Electric luggage case with handle bar arranged in case body

Abstract

The utility model discloses an electric luggage case with a handle bar arranged in a case body, belongs to the luggage case technology, and aims to solve the problems that the front upper corner and the front lower corner of the case body are easy to deform and damage due to normal force when the handle bar of the existing electric luggage case is arranged in the case body and rotating seats are arranged at the front upper corner or / and the front lower corner. The rotating drum is assembled on the inner side of the front wall of the box frame, and the handle rod is assembled on the rotating drum instead of being rotationally assembled with the front upper corner and the front lower corner of the box frame, so that the self weight of the box body, the weight of luggage in the box body and even the weight of a person riding on the box body are dispersed by the front wall, and the stress direction of the front wall is basically consistent with the vertical extension direction of the front wall; the stress direction of the front wall is the tangential direction of the front wall instead of being perpendicular to the normal direction of the front wall. The stress state of the box frame is improved, and the box frame is prevented from being damaged due to local stress concentration.

Description

Technical Field

[0001] The utility model belongs to the technology of luggage, and particularly relates to an electric luggage with a handlebar built into the box body. 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 turning of the luggage is realized by rotating the handlebar. And the box body can be used for sitting astride.

[0003] When the handlebar of the existing electric luggage is built into the box body, a rotating seat is arranged at the upper front corner and / or the lower front corner of the box body for rotational assembly with the handlebar. The upper front corner and the lower front corner are prone to deformation and damage due to the normal force, and the structure is complex. Summary of the Utility Model

[0004] The technical problem to be solved and the technical task proposed by the utility model is to overcome the defect that the upper front corner and the lower front corner of the box body of the existing electric luggage with the handlebar built into the box body are prone to deformation and damage due to the normal force when the rotating seat is arranged at the upper front corner and / or the lower front corner, and to provide an electric luggage with a handlebar built into the box body with a simple and firm structure.

[0005] To achieve the above object, the electric luggage with a handlebar built into the box body of the utility model comprises:

[0006] A box frame, which comprises a front wall, a rear wall, an upper wall and a lower wall;

[0007] A side cover, which is arranged on the side of the box frame and forms a box body together with the front wall, the rear wall, the upper wall and the lower wall;

[0008] A rotating cylinder, which is assembled on the inner side of the front wall;

[0009] A handlebar, which passes through the box frame and both the upper and lower ends extend out of the box frame. The handlebar is rotationally assembled with the rotating cylinder. A handle is arranged at the upper end of the handlebar, and a steering wheel driven by the handlebar to turn is arranged at the lower end of the handlebar.

[0010] The electric luggage assembles a rotating cylinder on the inner side of the front wall, and assembles the handlebar 300 on the rotating cylinder 150 instead of rotationally assembling with the upper front corner and the lower front corner of the box frame. Accordingly, the self-weight of the box body, the weight of the luggage in the box body or even the weight of a person when sitting astride is dispersed by the front wall, and the direction of the force on the front wall is basically consistent with the up-and-down 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 normal direction perpendicular to the front wall. The stress state of the box frame is improved, and local stress concentration of the box frame is avoided and damaged.

[0011] Preferably, a through hole for passing through the handlebar is arranged at the lower left corner of the box frame. The through hole is only for the handlebar to pass through and is not rotationally assembled with the handlebar, so as to avoid stress concentration and deformation and damage here.

[0012] Preferably, the handlebar is inserted through the through-hole of the rotating cylinder and is rotationally assembled to the rotating cylinder by a first bearing sleeved on the handlebar at the lower end of the rotating cylinder and a second bearing sleeved on the handlebar at the upper end of the rotating cylinder. This simplifies the assembly of the handlebar and improves the stress state of the handlebar.

[0013] Preferably, a shoulder is configured at the lower part of the handlebar, and a nut is configured at the upper part of the handlebar. 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 handlebar, the handlebar is axially positioned to prevent axial movement of the handlebar.

[0014] Preferably, the box frame is an integrally die-cast structure or an integrally injection-molded structure. Accordingly, the structural integrity and strength of the box frame are ensured.

