Detachable power wheel module

Abstract

The utility model relates to the technical field of luggage cases, in particular to a detachable power wheel module which comprises a luggage case base installed at the bottom of a luggage case, a driving wheel module and an auxiliary wheel module are installed on the luggage case base, and the driving wheel module comprises a driving shaft and a driving wheel; vertical connecting seats are arranged at the two ends of the driving support, connecting grooves are formed in the bottom of the trunk base, and connecting columns capable of being inserted into the connecting grooves are formed in the connecting seats; when the driving wheel module is installed, the connecting bases located at the two ends of the driving shaft are matched with the connecting grooves of the trunk base through the connecting columns, the connecting columns are inserted into the connecting grooves in the bottom of the trunk base, and due to the fact that the connecting bases are vertically arranged, the connecting bases have the good supporting effect and have the good bearing effect on a trunk; the situation that the driving wheel module is bent can be reduced, and the situation that the driving wheel module is bent and damaged due to insufficient bearing capacity can be further reduced in cooperation with the auxiliary wheel module; according to the scheme, the driving wheel module can be detached and replaced conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to a luggage case technical field especially relates to a detachable power wheel module. BACKGROUND

[0002] The electric luggage case is improved on the basis of the traditional luggage case, so that it can be ridden to reduce the carrying burden of the luggage case.

[0003] The boarding case is a luggage case specially used by boarding passengers to carry and can be carried to the passenger cabin of the airplane. According to the boarding regulation of air transportation, the sum of the three edges (length, width and height) of the boarding case is usually not more than 115 cm. The boarding passengers usually use the 20-22 inch luggage case as the boarding case. The length, width and height of the luggage case used for boarding are 36-42 cm, 22-26 cm and 50-56 cm respectively. The three edge sizes are the outline sizes of the luggage case, that is, the maximum sizes of the three edges (including the size of the wheel). In practice, even if the sum of the three edges of the luggage case is slightly larger than 115 cm, it will not affect the boarding passengers to carry the luggage case to the passenger cabin of the airplane. If the sum of the three edge sizes of the luggage case carried by the boarding passenger is more than 125 cm, it needs to be shipped through the cargo cabin of the airplane.

[0004] When the production manufacturer applies the driving structure of the electric luggage case to the boarding luggage case and assembles it into the electric boarding case, the mounting structure of the power wheel needs to be considered, SUMMARY

[0005] The utility model aims at the deficiency of prior art and provides a detachable power wheel module.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] A detachable power wheel module, comprising a luggage case base mounted on the bottom of a luggage case, the luggage case base is provided with a driving wheel module and an auxiliary wheel module, the driving wheel module comprises a driving bracket and a driving wheel mounted on the driving bracket, the driving bracket comprises a driving shaft, and the driving wheel can rotate around the driving shaft; the driving bracket is provided with a standing connecting seat at both ends, the bottom of the luggage case base is formed with a connecting groove, the connecting seat is formed with a connecting column which can be inserted into the connecting groove, 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 coaxially aligned with the bottom connecting hole.

[0008] Further, the luggage case base is formed with a concave wheel mounting groove, and the wheel mounting groove cooperates with the driving wheel.

[0009] Further, the connecting groove is formed with a downwardly extending bottom guide cylinder, and the connecting column is coaxially aligned with the bottom guide cylinder.

[0010] Further, the connecting groove comprises a first top hole arranged in steps and a second top hole formed at the bottom of the first top hole, the inner diameter of the second top hole is larger than that of the first top hole; the connecting column comprises a first mounting column matched with the first top hole and a second mounting column matched with the second top hole, the outer diameter of the first mounting column is matched with the inner diameter of the first top hole; the outer diameter of the second mounting column is matched with the inner diameter of the second top hole.

[0011] Further, the bottom connecting hole is respectively communicated and integrally formed between the first mounting column and the second mounting column.

[0012] Further, the cross section of the connecting column is circular, and the cross section of the connecting seat is square.

[0013] Further, the inner side wall of the connecting seat is formed with a concave fixing square groove, the both ends of the driving shaft are formed with a fixing square block connected with the fixing square groove, the fixing square block is formed with a first transverse hole, and the connecting seat is formed with a second transverse hole coaxially aligned with the first transverse hole.

[0014] Further, the driving wheel is formed with a wheel hole matched with the driving shaft in rotation, and the wheel hole is provided with a bearing seat sleeved on the driving shaft.

