Smart luggage

Abstract

The present invention discloses a smart suitcase, comprising a case, auxiliary wheels arranged at the bottom of the case, and a power wheel module, wherein the power wheel module comprises a liftable power wheel. The liftable power wheel of the present invention can protrude from the case or retract into the case. When the power wheel protrudes from the case, the auxiliary wheel is driven by the power wheel and drives the smart suitcase to move together, and the smart suitcase is in a non-manual moving mode; when the power wheel is retracted into the case, the smart suitcase is supported on the ground by the auxiliary wheel, and the user can drag or push the smart suitcase to move by a pull rod, and the smart suitcase is in a manual moving mode. The user can arbitrarily select one of the two moving modes to move the smart suitcase by adjusting the height of the liftable power wheel. The smart suitcase of the present invention has the advantages of a manual moving mode and a non-manual moving mode.

Description

Technical Field

[0001] The invention relates to a suitcase, in particular to an intelligent suitcase with liftable power wheels. Background Art

[0002] There are two types of luggage in the current market: ordinary luggage that moves manually or electric luggage that moves electrically. Ordinary luggage moves by dragging a handle and does not have the function of automatic movement. Electric luggage moves only by electric wheels and usually does not support manual pushing and pulling. Consumers want a luggage that can be moved by both manual dragging and electric driving. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an intelligent suitcase with liftable power wheels.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a smart suitcase, comprising a case body, auxiliary wheels arranged at the bottom of the case body and a power wheel module, wherein the power wheel module comprises a liftable power wheel.

[0005] Compared with the prior art, the present invention has the following beneficial effects: the smart suitcase of the present invention includes auxiliary wheels installed at the bottom of the suitcase body and a power wheel module that can drive the auxiliary wheels to rotate together. The liftable power wheels of the power wheel module can protrude out of the box body or retract into the box body. When the power wheels protrude out of the box body, the auxiliary wheels are driven by the power wheels and drive the smart suitcase to move together. At this time, the smart suitcase is in a non-manual moving mode; when the power wheels are retracted into the box body, the smart suitcase is supported on the ground by the auxiliary wheels, and the user can conveniently drag or push the smart suitcase to move by a pull rod. At this time, the smart suitcase is in a manual moving mode, which is convenient for the user to push and pull.

[0006] Preferably, the power wheel module includes a fixed body fixed in a casing, a power wheel lifting assembly installed on the fixed body, the power wheel lifting assembly includes a rotating shaft installed on the fixed body, a connecting rod connected to the rotating shaft and a force-applying member capable of driving the rotating shaft to rotate, the power wheel is installed on the connecting rod, the fixed body is provided with a first opening for accommodating the power wheel to pass through, the casing is provided with a second opening opposite to the first opening and accommodating the power wheel to pass through, and the force-applying member can drive the power wheel to pass through the first opening and the second opening to protrude out of the casing or retract into the casing.

[0007] Preferably, the number of the power wheel modules is two, namely the first module and the second module; the first module includes a first fixed body fixed in the box body, a first power wheel lifting assembly installed on the first fixed body, the first power wheel lifting assembly includes a first rotating shaft installed on the first fixed body, a first connecting rod connected to the first rotating shaft, a first power wheel installed on the first connecting rod, and a first force member capable of driving the first rotating shaft to rotate; the second module includes a second fixed body fixed in the box body, a second power wheel lifting assembly installed on the second fixed body, the second power wheel lifting assembly includes a second rotating shaft installed on the second fixed body, a second connecting rod connected to the second rotating shaft, a second power wheel installed on the second connecting rod, and a second force member capable of driving the second rotating shaft to rotate.

[0008] Preferably, the first force applying member and the second force applying member are a first rotating member and a second rotating member respectively located at two outer sides of the box body.

[0009] Preferably, the first rotating shaft and the second rotating shaft are respectively provided with a first positioning member and a second positioning member, the first fixing body is provided with a first screw-in positioning groove and a first screw-out positioning groove cooperating with the first positioning member; the second fixing body is provided with a second screw-in positioning groove and a second screw-out positioning groove cooperating with the second positioning member.

[0010] Preferably, the first positioning member includes a first hand-pressing portion that passes through the first rotating member and protrudes out of the outer side of the box body, a first sliding body portion that can slide along the first rotating shaft, and a first blocking piece that protrudes out of the first rotating shaft and is used to cooperate with the first screw-in positioning groove and the first screw-out positioning groove; a first elastic member is installed between the first sliding body portion and the first rotating shaft; the second positioning member includes a second hand-pressing portion that passes through the second rotating member and protrudes out of the outer side of the box body, a second sliding body portion that can slide along the second rotating shaft, and a second blocking piece that protrudes out of the second rotating shaft and is used to cooperate with the second screw-in positioning groove and the second screw-out positioning groove; a second elastic member is installed between the second sliding body portion and the second rotating shaft.

[0011] Preferably, the smart suitcase includes a pull rod base, and the pull rod base includes a receiving body connected to the pull rod and a fixing portion extending from the receiving body, and the fixing portion is fixedly connected to the first fixing body or the second fixing body.

[0012] Preferably, there are two fixed bodies, namely a first fixed body and a second fixed body, one end of the rotating shaft is mounted on the first fixed body, and the other end is mounted on the second fixed body; there are two connecting rods, namely a first connecting rod and a second connecting rod; there are two power wheels, namely a first power wheel connected to the first connecting rod and a second power wheel connected to the second connecting rod.

[0013] Preferably, the force-applying member is a rotating member located outside the box body.

[0014] Preferably, the rotating shaft is provided with a positioning piece, and the first fixing body is provided with a screw-in positioning groove and a screw-out positioning groove cooperating with the positioning piece.

[0015] Preferably, the positioning member includes a hand-pressing portion that passes through the rotating member and protrudes from the outside of the box body, a sliding body portion that can slide along the rotating shaft, and a blocking piece that protrudes from the rotating shaft and cooperates with the positioning groove when screwed in and out of the positioning groove; an elastic member is installed between the sliding body portion and the rotating shaft.

[0016] Preferably, the smart suitcase includes a pull rod base, and the pull rod base includes a receiving body connected to the pull rod and a fixing portion extending from the receiving body, and the fixing portion is fixedly connected to the first fixing body or the second fixing body.

