A luggage case having forward propulsion

Abstract

The utility model relates to a luggage case technical field especially, it relates to a luggage case with forward power, including the box, the box bottom is provided with the support base, the support base is provided with power module and the steering module, the steering module includes the steering groove, the steering groove is provided with the steering arm of horizontal arrangement, the both ends of steering arm are respectively installed with the steering wheel of can rotate, the steering arm middle end is installed with the steering axle of standing, the steering axle can rotatably be installed in the bottom of support base, when the steering axle rotates in the bottom of support base, the steering arm will correspondingly horizontally rotate, the steering wheel of installing in the both ends of steering arm correspondingly is offset, to realize the effect of steering, in addition, the steering mounting seat is shaped with the steering drive hole for installing the steering axle, the steering drive hole is provided with the rolling support piece, when the steering axle rotates in the steering drive hole, the rolling support piece can roll and support, provides the bearing capacity, can reduce the friction of luggage case dead weight, guarantees the rotation stability and the smooth of steering axle.

Description

Technical Field

[0001] This utility model relates to the field of luggage technology, and in particular to a luggage with forward propulsion. Background Technology

[0002] Electric suitcases are an improvement on traditional suitcases, making them rideable to reduce the burden of carrying luggage.

[0003] Suitcases are generally heavy and can be difficult to drag. Ride-on suitcases, however, are equipped with electric power, transforming into a mobility device for riding, reducing the burden of carrying a suitcase and greatly simplifying travel. The ride-on suitcase features a handle assembly on the front, connected to the suitcase via a telescopic beam. An electrically retractable assembly is located inside the suitcase. The handle assembly and telescopic beam are connected to the suitcase via this slidable assembly. When riding, the user sits on the suitcase, and the electric retractable assembly extends the telescopic beam and handle assembly outwards. When not riding, the handle assembly retracts close to the suitcase, reducing the overall space occupied by the suitcase and improving the convenience of carrying it.

[0004] Existing suitcases, due to their heavy weight, experience excessive friction when turning, resulting in unresponsive, uneven, and unstable turning. Utility Model Content

[0005] The purpose of this invention is to provide a suitcase with forward propulsion to address the shortcomings of existing technologies.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A suitcase with forward propulsion includes a suitcase body, a support base at the bottom of the suitcase body, a power module and a steering module on the support base, a pair of spaced-apart power mounting slots formed at the bottom of the support base, and the power modules respectively mounted in the power mounting slots. Each power module includes a power wheel rotatably mounted in the power mounting slot, and a power bracket for mounting the power wheel. Each end of the power bracket has an upright connecting post formed at one end, and the edge of the power mounting slot has a concave connecting groove formed therein, with the connecting posts detachably mounted in the connecting groove.

[0008] The steering module includes a steering groove with a laterally arranged steering arm. Rotatable steering wheels are installed at both ends of the steering arm, and an upright steering shaft is installed at the middle of the steering arm. The steering shaft is rotatably installed at the bottom of the support base. The steering mounting base is formed with a steering drive hole for installing the steering shaft, and a rolling support is provided in the steering drive hole.

[0009] Furthermore: the power bracket is also connected to the two ends of the connecting seat, the connecting column is formed on the top of the connecting seat, the connecting column is formed with a bottom connecting hole, the top of the connecting groove is formed with a connecting disc, and the connecting disc is formed with a top connecting hole that is coaxially aligned with the bottom connecting hole.

[0010] Furthermore: the connecting groove is formed with a downwardly extending bottom guide cylinder, and the connecting column is coaxially aligned with the bottom guide cylinder.

[0011] Furthermore: the connecting groove includes a first top hole arranged in a stepped manner and a second top hole formed at the bottom of the first top hole, the inner diameter of the second top hole being larger than the inner diameter of the first top hole; the connecting post includes a first mounting post that mates with the first top hole and a second mounting post that mates with the second top hole, the outer diameter of the first mounting post being adapted to the inner diameter of the first top hole; the outer diameter of the second mounting post being adapted to the inner diameter of the second top hole.

[0012] Furthermore: a raised steering mounting seat is formed in the middle of the steering groove, and a drive cylinder is connected to the top of the steering shaft, with the drive cylinder located inside the support base.

[0013] Furthermore: the top of the steering shaft is formed with a connector with a non-circular cross-section, and the bottom of the drive cylinder is formed with a plug hole that matches the cross-sectional shape of the connector.

