Electric roller skate

Abstract

The utility model provides an electric roller skate with high cruising ability, which comprises a rear base plate, a boss is arranged at the front end of the rear base plate, a cavity front base plate is arranged in the rear base plate, a groove for accommodating the boss is arranged at the rear end of the front base plate, and the front base plate is rotatably connected with the rear base plate; the walking device comprises a motor, a rear wheel assembly installed on the lower portion of the rear chassis and a front wheel assembly installed on the lower portion of the front chassis, and the motor drives the front wheel assembly and / or the rear wheel assembly to rotate; and the battery pack is arranged in the cavity, and the battery pack supplies energy to the motor.

Description

Technical Field

[0001] The utility model belongs to the field of sports equipment, and in particular relates to an electric roller skate. Background Art

[0002] In order to allow users to walk more freely when using electric roller skates, the applicant divides the chassis of the electric roller skates into a front chassis and a rear chassis, and sets the front chassis and the rear chassis to be rotatably connected. The applicant found that such a setting reduces the length of the rear chassis, making it difficult to arrange a battery pack of sufficient volume on the rear chassis, resulting in insufficient battery life of the electric roller skates. Utility Model Content

[0003] In view of the above-mentioned defects or shortcomings of the prior art, the utility model provides an electric roller skate with long endurance.

[0004] The electric roller skates provided by the utility model include a rear chassis, a boss is provided at the front end of the rear chassis, and a cavity is provided inside the rear chassis; a front chassis, a groove for accommodating the boss is provided at the rear end of the front chassis, and the front chassis and the rear chassis are rotatably connected; a walking device, the walking device includes a motor, a rear wheel assembly installed at the lower part of the rear chassis, and a front wheel assembly installed at the lower part of the front chassis, the motor drives the front wheel assembly and / or the rear wheel assembly to rotate; and a battery pack, the battery pack is arranged in the cavity, and the battery pack supplies energy to the motor.

[0005] The roller skates provided by the utility model are rotatably connected with the front chassis and the rear chassis, so that when the user lifts the heel off the ground, the rear wheel assembly below the rear chassis is also lifted off the ground, and the front wheel assembly below the front chassis is still in contact with the ground, thereby providing sufficient resistance for the user to push off the ground. In addition, by providing a boss at the front of the rear chassis and a groove for accommodating the boss on the front chassis, the boss is a part of the rear chassis, and a part of the cavity is provided in the boss, thereby increasing the volume of the cavity in the rear chassis, so that more battery packs can be loaded in the cavity, thereby improving the endurance of the electric roller skates.

[0006] Optionally, the front chassis is provided with swivel seats extending toward the rear chassis on both sides of the groove opening, and swing arms extending upward are provided on both sides of the front of the rear chassis, and a central axis is passed between the swivel seat and the swing arms.

[0007] Optionally, the upper portion of the swing arm is provided with a protrusion extending toward the front chassis, and the protrusion supports the lower surface of the rear portion of the front chassis.

[0008] Optionally, the rear wheel assembly includes a first rear wheel assembly arranged at the front part of the rear chassis and a second rear wheel assembly arranged at the rear part of the rear chassis, the wheelbase of the front wheel assembly is smaller than the wheelbase of the first rear wheel assembly or there is only one front wheel in the front wheel traveling assembly, and when the rear chassis rotates upward relative to the front chassis to leave the ground, the front wheel assembly and the first rear wheel assembly are in contact with the ground at the same time.

[0009] Optionally, the battery pack includes a plurality of cylindrical batteries whose length direction is parallel to the front-to-back direction of the rear chassis, and the plurality of batteries are arranged along the front-to-back direction and the left-to-right direction of the rear chassis.

[0010] Optionally, the front wheel assembly includes a front wheel bracket installed at the lower part of the front chassis, a front wheel axle installed on the front wheel bracket, and front wheels arranged at both ends of the front wheel axle; the front wheel axle and the front wheel bracket are provided with a ratchet structure so that the front wheel can only move forward.