[0017] Preferably, the force-applying member comprises a pull member having a knob installed on the box body and one end of which is connected to the knob and the other end of which is connected to the first connecting rod or the second connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional schematic diagram of a smart suitcase according to Embodiment 1 of the present invention;

[0019] Figure 2 This is a schematic diagram of the interior of the smart suitcase of Embodiment 1;

[0020] Figure 3 is a three-dimensional schematic diagram of a power wheel module of the first embodiment;

[0021] Figure 4 is a three-dimensional schematic diagram of a fixing body of the first embodiment;

[0022] Figure 5 It is a three-dimensional schematic diagram of the power wheel lifting assembly of the first embodiment;

[0023] Figure 6 It is an exploded schematic diagram of various accessories in the power wheel lifting assembly of the first embodiment;

[0024] Figure 7 This is a schematic diagram of the connection of the positioning member in the power wheel module of the first embodiment;

[0025] Figure 8 is a three-dimensional schematic diagram of the rotating member of the first embodiment;

[0026] Fig. 9 for Figure 8 A cross-sectional view of the middle rotating member along the AA direction;

[0027] Fig.10a is a three-dimensional schematic diagram of a first fixed body of Embodiment 1;

[0028] Fig.10bis a three-dimensional schematic diagram of the first fixed body of Embodiment 1 from another viewing angle;

[0029] Fig.11a is a three-dimensional schematic diagram of a second fixing body of Embodiment 1;

[0030] Fig.11b is a three-dimensional schematic diagram of the second fixed body of the first embodiment from another viewing angle;

[0031] Fig.12 It is a three-dimensional schematic diagram of the pull rod base of the first embodiment;

[0032] Fig.13 This is a schematic diagram of the interior of the smart suitcase of Example 2;

[0033] Fig.14a This is a three-dimensional schematic diagram of the first fixing body connected to the second fixing body in Embodiment 2;

[0034] Fig.14b A three-dimensional schematic diagram of another viewing angle of the first fixing body connected to the second fixing body in the second embodiment;

[0035] Fig.15 This is a schematic diagram of the interior of the smart suitcase of Embodiment 3;

[0036] Fig.16a This is a three-dimensional schematic diagram of the first fixed body connected to the second fixed body in Example 3;

[0037] Fig.16b This is a three-dimensional schematic diagram of another perspective showing the connection between the first fixing body and the second fixing body of the third embodiment. DETAILED DESCRIPTION

[0038] The specific implementation modes of the present invention are described in detail below with reference to the accompanying drawings, but are not intended to limit the protection scope of the present invention.

[0039] Embodiment 1

[0040] See also Figure 1 and Figure 2In this embodiment, a smart suitcase includes a case 1, a pull rod 2 installed on the case 1, four auxiliary wheels 10 and a power wheel module 3 installed at the bottom of the case 1, a motor control box 11 installed inside the case 1 for installing a control system, a camera module 12 and a power supply 13 installed inside the case 1. The power wheel module 3 includes a power wheel 53 for electrically driving the smart suitcase to move. The power wheel 53 can cooperate with the four auxiliary wheels 10 to support the smart suitcase; it can also drive the four auxiliary wheels 10 to rotate to move the smart suitcase. The control system is used to control the rotation of the power wheel 53. The camera module 12 signal is connected to the control system. The camera module 12 includes a camera 14 that can shoot through the case 1 and an image processing module connected to the camera 14. The user can drag or push the smart suitcase to move by the pull rod 2; the user can also push the smart suitcase horizontally to move when all four auxiliary wheels 10 are on the ground; of course, when the smart suitcase accompanies the user and is located in front of or behind the user, the smart suitcase can also use the image information about the user's movement captured by the camera 14, which is processed by the image processing module and transmitted to the control system, and the control system drives the power wheel 53 to rotate, and the four auxiliary wheels 10 are driven by the power wheel 53 to rotate, so that the smart suitcase is in front of or behind the user and automatically accompanies the user to move and turn accordingly.

[0041] See also Figures 2 to 7 The power wheel module 3 includes a fixed body 4 fixed in the box body 1 and a power wheel lifting assembly 5 installed on the fixed body 4. The fixed body 4 is a containing box body with an opening, and a support body 41 for installing the power wheel lifting assembly 5 is provided inside the containing box body. The power wheel lifting assembly 5 includes a rotating shaft 51 installed on the fixed body 4, a connecting rod 52 connected to the rotating shaft 51, a power wheel 53 installed on the connecting rod 52, and a force-applying member capable of driving the rotating shaft 51 to rotate. The support body 41 protrudes upward from the bottom of the fixed body 4, and its extension part is provided with a rotating shaft positioning part 411, a baffle displacement part 412 and a rotating shaft connecting part 413 in sequence from the outside to the inside of the fixed body 4. The rotating shaft connecting part 413, the side wall of the fixed body 4 and the side wall of the box body 1 are all provided with an axis hole 414 located on the same axis. The rotating shaft 51 of the power wheel lifting assembly 5 is connected to the shaft hole 414, and the two ends of the rotating shaft 51 protrude from the shaft holes 414 provided on the rotating shaft connection part 413 and the side wall of the box body 1 respectively. One end of the connecting rod 52 is fixedly connected to the rotating shaft 51 protruding from the rotating shaft connection part 413, and the other end is installed with the power wheel 53 through the wheel axle. The force-applying member is fixedly connected to the rotating shaft 51 protruding from the side wall of the box body 1. The user manually pulls the force-applying member to rotate the rotating shaft 51, and then the power wheel 53 fixedly connected to the connecting rod 52 rotates in the same direction as the rotating shaft 51, and the power wheel 53 can swing up and down relative to the rotating shaft 51, that is, the power wheel 53 can be lifted up and down relative to the box body 1. Pulling the force-applying member can make the power wheel 53 contact the ground or stay away from the ground.