[0014] Furthermore: the inner ring wall of the drive cylinder is formed with radially concave snap-fit ​​protrusions, and the snap-fit ​​protrusions are formed with multiple mounting holes along the length direction.

[0015] Furthermore: a concave top bearing groove is formed at the top of the steering drive hole, and a concave bottom bearing groove is formed at the bottom of the steering drive hole. The rolling support includes a top flat rolling bearing installed in the top bearing groove, the top surface of the top flat rolling bearing contacting the top surface of the drive cylinder. A bottom flat rolling bearing is installed in the bottom bearing groove, and the steering shaft passes between the top flat rolling bearing and the bottom flat rolling bearing.

[0016] Furthermore: a raised connecting protrusion is formed at the middle end of the steering arm, and the connecting protrusion is formed with a concave connecting hole for mounting the steering shaft, and the top of the connecting protrusion contacts the bottom flat rolling bearing.

[0017] The beneficial effects of this utility model are as follows: The power bracket with the power wheel cooperates with the connecting groove of the support base through the connecting column. The connecting column is inserted into the connecting groove at the bottom of the luggage base to achieve disassembly and connection. Since the connecting column is arranged longitudinally, it has a better load-bearing effect on the luggage. In addition, it can reduce the bending of the power module. In conjunction with the steering module, it can further reduce the occurrence of bending and damage to the power module due to insufficient load-bearing capacity. The above solution can facilitate the disassembly and replacement of the power module.

[0018] When the steering shaft rotates at the bottom of the support base, the steering arm will rotate horizontally accordingly, and the steering wheels installed at both ends of the steering arm will be offset accordingly to achieve the steering effect. When steering, since the overall width and length of the steering groove are greater than the volume of the steering wheel, more space is reserved for the steering wheel to swing horizontally to control the steering of the luggage compartment.

[0019] In addition, the steering mounting base is formed with a steering drive hole for mounting the steering shaft. The steering drive hole is provided with a rolling support. When the steering shaft rotates in the steering drive hole, the rolling support can provide rolling support and load-bearing capacity. This can reduce the friction caused by the weight of the luggage compartment and ensure the rotational stability and smoothness of the steering shaft. Attached Figure Description

[0020] Figure 1 This is a structural diagram of a suitcase.

[0021] Figure 2 This is a cross-sectional structural diagram of the power module.

[0022] Figure 3 This is a cross-sectional view of the steering module.

[0023] The reference numerals in the figures include:

[0024] 1-Support base,

[0025] 10-Power module, 11-Power mounting slot, 12-Power wheel, 13-Power bracket, 14-Connecting seat

[0026] 15-Connecting groove, 16-Bottom guide cylinder, 17-First top hole, 18-Second top hole

[0027] 19-Connecting disk,

[0028] 2-Connecting column,

[0029] 21-First mounting post, 22-Second mounting post, 23-Bottom connecting hole, 24-Top connecting hole

[0030] 3-Steering module

[0031] 31-Steering arm, 32-Steering wheel, 33-Steering groove, 34-Steering mounting bracket, 35-Steering drive hole,

[0032] 36-Connecting protrusion, 37-Concave connecting hole, 38-Steering shaft,

[0033] 4-Drive cylinder,

[0034] 41-Insertion hole, 42-Snap-fit ​​protrusion, 43-Mounting hole, 44-Top bearing groove, 45-Bottom bearing groove

[0035] 46 - Top flat rolling bearing, 47 - Bottom flat rolling bearing. Detailed Implementation

[0036] The present invention will now be described in detail with reference to the accompanying drawings.

[0037] like Figure 1-3 As shown, a suitcase with forward propulsion has a support base 1 equipped with a power module 10 and a steering module 3. The bottom of the support base 1 is formed with a pair of spaced-apart power mounting slots 11, on which the power modules 10 are respectively mounted. The power modules 10 include power wheels 12 that are rotatably mounted in the power mounting slots 11. The power modules 10 also include power brackets 13 for mounting the power wheels 12. The power brackets 13 have upright connecting posts 2 formed at both ends. The edges of the power mounting slots 11 are formed with concave connecting slots 15, and the connecting posts 2 are detachably mounted in the connecting slots 15.

