CN110254581B

CN110254581B - Electric suitcase capable of riding

Info

Publication number: CN110254581B
Application number: CN201910538461.7A
Authority: CN
Inventors: 顾国兴; 秦斐
Original assignee: Changzhou Shuan Vehicle Co ltd
Current assignee: Changzhou Shuan Vehicle Co ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2024-04-05
Anticipated expiration: 2039-06-20
Also published as: CN110254581A

Abstract

The invention relates to an electric traveling case, in particular to a riding electric traveling case, which aims to solve the problems that the available space is small, the steering is easy to turn over and the user experience is poor in the existing electric traveling case, and the riding electric traveling case comprises a case body for a user to ride and sit on, a front wheel and a rear wheel for supporting the case body to travel, wherein the front wheel is arranged on a front fork device, a swing arm mechanism is arranged on the case body, the front fork device is arranged on the swing arm mechanism, the swing arm mechanism is driven by a driver to rotate and fold, and the front fork device positioned in the traveling direction of the case body is rotated and folded to the side surface of the case body.

Description

Electric suitcase capable of riding

Technical Field

The invention relates to an electric suitcase, in particular to a ridable electric suitcase.

Background

The current chinese patent number is CN 208550268U, discloses an electric suitcase, and this electric suitcase has three problems:

1. the handlebar is telescopic, has increased the sleeve in the box in order to realize the extension, leads to taking up the box volume too big to the space that the user can place the article has been reduced.

2. The rear wheels are two, but the thickness of the box body is too small, namely the distance between the axes of the two wheels is too short, so that the problem is not great when the vehicle is in straight line walking, but the vehicle is easy to turn on one's side when turning, especially in sharp turning.

3. The pedal is installed on the front fork, and the front fork drives the pedal to rotate together when turning to, can appear turning to the difficulty when being used for the foot to step on or the user must lift the foot when turning to, and user experience is poor.

Simply said is that current electronic traveling case has the available space little, turns to easy problem of turning on one's side and user experience is poor when driving.

Disclosure of Invention

The invention aims to solve the technical problems that: in order to solve the problems that the existing electric traveling case has small available space, is easy to turn on one's side when traveling and has poor user experience, the electric traveling case capable of riding is provided.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides an electric traveling case can ride, includes the box that can supply the user to ride, supports front wheel and the rear wheel that the box marched, the front wheel is installed on the front fork device, the box on install swing arm mechanism, the front fork device is installed on swing arm mechanism, swing arm mechanism carries out rotatory folding under the drive of driver, will be located the side of the rotatory folding to the box of front fork device of box advancing direction.

In order to facilitate the use, the swing arm mechanism is driven by the driver to perform the lifting motion while performing the rotating motion, and the front wheel is lifted off the ground while rotating and folding the front fork device to the side surface of the box body.

Further, the swing arm mechanism comprises a swing arm, a rotating shaft device and a driver, wherein the driver is a motor, the swing arm is installed on the box body through the rotating shaft device, the driver drives the swing arm to rotate around the rotating shaft of the rotating shaft device, and the rotating shaft device is provided with a spiral guide mechanism for enabling the swing arm to be lifted in a spiral mode under the guide of the spiral guide mechanism.

Further, the rotating shaft device specifically comprises a shell and a screw rod which is installed through the shell and serves as a rotating shaft of the swing arm, the swing arm is matched with the screw rod through a screw structure, the screw rod is driven to rotate by a driver, a spiral guide mechanism is arranged on the shell, and the swing arm is spirally lifted under the driving of the screw rod and the guide action of the spiral guide mechanism.

Preferably, the rotating shaft device further comprises pressure-resistant rubber, wherein the pressure-resistant rubber is sleeved at the upper end and the lower end of the screw rod and used for restraining the ascending stroke and the descending stroke of the swing arm.

In order to facilitate steering of the vehicle armrest, the upper part of the front fork device is provided with the vehicle armrest, the vehicle armrest is connected with the lower part of the front fork device through a telescopic pull rod structure, the telescopic pull rod structure comprises an upper pull rod and a lower pull rod, the vehicle armrest is fixed on the upper pull rod, the lower pull rod is connected with the lower part of the front fork device, the upper pull rod is telescopically and rotatably penetrated into the lower pull rod, the upper end of the lower pull rod is provided with a slot, the upper part of the slot is provided with a clamp structure, the telescopic positions of the lower pull rod and the upper pull rod are locked, a rotary locking structure is arranged between the upper pull rod and the lower pull rod, the rotary locking structure comprises an upper clamping piece, a lower clamping piece, a spring and an upper blocking piece, the upper clamping piece, the lower clamping piece, the spring and the spring limiting piece are sleeved at the lower end of the upper pull rod from top to bottom, the upper clamping piece, the lower clamping piece and the lower clamping piece are fixedly connected with the upper pull rod, the upper clamping piece and the lower clamping piece are in rotatable fit, the adjacent end faces of the upper clamping piece and the lower clamping piece are provided with a matched convex head and a groove, the clamp is used for locking the upper clamping piece and the lower clamping piece in a 90-degree rotation state after the vehicle armrest is locked, the telescopic position of the lower pull rod and the upper clamping piece and the lower clamping piece is provided with an inner hole of the upper clamping piece and the upper clamping piece and the clamping piece is provided with an upper clamping piece and a large stop piece.

In order to facilitate user's foot rest, the swing arm on be provided with pedal structure, pedal structure includes pedal and unlocking lever, the pedal articulates in the swing arm left and right sides, pedal is rotatory folding in the swing arm left and right sides through pedal elasticity reset piece, the unlocking lever is installed in the swing arm inner chamber, the front end of unlocking lever has the locking frid, the left and right sides of locking frid has the locking groove, the unlocking lever is through the reset elastic component of keeping in the middle and restoring to the middle, the rear end of unlocking lever stretches out the swing arm, the unlocking lever is kept stretching out the state through the reset elastic component of unblock, rotate to the open state at the swing arm, the rear end of unlocking lever is pushed forward by the box, the unlocking lever overcomes the elastic effect that the reset elastic component of unblock drives the locking frid and shifts forward to the locked position, the inner of pedal of swing arm one side is through the locking groove of the mode embedding of the reset elastic component of promoting the centering bias opposite side, realize the locking to the pedal, when the swing arm is rotatory folding, the rear end of unlocking lever breaks away from the effect of box, the reset elastic component promotes the reset of unlocking lever and stretches out, the locking frid backward moves to the inner of pedal.

Further, the unlocking reset elastic piece is a spiral spring and is positioned in front of the locking groove plate, the centering reset elastic piece comprises a sleeve and arched elastic pieces on the left side and the right side of the sleeve, the centering reset elastic piece is sleeved on the unlocking rod through the sleeve, and the tops of the arched elastic pieces act on the left side and the right side of the inner cavity of the swing arm; the pedal structure is characterized in that pedal grooves are formed in the swing arms, the pedals on the left side and the right side of the swing arms are matched with auxiliary pedals and connecting rods to form pedal frames, the inner ends of the auxiliary pedals are hinged to the swing arms, the two ends of the connecting rods are hinged to the outer ends of the auxiliary pedals and the matched pedals, the pedal frames and the swing arms form a parallel four-bar mechanism, the pedal frames can be rotationally folded to be in a straight line state to enter the pedal grooves, the swing arms are L-shaped and comprise long vertical sections and short vertical sections, the rear ends of the short vertical sections are matched with screw rods, the front ends of the long vertical sections are connected with front fork devices, pedal structures are arranged in the long vertical sections, and the rear ends of unlocking rods penetrate out from the rear ends of the long vertical sections.

In order to reliably lock the front fork device, the side face of the box body is provided with a front fork embedding groove, two sides of an inlet of the front fork embedding groove are provided with spring bolts which are elastically telescopic, the two spring bolts are arranged in a matched mode and extend from top to bottom to shield the inlet of the front fork embedding groove, the two spring bolts are located above the two spring bolts relative to the swing arm, the front face of the spring bolt is an inner inclined face for enabling the front fork device to push away the spring bolts through the inclined face to enter the front fork embedding groove, the upper section of the back face of the spring bolt is a flat face for locking the front fork device embedded in the front fork embedding groove, and the lower section of the back face of the spring bolt is an outer inclined face for pushing away the spring bolts from bottom to top through the outer inclined face when the swing arm drives the front fork device to swing outwards.

Preferably, the upper section of the side surface of the lock tongue is a vertical surface, the lower section is an inclined surface, a gap which gradually expands from top to bottom is formed at the lower section of the lock tongue when the two lock tongues are closed, the upper section and the lower section of the back surface of the lock tongue are in transition through the inclined surface, and the concrete structure of the elastic telescopic installation of the lock tongue is as follows: the front fork embedding groove has the spring bolt mounting groove in the entry both sides, and the spring bolt is installed in this mounting groove, has the spring bolt spring in the mounting groove for promote spring bolt elasticity flexible.

