Electric luggage case

Abstract

The utility model discloses an electric luggage case, belongs to the luggage case technology, and aims to solve the problems that a telescopic rod of the conventional electric luggage case is driven by an electric push rod to telescopically move relative to a track, is complex in structure and high in manufacturing cost and is not easy to move in case of power shortage. The straight telescopic rod which can be manually pushed and pulled to move to the extending position or the retracting position in the length direction of the track is assembled on the track, the front wheel or the rear wheel is assembled on the telescopic rod, and the telescopic rod is manually pushed and pulled to move to the extending position or the retracting position in the length direction of the track. The distance between the front wheel and the rear wheel is increased or reduced, an electric push rod is omitted, the structure is simple, the manufacturing cost is reduced, the power consumption is reduced, the endurance time of the electric luggage case is prolonged, and the telescopic rod is not influenced when power is insufficient.

Description

Technical Field

[0001] The utility model belongs to the luggage box technology, and in particular relates to an electric luggage box. Background Art

[0002] Existing electric luggage cases rely on electric power to drive the luggage cases to move. In order to increase the stability of the electric luggage cases when they are moving and to occupy a smaller space when they are stored, a track is usually fixed on the case body, a telescopic rod is installed on the track, and the front wheels or rear wheels are installed on the telescopic rod. The telescopic rod is driven by an electric push rod to move relative to the track to increase or decrease the distance between the front wheels and the rear wheels. The structure is complex, the manufacturing cost is high, the power consumption is increased, and it is difficult to move the telescopic rod when there is no power.

[0003] Moreover, the telescopic rod of the existing electric luggage case is in contact with the track, and the telescopic rod is not smooth when telescoping and moving relative to the track, and friction noise is also generated. Utility Model Content

[0004] The technical problem to be solved and the technical task proposed by the utility model are to overcome the defects of the existing electric suitcase in which the telescopic rod is driven by an electric push rod to telescopically move relative to a track, such as complex structure, high manufacturing cost, and difficulty in moving the telescopic rod when power is out of service, and to provide an electric suitcase in which the telescopic rod can be moved manually, so as to simplify the structure, reduce the manufacturing cost, reduce the power consumption, and enable the telescopic rod to be moved when power is out of service.

[0005] To achieve the above-mentioned purpose, the electric luggage case of the utility model comprises a case body, front wheels and rear wheels, and is characterized in that a straight track is fixed to the case body, a straight telescopic rod is mounted on the track for manual pushing and pulling to shift to an extended position or a retracted position along the length direction of the track, and the front wheels or the rear wheels are mounted on the telescopic rod.

[0006] The electric suitcase increases or decreases the distance between the front wheels and the rear wheels by manually pushing and pulling the telescopic rod to shift to the extended position or the retracted position along the length direction of the track, omitting the electric push rod, having a simple structure, reducing the manufacturing cost, reducing power consumption, extending the battery life of the electric suitcase, and not affecting the movement of the telescopic rod when the power is lacking.

[0007] Preferably, in order to ensure the stability of the telescopic rod and the track and to reduce the weight of the electric luggage box as much as possible, the track and the telescopic rod are both tubular, and the telescopic rod is inserted into the track. Moreover, the tubular telescopic rod and track are easy to manufacture, and aluminum alloy profiles are preferred.

[0008] Preferably, in order to prevent the telescopic rod from accidentally moving, the telescopic rod is fixed in the extended position or the retracted position by a latch.

[0009] Preferably, the latch is fixed to the box body and exposed outside the box body for easy operation.

[0010] Preferably, the telescopic rod is limited by the blocking portion to keep the telescopic rod assembled with the track, thereby preventing the telescopic rod from falling off the track.

[0011] Preferably, the telescopic rod is provided with a limiting groove extending along its length direction, and the blocking portion is fixed to the box or the track and extends into the limiting groove. Accordingly, the telescopic rod can be limited without increasing the diameter of the telescopic rod or reducing the strength of the telescopic rod.

[0012] Preferably, in order to avoid the contact between the telescopic rod and the track, which may cause the telescopic rod to move unsmoothly relative to the track and generate friction noise, a shift promoter is placed between the outer wall of the telescopic rod and the inner wall of the track. The shift promoter maintains a gap between the outer wall of the telescopic rod and the inner wall of the track to promote flexible extension and retraction of the telescopic rod relative to the track.

