded toward the bottom surface of the pedal according to the present invention;

 6 is a schematic structural view of a switch wire of the present invention;

 Figure 7 is a schematic view showing the locking structure of the seat support rod;

 Figure 8 is a schematic diagram of the lock tongue structure

 Figure 9 is a schematic diagram of the suction structure of the left and right wheel frames

 Figure 10 is a schematic diagram of the folding structure of the pedal and the handlebar frame

 Figure 11 shows the structure of the installation slot

 In the figure: 1, pedal; 2, handlebar frame; 3, left wheel frame; 4, right wheel frame; 5, seat; 6, seat support rod; 7, bumps; 8, lock tongue; 9, arms; 10, magnets; 11, electromagnetic coils; 12, electromagnets; 13, front wheels; 14, front wheel brackets; High Permeability Material 17 Silicone Cushion 18 Sensor 19 Switch 20 Wire 21 Left Rear Wheel 22 Right Rear Wheel.

 detailed description

 As shown, the present invention The pedal 1 is movably connected to the handlebar frame 2, the pedal 1 can be folded toward the handlebar frame 2, the seat support lever 6 is movably coupled to the pedal 1, and the seat support bar 6 can be folded toward the pedal 1, the seat support bar 6 A locking tongue 8 is provided for locking the seat support bar 6, the left wheel frame 3 and the right wheel frame 4 are movably connected to the rear end of the pedal 1, and the left wheel frame 3 and the right wheel frame 4 can be folded toward the bottom surface of the pedal 1. The folded rear wheel frame is folded over the bottom surface of the pedal 1 and the two rear wheels are respectively arranged on the front wheel 13 On both sides, a stable plane is formed, so that the vehicle can stand on the ground, which greatly reduces the folding volume of the vehicle, reduces the occupied space, and is convenient for moving or storing. The magnet 10 is disposed on the bonding surface between the left wheel frame 3 and the right wheel frame 4, and the electromagnetic coil 11 is disposed between the two magnets 10, and the left and right wheel frames are attracted by the opposite attraction of the magnet 10 during the running state of the vehicle. Together, the left and right wheel frames constitute an integral bracket, and when the folding is required, the switch 19 is pressed, and the electromagnetic coil 11 is energized to generate a repulsive magnetic pole. The left and right wheel frames are automatically separated during the folding process under the same-sex repulsive action. .

 The magnet 10 has the characteristics of 'same-sex repelling, opposite-sex attracting', and the two poles of the magnet 10 are extremely N-pole S, specifically, N and s attracts, NN replies SS replies. For example, the left wheel frame 3 magnet N pole is outward, the right wheel frame 4 is correspondingly set to s pole outward, and the electromagnetic coil 11 is set to N of the left wheel frame 3, for example. When the electromagnetic coil 11 is not working, the left and right wheel frames are attracted, and the electromagnetic coil 11 is magnetic when energized, and its N pole is opposite to the N pole of the left wheel carrier 3, and its S pole and the right wheel frame 4 s Extremely opposite, the right wheel frame 4 is automatically opened under the repulsive action.

 A magnet 10 is disposed in the top surface of the pedal 1, and a magnet 10 is also disposed at a position where the handlebar frame 2 is attached. The electromagnetic coil 11 is disposed between the two magnets 10, and the pedal and the handlebar frame 2 are sucked together by the magnet 10 when folded into position to prevent the self-weight from being opened from the folded state. When the expansion is required, the electromagnetic coil 11 is energized to generate a phase. Repelling the magnetic pole, the pedal 1 and the handlebar frame 2 are automatically separated under the same-sex repulsive action .

The lock tongue 8 is movably connected to the pedal 1. The lock tongue arm 9 is provided with a magnet 10, and the corresponding pedal 1 is also provided with a magnet 10, and an electromagnetic coil 11 is disposed between the two attracted magnets 10. When the lock arm 9 and the pedal 1 are attracted together by the magnet 10, the lock tongue 8 locks the seat support rod 6, and the seat support rod 6 bears against the projection 7 of the front wheel bracket 14, and the driver can sit on the seat. When the chair 5 is riding, when the folding is required, the electromagnetic coil 11 is energized to generate a repulsive magnetic pole, and the pedal 1 and the bolt arm 9 are automatically separated under the same-sex repulsive action, and the seat support rod 6 is protruded from the front wheel bracket 14 7 is disengaged, the seat support bar 6 and the handlebar frame 2 are simultaneously unlocked, and the folding of the seat support bar 6 toward the pedal 1 and the folding of the pedal 1 toward the handlebar frame 2 can be performed. .

