Electric luggage case

Abstract

The invention relates to an electric luggage case. A left frame is connected to the left side of a case body, the left frame extends backwards to form a first expansion area, a plurality of second expansion areas are arranged on the right side of the case body, a lifting groove is formed in the top of the rear side of the case body in a concave mode, a lifting handle is arranged in the lifting groove in a sliding mode, and main wheels are rotationally arranged on the front side of the bottom of a shell through hinge grooves. According to the invention, the elastically rotating pedal plates are arranged, so that the pedal plates protrude out of the planes on the two sides of the box body during use, the legs of a user can naturally stretch outwards, the whole center is lowered, and the luggage box is prevented from easily toppling over in the driving process; the luggage case is further provided with the expandable rear wheel set, the rear wheel set is expanded and lowered before a user sits on the luggage case, the bottom area of the whole luggage case is enlarged, meanwhile, the gravity center position on the rear side of the luggage case is lowered again through the external force applied to the luggage case when the user drives the luggage case, and then the stability of the whole luggage case is improved; and the situation that toppling occurs easily is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of luggage cases, and in particular relates to an electric luggage case. Background Art

[0002] A suitcase is one of the travel accessories used to carry items during a trip, but ordinary suitcases are more laborious to drag, especially when moving long distances or carrying heavy objects. Long-term dragging will cause inconvenience and fatigue to users. In order to achieve a more relaxed travel, electric suitcases came into being. They combine the storage function of traditional suitcases with the mobility function of electric vehicles, providing users with a new travel option. They show obvious advantages in transportation hubs with relatively stable terrain, such as airports and stations, especially when carrying heavy objects, which can significantly reduce the burden on users. Not only that, when there are no obvious obstacles around, users can also sit directly on the electric suitcase and move it by driving the electric suitcase, thereby reducing the user's walking distance, achieving fast movement and alleviating fatigue caused by long-term walking, and reducing the transportation pressure on the human body.

[0003] In the process of carrying and moving a human body, one side of the single-sided wheel is usually the front side, which is mainly used to control the forward and backward movement and adjust the direction of movement, and the double-sided wheel side is the balance side, which provides a smooth movement during the whole moving process; for example, the utility model patent with patent announcement number CN208550268U discloses an electric luggage case, including a case body, a battery, a sleeve fixed inside the case body, a telescopic rod installed in the sleeve and protruding out of the case body relative to the sliding surface of the sleeve, and two rear wheels arranged at the bottom of the case body, the front end of the telescopic rod is connected with a front handle bar and a front wheel, and the case body has a neck for riding, and the case body has a neck for riding, which can be used for users to sit. Although this electric luggage case uses three relatively large wheels as support points, which can improve the balance of the electric luggage case when bearing weight and prevent the user from tipping over when driving, the rear wheels all protrude from the side plane of the electric luggage case, that is, the entire luggage case will present an irregular appearance, which is not conducive to the horizontal placement of the electric luggage case when not carrying people.

[0004] Therefore, an electric suitcase is designed which does not change the appearance of the suitcase when no passengers are on board, and is placed smoothly; at the same time, the rear wheels are set to be adjustable to prevent the suitcase from tipping over when passengers are on board, causing the user to fall and the suitcase to be damaged. Summary of the invention

[0005] The object of the present invention is to provide an electric luggage case to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an electric luggage case comprises a case body, a left frame is connected to the left side of the case body, the left frame is extended backward to be provided with a first expansion area, and the right side of the case body is provided with multiple second expansion areas, a lifting groove is recessed in the top of the rear side of the case body, a lifting handle is slidably provided in the lifting groove, a main wheel is rotatably provided at the front side of the bottom of the shell through a hinge groove, the hinge groove passes through the shell and is upwardly connected to a connecting shaft, a slide groove is opened at the front side of the case body, a slide cylinder is downwardly installed in the slide groove, a telescopic rod is slidably provided in the slide cylinder, a transverse operating rod is provided at the top of the telescopic rod, an adjustment key is provided at the middle side of the top of the transverse operating rod, and reversing keys are also rotatably provided on the left and right sides of the transverse operating rod, an adjustment groove is recessed at the rear side of the bottom of the case body, a first driving member is provided at the top of the adjustment groove, an adjustment member is connected to the bottom of the telescopic rod of the first driving member, and a first secondary wheel and a second secondary wheel are rotatably provided in the adjustment member.

[0007] Preferably, the adjusting member has a shell, an operating panel is provided on the rear side of the inner wall of the shell, guide rails are symmetrically provided on the top of the operating panel, a sliding member is slidably provided on the guide rail, a secondary rail is provided on the inner side of the sliding member, a stop block is connected to the secondary rail through a slider, and a support member is provided on the outer side of the stop block.