[0013] Preferably, the displacement facilitating member is a roller, and the outer wall of the telescopic rod or / and the inner wall of the track are provided with a guide groove extending in the length direction, and the roller is located in the guide groove. Accordingly, the guide groove can constrain and guide the roller to maintain the cooperation between the roller, the telescopic rod and the track.

[0014] Preferably, a through hole is provided on the tube wall of the track, a structural member is assembled at the through hole, a guide groove is arranged on the structural member, and both ends of the guide groove are blocked by end covers. Accordingly, the structural member can provide better support for the roller and facilitate assembly.

[0015] Preferably, the cross-sectional profile of the guide groove on the structural member is in the shape of an arc and the central angle of the arc is greater than 180°, thereby the roller can be constrained in the guide groove without being separated from the guide groove, which is conducive to assembling the roller.

[0016] The utility model assembles a straight telescopic rod on a track for manual pushing and pulling so as to be shifted to an extended position or a retracted position along the length direction of the track, and assembles a front wheel or a rear wheel on the telescopic rod. The telescopic rod is manually pushed and pulled to be shifted to the extended position or the retracted position along the length direction of the track, so as to increase or decrease the distance between the front wheel and the rear wheel, omit an electric push rod, and has a simple structure, and the manufacturing cost is reduced, the power consumption is reduced, the battery life of the electric suitcase is prolonged, and the movement of the telescopic rod is not affected when there is a power shortage.

[0017] The utility model fixes the telescopic rod at the extended position or the retracted position by a latch pin, thereby preventing the telescopic rod from accidentally moving.

[0018] The utility model provides a displacement promoting member between the outer wall of the telescopic rod and the inner wall of the track. The displacement promoting member maintains a gap between the outer wall of the telescopic rod and the inner wall of the track to promote the flexible extension and retraction of the telescopic rod relative to the track, thereby avoiding the contact between the telescopic rod and the track, which may cause the telescopic rod to be not smooth when extending and retracting relative to the track, and possible friction noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the electric luggage box of the utility model;

[0020] Figure 2 For the general Figure 1 Schematic diagram of the middle box after the side wall is removed;

[0021] Figure 3 For the general Figure 1 Schematic diagram after the middle box is removed;

[0022] Figure 4 for Figure 3 An exploded schematic diagram of the structure shown;

[0023] Figure 5 for Figure 3 A schematic side orthographic projection of the structure shown;

[0024] Figure 6 for Figure 5 The AA section enlarged view in FIG.

[0025] Figure 7 for Figure 5 The enlarged cross-sectional view in the BB direction;

[0026] Figure 8 for Figure 5 The enlarged CC section view in FIG.

[0027] Fig. 9 for Figure 8 Schematic diagram of the telescopic rod;

[0028] Fig.10 for Figure 8 Schematic diagram of the middle track;

[0029] Fig.11 is a schematic diagram of the cross-sectional profile of the guide groove on the structural member;

[0030] Fig.12 It is a schematic diagram of the assembly relationship of the track, structural parts and pipe sleeve;

[0031] Description of the numbers in the figure:

[0032] 100 box body, 101 ring wall, 102 side wall, 103 latch, 104 blocking portion, 105 structural reinforcement, 106 pressure plate, 107 through hole;

[0033] 200 front wheel;

[0034] 300 rear wheel;

[0035] 400 telescopic rod, 401 limiting groove, 402 guide groove, 403 plug hole;

[0036] 500 track, 501 guide groove, 502 through hole, 503 structural part, 504 end cover, 505 flange, 506 pipe sleeve, a central angle;

[0037] 600 shift facilitating parts;

[0038] 700 handlebars;

[0039] 800 push-pull rod. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model are intended to cover non-exclusive inclusions. For example, a method or product comprising a series of technical features is not necessarily limited to those technical features clearly listed, but may also include other technical features that are not clearly listed and can be included in the method or product.

[0042] In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Among them, "upper" and "lower", "left" and "right", "front" and "back" are opposite directions.

[0043] The present invention is described in detail below in conjunction with specific embodiments and drawings.

