Intelligent electric luggage case

Abstract

The utility model discloses an intelligent electric luggage case, which belongs to the field of luggage cases, and comprises a case body, a rear wheel fixing piece mounted on the rear side of the bottom of the case body, two rear wheels symmetrically mounted on the two sides of the rear wheel fixing piece, and a first electric telescopic push rod positioned at the bottom of the case body and arranged in the front-back direction of the case body, two parallel first rotating connecting rods are connected between an axle of each rear wheel and the rear wheel fixing piece, the rear end of the first electric telescopic push rod is fixed to the middle of the rear wheel fixing piece, and a second rotating connecting rod is connected between any first rotating connecting rod on the corresponding side of each rear wheel and the front end of the first electric telescopic push rod. A first electric telescopic push rod stretches and retracts back and forth to drive a first rotating connecting rod and a second rotating connecting rod to rotate, then the two rear wheels are driven to expand outwards and contract inwards, the two rear wheels are expanded outwards in the using process, the wheel distance between the two rear wheels can be increased, and the overall stability of the luggage case is improved; and when not in use, the device can be contracted inwards to reduce space occupation.

Description

Technical Field

[0001] The present application relates to the field of luggage cases, and in particular to an intelligent electric luggage case. Background Art

[0002] A suitcase, also known as a travel suitcase or a trolley case, is a box that is carried when going out and used to store items, such as clothes and daily necessities needed for the journey. An electric suitcase is an improvement on a traditional suitcase, which is rideable to reduce the burden of carrying the suitcase. However, the inventor found in the research process of this application that the wheels of the existing electric suitcase cannot be folded or unfolded, and are limited by the width of the suitcase body itself, resulting in a narrow wheel spacing and low overall stability of the suitcase. Utility Model Content

[0003] The present application provides a smart electric suitcase to solve the problems raised in the background technology.

[0004] A smart electric suitcase comprises a case body, a rear wheel fixing part installed on the rear side of the bottom of the case body, two rear wheels symmetrically installed on both sides of the rear wheel fixing part, and a first electric telescopic push rod located at the bottom of the case body and arranged along the front-to-back direction of the case body, two mutually parallel first rotating connecting rods are connected between the wheel axle of each rear wheel and the rear wheel fixing part, the two ends of each first rotating connecting rod are respectively rotatably connected to the wheel axle of the rear wheel and the rear wheel fixing part, the rear end of the first electric telescopic push rod is fixed to the middle part of the rear wheel fixing part, a second rotating connecting rod is connected between any first rotating connecting rod on one side corresponding to each rear wheel and the front end of the first electric telescopic push rod, and the two ends of the second rotating connecting rod are respectively rotatably connected to the first rotating connecting rod and the front end of the first electric telescopic push rod.

[0005] Preferably, the axle of each rear wheel is equipped with an axle connecting member, and the axle connecting member is rotatably connected to the end of the first rotating link.

[0006] Preferably, the rear wheel fixing piece is L-shaped and fits with the bottom wall and the rear wall of the box.

[0007] Preferably, the smart electric suitcase further includes a slide rail fixed inside the case, a telescopic rod installed on the slide rail and capable of sliding along the slide rail and protruding out of the case, a second electric telescopic push rod for driving the telescopic rod to slide, and a steering device arranged on the front side of the case and rotatably connected to the front end of the telescopic rod.

[0008] Preferably, the steering device includes a fixed rod and a lifting rod, the fixed rod is rotatably connected to the front end of the telescopic rod, the lifting rod is slidably installed on the upper part of the fixed rod and can slide up and down along the fixed rod and be positioned and fixed, and a front wheel is installed at the bottom of the fixed rod.

[0009] Preferably, the front wheel and / or the two rear wheels are hub motor wheels.

[0010] Preferably, a battery and a battery slot are provided at the rear of the box, and the battery is detachably installed in the battery slot.

