Steering device and motorized suitcase

Abstract

A steering device and a motorized suitcase, which belong to the field of suitcases. The steering device comprises: a first tubular body; a second tubular body, which is arranged in the first tubular body and is slidable relative to the first tubular body; and a pull rod assembly, which is arranged in the first tubular body or the second tubular body and is slidable relative to the first tubular body or the second tubular body. Since the pull rod assembly is integrated into the steering device, the overall size of the pull rod assembly is reduced, and thus the space occupied by the pull rod assembly is reduced; and the overall weight of the pull rod assembly is greatly reduced due to the reduction in the overall size, which makes it more convenient for users to use and carry in daily life, and can also meet the requirements of boarding when going outside, greatly reduce the production cost, and simplify the production and assembly process.

Description

Steering device and electric luggage box

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the Patent Office of China on February 2, 2024, with application number 202410146347.0 and invention name “A Steering Device and Electric Trunk”, and the Chinese patent application filed with the Patent Office of China on March 7, 2024, with application number 202410265472.3 and invention name “A Steering Device and Electric Trunk”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of luggage boxes, and in particular to a steering device and an electric luggage box. Background Art

[0004] A suitcase, also known as a travel case or trolley case, is a box used to carry items such as clothing and daily necessities when traveling. Electric suitcases improve upon traditional suitcases by making them rideable, thus reducing the burden of carrying them. However, during the research process for this application, the inventors discovered that existing electric suitcases are typically heavy, making them inconvenient for daily use and carrying, and also making them unsuitable for boarding aircraft. Furthermore, the production cost is high, and the assembly process is complex. Therefore, a steering device and electric suitcase were designed to address this issue.

[0005] Summary of the Invention

[0006] The present application provides a steering device and an electric trunk to solve the problems raised in the background technology.

[0007] A steering device includes a first tube body, a second tube body arranged in the first tube body and slidable relative to the first tube body, and a pull rod assembly arranged in the first tube body or the second tube body and slidable relative to the first tube body or the second tube body.

[0008] Optionally, the second tube body is a hollow tubular structure, the pull rod assembly includes a rod body and a pull rod handle installed on the top of the rod body, the rod body is inserted into the second tube body and can slide relative to the second tube body, and the pull rod assembly includes a positioning piece for positioning and fixing the pull rod assembly.

[0009] Optionally, the rod body is a hollow tubular structure, and the positioning member includes an elastic button arranged on the pull rod handle, a push rod arranged inside the rod body and connected to the elastic button, a pressure member arranged at the bottom of the push rod, a positioning seat arranged at the bottom of the rod body, a positioning pin arranged on the positioning seat and abutting against the pressure member to position or unlock the position, and the second tube body is provided with a positioning hole adapted to the positioning pin.

[0010] Optionally, the inner wall of the second tube body is provided with a guide boss, and the outer wall of the rod body is provided with a guide slot adapted to the guide boss, and the guide boss provides sliding guidance for the rod body by being inserted into the guide slot.

[0011] Optionally, a steering handle and a control component arranged on the steering handle are provided on the top of the second tube body. The steering handle is hollow and connected to the interior of the second tube body. The control component is connected to a signal transmission line, and the signal transmission line is arranged inside the steering handle and the second tube body.

[0012] Optionally, the signal transmission line adopts a spring line structure, one end of the signal transmission line is connected to the control component, and the other end passes through the steering handle and the inside of the second tube body and is externally connected to the controller.

[0013] Optionally, one end of the signal transmission line is connected to the control component, and the other end passes through the steering handle and the inside of the second tube body and is connected to a signal transmission spring. The signal transmission spring is installed and fixed on the outer wall of the second tube body. The signal transmission line passes through the second tube body and is connected to the signal transmission spring. The inner wall of the first tube body is provided with a signal transmission plate adapted to the signal transmission spring. The signal transmission plate is arranged along the sliding direction of the second tube body relative to the first tube body. The signal transmission spring is in contact with the signal transmission plate and always remains connected when the second tube body slides relative to the first tube body. The signal transmission board is connected to the signal transmission line and an external controller.

[0014] Optionally, the interior of the second tube body is divided into a first cavity and a second cavity by a partition, the rod body is located in the first cavity, and the signal transmission line is located in the second cavity.

[0015] Optionally, the steering handle is provided with a socket for the rod body to pass through, and a socket adapted to the pull rod handle.

[0016] Optionally, a quick-release fastener is provided on the upper portion of the first tube body, and the second tube body is inserted into the first tube body and positioned and fixed by the quick-release fastener.

[0017] Optionally, a bushing is provided at the connection between the first tube body and the second tube body, the bushing is inserted into the first tube body, and the second tube body is inserted into the bushing and extends into the first tube body.

[0018] Optionally, the outer side wall of the second tube body is provided with a guide slot, and the first tube body is provided with a guide rod adapted to the guide slot, and the guide rod is inserted into the guide slot to provide sliding guidance for the second tube body.

[0019] Optionally, the pull rod assembly includes a rod body and a pull rod handle installed on the top of the rod body, a guide groove is provided on the side of the second tube body, and the rod body is provided with a guide slider adapted to the guide groove, and the rod body is inserted into the guide groove through the guide slider to slide relative to the second tube body.