[0015] Further, the auxiliary wheel module comprises a pair of first auxiliary support wheels and a pair of second auxiliary support wheels, the first auxiliary support wheels are respectively installed at the left side corner of the bottom of the luggage case base, and the second auxiliary support wheels are respectively installed at the right side corner of the bottom of the luggage case base.

[0016] The driving wheel module is installed, the connecting seat at both ends of the driving shaft is matched with the connecting groove of the luggage case base through the connecting column, the connecting column is inserted into the connecting groove at the bottom of the luggage case base, the top connecting hole of the connecting disc is coaxially aligned with the bottom connecting hole of the connecting column, and then a screw is inserted to realize locking connection; since the connecting seat is arranged upright, the connecting seat has a better supporting effect and has a better bearing effect on the luggage case; the bending of the driving wheel module can be reduced, and the auxiliary wheel module can further reduce the bending and damage of the driving wheel module due to insufficient bearing capacity; the above scheme can facilitate the disassembly and replacement of the driving wheel module. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the luggage case base.

[0018] Figure 2 It is a sectional structure schematic view of the luggage case base.

[0019] Figure 3 It is a sectional structure schematic view of the connecting column and the connecting groove.

[0020] Figure 4 It is a sectional structure schematic view of the driving wheel module.

[0021] Reference signs include:

[0022] 1 - luggage base,

[0023] 10 - wheel mounting groove, 11 - auxiliary wheel module, 12 - first auxiliary support wheel, 13 - second auxiliary support wheel, 14 - connecting groove, 15 - bottom guide cylinder, 16 - first top hole, 17 - second top hole,

[0024] 18 - connecting disc, 19 - top connecting hole,

[0025] 2 - drive wheel module,

[0026] 21 - connecting column, 22 - first mounting column, 23 - second mounting column, 24 - bottom connecting hole,

[0027] 25 - connecting seat, 26 - fixed square groove,

[0028] 3 - driving shaft,

[0029] 31 - first mounting cylinder, 32 - second mounting cylinder, 33 - hollow cavity, 34 - fixed square,

[0030] 35 - first transverse hole, 36 - second transverse hole,

[0031] 4 - driving wheel,

[0032] 41 - wheel hole, 42 - bearing seat, 43 - internal gear, 44 - drive motor, 45 - drive shaft,

[0033] 46 - rolling bearing, 47 - drive gear DETAILED DESCRIPTION

[0034] The utility model will be described in detail below in combination with the drawings.

[0035] As Figures 1-4 shown, a detachable power wheel module, including installing at the bottom of the luggage base 1, the luggage base 1 is installed with drive wheel module 2 and auxiliary wheel module 11, drive wheel module 2 includes drive support and installs the driving wheel 4 of drive support, drive support includes driving shaft 3, the driving wheel 4 can rotate around driving shaft 3;Drive support both ends are provided with the connecting seat 25 of rising, the bottom of the luggage base 1 is formed with connecting groove 14, connecting seat 25 is formed with the connecting column 21 that can be inserted into connecting groove 14, connecting column 21 is formed with bottom connecting hole 24, the top of connecting groove 14 is formed with connecting disc 18, connecting disc 18 is formed with the top connecting hole 19 of coaxial alignment with bottom connecting hole 24.

[0036] The driving wheel module 2 is installed, the connecting seat 25 at both ends of the driving shaft 3 is matched with the connecting groove 14 of the luggage base 1 through the connecting column 21, the connecting column 21 is inserted into the connecting groove 14 at the bottom of the luggage base 1, the top connecting hole 19 of the connecting disc 18 is coaxially aligned with the bottom connecting hole 24 of the connecting column 21, and then a screw is inserted to realize locking connection; since the connecting seat 25 is arranged vertically, the connecting seat 25 has a better supporting effect and has a better load bearing effect on the luggage; the bending of the driving wheel module 2 can be reduced, and the auxiliary wheel module 11 can further reduce the bending and damage of the driving wheel module 2 due to insufficient bearing capacity; the above scheme can facilitate the disassembly and replacement of the driving wheel module 2.