Further, the rotating shaft device of the swing arm mechanism further comprises a stay wire power nut and a linear guide structure, the stay wire power nut is sleeved on the screw rod, the stay wire power nut moves linearly under the drive of the screw rod and the guide of the linear guide structure, the stay wire power nut is connected with the stay wire, and power is output outwards through the stay wire.

Specifically, the straight line guide structure specifically be the draw-in groove that sets up on the inner wall of shell, the bulge of concrete embedding draw-in groove on the power nut of acting as go-between, the power nut of acting as go-between be close to the swing arm setting, set up elastic rubber between power nut and the swing arm of acting as go-between, elastic rubber cover is established on the lead screw.

For convenient control, the rear wheel of the bottom of box include pulley and rear riding wheel, rear riding wheel installs and receive and releases on rear wheel receive and releases the device, rear riding wheel after opening and front wheel lift the box pulley off ground together.

Preferably, the rear riding wheel retraction device is used for retracting the rear riding wheel in a mode of rotating from a horizontal retraction state to a vertical opening state, the rear riding wheel retraction device is rotated to be opened under the action of a stay wire and rotated to be reset under the action of a reset tension spring, and the stay wire is powered by the swing arm mechanism.

Specifically, the rear riding wheel winding and unwinding device comprises a rear wheel support, a stay wire and a reset tension spring, wherein the rear riding wheel is arranged on the rear wheel support, the rear wheel support is rotatably arranged on the box body through a rotating shaft, and the rear wheel support is rotated to a vertical opening state from a horizontal winding state under the action of the stay wire and is rotated to reset under the action of the reset tension spring.

Or, rear wheel receive and release device include the rear wheel support, act as go-between, extension spring and drive connecting rod structure, the rear wheel of riding is installed on the rear wheel support, the rear wheel support rotationally installs on the box through the pivot, the extension spring is rotated to vertical open state by the horizontal state of packing up through drive connecting rod drive rear wheel support, the extension spring that resets is acted on rear wheel support or drive connecting rod and is rotated the rear wheel support that resets, drive connecting rod structure includes rocker and connecting rod, the one end of rocker articulates on the box, the other end of rocker articulates with the one end of connecting rod, the other end of connecting rod articulates with the rear wheel support, rocker, connecting rod and rear wheel support constitute rocker mechanism, one side or both sides of rocker have the drive end that stretches out, act as respectively on the drive end, drive rocker swings, the swing drive rear wheel support rotation of rocker packs up and opens, when the drive rear wheel support of acting as go-between is opened to vertical state, the rocker is spacing and rocker and connecting rod cross both collinear position for forming the dead effect to the rear wheel support.

Further, the number of the rear riding wheels is one, the rear riding wheels are retracted and extended in a left-right rotating mode by the rear wheel retraction device, two sides of the rocking bar are provided with extended driving ends, a stay wire and a reset tension spring are respectively connected with the two driving ends of the rocking bar, and the stay wire drives the rear wheel bracket to be vertically opened in a mode of upwards pulling the driving ends; or, the number of the rear riding wheels is two, the rear riding wheels are respectively positioned on two sides of the box body, the rear wheel retraction device is used for retracting the rear riding wheels in a mode of rotating towards the inner side direction of the box body, the two rear wheel retraction devices are identical in structure and are symmetrically arranged, the rocker is provided with a driving end extending inwards, the pull wire and the reset tension spring act on the driving end, and the pull wire drives the rear wheel support to be vertically opened in a mode of upwards pulling the driving end.

The electric suitcase capable of riding has the advantages that the swing arm is unfolded to become the suitcase capable of riding by people, the swing arm is of an L shape, is attached to the outer wall of the suitcase body when the swing arm is folded, does not occupy the inner space of the suitcase body, is folded in a lateral overturning manner when the diameter of the rear wheel is large, occupies a small volume of the suitcase body, is single, is in a whole electric suitcase in an electric bicycle mode, does not have the problem that the axle distance is too short to turn and rollover, or increases the axle distance between the rear two wheels to improve the stability of the over-bending, and is internally provided with pedals in the swing arm, so that the pedal is convenient for a user to put a foot on, the steering is not influenced during riding, and the electric suitcase has the characteristics of stable running, stable over-bending and comfort in operation.

Drawings

The invention will be further described with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a swing arm mechanism according to an embodiment of the present invention.

Fig. 3 is a schematic view illustrating an internal structure of fig. 2 according to a first embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an L-shaped swing arm according to an embodiment of the present invention.

Fig. 5 is a front-rear retractable view of a rear riding wheel according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 7 is a schematic structural view of a swing arm mechanism with an unlocking lever according to a third embodiment of the present invention.

Fig. 8 is an enlarged view at B in fig. 7.

Fig. 9 is a cross-sectional view of a three-swing arm of an embodiment of the invention.

FIG. 10 is an expanded view of a three foot pedal configuration in accordance with an embodiment of the present invention.

FIG. 11 is a schematic illustration of a three-strap pedal structure ridable electric suitcase in accordance with an embodiment of the present invention.

Fig. 12 is a drawing of a tie rod structure according to a fourth embodiment of the present invention.

Fig. 13 is a cross-sectional view of the four-bar linkage of the embodiment of the present invention as it is pulled out.

Fig. 14 is a cross-sectional view of the four-bar linkage of the embodiment of the present invention in a riding condition.

Fig. 15 is a cross-sectional view of the four-bar linkage of the embodiment of the present invention in a non-riding condition.

Fig. 16 is an internal schematic view of a four-bar linkage according to an embodiment of the present invention.

Fig. 17 is a schematic structural diagram of a fork insertion groove according to a fifth embodiment of the present invention.

Fig. 18 is a cross-sectional view of a fork pocket in accordance with a fifth embodiment of the present invention.

Fig. 19 is a schematic view of a latch bolt according to a fifth embodiment of the present invention.

Fig. 20 is a diagram showing the matching relationship between a tongue and a front fork device in the fifth embodiment of the present invention.

Fig. 21 is a schematic side view of a single rear riding wheel according to a sixth embodiment of the present invention.

Fig. 22 is a schematic side view of a single rear riding wheel according to a sixth embodiment of the present invention.

Fig. 23 is a schematic side-folded structure of a single rear riding wheel according to a sixth embodiment of the present invention.

Fig. 24 is a schematic side view of a dual rear riding wheel according to a seventh embodiment of the present invention.

Fig. 25 is a schematic side-folded structure of a dual rear riding wheel according to a seventh embodiment of the present invention.

Fig. 26 is an enlarged view at a in fig. 25.

FIG. 27 is a physical view of a dual rear riding wheel of a seventh embodiment of the present invention after deployment.

In the figure: 100. the bicycle comprises a box body, a rear riding wheel, 102, a rotating shaft, 103, a first deflector rod, 104, a second deflector rod, 105, a third deflector rod, 106, a fourth deflector rod, 107, a fifth deflector rod, 108, a frame stay tube, 109, a bicycle body, 110, a rear wheel bracket, 111, a fixed fulcrum, 112, a shaft sleeve, 113, a reset tension spring, 114, a limiting structure, 115, pulleys and 116 and a hinge.

200. Swing arm mechanism, 201, lead screw, 202, upper cover plate, 203, elastic rubber, 204, lower cover plate, 205, lower nut, 206, upper nut, 207-1, upper bearing, 207-2, lower bearing, 208, stay wire sleeve, 209-1, upper pressure resistant rubber, 209-2, lower pressure resistant rubber, 210, stay wire power nut, 211, stay wire, 212, motor, 213, gear box, 214, side shell, 215, clamping groove, 216, spiral guiding mechanism, 217, swing arm, 218, front fork device, 219, front wheel, 220.

300. Pedal structure 301, unlocking return spring, 302, pedal frame 303, unlocking lever, 304, centering return spring, 305, top plate, 306, locking slot plate, 307, pedal spring return, 308, locking slot, 309, pedal, 310, connecting rod, 311, auxiliary pedal.

400. The pull rod structure, 401, an upper pull rod, 402, an upper clamping piece, 403, a lower pull rod, 404, an upper blocking piece, 405, a lower clamping piece, 406, a spring, 407, a spring limiting plate, 408, a vehicle armrest, 409, a limiting structure, 410, a clamp structure and 411.

500. Front fork embedded groove, 501, bolt mounting groove, 502, bolt spring, 503, bolt.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.

Example 1

As shown in fig. 1 to 5, a ridable electric suitcase is provided, a swing arm mechanism 200 is fixedly installed on an outer wall of a suitcase 100, a side shell 214 of the swing arm mechanism 200 is fixedly connected with the suitcase 100, the swing arm mechanism 200 drives a front fork device 218 to swing horizontally, the front fork device 218 can be lifted or put down while swinging, a front wheel 219 is installed on a front fork 220 of the front fork device 218, and a vehicle armrest 408 is installed at a top end of the front fork device 218.

