Smart electric suitcase and electric steering device

Abstract

The present application falls within the field of luggage. Disclosed is a smart electric suitcase, comprising a rideable suitcase body and a handlebar mounted on the suitcase body, wherein the handlebar comprises a fixing rod and a lifting rod, the lifting rod is slidably mounted on the upper part of the fixing rod and can slide along the lengthwise direction of the fixing rod, a drive motor is provided inside the fixing rod, a lead screw is provided at an output end of the drive motor, the lead screw is in threaded connection with the lifting rod, and the lifting rod ascends and descends relative to the fixing rod around the threaded direction. In the smart electric suitcase provided in the present application, the drive motor is arranged inside the fixing rod, so that the electric extension and retraction of the handlebar is achieved by means of the threaded connection between the lead screw and the lifting rod, thereby achieving a simple and compact structure design and greatly improving the convenience of use.

Description

Intelligent electric travel suitcase and electric steering device

[0001] Cross-reference to Related Applications

[0002] The present application claims priority to the Chinese Patent Application No. 202410740391.4, filed on June 8, 2024, and entitled "Intelligent Electric Travel Suitcase", the Chinese Patent Application No. 202410966903.9, filed on July 18, 2024, and entitled "Electric Steering Device and Intelligent Electric Travel Suitcase", and the Chinese Patent Application No. 202410967327.X, filed on July 18, 2024, and entitled "Electric Steering Device and Intelligent Electric Travel Suitcase", all of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0003] The present application relates to the field of suitcases, and in particular to an intelligent electric travel suitcase, an electric steering device and an intelligent electric travel suitcase. BACKGROUND

[0004] A suitcase, also known as a luggage case or a trolley case, is a box used to carry items when going out, such as clothes and daily necessities needed on a journey. An electric travel suitcase is an improved traditional suitcase that can be ridden to reduce the burden of carrying the suitcase. However, the inventors have found in the course of the present application that the steering handle of the existing electric travel suitcase adopts a manual lifting mode, which requires the user to frequently manually lift the handle during use, which is very inconvenient. SUMMARY

[0005] According to a first aspect of the present application, an intelligent electric travel suitcase is provided to solve the problems raised in the background.

[0006] An intelligent electric travel suitcase includes a rideable suitcase body and a handlebar rod installed on the suitcase body. The handlebar rod includes a fixed rod and a lifting rod. The lifting rod is slidingly installed on the upper part of the fixed rod and can slide along the length direction of the fixed rod. The fixed rod is internally provided with a driving motor. The output end of the driving motor is provided with a lead screw. The lead screw is threadedly connected with the lifting rod. The lifting rod is lifted up and down relative to the fixed rod around the thread direction.

[0007] Optionally, the outer periphery of the lead screw is provided with an external thread. The bottom of the lifting rod is provided with a rotating connecting block. The rotating connecting block is internally provided with an internal thread matched with the external thread. The lead screw is inserted into the rotating connecting block to achieve thread connection with the lifting rod.

[0008] Optionally, the fixed rod is internally provided with a motor mounting seat, and the driving motor is fixedly installed on the motor mounting seat.

[0009] Optionally, the inner side wall of the fixed rod is provided with a limiting convex rib, the outer side wall of the lifting rod is provided with a limiting groove matched with the limiting convex rib, and the lifting rod is inserted into the limiting groove to realize relative sliding with respect to the fixed rod.

[0010] Optionally, the lifting rod is internally provided with a partition plate, the partition plate divides the inside of the lifting rod into a first cavity and a second cavity, the lead screw is inserted into the first cavity and threadedly connected with the lifting rod, and the second cavity is internally provided with a signal connecting line.

[0011] Optionally, the smart electric travel suitcase further comprises a sliding rail fixedly arranged in the box body, an extension rod installed on the sliding rail and capable of sliding along the sliding rail to protrude out of the box body, and an electric push rod for driving the extension rod to slide, and the front end of the extension rod is rotationally connected with the fixed rod.

[0012] Optionally, the bottom of the fixed rod is connected with a front wheel, and the front wheel is a wheel hub motor wheel.

[0013] Optionally, the rear part of the box body is provided with a battery and a battery slot, and the battery is detachably installed in the battery slot.

[0014] According to the second aspect of the present application, an electric steering device and a smart electric travel suitcase are provided to solve the problems in the background art.

[0015] An electric steering device comprises a first pipe body, a second pipe body arranged in the first pipe body and capable of sliding with respect to the first pipe body, and an electric driving device arranged in the first pipe body and connected with the second pipe body to drive the second pipe body to slide with respect to the first pipe body.

[0016] Optionally, the electric driving device is a first electric telescopic push rod.

[0017] Optionally, the bottom of the first pipe body is connected with a wheel through a yoke, the upper part of the yoke is provided with a vertical pipe, the vertical pipe is inserted into the inside of the first pipe body and fixedly connected with the first pipe body, one end of the first electric telescopic push rod is inserted into the vertical pipe and connected with the yoke, and the other end is connected with the second pipe body.

[0018] Optionally, the second pipe body is internally provided with a first cavity and a second cavity, the first pipe body is internally provided with a third cavity matched with the first cavity and a fourth cavity matched with the second cavity, the electric driving device is arranged in the third cavity and inserted into the first cavity to be connected with the second pipe body.

[0019] Optionally, the second pipe body upper portion is provided with a steering handle, and a running control part is mounted on the steering handle, and an external signal line of the running control part is arranged in the second cavity and the fourth cavity.

[0020] An intelligent electric travel suitcase includes a rideable suitcase body and the electric steering device.

[0021] Optionally, the suitcase body includes a controller, a sliding rail fixed to the inside of the suitcase body, and an extension rod mounted on the sliding rail and capable of sliding along the sliding rail to protrude out of the suitcase body, wherein the extension rod is in threaded connection with the first pipe body, and the extension rod is a hollow tubular structure and is in communication with the first pipe body.

[0022] Optionally, the inside of the suitcase body is provided with a second electric telescopic push rod, one end of the second electric telescopic push rod is fixed to the suitcase body, and the other end is connected with the extension rod, and the extension rod is driven by the second electric telescopic push rod to realize electric telescopic extension.

[0023] Optionally, the rear portion of the suitcase body is provided with a battery and a battery slot, and the battery is detachably mounted in the battery slot.

[0024] According to a third aspect of the present application, an electric steering device and an intelligent electric travel suitcase are provided to solve the problems in the background art.

[0025] An electric steering device includes a fixed rod and a lifting rod, the lifting rod is slidingly mounted on the upper portion of the fixed rod and is capable of sliding along the length direction of the fixed rod, the inside of the fixed rod is provided with a driving motor, the output end of the driving motor is provided with a lead screw, the lead screw is in threaded connection with the lifting rod, and the lifting rod is raised and lowered relative to the fixed rod in the up-down direction around the threaded direction.

[0026] Optionally, the outer periphery of the lead screw is provided with an external thread, the bottom of the lifting rod is provided with a threaded connecting block, the threaded connecting block is internally provided with an internal thread matched with the external thread, and the lead screw is inserted into the threaded connecting block to realize threaded connection with the lifting rod.