[0037] Further, the auxiliary wheel module 11 includes a pair of first auxiliary support wheels 12 and a pair of second auxiliary support wheels 13, the first auxiliary support wheels 12 are respectively installed at the left side corners at the bottom of the luggage base 1, and the second auxiliary support wheels 13 are respectively installed at the right side corners at the bottom of the luggage base 1, the two first auxiliary support wheels 12 cooperate with the two second auxiliary support wheels 13 to realize multi-region support of the luggage base 1, the stress distribution is more uniform, and the unevenness of the luggage base 1 during movement can be prevented, so that the stability of the support is ensured.

[0038] Further, the luggage base 1 is formed with an inner recessed wheel mounting groove 10, the wheel mounting groove 10 cooperates with the driving wheel 4, after the driving wheel module 2 is installed in place, a part of the driving wheel 4 will be located in the wheel mounting groove 10 under the action of the wheel mounting groove 10, that is, the gap between the luggage base 1 and the ground is reduced, the overall center of gravity is reduced, and when moving, the risk of the luggage collapsing can be reduced, and the stability of the movement is further improved.

[0039] Further, the connecting groove 14 is formed with a downwardly extending bottom guide cylinder 15, and the connecting column 21 is coaxially aligned with the bottom guide cylinder 15; the bottom guide cylinder 15 has a guiding effect on the connecting column 21, so that the connecting column 21 is always located in the connecting groove 14, when the luggage base 1 bears a heavy load, the bottom guide cylinder 15 has a side support effect, that is, the contact area between the connecting column 21 and the luggage base 1 is increased, so as to further disperse the gravity of the luggage base 1 supported by the connecting column 21, and reduce the probability of bending of the connecting column 21.

[0040] The connecting groove 14 comprises a first top hole 16 arranged in steps and a second top hole 17 formed at the bottom of the first top hole 16, the inner diameter of the second top hole 17 is larger than that of the first top hole 16; the connecting column 21 comprises a first mounting column 22 matched with the first top hole 16 and a second mounting column 23 matched with the second top hole 17, the outer diameter of the first mounting column 22 is matched with the inner diameter of the first top hole 16; the outer diameter of the second mounting column 23 is matched with the inner diameter of the second top hole 17; after the connecting column 21 of the driving wheel module 2 is inserted into the connecting groove 14, the first mounting column 22 is matched with the first top hole 16 and the second mounting column 23 is matched with the second top hole 17; at this time, the top end surface of the second mounting column 23 is in contact with the end surface of the connection between the first top hole 16 and the second top hole 17; further increase the bearing area; effectively disperse the gravity of the luggage case base 1.

[0041] The bottom connecting hole 24 is respectively communicated and integrally formed between the first mounting column 22 and the second mounting column 23 of the connecting column 21 of the driving wheel module 2 after being inserted into the connecting groove 14, the first mounting column 22 is matched with the first top hole 16 and the second mounting column 23 is matched with the second top hole 17; the screw is inserted between the top connecting hole 19 and the bottom connecting hole 24 to realize the locking connection, prevent the driving wheel module 2 from falling off from the connecting groove 14, and ensure the stability of the connection.

[0042] Preferably, the cross section of the connecting column 21 is circular, and the cross section of the connecting seat 25 is square.

[0043] The inner side wall of the connecting seat 25 is formed with a concave fixed square groove 26, the both ends of the driving shaft 3 are formed with a fixed square block 34 connected with the fixed square groove 26, the fixed square block 34 is formed with a first transverse hole 35, the connecting seat 25 is formed with a second transverse hole 36 coaxially aligned with the first transverse hole 35, after the both ends of the driving shaft 3 are embedded and connected with the fixed square groove 26 of the connecting seat 25 through the formed fixed square block 34, the first transverse hole 35 of the fixed square block 34 is coaxially aligned with the second transverse hole 36 of the connecting seat 25, and the screw is inserted between the first transverse hole 35 and the second transverse hole 36 to realize the fixed connection, effectively install the driving shaft 3, and prevent the driving wheel 4 sleeved on the driving shaft 3 from falling off.

[0044] Further, the driving wheel 4 is formed with a wheel hole 41 rotationally matched with the driving shaft 3, and the wheel hole 41 is provided with a bearing seat 42 sleeved on the driving shaft 3; since the driving wheel 4 has a certain width, the part of the wheel hole 41 in contact with the driving shaft 3 is in contact with the driving shaft 3 through the bearing seat 42, so as to realize the rotation of the driving wheel 4 around the driving shaft 3 to drive the movement of the luggage case base 1.