The front wheel 219 is a driving wheel, and is driven by a brushless motor, the front wheel 219 is electrically connected with the controller through a wire, an electric door is arranged on the vehicle armrest 408 and is electrically connected with the controller through a wire, a signal is sent to the controller in a mode of screwing or unscrewing the electric door, and then the controller controls a battery to convey the current to the front wheel, so that speed regulation is realized, and no electric door is displayed in the figure.

As shown in fig. 2 and 3, which are schematic structural views of the swing arm mechanism 200, the swing arm mechanism 200 includes a swing arm 217, a rotation shaft device, and a driver, the driver being a motor 212, the swing arm 217 being mounted on the case 100 through the rotation shaft device, the driver driving the swing arm 217 to rotate around a screw rod as a rotation shaft, the rotation shaft device having a screw guide mechanism 216 thereon for causing the swing arm 217 to be lifted up by screw under the guide of the screw guide mechanism 216.

The swing arm mechanism 200 has the following specific structure: an output shaft of the motor 212 is fixedly connected with an input end of a gear box 213 and drives the gear box 213 to rotate when rotating, the gear box 213 is screwed on an upper cover plate 202, the upper cover plate 202 is a part of a shell, the shell consists of a side shell 214, an upper cover plate 202 and a lower cover plate 204 which are fixedly arranged at two ends of the side shell 214, an output end of the gear box 213 is fixedly connected with a screw rod 201, one to two upper nuts 206, an upper bearing 207-1, the upper cover plate 202, an upper pressure-resistant rubber 209-1, a stay wire power nut 210, elastic rubber 203, a swing arm 217, a lower pressure-resistant rubber 209-2, a lower cover plate 204, a lower bearing 207-2 and one to two lower nuts 205 are sequentially arranged on the screw rod 201 by taking the direction of the gear box 213 as a starting point; the outside of the screw rod 201 is provided with external threads and is respectively pressed into the upper cover plate 202 and the lower cover plate 204 through an upper bearing 207-1 and a lower bearing 207-2 to be fixedly supported with the side shell 214, continuous circular rotation movement can be realized, the side shell 214 is cylindrical, the side shell 214 is fixedly arranged between the upper cover plate 202 and the lower cover plate 204 through welding, clamping or bolt fixing, the side shell 214 and the box body 100 are fixedly connected through welding, gluing or clamping and the like, the side shell 214 is provided with a spiral guide mechanism 216 with a spiral 180 DEG, the rear section of the swing arm 217 extends into the spiral guide mechanism 216 and is matched with the screw rod 201, the spiral guide mechanism 216 is an arc chute, the arc angle is 180 DEG, the rear section of the swing arm 217 is clamped in a notch of the spiral guide mechanism 216 of the side shell 214, and when the screw rod 201 rotates, the swing arm 217 slowly swings up and down to move by 180 DEG horizontally; the inner wall of the side shell 214 is provided with a clamping groove 215, the length of the clamping groove 215 is the same as the height of the side shell 214, a protruding part of the stay wire power nut 210 is arranged in the clamping groove 215 in a sliding manner, a stay wire 211 is fixedly arranged in the protruding part of the stay wire power nut 210, in order to enable the swing arm 217 to smoothly complete 180-degree swing and tighten or loosen the stay wire 211 during swing, a copper nut is embedded into one end of the swing arm 217 to be matched with a thread on the screw rod 201 in a positive manner, an inner thread matched with the screw rod 201 is arranged in the middle of the stay wire power nut 210, the stay wire power nut 210 is matched with the screw rod 201 through the screw rod, the protruding part of the stay wire power nut 210 is clamped in the clamping groove 215 of the side shell 214 at the same time, the stay wire power nut 210 only moves vertically when the thread and the screw rod 201 is matched with the clamping groove 215, the stay wire 211 is fixed on the stay wire power nut 210 through a riveting iron method, and when the stay wire power nut 210 moves up and down, the stay wire 211 is forced to move up and down.

Further description of the effects of the components wherein:

the screw 201 and the swing arm 217 cooperate to convert the rotational power source of the motor 212 into up-and-down movement and horizontal swing of the swing arm 217.

The upper cover plate 202, the lower cover plate 204 and the side shells 214 together form an outer shell, and the upper cover plate 202 and the lower cover plate 204 serve to position the screw 201 in the side shells 214 and to transfer all bearing forces to the side shells 214.

The elastic rubber 203 is installed between the swing arm 217 and the stay wire power nut 210 and is compressed, for eliminating abnormal sound generated by the gap.

The lower nut 205 and the upper nut 206 are used to fix the screw 201 between the upper cover plate 202 and the lower cover plate 204, and the axial relative positions of the three are adjusted by rotating the lower nut 205 and/or the upper nut 206.

The upper bearing 207-1 and the lower bearing 207-2 eliminate frictional resistance of the swing arm 217 and the screw 201 when rotating with respect to the housing 214, and the wire sleeve 208 can bend the wire 211 at any angle and transmit force to the movable member.

The upper pressure-resistant rubber 209-1 and the lower pressure-resistant rubber 209-2 are made of high-density pressure-resistant wear-resistant materials, large reaction force and large friction force are generated after the upper pressure-resistant rubber 209-1 and the lower pressure-resistant rubber 209-2 are extruded and deformed when the mechanism moves, so that the motor 212 is amplified in current, a signal is obtained by the controller, when the swing arm 217 presses the upper pressure-resistant rubber 209-1 or the lower pressure-resistant rubber 209-2, the upper pressure-resistant rubber 209-1 or the lower pressure-resistant rubber 209-2 also acts on the swing arm 217 in a large reaction and a large friction force, the reaction force is transmitted to the motor 212 at the moment, the motor 212 is amplified in current, the controller reacts after induction, the power supply is disconnected, the power supply is stopped, the swing arm 217 enters a designated position and is in-situ, elastic rubber 203 is arranged between the swing arm 217 and the pull wire power nut 210, the elastic rubber 203 has enough compression stroke, the elastic rubber 203 is not destroyed by itself after the swing arm 217 rotates 180 degrees, the swing of the swing arm 217 is stopped, and the elasticity of about 50 newtons is generated, and noise and vibration generated by the gap between the pull wire power nut 210 and the swing arm 217 are eliminated.

The pull wire power nut 210 is a power source of the pull wire 211, and converts the power of the motor 212 into an up-down pulling force through the screw rod 201 to be transmitted to the pull wire 211.

The pull wire 211 is externally wrapped with a pull wire sleeve 208, the pull wire sleeve 208 plays a role in transmitting force, the pull wire 211 can be a steel wire product without a protective sleeve, or a pull wire with a protective sleeve and a pull wire with a sleeve with an oil lubricant is commercially available, the pull wire 211 without the protective sleeve is adopted in the drawing, so the sleeve plays a role in protecting the pull wire 211 at the joint, and the sleeve can be omitted when the pull wire with the protective sleeve is selected.

The motor 212 is the power source for the entire mechanism.

The housing 214 is the carrier of the entire mechanism.

The clamping groove 215 and the spiral guide mechanism 216 play a guiding role, so that the stay wire power nut 210 and the swing arm 217 move in a specified track, and when the stay wire power nut 210 moves to the stroke end point, the swing arm 217 swings 180 degrees.

The electric traveling case capable of riding as shown in fig. 4, wherein the swing arm 217 is connected with the front fork device 218, the swing arm 217 presents an 'L' -shape, the swing arm 217 comprises a long vertical section and a short vertical section, the rear end of the short vertical section is matched with the screw rod 201, and the front end of the long vertical section is connected with the front fork device 218.

As shown in fig. 5, a rear riding wheel retraction device is rotatably installed at the lower part of the box 100, the pull wire 211 pulls the rear riding wheel 101 in the rear riding wheel retraction device, the rear riding wheel 101 is convenient for the pulley 115 to push after being retracted, the movement interference of redundant wheels is avoided, the rear riding wheel 101 is put down, and the rear riding wheel 101 and the front wheel 219 which is put down simultaneously form a two-wheel electric vehicle, so that electric driving is realized.

The rear riding wheel 101 is arranged in the rear wheel bracket 110, the hinge 116 is formed by connecting two stamping parts in series through hinge pins, one stamping part is fixed on the box body 100, the other stamping part is fixed on the rear wheel bracket 110, the rotation of the hinge 116 drives the rear wheel bracket 110 to rotate around the hinge pins, the other end of the pull wire 211 led out of the swing arm mechanism 200 is fixed on the rear wheel bracket 110, and in order to achieve attractive wiring and prolonged service life of the pull wire 211, a sleeve is sleeved on the pull wire 211 or a sleeve is sleeved on a certain part to play a role in protecting the pull wire 211; one end of a reset tension spring 113 is fixed on the box body 100, so that the reset tension spring 113 is fixed and immovable, and the other end of the reset tension spring 113 is fixed on the rear wheel bracket 110; in order to prevent the pull wire 211 from breaking and causing the rear riding wheel 101 to be folded when riding, the rear riding wheel 101 is rotated and opened from front to back, the rear wheel support slightly rotates to the vertical position when being vertically opened, the bottom of the box body 100 is provided with a limiting structure 114, after the rear riding wheel 101 is unfolded, the rear wheel support 110 is propped against the limiting structure 114, a user sits on the box body 100 and is stressed on the limiting structure 114, even if the pull wire 211 breaks suddenly, the reset tension spring 113 cannot fold the rear riding wheel 101, no safety accident can occur, and the reset tension spring 113 can normally fold the rear riding wheel 101 after the user stands up.