[0027] Optionally, the inner side wall of the fixed rod is provided with a limiting protruding rib, the outer side wall of the lifting rod is provided with a limiting groove matched with the limiting protruding rib, and the lifting rod is inserted into the limiting groove through the limiting protruding rib to realize sliding relative to the fixed rod.

[0028] Optionally, the inside of the lifting rod is provided with a partition plate, the partition plate divides the inside of the lifting rod into a first cavity and a second cavity, the lead screw is inserted into the first cavity to realize threaded connection with the lifting rod, and the second cavity is provided with a signal connecting line.

[0029] Optionally, the upper part of the lifting rod is provided with a handle assembly, the handle assembly comprises a fixed part, two handle rods symmetrically installed at the two ends of the fixed part, two connecting rods, a first connecting rod and a second connecting rod, a connecting rod installation cavity is formed in the inside of the lead screw, a connecting rod installation sleeve in rotation connection with the lead screw is arranged in the connecting rod installation cavity, a first rack vertically arranged is arranged in the inside of the upper end of the connecting rod installation sleeve, the upper end of the first connecting rod is fixedly installed on the fixed part, the lower end is inserted into the connecting rod installation sleeve and is provided with a guide gear, one end of each of the two connecting rods is in rotation connection with the two handle rods, the other end is in rotation connection with the upper end of the second connecting rod, the lower end of the second connecting rod is inserted into the connecting rod installation sleeve and is provided with a second rack vertically arranged, and the guide gear is in meshing connection with the second rack.

[0030] Optionally, the upper part of the lifting rod is provided with a handle assembly, the handle assembly comprises a fixed part, two handle rods symmetrically installed at the two ends of the fixed part, two connecting rods, a first connecting rod and a second connecting rod, a connecting rod installation cavity is formed in the inside of the lead screw, a connecting rod installation sleeve in rotation connection with the lead screw is arranged in the connecting rod installation cavity, a first rack vertically arranged is arranged in the inside of the upper end of the connecting rod installation sleeve, the upper end of the first connecting rod is fixedly installed on the fixed part, the lower end is inserted into the connecting rod installation sleeve and is provided with a guide gear, one end of each of the two connecting rods is in rotation connection with the two handle rods, the other end is in rotation connection with the upper end of the second connecting rod, the lower end of the second connecting rod is inserted into the connecting rod installation sleeve and is provided with a second rack vertically arranged, and the guide gear is in meshing connection with the second rack.

[0031] An intelligent electric travel suitcase, comprising a rideable suitcase body and the above-mentioned steering device.

[0032] Optionally, the suitcase body comprises a controller, a sliding rail fixed in the inside of the suitcase body, and an extension rod installed on the sliding rail and capable of sliding along the sliding rail to protrude out of the suitcase body, wherein the extension rod is in rotation connection with the fixed rod.

[0033] According to the technical scheme of the present application, the following technical effects are achieved:

[0034] 1. The intelligent electric travel suitcase provided by the present application is provided with a driving motor in the inside of the fixed rod, and the electric telescopic handle rod is realized by the threaded connection of the lead screw and the lifting rod, so that the structure design is simple and compact, and the use convenience is greatly improved.

[0035] 2. The electric steering device and the intelligent electric travel suitcase provided by the present application are provided with an electric driving device in the inside of the second pipe body, and the electric lifting is realized by the electric driving device, so that the use convenience is improved.

[0036] 3. The electric steering device and the intelligent electric travel suitcase provided by the present application are provided with a driving motor in the inside of the fixed rod, and the electric telescopic handle rod is realized by the threaded connection of the lead screw and the lifting rod, so that the structure design is simple and compact, and the use convenience is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0037] Fig. 1 is a front perspective view of a smart luggage provided by the present application;

[0038] Fig. 2 is a rear perspective view of a smart luggage provided by the present application;

[0039] Fig. 3 is a side view of a handle rod in a smart luggage provided by the present application;

[0040] Fig. 4 is a front view of a fixing rod in a smart luggage provided by the present application;

[0041] Fig. 5 is a perspective view of a fixing rod in a smart luggage provided by the present application;

[0042] Fig. 6 is a perspective view of a driving motor and a lead screw in a smart luggage provided by the present application;

[0043] Fig. 7 is a bottom view of a lifting rod in a smart luggage provided by the present application;

[0044] Fig. 8 is a perspective view of a rotating connecting block in a smart luggage provided by the present application;

[0045] Fig. 9 is a perspective view of a lifting rod in a smart luggage provided by the present application;

[0046] Fig. 10 is a schematic view of an internal structure of a smart luggage provided by the present application;

[0047] Fig. 11 is a perspective view of a box body in a smart luggage provided by the present application;

[0048] Fig. 12 is a perspective view of a front baffle in a smart luggage provided by the present application;

[0049] Fig. 13 is a front view of an electric steering device provided by the present application;

[0050] Fig. 14 is a perspective view of an electric steering device provided by the present application;

[0051] Fig. 15 is a perspective view of a wheel fork and a vertical pipe in an electric steering device provided by the present application;

[0052] Fig. 16 is a schematic view of a connection between a first electric telescopic push rod and a wheel in an electric steering device provided by the present application;

[0053] Fig. 17 is an enlarged view of a part D in Fig. 16;

[0054] Fig. 18 is a perspective view of an L-shaped connecting piece in an electric steering device provided by the present application;

[0055] Fig. 19 is a perspective view of a first pipe body in an electric steering device provided by the present application;

[0056] Fig. 20 is a perspective view of the second tube body in the electric steering device provided by the present application;

[0057] Fig. 21 is a schematic view of the connection between the first electric telescopic push rod and the second tube body in the electric steering device provided by the present application;

[0058] Fig. 22 is a schematic view of the smart electric travel suitcase in a riding state provided by the present application;

[0059] Fig. 23 is a rear perspective view of the smart electric travel suitcase provided by the present application;

[0060] Fig. 24 is a schematic view of the internal structure of the smart electric travel suitcase provided by the present application;

[0061] Fig. 25 is a front perspective view of the front baffle in the smart electric travel suitcase provided by the present application;

[0062] Fig. 26 is a rear perspective view of the front baffle in the smart electric travel suitcase provided by the present application;

[0063] Fig. 27 is a schematic view of the opening in the smart electric travel suitcase provided by the present application;

[0064] Fig. 28 is a schematic view of the smart electric travel suitcase in a non-riding state provided by the present application;

[0065] Fig. 29 is a schematic view of the electric steering device provided by the present application;

[0066] Fig. 30 is a schematic view of the connection between the fixed rod and the driving motor in the electric steering device provided by the present application;

[0067] Fig. 31 is a perspective view of the fixed rod in the electric steering device provided by the present application;

[0068] Fig. 32 is a perspective view of the driving motor and the screw rod in the electric steering device provided by the present application;

[0069] Fig. 33 is a perspective view of the lifting rod and the threaded connecting block in the electric steering device provided by the present application;

[0070] Fig. 34 is a perspective view of the threaded connecting block in the electric steering device provided by the present application;

[0071] Fig. 35 is a perspective view of the lifting rod in the electric steering device provided by the present application;

[0072] Fig. 36 is a schematic view of the first embodiment of the electric folding of the handle assembly in the electric steering device provided by the present application;

[0073] Fig. 37 is a perspective view of the driving motor and the screw rod in the first embodiment of the electric folding of the handle assembly;