[0011] It can be seen from the above technical solution that the smart electric suitcase provided by the present application is provided with a first electric telescopic push rod at the bottom of the suitcase body, and the forward and backward extension of the first electric telescopic push rod is used to drive the first rotating link and the second rotating link to rotate, thereby driving the two rear wheels to expand outward and retract inward. When in use, the two rear wheels are expanded outward to increase the wheel spacing between the two rear wheels, thereby improving the overall stability of the suitcase. When not in use, they can also be retracted inward to reduce space occupancy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A side view of the smart electric luggage provided for this application;

[0013] Figure 2 A three-dimensional diagram of the connection between the rear wheel fixing member and the rear wheel in the smart electric luggage provided in the present application;

[0014] Figure 3 A schematic diagram of the connection between the rear wheel, the rear wheel fixing member, and the first electric telescopic push rod in the smart electric luggage case provided in the present application in the unfolded state;

[0015] Figure 4 A three-dimensional diagram of the rear wheel and the wheel axle connection in the smart electric luggage provided in this application;

[0016] Figure 5 A schematic diagram of the connection between the rear wheel in a retracted state and the rear wheel fixing member and the first electric telescopic push rod in the smart electric luggage case provided in the present application;

[0017] Figure 6 A rear perspective view of the smart electric luggage case provided in the present application with the rear wheels deployed;

[0018] Figure 7 A rear perspective view of the smart electric luggage case provided in the present application with the rear wheels retracted;

[0019] Figure 8 A schematic diagram of the internal structure of the smart electric luggage provided for this application;

[0020] Fig. 9 A front perspective view of the front baffle of the smart electric luggage provided in the present application;

[0021] Fig.10 A rear perspective view of the front baffle in the smart electric luggage case provided in this application;

[0022] Fig.11 A schematic diagram of the location of the opening in the smart electric suitcase provided in this application.

[0023] Wherein: 10-box, 101-slide rail, 102-telescopic rod, 103-second electric telescopic push rod, 104-steering device, 105-controller, 106-fixed rod, 107-lifting rod, 108-front wheel, 109-opening, 110-front baffle, 111-jack, 112-groove, 113-battery, 114-battery slot, 115-rear pull rod, 116-power switch, 117-control switch, 20-rear wheel fixing part, 201-rear wheel, 202-axle, 203-first rotating connecting rod, 204-second rotating connecting rod, 205-axle connecting part, 206-connecting rod slot, 207-axle hole, 208-pin shaft, 209-third rotating connecting rod, 30-first electric telescopic push rod, 301-connecting rod connecting part. DETAILED DESCRIPTION

[0024] The specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings, but are not intended to limit the scope of protection of the present invention. The terms "front", "rear", "left", "right", "upper", "lower", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only intended to facilitate the description of the present invention and simplify 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. The terms "first" and "second" are only used to simplify the textual description to distinguish similar objects, and cannot be understood as a chronological relationship between specific orders.

[0025] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 The present application provides an intelligent electric suitcase, comprising a case 10, a rear wheel fixing member 20 installed on the rear side of the bottom of the case 10, two rear wheels 201 symmetrically installed on both sides of the rear wheel fixing member 20, and a first electric telescopic push rod 30 located at the bottom of the case 10 and arranged along the front-to-back direction of the case 10, the rear end of the first electric telescopic push rod 30 being a fixed end, and the front end being a telescopic end, two mutually parallel first rotating links 203 being connected between the wheel axle 202 of each rear wheel 201 and the rear wheel fixing member 20, the two ends of each first rotating link 203 being rotatably connected to the wheel axle 202 of the rear wheel and the rear wheel fixing member 20, the rear end of the first electric telescopic push rod 203 being fixed to the middle part of the rear wheel fixing member 20, a second rotating link 204 being connected between any first rotating link 203 on one side corresponding to each rear wheel 201 and the front end of the first electric telescopic push rod 30, the two ends of the second rotating link 204 being rotatably connected to the first rotating link 203 and the front end of the first electric telescopic push rod 30, respectively.