[0015] Preferably, the box frame is formed by bending a sheet and fixing it by butting at the lower wall. Accordingly, existing standard sheets can be selected and cut according to the specifications of the box frame, reducing the raw material cost.

[0016] Preferably, the upper end of the rotating cylinder extends outside the front upper corner of the box frame. Accordingly, the upper end of the rotating cylinder can be supported and fixed by the front upper corner of the box frame, increasing the assembly strength between the rotating cylinder and the box frame. The force direction of this supporting effect is perpendicular to the axis of the rotating sleeve, with a large force-bearing capacity and not easily deformed.

[0017] Preferably, a concave member is configured at the front upper corner of the box frame, and the upper end of the rotating cylinder extends to the upper side of the concave member. Accordingly, the manufacturing of the box frame can be simplified, and the difficulty of injection molding, die casting or bending due to the concave member can be avoided.

[0018] Preferably, a gap is maintained between the lower end of the rotating cylinder and the lower left corner of the box frame. It is used to accommodate and hide the installation components of the handlebar, keeping the outside of the box body regular.

[0019] Preferably, the height of the rotating cylinder corresponds to the height distribution of the front wall. Accordingly, the rotating cylinder is kept long enough to reduce the sway of the handlebar.

[0020] In the present utility model, by assembling the rotating cylinder inside the front wall of the box frame and assembling the handlebar to the rotating cylinder instead of rotationally assembling it with the front upper corner and front lower corner of the box frame, accordingly, the weight of the box body itself, the weight of the luggage inside the box body or even the weight of a person when sitting astride is dispersed by the front wall, and the force direction of the front wall is basically consistent with the up-and-down extension direction of the front wall, that is, the force direction of the front wall is the tangential direction of the front wall rather than the normal direction perpendicular to the front wall. The stress state of the box frame is improved, and local stress concentration of the box frame and damage are avoided.

[0021] The utility model rotatably assembles a handlebar on a rotating cylinder by passing the handlebar through a through hole of the rotating cylinder and using a first bearing sleeved on the handlebar at the lower end of the rotating cylinder and a second bearing sleeved on the handlebar at the upper end of the rotating cylinder, which simplifies the assembly of the handlebar and improves the stress state of the handlebar. While ensuring the flexible rotation of the handlebar, the axial positioning of the handlebar is realized to avoid the axial movement of the handlebar.

[0022] The upper end of the rotating cylinder of the utility model extends to the front upper corner of the box frame. The front upper corner of the box frame is used to support and fix the upper end of the rotating cylinder, increasing the assembly strength between the rotating cylinder and the box frame. The stress direction of this supporting effect is perpendicular to the axis of the rotating sleeve, with a large stress capacity and not easy to deform. Description of the Drawings

[0023] Figure 1 is an axonometric view of an electric suitcase of the utility model;

[0024] Figure 2 is Figure 1 an axonometric view of the electric suitcase shown from another perspective;

[0025] Figure 3 is a schematic diagram of the structural decomposition of the electric suitcase of the utility model;

[0026] Figure 4 is Figure 3 a schematic diagram of the structure shown from another perspective;

[0027] Figure 5 is a schematic diagram of a sectional structure of the box frame of the utility model;

[0028] Figure 6 is a schematic diagram of a sectional structure of the electric suitcase of the utility model;

[0029] Figure 7 is another schematic diagram of a sectional structure of the box frame of the utility model;

[0030] Figure 8 is another schematic diagram of a sectional structure of the electric suitcase of the utility model;

[0031] Figure 9 is a schematic diagram of a steering wheel of the utility model with only one wheel;

[0032] Explanation of the Reference Numerals in the Drawings:

[0033] 100 Box Frame: 110 Front Wall, 120 Rear Wall, 130 Upper Wall, 140 Lower Wall, 150 Rotating Cylinder, 151 Pipe Section, 160 Concave Member, 170 Connecting Plate, 101 Through Hole, 102 Gap, 103 Through Hole;

[0034] 200 Side Cover;

[0035] 300 Bar, 310 Outer rod, 311 Shoulder, 312 Nut, 320 Inner rod, 330 Locking structure, 340 Handle;

[0036] 410 Steering wheel, 420 Rear wheel;

[0037] 510 First bearing, 520 Second bearing. Detailed implementation manners

[0038] To make the objectives, 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 with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0039] The terms "comprise" and "have" 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 that includes a series of technical features does not necessarily limit to those clearly listed technical features, but may also include other technical features that can be included in the method or product but are not clearly listed.