[0044] like Figure 1-2 The electric suitcase shown includes a suitcase body 100 , front wheels 200 and rear wheels 300 .

[0045] The box 100 comprises a circle wall 101 and two side walls 102. The circle wall 101 is in a ring shape. The two side walls 102 are separately connected to the left and right sides of the circle wall 101. The inner space of the box is surrounded by the circle wall 101 and the two side walls 102. In other embodiments, the box can also be other structural forms. In order to increase structural strength and rigidity, the circle wall 101 can be made of aluminum alloy or plastic, and the two side walls can be made of aluminum alloy, plastic or textile. Moreover, at least one side wall can be opened so as to open the box to store items in the inner space of the box.

[0046] A straight tubular track 500 is fixed at the lower part of the box body 100, and the front end of the track 500 is fixed to the front wall of the circle wall 101. Figure 3-7 As shown, the front wall of the enclosure wall 101 is fixedly assembled with a structural reinforcement 105 by fasteners, the front end of the track is fixed with a pipe sleeve 506, and the front side of the structural reinforcement has a pressing plate 106, then the pressing plate 106 and the pipe sleeve 506 are separated on both sides of the structural reinforcement 105 and fastened with fasteners to assemble the pressing plate, the pipe sleeve and the structural reinforcement together, so that the front end of the track is fixed to the front wall of the enclosure wall 101. The structural reinforcement has a through hole 107 corresponding to the track. The rear end of the track 500 is fixed with a flange 505, and the flange 505 is fixedly assembled to the rear wall of the enclosure wall 101 by fasteners. Accordingly, the track is extended forward and backward and fixed to the box body.

[0047] The track 500 is equipped with a straight tubular telescopic rod 400 that can be manually pushed and pulled to move forward and backward to an extended position or a retracted position along the length direction of the track. The telescopic rod 400 is inserted into the track from the through hole on the structural reinforcement and can be manually pushed and pulled to move along the length direction of the track to an extended position or a retracted position, thereby increasing or reducing the distance between the front wheel and the rear wheel. When the telescopic rod is moved to the extended position, the distance between the front wheel and the rear wheel increases. When the telescopic rod is moved to the retracted position, the distance between the front wheel and the rear wheel decreases and the handle bar 700 is close to the box body. The electric suitcase omits the electric push rod, has a simple structure, reduces manufacturing costs, reduces power consumption, and extends the battery life of the electric suitcase. The movement of the telescopic rod is not affected when there is a power shortage.

[0048] The front end of the telescopic rod 400 is equipped with a front wheel 200, and the figure shows that there is only one front wheel. The front end of the telescopic rod 400 is also equipped with a vertical handle bar 700. Rotating the handle bar around the vertical axis can change the direction of the front wheel, thereby changing the direction of the suitcase when walking. The lower rear part of the box body 100 is equipped with rear wheels 300, and the figure shows that there are two rear wheels and they are symmetrically distributed relative to the box body.

[0049] The figure shows an electric suitcase, in which the front wheel 200 or the rear wheel 300 can be used as a driving wheel to drive the suitcase to move. The driving wheel includes a hub motor and a wheel body configured on the hub motor. A power source is configured on the box body, and after the hub motor is powered on, the hub motor can drive the wheel body to rotate to drive the suitcase to move. In the figure, one front wheel and two rear wheels distributed in three positions support the suitcase to make it stand steadily. In other embodiments, one rear wheel and two front wheels distributed in different positions can also support the suitcase to make it stand steadily.

[0050] The box body 100 is also provided with a push-pull rod 800. The push-pull rod 800 is retractable and variable so as to be extended for pushing and pulling the suitcase or to be stored in the box body as shown in the figure.

[0051] In the illustrated structure, the suitcase is set to move forward in the illustrated direction, and the front wheels and rear wheels are named according to such direction settings. When in use, the push-pull rod configured on the suitcase body can be used to drag the suitcase to move backward as shown in the figure, and the front wheels become rear wheels, and the rear wheels become front wheels.

[0052] In the illustrated structure, the telescopic rod is fixed at the extended position or the retracted position by the latch 103. Specifically, a plug hole 403 is provided on the telescopic rod corresponding to the extended position and the retracted position. The latch 103 is fixed on the structural reinforcement of the box body and exposed outside the box body. When the telescopic rod moves forward and backward to the extended position or the retracted position, the latch 103 is inserted into the corresponding plug hole 403 to position the telescopic rod. The telescopic rod can be moved forward and backward by pulling the latch out of the corresponding plug hole.