The rear riding wheel 101 is changed from hanging to descending and advancing: when the front wheel 219 is driven by the swing arm mechanism 200 to gradually open the stay wire 211 for tightening, when the tension force of the stay wire 211 exceeds the elastic force of the automatic return and reset tension spring 113, the rear wheel support 110 swings backwards with the hinge pin as the axis until the rear wheel support is propped against the limit structure 114 of the box body 100, the rear riding wheel 101 is lifted and then is lifted down by 100mm from the ground, the front wheel 219 is correspondingly lifted down by 100mm at the moment, the front wheel 219 and the front wheel support form a set of two-wheel vehicle supported by the ground, and the front wheel 219 can electrically drive the front wheel to move forwards.

Stowing the rear riding wheel 101: when the swing arm mechanism 200 starts to rotate and retract, the pull wire 211 is loosened, the tension force on the rear wheel support 110 disappears, at the moment, the tension force of the reset tension spring 113 is larger than the tension force of the pull wire 211, the reset tension spring 113 pulls the rear wheel support 110 to swing forwards and return by taking the hinge pin as the axis until the tension force of the pull wire 211 completely disappears, the recovered rear riding wheel 101 is attached to the bottom end of the box body 100, namely the rear riding wheel 101 is retracted and suspended in place, and 100mm is lifted.

The whole working process of the electric suitcase comprises the following steps:

1. and (5) upstream stowing: after the motor 212 receives the instruction sent by the controller, the motor 212 is started, the head of the main shaft of the motor 212 is flat, a pinion is arranged, the motor 212 rotates clockwise to drive the pinion to rotate, the pinion passes through a three-stage reduction gearbox and finally is transmitted to the screw rod 201 to rotate, the stay wire power nut 210 and the swing arm 217 move upwards simultaneously under the drive of the screw rod 201, and the stay wire power nut 210 is forced to move upwards due to the limitation of the clamping groove 215 on the side shell 214 to drive the stay wire 211 to move upwards, and at the moment, the stay wire 211 in the stay wire sleeve 208 is loosened to enable the rear riding wheel 101 to be retracted and hidden. The travel of the pull wire power nut 210 in the side shell 214 without touching rubber is 0-95 mm, but the pull wire power nut rises to a position of 95mm, at this time, the screw rod 201 has a free travel greater than 5mm, the upper plane of the pull wire power nut 210 begins to contact with the upper pressure-resistant rubber 209-1, the motor 212 continues to drive, the upper plane of the pull wire power nut 210 begins to extrude the upper pressure-resistant rubber 209-1, the upper pressure-resistant rubber 209-1 generates a large reaction force and a large friction force after being pressed for 5mm, the motor 212 is sufficiently amplified, at this time, after the controller senses a current amplifying signal, the controller reacts, the switch is turned off, the current is cut off, the motor 212 stops rotating, and at the same time, the friction force enables all mechanisms to be stably immobilized in place, the whole preset screw rod 201 self travel of 100mm is completed, namely the pull wire power nut 210 and the swing arm 217 are both lifted by 100mm and the swing arm 217 swings horizontally by 180 degrees, while the swing arm 217 moves upwards under the drive of the screw rod 201, the swing arm 217 is forced to slowly swing 180 DEG in the horizontal direction under the guiding action of the screw guide mechanism 216 of the side shell 214, at this time, the gap between the pull wire power nut 210 and the swing arm 217 is slightly reduced, the elastic rubber 203 is arranged between the swing arm 217 and the pull wire power nut 210, enough compression stroke is provided, the elastic rubber 203 is not destroyed nor stops swinging of the swing arm 217 after the swing arm 217 rotates 180 DEG, and 50N elasticity is generated, the elastic rubber is used for eliminating noise and vibration generated in the gap between the pull wire power nut 210 and the swing arm 217, when the pull wire power nut 210 collides and presses the pressure-resistant rubber 209-1, and the screw rod 201 stops rotating, at this time, the swing arm 217 and the pull wire power nut 210 synchronously rise by 100mm and swing 180 DEG in the horizontal swing of the swing arm 217 are just completed, this automatically retracts the front fork assembly 218 into the front fork pocket 500 of the housing 100.

2. And (5) opening in a downlink mode: when the front fork 218 is in the retracted state, the swing arm 217 is positioned at the uppermost end of the spiral guide mechanism 216 on the side shell 214, when the motor 212 receives the instruction sent by the controller, the motor 212 rotates anticlockwise, the pinion is driven to rotate, the pinion passes through the three-stage reduction gearbox and finally is transmitted to the screw rod 201 to rotate, the motor 212 drives the swing arm 217 to move downwards, the stay wire power nut 210 and the swing arm 217 simultaneously move downwards under the driving of the screw rod 201, at the moment, the upper pressure-resistant rubber 209-1 contacted with the stay wire power nut 210 has 5mm compression, the 5mm compression is released firstly, after the completion, the stay wire power nut 210 and the swing arm 217 continue to move downwards, at the moment, the distance between the stay wire power nut 210 and the swing arm 217 is slightly increased, namely the elastic rubber 203 is slightly decreased, the swing of the swing arm 217 is not influenced, and the silencing function is kept, the stay wire power nut 210 is clamped in the clamping groove 215, the pull wire 211 is driven to move downwards by 100mm in a forced straight line, the pull wire 211 in the pull wire sleeve 208 is tightened, so that the rear riding wheel 101 is erected and contacts the ground to lift the suitcase by 60mm, the swing arm 217 swings in the horizontal opposite direction simultaneously under the action of the spiral guide mechanism 216 of the side shell 214, the lower pressure-resistant rubber 209-2 starts to be touched when the lower pressure-resistant rubber is 95mm downwards, the free stroke of the screw rod 201 is larger than 5mm, the lower plane of the swing arm 217 starts to be contacted with the lower pressure-resistant rubber 209-2, the motor 212 continues to drive, the lower plane of the swing arm 217 starts to be pressed with the lower pressure-resistant rubber 209-2, the lower pressure-resistant rubber 209-2 generates a large reaction force and a large friction force after being pressed by 5mm, the current of the motor 212 is amplified, the controller reacts after the current amplified signal is sensed, the switch is turned off, the current is cut off, the motor 212 stops rotating, the friction force keeps all the mechanisms stationary in place, the self-running stroke of the whole preset screw rod 201 is completed by 100mm, namely the purposes that the pull wire power nut 210 and the swing arm 217 are lowered by 100mm and the swing arm 217 swings 180 degrees horizontally in the opposite direction are completed, namely the front fork device 218 is separated from the front fork embedded groove 500 and turns 180 degrees horizontally, the front wheel 219 and the rear riding wheel 101 lift the suitcase integrally by 60mm, the front wheel and the rear wheel keep horizontal, and the riding state is completed.

The box 100 includes a body 109 with an internal frame structure, and the frame structure is sleeved or injection-molded with an openable outer cover, and the frame structure can be formed by welding metal materials vertically and horizontally, riveting plastic steel, inserting a hollow pipe and a connecting piece or integrally forming a high polymer material, wherein the frame structure is welded into a rectangular frame by adopting the metal materials; the package packing is usually a so-called soft package box body which is mainly made of wear-resistant materials such as canvas, flax or polyester fiber, and is fixed on a frame in a riveting, stitching or gluing mode, the injection molding piece packing is a so-called hard shell box body which is mainly made of polymer materials, memory metal materials or other composite materials which are not easy to damage, and the injection molding piece packing is arranged on the frame in a riveting, welding or gluing mode; the vehicle body 109 is mainly divided into two chambers, one for placing traveling baggage and the other for placing electric equipment, which are usually disposed one above the other in the lower portion of the vehicle body 109 for convenience in maintaining the center of gravity.

The electric equipment comprises a battery and a controller, wherein the battery is a chargeable battery, and can be a lead-acid battery or a lithium battery; the controller is the main control board of market purchase, there is charge-discharge protector on the controller, can prevent that charge current from too big messenger's battery temperature from taking place the accident, guarantee simultaneously that the current output keeps in a stable range, this function has been used on electric automobile, this application has only applied mechanically, the controller is mainly connected with motor 212 through the flying lead, winding displacement or mode that directly links, switch and battery electricity, after the switch was opened, the controller control battery is for the stable electric current of motor 212 transmission, still use the same mode and charge the mouth electricity connection on the controller, when external power source charges for the battery through the charge mouth, the controller control current size, this is common charge and switch circuit, and switch, motor 212 and controller are the market purchase so the circuit diagram has been omitted.