[0040] 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 accompanying drawings, and 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, and thus cannot 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.

[0041] In the description of the present utility model, it should be understood that the technical features defined by the terms "first", "second", etc. with a sequential concept 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 representing such naming in actual implementation, and thus cannot be construed as a limitation to the present utility model.

[0042] The present utility model will be introduced in detail below with reference to specific embodiments and the accompanying drawings.

[0043] As Figures 1-4 、 Figure 6 、 Figure 8 shown, the electric trunk includes a trunk frame 100, a side cover 200, a rotating cylinder 150 and a bar 300.

[0044] The box frame 100 is as Figure 5 , Figure 7 shown, and it includes a front wall 110, a rear wall 120, an upper wall 130, and a lower wall 140. In the illustrated structure, the box frame 100 is formed by bending a sheet and butt-jointed at the lower wall, and the butt-jointed part of the lower wall is fixedly connected by a connecting plate 170 joined by riveting or welding. In other embodiments, the box frame can also be an integrally die-cast structure or an integrally injection-molded structure. The front wall, rear wall, upper wall, and lower wall of the integral structure can be made of different thicknesses according to their stress levels, and even local strengthening structures such as reinforcing ribs can be made, reducing the weight of the box frame while ensuring the structural strength.

[0045] An inwardly concave member 160 is arranged at the upper left corner of the front of the box frame 100 by welding or riveting or other means. The inwardly concave member 160 is used to accommodate a locking structure and the like, so as to accommodate the handle of the grab bar into the box as much as possible. A through hole 101 for passing through the grab bar is provided at the lower left corner of the box frame.

[0046] The side covers 200 are respectively assembled to the two side faces of the box frame 100 by rivets and form a box body with the front wall, rear wall, upper wall, and lower wall. And at least one side cover can be opened to place luggage into the box or take luggage out of the box.

[0047] The rotating cylinder 150 is fixedly assembled to the inner side of the front wall 110 by riveting or welding or other means. A gap 102 is reserved between the lower end of the rotating cylinder and the lower left corner of the box frame to accommodate the first bearing 510. The upper end of the rotating cylinder 150 is a pipe section 151 and extends through the through hole of the inwardly concave member 160 to the upper side of the inwardly concave member and is located outside the upper left corner of the box frame. Thus, the height of the rotating cylinder corresponds to the height distribution of the front wall, that is, the height of the rotating cylinder is equivalent to the height of the front wall. Accordingly, sufficient length is given to the rotating cylinder. When positioning the first bearing and the second bearing at the upper and lower ends of the rotating cylinder to support the grab bar, the swaying of the grab bar can be reduced.

[0048] Among them, the pipe section 151 at the upper end of the rotating cylinder 150 extending to the upper side of the inwardly concave member 160 also facilitates the installation of the second bearing 520 and positioning the second bearing at the upper end of the rotating cylinder, making the position of the second bearing stable. And the inwardly concave member 160 at the upper left corner of the box frame 100 can be used to support and fix the upper end of the rotating cylinder, increasing the assembly strength between the rotating cylinder and the box frame. The force direction of this supporting effect is perpendicular to the axial direction of the rotating sleeve, with a large force-bearing capacity and not easily deformed. In such an assembly method, the self-weight of the box body, the weight of the luggage in the box body, or even the weight of a person when sitting astride is dispersed by the front wall and the inwardly concave member, and the force direction of the front wall is basically consistent with the up-and-down extension direction of the front wall, that is, the force direction of the front wall is the tangential direction of the front wall, rather than the normal direction perpendicular to the front wall. The stress state of the box frame is improved, and local stress concentration of the box frame and damage are avoided.

[0049] The handle rod 300 is inserted through the box frame 100. Moreover, the upper end of the handle rod 300 extends out of the front upper corner of the box frame 100, and the lower end of the handle rod 300 extends out of the front lower corner of the box frame 100. The handle rod 300 is rotationally assembled to 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, two steering wheels shown in the figure are coaxially installed. In other embodiments, the steering wheel 410 can be only one as shown in Figure 9 . 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. Buttons for controlling the drive wheels are arranged on the handle rod.

