Telescopic electric suitcase

Abstract

Disclosed is a telescopic electric suitcase, including a suitcase body assembly, a handle assembly, a base assembly, and a front wheel assembly and a rear wheel assembly. A steering assembly is arranged between the handle assembly and the front wheel assembly. The base assembly includes a telescopic outer rod assembly and a telescopic inner rod assembly, and the base assembly is extended or retracted, which satisfies needs of use in different scenarios. A rolling body assembly is arranged between the telescopic outer rod assembly and the telescopic inner rod assembly, which exerts an effect of assistance during extension or retraction, and prevents laborsome extension and retraction due to excessive friction.

Description

1 TELESCOPIC ELECTRIC SUITCASE TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of suitcases, and in particular to a telescopic electric suitcase. BACKGROUND

[0002] A suitcase, also known as a travel case or a wheeled suitcase, is a container used for carrying personal items during travel. Generally, the suitcase is used to store clothing, personal care supplies, and souvenirs needed during travel, which facilitates transport. Wheels are arranged at bottoms of most suitcases to facilitate movement. To enhance user convenience, electric suitcases provided with frames are available on the market. A user can move during travel by just sitting on an electric suitcase mounted on a frame, which is driven by a motor, making it easier to carry luggage.

[0003] Different users of varying heights have different comfort experiences when manipulating their electric suitcases. A distance between an electric suitcase and a handle of the electric suitcase of the prior art cannot be adjusted, which compromises comfort of some users. Moreover, there maybe exist space limitations when mounting a larger suitcase on a frame. SUMMARY

[0004] In order to overcome the defects in the prior art, the present disclosure provides a telescopic electric suitcase. In order to solve the above technical problems, the present disclosure adopts the following technical solution.

[0005] A telescopic electric suitcase, includes a suitcase body assembly, a handle assembly, a telescopic base assembly, and a front wheel assembly and a rear wheel assembly arranged at a bottom thereof, where a steering assembly is arranged between the handle assembly and the front wheel assembly, the base assembly includes a telescopic outer rod assembly and a telescopic inner rod assembly, the telescopic inner rod assembly is movably mounted inside the telescopic outer rod assembly, and a telescopic assistance mechanism is arranged between the telescopic outer rod assembly and the telescopic inner rod assembly.

[0006] Further, the telescopic assistance mechanism includes at least one rolling body assembly. HK 20137908 A 2

[0007] Further, the rolling body assembly includes a first rolling body at one end and a second rolling body at the other end, and the first rolling body and the second rolling body are located at upper and lower ends of the telescopic inner rod assembly.

[0008] Further, a first mounting groove is formed on an inner wall of the telescopic outer rod assembly, a second mounting groove is mounted on an outer wall of the telescopic inner rod assembly, and the first rolling body and the second rolling body are partially mounted inside the first mounting groove and the second mounting groove.

[0009] Further, the telescopic outer rod assembly includes the telescopic outer rod and an outer rod sleeve mounted inside the telescopic outer rod, the telescopic inner rod assembly includes the telescopic inner rod and an inner rod sleeve mounted on an outer surface of the telescopic inner rod, and the first mounting groove and the second mounting groove are formed on the outer rod sleeve and the inner rod sleeve.

[0010] Further, a bottom cover is arranged below the base assembly, a battery compartment, a battery connector, and a battery latch are arranged inside the bottom cover, a battery mounting hole that is communicated with the battery compartment is formed on a side of the bottom cover, and a battery assembly is inserted into the battery compartment through the battery mounting hole.

[0011] Further, a recess fitted with the battery latch is formed at one end of the battery assembly, and upon full insertion of the battery assembly into the battery compartment, the battery latch is snap-fitted into the recess.

[0012] Further, the rear wheel assembly includes a rear wheel bracket and rear wheels on both sides thereof, a bracket recess that is fitted with an outer contour of the bottom cover is formed on the rear wheel bracket, the bottom cover is mounted on the bracket recess, and the rear wheel bracket is connected to the base assembly.

