CN210521723U

CN210521723U - Roller skating device

Info

Publication number: CN210521723U
Application number: CN201920908555.4U
Authority: CN
Inventors: 李增洋; 乔万阳; 冯涛; 甄旭彬
Original assignee: Ninebot Beijing Technology Co Ltd
Current assignee: Ninebot Beijing Technology Co Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-05-15
Anticipated expiration: 2029-06-17

Abstract

The utility model provides a skidding device, include: the battery pack comprises a main shell, a plurality of battery bins are arranged in the main shell, and the battery bins are arranged at intervals; the battery module comprises a plurality of battery modules, the battery modules are arranged in one-to-one correspondence with the battery bins, and each battery module is arranged in the corresponding battery bin. The utility model discloses a high problem of the whole height of skidding device among the prior art has been solved to the skidding device.

Description

Roller skating device

Technical Field

The utility model relates to a skidding or instrument technical field of riding instead of walk particularly, relates to a skidding device.

Background

The roller skates are mainly divided into a speed type and an operation type as an entertainment tool or a walking tool, the two types of roller skates are basically consistent in structural form and comprise skate bodies, wheel carriers arranged on soles and a plurality of rollers, and the difference is that the number, the size and the arrangement of the rollers have certain difference according to the difference of use purposes. In the using process, the electric vehicle is driven by the manpower of an operator. However, this driving method has certain limitations, and the long-term use thereof causes physical fatigue.

In order to solve the above problems, a roller skate has been proposed, which senses the posture of a driver on a pedal through a sensor and controls the movement of a driving roller skate through a driving element and a controller.

However, the power supply in the roller skating device is installed and supports the plurality of batteries by using the integral installation frame, and the installation frame extends from the front end to the rear end of the roller skating device, so that the occupied space is large (particularly in the vertical direction), the overall height of the roller skating device is high, and the cost of the installation frame is high.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a roller skate apparatus to solve the overall height of the roller skate apparatus in the prior art.

In order to achieve the above object, the present invention provides a roller skate apparatus, including: the battery pack comprises a main shell, a plurality of battery bins are arranged in the main shell, and the battery bins are arranged at intervals; the battery module comprises a plurality of battery modules, the battery modules are arranged in one-to-one correspondence with the battery bins, and each battery module is arranged in the corresponding battery bin.

Further, the plurality of battery compartments includes a first battery compartment and a second battery compartment; the plurality of battery modules comprise a first battery module and a second battery module, the first battery module is arranged in the first battery bin and detachably connected with the bin wall of the first battery bin, and the second battery module is arranged in the second battery bin and detachably connected with the bin wall of the second battery bin.

Further, the main shell body is provided with a front end and a rear end which are oppositely arranged along the first preset direction, and the first battery compartment and the second battery compartment are arranged at intervals along the first preset direction.

Furthermore, the main shell is provided with a first accommodating groove, the first accommodating groove is formed in the top end of the main shell, and the first battery compartment and the second battery compartment are both located in the first accommodating groove; the main casing body still includes supporting baseplate, and supporting baseplate is the tank bottom of first holding tank, and supporting baseplate includes the bulge to make first battery compartment and second battery compartment interval set up through the bulge.

Further, the roller device further includes: the movable wheel is arranged on one side, far away from the first accommodating groove, of the supporting bottom plate, and the protruding portion is matched with the outer edge of the movable wheel, so that at least part of the movable wheel is arranged in an avoiding space formed by the protruding portion.

Further, the roller device includes: and the control module is arranged in the main shell and positioned above the plurality of battery modules, and the plurality of battery modules are used for supplying power to the control module.

Further, the roller device further includes: the pedal is covered on the main shell.

Further, the main shell body is provided with a first side wall and a second side wall which are arranged oppositely, and the roller skating device further comprises two side cover plates, wherein one side cover plate is arranged on the first side wall, and the other side cover plate is arranged on the second side wall.