[0020] Optionally, the steering device also includes a positioning member for positioning and fixing the pull rod assembly, the positioning member includes a positioning member mounting seat installed on the second tube body, and an elastic positioning pin installed on the positioning member mounting seat, the rod body is provided with a positioning hole adapted to the elastic positioning pin, and the pull rod assembly is positioned and fixed by inserting the elastic positioning pin into the positioning hole.

[0021] Optionally, the pull rod assembly includes a rod body and a pull rod handle installed on the top of the rod body, the first tube body includes a third cavity and a fourth cavity, the second tube body is arranged in the third cavity, and the rod body is arranged in the fourth cavity.

[0022] Optionally, the third cavity and the fourth cavity are both provided with guide grooves, the second tube body and the rod body are both provided with guide sliders adapted to the guide grooves, and the second tube body and the rod body are both inserted into the guide grooves by the guide sliders to slide relative to the first tube body.

[0023] Optionally, the steering device also includes a positioning member for positioning and fixing the pull rod assembly, the positioning member includes an elastic positioning pin installed on the rod body, the first tube body is provided with a positioning hole adapted to the elastic positioning pin, and the pull rod assembly is positioned and fixed by inserting the elastic positioning pin into the positioning hole.

[0024] Optionally, the pull rod assembly includes a rod body and a pull rod handle installed on the top of the rod body, the second tube body includes a fifth cavity, and the rod body is arranged in the fifth cavity and can slide relative to the second tube body.

[0025] Optionally, the fifth cavity is provided with a guide slot, the rod body is provided with a guide slider adapted to the guide slot, and the pull rod assembly slides relative to the second tube body by inserting the guide slider into the guide slot.

[0026] Optionally, the steering device also includes a positioning member for positioning and fixing the pull rod assembly, the rod body is a hollow tubular structure, and the positioning member includes an elastic button arranged on the pull rod handle, a push rod arranged inside the rod body and connected to the elastic button, a pressure member arranged at the bottom of the push rod, a positioning seat arranged at the bottom of the rod body, a positioning pin arranged on the positioning seat and abutting against the pressure member to position or unlock the position, and the second tube body is provided with a positioning hole adapted to the positioning pin.

[0027] An electric luggage box comprises a rideable box body and the above-mentioned steering device.

[0028] Optionally, a front wheel is installed at the bottom of the first tube body, and the box body includes a controller, a slide rail fixed inside the box body, and a telescopic rod installed on the slide rail and capable of sliding along the slide rail and protruding out of the box body. The telescopic rod is rotatably connected to the first tube body, and the telescopic rod is a hollow tubular structure and is connected to the first tube body. The signal transmission line of the control component passes through the telescopic rod and is connected to the controller.

[0029] Optionally, an electric push rod is provided inside the box body, one end of the electric push rod is fixed to the box body, and the other end is connected to the telescopic rod, and the telescopic rod is electrically extended and retracted under the drive of the electric push rod.

[0030] Optionally, the steering device passes through the top wall of the box and is connected to the front wheel.

[0031] Optionally, a battery and a battery slot are provided at the rear of the box, and the battery is detachably installed in the battery slot.

[0032] It can be seen from the above technical solution that the steering device and electric suitcase provided by the present application creatively integrate the pull rod assembly into the steering device. Compared with the structure and installation method of the existing traditional pull rod assembly, on the one hand, the overall size of the pull rod assembly is reduced, thereby reducing the space occupied by the pull rod assembly. On the other hand, due to the reduction in the overall size, the overall weight of the pull rod assembly is also greatly reduced, which can be more convenient for users' daily use and carrying, and can also meet the requirements of boarding when going out, greatly reducing production costs and simplifying the production and assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG1 is a perspective view of a first embodiment of a steering device provided in the present application;

[0034] FIG2 is a perspective view of the first embodiment of the steering device provided by the present application, in which the second tube body is extended;

[0035] FIG3 is a perspective view of the first embodiment of the steering device provided by the present application, in which the rod body and the second tube body are both extended;

[0036] FIG4 is a perspective view of a first tube body in the first embodiment of the steering device provided by the present application;

[0037] FIG5 is a perspective view of a bushing in the first embodiment of the steering device provided in the present application;

[0038] FIG6 is a perspective view of the second tube and the steering handle in the first embodiment of the steering device provided by the present application;

[0039] FIG7 is a schematic diagram of one side of the second tube and the steering handle in the first embodiment of the steering device provided by the present application;

[0040] FIG8 is a schematic diagram of the other side of the second tube and the steering handle in the first embodiment of the steering device provided by the present application;

[0041] FIG9 is a perspective view of the second tube body in the first embodiment of the steering device provided by the present application;

[0042] FIG10 is a top view of the second tube in the first embodiment of the steering device provided by the present application;

[0043] FIG11 is a perspective view of a pull rod assembly in the first embodiment of the steering device provided in the present application;

[0044] FIG12 is a perspective view of a rod body in the first embodiment of the steering device provided by the present application;