[0013] Further, the front wheel assembly includes a hub motor, a fork, an adapter and bearings arranged at upper and lower ends of the adapter, where the fork penetrates through the adapter and the bearings and is connected to the handle assembly, and the telescopic inner rod assembly is connected to the adapter.

[0014] Further, the handle assembly includes a handle rod, a vertical rod, a connector, and an adjustable locator, where the vertical rod is connected to an upper end of the fork and reinforced through the connector, and the handle rod is telescopically mounted on the vertical rod and fixed through the locator. HK 20137908 A 3

[0015] Further, a housing that wraps around the handle assembly and the adapter, and footrests that are movably connected to both sides of the adapter are further included, and footrest storage slots are formed on both sides of the housing.

[0016] Compared with the prior art, the present disclosure has the beneficial effects as follows:

[0017] The base assembly of the present disclosure includes a telescopic outer rod assembly and a telescopic inner rod assembly, the telescopic inner rod assembly is movably mounted inside the telescopic outer rod assembly, and the user extends or retracts the base assembly according to use needs, which satisfies needs of use in different scenarios and allows users of varying heights to have a comfortable driving experience; and a telescopic assistance mechanism is arranged between the telescopic outer rod assembly and the telescopic inner rod assembly, which reduces friction between the telescopic outer rod assembly and the telescopic inner rod assembly during movement when the telescopic assistance mechanism extends or retracts, exerts an effect of assistance, prevents laborsome extension and retraction due to excessive friction, and enables the user to extend or retract easily, thereby enhancing user experience. BRIEF DESCRIPTION OFTHE DRAWINGS

[0018] FIG. 1 is a perspective view I of the present disclosure.

[0019] FIG. 2 is a perspective view II of the present disclosure.

[0020] FIG. 3 is a schematic diagram of the present disclosure in a retracted state.

[0021] FIG. 4 is a schematic diagram of the present disclosure in an unfolded state.

[0022] FIG. 5 is an exploded view I of the present disclosure.

[0023] FIG. 6 is an exploded view II of the present disclosure.

[0024] FIG. 7 is a perspective view of a suitcase body assembly of the present disclosure.

[0025] FIG. 8 is a diagram of FIG. 5 in an assembly state.

[0026] FIG. 9 is an exploded view of a front wheel assembly of the present disclosure.

[0027] FIG. 10 is an exploded view of a handle assembly of the present disclosure.

[0028] FIG. 11 is a perspective view III of the present disclosure.

[0029] Reference numerals in the figures: 1-suitcase body assembly; 2-handle assembly; 3-base assembly; 4-front wheel assembly; 5-rear wheel assembly; 6-telescopic outer rod assembly; 7-telescopic inner rod assembly; 8-rolling body assembly; 9-telescopic outer rod; 10-outer rod sleeve; 11-telescopic inner rod; 12-inner rod sleeve; 13-first mounting groove; 14-second mounting groove; 15-first rolling body; 16-second rolling body; 17-bottom cover; 18-battery compartment; 19-battery connector; 20-battery latch; 21-battery mounting hole; 22-battery assembly; 23-recess; 24-rear wheel bracket; 25-rear wheel; 26-bracket recess; 27-hub motor; HK 20137908 A 4 28-fork; 29-adapter; 30-handle rod; 31-vertical rod; 32-connector; 33-locator; 34-housing; 35-footrest; 36-footrest storage slot; 37-charging port; 38-steering assembly; and 39-bearing. DETAILED DESCRIPTIONS OFTHE EMBODIMENTS

[0030] The technical solutions in the examples of the present disclosure will be clearly and completely described below in combination with the accompanying drawings in the examples of the present disclosure. Apparently, the examples described are merely some rather than all of the examples of the present disclosure. All other examples acquired by those of ordinarily skilled in the art without making creative efforts based on the examples of the present disclosure fall within the scope of protection of the present disclosure.