Example two

The electric suitcase capable of riding shown in fig. 6 is different from the first embodiment in that a telescopic pull rod is further arranged at the upper end of the armrest 408, a handle 411 is arranged at the top end of the telescopic pull rod, the telescopic pull rod is slidably arranged in the upper tube body of the front fork device, the telescopic pull rod is pulled out from the front fork device when the suitcase is dragged, and the structure of the telescopic pull rod is the same as that of the telescopic pull rod of the conventional common suitcase, and the telescopic pull rod belongs to the prior art and is not repeated herein.

Example III

An electric suitcase capable of riding as shown in fig. 7 to 11 is different from the first embodiment in that a pedal slot capable of retracting the pedal frame 302 is formed in the swing arm 217, when the swing arm 217 is opened, an unlocking lever 303 in the swing arm 217 abuts against a top plate 305 on the case 100 to maintain the unfolded state of the pedal frame 302, when the swing arm 217 is retracted, the unlocking lever 303 unlocks the pedal frame 302, and the pedal frame 302 is automatically retracted into the pedal slot.

As shown in fig. 7 and 8, the pedal frame 302 is automatically retracted when the swing arm 217 is folded up to the side of the case 100, thereby being convenient and quick.

Specific structure of pedal structure 300: the pedal frame 302 is hinged on the left side and the right side of the swing arm 217, pedal grooves are formed in the swing arm 217, the pedal frame 302 is rotationally folded in the pedal grooves on the left side and the right side of the swing arm 217 through pedal elastic reset pieces 307, the unlocking rod 303 is installed in an inner cavity of the swing arm 217, a locking groove plate 306 is arranged at the front end of the unlocking rod 303, locking grooves 308 are formed in the left side and the right side of the locking groove plate 306, the unlocking rod 303 is subjected to left and right centering reset through centering reset elastic pieces 304, the centering reset elastic pieces 304 comprise sleeves and arched elastic pieces on the left side and the right side of the sleeves, the centering reset elastic pieces 304 are plastic pieces, the centering reset elastic pieces 304 are sleeved on the unlocking rod 303, the tops of the arched elastic pieces act on the left side and the right side of the inner cavity of the swing arm 217 through sleeves, the rear ends of the unlocking rod 303 extend out of the swing arm 217, the unlocking rod 303 is kept in an extending state through the unlocking reset elastic pieces 301, the unlocking rod 301 is a spiral spring, when the swing arm 217 rotates to an open state, the rear end of the unlocking rod 303 is pushed forward by the box 100, the pedal elastic pieces 304 push the inner ends of the unlocking rod 303 to the unlocking rod 217 to the locking groove plate 306, the inner ends of the unlocking rod 217 are driven by the pedal elastic pieces 306 to move forward, the locking groove plate 306 is pushed by the pedal elastic pieces to overcome the pedal elastic pieces on the opposite sides of the locking groove plates 306, the locking groove plates 306 are pushed by the opposite sides of the unlocking rod 302, the unlocking rod 302 is pushed by the opposite sides of the unlocking elastic pieces, the unlocking rod 303 is pushed by the unlocking plate 306, and the locking plate is pushed by the opposite the unlocking plate 306, when the front end is pushed by the unlocking plate, and the unlocking plate is pushed by the unlocking plate, and the unlocking plate is kept by the unlocking plate, which is kept by the unlocking plate, and is kept is moved to be moved to the locking, and is moved to the locking by the locking, and is opened, the pedal frames 302 on the left side and the right side of the swing arm 217 are composed of pedals 309, auxiliary pedals 311 matched with the pedals 309 and connecting rods 310, the inner ends of the pedals 309 and the auxiliary pedals 311 are hinged to the swing arm 217, the two ends of the connecting rods 310 are hinged to the auxiliary pedals 311 and the outer ends of the matched pedals 309, the pedal frames 302 and the swing arm 217 form a parallel four-bar mechanism, the pedal frames 302 can be rotationally folded into a straight line state to enter pedal grooves, the pedal structure 300 is arranged in the swing arm 217, the swing arm 217 comprises a long vertical section and a short vertical section, the rear ends of the short vertical section are matched with the screw rod 201, the front ends of the long vertical section are connected with the front fork device 218, the pedal structure 300 is arranged in the long vertical section, and the rear ends of the unlocking rods 303 penetrate out from the rear ends of the long vertical section.

The tail of the unlocking lever 303 continuously abuts against the top plate 305 of the suitcase in the riding state, and the top plate 305 is fixedly mounted on the suitcase body 100.

Centering return spring 304 function: when the pedal frame 302 is manually broken, the locking groove plate 306 can be retracted, and after the pedal 309 enters the square notch of the locking groove plate 306, the centering reset elastic member 304 is rebounded to the centering state.

When the bicycle is in the non-riding state, the front fork device 218 is retracted into the front fork embedding groove 500 of the suitcase by the swing arm mechanism 200, at this time, a space exists between the rear end of the long vertical section of the swing arm 217 and the top plate 305, the unlocking rod 303 is separated from the constraint of the top plate 305, the rear end of the long vertical section of the swing arm 217 is ejected out of the rear end of the long vertical section of the swing arm 217 by the unlocking reset elastic piece 301, the end face is exposed for 15mm, and at this time, the locking groove plate 306 is in the unlocking position.

The top plate 305 continuously abuts against the rear end of the long vertical section of the swing arm 217 in the riding state, while the unlocking lever 303 pushes the locking groove plate 306 forward by 15mm, and the locking groove plate 306 enters the self-locking position.

The working principle is as follows: the front fork device 218 in riding state is separated from the front fork embedded groove 500 of the suitcase and straightens, the top plate 305 continuously props against the unlocking rod 303 which is originally exposed out of the rear end 15mm of the long vertical section of the swing arm 217, the unlocking rod 303 props into the rear end of the long vertical section of the swing arm 217, the unlocking rod 303 props the locking groove plate 306 forward 15mm, the locking groove plate 306 props against the unlocking reset elastic piece 301, the unlocking reset elastic piece 301 is in a compressed state, and the locking groove plate 306 is just in a self-locking position.

When a person manually breaks the left pedal frame 302, the pedals 309 of the left pedal frame 302 press the locking groove plate 306 first, that is, compress the centering reset elastic member 304, the centering reset elastic member 304 is pressed aside and deviates from the center, when the left pedal 309 is completely clamped into the locking groove 308, the centering reset elastic member 304 drives the locking groove plate 306 to centering and reset, the locking groove plate 306 is supported by the unlocking reset elastic member 301 in the front and is supported by the unlocking rod 303 and the top plate 305 in the rear, and cannot move back and forth, that is, the left pedal frame 302 is clamped by the locking groove plate 306 and cannot move back and forth, that is, the left pedal frame 302 is stretched out and self-locked. And (3) the same principle: the right pedal frame 302 is manually broken by a person, so that the right pedal 309 is blocked by the locking groove 308 and cannot move back and forth, and the manual force is terminated, so that the stretching self-locking work of the pedal frames 302 at two sides is completed.

And (3) recycling and automatically gathering: when the swing arm mechanism 200 starts to retract and rotate, a gap exists between the rear end of the long vertical section of the swing arm 217 and the box 100, the unlocking rod 303 starts to separate from the top plate 305, at this time, the elastic force of the unlocking reset elastic member 301 is larger than the sum of the tensile forces of the left pedal elastic reset member 307 and the right pedal elastic reset member 307 of the two pedal frames 302, the locking groove plate 306 and the unlocking rod 303 simultaneously move backwards under the action of the spring force of the unlocking reset elastic member 301, the outer end of the pedal frame 302 deflects towards the direction of the vehicle head, then the inner end of the pedal 309 of the pedal frame 302 starts to slide from the notch of the locking groove 308, and meanwhile, the pedal frame 302 is pulled back by the pedal elastic reset member 307 on the auxiliary pedal 311 under the tensile force of the pedal elastic reset member 307, so that the automatic retraction work is completed.

Example IV

A ridable electric suitcase as shown in fig. 12 to 16 is different from the first embodiment in that: the vehicle armrest 408 is connected with the lower part of the front fork device 218 through a telescopic pull rod structure 400, the telescopic pull rod structure 400 comprises an upper pull rod 401 and a lower pull rod 403, the vehicle armrest 408 is fixed on the upper pull rod 401, the lower pull rod 403 is connected with the lower part of the front fork device 218, the upper pull rod 401 can be telescopically and rotatably penetrated into the lower pull rod 403, the upper end of the lower pull rod 403 is provided with a slot, the upper part of the slot is hooped with a clamp structure 410, and the telescopic positions of the lower pull rod 403 and the upper pull rod 401 are locked. The clip structure 410 is a clip structure having a quick release structure. The height of the vehicle armrest 408 may be adjusted by simply releasing the clamp structure 410 via the telescoping pull rod structure 400.

