CN210761048U - Convenient trolley capable of traveling on plane, climbing stairs and carrying goods by people - Google Patents
Convenient trolley capable of traveling on plane, climbing stairs and carrying goods by people Download PDFInfo
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- CN210761048U CN210761048U CN201921378894.2U CN201921378894U CN210761048U CN 210761048 U CN210761048 U CN 210761048U CN 201921378894 U CN201921378894 U CN 201921378894U CN 210761048 U CN210761048 U CN 210761048U
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Abstract
The utility model relates to a plane running and stair climbing convenient trolley for people to carry goods, which belongs to the technical field of convenient trolleys and comprises a roller train and a frame with a carrying basket, wherein the whole frame is approximately of a cuboid structure, the roller train comprises a pair of walking wheels, the two walking wheels are distributed along one diagonal line at the bottom of the frame at an angle, and each walking wheel is provided with an independent driving unit; the roller group also comprises a pair of radial deformation wheels which can be deformed in the radial direction, and each step wheel is provided with one radial deformation wheel and is arranged on the same step wheel shaft in a penetrating way; and the frame is provided with a linkage type deformation driving mechanism for driving all the radial deformation wheels to synchronously and radially deform. When the trolley runs normally, only the walking wheels are used for supporting the ground, and when the trolley climbs stairs, only the two radial deformation wheels with increased radial sizes are used for supporting the step surfaces of the stairs, so that the trolley has the functions of plane running and stair climbing.
Description
Technical Field
The utility model relates to a convenient dolly technical field particularly, is a with convenient dolly of people's year thing.
Background
At present, the object-carrying trolley following the person is applied, but the object-carrying trolley following the person in the prior art cannot climb up stairs, so that the object-carrying trolley following the person is limited in use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a plane is gone and is climbed stair and carry convenient dolly of thing with the people, is convenient for carry the thing, can climb stair to keep balance and stability under all operating modes that travel.
The purpose of the utility model is realized like this: a plane running and stair climbing and manned goods carrying convenient trolley comprises a roller train and a frame with a carrying basket, wherein the whole frame is of a cuboid structure, the roller train comprises a pair of stepping wheels which roll on the ground during normal running and are rotatably arranged at the bottom of the frame through a horizontally extending stepping wheel shaft, the two stepping wheels are distributed along one diagonal line at the bottom of the frame in an angle mode, and each stepping wheel is provided with an independent driving unit;
the roller group also comprises a pair of radial deformation wheels capable of radial deformation, and each step wheel is provided with a radial deformation wheel and is arranged on the same step wheel shaft in a penetrating way;
the radial deformation wheel comprises a main wheel body and four telescopic sliding blocks which are distributed in a cross shape, the main wheel body is coaxially and fixedly sleeved on a stepping wheel shaft, four sliding guide grooves which are distributed in the cross shape are formed in the main wheel body, the four telescopic sliding blocks are respectively and slidably mounted in the four sliding guide grooves, the four sliding guide grooves are circumferentially and uniformly distributed with the geometric center of the main wheel body, each sliding guide groove is internally provided with a telescopic spring, the inner side ends of the telescopic sliding blocks are located in the sliding guide grooves and are elastically connected with the inner parts of the sliding guide grooves through the telescopic springs, the sliding guide grooves are exposed out of the outer side ends of the telescopic sliding blocks, a virtual circle with the maximum outer diameter larger than the outer diameter of the stepping wheel is formed at the outer side ends of the four telescopic sliding blocks when the radial deformation wheel is used, and a linkage type deformation driving mechanism for driving.
Furthermore, the roller group also comprises a pair of universal wheels which keep a gap with the ground when the vehicle runs normally, and the two universal wheels are distributed along the other diagonal of the bottom of the vehicle frame and staggered with the two walking wheels.
Furthermore, the carrying basket is provided with a carrying groove with an upward opening and a V-shaped cross section structure, the bottom of the carrying groove is of a strip-shaped structure, and the bottom of the carrying groove is superposed with a diagonal distribution connecting line of the two stepping wheels when viewed from a top projection view.
Furthermore, the deformation driving mechanism comprises a pair of movable abutting frames respectively corresponding to the two radial deformation wheels, each movable abutting frame is provided with a return spring coaxial with the stepping wheel shaft, each movable abutting frame is movably sleeved on the stepping wheel shaft and moves axially along the stepping wheel shaft, one side of each movable abutting frame is provided with four side convex blocks distributed in a cross shape, each side convex block is opposite to one sliding guide groove and can extend into the sliding guide groove to abut against the inner side end of the telescopic sliding block, the inner side end of the telescopic sliding block is of an inclined surface structure, each side convex block is provided with an abutting surface which is obliquely arranged and is in inclined surface contact with the inner side end of the telescopic sliding block, and the other side of each movable abutting frame is elastically connected with the frame through the return spring; the deformation actuating mechanism still includes a sharp drive assembly and a link bar subassembly, the link bar subassembly includes follower, gangbar, driven lever, the middle part of gangbar rotates to be connected on the frame and forms a pivot of rotating, follower one end, driven lever one end rotate respectively and connect the both ends of gangbar and form the link mechanism of horizontal activity, the frame is passed and contradict two activities respectively and support the frame to follower other end, driven lever other end activity, sharp drive assembly installs on the frame and near one of them radial deformation wheel, sharp drive assembly is used for driving the follower and carries out rectilinear motion in order to promote near activity support the frame.