[0038] The power bracket 13 with the power wheel 12 is connected to the connecting groove 15 of the support base 1 via the connecting column 2. The connecting column 2 is inserted into the connecting groove 15 at the bottom of the luggage base to achieve detachment and connection. Since the connecting column 2 is arranged longitudinally, it has a better load-bearing effect on the luggage. In addition, it can reduce the bending of the power module 10. In conjunction with the steering module 3, it can further reduce the occurrence of bending damage to the power module 10 due to insufficient load-bearing capacity. The above solution can facilitate the disassembly and replacement of the power module 10.

[0039] Specifically, the power bracket 13 is connected to connecting seats 14 at both ends. Connecting posts 2 are formed on the top of the connecting seats 14, and each connecting post 2 has a bottom connecting hole 23. A connecting disc 19 is formed on the top of the connecting groove 15, and the connecting disc 19 has a top connecting hole 24 coaxially aligned with the bottom connecting hole 23. The connecting post 2 is inserted into the connecting groove 15 at the bottom of the support base 1, so that the top connecting hole 24 of the connecting disc 19 is coaxially aligned with the bottom connecting hole 23 of the connecting post 2. Then, screws are inserted to achieve a locking connection. Because the connecting post 2 is arranged vertically, it provides better support and better load-bearing capacity for the luggage.

[0040] Furthermore, the connecting groove 15 is formed with a downwardly extending bottom guide cylinder 16, and the connecting post 2 is coaxially aligned with the bottom guide cylinder 16; the bottom guide cylinder 16 has a guiding effect on the connecting post 2, so that the connecting post 2 is always located in the connecting groove 15. When the luggage base is under heavy load, the bottom guide cylinder 16 has a side support effect, that is, the contact area between the connecting post 2 and the support base 1 increases, thereby further dispersing the weight of the luggage and reducing the probability of the connecting post 2 bending.

[0041] The connecting groove 15 includes a stepped first top hole 17 and a second top hole 18 formed at the bottom of the first top hole 17. The inner diameter of the second top hole 18 is larger than the inner diameter of the first top hole 17. The connecting post 2 includes a first mounting post 21 that mates with the first top hole 17 and a second mounting post 22 that mates with the second top hole 18. The outer diameter of the first mounting post 21 is adapted to the inner diameter of the first top hole 17. The outer diameter of the second mounting post 22 is adapted to the inner diameter of the second top hole 18. After the connecting post 2 of the power module 10 is inserted into the connecting groove 15, the first mounting post 21 mates with the first top hole 17, and the second mounting post 22 mates with the second top hole 18. At this time, the top end face of the second mounting post 22 will contact the end face at the connection between the first top hole 17 and the second top hole 18, further increasing the load-bearing area and effectively dispersing the weight of the luggage.

[0042] The bottom connecting hole 23 is connected to the first mounting post 21 and the second mounting post 22 respectively. After the connecting post 2 of the power module 10 is inserted into the connecting groove 15, the first mounting post 21 cooperates with the first top hole 17, and the second mounting post 22 cooperates with the second top hole 18. The screw is inserted between the top connecting hole 24 and the bottom connecting hole 23 to achieve a locking connection, prevent the power module 10 from falling out of the connecting groove 15, and ensure the stability of the connection.

[0043] Preferably, the cross-section of the connecting column 2 is circular, and the cross-section of the connecting seat 14 is square.

[0044] Since the two power mounting slots 11 are respectively equipped with power modules 10, the power modules 10 of the two power mounting slots 11 can rotate simultaneously and provide rolling support to the support base 1, which has a large rolling support force and load-bearing capacity. When rotating, the luggage box is more stable when moving forward.

[0045] It should be noted that the power bracket 13 of the power module 10 leads wires to the support base 1. The support base 1 contains a power supply battery and a circuit board, forming a circuit module that supplies power to the power wheel 12. The power bracket 13 of the power wheel 12 contains a motor. The aforementioned power wheel 12 is a common powered structure in suitcases. After being powered on, the power wheel 12 can rotate. The specific structure and functional principle of the power wheel 12 will not be elaborated here. It can realize the active movement of the suitcase, reduce the effort required to drag the suitcase, and achieve the effect of saving time and effort.

