Integrated box frame and electric luggage box
Through the integrated box rack design and bearing fixation and rod assembly method, the problem of insolid assembly of the electric luggage drum and box rack is solved, and the structural strength and lightweight effect is achieved.
Patent Information
- Application Number
- CN202422608184.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-28
AI Technical Summary
The drum and box rack of the existing electric trunk are not assembled firmly enough, resulting in concentrated stress in the riveted part, making the box rack easy to deform and increase weight.
An integrated box frame is designed, with the front wall, rear wall, upper wall and lower wall integrally formed with the drum. The drum height is 50%-80% of the front wall height, dispersing the stress, avoiding local stress concentration, and fixing the handle rod through bearings and nuts to simplify assembly.
The bonding strength between the drum and the front wall is improved, the box frame is avoided partial damage, the box weight is reduced, and the box integrity and volume are maintained.
Smart Images
Figure CN223169301U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technology of luggage, and particularly relates to an integrated frame and an electric luggage Background Art
[0002] An electric luggage is equipped with an electric drive function on the basis of a trolley case. During the electric drive process, the steering of the luggage is realized by rotating a handlebar. And the box body can be used for sitting on
[0003] When the handlebar of the existing electric luggage is assembled to the frame of the box body, a rotating cylinder is assembled to a part of the frame by riveting or other methods, and then the handlebar is rotatably assembled to the rotating cylinder. This easily causes stress concentration at the riveting part, resulting in the assembly part of the frame being insecure and deformed
[0004] In order to ensure the assembly strength, the part of the frame where the rotating cylinder is assembled needs to have sufficient thickness. Since the frame is mostly bent from plates with the same thickness, the thickness of each part of the frame is the same, resulting in an increase in the weight of the box body Summary of the Utility Model
[0005] The technical problem to be solved and the technical task proposed by the utility model are to overcome the defect that the rotating cylinder of the existing electric luggage is not firmly assembled to the frame, and to provide an integrated frame and an electric luggage with a firm structure, and on this basis, reduce the weight of the box body
[0006] To achieve the above object, the integrated frame of the utility model has an integrated front wall, rear wall, upper wall and lower wall, and furthermore, a rotating cylinder for assembling a handlebar is integrally formed on the front wall. Accordingly, the bonding strength between the rotating sleeve and the front wall is ensured
[0007] In one embodiment, the rotating cylinder is located outside the front wall. Accordingly, the accommodation space inside the box body is kept in a regular shape
[0008] In one embodiment, the rotating cylinder is located inside the front wall, and a through hole for passing through the handlebar is provided on the frame. Accordingly, the box body has a larger volume
[0009] Preferably, the upper end of the rotating cylinder extends to the outer wall of the frame, fixing the rotating cylinder in multiple directions and increasing the stability of the rotating cylinder. A gap is kept between the lower end of the rotating cylinder and the lower left corner of the frame for accommodating the installation member of the handlebar
[0010] Preferably, the front wall, rear wall, upper wall, lower wall and rotating cylinder are integrally die-cast. Or, the front wall, rear wall, upper wall, lower wall and rotating cylinder are integrally injection-molded. Accordingly, an integrated frame structure is obtained in one step
[0011] Preferably, the height of the rotating cylinder is 50%-80% of the height of the front wall. Accordingly, the stress on the front wall is dispersed, avoiding local stress concentration on the front wall and damage
[0012] To achieve the above object, the electric suitcase of the present utility model includes:
[0013] The integral suitcase frame of the present utility model;
[0014] Side covers, which are arranged on the sides of the integral suitcase frame and form a box body together with the front wall, rear wall, upper wall and lower wall;
[0015] A handle bar, which is rotatably assembled on a rotating cylinder. A handle is arranged at the upper end of the handle bar, and a steering wheel that is steered by the handle bar is arranged at the lower end of the handle bar.
[0016] Preferably, the handle bar passes through a through hole of the rotating cylinder and is rotatably assembled on the rotating cylinder via a first bearing sleeved on the handle bar at the lower end of the rotating cylinder and a second bearing sleeved on the handle bar at the upper end of the rotating cylinder. This simplifies the assembly of the handle bar.
[0017] Preferably, a shoulder is arranged at the lower part of the handle bar, and a nut is arranged at the upper part of the handle bar. The first bearing is axially positioned between the shoulder and the lower end of the rotating cylinder, and the second bearing is axially positioned between the nut and the upper end of the rotating cylinder. While ensuring the flexible rotation of the handle bar, the handle bar is axially positioned to prevent axial movement of the handle bar.