A reset spring is disposed between the lock tongue 8 and the pedal 1 and is separated. When the external force disappears, the lock tongue 8 can be automatically reset under the action of the spring, the lock tongue arm 9 is provided with the magnet 10, and the pedal fitting position is provided with the electromagnet 12, When energized, the electromagnet 12 generates a magnetic pole opposite to the magnet 10, and automatically disengages the lock tongue 8. When the energization disappears, the lock tongue 8 is automatically reset by the action of the spring.

The magnets 10 are disposed on the bottom surfaces of the left wheel frame 3 and the right wheel frame 4, and the magnets 10 are also disposed at the bonding positions of the pedals 1, and the electromagnetic coils 11 are disposed between the two magnets 10 that are attracted. When the left and right wheel frames are folded toward the bottom surface of the pedal 1 and are sucked together under the action of the magnet 10, when the expansion is required, the electromagnetic coil 11 is energized to generate a repulsive magnetic pole, and the pedal 1 and the left and right wheel frames are automatically separated under the same repulsion. .

 The magnet 10 is provided with a mounting groove 15, the electromagnetic coil 11 is disposed at a notch of the mounting groove 15, and the electromagnetic coil 11 is mounted outside the magnet 10.

In order to enhance the technical effect, the surface of the magnet 10 other than its corresponding surface is covered with a high magnetic permeability material 16 to prevent the magnet 10 from radiating to other components of the electric vehicle. The high magnetic permeability material 16 includes metals and non-metals, and is preferably iron in the case of economy and effect.

In order to prevent the shock from being excessively generated when the magnet 10 is sucked, an excessive impact force may lower the service life of the device, and the folding suction surface of the electric folding bicycle is provided with a silicone cushion 17.

 As an alternative to the present case, the left wheel frame 3 and the right wheel frame 4 are correspondingly provided with an electromagnet 12 and a magnet 10, and an electromagnet 12 The pole switching is realized by the reverse switch, and the reverse switch controls the direction of the magnetic pole by reversing the direction of the energizing coil. When the pickup is required, the magnetic pole of the electromagnet 12 and the magnet 10 are extremely magnetic, and the isotropic magnetic pole is required to be separated.

 Specifically, for example, the left wheel frame 3 is provided with a magnet 10, the s pole is outward, the right wheel frame 4 is provided with an electromagnet 12, and the electromagnet is required to be engaged 12 is energized, the magnetic pole opposite to the left wheel frame is n pole, the left and right wheel frames are sucked together; when it needs to be separated, the reverse switch controls the magnetic pole to turn to s by reversing the energizing direction of the electromagnet 12 Extremely, the left and right wheel frames are arranged. By the same token, the combination of magnet + solenoid can be replaced with an electromagnet.

In order to make the appearance beautiful and harmonious, the wiring is unobstructed, and the energizing wire 20 is provided by fully utilizing the position of the hollow body of the vehicle body, and the energizing wire 20 of the electromagnetic coil 11 passes through the inside of the vehicle body.

The electromagnetic coil 11 is provided with a trigger switch including a contact switch and an inductive switch. The use of the inductive switch is an alternative to the present invention. Instead of manually operating the button, the sensor 18 is used to sense the signal to the controller. The controller controls the power supply to be turned on, and the electromagnetic coil 11 is energized to generate a repulsive magnetic pole, which is automatically separated under the same-sex repulsive action.

 When the state of use is used, the electric folding cart is in an unfolded state, and the left and right wheel frames are sucked together by the magnet 10, the tongue arm 9 and the pedal 1 When sucked together, the locking tongue 8 bears against the seat support rod 6, and the end of the seat support rod 6 penetrates into the protrusion 7 of the front wheel bracket 14 to withstand the handlebar frame 2, the seat support rod 6, and the handlebar frame 2, pedal 1 The three are locked.

 When folding is required, the switch 19 is opened, and the electromagnetic coil 11 between the tongue 9 and the pedal 1 is energized to generate a repulsive action, and the seat support rod 6, the handlebar frame 2, the pedal 1 are unlocked, the electromagnetic coil 11 between the left and right brackets is energized to produce a repulsive effect, and the folded side is separated to the two sides; when folded to a certain extent, the left and right wheel frames and the bottom surface of the pedal 1 are magnetized 10 Pull together and pedal 1 and handlebar 2 are attracted together by magnet 10.