[0031] As illustrated in FIGs. 1-11, a telescopic electric suitcase includes a suitcase body assembly 1, a handle assembly 2, a base assembly 3, and a front wheel assembly 4 and a rear wheel assembly 5 arranged at a bottom thereof for propulsion, where a steering assembly 38 is arranged between the handle assembly 2 and the front wheel assembly 4, and a user sitting on the suitcase body assembly 1 and holding the handle assembly 2 drives the electric suitcase to move forward. The base assembly 3 includes a telescopic outer rod assembly 6 and a telescopic inner rod assembly 7, the telescopic inner rod assembly 7 is movably mounted inside the telescopic outer rod assembly 6, and the user extends or retracts the base assembly 3 according to use needs, which satisfies needs of use in different scenarios and allows users of varying heights to have a comfortable driving experience. A telescopic assistance mechanism 8 is arranged between the telescopic outer rod assembly 6 and the telescopic inner rod assembly 7, and friction between the telescopic outer rod assembly 6 and the telescopic inner rod assembly 7 is reduced when the base assembly 3 extends or retracts through the telescopic assistance mechanism 8, which exerts an effect of assistance, prevents laborsome extension and retraction due to excessive friction, and enables the user to extend or retract easily, thereby enhancing user experience.

[0032] The telescopic assistance mechanism 8 includes at least one rolling body assembly, and one rolling body assembly is employed in the present disclosure, but the design is not limited thereto.

[0033] The rolling body assembly includes a first rolling body 15 at one end and a second rolling body 16 at the other end, and a gap is formed between the telescopic inner rod assembly 7 and the telescopic outer rod assembly 6 for movement of the rolling body assembly. The first rolling body 15 and the second rolling body 16 are located at upper and lower ends of the telescopic inner rod assembly 7 respectively, and the telescopic inner rod assembly 7, when extending or retracting, is better fitted with the first rolling body 15 and the second rolling body HK 20137908 A 5 16 for movement. Wheeled rolling provides telescopic assistance, with a relatively simple structure.

[0034] A first mounting groove 13 is formed on an inner wall of the telescopic outer rod assembly 6, a second mounting groove 14 is mounted on an outer wall of the telescopic inner rod assembly 7, and the first rolling body 15 and the second rolling body 16 are partially mounted inside the first mounting groove 13 and the second mounting groove 14 respectively. During extension or retraction, the first rolling body 15 rolls along an outer wall of a telescopic inner rod 11, and the second rolling body 16 rolls along an inner wall of the telescopic outer rod 9.

[0035] The telescopic outer rod assembly 6 includes the telescopic outer rod 9 and an outer rod sleeve 10 mounted inside the telescopic outer rod 9, and the telescopic inner rod assembly 7 includes the telescopic inner rod 11 and an inner rod sleeve 12 mounted on an outer surface of the telescopic inner rod 11. When the base assembly 3 is fully unfolded, the outer rod sleeve 10 and the inner rod sleeve 12 abut against each other, which prevents further extension thereof and exerts an effect of limiting, and prevents disengagement caused by excessive extension. The outer rod sleeve 10 and the inner rod sleeve 12 are fixed to the telescopic outer rod 9 and the telescopic inner rod 11 at one end thereof by means of screws, respectively.

[0036] A bottom cover 17 is arranged below the base assembly 3, and the telescopic outer rod assembly 6 is fixed above the bottom cover 17 by means of screws. A battery compartment 18, a battery connector 19, and a battery latch 20 are arranged inside the bottom cover 17, a battery mounting hole 21 that is communicated with the battery compartment 18 is formed on a side of the bottom cover 17, and a battery assembly 22 is horizontally inserted into the battery compartment 18 through the battery mounting hole 21.