Furthermore, the linear driving assembly is close to one shaft end of the driving cam, the linear driving assembly comprises a rocking handle, a torsional spring, a driving cam and a roller, the driving cam is integrally a round wheel, the axis of the driving cam is horizontally arranged, the driving cam is rotatably installed on the frame and rotates along the axis of the driving cam, the rocking handle is in linkage with the driving cam, the torsional spring is installed on the frame and can push the rocking handle obliquely upwards, a handle locking assembly for locking two locking positions of the rocking handle is installed at a position close to one shaft end of the driving cam, and the two locking positions of the rocking handle correspond to two states of extension and retraction of the telescopic slider respectively; the driving cam is characterized in that a curve guide groove extending in a spiral mode is formed in the peripheral wall of the driving cam, the driven piece is provided with a branch rod extending into the curve guide groove and is rotatably connected with a roller matched with the curve guide groove in a rolling mode, and the spiral central axis of the curve guide groove coincides with the axis of the driving cam.
Furthermore, the driven piece and one end of the driven rod, which is abutted against the movable support, are rotatably provided with balls rolling on the surface of the movable support.
Further, handle locking subassembly is equipped with latch hook, lower latch hook, the latch hook is in under the latch hook directly over, when flexible slider is in the state of stretching out the rocking handle supports and leans on under the latch hook downside and is locked, when flexible slider is in the retraction state the rocking handle supports and leans on under the latch hook and is locked, the rocking handle can be followed drive cam axial and finely tuned.
Furthermore, the outer side end of the telescopic sliding block is provided with a semicircular fan-shaped head, and the cambered surface of the semicircular fan-shaped head is arched outwards and is provided with a sawtooth surface.
The beneficial effects of the utility model reside in that:
1) the trolley can climb stairs, and can advance by utilizing the stepping wheel during normal running, when the trolley needs to climb the stairs, all the telescopic sliding blocks of the two radial deformation wheels are driven to extend by utilizing the deformation driving mechanism, so that the outer side ends of the four telescopic sliding blocks form a virtual circle with the maximum outer diameter larger than that of the stepping wheel during use, and the outer side ends of the telescopic sliding blocks support the step surface of the stairs, so that the trolley can conveniently climb the stairs;
2) the bottom of the carrying groove is of a strip structure, and the bottom of the carrying groove is coincided with a diagonal distribution connecting line of the two stepping wheels when viewed from a top projection view, when an article is put into the carrying groove, the article can automatically slide to the bottom of the carrying groove, and the gravity center of the article can be concentrated on the diagonal distribution connecting line of the two stepping wheels so as to keep the balance of the trolley;
3) the safety is guaranteed, the balance can be kept under all running conditions, the two universal wheels are used for assisting in maintaining the balance of the intelligent man-following trolley, the universal wheels are in a suspended state and cannot rotate at a certain height from the ground under normal conditions, when the intelligent man-following trolley inclines, the universal wheels can play a supporting role, and the universal wheels are placed in a stepping mode and opposite to the placement positions of the stepping wheels, supplement each other, and the balance and the stability of the intelligent man-following trolley are kept; the two universal wheels can ensure that the frame cannot topple over when required, the whole body achieves the problem of energy conservation and stability, and the two universal wheels are energy-saving and have complete functions.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a bottom schematic view of the present invention.
Fig. 3 is a schematic view of the arrangement of the deformation driving mechanism.
Fig. 4 is a schematic view of the principle of the radial deformation wheel expansion.
Fig. 5 is a schematic view of the principle of resetting of the radial deformation wheel.
Fig. 6 is an enlarged view of a portion a in fig. 5.
Fig. 7 is a schematic view showing the manner of mounting the extension spring.
Fig. 8 is a schematic view of the installation relationship of the telescopic slide block and the radial deformation wheel.
Fig. 9 is a structural view of the carrier basket.
FIG. 10 is a schematic view of the position of the rocker handle when the telescoping slide is extended.
Fig. 11 is an enlarged view of a portion B in fig. 10.
FIG. 12 is a schematic view of the position of the rocker handle with the telescoping slide retracted.