[0008] Preferably, the stop block and the support member are both L-shaped, and the two support members are interlocked.

[0009] Preferably, auxiliary guide rails are symmetrically arranged at the bottom of the operation panel, auxiliary support members are slidably arranged between the auxiliary guide rails via auxiliary sliders, and a rocker rod is connected between the auxiliary guide rails and the adjacent support members.

[0010] Preferably, a mounting frame is provided at the bottom of the shell, a fixed sleeve is installed at the bottom of the mounting frame, the fixed sleeve is connected to the first secondary wheel and the second secondary wheel by slidingly installing the first shaft and the second shaft on the left and right, a retaining ring is provided on the outer side of the first shaft and the second shaft, a retaining sleeve is provided at the bottom of the support member, and the retaining sleeve is located between the first secondary wheel, the second secondary wheel and the retaining ring.

[0011] Preferably, a second driving member is provided on the top of the operating panel, and the second driving member is connected to the sliding member.

[0012] Preferably, a first recovery groove is recessed inwardly at the bottom of the first expansion area, a second recovery groove is provided at a position on the right side of the front frame below the second expansion area, a foot pedal is rotatably connected between the inner walls of the first expansion area and the second expansion area, and a first elastic member is connected between the foot pedal and the first recovery groove and the second recovery groove.

[0013] Preferably, the pulling groove is extended downward to be provided with a withdrawal slot, the left and right inner walls of the withdrawal slot are both provided with limit blocks, and a battery is slidably installed in the pulling groove.

[0014] Preferably, a clamping rod is extended outwardly on both the left and right sides of the horizontal operating rod, a plurality of clamping holes are opened on the front side of the clamping rod, an extension rod is slidably provided on the clamping rod, and a clamping bead is connected to the inner rear side of the extension rod through a second elastic member.

[0015] Preferably, a controller is further included, and the controller is installed on the mobile terminal. The controller is respectively connected to the adjustment key, the reversing key, the battery, the first driving member and the second driving member.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention provides an elastically rotatable foot pedal so that the foot pedal protrudes from the two side planes of the box body when in use, and the user's legs will naturally spread outwards, lowering the overall center, thereby preventing the suitcase from easily tipping over during driving;

[0018] The present invention provides a pluggable battery so that the user can easily power the driving parts inside the electric suitcase to drive the electric suitcase to move.

[0019] The present invention provides a lateral operating rod with adjustable height and an extension rod with adjustable length to the left and right to adapt to the optimal driving shoulder width of different people, so that when the user drives the suitcase, the arms and shoulders can be at an appropriate height to achieve balance with the suitcase, avoiding tipping due to poor balance caused by excessive gathering of arms and shoulders;

[0020] The present invention is also provided with an expandable rear wheel set, which is expanded and lowered before sitting on the suitcase, thereby expanding the bottom area of ​​the entire suitcase. At the same time, through the external force applied to the suitcase by the user when driving, the center of gravity position at the rear side of the suitcase is lowered again, thereby increasing the stability of the entire suitcase and preventing it from tipping over easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a non-driving state diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 3 An exploded view of the present invention;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the left frame and the right frame in the present invention;

[0025] Figure 5 It is a first partial exploded view of the present invention;

[0026] Figure 6 It is a second partial exploded view of the present invention;

[0027] Figure 7 It is the explosion diagram of point a in the present invention;

[0028] Figure 8 is a cross-sectional view of the extension rod of the present invention;

[0029] Fig. 9 It is a three-dimensional structural schematic diagram of the adjusting member in the present invention;

[0030] Fig.10 This is a first non-driving state diagram of the adjustment member in the present invention;

[0031] Fig.11 This is a second non-driving state diagram of the adjustment member in the present invention;

[0032] Fig.12 It is a partial exploded view of the adjusting member in the present invention;

[0033] Fig.13 is a driving state diagram of the present invention;

[0034] Fig.14 This is a first driving state diagram of the adjustment member in the present invention;

[0035] Fig.15 This is a second driving state diagram of the adjusting part in the present invention.

[0036] Numbers in the figure: 1-box, 2-left frame, 201-first expansion area, 3-right frame, 301-second expansion area, 4-lifting groove, 5-lifting handle, 6-hinge groove, 61-main wheel, 7-connecting shaft, 8-sliding groove, 9-sliding cylinder, 10-telescopic rod, 11-lateral operating rod, 12-adjusting key, 13-reversing key, 14-adjusting groove, 15-first driving member, 16-adjusting member, 161-housing, 162-operating panel, 163-guide rail, 164-sliding member, 165-auxiliary rail, 166-sliding block, 167-block, 168-support member;

[0037] 17-first auxiliary wheel, 18-second auxiliary wheel, 19-auxiliary guide rail, 20-auxiliary slider, 21-auxiliary support member, 22-rocker;