[0045] FIG13 is a perspective view of a U-shaped clamp in the first embodiment of the steering device provided in the present application;

[0046] FIG14 is a perspective view of a positioning member in the first embodiment of the steering device provided in the present application;

[0047] FIG15 is a perspective view of an elastic button in the first embodiment of the steering device provided by the present application;

[0048] FIG16 is a perspective view of a pressing member and a positioning seat in the first embodiment of the steering device provided in the present application;

[0049] FIG17 is a perspective view of a pressing member in the first embodiment of the steering device provided in the present application;

[0050] FIG18 is a perspective view of a positioning seat in the first embodiment of the steering device provided in the present application;

[0051] FIG19 is a perspective view of a pressing member and a positioning pin in the first embodiment of the steering device provided by the present application;

[0052] FIG20 is a schematic diagram of a first signal transmission method in the first embodiment of the steering device provided by the present application;

[0053] FIG21 is a schematic diagram of the installation of a signal transmission board in the second signal transmission mode in the first embodiment of the steering device provided by the present application;

[0054] FIG22 is a schematic diagram of a signal transmission board in a second signal transmission mode in the first embodiment of the steering device provided by the present application;

[0055] FIG23 is a schematic diagram of the installation of a signal transmission spring in the second signal transmission mode in the first embodiment of the steering device provided by the present application;

[0056] FIG24 is a schematic diagram of a signal transmission spring in the second signal transmission mode in the first embodiment of the steering device provided by the present application;

[0057] FIG25 is a schematic diagram showing the connection between the signal transmission spring and the signal transmission board in the second signal transmission mode in the first embodiment of the steering device provided by the present application;

[0058] FIG26 is a perspective view of a second embodiment of the steering device provided by the present application;

[0059] FIG27 is a perspective view of the second embodiment of the steering device provided by the present application, in which the second tube body is extended;

[0060] FIG28 is a front view of the second embodiment of the steering device provided by the present application, in which the second tube body is extended;

[0061] FIG29 is a perspective view of a rod body in a second embodiment of the steering device provided by the present application;

[0062] FIG30 is a schematic diagram of the bottom of the rod body in the second embodiment of the steering device provided by the present application;

[0063] FIG31 is a perspective view of a second tube body in the second embodiment of the steering device provided by the present application;

[0064] FIG32 is a perspective view of a third embodiment of the steering device provided in this application;

[0065] FIG33 is a perspective view of the first tube in the third embodiment of the steering device provided by the present application;

[0066] FIG34 is a partial enlarged view of point A in FIG33;

[0067] FIG35 is a perspective view of a rod body in a third embodiment of the steering device provided by the present application;

[0068] FIG36 is a perspective view of a fourth embodiment of the steering device provided by the present application;

[0069] FIG37 is a perspective view of the second tube body in the fourth embodiment of the steering device provided by the present application;

[0070] FIG38 is a perspective view of a rod body in a fourth embodiment of the steering device provided by the present application;

[0071] FIG39 is a side view of the first embodiment of the electric luggage case provided by the present application;

[0072] FIG40 is a rear perspective view of the first embodiment of the electric luggage case provided by the present application;

[0073] FIG41 is a schematic diagram of the interior of the electric luggage case according to the first embodiment of the present application;

[0074] FIG42 is a perspective view of the front baffle of the first embodiment of the electric luggage case provided by the present application;

[0075] FIG43 is a perspective view of the first embodiment of the electric luggage case provided by the present application;

[0076] FIG44 is a schematic diagram of a use of a pull rod assembly in the first embodiment of the electric luggage case provided by the present application;

[0077] FIG45 is a schematic diagram of another use of the pull rod assembly in the first embodiment of the electric suitcase provided in this application.

[0078] Wherein: 10-first tube body, 101-quick release fastener, 102-bushing, 103-guide rod, 104-third cavity, 105-fourth cavity, 20-second tube body, 201-guide boss, 202-guide slot, 203-partition, 204-first cavity, 205-second cavity, 206-positioning member mounting seat, 207-elastic positioning pin, 208-fifth cavity, 30- Rod body, 301-pull rod handle, 302-elastic button, 303-push rod, 304-pressure piece, 3041-pressure seat, 3042-pressure block, 3043-cone block, 3044-waist-shaped hole, 3045-first sliding inclined surface, 305-positioning seat, 3051-upper seat body, 3052-lower seat body, 3053-cone block slide groove, 3054-positioning slightly mounting hole, 306-positioning slightly, 3061-pin seat, 3062-pin head, 3063-second sliding slope, 307-positioning hole, 308-button cap, 309-reset spring, 310-U-shaped clamp, 311-slot, 312-clip, 313-guide slider, 40-steering handle, 401-control component, 402-signal transmission line, 403-signal transmission spring, 404-signal transmission board, 405-plug Hole, 406-socket, 50-box, 501-opening, 502-front baffle, 503-groove, 60-front wheel, 70-controller, 80-slide rail, 90-telescopic rod, 110-rear wheel, 111-electric push rod, 112-battery, 113-battery slot, 114-speed control handle, 115-brake handle, 116-pedal, 117-power switch, 118-control switch. DETAILED DESCRIPTION

[0079] The following is a detailed description of the specific implementation methods of the present application in conjunction with the accompanying drawings, which does not limit the scope of protection of the present application. The terms "front", "back", "left", "right", "up", "down", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present application. The terms "first" and "second" are only used to simplify the textual description to distinguish similar objects, and cannot be understood as a precedence relationship between specific orders.