[0053] In the illustrated structure, the telescopic rod 400 is provided with a limiting groove 401 extending along its length direction, the rear end of the limiting groove 401 is blocked, and the structural reinforcement member 105 constituting the box body is provided with a blocking portion 104, which extends into the limiting groove 401 to limit the telescopic rod to keep the telescopic rod assembled with the track and prevent the telescopic rod from falling out of the track. In other embodiments, the blocking portion can be provided on the track.

[0054] In the illustrated structure, a displacement promoting member 600 is disposed between the outer wall of the telescopic rod 400 and the inner wall of the track 500. The displacement promoting member is a roller. The displacement promoting member maintains a gap between the outer wall of the telescopic rod and the inner wall of the track to promote the flexible extension and retraction of the telescopic rod relative to the track. Further, the outer wall of the telescopic rod 400 is provided with a guide groove 402 extending along the length direction, and the inner wall of the track 500 is provided with a guide groove 501 extending along the length direction, and the roller is located in the corresponding guide groove. In other embodiments, the guide groove can be only provided on the outer wall of the telescopic rod or the inner wall of the track. In the illustrated structure, a through hole 502 is provided on the tube wall of the track 500, and a structural member 503 is assembled at the through hole 502. The inner wall of the structural member 503 serves as the inner wall of the track. The two ends of the guide groove 501 arranged on the structural member are blocked by end covers 504, and accordingly, the roller is limited in the guide groove 501. Furthermore, the cross-sectional profile of the guide groove 501 on the structural member is in the shape of an arc, and the central angle a of the arc is greater than 180°. This can constrain the roller in the guide groove of the structural member, and during assembly, the roller, the end cover and the structural member are first assembled together, and then fixed to the track together, so that the roller will not escape during the assembly process.

[0055] In other embodiments, the displacement facilitating member may be a sliding sleeve.

Claims

1. An electric luggage case, comprising a case body (100), front wheels (200) and rear wheels (300), characterized in that: A straight track (500) is fixed to the box body, a straight telescopic rod (400) is mounted on the track (500) and can be manually pushed and pulled to move to an extended position or a retracted position along the length direction of the track, and a front wheel (200) or a rear wheel (300) is mounted on the telescopic rod (400); The track (500) and the telescopic rod (400) are both tubular, and the telescopic rod (400) is inserted into the track (500); A displacement promoting member (600) is disposed between the outer wall of the telescopic rod (400) and the inner wall of the track (500). The displacement promoting member (600) maintains a gap between the outer wall of the telescopic rod (400) and the inner wall of the track (500) to promote flexible telescopic movement of the telescopic rod relative to the track.

2. The electric luggage case according to claim 1, characterized in that: The telescopic rod (400) is fixed at an extended position or a retracted position by a latch (103).

3. The electric luggage case according to claim 2, characterized in that: The latch (103) is fixed to the box body (100) and exposed outside the box body.

4. The electric luggage case according to claim 1, characterized in that: The telescopic rod (400) is limited by the blocking portion (104) to keep the telescopic rod (400) assembled with the track (500).

5. The electric luggage case according to claim 4, characterized in that: The telescopic rod (400) is provided with a limiting groove (401) extending along the length direction thereof, and the blocking portion (104) is fixed to the box body or the track and extends into the limiting groove (401).

6. The electric luggage case according to claim 1, characterized in that: The displacement promoting member (600) is a roller, and the outer wall of the telescopic rod and / or the inner wall of the track are provided with a guide groove extending along the length direction, and the roller is located in the guide groove.

7. The electric luggage case according to claim 6, characterized in that: A through hole (502) is provided on the tube wall of the track (500), a structural member (503) is assembled at the through hole (502), a guide groove is arranged on the structural member (503), and both ends of the guide groove are blocked by end covers (504).

8. The electric luggage case according to claim 7, characterized in that: The cross-sectional profile of the guide groove on the structural member is in the shape of an arc, and the central angle (a) of the arc is greater than 180°.

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