[0018] In the present utility model, the rotating cylinder and the front wall are made into one body by die casting or injection molding, etc., and the front wall, rear wall, upper wall and lower wall of the suitcase frame are also made into one body. This ensures the bonding strength between the rotating sleeve and the front wall.
[0019] The front wall, rear wall, upper wall and lower wall of the present utility model can be made into different thicknesses according to the magnitude of the force they bear, and even a reinforcing structure can be made locally, which reduces the weight of the suitcase frame while ensuring the structural strength. Description of the Drawings
[0020] Figure 1 An axonometric view of the electric suitcase according to Embodiment 1 of the present utility model;
[0021] Figure 2 is Figure 1 A structural exploded view of the shown electric suitcase;
[0022] Figure 3 is Figure 2 A sectional structural view of the suitcase frame shown in;
[0023] Figure 4 is Figure 1 A sectional structural view of the shown electric suitcase;
[0024] Figure 5 An axonometric view of the electric suitcase according to Embodiment 2 of the present utility model;
[0025] Figure 6 isFigure 5 Exploded schematic view of the structure of the electric suitcase shown
[0026] Figure 7 is Figure 6 Schematic cross-sectional structure of a box frame shown in
[0027] Figure 8 is Figure 5 Schematic cross-sectional structure of an electric suitcase shown in
[0028] Figure 9 is Figure 6 Another schematic cross-sectional structure of the box frame shown in
[0029] Figure 10 is Figure 5 Another schematic cross-sectional structure of the electric suitcase shown in
[0030] Figure 11 Schematic diagram of the steering wheel of the present utility model being a single wheel
[0031] Explanation of reference numerals in the figure:
[0032] 100 Integral box frame: 110 Front wall, 120 Rear wall, 130 Upper wall, 140 Lower wall, 150 Rotating cylinder, 160 Concave part, 101 Through hole, 102 Gap, 103 Through hole, H1 Height of the rotating cylinder, H2 Height of the front wall
[0033] 200 Side cover
[0034] 300 Handle rod, 310 Outer rod, 311 Axle shoulder, 312 Nut, 320 Inner rod, 330 Locking structure, 340 Handle
[0035] 410 Steering wheel, 420 Rear wheel
[0036] 510 First bearing, 520 Second bearing Detailed implementation manners
[0037] To make the purpose, technical solutions and advantages of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model
[0038] The terms "comprising" and "having" and any variations thereof in the description and claims of the present utility model are intended to cover non-exclusive inclusion. For example, a method or product comprising a series of technical features does not necessarily have to be limited to those technical features clearly listed, but may also include other technical features that can be included in the method or product but are not clearly listed.
[0039] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. Among them, the directions of "upper" and "lower", "left" and "right", "front" and "rear" are opposite.
[0040] In the description of the present utility model, it should be understood that the technical features defined by terms with a sequential concept such as "first", "second", etc. are only for clearly describing the defined technical features, so that the defined technical features can be clearly distinguished from other technical features, rather than being named in actual implementation. Therefore, it should not be construed as a limitation to the present utility model.
[0041] The present utility model will be introduced in detail below in conjunction with specific embodiments and the accompanying drawings.
[0042] Embodiment 1
[0043] As Figure 1-2 、 Figure 4 shown, the electric suitcase includes an integrated case frame 100, two side covers 200, and a handlebar 300.
[0044] The integrated case frame 100 is as Figure 3 shown. It has an integrated front wall 110, rear wall 120, upper wall 130, and lower wall 140 that enclose a frame shape. A rotating cylinder 150 for assembling the handlebar is integrally formed on the front wall 110. The rotating cylinder 150 is located outside the front wall 110. The front wall, rear wall, upper wall, lower wall, and rotating cylinder are integrally die-cast or integrally injection-molded to ensure the bonding strength between the rotating sleeve and the front wall. Moreover, the front wall, rear wall, upper wall, and lower wall can be made with different thicknesses according to the magnitude of the force they bear, and even local strengthening structures such as reinforcing ribs can be made. While ensuring the structural strength, the weight of the case frame is reduced. Further, the height H1 of the rotating cylinder is 50%-80% of the height H2 of the front wall. Accordingly, the force on the front wall is dispersed, avoiding local stress concentration and damage to the front wall.