[0080] 3 , the present application provides a steering device, comprising a first tube body 10, a second tube body 20 disposed in the first tube body 10 and slidable relative to the first tube body 10, and a pull rod assembly disposed in the first tube body 10 or the second tube body 20 and slidable relative to the first tube body 10 or the second tube body 20.

[0081] The present application creatively integrates the tie rod assembly into the steering device. Compared with the structure and installation method of the existing traditional tie rod assembly, on the one hand, the overall size of the tie rod assembly is reduced, thereby reducing the space occupied by the tie rod assembly. On the other hand, due to the reduction in the overall size, the overall weight of the tie rod assembly is also greatly reduced, which can be more convenient for users' daily use and carrying, and can also meet the requirements of boarding when going out, greatly reducing production costs and simplifying the production and assembly process.

[0082] Referring to Figures 1 to 3, in a first embodiment, the second tube body 20 is a hollow tubular structure. The pull rod assembly includes a rod body 30 and a pull rod handle 301 mounted on the top of the rod body 30. The pull rod handle 301 is intended to be held by the user. The rod body 30 is inserted into the second tube body 20 and can slide relative to the second tube body 20. The pull rod assembly includes a positioning member for positioning and fixing the pull rod assembly. During use, the user can slide the rod body 30 relative to the second tube body 20 by holding the pull rod handle 301, while simultaneously manipulating the positioning member to position or unlock the rod body. In addition, the design of inserting the rod body 30 into the second tube body 20 can effectively protect the rod body 30 on the one hand, and improve the stability of the rod body 30 during sliding on the other hand.

[0083] Specifically, referring to Figures 11 to 19, the rod body 30 is a hollow tubular structure, and the positioning part includes an elastic button 302 arranged on the pull rod handle 301, a push rod 303 arranged inside the rod body 30 and connected to the elastic button 302, a pressure part 304 arranged at the bottom of the push rod 303, a positioning seat 305 arranged at the bottom of the rod body 30, and a positioning pin 306 arranged on the positioning seat 305 and abutting against the pressure part 304 to position or unlock the position. The second tube body 20 is provided with a positioning hole 307 adapted to the positioning pin 306.The elastic button 302 is composed of a button cap 308 and a return spring 309. The button cap 308 and the return spring 309 are both installed on the pull rod handle 301. After the user presses the button cap 308, the button cap 308 automatically rebounds and resets under the action of the return spring 309; the positioning seat 305 is fixedly installed at the bottom of the rod body 30, and the positioning seat 305 includes an upper seat body 3051 and a lower seat body 3052. In this embodiment, a U-shaped clamp 310 is used for fixing. The upper seat body 3051 is inserted into the interior of the rod body 30. The upper seat body 3051 and the rod body 30 are both provided with corresponding and connected card grooves 311. The U-shaped clamp 310 is provided with a buckle 311 corresponding to and adapted to the card groove 311. 305 is fixed to the cam 306 by inserting the buckle 312 into the slot 311. The detachable installation and fixing of the positioning seat 305 is achieved by inserting the buckle 312 into the slot 311. The detachable installation and fixing method not only ensures the firm connection of the positioning seat 305, but also facilitates installation and removal. The upper seat body 3051 and the lower seat body 3052 are both hollow structures and are internally connected. The pressing member 304 includes a pressing seat 3041 connected to the push rod 303, a pressing block 3042 inserted into the upper seat body 3051, and the pressing block 3042 is long and can slide relative to the upper seat body 3051. A cone block 3043 is provided on the side of the pressing block 3042, and a cone block slide groove 3053 adapted to the cone block 3043 is provided on the side of the upper seat body 3051. The cone block 3043 is provided on the side of the The pressing block 3042 is inserted into the conical block slot 3053 and can slide. The pressing block 3042 is also provided with a waist-shaped hole 3044. The deformation generated by the waist-shaped hole 3044 makes it easier for the conical block 3043 to be inserted into the conical block slot 3053. A return spring 309 is also provided between the pressing seat 3041 and the upper seat body 3051. The pressing seat 3041 slides under the action of the push rod 303 and automatically resets under the action of the return spring 309. The bottom of the pressing block 3042 is provided with a first sliding inclined surface 3045; the side of the lower seat body 3052 is provided with a positioning pin mounting hole 3054 for placing the positioning pin 306. The positioning pin 306 can slide in the positioning pin mounting hole 3054. The positioning pin mounting hole 3054 is connected to the interior of the lower seat body 3052 and the upper seat body 3051, and the positioning pin 306 includes a pin seat 3061 and a pin head 3062. The pin seat 3061 is recessed and provided with a second sliding inclined surface 3063 that is adapted to the first sliding inclined surface 3045. The pin head 3062 is arranged at the end of the pin seat 3061 facing outward, and the end of the pin seat 3061 facing inward is provided with a reset spring 309. The first sliding inclined surface 3045 abuts against the second sliding inclined surface 3063. The pin seat 3061 slides under the action of the first sliding inclined surface 3045 and the second sliding inclined surface 3063, and drives the pin head 3062 to slide, and automatically resets under the action of the reset spring 309.During use, the user presses the button cap 308, and the button cap 308 drives the pressing member 304 to be pressed down through the push rod. The pressing member 304 drives the pin seat 3061 to slide through the first sliding slope 3045, and then drives the pin head 3062 to exit the positioning hole 307. At this time, the lock can be unlocked and the entire pull rod assembly can be slid. When the user releases the button cap 308, the pin head 3062 automatically resets to the corresponding positioning hole 307 under the action of the reset spring 309, and the entire pull rod assembly can be locked and fixed.