[0074] Figure 38 is a bottom perspective view of the connecting rod mounting sleeve in the first embodiment of the electric folding handle assembly;

[0075] Figure 39 is a top perspective view of the connecting rod mounting sleeve in the first embodiment of the electric folding handle assembly;

[0076] Figure 40 is a schematic view of the handle assembly in the first embodiment of the electric folding handle assembly;

[0077] Figure 41 is a schematic view of the connection between the connecting rod and the handle rod in the first embodiment of the electric folding handle assembly;

[0078] Figure 42 is a schematic view of the positions of the first connecting member and the second connecting member in the first embodiment of the electric folding handle assembly;

[0079] Figure 43 is an enlarged view of portion A in Figure 42;

[0080] Figure 44 is a perspective view of the first connecting member in the first embodiment of the electric folding handle assembly;

[0081] Figure 45 is an enlarged view of portion B in Figure 44;

[0082] Figure 46 is a schematic view of the connection between the second connecting member and the connecting rod in the first embodiment of the electric folding handle assembly;

[0083] Figure 47 is an enlarged view of portion C in Figure 46;

[0084] Figure 48 is a schematic view of the connection between the handle rod, the fixing member and the connecting rod in the first embodiment of the electric folding handle assembly;

[0085] Figure 49 is a schematic view of the connection between the handle rod and the connecting rod in the first embodiment of the electric folding handle assembly;

[0086] Figure 50 is a schematic view of the folded state of the handle rod in the first embodiment of the electric folding handle assembly;

[0087] Figure 51 is a schematic view of the second embodiment of the electric folding handle assembly in the electric steering device provided by the present application;

[0088] Figure 52 is a perspective view of the drive motor and the lead screw in the second embodiment of the electric folding handle assembly;

[0089] Figure 53 is a schematic view of the connection between the rotating connecting rod and the handle rod in the second embodiment of the electric folding handle assembly;

[0090] Figure 54 is a perspective view of the connection between the rotating connecting rod and the handle rod in the second embodiment of the electric folding handle assembly;

[0091] Figure 55 is a schematic diagram of the connection between the rotating connecting rod and the handle assembly in the second embodiment of the electric folding handle assembly;

[0092] Figure 56 is a schematic diagram of the connection between the rotating connecting rod, the combined spur gear and the first helical gear in the second embodiment of the electric folding handle assembly;

[0093] Figure 57 is a schematic diagram of the connection between the first helical gear, the second helical gear and the third helical gear in the second embodiment of the electric folding handle assembly;

[0094] Figure 58 is a schematic diagram of the connection between the handle rod and the third helical gear in the second embodiment of the electric folding handle assembly;

[0095] Figure 59 is a perspective view of the handle rod in the second embodiment of the electric folding handle assembly;

[0096] Figure 60 is a schematic diagram of the folded state of the handle rod in the second embodiment of the electric folding handle assembly;

[0097] Figure 61 is a side view of the smart electric travel suitcase provided by the present application;

[0098] Figure 62 is a rear perspective view of the smart electric travel suitcase provided by the present application;

[0099] Figure 63 is a schematic diagram of the internal structure of the smart electric travel suitcase provided by the present application;

[0100] Figure 64 is a front perspective view of the front baffle in the smart electric travel suitcase provided by the present application;

[0101] Figure 65 is a rear perspective view of the front baffle in the smart electric travel suitcase provided by the present application;

[0102] Figure 66 is a schematic diagram of the position of the opening in the smart electric travel suitcase provided by the present application;

[0103] Figure 67 is a schematic diagram of the smart electric travel suitcase in a non-riding state provided by the present application.

[0104] Wherein: 10 - box, 101 - rear wheel, 102 - battery, 103 - controller, 104 - slide rail, 105 - telescopic rod, 106 - electric push rod, 107 - battery slot, 108 - opening, 109 - front baffle, 110 - jack, 111 - groove, 20 - handle bar, 201 - front wheel, 202 - fixed rod, 203 - lifting rod, 204 - handle, 205 - drive motor, 206 - lead screw, 207 - rotating connecting block, 208 - motor mounting seat, 209 - limiting convex rib, 210 - limiting groove, 211 - partition, 212 - first cavity, 213 - second cavity, 214 - signal connecting line, 215 - control component, 216 - speed regulating handle, 217 - brake handle, 218 - footrest, 219 - rear pull rod; 100 - first pipe body, 1010 - tensioning groove, 1020 - third cavity, 1030 - fourth cavity, 200 - second pipe body, 2010 - first electric telescopic push rod, 2020 - first cavity, 2030 - second cavity, 2040 - steering handle, 2050 - operation control part, 2060 - speed regulating handle, 2070 - brake handle, 30 - fork, 301 - wheel, 302 - vertical pipe, 303 - L-shaped connecting piece, 304 - wire outlet hole, 40 - box, 401 - rear wheel, 402 - controller, 403 - slide rail, 404 - telescopic rod, 405 - second electric telescopic push rod, 406 - opening, 407 - front baffle, 408 - jack, 409 - groove, 410 - battery, 411 - battery slot, 412 - rear pull rod, 413 - power switch, 414 - control switch;1000-fixed rod, 10100-driving motor, 10200-screw rod, 10300-motor mounting seat, 10400-limiting convex rib, 2000-lifting rod, 20100-threaded connecting block, 20200-limiting groove, 20300-baffle, 20400-first cavity, 20500-second cavity, 20600-signal connecting line, 300-wheel, 400-handle assembly, 4010-fixing piece, 4020-handle rod, 4030-connecting rod, 4040-first connecting piece, 4050-second connecting piece, 4060-connecting rod mounting cavity, 4070-connecting rod mounting sleeve, 4080-rotating bearing, 4090-first rack, 4100-guiding gear, 4110-second rack, 4120-rotating connecting piece, 4130-rotating connecting block, 4140-shaft hole, 415-pivot, 416-rotating groove, 417-first avoiding part, 418-second avoiding part, 419-rotating connecting rod, 420-connecting rod sliding cavity, 421-first helical gear, 422-second helical gear, 423-third helical gear, 424-gear groove, 425-first spur gear, 426-second spur gear, 427-combined spur gear, 428-upper spur gear, 429-lower spur gear, 50-box body, 501-rear wheel, 502-controller, 503-sliding rail, 504-telescopic rod, 505-electric telescopic push rod, 506-opening, 507-front baffle, 508-socket, 509-groove, 510-battery, 511-battery socket, 512-rear pull rod, 513-power switch, 514-control switch. DETAILED DESCRIPTION

[0105] The specific embodiments of the present application will be described in detail below with reference to the drawings, but the scope of protection of the present application is not limited thereto. The terms "front", "rear", "left", "right", "upper", "lower" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. The terms "first", "second" are only used to simplify the literal description to distinguish similar objects, and cannot be understood as the prior and posterior relationship between the specific order.