[0011] Optionally, the rear wheel assembly includes a rear wheel axle installed at the lower part of the rear chassis and rear wheels installed at both ends of the rear wheel axle, and axle seats for extending the rear wheel axle are provided on both sides of the rear chassis, and the swing arm is installed on the axle seat for extending the rear wheel axle of the first rear wheel assembly.

[0012] Optionally, the motor drives at least the first rear wheel assembly and the second rear wheel assembly to rotate, or the motor drives the front wheel assembly and at least the first rear wheel assembly to rotate, or the motor drives the front wheel assembly and at least the second rear wheel assembly to rotate.

[0013] Optionally, the rear chassis includes a rear chassis body and a cover plate, the rear chassis body is provided with a cavity with an opening facing upward, and the cover plate covers the opening of the rear chassis body to form the cavity.

[0014] Optionally, a rear sole is arranged above the rear chassis, and a rear upper is arranged above the rear sole; a front sole is arranged above the front chassis, and a front upper is arranged above the front sole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0016] Figure 1 Side view of electric roller skates;

[0017] Figure 2 Bottom view of the electric roller skates;

[0018] Figure 3 Figure 2 Enlarged view of the circle shown;

[0019] Figure 4 An exploded view of some of the components of an electric roller skate;

[0020] Figure 5 Figure 4 Enlarged view of the circle shown;

[0021] Figure 6 A diagram of the electric roller skates (without the rear sole, front upper and rear upper) with the cover opened. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0023] It should be noted that if the implementation methods of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, if there are descriptions involving "first", "second", etc. in the implementation of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various implementations can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0025] like Figures 1 to 6 As shown, the electric roller skates provided in this embodiment include a rear chassis 2, a boss 24 is provided at the front end of the rear chassis 2, and a cavity is provided in the rear chassis 2; a front chassis 1, a groove 16 for accommodating the boss 24 is provided at the rear of the front chassis 1, and the front chassis 1 and the rear chassis 12 are rotatably connected; a walking device, the walking device includes a motor 5, a rear wheel assembly installed at the lower part of the rear chassis 2 and a front wheel assembly installed at the lower part of the front chassis 1, the motor 5 drives the front wheel assembly and / or the rear wheel assembly to rotate; and a battery pack 6, the battery pack 6 is arranged in the cavity, and the battery pack 6 supplies energy to the motor 5.

[0026] The electric roller skates provided in this embodiment have a front chassis and a rear chassis rotatably connected, so that when the user lifts the heel off the ground, the rear wheel assembly under the rear chassis is also lifted off the ground, and only the front wheel assembly under the front chassis remains in contact with the ground, thereby providing sufficient resistance for the user to push off the ground.

[0027] In addition, by providing a boss at the front end of the rear chassis and a groove for receiving the boss at the rear end of the front chassis, the boss moves in the groove during the rotation of the rear chassis relative to the front chassis. The boss is a part of the rear chassis, and a part of the cavity is contained in the boss, thereby increasing the volume of the cavity in the rear chassis, so that more battery packs can be loaded in the cavity, thereby improving the battery life of the electric roller skates. In this embodiment, according to the normal length of the electric roller skates, only 4 batteries can be placed. After the battery compartment is extended by providing a boss in front of the rear shoe body, 6 batteries can be placed, thereby improving the battery life of the electric roller skates by 50%.

[0028] The groove 16 is in a square shape, and the boss 24 is in a square shape that matches the groove 16. Of course, the boss and the groove can also be set to other shapes as needed.

[0029] The front chassis 1 is provided with swivel seats 14 extending toward the rear chassis 2 on both sides of the opening of the groove 16 , and swing arms 25 extending upward are provided on both sides of the front portion of the rear chassis 2 . A central axis 15 is passed between the swivel seat 14 and the swing arms 25 .

[0030] In this embodiment, the swing arm and the swivel seat are connected by rotation through the central axis to realize the rotation connection between the front chassis and the rear chassis. There are two groups of swivel seats, each group has two swivel seats, two swing arms, and two central axes. Axis holes are provided on the swing arm and the swivel seat, each swing arm is located between a group of swivel seats, and each central axis passes through a group of swivel seats and a swing arm.