[0084] Specifically, referring to Figures 7 to 10, the inner wall of the second tube body 20 is provided with a guide boss 201, and the outer wall of the rod body 30 is provided with a guide groove 202 adapted to the guide boss 201. The guide boss 201 provides sliding guidance for the rod body 30 by being inserted into the guide groove 202.

[0085] Specifically, referring to Figure 6, a steering handle 40 and a control component 401 are provided on the top of the second tube body 20. The control component 401 is a controller controlled by a controller, such as a speed control handle and a brake handle for controlling an electric suitcase. The steering handle 40 is hollow inside and communicates with the interior of the second tube body 20. The control component 401 is connected to a signal transmission line 402, which is provided inside the steering handle 40 and the second tube body 20.

[0086] 20 to 25 , the present application provides two signal transmission methods. The first method is: the signal transmission line 402 adopts a spring wire structure, one end of the signal transmission line 402 is connected to the control component 401, and the other end passes through the steering handle 40 and the inside of the second tube 20 and is externally connected to the controller; the second method is: one end of the signal transmission line 402 is connected to the control component 401, and the other end passes through the steering handle 40 and the inside of the second tube 20 and is connected to a signal transmission spring 403, the signal transmission spring 403 is fixed to the outer wall of the second tube 20, the signal transmission line 402 passes through the second tube 20 and is connected to the signal transmission spring 403, and the inner wall of the first tube 10 is provided with a signal transmission board 404 adapted to the signal transmission spring 403. Optionally, the signal transmission board 404 is a PCBA board (also known as a Printed Circuit Board The signal transmission board 404 is arranged along the sliding direction of the second tube body 20 relative to the first tube body 10. The signal transmission spring 403 is abutted and connected to the signal transmission board 404, and the connection state is always maintained when the second tube body 20 slides relative to the first tube body 10. The signal transmission board 404 is connected to a signal transmission line and an external controller.

[0087] Specifically, referring to FIG10 , the interior of the second tube 20 is divided into a first cavity 204 and a second cavity 205 by a partition 203. The rod 30 is located in the first cavity 204, and the signal transmission line 402 is located in the second cavity 205. How to arrange it so that the rod 30 and the signal transmission line 402 do not interfere with each other? The steering handle 40 is provided with a socket 405 for the rod 30 to pass through, and a socket 406 adapted to the pull rod handle 301. The rod 30 is inserted into the second tube 20 by passing through the steering handle 40, which can minimize the space occupied by the rod 30 and the pull rod handle 301. At the same time, the socket 406 adapted to the pull rod handle 301 can improve the overall flatness of the steering handle 40, making it more simple and beautiful.

[0088] Specifically, referring to Figures 4 and 5, a quick-release fastener 101 is provided on the upper part of the first tube body 10, and the second tube body 20 is inserted into the first tube body 10 and positioned and fixed by the quick-release fastener 101. The quick-release fastener 101 has the advantages of simple structure, easy use and high fastening strength, and can effectively fasten the first tube body 10 and the second tube body 20; a bushing 102 is provided at the connection between the first tube body 10 and the second tube body 20, and the bushing 102 is inserted into the first tube body 10, and the second tube body 20 is inserted into the bushing 102 and extends into the first tube body 10. The bushing 102 can effectively fill the gap between the first tube body 10 and the second tube body 20, thereby making it more secure when positioned and fixed; a guide groove 202 is provided on the outer wall of the second tube body 20, and the first tube body 10 is provided with a guide rod 103 adapted to the guide groove 202. The guide rod 103 is inserted into the guide groove 202 to provide a sliding guide for the second tube body 20.

[0089] Referring to Figure 26, in the second embodiment, the pull rod assembly includes a rod body 30 and a pull rod handle 301 installed on the top of the rod body 30, a guide groove 202 is provided on the side of the second tube body 20, and the rod body 30 is provided with a guide slider 313 adapted to the guide groove 202. The rod body 30 is inserted into the guide groove 202 through the guide slider 313 to slide relative to the second tube body 20, and the rod body 30 is inserted into the first tube body 10 together with the second tube body 20.