[0106] Referring to FIG. 1 to FIG. 6, the application provides a kind of intelligent electric travel suitcase, including the box 10 that can be ridden, handlebar 20 is installed in box 10, rear wheel 101 is installed in the bottom rear side of box 10, front wheel 201 is installed in the bottom of handlebar 20, front wheel 201 adopts wheel hub motor wheel, for driving box 10 to move.Handlebar 20 includes fixed rod 202 and lifting rod 203, lifting rod 203 is slidably installed on the upper portion of fixed rod 202 and can slide along the length direction of fixed rod 202, the upper portion of lifting rod 203 is installed with handle 204, driving motor 205 is arranged in fixed rod 202, the output end of driving motor 205 is provided with screw rod 206, screw rod 206 is threadedly connected with lifting rod 203, when driving motor 205 is started, its output end drives screw rod 206 to rotate, since the body of driving motor 205 is fixed, when screw rod 206 rotates, lifting rod 203 threadedly connected with screw rod 206 is then raised up and down around the thread direction, to realize the electric lifting of handlebar 20.

[0107] Referring to FIG. 6 to FIG. 8, the outer periphery of screw rod 206 is provided with external thread, the bottom of lifting rod 203 is provided with rotating connecting block 207, rotating connecting block 207 is fixedly connected with lifting rod 203, rotating connecting block 207 is provided with internal thread matched with external thread in it, screw rod 206 is inserted into rotating connecting block 207 to realize thread connection with lifting rod 203.

[0108] Referring to FIG. 5, FIG. 6 and FIG. 9, the inside of fixed rod 202 is provided with motor mounting seat 208, driving motor 205 is fixedly installed in motor mounting seat 208;The inner side wall of fixed rod 202 is provided with limiting convex rib 209, the outer side wall of lifting rod 203 is provided with limiting groove 210 matched with limiting convex rib 209, lifting rod 203 is inserted into limiting groove 210 to realize sliding relative to fixed rod 202 by limiting convex rib 209, the cooperation of limiting convex rib 209 and limiting groove 210 not only provides sliding guide for the sliding of lifting rod 203, but also provides steering limiting for lifting rod 203 and fixed rod 202, so that lifting rod 203 can drive fixed rod 202 to turn left and right synchronously when turning left and right, to further drive front wheel 201 to turn.

[0109] Referring to FIG. 7 and FIG. 9, the inside of lifting rod 203 is provided with partition plate 211, partition plate 211 divides the inside of lifting rod 203 into first cavity 212 and second cavity 213, screw rod 206 is inserted into first cavity 212 to be threadedly connected with lifting rod 203, signal connecting line 214 is arranged in second cavity 213, by arranging partition plate 211, screw rod 206 can be separated from signal connecting line 214, to avoid interference or winding of signal connecting line 214 in the process of screw rod 206 rotating.

[0110] Referring to FIG. 2, FIG. 10 to FIG. 12, the smart electric suitcase provided by the application further comprises a battery 102, a controller 103, a slide rail 104 fixed in the box body, an extension rod 105 installed on the slide rail 104 and capable of sliding along the slide rail 104 to protrude out of the box body 10, an electric push rod 106 for driving the extension rod 105 to slide, and the front end of the extension rod 105 is rotationally connected with the fixed rod 202. The rear part of the box body 10 is provided with a battery slot 107, and the battery 102 is detachably installed in the battery slot 107.

[0111] The upper part of the lifting rod 203 is provided with a handle 204, and the handle 204 is provided with a control component 215 for controlling the wheel hub motor wheel to move forward or backward. The control component 215 comprises a speed regulating handle 216 and a brake handle 217, both of which can be circumferentially rotated. The speed regulating handle 216 and the brake handle 217 are both provided with a force applying member for pressing or pushing by a large thumb. The speed regulating handle 216 and the brake handle 217 are both connected to the controller 103 through a signal connection line 214. When a user controls the control component 215, the speed regulating handle 216 or the brake handle 217 can be circumferentially rotated by pressing the force applying member with a corresponding large thumb, so as to realize the speed regulation and electronic brake of the electric suitcase. The speed regulator of the speed regulating handle 216 is a potentiometer or a Hall sensor.

[0112] The front part of the box body 10 is provided with an opening 108, and the opening 108 is installed with a front baffle 109. The upper part of the front baffle 109 is provided with a hole 110 for the extension rod 105 to pass through, and the lower part of the front baffle 109 is provided with a groove 111 matched with the front wheel 201. When the extension rod 105 is in a retracted state, the front wheel 201 is located in the groove 111. The slide rail 104 is arranged at the hole 110 and is integrally formed with the front baffle 109. When the extension rod 105 passes through the hole 110, it is simultaneously inserted into the slide rail 104. One end of the electric push rod 106 is connected and fixed with the inside of the box body 10, and the other end is connected and fixed with the extension rod 105, for providing power for the sliding of the extension rod 105.

[0113] The front wheel 201 is provided with a footrest 218 on both sides, which can provide foot support for the user during riding to improve the riding comfort of the user. The rear part of the box body 10 is provided with a rear pull rod 219, and the user can choose to ride the suitcase or push and pull the suitcase. When the user does not want to ride, the rear pull rod 219 is pulled out, and the suitcase can be pushed and pulled.

[0114] Referring to FIG. 13, the application provides an electric steering device, which comprises a first tube body 100, a second tube body 200 arranged in the first tube body 100 and capable of sliding relative to the first tube body 100, the first tube body 100 and the second tube body 200 are both hollow tubular structures, the inside of the first tube body 100 is provided with an electric drive device, the electric drive device is connected with the second tube body 200 and drives the second tube body 200 to slide relative to the first tube body 100, thereby realizing electric lifting of the steering device.

[0115] Referring to FIGS. 14-18, the electric drive device is a first electric telescopic push rod 2010, which is optionally a pen-type electric telescopic push rod. Since the pen-type electric telescopic push rod has a slender structure, it is more suitable to be installed inside the first tube body 100. The bottom of the first tube body 100 is connected with a wheel 301 through a yoke 30, the wheel 301 is a hub motor wheel for providing a moving power source, the lower part of the yoke 30 is connected with the wheel shafts on the left and right sides of the wheel 301, the upper part of the yoke 30 is provided with a vertical pipe 302, the vertical pipe 302 is a hollow tubular structure and is in communication with the upper surface of the yoke 30, the vertical pipe 302 is inserted into the inside of the first tube body 100 from bottom to top and is fixedly connected with the first tube body 100, specifically, a tension slot 1010 is formed in the side surface of the bottom of the first tube body 100, when the vertical pipe 302 is inserted into the inside of the first tube body 100, the vertical pipe 302 is fixedly connected with the first tube body 100 by clamping the tension slot 1010 through a bolt; one end of the first electric telescopic push rod 2010 is inserted into the vertical pipe 302 and is fixedly connected with the yoke 30, the other end is inserted into the inside of the second tube body 200 and is fixedly connected with the second tube body 200, specifically, an L-shaped connecting piece 303 is arranged between the end of the first electric telescopic push rod 2010 close to the vertical pipe 302 and the yoke 30, the number of the L-shaped connecting pieces 303 is two, the long side part of the L-shaped connecting piece 303 is inserted into the inside of the vertical pipe 302 and is fixedly connected with the end of the first electric telescopic push rod 2010, the fixed connection is a bolt connection, but can also be other connection modes, the short side part of the L-shaped connecting piece 303 is inserted out of the vertical pipe 302 and is fixedly connected with the yoke 30, the fixed connection is also a bolt connection, but can also be other connection modes; the end of the first electric telescopic push rod 2010 close to the second tube body 200 is inserted into the inside of the second tube body 200 and is fixedly connected with the side wall of the second tube body 200 through a bolt.