Further, the roller device further includes: and a handle member coupled to the main housing, the handle member being disposed on at least one of a front end and a rear end of the main housing.

Further, the roller device further includes: the handle part is connected with the main shell, the handle part is matched with the main shell, the pedal and the two side cover plates, one end of the handle part is clamped between the first side wall, the pedal and one side cover plate, and the other end of the handle part is clamped between the second side wall, the pedal and the other side cover plate.

Further, the roller device further includes: the pedal is provided with a first clamping groove matched with the first lamp body part, so that when the pedal is covered on the main shell, at least part of the first lamp body part is clamped in the first clamping groove; and/or, the roller device further comprises: the second lamp body part, the second lamp body part sets up the rear end at the main casing body, be provided with the fourth holding tank on the main casing body, the second lamp body part matches with the fourth holding tank and suits, at least part setting of second lamp body part is in the fourth holding tank, the footboard has and matches with the second lamp body part and establishes the groove with the second card that suits to when the footboard lid is established on the main casing body, make at least part card of second lamp body part establish in the second card establishes the groove.

The utility model discloses a skidding device is through setting up the battery compartment that a plurality of intervals set up to place in corresponding battery compartment for each battery module, avoided the adoption to span the front end of the main casing body and the whole mounting bracket of rear end to support a plurality of batteries, reduced battery module's occupation space, and then reduced the whole height of skidding device, be convenient for realize the reasonable overall arrangement of the space in the skidding device.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

figure 1 shows an exploded view of a roller skate according to the present invention;

fig. 2 shows a cross-sectional view of a partial structure of a roller skate according to the present invention;

fig. 3 shows a top view of a partial structure of the roller skate according to the present invention;

figure 4 shows a perspective view of the main housing of the skate according to the present invention;

figure 5 shows a top view of the main housing of the skate according to the present invention;

figure 6 shows a front view of the main housing of the skate according to the present invention;

figure 7 shows a bottom view of the main housing of the skate according to the present invention;

figure 8 shows a front view of a handle part of the roller skate according to the present invention;

figure 9 shows a schematic view of a handle part of a roller skate according to the present invention;

figure 10 shows a schematic view of another angle of the handle part of the roller skate according to the present invention;

figure 11 shows a front view of a pedal of a roller skate according to the present invention;

figure 12 shows a perspective view of a pedal of a roller skate according to the present invention;

figure 13 shows a bottom view of the tread plate of the skate according to the present invention;

fig. 14 shows an exploded view of a battery module of the wheel slide apparatus according to the present invention;

fig. 15 shows a perspective view of a battery module of the wheel slide apparatus according to the present invention.

Wherein the figures include the following reference numerals:

10. a main housing; 11. a first battery compartment; 12. a second battery compartment; 13. a first accommodating groove; 14. avoiding a space; 15. a support base plate; 151. a projection; 16. a first side wall; 17. a second side wall; 18. a third accommodating groove; 19. a fourth accommodating groove; 20. A moving wheel; 30. a control module; 40. a first battery module; 50. a second battery module; 60. a pedal; 61. a first clamping groove; 62. a second clamping groove; 63. a first side plate; 64. a second side plate; 65. a support plate; 70. a side cover plate; 80. a handle member; 81. a grip portion; 82. a first connection portion; 83. a second connecting portion; 90. a first positioning portion; 91. a first positioning projection; 92. a first positioning assembly; 93. a second positioning assembly; 110. a second lamp body part; 120. a second positioning portion; 121. a first positioning hole; 122. a third positioning assembly; 123. a fourth positioning assembly; 130. a grabbing groove; 140. a limiting bulge;