[0090] Specifically, referring to Figures 27 to 31, the steering device also includes a positioning member for positioning and fixing the pull rod assembly. The positioning member includes a positioning member mounting seat 206 installed on the second tube body 20 and an elastic positioning pin 207 installed on the positioning member mounting seat 206. The rod body 30 is provided with a positioning hole 307 adapted to the elastic positioning pin 207. The pull rod assembly is inserted into the positioning hole 307 by the elastic positioning pin 207 to achieve positioning and fixing. The user manually pulls the elastic positioning pin 207 to disengage it from the positioning hole 307, and then slides the rod body 30. When the user releases the elastic positioning pin 207, the elastic positioning pin 207 automatically falls into the corresponding positioning hole 307 to achieve positioning and fixing.

[0091] In this embodiment, the positioning and fixing method between the second tube body 20 and the first tube body 10 can adopt the method of using the quick release fastener 101 in the first embodiment, or the positioning and fixing method between the rod body 30 and the second tube body 20 in the first embodiment, which will not be repeated in this embodiment.

[0092] Referring to Figures 32 and 33, in the third embodiment, the pull rod assembly includes a rod body 30 and a pull rod handle 301 installed on the top of the rod body 30, the first tube body 10 includes a third cavity 104 and a fourth cavity 105, the second tube body 20 is arranged in the third cavity 104, and the rod body 30 is arranged in the fourth cavity 105.

[0093] Specifically, referring to Figure 34, the third cavity 104 and the fourth cavity 105 are both provided with a guide groove 202, and the second tube body 20 and the rod body 30 are both provided with a guide slider 313 adapted to the guide groove 202. The second tube body 20 and the rod body 30 are both inserted into the guide groove 202 through the guide slider 313 to achieve sliding relative to the first tube body 10.

[0094] Specifically, referring to Figure 35, the steering device also includes a positioning member for positioning and fixing the pull rod assembly, the positioning member includes an elastic positioning pin 207 installed on the rod body 30, the first tube body 10 is provided with a positioning hole 307 adapted to the elastic positioning pin 207, and the pull rod assembly is positioned and fixed by inserting the elastic positioning pin 207 into the positioning hole 307. The user manually presses the elastic positioning pin 207 to disengage it from the positioning hole 307, and then slides the rod body 30. When the user releases the elastic positioning pin 207, the elastic positioning pin 207 automatically falls into the corresponding positioning hole 307 to achieve positioning and fixation.

[0095] In this embodiment, the positioning and fixing method between the second tube body 20 and the first tube body 10 can adopt the method of using the quick release fastener 101 in the first embodiment, or the positioning and fixing method between the rod body 30 and the second tube body 20 in the first embodiment, which will not be repeated in this embodiment.

[0096] 36 and 37 , in the fourth embodiment, the pull rod assembly includes a rod body 30 and a pull rod handle 301 mounted on the top of the rod body 30 , the second tube body 20 includes a fifth cavity 208 , the rod body 30 is disposed in the fifth cavity 208 and can slide relative to the second tube body 20 .

[0097] Specifically, referring to Figure 38, the fifth cavity 208 is provided with a guide groove 202, and the rod body 30 is provided with a guide slider 313 adapted to the guide groove 202. The pull rod assembly is inserted into the guide groove 202 through the guide slider 313 to slide relative to the second tube body 20.

[0098] Specifically, the steering device also includes a positioning member for positioning and fixing the pull rod assembly. The rod body is a hollow tubular structure. The positioning member includes an elastic button arranged on the pull rod handle, a push rod arranged inside the rod body and connected to the elastic button, a pressure member arranged at the bottom of the push rod, a positioning seat arranged at the bottom of the rod body, and a positioning pin arranged on the positioning seat and abutting against the pressure member to position or unlock the position. The second tube body is provided with a positioning hole adapted to the positioning pin. The specific structure and installation method are the same as the rod body 30 in the first embodiment, and will not be repeated in this embodiment.

[0099] In this embodiment, the positioning and fixing method between the second tube body 20 and the first tube body 10 can adopt the method of using the quick release fastener 101 in the first embodiment, or the positioning and fixing method between the rod body 30 and the second tube body 20 in the first embodiment, which will not be repeated in this embodiment.

[0100] Referring to FIG. 39 , the present application further provides an electric suitcase, comprising a rideable suitcase body 50 and the aforementioned steering device for controlling the steering of the electric suitcase.

[0101] 39 and 41 , in a first embodiment, a front wheel 60 is mounted at the bottom of the first tube 10. The first tube 10 drives the front wheel 60 to rotate to achieve steering of the electric luggage case. The case includes a controller 70, a slide rail 80 fixed to the interior of the case 50, and a telescopic rod 90 mounted on the slide rail 80 and slidable along the slide rail 80 to protrude from the case 50. The telescopic rod 90 is rotatably connected to the first tube 10. The telescopic rod 90 is a hollow tubular structure and communicates with the first tube. A signal transmission line of the control component 401 passes through the telescopic rod 90 into the interior of the case 50 and is connected to the controller 70. A rear wheel 110 is provided at the rear side of the bottom of the case 50. The front wheel 60 and / or the rear wheel 110 utilizes a hub motor wheel for driving the electric luggage case to move. An electric push rod 111 is provided inside the case 50. One end of the electric push rod 111 is fixed to the case 50, and the other end is connected to the telescopic rod 90. The telescopic rod 90 is electrically extended and retracted under the drive of the electric push rod 111.