The upper pull rod 401 and the lower pull rod 403 are provided with a rotation locking structure, the rotation locking structure comprises an upper clamping piece 402, a lower clamping piece 405, a spring 406, a spring limiting piece 407 and an upper blocking piece 404, the upper clamping piece 402, the lower clamping piece 405, the spring 406 and the spring limiting piece 407 are sleeved at the lower end of the upper pull rod 401 from top to bottom, the upper clamping piece 402, the spring limiting piece 407 and the upper pull rod 401 are fixedly connected, the lower clamping piece 405 is in non-rotatable fit with the lower pull rod 403, adjacent end faces of the upper clamping piece 402 and the lower clamping piece 405 are provided with a protruding head and a groove which are in mating engagement, the rotation locking is carried out on the upper pull rod 401 when the vehicle armrest 408 is in a riding state after 90-degree rotation, the spring 406 acts on the lower clamping piece 405 to push the lower clamping piece 405 to press the upper clamping piece 402, the upper blocking piece 404 is sleeved on the upper clamping piece 402, the outer contour of the lower clamping piece 405 is larger than the inner hole of the upper blocking piece 404, and the upper end of the rod hole of the lower clamping piece 405 is provided with a limiting structure 409 for blocking the upper blocking piece 404.

More specifically, the spring limiting plate 407 is fixed to the lower portion of the upper pull rod 401 by a screw, the upper clamping member 402 is fixed to the upper pull rod 401 by a rivet at about 1/2 of the upper stopper 404, the upper stopper 404 is a ring, and the limiting structure 409 is a spigot capable of blocking the upper stopper 404 from coming out.

As shown in fig. 12 and 16, the shape of the lower pull rod 403 in fig. 12 is a special-shaped pipe body with a circular arc transition surface, and the shape of the lower clamping piece 405 in fig. 16 is consistent with the shape of the inner hole of the lower pull rod 403, so that the two parts can be in non-rotatable fit.

The operation of the telescopic drawbar structure 400 with rotation locking structure: because the suitcase is folded and retracted after the armrest 408 rotates 180 degrees, in order to avoid the vertical relationship between the transverse armrest 408 and the suitcase 100 after the transverse armrest 408 is turned over during electrically driven riding, the armrest 408 needs to be rotated 90 degrees and then is parallel to the suitcase 100, the lower clamping piece 405 is pressed down into the front fork embedded groove 500, the lower clamping piece 405 is propped against the upper clamping piece 402 under the action of the elastic force of the spring 406, the upper clamping piece 402 is engaged with the convex head and the groove of the adjacent end surface of the lower clamping piece 405 in a matched manner, and the lower clamping piece 405 limits the upper clamping piece 402 to rotate circumferentially. When the upper pull rod 401 needs to be rotated, the upper pull rod 401 is pulled by the car handrail 408, because the upper clamping piece 402 and the upper pull rod 401 are fixedly connected, and the outer diameter of the upper clamping piece 402 is smaller than the inner diameter of the upper blocking piece 404, the upper clamping piece 402 moves upwards along with the upper pull rod 401 and gradually enters the inner hole of the upper blocking piece 404 until the upper clamping piece is completely submerged into the upper blocking piece 404, when the lower plane of the upper blocking piece 404 is lower than the lower plane of the upper clamping piece 402, because the outer diameter of the lower clamping piece 405 is larger than the inner diameter of the upper blocking piece 404, and the outer diameter of the upper clamping piece 402 is smaller than the inner diameter of the upper blocking piece 404, at the moment, the lower clamping piece 405 is blocked by the upper blocking piece 404, the spring 406 is further compressed, at the moment, the upper clamping piece 402 is separated from the constraint of the lower clamping piece 405, the upper clamping piece 402 can rotate freely, namely the upper pull rod 401 can rotate freely, and the rotation of the car handrail 408 is completed.

It is of course not excluded that in this embodiment the adjacent end faces of the upper and lower clips 402, 405 have two sets of mating engaging projections and recesses for rotationally locking the upper tie rod when the swing car armrest is in the riding condition and rotationally locking the upper tie rod when the swing car armrest is in the non-riding condition, respectively.

Example five

A ridable electric suitcase as shown in fig. 17 to 20 is different from the first embodiment in that: the front fork embedding groove 500 is provided with two elastic telescopic bolts 503 at two sides of the entrance of the front fork embedding groove 500, the two bolts are arranged in pairs and extend from top to bottom to shield the entrance of the front fork embedding groove 500, the two bolts are positioned above the swing arms 217, the front of the bolts 503 is an inward inclined plane for enabling the front fork device 218 to push the bolts 503 to enter the front fork embedding groove 500 through the inclined plane, the upper section of the back of the bolts 503 is a flat plane for locking the front fork device 218 embedded in the front fork embedding groove 500, the lower section of the back of the bolts 503 is an outward inclined plane for pushing the bolts 503 from bottom to top through the outward inclined plane when the swing arms 217 drive the front fork device 218 to swing outwards.

The upper section of the side surface of the lock tongue 503 is a vertical surface, and the lower section is an inclined surface, so that a gap gradually expanding from top to bottom is formed at the lower section of the lock tongue 503 when the two lock tongues are closed.

The upper and lower sections of the back of the tongue 503 are transitioned by a bevel.

The spring bolt is elastically telescopic and installed in a specific structure that; the front fork embedding groove 500 has the spring bolt mounting groove 501 in the entry both sides, and spring bolt 503 installs in this mounting groove, has spring bolt spring 502 in the mounting groove for promote spring bolt 503 elasticity flexible, the spring bolt 503 extension department on the spring bolt mounting groove 501 has the spacing tang of spacing spring bolt 503 travel distance.

The double locking tongue has two doors which are split like two doors and is used for locking the front fork device 218 after the front fork device 218 is recovered into the front fork embedded groove 500, so that the front fork device 218 is not easy to fall out, and meanwhile, the locking tongue 503 can enable the front fork device 218 to break loose from the front fork embedded groove 500 rapidly when the swing arm mechanism 200 is unfolded.

Specifically, the upper section of the lock tongue 503 is the upper 2/5 of the lock tongue 503, the remaining about 3/5 is the lower section of the lock tongue 503, the inner inclined surface of the front surface of the lock tongue 503 is a 45 ° inclined surface, and the outer inclined surface of the lower section of the back surface of the lock tongue 503 is a 45 ° inclined surface. The lower section of the side of the tongue 503 is 45 ° inclined. The upper and lower sections of the back of the tongue 503 are transitioned by an upward 60 sloped surface. The upper section distance between the two lock bolts is 15mm, and the distance between the bottommost ends of the lower sections between the two lock bolts is 30mm.

The structure principle of the lock tongue 503 is as follows: the contact surface of the front fork device 218 and the lock tongue 503 is arc-shaped, and the lock tongue 503 is an inclined surface, and the structure of the inclined surface touching the arc surface is beneficial to the front fork device 218 to be easily extruded into the lock tongue 503, thereby achieving the easy-to-enter effect. The upper end of the structure is easy to enter and difficult to exit, the front fork device 218 can be used as a common pull rod after being folded, when the suitcase is pulled, the stressed part of the front fork device 218 is at the upper part, but the front fork device is difficult to escape due to the existence of the flat surface of the upper section of the back surface of the lock tongue 503, but when the front fork device 218 is rotated to be opened, the lower part of the front fork device 218 can firstly escape through the lower part of the lock tongue 503, and then the lock tongue 503 is gradually pushed away from bottom to top, so that the escape action is realized. When the front fork device 218 is pushed into the front fork embedded groove 500, the spring bolt springs 502 are compressed, the two spring bolts are opened, after the front fork device 218 is rotated and folded in place, the spring bolts 503 immediately return under the action of the pressing force of the spring bolt springs 502, and the flat surface of the upper section of the back surface of the spring bolts 503 seals the front fork device 218 and does not escape, so that a series of continuous actions of self-locking in the groove are realized.

Example six

A ridable electric suitcase as shown in fig. 21 to 23 is different from the first embodiment in that: the rear wheel retraction device comprises a rear wheel bracket 110, a stay wire 211, a reset tension spring 113 and a driving connecting rod structure, wherein the rear riding wheel 101 is arranged on the rear wheel bracket 110, the rear wheel bracket 110 is rotatably arranged on the vehicle body 109 through a rotating shaft 102, the stay wire 211 drives the rear wheel bracket 110 to rotate from a horizontal retraction state to a vertical opening state through the driving connecting rod, and the reset tension spring 113 acts on the rear wheel bracket 110 or drives the connecting rod to rotate and reset the rear wheel bracket 110.

The driving connecting rod structure comprises a rocker 105 and a connecting rod 104, one end of the rocker 150 is hinged on a vehicle body 109, the other end of the rocker 105 is hinged with one end of the connecting rod 104, the other end of the connecting rod 104 is hinged with a rear wheel support 110, the rocker 105, the connecting rod 104 and the rear wheel support 110 form a rocker mechanism, two sides of the rocker 105 are provided with driving ends which extend out, a stay wire 211 and a reset tension spring 113 respectively act on the driving ends, the rocker 105 is driven to swing, the rear wheel support 110 is driven to rotate and retract and open by swinging of the rocker 105, when the stay wire 211 drives the rear wheel support 110 to open to a vertical state, the rocker 105 is limited by a limiting piece, and the rocker 105 and the connecting rod 104 pass through a collinear position of the two for forming a clamping effect on the rear wheel support 110.