[0038] 23-mounting frame, 24-fixed sliding sleeve, 25-first shaft, 26-second shaft, 27-clamping ring, 28-clamping sleeve;

[0039] 29- second driving member;

[0040] 30-first recovery slot, 31-second recovery slot, 32-foot pedal, 33-first elastic member;

[0041] 34-slot, 35-limiting block, 36-battery;

[0042] 37 - clamping rod, 38 - clamping hole, 39 - extension rod, 40 - second elastic member, 41 - clamping bead. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Example 1

[0045] like Figures 1 to 15The electric suitcase shown includes a case body 1, a left frame 2 is connected to the left side of the case body 1, the left frame 2 extends backward to be provided with a first expansion area 201, a plurality of second expansion areas 301 are provided on the right side of the case body 1, a lifting groove 4 is recessed at the top of the rear side of the case body 1, a lifting handle 5 is slidably provided in the lifting groove 4, a main wheel is rotatably provided at the front side of the bottom of the shell 161 through a hinge groove 6, the hinge groove 6 passes through the shell 161 and is upwardly connected to a connecting shaft 7, and is characterized in that a slide groove 8 is opened on the front side of the case body 1, a slide cylinder 9 is downwardly installed in the slide groove 8, a telescopic rod 10 is slidably provided in the slide cylinder 9, a transverse operating rod 11 is provided on the top of the telescopic rod 10, an adjustment key 12 is provided on the top middle side of the transverse operating rod 11, and reversing keys 13 are also rotatably provided on the left and right sides of the transverse operating rod 11, An adjustment groove 14 is recessed at the rear side of the bottom of the box body 1, and a first driving member 15 is provided at the top of the adjustment groove 14. An adjustment member 16 is connected to the bottom of the telescopic rod 10 of the first driving member 15, and a first auxiliary wheel 17 and a second auxiliary wheel 18 are rotatably provided in the adjustment member 16; the adjustment member 16 includes a shell 161, and an operating panel 162 is provided at the rear side of the inner wall of the shell 161. Guide rails 163 are symmetrically provided at the top of the operating panel 162, and a sliding member 164 is slidably provided on the guide rail 163. A secondary rail 165 is provided on the inner side of the sliding member 164, and a stop block 167 is connected to the auxiliary rail 165 through a slider 166, and a support member 168 is provided on the outer side of the stop block 167; the stop block 167 and the support member 168 are both L-shaped, and the two support members 168 are interlocked; the bottom of the operating panel 162 Auxiliary guide rails 19 are symmetrically arranged on the left and right sides, and auxiliary support members 21 are slidably arranged between the auxiliary guide rails 19 through auxiliary sliders 20, and a swing rod 22 is connected between the auxiliary guide rails 19 and the adjacent support member 168; a mounting frame 23 is arranged at the bottom of the housing 161, and a fixed sleeve 24 is installed at the bottom of the mounting frame 23, and the fixed sleeve 24 is connected to the first auxiliary wheel 17 and the second auxiliary wheel 18 by slidingly installing the first shaft 25 and the second shaft 26 on the left and right sides, and the outer sides of the first shaft 25 and the second shaft 26 are both provided with snap rings 27, and a snap ring 28 is arranged at the bottom of the support member 168, and the snap ring 28 is located between the first auxiliary wheel 17, the second auxiliary wheel 18 and the snap ring 27; a second driving member 29 is arranged on the top of the operating panel 162, and the second driving member 29 is connected to the adjacent sliding member 164; the first topology The bottom of the exhibition area 201 is recessed inwardly to provide a first recovery groove 30, and the right side of the left frame 2 is provided with a second recovery groove 31 below the second expansion area 301. A foot pedal 32 is rotatably connected between the inner walls of the first expansion area 201 and the second expansion area 301, and a first elastic member 33 is connected between the foot pedal 32 and the first recovery groove 30 and the second recovery groove 31; the pulling groove 4 extends downward to provide a withdrawal slot 34, and the left and right inner walls of the withdrawal slot 34 are both provided with limit blocks 35, and a battery 36 is slidably installed in the pulling groove 4; the left and right sides of the horizontal operating rod 11 are both extended outward to provide a clamping rod 37, and a plurality of clamping holes 38 are opened on the front side of the clamping rod 37, and an extension rod 39 is slidably provided on the clamping rod 37, and a clamping bead 41 is connected to the inner and rear side of the extension rod 39 through a second elastic member 40;It also includes a controller, which is installed on the mobile terminal and is connected to the adjustment key 12, the reversing key 13, the battery 36, the first driving member 15 and the second driving member 29 respectively.