[0037] A recess 23 fitted with the battery latch 20 is formed at one end of the battery assembly 22, the battery assembly 22 pushes open the battery latch 20 when penetrating through the battery mounting hole 21, and upon full insertion into the battery compartment 18, the battery latch 20 is snap-fitted into the recess 23 due to a resilience force of an internal spring, thereby fixing the battery assembly 22 in place. Moreover, the other end of the battery assembly 22 is in contact with the battery connector 19 for electrical conduction.

[0038] The rear wheel assembly 5 includes a rear wheel bracket 24 and rear wheels 25 on both sides thereof, the rear wheel bracket 24 is mounted below the bottom cover 17, and both sides of the rear wheel bracket 24 are connected to lower portions of the telescopic outer rod assembly 6 by means of screws. A bracket recess 26 that is fitted with an outer contour of the bottom cover 17 is formed on the rear wheel bracket 24, the bottom cover 17 is arranged on the bracket recess HK 20137908 A 6 26 to support and limit the bottom cover 17, and the telescopic outer rod assembly 6, the bottom cover 17, and the rear wheel assembly 5 are rigidly integrated and fixed.

[0039] The front wheel assembly 4 includes a hub motor 27 and a fork 28, a steering mechanism 38 includes an adapter 29 and bearings 39 for rotation arranged at upper and lower ends of the adapter 29, and the battery assembly 22 supplies power to drive the hub motor 27 to rotate for propulsion, where the hub motor 27 is mounted below the fork 28, an upper end of the fork 28 penetrates through the adapter 29 and the bearings 39 at both ends and is connected to the handle assembly 2, and the telescopic inner rod assembly 7 is sleeved into a rear portion of the adapter 29 and is fixed by means of screws. The user holding the handle assembly 2 drives the front wheel assembly 4 to rotate for steering, and design of the bearings at the upper and lower ends of the adapter 29 enables that the adapter 29 does not rotate during steering, such that the telescopic inner rod assembly 7 is not driven to rotate.

[0040] The handle assembly 2 includes a T-shaped handle rod 30, a vertical rod 31, a connector 32, and an adjustable locator 33, where the vertical rod 31 is threadedly connected to the upper end of the fork 28, sleeved at a joint between the vertical rod 31 and the fork 28, and tightened through rotation of a screw to enhance connection between the vertical rod 31 and the fork 28 and prevent disengagement or collapse. The handle rod 30 is telescopically inserted into the vertical rod 31, and the user adjusts a height of the handle rod 30 for optimal driving comfort according to experience. The locator 33 is configured to lock the handle rod 30, the locator 33 is manually toggled to lock or unlock, the handle rod 30 locked cannot be adjusted vertically, and the handle rod 30 unlocked can be adjusted in height, which facilitates intuitive and user-friendly operation.

[0041] A housing 34 that wraps around the handle assembly 2 and the adapter 29 is further included to protect an internal structure. Footrests 35 that are movably connected to both sides of the adapter 29 are further included, footrest storage slots 36 are formed on both sides of the housing 34, the footrests 35 are unfolded in a way of rotating, and when not in use, the footrests 35 are rotated to store in the footrest storage slots 36 to minimize space occupancy.

[0042] A charging port 36 is arranged on a side of the housing 34 to charge the battery assembly 22.