[0046] Specifically, the steering module 3 includes a steering groove 33, on which a laterally arranged steering arm 31 is provided. Rotatable steering wheels 32 are mounted at both ends of the steering arm 31, and an upright steering shaft 38 is mounted at the middle of the steering arm 31. The steering shaft 38 is rotatably mounted on the bottom of the support base 1. When the steering shaft 38 rotates at the bottom of the support base 1, the steering arm 31 rotates horizontally accordingly, and the steering wheels 32 mounted at both ends of the steering arm 31 are offset accordingly to achieve the steering effect. During steering, since the overall width and length of the steering groove 33 are greater than the volume of the steering wheels 32, sufficient space is reserved for the horizontal swaying of the steering wheels 32 to control the steering of the luggage compartment.

[0047] In addition, the steering mounting base 34 is formed with a steering drive hole 35 for mounting the steering shaft 38. The steering drive hole 35 is provided with a rolling support. When the steering shaft 38 rotates in the steering drive hole 35, the rolling support can provide rolling support and load-bearing capacity, which can reduce the friction caused by the weight of the luggage compartment and ensure the rotational stability and smoothness of the steering shaft 38.

[0048] A raised steering mounting seat 34 is formed in the middle of the steering groove 33. The steering mounting seat 34 is integrally formed and connected to the support base 1. The steering mounting seat 34 has a steering drive hole 35 for mounting the steering shaft 38. A drive cylinder 4 is connected to the top of the steering shaft 38. A connector with a non-circular cross-section is formed at the top of the steering shaft 38, and an insertion hole 41 with a cross-sectional shape matching the connector is formed at the bottom of the drive cylinder 4. When the drive cylinder 4 rotates, because the cross-section of the top of the steering shaft 38 is non-circular, the steering shaft 38 will rotate synchronously when the drive cylinder 4 rotates, so that the steering shaft 38 rotates within the steering drive hole 35. This drives the steering arm 31 to swing horizontally around the steering drive hole 35, and the steering wheels 32 installed at both ends of the steering arm 31 can swing in the steering groove 33 to achieve steering. In addition, the drive cylinder 4 is installed in the support base 1, and the luggage compartment's pull rod structure can be connected to the drive cylinder 4. When the pull rod structure is rotated, it drives the rotation of the drive cylinder 4.

[0049] Furthermore, the inner annular wall of the drive cylinder 4 is formed with radially concave snap-fit ​​protrusions 42, and the snap-fit ​​protrusions 42 are formed with multiple mounting holes 43 along the length direction. The snap-fit ​​protrusions 42 facilitate the insertion of the bottom of the pull rod structure that drives the drive cylinder 4 to rotate. After insertion, the connection can be achieved through the mounting holes 43, ensuring that the steering connection area of ​​the pull rod structure is always connected to the drive cylinder 4 so as to drive the drive cylinder 4 to rotate and achieve steering.

[0050] The steering drive hole 35 has a recessed top bearing groove 44 at the top and a recessed bottom bearing groove 45 at the bottom. A top flat rolling bearing 46 is installed in the top bearing groove 44, with its top surface contacting the top surface of the drive cylinder 4. A bottom flat rolling bearing 47 is installed in the bottom bearing groove 45. The steering shaft 38 passes between the top flat rolling bearing 46 and the bottom flat rolling bearing 47. When the drive cylinder 4 rotates, it rolls against the top flat rolling bearing 46, causing the steering shaft 38 to rotate within the steering drive hole 35. The rolling support provided by the top flat rolling bearing 46 reduces friction between the steering shaft 38 and the steering drive hole 35, increasing load-bearing capacity while ensuring stable steering.

[0051] Furthermore, a protruding connecting protrusion 36 is formed at the middle of the steering arm 31. The connecting protrusion 36 has a recessed connecting hole 37 for mounting the steering shaft 38. The top of the connecting protrusion 36 contacts the bottom planar rolling bearing 47. In this embodiment, the bottom of the steering shaft 38 is connected to the connecting protrusion 36. When the steering shaft 38 rotates, it can drive the steering arm 31 to swing synchronously, thereby offsetting the steering wheel 32. The top of the connecting protrusion 36 abuts against the bottom planar rolling bearing 47. When the steering arm 31 swings horizontally, the top of the connecting protrusion 36 can roll with the bottom surface of the bottom planar rolling bearing 47, which can reduce the friction caused by the weight of the luggage compartment, reduce the friction of steering, improve smoothness, and thus improve steering stability.