[0116] Referring to FIGS. 19-21, the second tube 200 is internally provided with a first cavity 2020 and a second cavity 2030, the first tube 100 is internally provided with a third cavity 1020 matched with the first cavity 2020 and a fourth cavity 1030 matched with the second cavity 2030, the first cavity 2020 is inserted into the third cavity 1020, the second cavity 2030 is inserted into the fourth cavity 1030, the electric drive device is arranged in the third cavity 1020 and extends into the first cavity 2020 of the second tube 200 to be fixedly connected with the second tube 200. The second tube 200 is provided at the upper portion with a steering handle 2040 and a running control portion 2050 mounted on the steering handle 2040, the running control portion 2050 is used to control the wheel hub motor vehicle wheel to advance or retreat, the running control portion 2050 includes a speed regulating handle 2060 and a brake handle 2070, both of which can be circumferentially rotated, the speed regulating handle 2060 and the brake handle 2070 are both provided with a force applying member capable of being pressed or poked by a large thumb, the running control portion 2050 is connected with an external signal line arranged in the second cavity 2030 and the fourth cavity 1030 and separated from the electric drive device to prevent winding, the riser 302 is provided with a wire outlet hole 304 penetrating through the second cavity 2030 and the fourth cavity 1030 to facilitate the wire outlet connection of the external signal line.

[0117] Referring to FIGS. 22-27, the application further provides an intelligent electric travel suitcase including a seatable suitcase 40 and the above-mentioned electric steering device. Specifically, the suitcase 40 is provided at the bottom rear side with a rear wheel 401, the wheel 301 in the electric steering device is a power wheel, the rear wheel 401 is driven by the power wheel to realize the advance and retreat of the electric travel suitcase, the suitcase 40 is internally provided with a controller 402, a slide rail 403 fixedly arranged in the suitcase 40, an extension rod 404 mounted on the slide rail 403 and slidable along the slide rail 403 to protrude out of the suitcase 40, the extension rod 404 is rotationally connected with the first tube 100, the extension rod 404 is a hollow tubular structure and is in communication with the riser 302 and the first tube 100, the external signal line extends into the extension rod 404 from the wire outlet hole 304 and enters the inside of the suitcase 40 to be connected with the controller 402;

[0118] The second electric telescopic push rod 405 is fixed to the box body 40 at one end and connected with the telescopic rod 404 at the other end, and the telescopic rod 404 is driven by the second electric telescopic push rod 405 to realize electric telescopic movement in the front-back direction. The box body 40 is provided with an opening 406 at the front part, and a front baffle 407 is installed at the opening 406. The front baffle 407 is provided with a hole 408 for the telescopic rod 404 to pass through, and a groove 409 is arranged at the lower part of the front baffle 407. The groove 409 is matched with the wheel 301, and when the telescopic rod 404 is in the retracted state, the wheel 301 is located in the groove 409. The slide rail 403 is arranged at the hole 408 and integrally formed with the front baffle 407.

[0119] Referring to FIGS. 22, 23 and 28, the box body 40 is provided with a battery 410 and a battery slot 411 at the rear part. The battery 410 is detachably installed in the battery slot 411. The box body 40 is also provided with a rear pull rod 412, a power switch 413 and a control switch 414 at the rear part. The rear pull rod 412 is used for manually pushing and pulling the travel suitcase by the user in the non-riding state. The power switch 413 and the control switch 414 are connected with the controller 402. The power switch 413 is used for controlling the opening and closing of the total power supply of the travel suitcase. The control switch 414 is used for controlling the first electric telescopic push rod 2010 and the second electric telescopic push rod 405. When the riding state is switched, the user controls the control switch 414. The second electric telescopic push rod 405 drives the telescopic rod 404 to extend outward, and at the same time, the first electric telescopic push rod 2010 drives the second pipe body 200 to extend upward. When the non-riding state is switched, the user controls the control switch 414 again. The second electric telescopic push rod 405 drives the telescopic rod 404 to retract inward, and at the same time, the first electric telescopic push rod 2010 drives the second pipe body 200 to retract downward.

[0120] Referring to FIGS. 29, 32 to 34, the application provides an electric steering device, which comprises a fixed rod 1000 and a lifting rod 2000. The fixed rod 1000 is connected with a wheel 300 at the bottom, and the wheel 300 is a hub motor wheel for providing moving power. The lifting rod 2000 is slidingly installed on the upper part of the fixed rod 1000 and can slide along the length direction of the fixed rod 1000. The fixed rod 1000 is internally provided with a driving motor 10100. The output end of the driving motor 10100 is provided with a lead screw 10200, which is threadedly connected with the lifting rod 2000. When the driving motor 10100 is started, the output end drives the lead screw 10200 to rotate. Since the driving motor 10100 body is fixed and does not move, when the lead screw 10200 rotates, the lifting rod 2000 threadedly connected with the lead screw 10200 rises and falls in the up-down direction, thereby realizing electric lifting of the steering device.

[0121] Optionally, the outer periphery of the lead screw 10200 is provided with external threads, the bottom of the lifting rod 2000 is provided with a threaded connecting block 20100, the threaded connecting block 20100 is fixedly connected with the lifting rod 2000, the threaded connecting block 20100 is internally provided with internal threads matched with the external threads, and the lead screw 10200 is inserted into the threaded connecting block 20100 to achieve threaded connection with the lifting rod 2000.

[0122] Referring to FIGS. 30, 31, and 35, the fixed rod 1000 is internally provided with a motor mounting seat 10300, and the driving motor 10100 is fixedly mounted on the motor mounting seat 10300. The inner side wall of the fixed rod 1000 is provided with a limiting protruding rib 10400, and the outer side wall of the lifting rod 2000 is provided with a limiting groove 20200 matched with the limiting protruding rib 10400. The lifting rod 2000 is inserted into the limiting groove 20200 through the limiting protruding rib 10400 to achieve sliding relative to the fixed rod 1000. The cooperation of the limiting protruding rib 10400 and the limiting groove 20200 not only provides sliding guidance for the sliding of the lifting rod 2000, but also provides turning limiting for the lifting rod 2000 and the fixed rod 1000, so that the lifting rod 2000 can drive the fixed rod 1000 to turn left and right synchronously when turning left and right.

[0123] The lifting rod 2000 is internally provided with a partition plate 20300, which divides the inside of the lifting rod 2000 into a first cavity 20400 and a second cavity 20500. The lead screw 10200 is inserted into the first cavity 20400 to be threadedly connected with the lifting rod 2000. The second cavity 20500 is internally provided with a signal connecting line 20600. The partition plate 20300 can separate the lead screw 10200 from the signal connecting line 20600, so as to avoid interference or winding of the signal connecting line 20600 in the process of rotation of the lead screw 10200.