FIG. 13 is a schematic diagram showing the arrangement positions of the stepping wheel, the universal wheel, the hub motor and the storage battery.
Detailed Description
The invention will be further described with reference to the accompanying figures 1-13 and the specific embodiments.
As shown in fig. 1 and 2, a plane-driving and stair-climbing convenience cart for carrying people comprises a trolley group and a frame 1 with a carrying basket 2, wherein the whole body of the frame 1 is of a cuboid structure, the trolley group comprises a pair of stepping wheels 3 which roll on the ground and are rotatably arranged at the bottom of the frame 1 through a horizontally extending stepping wheel shaft 4, and the two stepping wheels 3 are distributed along one diagonal line at the bottom of the frame 1.
The roller group also comprises a pair of radial deformation wheels 5 which can be deformed in the radial direction, and each step wheel 3 is provided with one radial deformation wheel 5 and is arranged on the same step wheel shaft 4 in a penetrating way.
As shown in fig. 10 to 12, the radial deforming wheel 5 includes a main wheel body 501 and four telescopic sliding blocks 502 distributed in a cross shape, the main wheel body 501 is coaxially and fixedly sleeved on the stepping wheel shaft 4, the main wheel body 501 is provided with four sliding guide grooves 501a distributed in a cross shape, the four telescopic sliding blocks 502 are respectively slidably mounted in the four sliding guide grooves 501a, the sliding guide grooves 501a are arranged in a T-shaped groove structure, the telescopic sliding blocks 502 are also in a T-shaped structure and are matched with the sliding guide grooves 501a, moreover, the width of the widest part of the sliding guide grooves 501a is greater than the width of the widest part of the telescopic sliding blocks 502, that is, two sides of the widest part of the telescopic sliding blocks 502 keep gaps with two sides of the widest part of the sliding guide grooves 501a, so that the resistance of the telescopic sliding blocks 502 freely sliding in the sliding guide grooves 501a is small, the four sliding guide grooves 501a are circumferentially distributed around the geometric center of the main wheel, each sliding guide groove 501a is internally provided with a telescopic spring 503, the inner side ends of the telescopic sliding blocks 502 are positioned in the sliding guide grooves 501a and are elastically connected with the inner parts of the sliding guide grooves 501a through the telescopic springs 503, the outer side ends of the telescopic sliding blocks 502 are exposed out of the sliding guide grooves 501a, the outer side ends of the four telescopic sliding blocks 502 form a virtual circle with the maximum outer diameter larger than the outer diameter of the stepping wheel 3 when in use, and the frame 1 is provided with a linkage type deformation driving mechanism 6 for driving all the telescopic sliding blocks 502 to synchronously extend and retract.
The trolley is characterized in that the walking wheel 3 is used for advancing during normal running, when the trolley needs to climb the stairs, all the telescopic sliding blocks 502 of the two radial deformation wheels 5 are driven to extend by the deformation driving mechanism 6, so that the outer side ends of the four telescopic sliding blocks 502 form a virtual circle with the maximum outer diameter larger than the outer diameter of the walking wheel 3 during use, the outer side ends of the telescopic sliding blocks 502 support the step surface of the stairs in turn, and the trolley can climb the stairs conveniently.
As shown in fig. 8, the outer end of the telescopic slider 502 has a semi-circular segment head 502a, and the arc surface of the semi-circular segment head 502a is arched outwards and is provided as a sawtooth surface to increase friction force for climbing.
As shown in fig. 2, the roller set further comprises a pair of universal wheels 7, and the two universal wheels 7 are distributed diagonally along the other diagonal of the bottom of the frame 1 and are staggered with the two stepping wheels 3. Under the normal condition, universal wheel 7 has the take a step the type apart from ground and places apart from the ground, can not rotate, and when the dolly appeared inclining, universal wheel 7 can play the supporting role, and likewise, universal wheel 7 also was placed for taking a step the type, and the place opposite with taking a step wheel 3, mutual complementation keeps intelligence with people's dolly equilibrium and stability.
As shown in fig. 13, the convenient cart in this embodiment is electrically driven, no additional pushing unit is needed, only two stepping wheels 3 are driven to move, each stepping wheel 3 is provided with an independent driving unit, two storage battery accommodating grooves 1a for accommodating storage batteries 11 are arranged on the frame 1, an independent driving unit configured for each step wheel 3 is a hub motor 10 (the hub motor 10 is a main body of the step wheel 3 to save the installation space), the hub motor 10 can be controlled by a remote controller or a vehicle-mounted controller, the two storage batteries 11 respectively supply power to the two hub motors 10, when the step wheel 3 rotates, the radial deformation wheel 5 which is coaxial with the step wheel also synchronously rotates, so that the convenient trolley can automatically walk, when climbing stairs, the step wheel 3 is not in contact with the stairs, and plays a role in driving the radial deformation wheel 5 to walk. In order to keep balance, the positions of the two storage battery accommodating grooves 1a correspond to the positions of the two universal wheels 7 respectively, and meanwhile, the storage battery 11 is heavy and has a low gravity center, so that the whole trolley is stable. When in use, the two in-wheel motors 10 respectively drive the two stepping wheels 3, and when the vehicle turns, the two stepping wheels 3 can realize differential motion so as to turn.