[0050] 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 or pulling the luggage case. To achieve 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 is telescopic 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 telescoping 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.

[0051] In the illustrated structure, the handle rod 300 is inserted through the through hole 103 of the rotating cylinder and is rotationally assembled to 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.

[0052] For the box body with this structure, since the rotating cylinder is located inside the front wall, the volume of the box body can be increased and the external contour of the box body can be kept regular while ensuring the overall contour of the luggage case.

[0053] During assembly, place the first bearing 510 at the upper side of the through hole 101 and at the lower end of the rotating cylinder. Insert the upper end of the outer rod 310 upward through the through hole 101, the first bearing 510, and the through hole 103 of the rotating cylinder, and then extend it from the concave member 160. Next, put the second bearing 520 and the nut 312 on the upper end of the outer rod 310. By tightening the nut, axially compress and position the first bearing 510 between the shoulder 311 and the lower end of the rotating cylinder, and axially compress and position the second bearing 520 between the nut 312 and the upper end of the rotating cylinder, so as to prevent the outer rod of the handlebar from moving up and down relative to the rotating sleeve. Finally, install the locking structure 330 at the upper end of the outer rod 310, insert the inner rod 320 into the outer rod 310 through the locking structure, and lock or unlock it as needed by the locking mechanism to adjust the length of the entire handlebar.

[0054] For the foregoing structure, the handlebar 300 is assembled to the rotating cylinder 150 instead of being rotatably assembled to the box frame. Accordingly, the self-weight of the box, the weight of the luggage inside the box, or even the weight of a person when sitting astride will be dispersed by the front wall 110 and the concave member. Moreover, the direction of the force on the front wall is basically consistent with the up-and-down 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. The torque generated on the rotating sleeve is also shared by the concave member. Therefore, both the bonding strength between the rotating sleeve and the front wall is ensured, and the stress state of the box frame is improved, avoiding local stress concentration and damage to the box frame.

Claims

1. An electric luggage case with a handlebar built into the box body, characterized in that Comprising: A box frame (100), which includes a front wall (110), a rear wall (120), an upper wall (130), and a lower wall (140); A side cover (200), which is disposed on the side of the box frame (100) and forms a box body together with the front wall, the rear wall, the upper wall, and the lower wall; A rotating cylinder (150), which is assembled inside the front wall (110); A handle rod (300), which passes through the box frame (100) and both the upper and lower ends extend out of the box frame (100). The handle rod (300) is rotatably assembled on the rotating cylinder (150). A handle (340) is disposed at the upper end of the handle rod (300), and a steering wheel (410) that is steered by the handle rod is disposed at the lower end of the handle rod (300).

2. The electric suitcase according to claim 1, characterized in that: A through hole (101) for passing the handle rod is provided at the lower left corner of the box frame (100).

3. The electric trunk according to claim 1, characterized in that: The handle rod (300) passes through a 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.

4. The electric suitcase according to claim 3, characterized in that: A shoulder (311) is disposed at the lower part of the handle rod (300), and a nut (312) is disposed at the upper part of the handle rod. 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.

5. The electric suitcase according to claim 1, characterized in that: The box frame (100) is of an integral die-casting structure or an integral injection-molding structure.

6. The electric suitcase according to claim 1, wherein: The box frame (100) is formed by bending a plate and butt-jointing and fixing it at the lower wall.

7. The electric suitcase according to any one of claims 1-6, characterized in that: The upper end of the rotating cylinder (150) extends outside the upper front corner of the box frame (100).

8. The electric suitcase according to claim 7, characterized in that: An inwardly concave member (160) is disposed at the upper front corner of the box frame (100), and the upper end of the rotating cylinder (150) extends above the inwardly concave member (160).

9. The electric suitcase according to any one of claims 1-7, characterized in that: A gap (102) is maintained between the lower end of the rotating cylinder (150) and the lower left corner of the box frame.

10. The electric suitcase according to any one of claims 1-7, characterized in that: The height of the rotating cylinder corresponds to the height distribution of the front wall.

Images