[0042] The fixed body 4 is provided with a first opening 415 for the power wheel 53 to pass through and a third opening 416 for the axle mounting end of the connecting rod 52 to pass through, and the first opening 415 and the third opening 416 are connected to each other. The box body 1 is provided with a second opening (not shown in the figure) opposite to the first opening 415 and for the power wheel 53 to pass through, and a fourth opening (not shown in the figure) opposite to the third opening 416 and for the axle mounting end of the connecting rod 52 to pass through, and the second opening and the fourth opening are also connected to each other. When the force-applying member drives the power wheel 53 to swing up and down, the power wheel 53 can pass through the first opening 415 and the second opening to protrude out of the box body or retract into the box body, and the corresponding axle mounting end of the connecting rod 52 can follow the power wheel 53 to protrude out of the box body or retract into the box body. Of course, in other embodiments, when the four auxiliary wheels 10 installed at the bottom of the box body 1 are small in size and the distance between the bottom of the box body 1 and the ground is small, the fixed body 4 can only be provided with the first opening 415 for the power wheel 53 to pass through, and the corresponding box body 1 can also only be provided with the second opening opposite to the first opening 415 and for the power wheel 53 to pass through. At this time, the axle mounting end of the connecting rod 52 cannot protrude out of the box following the power wheel 53. Only part of the outline of the power wheel 53 needs to protrude out of the box. When the power wheel 53 protrudes out of the box, the control system can drive the power wheel 53 to rotate, and the power wheel 53 drives the four auxiliary wheels 10 to rotate to move the smart suitcase. It is beneficial for the smart suitcase to automatically move with the user. When the power wheel 53 is retracted into the box, the smart suitcase relies on the four auxiliary wheels 10 to support it on the ground, which is beneficial for the user to drag or push the smart suitcase to move. Of course, in other embodiments, a balancing module can be installed in the box 1; when the power wheel 53 contacts the ground, the four auxiliary wheels 10 can be separated from the ground, and the smart suitcase can be used as a balancing car.

[0043] See also Figure 1 as well as Figures 7 to 9, the force-applying member is a rotating member 54 located outside the housing 1. The rotating member 54 includes a sleeve 541 sleeved on the rotating shaft 51, a hand-held rotating handle 542 protruding in the radial direction from a part of the outer circumference of the sleeve 541, a limit plate 543 fixedly connected to the end face of the sleeve 541, and a handle strengthening force arm 544 protruding in the radial direction from a part of the outer circumference of the limit plate 543. The handle strengthening force arm 544 is fixedly fitted to the hand-held rotating handle 542, and the length of the handle strengthening force arm 544 is greater than the length of the hand-held rotating handle 542. The sleeve 541 is fixedly connected to the rotating shaft 51 by a pin. A circular countersunk hole 15 is recessed on the side wall of the housing 1 connected to the rotating shaft 51. The circular countersunk hole 15 takes the axis of the rotating shaft 51 as the center of the circle and the length of the hand-held rotating handle 542 as the radius. The depth of the circular countersunk hole 15 is equal to the width of the sleeve 541. The hand-held rotating handle 542 is installed in the circular countersunk hole 15, which can reduce the length of the sleeve 541 and the hand-held rotating handle 542 exposed outside the box body 1, so as to reduce the probability of the sleeve 541 and the hand-held rotating handle 542 colliding with other objects outside the box body 1; it can also improve the aesthetics of the box body 1. The part of the handle reinforcing arm 544 that exceeds the hand-held rotating handle 542 is close to the outer wall of the box body 1 and is located on the outer periphery of the circular countersunk hole 15, which is convenient for the user to turn the rotating member 54. Of course, in other embodiments, the rotation angle range of the turning member 54 can also be determined according to the swing angle of the power wheel 53 rotating around the rotating shaft 51, and a fan-shaped countersunk hole is recessed on the side wall of the box body 1 connected to the rotating shaft 51 within the rotation angle range. The fan-shaped countersunk hole takes the axis of the rotating shaft 51 as the center of the circle and the length of the hand-held rotating handle 542 as the radius.

[0044] See also Figure 6 and Figure 7, the rotating shaft 51 is equipped with a positioning member 55 that can limit the rotation angle of the rotating shaft 51. The rotating shaft 51 is a hollow shaft, and the positioning member 55 can be slidably connected to the hollow shaft hole of the rotating shaft 51. The positioning member 55 includes a hand-pressing portion 551 that penetrates the rotating member 54 and protrudes from the outside of the box body, a sliding body portion 552 that can slide axially along the rotating shaft 51, and a blocking piece 553 that protrudes from the outer periphery of the rotating shaft 51 to limit the rotation angle of the rotating shaft 51. The rotating shaft 51 is provided with a receiving groove 511 for the blocking piece 553 to extend out, and the receiving groove 511 extends axially on the rotating shaft 51. The blocking piece 553 protrudes from the sliding body portion 552 and penetrates the receiving groove 511. When the sliding body portion 552 of the positioning member 55 slides axially relative to the rotating shaft 51, the blocking piece 553 can slide together with the sliding body portion 552. The baffle 553 can slide axially along the accommodating groove 511, and slide from the rotating shaft positioning portion 411 of the support body 41 to the baffle displacement portion 412 of the support body 41. The rotating shaft positioning portion 411 of the support body 41 is provided with a screw-in positioning groove 4111 and a screw-out positioning groove 4112 that cooperate with the baffle 553 of the positioning member 55, and the two notches of the screw-in positioning groove 4111 and the screw-out positioning groove 4112 are both axially arranged. The screw-in positioning groove 4111 and the screw-out positioning groove 4112 respectively limit the swing angle of the power wheel 53 to retract into the box body and protrude out of the box body. The baffle displacement portion 412 of the support body 41 is a hollow space that can accommodate the baffle 553 to rotate freely around the rotating shaft 51. When the baffle 553 of the positioning member 55 slides to the baffle shifting portion 412, the rotating member 54 is pulled to rotate the shaft 51, and the baffle 553 of the positioning member 55 rotates with the shaft 51, and the baffle 553 can be rotated to the corresponding position angle of being screwed into the positioning groove 4111 or screwed out of the positioning groove 4112. When the baffle 553 is located at the screwed out positioning groove 4112, the power wheel 53 protrudes out of the box body and contacts the ground with the four auxiliary wheels 10, and each contact point is in the same plane, which is conducive to the power wheel 53 driving the four auxiliary wheels 10 to rotate and drive the smart suitcase to move; when the baffle 553 is located at the screwed into the positioning groove 4111, the power wheel 53 retracts into the box body, which can prevent the power wheel 53 from contacting the ground.

[0045] See also Figures 6 to 9, the hand-pressing portion 551 and the sliding body portion 552 of the positioning member 55 are fixedly connected. The hand-pressing portion 551 is a first cylinder protruding from the outside of the box body 1. The sliding body portion 552 is a second cylinder matched with the hollow shaft hole of the rotating shaft 51. The diameter of the hand-pressing portion 551 is smaller than the diameter of the sliding body portion 552. The end surface of the limiting plate 543 of the rotating member 54 is provided with a connecting hole 545 that matches and connects the hand-pressing portion 551. The diameter of the connecting hole 545 is also smaller than the diameter of the sliding body portion 552. The rotating member 54 can limit the sliding body portion 552 from protruding from the outside of the box body 1 through the limiting plate 543. An elastic member 56 is installed between the sliding body portion 552 and the rotating shaft 51. The elastic member 56 is a spring, which is installed in the hollow shaft hole of the rotating shaft 51, one end of which is connected to the sliding body portion 552 of the positioning member 55, and the other end is connected to the rotating shaft 51. The part of the rotating shaft 51 connected with the spring is provided with a stopper 512, which can facilitate the installation of the spring. The positioning member 55 can slide the sliding body 552 toward the rotating shaft positioning part 411 of the support body 41 through the extension force of the spring, so that the blocking piece 553 can slide into the screw-in positioning groove 4111 or the screw-out positioning groove 4112, and prevent the blocking piece 553 from being separated from the screw-in positioning groove 4111 or the screw-out positioning groove 4112; at the same time, the hand-pressing part 551 can be kept protruding from the outside of the box body.