41. a battery; 411. a first battery; 412. a second battery; 413. a third battery; 42. mounting the component; 422. an accommodation hole; 423. a first support frame; 424. a second support frame; 425. inserting the opening; 426. a stop opening; 427. a stopper portion; 428. a fixing assembly; 429. a first fixing member; 430. a second fixing member; 431. a second fastening hole; 432. a third connecting portion; 433. an installation part; 434. a first groove; 435. a second groove; 441. a first conductive sheet; 442. a second conductive sheet; 443. a third conductive sheet; 444. a fourth conductive sheet; 445. a fifth conductive sheet; 446. a sixth conductive sheet; 447. a seventh conductive sheet; 448. an eighth conductive sheet; 45. a first insulating member; 46. a second insulating member; 47. a fastener.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The utility model provides a roller skating device please refer to fig. 1 to fig. 15, include: the battery pack comprises a main shell 10, wherein a plurality of battery bins are arranged in the main shell 10 and are arranged at intervals; the battery module comprises a plurality of battery modules, the battery modules are arranged in one-to-one correspondence with the battery bins, and each battery module is arranged in the corresponding battery bin.

The utility model discloses a skidding device is through setting up the battery compartment that a plurality of intervals set up to place in corresponding battery compartment for each battery module, avoided the adoption to span the front end of main casing body 10 and the whole mounting bracket of rear end to support a plurality of batteries, reduced battery module's occupation space, and then reduced the whole height of skidding device, be convenient for realize the rational overall arrangement of the space in the skidding device.

The battery modules of the roller skating device are arranged in a split mode and do not need to be connected through the connecting structures, the connecting structures are prevented from occupying the space in the height direction of the roller skating device, and the height of the roller skating device is further reduced.

In the present embodiment, the plurality of battery compartments include a first battery compartment 11 and a second battery compartment 12; the plurality of battery modules include a first battery module 40 and a second battery module 50, the first battery module 40 is disposed in the first battery compartment 11 and detachably connected to a compartment wall of the first battery compartment 11, and the second battery module 50 is disposed in the second battery compartment 12 and detachably connected to a compartment wall of the second battery compartment 12.

In specific implementation, the fool-proof rib is arranged on the first battery module 40 or the second battery module 50, so that the first battery module and the second battery module are prevented from being installed incorrectly.

In the present embodiment, the main housing 10 has a front end and a rear end disposed oppositely in the first predetermined direction, and the first battery compartment 11 and the second battery compartment 12 are disposed at an interval in the first predetermined direction. Wherein, the first predetermined direction is the moving direction of the roller skating device.

In specific implementation, the main housing 10 has a first receiving groove 13, the first receiving groove 13 is formed at the top end of the main housing 10, and the first battery compartment 11 and the second battery compartment 12 are both located in the first receiving groove 13; the main housing 10 further includes a supporting bottom plate 15, the supporting bottom plate 15 is a bottom of the first receiving groove 13, and the supporting bottom plate 15 includes a protrusion 151 to allow the first battery compartment 11 and the second battery compartment 12 to be spaced apart by the protrusion 151.

In this embodiment, the roller skate further includes a moving wheel 20 disposed on a side of the support base 15 away from the first receiving groove 13, and the protrusion 151 is fitted to an outer edge of the moving wheel 20 such that at least a portion of the moving wheel 20 is disposed in the escape space 14 formed by the protrusion 151.

Preferably, the protrusion 151 is an arc-shaped plate which is convexly disposed toward the top end of the main housing 10.

In order to drive the moving wheel 20, the wheel slide apparatus includes a control module 30 disposed in the main housing 10 above a plurality of battery modules for supplying power to the control module 30.

In this embodiment, the roller skate apparatus further includes a pedal 60, and the pedal 60 is covered on the main housing 10.

In the present embodiment, the main housing 10 has a first side wall 16 and a second side wall 17 which are oppositely arranged, and the roller skating device further includes two side covers 70, one side cover 70 is arranged on the first side wall 16, and the other side cover 70 is arranged on the second side wall 17.

In order to facilitate the carrying by the user, the roller skate apparatus further includes a handle member 80, the handle member 80 being coupled to the main housing 10, the handle member 80 being provided on at least one of the front and rear ends of the main housing 10.