[0031] The upper part of the swing arm 25 is provided with a protrusion 27 extending toward the front chassis 1, and the protrusion 27 supports the lower surface of the rear part of the front chassis 1. In this example, by providing a protrusion supporting the lower surface of the rear part of the front chassis on the upper part of the swing arm, when the user lifts the entire electric roller skate with his feet, the front chassis is prevented from rotating downward relative to the rear chassis and falling off.

[0032] The two rear wheel assemblies include a first rear wheel assembly arranged at the front of the rear chassis and a second rear wheel assembly arranged at the rear of the rear chassis. The wheelbase of the front wheel assembly is smaller than the wheelbase of the first rear wheel assembly or there is only one front wheel in the front wheel travel assembly. When the rear chassis rotates upward relative to the front chassis to leave the ground, the front wheel assembly and the first rear wheel assembly are in contact with the ground at the same time. There is only one front wheel in the front wheel travel assembly, that is, the front wheel travel assembly only includes a single wheel.

[0033] Since the wheelbase of the front wheel assembly is smaller than the wheelbase of the first rear wheel assembly or there is only one front wheel in the front wheel walking assembly, when the back sole of the user leaves the ground, a triangular support structure is formed between the front wheel assembly and the first rear wheel assembly to provide stable support for the front sole of the user. When the back sole of the user touches the ground, the first rear wheel assembly and the second rear wheel assembly are basically used to provide stable support for the sole of the user. When the user lifts the electric roller skates upward, the first rear wheel assembly and the second rear wheel assembly both leave the ground.

[0034] The lower part of the rear chassis 2 may be provided with only the first rear wheel assembly and the second rear wheel assembly, or may be provided with a plurality of rear wheel assemblies between the first rear wheel assembly and the second rear wheel assembly, the plurality of groups including 1 group, 2 groups or 3 groups. In this embodiment, 2 groups of rear wheel assemblies are provided between the first rear wheel assembly and the second rear wheel assembly. The additional rear wheel assembly can enhance the obstacle surmounting capability of the electric roller skates. In the case where only the first rear wheel assembly and the second rear wheel assembly are provided, the influence on the obstacle surmounting capability of the roller skates can be reduced by reducing the wheelbase of the first rear wheel assembly and the second rear wheel assembly.

[0035] The motor drives at least the first and second rear wheel assemblies in the rear wheel assembly to rotate; or the motor drives at least the first rear wheel assembly in the front wheel assembly and the rear wheel assembly to rotate, or the motor drives at least the second rear wheel assembly in the front wheel assembly and the rear wheel assembly to rotate.

[0036] By such arrangement, the electric roller skates can obtain the power to move forward no matter the electric roller skates are running on the ground normally or when the user lifts the rear chassis off the ground. When the electric roller skates are running on the ground normally, that is, when the angle between the front chassis and the rear chassis is 180 degrees, the electric roller skates either move forward under the power of at least the first rear wheel assembly and the second rear wheel assembly in the rear wheel assembly, or move forward under the power of at least the first rear wheel assembly in the front wheel assembly and the rear wheel assembly, or move forward under the power of at least the second rear wheel assembly in the front wheel assembly and the rear wheel assembly. If the rear chassis is rotated upward relative to the front chassis to be lifted off the ground, the electric roller skates either move forward only under the power of the first rear wheel assembly, or move forward only under the power of the front wheel assembly, or move forward under the power of both the first rear wheel assembly and the front wheel assembly.

[0037] The motor may be a hub motor built into the rear wheel and / or the front wheel, especially when the front wheel assembly has only one front wheel, or one of the rear wheel assemblies has only one rear wheel; the motor may also have a built-in reduction assembly, in which case the motor can directly drive the front wheel assembly and / or the rear wheel assembly to rotate, or drive the front wheel assembly and / or the rear wheel assembly to rotate through a transmission assembly; the motor may also have an external reduction assembly, and drive the front wheel assembly and / or the rear wheel assembly to rotate through a transmission assembly, in which case the reduction assembly and the transmission assembly are the same assembly. The transmission assembly may be, for example, a gear reduction assembly or a belt reduction assembly. The reduction assembly may be, for example, a gear reduction assembly.