[0052] Specifically, the bottom of the steering shaft 38 is fixedly mounted on the connecting protrusion 36, and the steering shaft 38 is inserted into the steering drive hole 35. Therefore, the steering arm 31 and the steering protrusion support the weight of the luggage. Since the bottom of the steering drive hole 35 of the steering mounting seat 34 is equipped with a bottom flat rolling bearing 47, which is installed in the bottom bearing groove 45, the bottom flat rolling bearing is stably mounted on the steering mounting seat 34. With this design, the weight of the luggage is transferred to the bottom flat rolling bearing, which contacts the connecting protrusion 36. The bottom surface of the bottom flat rolling bearing has a rotation function, so the steering arm 31 with the connecting protrusion 36 can rotate flexibly, which greatly reduces the friction caused by the weight of the luggage, thereby ensuring that the steering arm 31 swings flexibly to achieve steering.

[0053] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.

[0054] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A suitcase with forward propulsion, comprising a suitcase body, wherein a support base is provided at the bottom of the suitcase body, characterized in that: The support base is provided with a power module and a steering module. The bottom of the support base is formed with a pair of spaced-apart power mounting slots. The power modules are respectively installed in the power mounting slots. The power modules include power wheels that are rotatably mounted in the power mounting slots. The power modules also include power brackets for mounting the power wheels. The two ends of the power brackets are respectively formed with upright connecting columns. The edges of the power mounting slots are formed with concave connecting slots. The connecting columns are detachably installed in the connecting slots. The steering module includes a steering groove, a steering arm arranged laterally in the steering groove, a rotatable steering wheel installed at both ends of the steering arm, an upright steering shaft installed at the middle end of the steering arm, and the steering shaft rotatably installed at the bottom of the support base. The steering mount is formed with a steering drive hole for mounting the steering shaft, and the steering drive hole is provided with a rolling support.

2. A suitcase with forward propulsion according to claim 1, characterized in that: The power bracket is also connected to connecting seats at both ends. A connecting column is formed on the top of the connecting seat, and the connecting column is formed with a bottom connecting hole. A connecting disc is formed on the top of the connecting groove, and the connecting disc is formed with a top connecting hole that is coaxially aligned with the bottom connecting hole.

3. A suitcase with forward propulsion according to claim 2, characterized in that: The connecting groove is formed with a downwardly extending bottom guide cylinder, and the connecting column is coaxially aligned with the bottom guide cylinder.

4. A suitcase with forward propulsion according to claim 3, characterized in that: The connecting groove includes a first top hole arranged in a stepped manner and a second top hole formed at the bottom of the first top hole, the inner diameter of the second top hole being larger than the inner diameter of the first top hole; the connecting post includes a first mounting post that mates with the first top hole and a second mounting post that mates with the second top hole, the outer diameter of the first mounting post being adapted to the inner diameter of the first top hole; the outer diameter of the second mounting post being adapted to the inner diameter of the second top hole.

5. A suitcase with forward propulsion according to claim 1, characterized in that: A raised steering mounting seat is formed in the middle of the steering groove, and a drive cylinder is connected to the top of the steering shaft. The drive cylinder is located inside the support base.

6. A suitcase with forward propulsion according to claim 5, characterized in that: The top of the steering shaft is formed with a connector with a non-circular cross-section, and the bottom of the drive cylinder is formed with a plug hole that matches the cross-sectional shape of the connector.

7. A suitcase with forward propulsion according to claim 6, characterized in that: The inner ring wall of the drive cylinder is formed with radially concave snap-fit ​​protrusions, and the snap-fit ​​protrusions are formed with multiple mounting holes along the length direction.

8. A suitcase with forward propulsion according to claim 5, characterized in that: The steering drive hole has a concave top bearing groove at the top and a concave bottom bearing groove at the bottom. The rolling support includes a top flat rolling bearing installed in the top bearing groove, the top surface of the top flat rolling bearing is in contact with the top surface of the drive cylinder, and a bottom flat rolling bearing is installed in the bottom bearing groove. The steering shaft passes between the top flat rolling bearing and the bottom flat rolling bearing.

9. A suitcase with forward propulsion according to claim 8, characterized in that: The steering arm has a raised connecting protrusion at its middle end, and the connecting protrusion has a recessed connecting hole for mounting the steering shaft. The top of the connecting protrusion contacts the bottom flat rolling bearing.

Images