[0046] The present invention provides an elastically rotatable foot pedal 32 so that the foot pedal 32 protrudes from the two side planes of the box body 1 when in use, and the user's legs will naturally spread outwards, lowering the overall center, thereby preventing the suitcase from easily tipping over during driving;

[0047] The present invention provides a pluggable battery 36, so that the user can easily power the driving parts inside the electric luggage case to drive the electric luggage case to move;

[0048] The present invention provides a lateral operating rod 11 with adjustable height and an extension rod 39 with adjustable length to the left and right to adapt to the optimal driving shoulder width of different people, so that when the user drives the suitcase, the arms and shoulders can be at an appropriate height to achieve balance with the suitcase, avoiding tipping due to poor balance caused by excessive gathering of arms and shoulders;

[0049] The present invention is also provided with an expandable rear wheel set, which is expanded and lowered before sitting on the suitcase, thereby expanding the bottom area of ​​the entire suitcase. At the same time, through the external force applied to the suitcase by the user when driving, the center of gravity position at the rear side of the suitcase is lowered again, thereby increasing the stability of the entire suitcase and preventing it from tipping over easily.

[0050] Example 2

[0051] like Figures 1 to 15An electric suitcase shown includes a case 1, which is through-set from left to right and connected to a left frame 2 and a right frame 3 on the left and right sides. A password lock is provided on the front side of the case 1, that is, when the password lock is located between the case 1 and the left frame 2, the user can place clothes by opening the left frame 2, and when the password lock is located between the case 1 and the right frame 3, the user can place clothes by opening the right frame 3. In addition to the basic storage space in the box body 1, the present embodiment also extends the left frame 2 to the left to provide a first expansion area 201. The first expansion area 201 is actually a square frame made of hard material. The storage space on the right side of the first expansion area 201 is connected with the box body 1 to expand the storage space. Not only that, a second expansion area 301 is also provided on the right side of the right frame 3. The number of second expansion areas 301 is 3, and the specific installation positions are at the three points of "┌". The second expansion area 301 is actually a soft and retractable square frame. A connecting belt is provided on one edge of the square frame, and the other edges are blocked by zippers or the like. Unlike the first expansion area 201, the storage space of the second expansion area 301 is not connected with the box body 1, that is, the three second expansion areas 301 have separate storage space, and users can place shoes, wet clothes, computers and other things that are not convenient to place together with other items to avoid mutual influence and damage, dirt and the like.

[0052] Among them, the bottom of the first expansion area 201 is recessed forward and is provided with a first recovery groove 30, and a second recovery groove 31 is provided on the right frame 3 below the second expansion area 301. The highest points of the first recovery groove 30 and the second recovery groove 31 are both lower than the first expansion area 201 and the second expansion area 301. Then, when the foot pedal 32 is rotatably connected between the inner walls of the first expansion area 201 and the second expansion area 301, the foot pedal 32 can be retracted into the first recovery groove 30 and the second recovery groove 31 when the foot pedal 32 is not in use, so as to prevent the foot pedal 32 from protruding out of the plane and colliding with the human body or other objects, causing damage to the foot pedal 32 or even injuring people.

[0053] A first elastic member 33 is connected between the foot pedal 32 and the first recovery groove 30 and the second recovery groove 31. The first elastic member 33 is specifically a torsion spring. Under the action of the torsion spring, the foot pedal 32 can be kept in the state of being recovered in the recovery groove without being subjected to external force. When in use, people turn the foot pedal 32 over, and the bottom edges of the first recovery groove 30 and the second recovery groove 31 will press against the foot pedal 32 to present a horizontal state for the placement of the foot. Compared with the common portable foot pedal 32, the foot pedal 32 in this embodiment is wider, and a wave pattern is also provided on the top of the foot pedal 32 (i.e., the contact surface with the foot), which can maintain stable support for the foot and increase friction with the sole of the foot to prevent the human foot from slipping during movement, so that the human foot will feel panic after suddenly leaving the foot pedal 32 and cause a fall.

[0054] Example 3

[0055] like Figures 1 to 15 An electric suitcase shown in the figure includes a case body 1, a left frame 2 and a right frame 3, which constitute the entire storage space of the present invention. A handle is provided on the top of the case body 1, that is, when the user needs to carry the entire suitcase for non-horizontal movement, such as getting on or off a vehicle, passing a security check, etc., the user can lift the entire suitcase upwards with one hand through the handle and use the other hand to hold the bottom of the suitcase for auxiliary force, thereby lifting the entire suitcase.