[0026] See also Figure 3 , Figure 5 , Figure 6 and Figure 7 When the electric luggage case is not in use, the front end of the first electric telescopic push rod 30 is in an extended state, and the two rear wheels 201 are retracted inwardly toward the case body 10. When switched to the use state, the front end of the first electric telescopic push rod 30 moves backward, driving the second rotating link 204 to push the first rotating link 203 backward, the first rotating link 203 rotates relative to the rear wheel fixing member 20, and drives the two rear wheels 201 to expand outwardly. When switched to the unused state, the front end of the first electric telescopic push rod 30 moves forward, driving the second rotating link 204 to pull the first rotating link 203 forward, the first rotating link 203 rotates relative to the rear wheel fixing member 20, and drives the two rear wheels 201 to retract inwardly.

[0027] See also Figures 2 to 4 The wheel axle 202 of each rear wheel 201 is installed with an axle connecting member 205, and the axle connecting member 205 is arranged along the front-to-back direction of the box body 10. A connecting rod slot 206 adapted to the end of the first rotating connecting rod 203 is opened inside the wheel axle connecting member 205, and the front and rear ends of the connecting rod slot 206 and the end of the first rotating connecting rod 203 are provided with axial holes 207. The two parallel first rotating connecting rods 203 on the corresponding side of each rear wheel 201 are respectively inserted into the front and rear ends of the connecting rod slot 206, and are rotatably connected to the wheel axle connecting member 205 by inserting a pin 208 into the axial hole 207. The rear wheel fixing member 20 is provided with two third rotating links 209 corresponding to the two rear wheels respectively and arranged along the front-to-back direction of the box body 10. The front end and the rear end of the third rotating link 209 are provided with shaft holes 207. The two parallel first rotating links 203 on one side corresponding to each rear wheel 201 are respectively rotatably connected with the front end and the rear end of the third rotating link 209. The third rotating link 209, the two first rotating links 203 and the wheel axle connecting member 205 form a parallelogram connecting rod structure. The front end of the first electric telescopic push rod 30 is provided with a connecting rod connecting member 301. The connecting rod connecting member 301, the two ends of the second rotating link 204 and the middle part of the first rotating link 203 are provided with shaft holes 207. One end of the second rotating link 204 is rotatably connected with the connecting rod connecting member 301 through the pin 208 inserted into the shaft hole 207, and the other end of the second rotating link 204 is rotatably connected with the middle part of the first rotating link 203 through the pin 208 inserted into the shaft hole 207. The rear wheel fixing member 20 is L-shaped and fits with the bottom wall and the rear wall of the box body 10 to improve the overall aesthetics of the electric suitcase and the installation strength of the rear wheel fixing member 20 .

[0028] See also Figure 6 , Figures 8 to 11The smart electric suitcase provided in the present application also includes a slide rail 101 fixed inside the box body 10, a telescopic rod 102 installed on the slide rail 101 and capable of sliding along the slide rail 101 and protruding out of the box body 10, a second electric telescopic push rod 103 for driving the telescopic rod 102 to slide, and a steering device 104 arranged on the front side of the box body 10 and rotatably connected to the front end of the telescopic rod 102. One end of the second electric telescopic push rod 103 is fixed to the box body 10, and the other end is connected to the telescopic rod 102. The telescopic rod 102 is electrically telescopic in the front and rear directions under the drive of the second electric telescopic push rod 103. A controller 105 is provided inside the box body 10, and the first electric telescopic push rod 30 and the second electric telescopic push rod 103 are both connected to the controller 105 by signal.

[0029] The steering device 104 includes a fixed rod 106 and a lifting rod 107. The fixed rod 106 is rotatably connected to the front end of the telescopic rod 102. The lifting rod 107 is slidably installed on the upper part of the fixed rod 106 and can slide up and down along the fixed rod 106 and be positioned and fixed. A front wheel 108 is installed at the bottom of the fixed rod 106. The front wheel 108 and / or the two rear wheels 201 use hub motor wheels to provide moving power for the electric suitcase.