[0046] The user can make the power wheel 53 be in a state of protruding out of the box or retracted into the box by pulling the rotating member 54 and pressing the hand-pressing portion 551 of the positioning member 55. When the power wheel 53 is switched from the state of protruding out of the box to the state of retracting into the box, the user first presses the hand-pressing portion 551 hard so that the positioning member 55 overcomes the extension force of the spring, and the baffle 553 of the positioning member 55 is separated from the screw-out positioning groove 4112 and slides to the baffle replacement portion 412 of the support body 41; the rotating member 54 is pulled again so that the baffle 553 rotates around the rotating shaft 51 to the angle corresponding to the position of the screw-in positioning groove 4111; then the user gradually reduces the pressing force applied to the hand-pressing portion 551, and the pressure is less than the extension force of the spring, and the baffle 553 of the positioning member 55 slides into the screw-in positioning groove 4111 by the extension force of the spring, and the power wheel 53 is switched to the state of retracting into the box. On the contrary, when the power wheel 53 is converted from the state of being retracted into the box body to the state of being protruded out of the box body, the user first presses the hand-pressing portion 551 hard so that the positioning member 55 overcomes the extension force of the spring, and the blocking piece 553 of the positioning member 55 disengages from the screw-in positioning groove 4111 and slides to the blocking piece replacement portion 412 of the support body 41; the rotating member 54 is pulled in the opposite direction again, so that the blocking piece 553 rotates around the rotating shaft 51 to the angle corresponding to the position of the screw-out positioning groove 4112; then the user gradually reduces the pressing force applied to the hand-pressing portion 551, and it is less than the extension force of the spring, and the blocking piece 553 of the positioning member 55 slides into the screw-out positioning groove 4112 by the extension force of the spring, and at this time, the power wheel 53 can be switched to the state of being protruded out of the box body.

[0047] In this embodiment, when the power wheel 53 protrudes out of the box, the auxiliary wheel 10 is driven by the power wheel 53 and drives the smart suitcase to move together. At this time, the smart suitcase is in a non-manual moving mode; when the power wheel 53 is retracted into the box, the smart suitcase is supported on the ground by the auxiliary wheel 10, and the user can drag or push the smart suitcase to move by the pull rod 2. At this time, the smart suitcase is in a manual moving mode. The user can arbitrarily choose one of the two moving modes to move the smart suitcase by adjusting the height of the liftable power wheel. This improves the user experience of the smart suitcase.

[0048] See also Figure 1 In this embodiment, the outer wall of the box body 1 on which the rotating member 54 is installed is marked with a first scale line 16 and a second scale line 17. The first scale line 16 and the second scale line 17 are position lines of two pull angles of the hand-held rotating handle 542 of the rotating member 54. The first scale line 16 and the second scale line 17 respectively correspond to the two rotation angles of the rotating shaft 51 of the power wheel 53 in two states. The first scale line 16 corresponds to the state in which the power wheel 53 is protruding out of the box body; the second scale line 17 corresponds to the state in which the power wheel 53 is retracted into the box body. When the user switches the two states of the power wheel 53, he only needs to observe whether the scale line on the rotating member 54 corresponds to the first scale line 16 or the second scale line 17, which is simple and practical.

[0049] Of course, in other embodiments, the first stopper and the second stopper may be provided at the stopper shifting portion 412 of the support body 41. The stopper 553 of the positioning member 55 is located between the first stopper and the second stopper. The positions of the first stopper and the second stopper correspond to the two rotation angles of the rotating shaft 51 of the power wheel 53 in the two states, respectively. The position of the first stopper corresponds to the state in which the power wheel 53 is protruding out of the box; the position of the second stopper corresponds to the state in which the power wheel 53 is retracted into the box. When the user switches the two states of the power wheel 53, he only needs to pull the rotating member 54 when the stopper 553 slides to the stopper shifting portion 412, and when the stopper 553 contacts the first stopper or the second stopper and cannot rotate, gradually release the hand-pressing portion 551 to complete the switching of the two states of the power wheel 53. No observation is required, which is convenient and practical.

[0050] See also Figure 2 , Fig.10a , Fig.10b 11 a and 11 b, in this embodiment, there are two power wheel modules 3, namely, a first module 3a and a second module 3b. The first module 3a and the second module 3b are respectively installed on the left and right sides of the bottom of the box body 1, and the first module 3a and the second module 3b are symmetrically arranged.