Preferably, the handle part 80 is made of a silicone material, which not only ensures the strength and hardness of the handle part and improves the user experience, but also ensures the appearance fit gap to be beautiful.

In this embodiment, the roller device further includes a handle member 80, the handle member 80 is connected to the main housing 10, the handle member 80 is adapted to fit the main housing 10, the pedal 60 and the two side covers 70, one end of the handle member 80 is clamped between the first side wall 16, the pedal 60 and one side cover 70, and the other end of the handle member 80 is clamped between the second side wall 17, the pedal 60 and the other side cover 70.

In specific implementation, the main housing 10 is provided with a first positioning portion 90; the handle member 80 includes a holding portion 81 and a connecting portion, the holding portion 81 is connected to the connecting portion, and the connecting portion is provided with a second positioning portion 120 engaged with the first positioning portion 90, so that the handle member 80 is disposed on the main housing 10 by the engagement between the second positioning portion 120 and the first positioning portion 90.

In specific implementation, the first positioning portion 90 includes a first positioning component 92 and a second positioning component 93, and the first positioning component 92 and the second positioning component 93 are oppositely disposed on the main housing 10; the connecting part comprises a first connecting part 82 and a second connecting part 83, and the first connecting part 82 and the second connecting part 83 are oppositely arranged at two ends of the holding part 81; the second positioning portion 120 includes a third positioning member 122 and a fourth positioning member 123, the third positioning member 122 is disposed on the first connecting portion 82, and the fourth positioning member 123 is disposed on the second connecting portion 83; the first positioning assembly 92 is disposed to cooperate with the third positioning assembly 122, and the second positioning assembly 93 is disposed to cooperate with the fourth positioning assembly 123, so that the handle member 80 is disposed on the main housing 10.

In specific implementation, the first positioning component 92 includes a first positioning protrusion 91, the third positioning component 122 includes a first positioning hole 121, and the first positioning hole 121 is disposed on the first positioning protrusion 91, so that the handle component 80 is disposed on the main housing 10.

In specific implementation, the handle part 80 is provided with a limiting portion, and the limiting portion is disposed on the connecting portion to limit the movement of the handle part 80 relative to the main housing 10 through the limiting portion.

In specific implementation, the pedal 60 includes a first side plate 63, a second side plate 64 and a support plate 65, the first side plate 63 and the second side plate 64 are both connected with the support plate 65, and the first side plate 63 and the second side plate 64 are oppositely disposed at two ends of the support plate 65; the limiting part is a limiting protrusion 140, and at least one of the first side plate 63 and the second side plate 64 is abutted against the limiting protrusion 140 to limit the movement of the handle part 80.

In specific implementation, the side cover plate 70 is located between the first side plate 63 and the second side plate 64, and a third positioning portion engaged with the second positioning portion 120 is disposed on the side cover plate 70, so that the side cover plate 70, the handle component 80, and the main housing 10 are connected and disposed through engagement between the third positioning portion and the second positioning portion 120.

In this embodiment, the roller device further includes a locking member, an external thread section is disposed on the locking member, the first positioning portion 90 includes a first positioning protrusion 91, an internal thread hole matched with the external thread section is disposed on the first positioning protrusion 91, the second positioning portion 120 includes a first positioning hole 121, the third positioning portion includes a second positioning hole, the first positioning hole 121 is disposed on the first positioning protrusion 91, the locking member sequentially passes through the second positioning hole, the first positioning hole 121 is connected with the first positioning protrusion 91, so that the side cover 70 and the handle member 80 are fixed on the main housing 10.

To facilitate the gripping and movement of the skate, the bottom of the main housing 10 is provided with a gripping groove 130, and the gripping groove 130 is adapted to be matched with a human hand, so that the skate is moved by the human hand being inserted into the gripping groove 130 and passing through the gripping groove 130 and the grip member 80. The grasping slot 130 is shaped to fit exactly four fingers of a human hand.