[0056] The top of the rear side of the box body 1 is inclined downward and is concavely provided with a pull groove 4, and a pull handle 5 is slidably provided in the pull groove 4. Specifically, the pull handle 5 is in the shape of two rods that slide upward from the inside of the box body 1. The tops of the rods are connected by a pull block, and then the user pulls the pull block to drive the two rods to move upward together. The top curvature of the pull block is consistent with the angle of the suitcase, which can prevent the pull handle 5 from protruding from the edge of the suitcase when it is retracted, causing contact and collision with the human body or other objects. In short, the pull handle 5 can meet the height adjustment requirements and fix its height after adjustment to adapt to different user needs and scenarios:

[0057] When the luggage case is retracted, it means that the luggage case is in a non-manual driving scenario; the handle 5 of moderate length allows the user to push the luggage case horizontally to move; the longer handle 5 allows the user to tilt the entire luggage case and move the luggage case quickly and labor-savingly by relying on the wheels on one side. In actual application, the height adjustment degree of the handle 5 needs to be specifically referenced according to the height of the user.

[0058] The pulling slot 4 extends downward to be provided with a withdrawal slot 34, the width of which is smaller than the pulling slot 4, and then a battery 36 is slidably installed in the pulling slot 4, and the battery 36 powers the driving parts inside the electric suitcase, including but not limited to driving the wheels to rotate automatically, thereby driving the entire suitcase to move the motor, providing a USB charging interface for external electrical appliances (mobile phones, tablets), and GPS that can find the position of the suitcase at any time to achieve positioning and tracking, etc. The external battery 36 also makes it simple and quick to change the power source of the electric suitcase. When replacing and installing, the user inserts the contact end of the battery 36 into the drawer slot 34 with the contact end facing downward until it is inserted into the interface at the bottom of the drawer slot 34 (not shown in the figure), thereby completing the electrical connection and power supply to the internal electrical appliances. In order to prevent the battery 36 from falling out and affecting the use, the present embodiment also provides limit blocks 35 on the left and right inner walls of the drawer slot 34 to achieve multi-directional limit of the battery 36. At the same time, when the lifting handle 5 is in the retracted state so that it can be placed alone or for people to drive, the bottom of the lifting handle 5 can also reinforce the limit of the battery 36 again to prevent the battery 36 from falling out.

[0059] Example 4

[0060] like Figures 1 to 15 The electric suitcase shown in the figure can be driven by a user while sitting on the suitcase, so as to realize easy travel in stable terrain. When driving, the case 1 provides support for the buttocks, and the foot pedal 32 supports the legs. To maintain further stability, a first groove is provided on the front side of the case 1 (i.e., the side opposite to the handle 5), in which a slide 9 is downwardly installed, and a telescopic rod 10 is slidably provided in the slide 9. The telescopic rod 10 is normally retracted into the slide 9, so as to lower the center of gravity of the front side of the suitcase, so as to avoid the user having to use more force to push the entire suitcase when the user pushes the handle 5 to move it, and thus the product cannot be easily used.

[0061] The most important thing is that when the user needs to sit on the suitcase to move, the telescopic rod 10 can be pushed upward to an appropriate height, which is roughly slightly lower than the user's shoulder height, and the height adjustment can be operated through the transverse operating rod 11 set on the top of the telescopic rod 10. An adjustment key 12 is set on the top middle side of the transverse operating rod 11. The adjustment key 12 is a press-type setting. When pressed, it means that the telescopic rod 10 is released from the position. At this time, the user pushes the transverse operating rod 11 to drive the telescopic rod 10 to extend and retract accordingly. After the adjustment is completed, the adjustment key 12 is no longer pressed to restore the position of the telescopic rod 10, and the height of the adjusted telescopic rod 10 is fixed, which cooperates with the user's two hands to support.

[0062] In addition to the adjustment key 12, the left and right sides of the horizontal operating rod 11 are also rotatably provided with a reversing key 13 for adjusting the travel direction of the suitcase. The reversing key 13 is divided into a front key and a rear key. As the name implies, the front key indicates that the suitcase moves forward, and the rear key indicates that the suitcase moves backward. Among them, the front side of the bottom of the shell 161 is rotatably provided with a main wheel through the hinge groove 6, and the top of the hinge groove 6 passes through the shell 161 and is upwardly connected to a connecting shaft 7, which is connected to the bottom end of the telescopic rod 10. That is, the user can drive the telescopic rod 10 to rotate by pushing the left and right sides of the horizontal operating rod 11. The rotation of the telescopic rod 10 can drive the connecting shaft 7, the hinge groove 6, and the main wheel to swing, so as to realize the left and right reversal of the suitcase. In combination with the front key and the rear key, the all-round control of the suitcase is realized.