[0051] The first module 3a includes a first fixed body 4a fixed to the left side of the box body 1, and a first power wheel lifting assembly 5a installed on the first fixed body 4a. A first support body 41a for installing the first power wheel lifting assembly 5a is provided inside the first fixed body 4a. The extension of the first support body 41a is provided with a first rotating shaft positioning portion 411a, a first baffle shifting portion 412a and a first rotating shaft connecting portion 413a. The first power wheel lifting assembly 5a includes a first rotating shaft 51a installed on the first support body 41a of the first fixed body 4a, a first connecting rod 52a connected to the first rotating shaft 51a, a first power wheel 53a installed on the first connecting rod 52a, and a first force member capable of driving the first rotating shaft 51a to rotate. The first force member is a first rotating member 54a located outside the box body 1. The first rotating member 54a is sleeved on the first rotating shaft 51a protruding from the outside of the box body. The first fixed body 4a is provided with a first opening 415 for allowing the first power wheel 53a to pass through, and the box body 1 is provided with a second opening opposite to the first opening 415 and for allowing the first power wheel 53a to pass through. Pulling the first rotating member 54a can drive the first power wheel 53a to protrude out of the box body or retract into the box body. The first rotating shaft 51a is provided with a first positioning member 55a, and the first rotating shaft positioning portion 411a of the first supporting body 41a is provided with a first screw-in positioning groove and a first screw-out positioning groove that cooperate with the first positioning member 55a. The first positioning member 55a includes a first hand-pressing portion 551a that penetrates the first rotating member 54a and protrudes out of the box body, a first sliding body portion that can slide along the first rotating shaft 51a, and a first baffle that protrudes out of the first rotating shaft 51a to cooperate with the first screw-in positioning groove and the first screw-out positioning groove. The first rotating shaft 51a is provided with a first receiving groove for allowing the first baffle to extend, and the first baffle protrudes from the first sliding body portion and penetrates the first receiving groove. A first elastic member is installed between the first sliding body and the first rotating shaft 51a, and the first elastic member is a spring. The first positioning member 55a slides toward the first rotating shaft positioning portion 411a of the first supporting body 41a through the extension force of the spring, so that the first baffle of the first positioning member 55a slides into the first screw-in positioning groove or the first screw-out positioning groove, and prevents the first baffle from being separated from the first screw-in positioning groove or the first screw-out positioning groove. When the first baffle is located in the first screw-out positioning groove, the first power wheel 53a protrudes out of the box body and contacts the ground with the four auxiliary wheels 10, and each contact point is in the same plane, which is conducive to the first power wheel 53a driving the four auxiliary wheels 10 to rotate and drive the smart suitcase to move; when the first baffle is located in the first screw-in positioning groove, the first power wheel 53a shrinks into the box body, which can prevent the first power wheel 53a from contacting the ground.

[0052] The second module 3b includes a second fixed body 4b fixed to the right side of the box body 1, and a second power wheel lifting assembly 5b installed on the second fixed body 4b. The second fixed body 4b is provided with a second support body 41b for installing the second power wheel lifting assembly 5b. The extension of the second support body 41b is provided with a second shaft positioning portion 411b, a second baffle shifting portion 412b and a second shaft connecting portion 413b. The second power wheel lifting assembly 5b includes a second shaft 51b installed on the second support body 41b of the second fixed body 4b, a second connecting rod 52b connected to the second shaft 51b, a second power wheel 53b installed on the second connecting rod 52b, and a second force member capable of driving the second shaft 51b to rotate. The second force member is a second rotating member 54b located outside the box body 1. The second rotating member 54b is sleeved on the second shaft 51b protruding from the outside of the box body. The second fixed body 4b is provided with a first opening 415 for the second power wheel 53b to pass through, and the box body 1 is provided with a second opening opposite to the first opening 415 and for the second power wheel 53b to pass through. Pulling the second rotating member 54b can drive the second power wheel 53b to protrude out of the box body or retract into the box body. The second rotating shaft 51b is provided with a second positioning member 55b, and the second rotating shaft positioning portion 411b of the second supporting body 41b is provided with a second screw-in positioning groove and a second screw-out positioning groove that cooperate with the second positioning member 55b. The second positioning member 55b includes a second hand-pressing portion 551b that penetrates the second rotating member 54b and protrudes out of the box body, a second sliding body portion that can slide along the second rotating shaft 51b, and a second baffle that protrudes out of the second rotating shaft 51b to cooperate with the second screw-in positioning groove and the second screw-out positioning groove. The second rotating shaft 51b is provided with a second receiving groove for the second baffle to extend out, and the second baffle protrudes from the second sliding body portion and penetrates the second receiving groove. A second elastic member is installed between the second sliding body and the second rotating shaft 51b, and the second elastic member is a spring. The second positioning member 55b slides toward the second rotating shaft positioning portion 411b of the second supporting body 41b through the extension force of the spring, so that the second baffle of the second positioning member 55b slides into the second screw-in positioning groove or the second screw-out positioning groove, and prevents the second baffle from being separated from the second screw-in positioning groove or the second screw-out positioning groove. When the second baffle is located in the second screw-out positioning groove, the second power wheel 53b protrudes out of the box body and contacts the ground with the four auxiliary wheels 10, and each contact point is in the same plane, which is conducive to the second power wheel 53b driving the four auxiliary wheels 10 to rotate and drive the smart suitcase to move; when the second baffle is located in the second screw-in positioning groove, the second power wheel 53b shrinks into the box body, which can prevent the second power wheel 53b from contacting the ground.

[0053] When the two power wheels 53 switch between the state of protruding out of the box and the state of retracting into the box, the user first presses the two hand-pressed parts protruding from the two sides of the box 1 at the same time, and then pulls the two rotating parts on both sides of the box 1 to make the first rotating shaft 51a and the second rotating shaft 51b rotate in the same direction, and then loosens the two hand-pressed parts. In this embodiment, only one power wheel 53 can be used, that is, only one power wheel module is installed in the box 1; an enclosure layer can also be installed on the periphery of the first fixed body 4a and the second fixed body 4b to prevent dust from penetrating into the inside of the box 1 from between the two fixed bodies and contaminating the items placed in the box 1. Of course, in other embodiments, the first rotating shaft 51a and the second rotating shaft 51b in the two power wheel modules can be fixedly connected to facilitate the user to keep the first rotating shaft 51a and the second rotating shaft 51b rotating synchronously when pulling the two rotating parts.

[0054] See also Fig.12 The smart suitcase includes a pull rod base 6 for installing the pull rod 2. The pull rod base 6 includes a receiving body 61 connected to the pull rod 2, a fixing portion 62 extending from the receiving body 61 to the direction of the first fixed body 4a, and a connecting body 63 connecting the receiving body 61 and the fixing portion 62. The connecting body 63 is in an arc shape to buffer the reaction force transmitted from the bottom of the box body 1 to the pull rod 2. The connecting body 63 extends downward from the receiving body 61 to the top of the first fixed body 4a, so that the fixing portion 62 of the pull rod base 6 overlaps with the upper end surface of the first fixed body 4a, and the fixing portion 62 is fixedly connected to the first fixed body 4a. Of course, the fixing portion 62 of the pull rod base 6 can also be fixedly connected to the second fixed body 4b. A notch 64 is provided on the connecting body, which can save material processing costs and is beneficial to mold processing design.