Specifically, the number of the rear riding wheels 101 is one, the rear wheel retraction device retracts the rear riding wheels 101 in a left-right rotation manner, two sides of the rocking bar 105 are provided with extended driving ends, the stay wire 211 and the reset tension spring 113 are respectively connected with the two driving ends of the rocking bar 105, and the stay wire 211 drives the rear wheel bracket 110 to be vertically opened in a manner of pulling the driving ends upwards.

This structure allows only the stay wire 211 and the return tension spring 113 to change the state of the rear riding wheel 101, and the stay wire 211 can lock the riding state of the rear riding wheel 101, i.e., the state of the rear riding wheel 101 perpendicular to the ground is not changed.

More specifically, the rear wheel bracket 110 is electrically welded to the rotating shaft 102; the shaft sleeve 112 is fixed with the car body 109 by electric welding; the shaft sleeve 112 is sleeved outside the rotating shaft 102, and the rotating shaft 102 can only rotate around the shaft sleeve 112 and can not move back and forth, left and right and up and down. The rotating shaft 102 is provided with a first pulling rod 103, and the first pulling rod 103 is fixed with the rotating shaft 102; the first shifting lever 103 is connected with the connecting rod 104 through a pin, and can only rotate around the corresponding pin, and the first shifting lever 103 is used for realizing indirect hinging of the connecting rod 104 and the rear wheel bracket 110, which is equivalent to direct hinging of the connecting rod 104 and the rear wheel bracket 110; the connecting rod 104 is connected with the rocker 105 through pins, and can only rotate around corresponding pins; the middle parts of the rocking rod 105 and the fourth deflector rod 106 are fixed by electric welding, so that the fourth deflector rod 106 becomes the driving ends of the two sides of the rocking rod 105, an opening is formed at the electric welding joint, and the opening is connected with a fixed fulcrum 111 through a pin, so that the rocking rod 105 and the fourth deflector rod 106 simultaneously rotate around the fixed fulcrum 111; one end of the fourth deflector rod 106 is fixed with a stay wire 211 through a screw, the other end of the fourth deflector rod 106 is fixed with a reset tension spring 113, and the stay wire 211 can turn at will through a frame stay wire sleeve 108 to achieve force transmission.

Principle of motion of the mechanism: when the riding state is switched, the swing arm mechanism 200 works, the pull wire 211 is pulled upwards, the fourth deflector rod 106 moves upwards, the rocker 105 rotates clockwise by taking the fixed pivot 111 as a pivot, the connecting rod 104 moves upwards, the first deflector rod 103, the rotating shaft 102, the rear wheel bracket 110 and the rear riding wheel 101 rotate anticlockwise by taking the shaft sleeve 112 as a pivot, when the rocker 105 and the connecting rod 104 rotate slightly to the collinear position of the rocker 105 and the connecting rod 104, the fourth deflector rod 106 is contacted with the limiting structure 114, the fourth deflector rod 106 is forced to stop moving due to the tightening reason of the pull wire 211 and clamps the connecting rod 104 in the state, at the moment, the rear riding wheel 101 is just vertical to the ground, the connecting rod structure is driven to clamp the rear wheel bracket 110, at the moment, the first deflector rod 103 cannot move clockwise or anticlockwise, namely the upright state of the rear riding wheel 101 is stable.

In the non-riding state, as the swing arm mechanism 200 is retracted, and the stay wire 211 is in the loose state, the return tension spring 113 is tightened, so that the rocker 105 rotates anticlockwise by taking the fixed pivot 111 as a pivot, the connecting rod 104 is driven to move downwards, the first deflector rod 103, the rotating shaft 102, the rear wheel bracket 110 and the rear riding wheel 101 simultaneously rotate clockwise by taking the shaft sleeve 112 as a pivot, and the rear riding wheel 101 is changed from the vertical state to the lying state, namely the wheel is retracted.

The difference between the present embodiment and the first embodiment is that the rear riding wheel 101 is retracted from the side of the case 100, and does not occupy the internal space of the case 100, and the front and rear retraction of the rear riding wheel 101 of the first embodiment requires a small portion of the internal space of the case 100.

Example seven

A ridable electric suitcase as shown in fig. 24 to 27 is different from the sixth embodiment in that: the number of the rear riding wheels 101 is two, the rear riding wheels 101 are respectively positioned on two sides of the box body 100, the rear riding wheels 101 are retracted and released by the rear wheel retraction device in a mode of rotating towards the inner side direction of the box body 100, the two rear wheel retraction devices are identical in structure and are symmetrically arranged, the rocker 105 is provided with a driving end extending inwards, and the stay wire 211 and the reset tension spring 113 act on the driving end.

More specifically, the rear wheel bracket 110 is electrically welded to the rotating shaft 102; the shaft sleeve 112 is fixed with the car body 109 by electric welding; the shaft sleeve 112 is sleeved outside the rotating shaft 102, and the rotating shaft 102 can only rotate around the shaft sleeve 112 and can not move back and forth, left and right and up and down. The first deflector rod 103 is fixed with the rotating shaft 102; the first deflector rod 103 is connected with the connecting rod 104 through pins, and can only rotate around corresponding pins; the connecting rod 104 is connected with the rocker 105 through pins, and can only rotate around corresponding pins; the rocking bar 105 is fixed with the fourth deflector rod 106 by electric welding, so that the fourth deflector rod 106 is a driving end extending inwards of the rocking bar 105, a hole is formed at the electric welding joint, the hole is connected with the fixed fulcrum 111 by a pin, and the rocking bar 105 and the fourth deflector rod 106 simultaneously rotate around the fixed fulcrum 111; the pull wire 211 acts on the fourth deflector rod 106 through the fifth connecting rod 107, and the fourth deflector rod 106 is connected with the fifth connecting rod 107 through a pin and can only rotate around a corresponding pin; the non-hinged ends of the fifth connecting rods 107 of the rear wheel retraction device on the left side and the right side are combined together and are fixed with the stay wires 211 by screws, the hinged ends of the fifth connecting rods 107 are respectively fixed with the respective reset tension springs 113, and the stay wires 211 can turn at will through the frame stay wire sleeve 108 to achieve force transmission.

Principle of motion of the mechanism: when the riding state is switched, the swing arm mechanism 200 works, so that the stay wire 211 is pulled upwards, the fifth connecting rod 107 moves upwards, the rocking bars 105 of the rear wheel retraction devices on the left side and the right side simultaneously rotate clockwise and anticlockwise respectively by taking the fixed supporting point 111 as a supporting point, and the connecting rod 104 moves downwards; when the rocker 105 and the connecting rod 104 are rotated slightly past the collinear positions of the rocker 105 and the connecting rod 104, the fourth deflector rod 106 is contacted with the limiting structure 114, the fourth deflector rod 106 is forced to stop moving due to the tightening of the pull wire 211, the connecting rod 104 is blocked in the state, the rear riding wheel 101 is just perpendicular to the ground, the connecting rod structure is driven to form a blocking effect on the rear wheel bracket 110, and the first deflector rod 103 cannot move clockwise or anticlockwise at the moment, namely, the standing state of the rear riding wheel 101 is stable.

When the swing arm mechanism 200 is retracted in the non-riding state and the stay wire 211 is in the loosening state, the return tension spring 113 is tightened, so that the fourth deflector rod 106 and the rocker 105-1 rotate by taking the fixed pivot 111 as a pivot, the connecting rod 104 is driven to move upwards, the first deflector rod 103, the rotating shaft 102, the rear wheel bracket 110 and the rear riding wheels 101 simultaneously rotate by taking the shaft sleeve 112 as a pivot, and the two rear riding wheels 101 are changed from the vertical state to the lying state, namely the rear wheels 110 are retracted.

With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.