[0063] Taking into account the different shoulder widths of different groups of people, for example, there is a large difference in shoulder width between women and men. When the length of the horizontal operating rod 11 is fixed, the user can only support the outermost end of the horizontal operating rod 11 at most. For some people with larger shoulder widths, the width of the horizontal operating rod 11 is shorter than the width of their shoulders, and the shoulders are forced to gather together, which not only leads to a poor user experience, but also makes it impossible to achieve balance between the hands and the suitcase, causing the whole person to lose balance and fall. Therefore, an extension rod 39 with adjustable length is provided to adapt to the optimal driving shoulder width of different groups of people and maintain a sense of balance; a clamping rod 37 is extended outward on both the left and right sides of the lateral operating rod 11, and a plurality of clamping holes 38 are opened on the rear side. An extension rod 39 is slidably provided on the clamping rod 37 for direct contact and support with the human hand. The extension rod 39 is hollow and closed on the outside, and a clamping bead 41 is connected to the extension rod 39 through a second elastic member 40. The clamping bead 41 cooperates with the clamping hole 38. When the clamping bead 41 is located in the clamping hole 38, it means that the extension rod 39 is fixed and limited on the clamping rod 37, and its length needs to be adjusted. When adjusting, the extension rod 39 is rotated up and down until the bead 41 disengages from the hole 38 and rests between the outer wall of the rod 37 and the inner wall of the extension rod 39. The second elastic member 40 is compressed. At this time, the extension rod 39 is no longer fixed and can be pushed to move left or right to an appropriate position. Then the extension rod 39 is rotated again until the bead 41 moves in front of the hole 38 again. At this time, the second elastic member 40 is reset and drives the bead 41 to move backward, restoring the fixed limit of the extension rod 39. From then on, the length adjustment of the extension rod 39 is completed to adapt to the optimal driving shoulder width of different people and prevent them from losing their sense of balance and falling.

[0064] Example 5

[0065] like Figures 1 to 15 The electric luggage shown in the figure further enhances the anti-falling performance of the electric luggage during driving, and is also provided with an expandable rear wheel set, which is divided into a first sub-wheel 17 and a second sub-wheel 18, and the first sub-wheel 17 and the second sub-wheel 18 are both located at the rear side of the bottom of the electric luggage. It is known that when an object is subjected to external force, if its center of gravity is lower and the bottom area is larger, it will be more stable and not easy to fall. When an adult is carried on the top of the electric luggage, the adult's own weight will drive its center of gravity to drop, but it still cannot guarantee that it will not fall during driving. Before the electric luggage is driven, the first sub-wheel 17 and the second sub-wheel 18 are moved outward to expand the distance between them, so that the bottom area of ​​the electric luggage can be increased; at the same time, the distance between the first sub-wheel 17, the second sub-wheel 18 and the luggage is shortened, and the rear end of the electric luggage is tilted backward, so that the actual center of gravity of the electric luggage can be lowered, thereby increasing stability and preventing the occurrence of falling.

[0066] An adjustment slot 14 is recessed at the rear side of the bottom of the box body 1 to isolate the adjustment of the rear wheel set to prevent it from affecting the items stored inside the suitcase; a first driving member 15 is provided at the top of the adjustment slot 14, and the first driving member 15 is specifically a cylinder. An adjustment member 16 is connected to the bottom of the telescopic rod 10 of the cylinder. It is easy to know that the rear wheel set is located in the adjustment member 16. When the user does not need to drive the suitcase, the user adjusts the suitcase to "non-passenger mode" on the mobile phone app. After receiving the signal, the control module will drive the first driving member 15 to start, drive the adjustment member 16 to move up and down, and move the rear wheel set The lowest point of the luggage is adjusted to be on the same horizontal line as the lowest point of the main wheel, so as to cooperate with the normal use of the luggage case by the user; when the user needs to drive the luggage case, the luggage case can be adjusted to the "passenger mode", and the control module will drive the cylinder to start after receiving the signal, and drive the adjustment member 16 to move upward, that is, shorten the distance between the adjustment member 16 and the rear wheel group and the luggage case, and drive the rear side of the luggage case, that is, the side where the buttocks touch the luggage case, to tilt downward. After the user sits down, the user can rely on his own gravity to drive the entire center of gravity of the luggage case to tilt downward, so as to prevent the luggage case from tipping over at will.

[0067] Example 6

[0068] like Figures 1 to 15 An electric suitcase shown in the figure includes an adjusting member 16, which includes a shell 161. The top and rear edges of the shell 161 are similar to the outer edge of the suitcase. An operating panel 162 is provided on the rear side of the inner wall of the shell 161. The operating panel 162 extends forward and protrudes from the shell 161. The front edge of the operating panel 162 is the same as the inner wall of the adjusting slot 14. When the telescopic rod 10 of the first driving member 15 is shortened, the adjusting member 16 can be driven to be completely retracted into the adjusting slot 14, thereby indirectly achieving the lowering of the center of gravity. Guide rails 163 are symmetrically arranged on the top of the operating panel 162, and sliding members 164 are slidably arranged on the guide rails 163. The outer side of the sliding member 164 is expanded outward to form a blocking tendency, and the inner side of the sliding member 164 is provided with a secondary rail 165, and the secondary rail 165 is connected with a stop block 167 through a slider 166, and the stop block 167 is L-shaped; support members 168 are arranged on the outer side of the stop block 167, and the support members 168 are also L-shaped, and the parts of the support members 168 located below the operating panel 162 can be interlocked with each other, that is, in a normal state, the support members 168 will just rest on the left and right sides of the operating panel 162, and drive the support members 168 at the lower part thereof to be interlocked with each other, so that the two support members 168 form a concave shape, and through the impact of the two, the first secondary wheel 17 and the second secondary wheel 18 in the adjusting member 16 are fixed, so that they are kept at the same horizontal line with the lowest point of the main wheel, so as to cooperate with the normal movement of the user in the "non-passenger mode".