[0055] In this embodiment, the receiving body 61 includes two pull rod insertion seats 65 and a receiving groove located between the two pull rod insertion seats 65. The pull rod 2 includes two support rods 21 respectively inserted into the two pull rod insertion seats 65. Of course, in other embodiments, the number of support rods 21 can also be one or more than three, and the number of support rods 21 depends on the size of the luggage case. The support rod 21 is a multi-stage retractable hollow rod, and extends from the inside of the box body 1 to the outside of the box body 1, which is convenient for the user to grasp the pull rod 2. Each pull rod insertion seat 65 includes a support base plate 651, a first protruding block 652 protruding from the end surface of the support base plate 651 toward the support rod 21 and extending into the inside of the support rod 21, and a second protruding block 653 protruding from the end surface of the support base plate 651 toward the support rod 21 and surrounding the outer periphery of the support rod 21. The cross section of the outer periphery of the first protruding block 652 matches the cross section of the inner periphery of the support rod 21. A plurality of reinforcing ribs 654 are provided between the first protruding block 652 and the second protruding block 653 to support the outer periphery of the support rod 21. The support rod 21 is inserted between the first protruding block 652 and the plurality of reinforcing ribs 654, so that the support rod 21 can be fixed to the pull rod base 6. The screw fixing hole of the pull rod insertion seat 65 is located on the second protruding block 653, and the screw passes through the fifth fixing portion of the axle fixing member and the screw fixing hole of the second protruding block 653, and is supported on the side of the support rod 21, so that the support rod 21 is further fixedly connected to the pull rod base 6.

[0056] Please refer to Figure 1 and Figure 2 In this embodiment, the motor control box 11 of the smart suitcase is arranged between the two supporting rods 21, which effectively utilizes the internal space of the box body 1 and is conducive to placing more luggage in the box body 1. The motor control box 11 includes a box body, a box cover, and a box body fixing portion 112 arranged on the box body. The box body is attached to the inner wall of the box body 1 and is fixed to the inner wall of the box body 1 by screws. The box body fixing portion 112 is located in the receiving groove of the pull rod base 6 and is fixedly connected to the receiving body 61 of the pull rod base 6. The installation firmness of the motor control box 11 is further improved, and the phenomenon of the motor control box 11 loosening when the smart suitcase moves on an uneven road surface is reduced.

[0057] In this embodiment, when the camera module 12 is assembled on the box body 1, its camera 14 is located on the inner side of the box body 1. A through hole for the camera 14 to shoot is provided on the side wall of the box body 1. The position of the through hole corresponds to the position of the camera 14. The camera 14 is located on the inner side of the box body 1 and can shoot through the through hole. Of course, the camera 14 can also be embedded in the through hole and shoot through the through hole. The side wall of the box body 1 is installed with a transparent base layer located on the camera 14. The camera 14 can shoot through the transparent base layer. The transparent base layer can also prevent dust from covering the lens surface of the camera 14. The material of the transparent base layer is glass, acrylic or resin optical material. The camera module 12 can also be an intelligent electronic device, such as a smart phone, a tablet computer or a digital camera, which reduces the production cost of the intelligent suitcase and is convenient for the public to use. A fixing member for fixing the camera module 12 is installed on the box body 1. Of course, in other embodiments, the camera module 12 can be fixedly connected to the motor control box 11, or it can be assembled inside the motor control box 11, which improves the installation firmness of the camera module 12. The camera 14 is connected to the image processing module. The camera 14 is used to capture the image information of the user's movement and feed it back to the image processing module, which is conducive to the smart suitcase to move and turn with the user. The camera 14 and the image processing module of the smart suitcase are integrated into the camera module 12. When the worker assembles the camera 14 and the image processing module of the smart suitcase, he only needs to assemble the camera module 12 on the box body 1 to complete the assembly of the camera 14. The assembly speed is fast, which is conducive to improving the convenience of installation. In addition, the signal lines of the camera 14 and the image processing module are also integrated in the camera module 12, so there will be no phenomenon of bumping against the signal line connector when placing items in the suitcase.

[0058] In this embodiment, the camera module 12 and the power supply 13 are installed on the side of the pull rod 2 and fixedly connected to the inner wall of the box body 1. The shooting direction of the camera 14 corresponds to the travel direction of the two power wheels 53. Of course, the camera module 12 and the power supply 13 can also be installed between the two rods 21 of the pull rod 2.

[0059] Both powered wheels 53 are wheel hub motor wheels. The control system is connected to the signals of the two wheel hub motor wheels to realize the forward, backward and steering operations of the smart suitcase. Compared with the drive structure of the motor combined with the reducer and the differential, the drive structure using the wheel hub motor wheel is smaller in size and convenient to be installed in the powered wheel module 3, and only occupies a small space inside the box 1. The outer wall of the box 1 is recessed with four accommodating grooves 511 for installing four auxiliary wheels 10, which improves the aesthetics of the smart suitcase. The four auxiliary wheels 10 are respectively located at the four corners below the box 1. When the smart suitcase accompanies the user and is located in front of or behind the user, the four auxiliary wheels 10 are driven by the two powered wheels 53, and rotate together to move the smart suitcase. In this embodiment, the auxiliary wheels 10 are universal wheels.

[0060] Embodiment 2

[0061] See also Fig.13 , Fig.14a and Fig.14b The difference between this embodiment and the first embodiment is that the first fixed body 74a and the second fixed body 74b are connected by only one rotating shaft 71, and the first power wheel 72a and the second power wheel 72b are connected by the rotating shaft 71; only one rotating member 73 is installed on the outside of the box, and the rotating shaft 71 can be rotated by pulling the rotating member 73.

[0062] In this embodiment, there are two power wheel modules 7, namely a first module 7a and a second module 7b. The first module 7a and the second module 7b are respectively installed on the right and left sides of the bottom of the box.

[0063] The first module 7a includes a first fixed body 74a fixed to the right side of the box body, and a first power wheel lifting assembly 75a installed on the first fixed body 74a. A first support body 76a for installing the first power wheel lifting assembly 75a is provided inside the first fixed body 74a. The extension of the first support body 76a is provided with a rotating shaft positioning portion, a baffle shifting portion and a first rotating shaft connecting portion. The first power wheel lifting assembly 75a includes a rotating shaft 71 installed on the first support body 76a of the first fixed body 74a, a first connecting rod connected to the rotating shaft 71, a first power wheel 72a installed on the first connecting rod and a force member capable of driving the rotating shaft to rotate. The force member is a rotating member 73 located outside the box body. The rotating member 73 is sleeved on the rotating shaft 71 protruding from the outside of the box body. A positioning member is provided on the rotating shaft 71, and the rotating shaft positioning portion of the first support body 76a is provided with a screw-in positioning groove and a screw-out positioning groove that cooperate with the positioning member. The positioning member includes a hand-pressing portion 77 that penetrates the rotating member and protrudes from the outside of the box, a sliding body that can slide along the rotating shaft, and a blocking piece that protrudes from the rotating shaft to cooperate with the positioning groove when rotating in and out of the positioning groove. The rotating shaft is provided with a receiving groove for the blocking piece to extend out, and the blocking piece protrudes from the sliding body and penetrates the receiving groove.