Claims

1. The utility model provides an electric traveling case can ride, includes the box that can supply the user to ride, supports front wheel and the rear wheel that the box marched, and the front wheel is installed on the front fork device, characterized by: the box body is provided with a swing arm mechanism, the front fork device is arranged on the swing arm mechanism, the swing arm mechanism is driven by a driver to rotate and fold, and the front fork device positioned in the advancing direction of the box body is rotated and folded to the side surface of the box body;

the swing arm mechanism is driven by the driver to perform a lifting action while performing a rotating action, and the front wheel is lifted off the ground while rotating and folding the front fork device to the side surface of the box body;

the swing arm mechanism comprises a swing arm, a rotating shaft device and a driver, wherein the driver is a motor, the swing arm is arranged on the box body through the rotating shaft device, the driver drives the swing arm to rotate around the rotating shaft of the rotating shaft device, and the rotating shaft device is provided with a spiral guide mechanism for enabling the swing arm to be spirally lifted under the guide of the spiral guide mechanism;

The rotating shaft device specifically comprises a shell and a screw rod which is installed through the shell and serves as a rotating shaft of a swing arm, the swing arm is matched with the screw rod through a screw structure, a driver drives the screw rod to rotate, a spiral guide mechanism is arranged on the shell, and the swing arm is spirally lifted under the driving of the screw rod and the guide action of the spiral guide mechanism;

the rotating shaft device further comprises pressure-resistant rubber which is sleeved at the upper end and the lower end of the screw rod and used for restraining the ascending stroke and the descending stroke of the swing arm;

the rotating shaft device of the swing arm mechanism also comprises a stay wire power nut and a linear guide structure, the stay wire power nut is sleeved on the screw rod, the stay wire power nut moves linearly under the drive of the screw rod and the guide of the linear guide structure, the stay wire power nut is connected with the stay wire, and power is output outwards through the stay wire;

the linear guide structure is specifically a clamping groove arranged on the inner wall of the shell, the pull wire power nut is specifically embedded into a protruding part of the clamping groove, the pull wire power nut is arranged close to the swing arm, elastic rubber is arranged between the pull wire power nut and the swing arm, and the elastic rubber is sleeved on the screw rod;

the rear wheel at the bottom of the box body comprises a pulley and a rear riding wheel, the rear riding wheel is arranged on the rear wheel retraction device for retraction, and the opened rear riding wheel and the front wheel lift the pulley of the box body off the ground together;

The rear riding wheel retraction device is used for retracting the rear riding wheel in a mode of rotating from a horizontal retraction state to a vertical opening state, the rear riding wheel retraction device is rotated to be opened under the action of a pull wire and rotated to be reset under the action of a reset tension spring, and the pull wire is powered by a swing arm mechanism;

the rear wheel winding and unwinding device comprises a rear wheel support, a stay wire, a reset tension spring and a driving connecting rod structure, wherein a rear riding wheel is arranged on the rear wheel support, the rear wheel support is rotatably arranged on a box body through a rotating shaft, the stay wire drives the rear wheel support to rotate to a vertical opening state from a horizontal folding state through the driving connecting rod structure, the reset tension spring acts on the rear wheel support or the driving connecting rod structure to rotate and reset the rear wheel support, the driving connecting rod structure comprises a rocker and a connecting rod, one end of the rocker is hinged on the box body, the other end of the rocker is hinged with one end of the connecting rod, the other end of the connecting rod is hinged with the rear wheel support, the rocker, the connecting rod and the rear wheel support form a rocker mechanism, one side or two sides of the rocker are provided with extending driving ends, the stay wire and the reset tension spring act on driving ends respectively, the rocking rod is driven to swing, the rear wheel support is driven to rotate to fold and open, and when the stay wire drives the rear wheel support to open to the vertical state, the rocking rod is limited by a limiting piece and the rocking rod and the connecting rod passes through the collinear position of the two sides for forming a blocking effect on the rear wheel support.

2. The rideable electric travel case of claim 1, wherein: the upper part of the front fork device is provided with a trolley handrail, the trolley handrail is connected with the lower part of the front fork device through a telescopic pull rod structure, the telescopic pull rod structure comprises an upper pull rod and a lower pull rod, the trolley handrail is fixed on the upper pull rod, the lower pull rod is connected with the lower part of the front fork device, the upper pull rod penetrates into the lower pull rod in a telescopic rotating manner, the upper end of the lower pull rod is provided with a slot, the slot part is provided with a clamp structure, the telescopic positions of the lower pull rod and the upper pull rod are locked, a rotary locking structure is arranged between the upper pull rod and the lower pull rod, the rotary locking structure comprises an upper clamping piece, a lower clamping piece, a spring limiting piece and an upper retaining piece, the upper clamping piece, the lower clamping piece, the spring limiting piece and the lower end of the upper pull rod are sleeved from top to bottom, the upper clamping piece, the spring limiting piece and the upper pull rod are fixedly connected, the lower clamping piece and the lower clamping piece are in a non-rotatable fit, the adjacent end faces of the upper clamping piece and the lower clamping piece are provided with a matched convex head and a groove, the clamp is used for locking the upper clamping piece and the lower clamping piece in a rotating state after 90-degree rotation of the trolley handrail is in a running state, the upper clamping piece is provided with an inner hole of the upper clamping piece and the lower clamping piece, the upper clamping piece is provided with a large retaining piece and the upper clamping piece is provided with an upper retaining piece and a retaining piece.

3. The rideable electric travel case of claim 1, wherein: the pedal structure comprises pedals and unlocking rods, the pedals are hinged to the left side and the right side of the swing arm, the pedals are rotationally folded on the left side and the right side of the swing arm through pedal elastic reset pieces, the unlocking rods are installed in the inner cavities of the swing arm, the front ends of the unlocking rods are provided with locking groove plates, the left side and the right side of the locking groove plates are provided with locking grooves, the unlocking rods are centered to reset left and right through centering reset elastic pieces, the rear ends of the unlocking rods extend out of the swing arm, the unlocking rods maintain an extending state through unlocking reset elastic pieces, the unlocking rods rotate to an open state, the rear ends of the unlocking rods are pushed forward by a box body, the unlocking rods overcome the elastic effect of unlocking reset elastic pieces to drive the locking groove plates to move forward to a locking position, the inner ends of the pedals on one side of the swing arm are embedded into the locking grooves of the opposite sides in a mode of pushing the elastic effect of centering reset elastic pieces to achieve locking of the pedals, when the swing arm is rotationally folded, the unlocking reset elastic pieces push the unlocking rods to reset the locking grooves to extend out, and the locking effect of the inner ends of the pedals is relieved.

4. The rideable electric travel case of claim 3, wherein: the unlocking reset elastic piece is a coil spring and is positioned in front of the locking groove plate, the centering reset elastic piece comprises a sleeve and arch elastic parts on the left side and the right side of the sleeve, the centering reset elastic piece is sleeved on the unlocking rod through the sleeve, the top of the arch elastic parts acts on the left side and the right side of an inner cavity of the swing arm, a pedal groove is formed in the swing arm, pedals on the left side and the right side of the swing arm are matched with auxiliary pedals and connecting rods to jointly form a pedal frame, the inner ends of the auxiliary pedals are hinged on the swing arm, two ends of the connecting rods are hinged with the outer ends of the auxiliary pedals and the matched pedals, the pedal frame and the swing arm form a parallel four-bar mechanism, the pedal frame can be rotationally folded into a linear state to enter the pedal groove, the swing arm is an L-shaped swing arm, the swing arm comprises a long vertical section and a short vertical section, the rear end of the short vertical section is matched with a screw rod, the front end of the long vertical section is connected with a front fork device, the pedal structure is arranged in the long vertical section, and the rear end of the unlocking rod penetrates out from the rear end of the long vertical section.

5. The rideable electric travel case of claim 1, wherein: the side of box have the front fork embedded groove, be provided with the spring bolt of elastic telescopic installation in the entry both sides in front fork embedded groove, two spring bolts pair set up and extend from top to bottom and shelter from the entry in front fork embedded groove, two spring bolts are located its top relative swing arm, the front of spring bolt is interior inclined plane for make front fork device accessible inclined plane push away the spring bolt and get into front fork embedded groove, the upper segment at the back of spring bolt is the plane, be used for pinning the front fork device of embedding front fork embedded groove, the lower segment at the back of spring bolt is the camber, be used for when the swing arm drives the outer pendulum of front fork device accessible this camber to push away the spring bolt from bottom to top.

6. The rideable electric travel case of claim 5, wherein: the upper segment of the side of spring bolt be vertical face, the hypomere is the inclined plane for form by last clearance that enlarges gradually down at the hypomere of spring bolt when two spring bolts are closed, upper segment and hypomere on the back of spring bolt between pass through the inclined plane transition, the concrete structure of spring bolt elastic expansion installation be: the front fork embedding groove has the spring bolt mounting groove in the entry both sides, and the spring bolt is installed in this mounting groove, has the spring bolt spring in the mounting groove for promote spring bolt elasticity flexible.

7. The rideable electric travel case of claim 1, wherein: the rear riding wheels are retracted and extended in a left-right rotating mode, two sides of the rocking bar are provided with extended driving ends, a stay wire and a reset tension spring are respectively connected with the two driving ends of the rocking bar, and the stay wire drives the rear wheel bracket to be vertically opened in a mode of pulling the driving ends upwards; or, the number of the rear riding wheels is two, the rear riding wheels are respectively positioned on two sides of the box body, the rear wheel retraction device is used for retracting the rear riding wheels in a mode of rotating towards the inner side direction of the box body, the two rear wheel retraction devices are identical in structure and are symmetrically arranged, the rocker is provided with a driving end extending inwards, the pull wire and the reset tension spring act on the driving end, and the pull wire drives the rear wheel support to be vertically opened in a mode of upwards pulling the driving end.