In this embodiment, the roller skating device further includes a first lamp body component disposed at the front end of the main housing 10, the main housing 10 is provided with a third receiving groove 18, the first lamp body component is adapted to the third receiving groove 18, at least a portion of the first lamp body component is disposed in the third receiving groove 18, and the pedal 60 has a first engaging groove 61 adapted to the first lamp body component, so that at least a portion of the first lamp body component is engaged in the first engaging groove 61 when the pedal 60 is covered on the main housing 10. The arrangement is convenient for the roller skating device to be used at night, improves the safety performance, and can simplify the assembly process while ensuring the assembly effect.

In this embodiment, the skating device further includes a second lamp body part 110, the second lamp body part 110 is disposed at the rear end of the main housing 10, the main housing 10 is provided with a fourth receiving groove 19, the second lamp body part 110 is matched with the fourth receiving groove 19, at least a portion of the second lamp body part 110 is disposed in the fourth receiving groove 19, and the pedal 60 has a second engaging groove 62 matched with the second lamp body part 110, so that when the pedal 60 is covered on the main housing 10, at least a portion of the second lamp body part 110 is engaged in the second engaging groove 62. The arrangement is convenient for the roller skating device to be used at night, improves the safety performance, and can simplify the assembly process while ensuring the assembly effect.

In this embodiment, the roller skating device further includes an anti-collision component, the anti-collision component is disposed on a side portion of the main housing 10, and the anti-collision component protrudes from the main housing 10 to protect the roller skating device through the anti-collision component. Such arrangement effectively protects the handle part 80 and the main housing 10 from gouges; and the mismatching of the anti-collision assembly and the main shell 10 caused by the tightening force when the lock screw is locked is effectively avoided.

In one embodiment, a battery module includes a battery module body including: a plurality of batteries 41, the plurality of batteries 41 being connected in series in this order; the mounting assembly 42 is used for fixing the plurality of batteries 41, the mounting assembly 42 includes two support frames, each of the two support frames has a plurality of accommodating holes 422, the plurality of accommodating holes 422 are arranged in one-to-one correspondence with the plurality of batteries 41, and each battery 41 is inserted into the corresponding accommodating hole; the two support frames comprise a first support frame 423 and a second support frame 424, the first support frame 423 and the second support frame 424 are arranged oppositely, one end of the battery 41 is inserted into the first support frame 423, and the other end of the battery 41 is inserted into the second support frame 424; the first support bracket 423 and the second support bracket 424 are detachably connected.

The utility model discloses a battery module includes installation component 42, installation component 42 includes first support frame 423 and second support frame 424, this battery module is through setting up first support frame 423 in the one end of a plurality of batteries 41, second support frame 424 sets up the other end at a plurality of batteries 41, and first support frame 423 and second support frame 424 detachably connect, can realize fixing a plurality of batteries 41, and then realized the unified placing and the installation of a plurality of batteries, reduced battery module's volume and occupation space; when the battery module is placed in the roller skating device, the occupation of the space in the roller skating device is reduced, and the overall height of the roller skating device is further reduced.

In the present embodiment, the accommodating hole 422 has an insertion opening 425 and a stopper opening 426 which are oppositely provided, and the battery 41 is inserted into the accommodating hole 422 through the insertion opening 425; a stopper 427 is provided at the stopper opening 426 so that the stopper 427 blocks a part of the opening of the stopper opening 426 to stop the battery 41 by the stopper 427. The arrangement has the advantages that the battery can be stopped, and the battery can be fixed.

In specific implementation, the supporting frame has a first end and a second end which are oppositely arranged, the inserting opening 425 is formed in the first end of the supporting frame, and the stopping opening 426 is formed in the second end of the supporting frame; a stopper 427 is provided at the second end of the support bracket to stop a partial opening of the stop opening 426 of each receiving hole.

To enable the removable connection of the first support bracket 423 and the second support bracket 424, the mounting assembly 42 further includes a securing assembly 428, the securing assembly 428 being connected to both the first support bracket 423 and the second support bracket 424, the first support bracket 423 and the second support bracket 424 being removably connected by the securing assembly 428.