[0124] The upper portion of the lifting rod 2000 is provided with a handle assembly 400 for user hand holding. The present application provides the following two implementation modes of electric folding of the handle assembly 400:

[0125] The first embodiment: refer to FIG. 36 to FIG. 47, the upper part of the lifting rod 2000 is provided with a handle assembly 400, the handle assembly 400 includes a fixed part 4010, two handle rods 4020 symmetrically installed at both ends of the fixed part 4010, two connecting rods 4030, a first connecting rod 4040 and a second connecting rod 4050, a connecting rod installation cavity 4060 is formed in the screw rod 10200, the connecting rod installation cavity 4060 extends along the length direction of the screw rod 10200 and penetrates through the top of the screw rod 10200, the connecting rod installation cavity 4060 is provided with a connecting rod installation sleeve 4070 which is rotationally connected with the screw rod 10200, when the screw rod 10200 rotates, the connecting rod installation cavity 4060 does not rotate with the screw rod 10200, specifically, the connecting rod installation cavity 4060 and the connecting rod installation sleeve 4070 are both cylindrical, the bottom of the connecting rod installation sleeve 4070 is provided with a rotating bearing 4080, the connecting rod installation sleeve 4070 is inserted into the connecting rod installation cavity 4060 and rotationally connected with the screw rod 10200. The inside of the connecting rod installation sleeve 4070 is provided with a first rack 4090 which is vertically arranged, the upper end of the first connecting rod 4040 is fixedly installed on the fixed part 4010, the lower end is inserted into the connecting rod installation sleeve 4070 and is provided with a guide gear 4100, one end of each of the two connecting rods 4030 is rotationally connected with the two handle rods 4020, the other end is rotationally connected with the upper end of the second connecting rod 4050, the lower end of the second connecting rod 4050 is inserted into the connecting rod installation sleeve 4070, and the lower end of the second connecting rod 4050 is provided with a second rack 4110 which is vertically arranged, the guide gear 4100 corresponds to the position of the second rack 4110, and the guide gear 4100 is meshingly connected with the second rack 4110, the tooth surface of the second rack 4100 corresponds to the tooth surface of the first rack 4090.

[0126] When the lifting rod 2000 is not lifted, the two handle rods 4020 are folded downwards. When the driving motor 10100 drives the lifting rod 2000 to rise, the fixing member 4010 fixed to the upper part of the lifting rod 2000 rises synchronously, and the fixing member 4010 drives the first connecting rod 4040 to rise relative to the connecting rod mounting sleeve 4070. The connecting rod 4030 drives the second connecting rod 4050 to rise relative to the connecting rod mounting sleeve 4070. When the first connecting rod 4040 rises to a certain height relative to the connecting rod mounting sleeve 4070, the guide gear 4100 contacts and meshes with the first gear rack 4090 at the upper end inside the connecting rod mounting sleeve 4070. During the continuous rising of the first connecting rod 4040, the guide gear 4100 starts to rotate relative to the first gear rack 4090. After the guide gear 4100 rotates, the second gear rack 4110 meshing with the guide gear 4100 slides upwards, i.e. drives the second connecting rod 4050 to slide upwards relative to the first connecting rod 4040. The second connecting rod 4050 slides upwards and holds the connecting rod 4030 to move upwards, and the connecting rod 4030 drives the handle rod 4020 to rotate upwards to achieve electrically unfolding. When the driving motor 1010 drives the lifting rod 2000 to descend, the fixing member 4010 drives the first connecting rod 4040 to descend, and the guide gear 4100 rotates along the first gear rack 4090 and drives the second connecting rod 4050 to slide downwards relative to the first connecting rod 4040. The first connecting rod 4040 pulls the connecting rod 4030 downwards, drives the handle rod 4020 to rotate downwards to fold, and the handle rod 4020 completes folding after the guide gear 4100 is disengaged from the first gear rack 4090.

[0127] Referring to FIGS. 48-50, in the present embodiment, the end of the handle rod 4020 close to the fixing member 4010 is provided with a rotating connecting member 4120, which is long handle-shaped and protrudes outwardly from the handle rod 4020. The fixing member 4010 is provided with a rotating connecting block 4130 adapted to the rotating connecting member 4120. The rotating connecting member 4120 and the rotating connecting block 4130 are both provided with corresponding shaft holes 4140. When the handle rod 4020 is connected with the fixing member 4010, the rotating connecting member 4120 is inserted into the fixing member 4010 and connected with the rotating connecting block 4130 through a pin shaft 415 inserted into the shaft hole 4140 to realize rotating connection. A rotating groove 416 is formed in the rotating connecting member 4120. The sidewall of the rotating groove 416 and the two ends of the connecting rod 4030 are both provided with shaft holes 4140. The end of the connecting rod 4030 close to the handle rod 4020 is inserted into the rotating groove 416 and connected with the handle rod 4020 through a pin shaft 415 inserted into the shaft hole 4140 to realize rotating connection. The two handle rods 4020 are symmetrically arranged at the two ends of the fixing member 4010 and have the same connection structure with the fixing member 4010 and the connecting rod 4030.

[0128] Referring to FIGS. 40 and 41, the connecting rod 4030 is a wavy connecting rod. Since the connecting rod 4030 is also in a moving state inside the fixed member 4010 during the rotation of the handle rod 4020, the connecting rod 4030 is designed as a wavy connecting rod, so that it can avoid other structural components during the movement to prevent interference and affect the normal rotation of the handle rod 4020. The two ends of the fixed member 4010 are provided with first avoiding portions 417, and the end of the handle rod 4020 close to the fixed member 4010 is provided with a second avoiding portion 418 matched with the first avoiding portion 417. The first avoiding portion 417 and the second avoiding portion 418 are both L-shaped, and the first avoiding portion 417 and the second avoiding portion 418 are attached to each other after the handle rod 4020 is rotated downward.

[0129] The second embodiment: referring to FIGS. 51 to 55, the upper part of the lifting rod 2000 is provided with a handle assembly 400, which includes a fixed member 4010, two handle rods 4020 symmetrically installed at the two ends of the fixed member 4010, a rotating connecting rod 419, a connecting rod sliding cavity 420 is formed in the inside of the lead screw 10200, the connecting rod sliding cavity 420 extends along the length direction of the lead screw 10200 and penetrates through the top of the lead screw 10200, one end of the rotating connecting rod 419 is inserted into the connecting rod sliding cavity 420 and can slide up and down along the connecting rod sliding cavity 420, the cross section of the rotating connecting rod 419 and the connecting rod sliding cavity 420 is a polygonal cross section matched with each other, the rotating connecting rod 419 is driven to rotate synchronously when the lead screw 10200 rotates, the other end of the rotating connecting rod 419 extends into the fixed member 4010 and is connected with a first bevel gear 421, the inside of the fixed member 4010 is provided with two second bevel gears 422 located on both sides of the first bevel gear 421 and matched with the first bevel gear 421, the two second bevel gears 422 are fixedly installed in the inside of the fixed member 4010 through the pin shaft 415, and the two second bevel gears 422 are engaged with the first bevel gear 421, the rotating connection parts of the two handle rods 4020 and the fixed member 4010 are respectively provided with third bevel gears 423 matched with the second bevel gears 422, and the third bevel gears 423 are engaged with the second bevel gears 422.