[0069] Next, a mounting frame 23 is provided at the bottom of the housing 161, and the material is hard titanium. A fixed sleeve 24 is installed at the bottom of the mounting frame 23. The fixed sleeve 24 is hollow, and the first shaft 25 and the second shaft 26 are symmetrically slidably installed on the left and right. The outer sides of the first shaft 25 and the second shaft 26 are rotatably provided with a first sub-wheel 17 and a second sub-wheel 18 through a retaining ring 27, and then, it is only necessary to set a retaining sleeve 28 at the bottom of the support member 168, and clamp the two retaining sleeves 28 between the first sub-wheel 17, the second sub-wheel 18 and the retaining ring 27 respectively, so that when the support member 168 is driven to move outward, the retaining sleeve 28 can resist the force of the retaining ring 27, so as to drive the first shaft 25 and the second shaft 26 to move outward, thereby achieving the effect of moving the first sub-wheel 17 and the second sub-wheel 18 outward, completing the distance expansion of the first sub-wheel 17 and the second sub-wheel 18, and increasing stability.

[0070] Considering that the middle part of the first shaft 25 and the second shaft 26 is hollow after sliding out of the fixed sleeve 24, the first auxiliary wheel 17 and the second auxiliary wheel 18 below cannot be ensured to move stably, an auxiliary support member 21 is also provided to indirectly achieve the reinforcement and stability of the first shaft 25 and the second shaft 26 by resisting the moving support member 168. Auxiliary guide rails 19 are symmetrically arranged at the bottom of the operating panel 162, and auxiliary support members 21 are slidably arranged between the auxiliary guide rails 19 through auxiliary sliders 20, wherein the shape of the auxiliary support member 21 is wavy, which can adapt to the missing parts of the two support members 168, that is, after the auxiliary guide rail 19 moves backward between the support members 168, it can achieve the hedging of the two support members 168, so that the support member 168 still presents a regular square, and indirectly achieves the fixation of the first shaft 25 and the second shaft 26.

[0071] A second driving member 29 is provided on the top of the operating panel 162. The second driving member 29 is specifically a micro cylinder. The push rod of the second driving member 29 is connected to the inner stop block 167, which is a power source for adjusting the first auxiliary wheel 17 and the second auxiliary wheel 18. The auxiliary guide rails 19 are respectively connected to the adjacent support members 168 with rocker arms 22 for synchronizing the movement between the support members 168.

[0072] It is understood that: when the user is in the "non-passenger mode", the telescopic rod 10 of the cylinder is in a stretched state, driving the adjustment member 16 and the first and second auxiliary wheels 17 and 18 at the bottom thereof to maintain a horizontal state, that is, to maintain the same horizontal line as the lowest point of the main wheels, driving the entire suitcase to maintain a balanced state, and cooperating with the user's various movements or transportation of the suitcase; and when the user needs to drive the suitcase, the user does not need to sit on the suitcase, and the "passenger mode" is activated. The control panel receives a signal to first drive the second driving member 29 to operate, and the push rod of the second driving member 29 extends to drive the sliding member 164 to move outward first. When the sliding member 164 moves to the limit, the push rod continues to extend and then drives the support member 168 to move backward , while the support member 168 moves backward, the auxiliary support member 21 is driven to move rightward through the rocker bar 22. While the auxiliary support frame moves rightward, the front support member 168 is driven to move outward synchronously through the rocker bar 22. After the auxiliary support member 21 moves to a position higher than the support member 168, the push rod is started to shorten, driving the support member 168 to move inward while the auxiliary support member 21 is driven backward and reset through the rocker bar 22 until the three are engaged. At this time, the support member 168 is in a state of moving outward relative to the initial state, and then the first shaft 25 and the second shaft 26 are driven to move outward through the sleeve 28, thereby finally achieving the effect of moving the first sub-wheel 17 and the second sub-wheel 18 outward respectively, thereby increasing the distance between the two.