In particular implementation, the securing assembly 428 includes: a first fixing member 429 provided on the first support frame 423, the first fixing member 429 having a first fastening hole; and a second fixing member 430 disposed on the second support bracket 424, the second fixing member 430 having a second fastening hole 431, and the first fixing member 429 and the second fixing member 430 being connected by a fastening member 47 sequentially inserted in the first fastening hole and the second fastening hole 431.

In order to ensure the reliability of the connection between the first support bracket 423 and the second support bracket 424, the fixing assemblies 428 are plural, and the plural fixing assemblies 428 are arranged at intervals around the circumference of the plural batteries 41.

In order to mount the control module, so that the battery module supplies power to the control module, a third connecting part 432 is provided on the supporting frame, and the third connecting part 432 is used for connecting with the control module.

In order to realize the installation and fixation of the battery module, the support frame is provided with an installation part 433, and the installation part 433 is used for being connected with the bin wall of the battery bin.

In one embodiment, the battery module main body includes three batteries 41, the three batteries 41 include a first battery 411, a second battery 412, and a third battery 413, and a positive terminal of the first battery 411, a positive terminal of the second battery 412, and a negative terminal of the third battery 413 are inserted into the first support frame 423; the battery module body further comprises a first conducting strip 441, a second conducting strip 442, a third conducting strip 443 and a fourth conducting strip 444, the first conducting strip 441 is connected with the positive end of the first battery 411, the negative end of the first battery 411 and the positive end of the second battery 412 are both connected with the second conducting strip 442, and the negative end of the second battery 412 and the positive end of the third battery 413 are both connected with the third conducting strip 443; the fourth conductive sheet 444 is connected to the negative terminal of the third battery 413 so that the first battery 411, the second battery 412, and the third battery 413 are connected in series in this order.

In order to reduce the occupied space of the battery module, the support frame has three receiving holes 422, and the three receiving holes 422 are uniformly arranged around a predetermined center line; wherein, the extending direction of the predetermined center line is the same as the extending direction of the receiving hole 422.

In specific implementation, the supporting frame has a first groove 434 and a second groove 435; the battery module main body further comprises a fifth conducting strip 445 and a sixth conducting strip 446, the fifth conducting strip 445 is connected with the first conducting strip 441, and the fifth conducting strip 445 is attached to the bottom of the first groove 434 of the first support 423; the sixth conductive sheet 446 is connected to the third conductive sheet 443, and the sixth conductive sheet 446 is attached to the bottom of the second groove 435 of the first support frame 423.

In specific implementation, the supporting frame has a first groove 434 and a second groove 435; the battery module body further comprises a seventh conducting strip 447 and an eighth conducting strip 448, the seventh conducting strip 447 is connected with the second conducting strip 442, and the seventh conducting strip 447 is attached to the bottom of the second groove 435 of the second support frame 424; the eighth conducting strip 448 is connected to the fourth conducting strip 444, and the eighth conducting strip 448 is attached to the bottom of the first groove 434 of the second supporting frame 424.

In this embodiment, the battery module further includes a first insulating member 45 attached to one end of the first supporting frame 423 away from the second supporting frame 424 to cover the first conductive sheet 441 and the third conductive sheet 443; and/or the second insulator 46 is attached to one end of the second support frame 424 away from the first support frame 423 to cover the second conductive sheet 442 and the fourth conductive sheet 444. Such an arrangement serves as an insulator.

In specific implementation, the first insulating member 45 and the second insulating member 46 are both insulating paper; preferably, the first insulating member 45 and the second insulating member 46 are both PC sheets.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A roller skate apparatus, comprising:

the battery pack comprises a main shell (10), wherein a plurality of battery bins are arranged in the main shell (10), and are arranged at intervals;

the battery module comprises a plurality of battery modules, the battery modules are arranged in one-to-one correspondence with the battery bins, and each battery module is arranged in the corresponding battery bin.