[0102] Referring to Figure 40, a battery 112 and a battery slot 113 are provided at the rear of the box body 50. The battery 112 can be detachably installed in the battery slot 113. Through this design, when the battery is exhausted or damaged, the user can remove, replace or install the battery at any time, which greatly improves the convenience of user use; the control component 401 on the steering handle 40 is for controlling the speed control handle 114 and the brake handle 115 of the electric suitcase. The speed control handle 114 and the brake handle 115 are both connected to the controller 70 through the signal transmission line 402, and the hub motor wheel, the electric push rod 111 and the battery 112 are all connected to the controller 70.

[0103] The speed control knob 114 and the brake control knob 115 are both capable of circumferential rotation. Each knob is equipped with a thumb-activated force member. During use, the user's thumb presses the corresponding force member to cause the speed control knob 114 or the brake control knob 115 to rotate circumferentially, thereby adjusting the speed and electronically braking the electric luggage case. The speed controller of the speed control knob 114 is a potentiometer or a Hall effect sensor.

[0104] Referring to Figures 42 and 43 , the front of the case 50 is provided with an opening 501, mounted on a front baffle 502. The front baffle 502 has a socket 405 through which the telescopic rod 90 passes. The slide rail 80 is integrally formed with the front baffle 502 and communicates with the socket 405. A groove 503 is defined at the bottom of the front baffle 502, which fits within the front wheel 60. When the telescopic rod 90 is retracted, the front wheel 60 is positioned within the groove 503. This design effectively protects the front baffle 502 from splashes of dirty water and dust generated by the rolling front wheel 60. Furthermore, the groove 503 facilitates the storage of the front wheel 60, reducing the space occupied by the entire electric luggage case and enhancing its overall aesthetics.

[0105] Pedals 116 are provided on both sides of the front wheel 60 to provide support for the user's feet during riding, improving riding comfort. A power switch 117 and a control switch 118 for controlling the extension and retraction of the telescopic rod are provided on the side of the box body 50. Both the power switch 117 and the control switch 118 are connected to the controller 70. This design enables automatic control of the electric luggage case, greatly improving the user experience.

[0106] In a second embodiment, the steering device passes through the top wall of the box 50 and is connected to the front wheel 60, as provided in Chinese patent application No. 201920396170.4, which will not be repeated in this embodiment.

[0107] 44 and 45 , when the electric luggage case provided in the present application uses the pull rod assembly, the rod body 30 is pulled out and positioned by manipulating the positioning member, and then the electric luggage case can be pulled forward or dragged backward.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the present application and are not intended to limit the technical solutions described in the present application. Therefore, although this specification has described the present application in detail with reference to the above embodiments, a person skilled in the art should understand that the present application can still be modified or replaced by equivalents. All technical solutions and improvements that do not depart from the spirit and scope of the present application should be included in the scope of the claims of the present application.

Claims

1. A steering device, characterized in that: The invention comprises a first tube body, a second tube body arranged in the first tube body and capable of sliding relative to the first tube body, and a pull rod assembly arranged in the first tube body or the second tube body and capable of sliding relative to the first tube body or the second tube body.

2. The steering device according to claim 1, characterized in that The second tube body is a hollow tubular structure. The pull rod assembly includes a rod body and a pull rod handle installed on the top of the rod body. The rod body is inserted into the second tube body and can slide relative to the second tube body. The pull rod assembly includes a positioning piece for positioning and fixing the pull rod assembly.

3. The steering device according to claim 2, characterized in that The rod body is a hollow tubular structure, and the positioning part includes an elastic button arranged on the pull rod handle, a push rod arranged inside the rod body and connected to the elastic button, a pressure part arranged at the bottom of the push rod, a positioning seat arranged at the bottom of the rod body, and a positioning pin arranged on the positioning seat and abutting against the pressure part to position or unlock the position. The second tube body is provided with a positioning hole adapted to the positioning pin.

4. The steering device according to claim 2, characterized in that The inner wall of the second tube body is provided with a guide boss, and the outer wall of the rod body is provided with a guide slot adapted to the guide boss. The guide boss provides sliding guidance for the rod body by being inserted into the guide slot.

5. The steering device according to claim 2, characterized in that: A steering handle and a control component arranged on the steering handle are provided on the top of the second tube body. The steering handle is hollow and communicates with the interior of the second tube body. The control component is connected to a signal transmission line, which is arranged inside the steering handle and the second tube body.

6. The steering device according to claim 5, characterized in that The signal transmission line adopts a spring line structure, one end of the signal transmission line is connected to the control component, and the other end passes through the steering handle and the inside of the second tube body and is externally connected to the controller.