[0045] Two side covers 200 are respectively assembled on both sides of the integral box frame 100 by rivets and form a box body together with the front wall, rear wall, upper wall and lower wall. And at least one side cover can be opened so as to place luggage into the box body or take out luggage from the box body.
[0046] The handle rod 300 is rotatably assembled on the rotating cylinder 150. A handle 340 is arranged at the upper end of the handle rod 300, and a steering wheel 410 that is steered by the handle rod is arranged at the lower end of the handle rod 300. In the direction shown in the figure, the steering wheel is the front wheel. And the illustrated steering wheels are two coaxially installed ones. In other embodiments, the steering wheel can be only one as Figure 11 shown. In addition, two rear wheels 420 are arranged at the rear side of the bottom of the box body. The steering wheel or the rear wheels are configured as drive wheels for driving the luggage case. A key for controlling the drive wheels is arranged on the handle rod.
[0047] The illustrated handle rod 300 is telescopic. Therefore, the handle rod can be shortened when storing the luggage case, and the handle rod can be extended when pushing and pulling the luggage case. In order to realize the telescoping of the handle rod, the handle rod 300 includes an outer rod 310 and an inner rod 320. The inner rod is inserted into the outer rod and telescopically moves relative to the outer rod. A locking structure 330 is arranged at the upper end of the outer rod. The inner rod is locked to the outer rod through the locking structure to prohibit the inner rod from telescopically moving relative to the outer rod, and thus the length of the handle rod can be fixed. Unlocking the locking structure can release the inner rod, and the length of the handle rod can be adjusted by the telescoping of the inner rod relative to the outer rod.
[0048] In Figure 1-4 since the rotating cylinder is located outside the front wall, when installing the handle rod, it is not necessary to pass the handle rod through the box body. Accordingly, the integrity of the box body can be ensured. For example, the front upper corner and front lower corner of the box body can both maintain continuity without setting structures such as mounting seats for assembling the handle rod.
[0049] In Figure 1-4 the structure shown, the handle rod 300 passes through the through hole 103 of the rotating cylinder and is rotatably assembled on the rotating cylinder through a first bearing 510 sleeved on the handle rod at the lower end of the rotating cylinder and a second bearing 520 sleeved on the handle rod at the upper end of the rotating cylinder. Specifically, a shoulder 311 is arranged at the lower part of the handle rod, and a nut 312 is arranged at the upper part of the handle rod. As shown in the figure, the shoulder 311 and the nut 312 are arranged on the outer wall of the outer rod 310. The first bearing 510 is axially positioned between the shoulder 311 and the lower end of the rotating cylinder, and the second bearing 520 is axially positioned between the nut 312 and the upper end of the rotating cylinder.
[0050] During assembly, the first bearing 510 is first placed on the outer rod 310 of the handlebar. The upper end of the outer rod 310 is then passed from bottom to top through the through hole 103 of the rotating drum. The second bearing 520 and nut 312 are then placed on the upper end of the outer rod 310. By tightening the nut, the first and second bearings are secured in place, preventing the outer rod of the handlebar from moving up and down relative to the rotating sleeve. Finally, the locking structure 330 is installed on the upper end of the outer rod 310. The inner rod 320 is inserted into the outer rod 310 through the locking structure. The locking mechanism can be locked or unlocked as needed to adjust the length of the entire handlebar.
[0051] Example 2
[0052] like Figure 5-6 、 Figure 8 、 Figure 10 As shown, the difference between the electric luggage case and the embodiment 1 is only the integrated luggage frame. In this embodiment, the integrated luggage frame 100 is as shown in FIG. Figure 7 、 Figure 9 As shown, a rotating drum 150 is located inside the front wall 110. A recess 160 is provided in the upper front corner of the box frame 100 to accommodate a locking mechanism, etc., to minimize the retraction of the handlebar towards the box body. A through hole 101 is provided in the lower left corner of the box frame for the handlebar. The upper end of the rotating drum extends to the outer wall of the box frame recess 160, increasing the structural strength of the rotating drum and the front wall. A gap 102 is maintained between the lower end of the rotating drum and the lower left corner of the box frame to accommodate the first bearing.
[0053] In the case of this structure, since the rotating drum is located on the inner side of the front wall, the volume of the case can be increased while maintaining the outer contour of the entire suitcase.
[0054] The remaining structures of the electric luggage case of this embodiment are the same as those of the first embodiment and are not described in detail herein.