[0064] The second module 7b includes a second fixed body 74b fixed to the left side of the box body, and a second power wheel lifting assembly 75b installed on the second fixed body 74b. A second support body 76b for installing the second power wheel lifting assembly 75b is provided inside the second fixed body 74b. The rotating shaft 71 installed on the first fixed body 74a extends to the second fixed body 74b, and one end of the rotating shaft 71 is installed on the first fixed body 74a and the other end is installed on the second fixed body 74b. The extension of the second support body 76b is provided with a second rotating shaft connecting portion, and the extending end of the rotating shaft extending to the second fixed body 74b is installed on the second fixed body 74b through the second rotating shaft connecting portion. The second power wheel lifting assembly 75b includes a second connecting rod connected to the extending end of the rotating shaft, and a second power wheel 72b installed on the second connecting rod.

[0065] The first power wheel 72a and the second power wheel 72b are both fixedly connected to the rotating shaft 71. Pulling the rotating member 73 can make the first power wheel 72a and the second power wheel 72b rise and fall simultaneously. The first fixed body 74a and the second fixed body 74b are respectively provided with two first openings for the first power wheel 72a and the second power wheel 72b to pass through, and the box body is provided with two second openings that are opposite to the two first openings and for the first power wheel 72a and the second power wheel 72b to pass through. Pulling the rotating member can simultaneously drive the first power wheel 72a and the second power wheel 72b to protrude out of the box body or retract into the box body.

[0066] An elastic member is installed between the sliding body of the positioning member and the rotating shaft, and the elastic member is a spring. The positioning member slides toward the rotating shaft positioning portion of the first support body 76a through the extension force of the spring, so that the blocking piece of the positioning member slides into the screw-in positioning groove or the screw-out positioning groove, and prevents the blocking piece from being separated from the screw-in positioning groove or the screw-out positioning groove. When the blocking piece is located in the screw-out positioning groove, the first power wheel 72a and the second power wheel 72b both protrude out of the box body and contact the ground with the four auxiliary wheels, and each contact point is in the same plane, which is conducive to the first power wheel 72a and the second power wheel 72b driving the four auxiliary wheels to rotate and drive the smart suitcase to move; when the blocking piece is located in the screw-in positioning groove, the first power wheel 72a and the second power wheel 72b both shrink into the box body, which can prevent the first power wheel 72a and the second power wheel 72b from contacting the ground.

[0067] When the two power wheels switch between the state of protruding out of the box and the state of retracting into the box, the user first presses the hand-pressing portion 77 protruding out of the box, then pulls the rotating member 73 to rotate the shaft 71, and then releases the hand-pressing portion 77.

[0068] Embodiment 3

[0069] See also Fig.15 , Fig.16a and Fig.16b The difference between this embodiment and the second embodiment is that the force applying member 8 drives the rotating shaft 91 to rotate through a pulling member 81.

[0070] In this embodiment, there are two power wheel modules 9, namely, a first module 9a and a second module 9b. The first module 9a and the second module 9b are respectively installed on the right and left sides of the bottom of the box.

[0071] The first module 9a includes a first fixed body 92a fixed to the right side of the box body 1, and a first power wheel 95a lifting assembly 93a installed on the first fixed body 92a. A first support body 94a for installing the first power wheel 95a lifting assembly 93a is provided inside the first fixed body 92a. The extension of the first support body 94a is provided with a first rotating shaft connecting portion. The first power wheel 95a lifting assembly 93a includes a rotating shaft 91 installed on the first support body 94a of the first fixed body 92a, a first connecting rod connected to the rotating shaft 91, a first power wheel 95a installed on the first connecting rod, and a force applying member 8 capable of driving the rotating shaft 91 to rotate.

[0072] The second module 9b includes a second fixed body 92b fixed to the left side of the box body, and a second power wheel 95b lifting assembly 93b installed on the second fixed body 92b. The interior of the second fixed body 92b is provided with a second support body 94b for installing the second power wheel 95b lifting assembly 93b. The rotating shaft 91 installed on the first fixed body 92a extends to the second fixed body 92b, and one end of the rotating shaft 91 is installed on the first fixed body 92a and the other end is installed on the second fixed body 92b. The extension of the second support body 94b is provided with a second rotating shaft connecting portion, and the extending end of the rotating shaft extending to the second fixed body 92b is installed on the second fixed body 92b through the second rotating shaft connecting portion. The second power wheel 95b lifting assembly 93b includes a second connecting rod connected to the extending end of the rotating shaft, and a second power wheel 95b installed on the second connecting rod.

[0073] The force-applying member 8 includes a knob 82 installed on the box body 1, and a pull member 81 having one end connected to the knob 82 and the other end connected to the first connecting rod. The other end of the pull member 81 can also be connected to the second connecting rod. The pull member 81 is a metal rod. When the user twists the knob 82, the torque of the knob 82 is transmitted to the pull member 81, which changes into the tension of the pull member 81. The force-applying member 8 causes the rotating shaft 91 to rotate through the tension of the pull member 81. The first power wheel 95a and the second power wheel 95b are both fixedly connected to the rotating shaft 91. Twisting the knob 82 can cause the first power wheel 95a and the second power wheel 95b to rise and fall simultaneously. A locking member (not shown in the figure) that limits the rotation of the knob 82 is provided on the box body 1, so that the first power wheel 95a and the second power wheel 95b can maintain a state of protruding out of the box body or a state of retracting into the box body.

[0074] The first fixed body 92a and the second fixed body 92b are respectively provided with two first openings through which the first power wheel 95a and the second power wheel 95b pass, and the box body 1 is provided with two second openings opposite to the two first openings and through which the first power wheel 95a and the second power wheel 95b pass. Twisting the knob 82 can simultaneously drive the first power wheel 95a and the second power wheel 95b to protrude out of the box or retract into the box.

[0075] When the knob 82 is loosened, the pull member 81 moves downward, and the first power wheel 95a and the second power wheel 95b both protrude out of the box and are in contact with the ground together with the four auxiliary wheels. The contact points are in the same plane, which is conducive to the first power wheel 95a and the second power wheel 95b driving the four auxiliary wheels to rotate and drive the smart suitcase to move; when the knob 82 is tightened, the pull member 81 moves upward, and the first power wheel 95a and the second power wheel 95b both shrink into the box, which can prevent the first power wheel 95a and the second power wheel 95b from contacting the ground.