[0130] When the lifting rod 2000 is not lifted, the two handle rods 4020 are folded downwards. When the driving motor 10100 is started, the lifting rod 2000 is lifted upwards relative to the fixed rod 1000, while the screw rod 10200 rotates to drive the rotating connecting rod 419 to rotate, the rotating connecting rod 419 drives the first bevel gear 421 to rotate, the first bevel gear 421 drives the two second bevel gears 422 to rotate, the two second bevel gears 422 respectively drive the two third bevel gears 423 to rotate, and then drive the handle rods 4020 to rotate upwards relative to the fixed part 4010, realizing electric unfolding. When the driving motor 10100 drives the lifting rod 2000 to descend, the screw rod 10200 rotates in the opposite direction to drive the rotating connecting rod 419 to rotate in the opposite direction, and the rotating connecting rod 419 drives the first bevel gear 421, the two second bevel gears 422, and the two third bevel gears 423 to rotate in the opposite direction in turn, and finally drives the handle rods 4020 to rotate downwards relative to the fixed part 4010, realizing electric folding.

[0131] Referring to FIGS. 56-60, in the present embodiment, the end of the handle rod 4020 close to the fixed part 4010 is provided with a rotating connecting part 4120, which is long handle-shaped and protrudes outwardly from the handle rod 4020, and a gear groove 424 is formed in the rotating connecting part 4120, a third bevel gear 423 is embedded in the gear groove 424 and fixedly connected with the rotating connecting part 4120, and the rotating connecting part 4120 and the fixed part 4010 are both provided with corresponding shaft holes 4140 corresponding to the shaft center of the third bevel gear 423, and the rotating connection between the handle rod 4020 and the fixed part 4010 is realized by inserting a pin shaft 415 into the shaft hole 4140 and the shaft center of the third bevel gear 423. The gear spiral directions of the two second bevel gears 422 are the same, the gear spiral directions of the two third bevel gears 423 are the same, and the gear spiral directions of the second bevel gear 422 and the third bevel gear 423 are opposite. The two handle rods 4020 are symmetrically arranged at the two ends of the fixed part 4010 and have the same connection structure with the fixed part 4010. The end of the rotating connecting rod 419 extending into the fixed part 4010 is provided with a first spur gear 425, the first bevel gear 421 is coaxially provided with a second spur gear 426, the second spur gear 426 is integrally formed with the first bevel gear 421, and the first spur gear 425 is drivingly connected with the second spur gear 426 through a combined spur gear 427, wherein the combined spur gear 427 is composed of an upper spur gear 428 and a lower spur gear 429, the upper spur gear 428 is engaged with the second spur gear 426, and the lower spur gear 429 is engaged with the first spur gear 425. The end of the rotating connecting rod 419 drives the first spur gear 425 to rotate, the first spur gear 425 drives the first bevel gear 421 to rotate through the driving combined spur gear 427, and the combined spur gear 427 can reduce the rotation speed of the rotating connecting rod 419 transmitted to the first bevel gear 421, so as to ensure that the unfolding and folding of the handle rod 4020 are kept synchronous with the rising and lowering of the lifting rod 2000. The two ends of the fixed part 4010 are both provided with a first avoiding part 417, and the end of the handle rod 4020 close to the fixed part 4010 is provided with a second avoiding part 418 matched with the first avoiding part 417, and the first avoiding part 417 and the second avoiding part 418 are both L-shaped, and when the handle rod 4020 is rotated downwardly, the first avoiding part 417 and the second avoiding part 418 are attached to each other.

[0132] Both the above two embodiments realize the electric lifting of the lifting rod, and the electric unfolding and folding of the handle rod at the same time.

[0133] Referring to FIG. 61, the present application further provides an intelligent electric travel suitcase, which comprises a seatable suitcase body 50 and the above-mentioned steering device.

[0134] Optionally, the bottom rear side of the box 50 is provided with a rear wheel 501, the wheel 300 in the steering device is a power wheel, the rear wheel 501 is driven by the power wheel to realize the forward and backward movement of the electric suitcase, the inside of the box 50 is provided with a controller 502, a sliding rail 503 fixed in the inside of the box 50, an extension rod 504 installed on the sliding rail 503 and capable of sliding along the sliding rail 503 to protrude out of the box 50, the extension rod 504 is rotationally connected with the fixed rod 1000, the extension rod 504 is a hollow tubular structure and communicates with the inside of the fixed rod 1000, and the driving motor 10100 is signal connected with the controller 502.

[0135] Referring to FIGS. 62-67, the inside of the box 50 is provided with an electric telescopic push rod 505, one end of the electric telescopic push rod 505 is fixed to the box 50, the other end is connected with the extension rod 504, and the extension rod 504 realizes the electric telescopic movement in the front and rear directions under the driving of the electric telescopic push rod 505; the front part of the box 50 is provided with an opening 506, the opening 506 is installed with a front baffle 507, the upper part of the front baffle 507 is provided with a hole 508 for the extension rod 504 to pass through, the lower part of the front baffle 507 is provided with a groove 509, the groove 509 is matched with the wheel 300, and when the extension rod 504 is in the retracted state, the wheel 300 is located in the groove 509; the sliding rail 503 is arranged at the hole 508 and is integrally formed with the front baffle 507.

[0136] The rear part of the box 50 is provided with a battery 510 and a battery slot 511, the battery 510 is detachably installed in the battery slot 511; the rear part of the box 50 is also provided with a rear pull rod 512, a power switch 513 and a control switch 514, the rear pull rod 512 is used for manually pushing and pulling the suitcase by the user in the non-riding state, the electric telescopic push rod 505, the power switch 513 and the control switch 514 are all connected with the controller 502, the power switch 513 is used for controlling the opening and closing of the total power supply of the suitcase, and the control switch 514 is used for controlling the electric telescopic push rod 505 and the driving motor 10100. When switching to the riding state, the user controls the control switch 514, the electric telescopic push rod 505 drives the extension rod 504 to extend outward, and at the same time, the driving motor 10100 drives the lifting rod 2000 to rise upward and the handle rod 4020 to unfold upward; when switching to the non-riding state, the user controls the control switch 514 again, the electric telescopic push rod 505 drives the extension rod 504 to retract inward, and at the same time, the driving motor 10100 drives the lifting rod 2000 to retract downward and the handle rod 4020 to fold downward.

[0137] Finally, it should be noted that the above examples are only used to illustrate the present application and are not intended to limit the technical solutions described in the present application; therefore, although the present application has been described in detail with reference to the above examples, those of ordinary skill in the art should understand that the present application can still be modified or equivalently replaced; and all technical solutions and improvements that do not deviate from the spirit and scope of the present application should be covered in the scope of the claims of the present application.

Claims

1. A smart electric travel suitcase, characterized by: The utility model provides a kind of electric travel suitcase, including the box that can be ridden and the handlebar rod installed on the box, the handlebar rod includes fixed rod and lifting rod, the lifting rod is slidably installed on the upper portion of fixed rod and can slide along the length direction of fixed rod, the inside of fixed rod is equipped with driving motor, the output end of driving motor is equipped with screw rod, the screw rod is connected with lifting rod, and the lifting rod is raised and lowered around screw rod relative to fixed rod.

2. The smart electric travel suitcase according to claim 1, characterized in that: The outer periphery of the screw rod is provided with external threads, and the bottom of the lifting rod is provided with a rotating connecting block. The rotating connecting block is internally provided with internal threads that are adapted to the external threads. The screw rod is inserted into the rotating connecting block to achieve threaded connection with the lifting rod.