2. A roller skate according to claim 1 characterized in that said plurality of battery compartments comprises a first battery compartment (11) and a second battery compartment (12); the plurality of battery modules comprise a first battery module (40) and a second battery module (50), the first battery module (40) is arranged in the first battery bin (11) and detachably connected with the bin wall of the first battery bin (11), and the second battery module (50) is arranged in the second battery bin (12) and detachably connected with the bin wall of the second battery bin (12).

3. A roller skate according to claim 2 characterized in that said main housing (10) has oppositely disposed front and rear ends in a first predetermined direction, said first battery compartment (11) and said second battery compartment (12) being spaced apart in said first predetermined direction.

4. A roller skate according to claim 2 characterized in that said main housing (10) has a first receiving slot (13), said first receiving slot (13) opening at the top end of said main housing (10), said first battery compartment (11) and said second battery compartment (12) both being located within said first receiving slot (13); the main casing body (10) still includes supporting baseplate (15), supporting baseplate (15) is the tank bottom of first holding tank (13), supporting baseplate (15) include bulge (151) to make through bulge (151) first battery compartment (11) with second battery compartment (12) interval sets up.

5. A pulley device according to claim 4, characterized in that the pulley device further comprises:

the moving wheel (20) is arranged on one side, far away from the first accommodating groove (13), of the supporting base plate (15), and the protruding portion (151) is matched with the outer edge of the moving wheel (20) so that at least part of the moving wheel (20) is arranged in an avoiding space (14) formed by the protruding portion (151).

6. A roller skate according to claim 1 wherein said skate comprises:

a control module (30) disposed within the main housing (10) and above the plurality of battery modules, the plurality of battery modules being for supplying power to the control module (30).

7. A pulley device according to any one of claims 1 to 6, further comprising:

the pedal (60) is covered on the main shell (10).

8. A pulley arrangement according to claim 7, wherein the main housing (10) has oppositely disposed first (16) and second (17) side walls, the pulley arrangement further comprising:

two side cover plates (70), one side cover plate (70) is arranged on the first side wall (16), and the other side cover plate (70) is arranged on the second side wall (17).

9. A roller skate as defined in claim 1 further comprising:

a handle part (80), the handle part (80) being connected with the main housing (10), the handle part (80) being provided on at least one of a front end and a rear end of the main housing (10).

10. A pulley device according to claim 8, characterized in that the pulley device further comprises:

a handle part (80), handle part (80) with main casing body (10) are connected, handle part (80) with main casing body (10) footboard (60) and two side cover board (70) match and are fit for, the one end card of handle part (80) is established first lateral wall (16), footboard (60) and one between side cover board (70), the other end card of handle part (80) is established second lateral wall (17), footboard (60) and another between side cover board (70).

11. A pulley device according to claim 7, characterized in that the pulley device further comprises:

the lamp body comprises a first lamp body part, a second lamp body part and a pedal, wherein the first lamp body part is arranged at the front end of the main shell body (10), a third accommodating groove (18) is formed in the main shell body (10), the first lamp body part is matched with the third accommodating groove (18), at least part of the first lamp body part is arranged in the third accommodating groove (18), the pedal (60) is provided with a first clamping groove (61) matched with the first lamp body part, and when the pedal (60) is covered on the main shell body (10), at least part of the first lamp body part is clamped in the first clamping groove (61); and/or the presence of a gas in the gas,

second lamp body part (110), second lamp body part (110) sets up the rear end of the main casing body (10), be provided with fourth holding tank (19) on the main casing body (10), second lamp body part (110) with fourth holding tank (19) match and fit, the at least part setting of second lamp body part (110) is in fourth holding tank (19), footboard (60) have with second lamp body part (110) match and fit second card establishes groove (62), in order when footboard (60) lid is established on the main casing body (10), make at least partial card of second lamp body part (110) establish in second card establishes groove (62).