[0038] The number of motors is determined according to the driving mode and the setting mode of the reduction assembly. When the motor is a hub motor, one motor is required for each wheel assembly driven; when the motor is a non-hub motor, one motor can drive only one set of rear wheel assemblies, or it can synchronously drive multiple sets of rear wheel assemblies. In the case where at least one set of rear wheel assemblies is set between the first rear wheel assembly and the second rear wheel assembly, the motor can drive only one set of rear wheel assemblies to rotate, or it can synchronously drive two or more sets of rear wheel assemblies to rotate through the transmission assembly. In this embodiment, the motor 5 is arranged on the outer side wall of the rear chassis 2, and there are 4 sets of rear wheel assemblies. A gear box is arranged on the side of the rear chassis, and the motor and the 4 sets of rear wheel assemblies are connected by transmission through the gear box. The gear box includes a driven gear arranged on the rear wheel shaft, a driving gear arranged on the output shaft of the motor, and a transmission gear arranged between the driving gear and the driven gear. The gear box serves as a transmission assembly and a reduction assembly at the same time. The motor 5 synchronously drives multiple sets of rear wheel assemblies to rotate through the gear box.

[0039] The battery pack 6 includes a plurality of cylindrical batteries whose length direction is parallel to the front-to-back direction of the rear chassis 2, and the plurality of batteries are arranged along the front-to-back direction and the left-to-right direction of the rear chassis 2. The front of the front-to-back direction of the rear chassis is the direction in which the electric roller skates move forward, and the left-to-right direction is the two sides of the direction in which the electric roller skates move forward.

[0040] In this example, the battery pack includes 6 cylindrical batteries, which are arranged in 2 columns, each column including 3 batteries. It can also be said that the 6 cylindrical batteries are arranged in 3 rows, each row including 2 batteries. Of course, the cross section of the battery can also be square, that is, the battery is a square cylindrical battery.

[0041] The rear chassis 2 includes a rear chassis body 21 and a cover plate 22. The rear chassis body 21 is provided with a cavity with an opening facing upward, and the cover plate 22 covers the opening of the rear chassis body 21 to form a cavity. The outer periphery of the cover plate 22 is provided with a lug, and the rear chassis body is provided with a first screw hole at the outer periphery of the cavity opening. The screw passes through the lug and is connected to the first screw hole to fix the cover plate on the rear chassis body. In this way, after the cover plate is removed from the rear chassis body, the faulty battery pack can be repaired or replaced. The battery pack is fixed to the substrate by adhesive and tape, and the substrate is mounted on the rear chassis body. The substrate is mounted on the screw hole inside the cavity by screws. That is, the substrate is installed in the cavity.

[0042] The front wheel assembly includes a front wheel bracket 31 installed at the lower part of the front chassis 1, a front wheel axle 33 installed at the front wheel bracket 31, and front wheels 32 arranged at both ends of the front wheel axle 33. A ratchet structure is provided between the front wheel axle 33 and the front wheel bracket 31 so that the front wheel can only move forward.

[0043] The rear wheel assembly includes a rear wheel axle 42 installed at the lower part of the rear chassis 2 and rear wheels 41 installed at both ends of the rear wheel axle 42. Both sides of the rear chassis are provided with axle seats 26 for the rear wheel axle 42 to extend out, and the swing arm 25 is installed on the axle seat 26 for the rear wheel axle 42 of the first rear wheel assembly to extend out.

[0044] A rear sole 81 is arranged above the rear chassis 2, and a rear upper 82 is arranged above the rear sole 81; a front sole 71 is arranged above the front chassis 1, and a front upper 72 is arranged above the front sole 71. The upper and the sole cooperate to fix the user's foot. The front sole is provided with front anti-skid patterns, and the rear sole is provided with rear anti-skid patterns.

[0045] In this embodiment, the rear sole and the front sole are both made of plastic or rubber, the front chassis and the rear chassis are made of metal, the front chassis is fixed to the front chassis by screws, and the rear chassis is fixed to the rear chassis by screws. Of course, the rear sole and the front sole can also be made of metal, and the upper surfaces of the rear sole and the front sole are covered with a non-slip rubber layer.