[0055] During assembly, the first bearing 510 is positioned above the through-hole 101 and at the lower end of the rotating drum. The upper end of the outer rod 310 is passed from bottom to top through the through-hole 101, the first bearing 510, and the through-hole 103 of the rotating drum, extending from the inner recess 160. The second bearing 520 and the nut 312 are then placed over the upper end of the outer rod 310. The nuts are tightened to secure the first and second bearings in place, preventing the outer rod of the handlebar from moving up and down relative to the rotating sleeve. Finally, the locking structure 330 is installed at the upper end of the outer rod 310, and the inner rod 320 is inserted into the outer rod 310 through the locking structure. The locking mechanism can be locked or unlocked as needed to adjust the length of the entire handlebar.
[0056] In the foregoing embodiment, the rotary drum 150 is integrally formed with the front wall 110, and further, the height H1 of the rotary drum is limited to 50%-80% of the height H2 of the front wall. The handle rod 300 is assembled to the rotary drum 150 instead of being rotatably assembled with the box frame. Accordingly, when the weight of the box body itself, the weight of the luggage in the box body, or even the weight of a person sitting astride is applied, the front wall 110 will disperse the force, and the direction of the force on the front wall is basically consistent with the vertical extension direction of the front wall, that is, the direction of the force on the front wall is the tangential direction of the front wall, rather than the direction perpendicular to the front wall, that is, not the normal direction of the front wall. Therefore, integrating the rotary drum with the front wall not only ensures the bonding strength between the rotating sleeve and the front wall, but also improves the stress state of the box frame, avoiding local stress concentration and damage to the box frame. Limiting the height of the rotary drum to 50%-80% of the height of the front wall can also reduce the shaking of the handle rod.
[0057] In contrast, when the handle rod is rotatably assembled with the upper front corner and the lower front corner of the box frame, the upper front corner and the lower front corner will bear the normal force and are prone to deformation and damage. If other components are used to reinforce the upper front corner and the lower front corner, the weight of the box body will be increased and the capacity of the box body will be reduced.
Claims
1. An integrated box rack, having an integrated front wall (110), rear wall (120), upper wall (130) and lower wall (140), characterized in that: The front wall (110) integrally has a rotating cylinder (150) for assembling a grab bar.
2. The integrated box rack according to claim 1, characterized in that: The rotating cylinder (150) is located outside the front wall (110).
3. The integrated box rack according to claim 1, characterized in that: The rotating cylinder (150) is located inside the front wall (110), and a through hole (101) for passing through the grab bar is provided on the box frame.
4. The integrated box rack according to claim 3, characterized in that: The upper end of the rotating cylinder (150) extends to the outer wall of the box frame; a gap (102) is maintained between the lower end of the rotating cylinder (150) and the lower left corner of the box frame.
5. The integrated box rack according to any one of claims 1 to 4, characterized in that: The front wall, rear wall, upper wall, lower wall and rotating cylinder are integrally die-cast.
6. The integrated box rack according to any one of claims 1-4, characterized in that: The front wall, rear wall, upper wall, lower wall and rotating cylinder are integrally injection-molded.
7. The integrated box rack according to any one of claims 1-4, characterized in that: The height (H1) of the rotating cylinder is 50%-80% of the height (H2) of the front wall.
8. Electric luggage, characterized in that Comprising: The integral box frame (100) according to any one of claims 1-7; A side cover (200), which is arranged on the side of the integral box frame (100) and forms a box body with the front wall, rear wall, upper wall and lower wall; A grab bar (300), which is rotatably assembled on the rotating cylinder (150), a handle (340) is arranged at the upper end of the grab bar (300), and a steering wheel (410) that is steered by the grab bar is arranged at the lower end of the grab bar (300).
9. The electric suitcase according to claim 8, characterized in that: The grab bar (300) passes through the through hole (103) of the rotating cylinder and is rotatably assembled on the rotating cylinder through a first bearing (510) sleeved on the grab bar at the lower end of the rotating cylinder and a second bearing (520) sleeved on the grab bar at the upper end of the rotating cylinder.
10. The electric suitcase according to claim 9, characterized in that: A shoulder (311) is arranged at the lower part of the grab bar (300), a nut (312) is arranged at the upper part of the grab bar, the first bearing (510) is axially positioned between the shoulder (311) and the lower end of the rotating cylinder, and the second bearing (520) is axially positioned between the nut (312) and the upper end of the rotating cylinder.