[0030] An opening 109 is provided at the front of the box body 10, and a front baffle 110 is installed at the opening 109. A hole 111 is provided at the upper part of the front baffle 110 for the telescopic rod 102 to pass through, and a groove 112 is provided at the lower part of the front baffle 110. The groove 112 is adapted to the front wheel 108. When the telescopic rod 102 is in a retracted state, the front wheel 108 is located in the groove 112; the slide rail 101 is arranged at the hole 111 and is integrally formed with the front baffle 110.

[0031] A battery 113 and a battery slot 114 are provided at the rear of the case 10. The battery 113 is detachably installed in the battery slot 114. A rear pull rod 115, a power switch 116 and a control switch 117 are also provided at the rear of the case 10. The rear pull rod 115 is used for the user to manually push and pull the suitcase when the suitcase is not in the riding state. The power switch 116 and the control switch 117 are both connected to the controller 105. The power switch 116 is used to control the opening and closing of the total power supply of the suitcase. The control switch 117 is used to control the first electric telescopic push rod 30 and the second electric telescopic push rod 103. When switched to the use state, the user manipulates the control switch 117, the second electric telescopic push rod 103 drives the telescopic rod 102 to extend outward, and the first electric telescopic push rod 30 drives the two rear wheels 201 to expand outward; when switched to the non-use state, the user manipulates the control switch 117 again, the second electric telescopic push rod 103 drives the telescopic rod 102 to retract inward, and the first electric telescopic push rod 30 drives the two rear wheels 201 to retract inward.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Therefore, although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A smart electric luggage box, characterized in that: It includes a box body, a rear wheel fixing part installed on the rear side of the bottom of the box body, two rear wheels symmetrically installed on both sides of the rear wheel fixing part, and a first electric telescopic push rod located at the bottom of the box body and arranged along the front-to-back direction of the box body, two mutually parallel first rotating connecting rods are connected between the wheel axle of each rear wheel and the rear wheel fixing part, the two ends of each first rotating connecting rod are respectively rotatably connected to the wheel axle of the rear wheel and the rear wheel fixing part, the rear end of the first electric telescopic push rod is fixed to the middle part of the rear wheel fixing part, a second rotating connecting rod is connected between any first rotating connecting rod on one side corresponding to each rear wheel and the front end of the first electric telescopic push rod, and the two ends of the second rotating connecting rod are respectively rotatably connected to the first rotating connecting rod and the front end of the first electric telescopic push rod.

2. The smart electric luggage according to claim 1, characterized in that: The wheel axle of each rear wheel is equipped with a wheel axle connecting member, and the wheel axle connecting member is rotatably connected to the end of the first rotating connecting rod.

3. The smart electric luggage according to claim 1, characterized in that: The rear wheel fixing piece is L-shaped and fits with the bottom wall and the rear wall of the box body.

4. The intelligent electric luggage case according to claim 1, characterized in that: The intelligent electric luggage case also includes a slide rail fixed inside the case, a telescopic rod installed on the slide rail and capable of sliding along the slide rail and protruding out of the case, a second electric telescopic push rod for driving the telescopic rod to slide, and a steering device arranged at the front side of the case and rotatably connected to the front end of the telescopic rod.

5. The intelligent electric luggage case according to claim 4, characterized in that: The steering device includes a fixed rod and a lifting rod, the fixed rod is rotatably connected to the front end of the telescopic rod, the lifting rod is slidably installed on the upper part of the fixed rod and can slide up and down along the fixed rod and be positioned and fixed, and a front wheel is installed at the bottom of the fixed rod.

6. The intelligent electric luggage case according to claim 5, characterized in that: The front wheel and / or the two rear wheels are hub motor wheels.

7. The intelligent electric luggage case according to claim 1, characterized in that: A battery and a battery slot are provided at the rear of the box body, and the battery is detachably installed in the battery slot.

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