[0076] When the two power wheels switch between the state of protruding out of the box and the state of retracting into the box, the user first loosens the locking piece clamped on the knob 82, then tightens or loosens the knob 82, and then clamps the locking piece on the knob 82.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Therefore, although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can still be modified or replaced by equivalents. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A smart suitcase, characterized in that: It includes a box body, auxiliary wheels and a power wheel module arranged at the bottom of the box body, wherein the power wheel module includes a liftable power wheel; The power wheel module includes a fixed body fixed in the box body, a power wheel lifting assembly installed on the fixed body, the power wheel lifting assembly includes a rotating shaft installed on the fixed body, a connecting rod connected to the rotating shaft and a force-applying member capable of driving the rotating shaft to rotate, the power wheel is installed on the connecting rod, the fixed body is provided with a first opening for the power wheel to pass through, the box body is provided with a second opening opposite to the first opening and for the power wheel to pass through, and the force-applying member can drive the power wheel to pass through the first opening and the second opening to protrude out of the box body or retract into the box body; The power wheel is a hub motor wheel; The force-applying member is a rotating member located outside the box body, and the rotating member includes a sleeve sleeved on the rotating shaft, a hand-held rotating handle protruding in a radial direction from a part of the outer circumference of the sleeve, a limit plate fixedly connected to the end face of the sleeve, and a handle strengthening force arm protruding in a radial direction from a part of the outer circumference of the limit plate, the handle strengthening force arm is fixedly fitted to the hand-held rotating handle, the length of the handle strengthening force arm is greater than the length of the hand-held rotating handle, the sleeve is fixedly connected to the rotating shaft by a pin shaft, and a circular countersunk hole is recessed on the side wall of the box body connected to the rotating shaft, the circular countersunk hole takes the axis center of the rotating shaft as the center of the circle, takes the length of the hand-held rotating handle as the radius, and the depth of the circular countersunk hole is equal to the width of the sleeve; The rotating shaft is equipped with a positioning member that can limit the rotation angle of the rotating shaft. The positioning member includes a hand-pressing portion that penetrates the rotating member and protrudes from the outside of the box body, a sliding body portion that can slide along the axial direction of the rotating shaft, and a baffle that protrudes from the outer periphery of the rotating shaft to limit the rotation angle of the rotating shaft. The rotating shaft is provided with a receiving groove for accommodating the extending of the baffle, and the receiving groove extends axially on the rotating shaft. The baffle protrudes from the sliding body portion and penetrates the receiving groove. When the sliding body portion of the positioning member slides axially relative to the rotating shaft, the baffle can slide with the sliding body portion. The baffle can slide axially along the receiving groove and slide from the rotating shaft positioning portion of the support body to the baffle displacing portion of the support body. The rotating shaft positioning portion of the support body is provided with a screw-in positioning groove and a screw-out positioning groove that cooperate with the baffle of the positioning member, and the two notches of the screw-in positioning groove and the screw-out positioning groove are both axially arranged.

2. The smart luggage according to claim 1, characterized in that: There are two power wheel modules, namely a first module and a second module; The first module includes a first fixed body fixed in the box, a first power wheel lifting assembly installed on the first fixed body, and the first power wheel lifting assembly includes a first rotating shaft installed on the first fixed body, a first connecting rod connected to the first rotating shaft, a first power wheel installed on the first connecting rod, and a first force applying member capable of driving the first rotating shaft to rotate; The second module includes a second fixed body fixed in the box body, a second power wheel lifting assembly installed on the second fixed body, the second power wheel lifting assembly includes a second rotating shaft installed on the second fixed body, a second connecting rod connected to the second rotating shaft, a second power wheel installed on the second connecting rod, and a second force-applying member capable of driving the second rotating shaft to rotate.

3. The smart luggage according to claim 2, characterized in that: The first force applying member and the second force applying member are a first rotating member and a second rotating member respectively located at two outer sides of the box body.

4. The smart luggage according to claim 3, characterized in that: The first rotating shaft and the second rotating shaft are respectively provided with a first positioning member and a second positioning member, and the first fixing body is provided with a first screw-in positioning groove and a first screw-out positioning groove matched with the first positioning member; The second fixing body is provided with a second screw-in positioning groove and a second screw-out positioning groove matched with the second positioning member.

5. The smart suitcase according to claim 4, characterized in that: The first positioning member includes a first hand-pressing portion penetrating the first rotating member and protruding out of the outer side of the box body, a first sliding body portion that can slide along the first rotating shaft, and a first blocking piece that protrudes out of the first rotating shaft and is used to cooperate with the first screw-in positioning groove and the first screw-out positioning groove; a first elastic member is installed between the first sliding body portion and the first rotating shaft; The second positioning member includes a second hand-pressing portion that penetrates the second rotating member and protrudes from the outside of the box body, a second sliding body portion that can slide along the second rotating shaft, and a second blocking piece that protrudes from the second rotating shaft and is used to cooperate with the second screw-in positioning groove and the second screw-out positioning groove; a second elastic member is installed between the second sliding body portion and the second rotating shaft.

6. The smart luggage according to claim 5, characterized in that: The smart luggage case comprises a pull rod base, and the pull rod base comprises a receiving body connected to the pull rod and a fixing part extending from the receiving body, wherein the fixing part is fixedly connected to the first fixing body or the second fixing body.

7. The smart suitcase according to claim 1, characterized in that: There are two fixed bodies, namely the first fixed body and the second fixed body, one end of the rotating shaft is installed on the first fixed body, and the other end is installed on the second fixed body; there are two connecting rods, namely the first connecting rod and the second connecting rod; there are two power wheels, namely the first power wheel connected to the first connecting rod and the second power wheel connected to the second connecting rod.

8. The smart suitcase according to claim 7, characterized in that: The first fixing body is provided with a screw-in positioning groove and a screw-out positioning groove which cooperate with the positioning member.

9. The smart luggage according to claim 8, characterized in that: An elastic member is installed between the sliding body and the rotating shaft.

10. The smart suitcase according to claim 9, characterized in that: The smart luggage case comprises a pull rod base, and the pull rod base comprises a receiving body connected to the pull rod and a fixing part extending from the receiving body, wherein the fixing part is fixedly connected to the first fixing body or the second fixing body.

11. The smart luggage according to claim 7, characterized in that: The force applying member comprises a knob installed on the box body, and a pulling member with one end connected to the knob and the other end connected to the first connecting rod or the second connecting rod.

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