 When expansion is required, open switch 19, solenoid between pedal 1 and handlebar 2 11 The energization generates a repulsive action, and the electromagnetic coil 11 between the left and right wheel frames and the bottom surface of the pedal 1 is energized to generate a repulsive effect, the handlebar frame 2, the pedal 1 The left and right wheel frames can be separated. When folded to a certain extent, the magnets 10 between the left and right wheel frames are brought into action, the tongues 9 are sucked together with the pedals 1, and the tongues 8 are supported against the seat supports. Rod 6 The seat support bar 6 is held against the handlebar frame 2, the seat support bar 6, the handlebar frame 2, and the pedal 2 are locked, and the user can sit on the seat 5 to ride.

 The wheel carrier of the solution is an extended wheel frame, and the length thereof is lengthened. After the two wheel frames are closed with the pedal 1 , the left rear wheel 21 and the right rear wheel 22 are closed. It can just be arranged on both sides of the front wheel 13, and realizes three wheels side by side and side by side, which greatly reduces the space occupied by the three wheels, and has a smaller volume after folding, and is hand-drawn. The handlebar frame can pull the vehicle forward, which is convenient and labor-saving. In terms of appearance, the left wheel frame 3 and the right wheel frame 4 are combined into one wheel frame, and the left rear wheel 21 and the right rear wheel 22 are combined into one wheel.

 When the vehicle is deployed, the left wheel frame 3 and the right wheel frame 4 are deployed to the outside of the pedal 1 to fold the pedal 1 toward the ground. The left wheel frame 3 and the right wheel frame 4 are stretched and merged into one integral wheel frame, and the left rear wheel 11 and the right rear wheel 12 are combined into one integral rear wheel.

 The handlebar frame 14 is provided with a folding handlebar, and the handlebar can be bent and attached to both sides of the handlebar frame 14, thereby optimizing the folding volume of the vehicle.

 It should be noted that the above embodiments are merely preferred embodiments of the present invention, and those skilled in the art are in accordance with the present invention. On the premise of the working principle, any equivalent or similar substitutions fall within the scope of the present invention.

Claims (10)

1. A semi-automatic opening and closing device for an electric folding bicycle, characterized in that the pedal is movably connected to the handlebar frame, the seat support rod is movably connected with the pedal, the seat support rod is provided with a lock tongue, and the left wheel frame and the right wheel frame are connected At the rear end of the pedal, a magnet is disposed on the bonding surface between the left wheel frame and the right wheel frame, and an electromagnetic coil is disposed between the two magnets.
2. The semi-automatic opening and closing device for an electric folding bicycle according to claim 1, wherein a magnet is arranged in the top surface of the pedal, and a matching magnet is disposed at a position corresponding to the handlebar frame, and the two magnets are attracted. Set the electromagnetic coil between.
3. A semi-automatic opening and closing device for an electric folding bicycle according to claim 1 or 2, wherein a reset spring is disposed between the lock tongue and the pedal, and a magnet is disposed on the lock arm, and a pedal position corresponding thereto is also A magnet is provided, and an electromagnetic coil is disposed between the two magnets that are attracted.
4. The semi-automatic opening and closing device for an electric folding bicycle according to claim 3, wherein a magnet is disposed on a bottom surface of the left wheel frame and the right wheel frame, and a magnet is disposed on a corresponding position of the pedal, and two magnets are attracted. Set the electromagnetic coil between.
5. A semi-automatic opening and closing device for an electric folding bicycle according to claim 1 or 2 or 4, wherein the magnet is provided with a mounting groove, the electromagnetic coil is disposed at the slot of the mounting slot, and the electromagnetic coil is mounted outside the magnet.
6. A semi-automatic opening and closing device for an electric folding bicycle according to claim 1 or 2 or 4, wherein the surface of the magnet other than its corresponding surface is covered with a high magnetic permeability material.
7. The semi-automatic opening and closing device for an electric folding bicycle according to claim 1 or 2 or 4, wherein the folding suction surface of the electric folding bicycle is provided with a silicone cushion.
8. A semi-automatic opening and closing device for an electric folding bicycle according to claim 1 or 2 or 4, wherein The electromagnet and the magnet are arranged correspondingly to the left wheel frame and the right wheel frame, and the electromagnet is converted by the reverse polarity switch.
9. A semi-automatic opening and closing device for an electric folding bicycle according to claim 1 or 2 or 4, wherein the electromagnetic coil energizing wire passes through the inside of the vehicle body.
10. A semi-automatic opening and closing device for an electric folding bicycle according to claim 1 or 2 or 4, wherein the electromagnetic coil is provided with a trigger switch including a contact switch and an inductive switch.

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