7. The steering device according to claim 5, characterized in that One end of the signal transmission line is connected to the control component, and the other end passes through the steering handle and the inside of the second tube body and is connected to a signal transmission spring. The signal transmission spring is installed and fixed to the outer wall of the second tube body. The signal transmission line passes through the second tube body and is connected to the signal transmission spring. The inner wall of the first tube body is provided with a signal transmission plate adapted to the signal transmission spring. The signal transmission plate is arranged along the sliding direction of the second tube body relative to the first tube body. The signal transmission spring is in contact with the signal transmission plate and always remains connected when the second tube body slides relative to the first tube body. The signal transmission board is connected to the signal transmission line and an external controller.

8. The steering device according to claim 5, characterized in that The interior of the second tube is divided into a first cavity and a second cavity by a partition, the rod is located in the first cavity, and the signal transmission line is located in the second cavity.

9. The steering device according to claim 5, characterized in that The steering handle is provided with a plug hole for the rod body to pass through, and a socket adapted to the pull rod handle.

10. The steering device according to claim 2, characterized in that A quick-release fastener is provided on the upper portion of the first tube body, and the second tube body is inserted into the first tube body and positioned and fixed by the quick-release fastener.

11. The steering device according to claim 10, characterized in that: A bushing is provided at the connection between the first tube body and the second tube body. The bushing is inserted into the first tube body, and the second tube body is inserted into the bushing and extends into the first tube body.

12. The steering device according to claim 2, characterized in that: The outer side wall of the second tube body is provided with a guide slot, and the first tube body is provided with a guide rod adapted to the guide slot. The guide rod is inserted into the guide slot to provide sliding guidance for the second tube body.

13. The steering device according to claim 1, characterized in that The pull rod assembly includes a rod body and a pull rod handle installed on the top of the rod body. A guide groove is provided on the side of the second tube body. The rod body is provided with a guide slider adapted to the guide groove. The rod body is inserted into the guide groove through the guide slider to slide relative to the second tube body.

14. The steering device according to claim 13, characterized in that The steering device also includes a positioning member for positioning and fixing the pull rod assembly. The positioning member includes a positioning member mounting seat installed on the second tube body and an elastic positioning pin installed on the positioning member mounting seat. The rod body is provided with a positioning hole adapted to the elastic positioning pin. The pull rod assembly is positioned and fixed by inserting the elastic positioning pin into the positioning hole.

15. The steering device according to claim 1, characterized in that The pull rod assembly includes a rod body and a pull rod handle installed on the top of the rod body. The first tube body includes a third cavity and a fourth cavity. The second tube body is arranged in the third cavity. The rod body is arranged in the fourth cavity.

16. The steering device according to claim 15, characterized in that The third cavity and the fourth cavity are both provided with guide grooves, and the second tube body and the rod body are both provided with guide sliders adapted to the guide grooves. The second tube body and the rod body are both inserted into the guide grooves through the guide sliders to slide relative to the first tube body.

17. The steering device according to claim 15, characterized in that The steering device also includes a positioning member for positioning and fixing the pull rod assembly. The positioning member includes an elastic positioning pin installed on the rod body. The first tube body is provided with a positioning hole adapted to the elastic positioning pin. The pull rod assembly is positioned and fixed by inserting the elastic positioning pin into the positioning hole.

18. The steering device according to claim 1, characterized in that The pull rod assembly includes a rod body and a pull rod handle installed on the top of the rod body. The second tube body includes a fifth cavity. The rod body is arranged in the fifth cavity and can slide relative to the second tube body.

19. The steering device according to claim 18, characterized in that The fifth cavity is provided with a guide slot, the rod body is provided with a guide slider adapted to the guide slot, and the pull rod assembly is inserted into the guide slot through the guide slider to achieve sliding relative to the second tube body.

20. The steering device according to claim 18, characterized in that The steering device also includes a positioning member for positioning and fixing the pull rod assembly. The rod body is a hollow tubular structure. The positioning member includes an elastic button arranged on the pull rod handle, a push rod arranged inside the rod body and connected to the elastic button, a pressure member arranged at the bottom of the push rod, a positioning seat arranged at the bottom of the rod body, a positioning pin arranged on the positioning seat and abutting against the pressure member to position or unlock the position, and the second tube body is provided with a positioning hole adapted to the positioning pin.

21. An electric luggage box, characterized in that: The invention comprises a saddle-able box and a steering device according to any one of claims 1 to 20.

22. The electric luggage case according to claim 21, wherein: A front wheel is installed at the bottom of the first tube body. The box body includes a controller, a slide rail fixed inside the box body, and a telescopic rod installed on the slide rail and capable of sliding along the slide rail and protruding out of the box body. The telescopic rod is rotatably connected to the first tube body. The telescopic rod is a hollow tubular structure and is connected to the first tube body. The signal transmission line of the control component passes through the telescopic rod and is connected to the controller.

23. The electric luggage case according to claim 22, wherein: An electric push rod is provided inside the box body, one end of the electric push rod is fixed to the box body, and the other end is connected to the telescopic rod. The telescopic rod is electrically extended and retracted under the drive of the electric push rod.

24. The electric luggage case according to claim 21, wherein: The steering device passes through the top wall of the box body and is connected with the front wheel.

25. The electric luggage case according to claim 21, wherein: A battery and a battery slot are provided at the rear of the box body, and the battery is detachably installed in the battery slot.

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