[0045] Further, the main shaft 3 comprises gap-arranged first mounting cylinder 31 and second mounting cylinder 32, the first mounting cylinder 31 and the second mounting cylinder 32 are respectively formed with hollow cavities 33, the first mounting cylinder 31 is installed with a driving motor 44; the driving end of the driving motor 44 is installed with a driving shaft 45, the outer end of the driving shaft 45 is installed with a rolling bearing 46, the rolling bearing 46 is installed on the second mounting cylinder 32; the driving motor 44 is led out with an electric wire, the electric wire can be connected with a built-in battery in the luggage through a joint, so as to realize power supply for the driving motor 44, when the driving motor 44 works, the driving shaft 45 rotates, since the outer end of the driving shaft 45 is connected with the second mounting cylinder 32 through the rolling bearing 46, therefore the first mounting cylinder 31 and the second mounting cylinder 32 will not rotate.

[0046] The driving shaft 45 is sleeved with a driving gear 47, the driving gear 47 is located in the gap between the first mounting cylinder 31 and the second mounting cylinder 32, the driving gear 47 is sleeved with a driving shaft 45, the driving shaft 45 is installed with an inner gear 43 in the main driving wheel 4, the inner gear 43 is engaged with the driving gear 47 for transmission; when the driving shaft 45 rotates, the driving gear 47 sleeved on the driving shaft 45 will be engaged with the inner gear 43 in the main driving wheel 4 for transmission, at the same time, the main driving wheel 4 rotates synchronously, so as to drive the main driving wheel 4 to rotate around the main shaft 3, so as to drive the luggage base 1 to be movable.

[0047] From the above, it can be seen that the utility model has the excellent characteristics as described above, and can improve the performance of the prior art and has practicality, and becomes a product with high practical value.

[0048] The above content is only the preferred embodiment of the utility model, for the ordinary skilled in the art, according to the idea of the utility model, the specific embodiment and the application range will have the change, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A detachable power wheel module comprising a luggage base mounted to the bottom of a luggage case, the luggage base having a drive wheel module and an auxiliary wheel module mounted thereto, characterized in that: The driving wheel module comprises a driving support and a driving wheel installed on the driving support, the driving support comprises a driving shaft, and the driving wheel is capable of rotating around the driving shaft; the driving support is provided with a standing connecting seat at both ends, the bottom of the luggage case base is formed with a connecting groove, the connecting seat is formed with a connecting column capable of being inserted into the connecting groove, 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 coaxially aligned with the bottom connecting hole.

2. A detachable power wheel module according to claim 1, characterized in that: The luggage case base is formed with an inner recessed wheel mounting groove matched with the driving wheel.

3. A detachable power wheel module according to claim 1, characterized in that: The connecting groove is formed with a downwardly extending bottom guide cylinder coaxially aligned with the connecting column.

4. A detachable power wheel module according to claim 3, characterized in that: The connecting groove comprises a first top hole arranged in steps and a second top hole formed at the bottom of the first top hole, and the inner diameter of the second top hole is larger than that of the first top hole; the connecting column comprises a first mounting column matched with the first top hole and a second mounting column matched with the second top hole, and the outer diameter of the first mounting column is matched with the inner diameter of the first top hole; the outer diameter of the second mounting column is matched with the inner diameter of the second top hole.

5. A detachable power wheel module according to claim 4, characterized in that: The bottom connecting holes are respectively communicated and integrally formed between the first mounting column and the second mounting column.

6. A detachable power wheel module according to claim 5, characterized in that: The cross section of the connecting column is circular, and the cross section of the connecting seat is square.

7. A detachable power wheel module according to claim 1, wherein: The inner side wall of the connecting seat is formed with an inner recessed fixing square groove, the both ends of the driving shaft are formed with fixing square blocks connected with the fixing square groove, the fixing square blocks are formed with first transverse holes, and the connecting seat is formed with second transverse holes coaxially aligned with the first transverse holes.

8. A detachable power wheel module according to claim 7, characterized in that: The driving wheel is formed with a wheel hole matched with the rotation of the driving shaft, and the wheel hole is installed with a bearing seat sleeved on the driving shaft.

9. A detachable power wheel module according to any one of claims 1 to 8, characterized in that: The auxiliary wheel module comprises a pair of first auxiliary support wheels and a pair of second auxiliary support wheels, the first auxiliary support wheels are respectively installed at the left side corners of the bottom of the luggage case base, and the second auxiliary support wheels are respectively installed at the right side corners of the bottom of the luggage case base.

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