[0043] For those skilled in the art, it is apparent that the present disclosure is not limited to the details of the above-mentioned exemplary examples, and the present disclosure may be implemented in other specific forms without departing from the spirit or basic features of the present disclosure. Therefore, no matter from which point of view, all the embodiments are to be regarded as exemplary and non-limiting. The scope of the present disclosure is defined by the HK 20137908 A 7 appended claims rather than the above-mentioned description, and therefore it is intended that all changes which fall within the meaning and scope of equivalency of the claims are embraced in the present disclosure. Any reference symbols in the claims are not to be construed as limiting the claims to which they relate. HK 20137908 A 1 CLAIMS What is claimed is: 1. A telescopic electric suitcase, comprising a suitcase body assembly, a handle assembly, a telescopic base assembly, and a front wheel assembly and a rear wheel assembly arranged at a bottom thereof, wherein a steering assembly is arranged between the handle assembly and the front wheel assembly, the base assembly comprises a telescopic outer rod assembly and a telescopic inner rod assembly, the telescopic inner rod assembly is movably mounted inside the telescopic outer rod assembly, and a telescopic assistance mechanism is arranged between the telescopic outer rod assembly and the telescopic inner rod assembly. 2. The telescopic electric suitcase according to claim 1, wherein the telescopic assistance mechanism comprises at least one rolling body assembly. 3. The telescopic electric suitcase according to claim 2, wherein the rolling body assembly comprises a first rolling body at one end and a second rolling body at the other end, and the first rolling body and the second rolling body are located at upper and lower ends of the telescopic inner rod assembly. 4. The telescopic electric suitcase according to claim 3, wherein a first mounting groove is formed on an inner wall of the telescopic outer rod assembly, a second mounting groove is mounted on an outer wall of the telescopic inner rod assembly, and the first rolling body and the second rolling body are partially mounted inside the first mounting groove and the second mounting groove. 5. The telescopic electric suitcase according to claim 4, wherein the telescopic outer rod assembly comprises the telescopic outer rod and an outer rod sleeve mounted inside the telescopic outer rod, the telescopic inner rod assembly comprises the telescopic inner rod and an inner rod sleeve mounted on an outer surface of the telescopic inner rod, and the first mounting groove and the second mounting groove are formed on the outer rod sleeve and the inner rod sleeve. 6. The telescopic electric suitcase according to claim 1, wherein a bottom cover is arranged below the base assembly, a battery compartment, a battery connector, and a battery latch are arranged inside the bottom cover, a battery mounting hole that is communicated with the battery compartment is formed on a side of the bottom cover, and a battery assembly is inserted into the battery compartment through the battery mounting hole. 7. The telescopic electric suitcase according to claim 4, wherein a recess fitted with the battery latch is formed at one end of the battery assembly, and upon full insertion of the battery HK 20137908 A 2 assembly into the battery compartment, the battery latch is snap-fitted into the recess. 8. The telescopic electric suitcase according to claim 4, wherein the rear wheel assembly comprises a rear wheel bracket and rear wheels on both sides thereof, a bracket recess that is fitted with an outer contour of the bottom cover is formed on the rear wheel bracket, the bottom cover is mounted on the bracket recess, and the rear wheel bracket is connected to the base assembly. 9. The telescopic electric suitcase according to claim 1, wherein the front wheel assembly comprises a hub motor and a fork, and the steering assembly comprises an adapter and bearings arranged at upper and lower ends of the adapter, wherein the fork penetrates through the adapter and the bearings at both ends and is connected to the handle assembly, and the telescopic inner rod assembly is connected to the adapter. 10. The telescopic electric suitcase according to claim 7, wherein the handle assembly comprises a handle rod, a vertical rod, a connector, and an adjustable locator, wherein the vertical rod is connected to an upper end of the fork and reinforced through the connector, and the handle rod is telescopically mounted on the vertical rod and fixed through the locator. 11. The telescopic electric suitcase according to claim 8, wherein a housing that wraps around the handle assembly and the adapter, and footrests that are movably connected to both sides of the adapter are further comprised, and footrest storage slots are formed on both sides of the housing. HK 20137908 A 1 DRAWINGS FIG. 1 HK 20137908 A 2 FIG. 2 FIG. 3 HK 20137908 A 3 FIG. 4 FIG. 5 HK 20137908 A 4 FIG. 6 HK 20137908 A 5 FIG. 7 HK 20137908 A 6 FIG. 8 HK 20137908 A 7 FIG. 9 HK 20137908 A 8 FIG. 10 HK 20137908 A 9 FIG. 11 HK 20137908 A

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