[0046] In this embodiment, the front upper and the rear upper are lacing structures, for example, the front upper includes a front shoelace, one end of the front shoelace is connected to one side of the front sole in the width direction, and the other end of the front shoelace is connected to the other side of the rear sole in the width direction. The rear upper includes a rear shoelace, one end of the rear shoelace is connected to one side of the rear sole in the width direction, and the other end is connected to the other side of the rear sole in the width direction.

[0047] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the various possible combinations of the embodiments of the present utility model will not be described separately.

Claims

1. An electric roller skate, characterized in that: include: A rear chassis, wherein a boss is provided at the front end of the rear chassis, and a cavity is provided inside the rear chassis; A front chassis, wherein a groove for accommodating the boss is provided at the rear end of the front chassis, and the front chassis is rotatably connected to the rear chassis; A running device, the running device comprising a motor, a rear wheel assembly installed at the lower part of the rear chassis, and a front wheel assembly installed at the lower part of the front chassis, wherein the motor drives the front wheel assembly and / or the rear wheel assembly to rotate; as well as A battery pack is disposed in the cavity, and the battery pack supplies energy to the motor.

2. The electric roller skates according to claim 1, characterized in that: The front chassis is provided with swivel seats extending toward the rear chassis on both sides of the groove opening, and swing arms extending upward are provided on both sides of the front part of the rear chassis, and a central axis is passed between the swivel seat and the swing arms.

3. The electric roller skates according to claim 2, characterized in that: The upper part of the swing arm is provided with a protrusion extending toward the front chassis, and the protrusion supports the lower surface of the rear part of the front chassis.

4. The electric roller skates according to claim 2 or 3, characterized in that: The rear wheel assembly at least comprises a first rear wheel assembly arranged at the front part of the rear chassis and a second rear wheel assembly arranged at the rear part of the rear chassis; The wheelbase of the front wheel assembly is smaller than the wheelbase of the first rear wheel assembly or there is only one front wheel in the front wheel traveling assembly. When the rear chassis rotates upward relative to the front chassis to leave the ground, the front wheel assembly and the first rear wheel assembly are in contact with the ground at the same time.

5. The electric roller skates according to claim 4, characterized in that: The rear wheel assembly includes a rear wheel axle installed at the lower part of the rear chassis and rear wheels installed at both ends of the rear wheel axle. Both sides of the rear chassis are provided with axle seats for the rear wheel axle to extend out, and the swing arm is installed on the axle seat for the rear wheel axle of the first rear wheel assembly to extend out.

6. The electric roller skates according to claim 4, characterized in that: The motor drives at least the first rear wheel assembly and the second rear wheel assembly to rotate, or the motor drives at least the first rear wheel assembly among the front wheel assembly and the rear wheel assembly to rotate, or the motor drives at least the second rear wheel assembly among the front wheel assembly and the rear wheel assembly to rotate.

7. The electric roller skates according to claim 1, characterized in that: The battery pack includes a plurality of cylindrical batteries whose length directions are parallel to the front-to-back direction of the rear chassis, and the plurality of batteries are arranged along the front-to-back direction and the left-to-right direction of the rear chassis.

8. The electric roller skates according to claim 1, characterized in that: The front wheel assembly includes a front wheel bracket installed at the lower part of the front chassis, a front wheel axle installed on the front wheel bracket, and front wheels arranged at both ends of the front wheel axle; a ratchet structure is provided between the front wheel axle and the front wheel bracket so that the front wheel can only move forward.

9. The electric roller skates according to claim 1, characterized in that: The rear chassis comprises a rear chassis body and a cover plate. The rear chassis body is provided with a cavity with an opening facing upwards, and the cover plate covers the opening of the rear chassis body to form the cavity.

10. The electric roller skates according to claim 1, characterized in that: A rear sole is arranged above the rear chassis, and a rear upper is arranged above the rear sole; a front sole is arranged above the front chassis, and a front upper is arranged above the front sole.

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