[0073] In this way, after the adjustment member 16 moves upward, the entire luggage box can be driven to show a tendency to tilt backward. Considering that after the electric luggage box carries an adult, the luggage box will be under pressure and its center of gravity will be lower than the horizontal state, and the distance between the first auxiliary wheel 17 and the second auxiliary wheel 18 will be expanded. Together with the main wheels, the bottom area of ​​the luggage box will be calculated by the formula: area = 1 / 2 (bottom * height), so that the electric luggage box will become more stable during driving and not easy to tip over.

[0074] Example 7

[0075] like Figures 1 to 15 The electric suitcase shown in the figure also includes a controller, which is installed on the mobile terminal. The controller is connected to the adjustment key 12, the reversing key 13, the battery 36, the first driving member 15 and the second driving member 29 respectively. The adjustment member 16 is used to adjust the movement and stop of the electric suitcase, the reversing key 13 is used to adjust the travel direction of the electric suitcase, and the battery 36 is used to power various components. The controller can be installed on the mobile terminal (mobile phone app) to facilitate the user to issue instructions. The controller and the various components are connected by Bluetooth to receive instructions issued by the user or adjustment data manually made by the user to the adjustment key 12 and the reversing key 13, and perform corresponding operations on each driving member.

[0076] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0077] The above description is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. An electric luggage case, comprising a case body, a left frame connected to the left side of the case body, the left frame extending backward to form a first expansion area, a plurality of second expansion areas are provided on the right side of the case body, a pull-up groove is provided in the top of the rear side of the case body, a pull-up handle is provided in the pull-up groove, a main wheel is provided on the front side of the bottom of the shell for rotation through a hinge groove, the hinge groove passes through the shell and is upwardly connected to a connecting shaft, characterized in that: A slide groove is provided on the front side of the box body, a slide cylinder is installed downward in the slide groove, a telescopic rod is slidably provided in the slide cylinder, a transverse operating rod is provided on the top of the telescopic rod, an adjustment key is provided on the middle side of the top of the transverse operating rod, and reversing keys are rotatably provided on the left and right sides of the transverse operating rod, an adjustment groove is recessed on the rear side of the bottom of the box body, a first driving member is provided on the top of the adjustment groove, an adjusting member is connected to the bottom of the telescopic rod of the first driving member, and a first sub-wheel and a second sub-wheel are rotatably provided in the adjusting member.

2. The electric luggage case according to claim 1, characterized in that: The adjusting member comprises a shell, an operating panel is arranged on the rear side of the inner wall of the shell, guide rails are symmetrically arranged on the top of the operating panel, a sliding member is slidably arranged on the guide rail, a secondary rail is arranged on the inner side of the sliding member, a stop block is connected to the secondary rail via a slider, and a supporting member is arranged on the outer side of the stop block.

3. The electric luggage case according to claim 2, characterized in that: The stop block and the support member are both L-shaped, and the two support members are interlocked with each other.

4. The electric luggage case according to claim 3, characterized in that: Auxiliary guide rails are symmetrically arranged at the bottom of the operation panel, and auxiliary support members are slidably arranged between the auxiliary guide rails via auxiliary sliders. A swing rod is connected between the auxiliary guide rails and the adjacent support members.

5. The electric luggage case according to claim 2, characterized in that: A mounting frame is provided at the bottom of the shell, and a fixed sleeve is installed at the bottom of the mounting frame. The fixed sleeve is connected to the first and second auxiliary wheels by slidingly installing the first and second shafts on the left and right. A retaining ring is provided on the outer side of the first and second shafts, and a retaining sleeve is provided at the bottom of the support member, and the retaining sleeve is located between the first and second auxiliary wheels and the retaining ring.

6. The electric luggage case according to claim 2, characterized in that: A second driving member is provided on the top of the operating panel, and the second driving member is connected to the sliding member.

7. The electric luggage case according to claim 1, characterized in that: The bottom of the first expansion area is recessed inward to provide a first recovery groove, and the right side of the front frame is provided with a second recovery groove below the second expansion area. A foot pedal is rotatably connected between the inner walls of the first expansion area and the second expansion area, and a first elastic member is connected between the foot pedal and the first recovery groove and the second recovery groove.

8. The electric luggage case according to claim 1, characterized in that: The pulling groove is extended downward to be provided with a withdrawal slot, and the left and right inner walls of the withdrawal slot are both provided with limit blocks, and a battery is slidably installed in the pulling groove.

9. The electric luggage case according to claim 1, characterized in that: The left and right sides of the horizontal operating rod are both extended outwards with a clamping rod, the front side of the clamping rod is provided with a plurality of clamping holes, an extension rod is slidably provided on the clamping rod, and the inner rear side of the extension rod is connected with a clamping bead through a second elastic member.

10. An electric luggage case according to claims 1-9, characterized in that: The device also includes a controller which is installed on the mobile terminal and is connected to the adjustment key, the direction-changing key, the battery, the first driving member and the second driving member respectively.

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