3. The smart electric travel suitcase of claim 1, wherein: The inside of the fixed rod is provided with a motor mounting seat, and the driving motor is fixedly installed on the motor mounting seat.

4. The intelligent electric travel suitcase according to claim 1, characterized in that: The inner side wall of the fixed rod is provided with a limiting protruding rib, and the outer side wall of the lifting rod is provided with a limiting groove that is adapted to the limiting protruding rib. The lifting rod is inserted into the limiting groove through the limiting protruding rib to achieve sliding relative to the fixed rod.

5. The intelligent electric travel suitcase according to claim 1, wherein: The inside of the lifting rod is provided with a partition plate. The partition plate divides the inside of the lifting rod into a first cavity and a second cavity. The screw rod is inserted into the first cavity to achieve threaded connection with the lifting rod. The second cavity is provided with a signal connecting line.

6. The intelligent electric travel suitcase according to claim 1, wherein: The intelligent electric travel suitcase further includes a sliding rail fixed inside the box, an extension rod installed on the sliding rail and protruding out of the box by sliding along the sliding rail, and an electric push rod for driving the extension rod to slide. The front end of the extension rod is rotationally connected with the fixed rod.

7. The intelligent electric travel suitcase according to claim 1, characterized in that: The bottom of the fixed rod is connected with a front wheel, which is a hub motor wheel.

8. The intelligent electric travel suitcase according to claim 1, characterized in that: The rear part of the box is provided with a battery and a battery slot. The battery is detachably installed in the battery slot.

9. An electric power steering apparatus characterized by comprising: The utility model includes first pipe body, set up in first pipe body and can slide relative to first pipe body second pipe body, first pipe body inside is equipped with electric drive device, electric drive device is connected with second pipe body and drives second pipe body relative to first pipe body slide.

10. The electric power steering apparatus according to claim 9, characterized by The electric drive device is a first electric telescopic push rod.

11. The electric power steering apparatus according to claim 10, wherein The bottom of the first pipe body is connected with a wheel through a yoke. The upper part of the yoke is provided with a vertical pipe. The vertical pipe is inserted into the inside of the first pipe body and fixedly connected with the first pipe body. One end of the first electric telescopic push rod is inserted into the vertical pipe and connected with the yoke, and the other end is connected with the second pipe body.

12. The electric power steering apparatus according to claim 11, characterized by The inside of the second pipe body is provided with a first cavity and a second cavity. The inside of the first pipe body is provided with a third cavity that is adapted to the first cavity and a fourth cavity that is adapted to the second cavity. The electric drive device is arranged in the third cavity and extends into the first cavity to be connected with the second pipe body.

13. The electric power steering apparatus according to claim 12, characterized by The upper part of the second pipe body is provided with a steering handle and a running control part installed on the steering handle. The external signal line of the running control part is arranged in the second cavity and the fourth cavity.

14. A smart electric travel suitcase, characterized in that, The utility model includes a box that can be ridden, and the electric steering device of any one of claims 9-13.

15. The intelligent electric travel suitcase according to claim 14, characterized in that, The box includes a controller, a sliding rail fixed inside the box, an extension rod installed on the sliding rail and protruding out of the box by sliding along the sliding rail, the extension rod is rotationally connected with the first pipe body, and the extension rod is a hollow tubular structure and communicates with the first pipe body.

16. The intelligent electric travel suitcase according to claim 15, characterized in that, The box is internally provided with a second electric telescopic push rod, one end of the second electric telescopic push rod is fixed to the box, the other end is connected with the telescopic rod, and the telescopic rod is driven by the second electric telescopic push rod to realize electric telescopic.

17. The intelligent electric travel suitcase of claim 14, wherein, The rear part of the box is provided with a battery and a battery slot, and the battery is detachably installed in the battery slot.

18. An electric power steering apparatus characterized by comprising: The fixed rod and the lifting rod are included, the lifting rod is slidingly installed on the upper part of the fixed rod and can slide along the length direction of the fixed rod, the inside of the fixed rod is provided with a driving motor, the output end of the driving motor is provided with a lead screw, the lead screw is threadedly connected with the lifting rod, and the lifting rod is lifted up and down relative to the fixed rod around the thread direction.

19. The electrically powered steering apparatus of claim 18 wherein, The outer periphery of the lead screw is provided with an external thread, the bottom of the lifting rod is provided with a threaded connecting block, the threaded connecting block is internally provided with an internal thread matched with the external thread, and the lead screw is inserted into the threaded connecting block to realize the threaded connection with the lifting rod.

20. The electrically powered steering apparatus of claim 18 wherein, The inner side wall of the fixed rod is provided with a limiting convex rib, the outer side wall of the lifting rod is provided with a limiting groove matched with the limiting convex rib, and the lifting rod is inserted into the limiting groove through the limiting convex rib to realize the sliding relative to the fixed rod.

21. The electric power steering apparatus according to claim 18, wherein The inside of the lifting rod is provided with a partition plate, the partition plate divides the inside of the lifting rod into a first cavity and a second cavity, the lead screw is inserted into the first cavity to be threadedly connected with the lifting rod, and the second cavity is provided with a signal connecting line.

22. The electric power steering apparatus according to claim 18, characterized by The upper part of the lifting rod is provided with a handle assembly, the handle assembly includes a fixed piece, two handle rods symmetrically installed at two ends of the fixed piece, two connecting rods, a first connecting rod and a second connecting rod, a connecting rod installation cavity is formed in the inside of the lead screw, a connecting rod installation sleeve that is rotationally connected with the lead screw is arranged in the connecting rod installation cavity, a first rack that is vertically arranged is arranged at the inside upper end of the connecting rod installation sleeve, the upper end of the first connecting rod is fixedly installed on the fixed piece, the lower end is inserted into the connecting rod installation sleeve and is provided with a guide gear, one end of each of the two connecting rods is rotationally connected with the two handle rods, the other end is rotationally connected with the upper end of the second connecting rod, the lower end of the second connecting rod is inserted into the connecting rod installation sleeve and is provided with a second rack that is vertically arranged, and the guide gear is meshedly connected with the second rack.

23. The electrically powered steering apparatus of claim 18 wherein, The upper part of the lifting rod is provided with a handle assembly, the handle assembly includes a fixed piece, two handle rods symmetrically installed at two ends of the fixed piece, a rotating connecting rod, a connecting rod sliding cavity is formed in the inside of the lead screw, one end of the rotating connecting rod is inserted into the connecting rod sliding cavity and can slide up and down along the connecting rod sliding cavity, the other end extends into the fixed piece and is connected with a first bevel gear, the inside of the fixed piece is provided with two second bevel gears located on the two sides of the first bevel gear and matched with the first bevel gear, and each of the two handle rods is provided with a third bevel gear matched with the second bevel gear at the rotating connection position with the fixed piece.

24. A smart electric travel suitcase characterized by, The box includes a seatable box and the steering device of any one of claims 18-23.

25. The intelligent electric travel suitcase according to claim 24, wherein, The box includes a controller, a sliding rail fixed in the inside of the box, a telescopic rod installed on the sliding rail and capable of sliding along the sliding rail to protrude out of the box, and the telescopic rod is rotationally connected with the fixed rod.

Images