As shown in fig. 9, the basket 2 has a loading trough 201 with an upward opening and a V-shaped cross-sectional structure, the bottom of the loading trough 201 has a strip-shaped structure, and the bottom of the loading trough 201 coincides with a diagonal distribution line of the two swing wheels 3 when viewed from a top projection view. When the article is thrown into the carrying groove 201, the article will automatically slide down to the bottom of the carrying groove 201, and the gravity center of the article can be concentrated on the diagonal distribution connecting line position of the two stepping wheels 3, so that the two stepping wheels 3 can be used for bearing.
As shown in fig. 3-7, the deformation driving mechanism 6 includes a pair of movable abutting frames 610 corresponding to the two radial deformation wheels 5, each movable abutting frame 610 is configured with a return spring 611 coaxial with the stepping axle 4, each movable abutting frame 610 is movably sleeved on the stepping axle 4 and moves along the axial direction of the stepping axle 4, one side of the movable abutting frame 610 has four side protrusions 610a distributed in a cross shape, each side protrusion 610a faces a sliding guide groove 501a and can extend into the sliding guide groove 501a to abut against the inner end of the telescopic slider 502, the inner end of the telescopic slider 502 is in an inclined surface structure, the side protrusions 610a have inclined abutting surfaces 610b contacting with the inner end inclined surfaces of the telescopic slider 502, the inner end inclined surfaces of the telescopic slider 502 and the abutting surfaces 610b can also be in rolling contact, specifically, a roller is disposed on the inner end inclined surfaces of the telescopic slider 502 to contact with the abutting surfaces 610b in a rolling manner, the other side of the movable leaning frame 610 is elastically connected with the frame 1 through a return spring 611.
Moreover, as shown in fig. 7, in order to further ensure the service life of the telescopic slider 502, the inner side end of the minimum width portion of the telescopic slider 502 is movably contacted with the abutting surface 610b, and two side edges of the inner side end of the minimum width portion of the telescopic slider 502 are also in an inward inclined structure, when the telescopic slider 502 extends to the position of the use state, two side edges of the inner side end of the minimum width portion of the telescopic slider 502 are just not contacted with two side edges of the minimum width portion of the sliding guide groove 501a, and two side edges of the widest portion of the telescopic slider 502 are in sliding contact with two side edges of the widest portion of the sliding guide groove 501a, so that the minimum width portion of the telescopic slider 502 is not deformed due to extrusion and abrasion, and the widest portion of the sliding guide groove 501a is not deformed; thereby prolonging the service life of the main wheel body 501 and the telescopic sliding block 502 and facilitating the guiding of the telescopic sliding block 502 to be installed in the sliding guide groove 501 a.
The deformation driving mechanism 6 further comprises a linear driving assembly and a linkage rod assembly, the linkage rod assembly comprises a driven member 605, a linkage rod 607 and a driven rod 609, the middle part of the linkage rod 607 is rotatably connected to the frame 1 and forms a rotating fulcrum 608, one end of the driven member 605 and one end of the driven rod 609 are respectively rotatably connected to two ends of the linkage rod 607 and form a horizontally movable linkage mechanism, the other end of the driven member 605 and the other end of the driven rod 609 movably penetrate through the frame 1 and respectively abut against two movable abutting frames 610, the linear driving assembly is installed on the frame 1 and is close to one of the radial deformation wheels 5, and the linear driving assembly is used for driving the driven member 605 to perform linear motion so as to push the adjacent movable abutting frames 610.
The linear driving component is close to one shaft end of the driving cam 603, the linear driving component comprises a rocking handle 601, a torsion spring 602 and the driving cam 603, the driving cam 603 is integrally a round wheel, the axis of the driving cam 603 is horizontally arranged, the driving cam 603 is rotatably mounted on the frame 1 and rotates along the axis of the driving cam 603, the rocking handle 601 is linked with the driving cam 603, the torsion spring 602 is mounted on the frame 1 and can push the rocking handle 601 obliquely upwards, specifically, the torsion spring 602 is fixedly sleeved on a mounting reference shaft of the frame 1, one extending end of the torsion spring 602 abuts against the frame 1, the other extending end of the torsion spring 602 abuts against the lower side of the rocking handle 601 so as to push the rocking handle 601 obliquely upwards, a handle locking component for locking two locking positions of the rocking handle 601 is mounted at a position close to one shaft end of the driving cam 603, and the two locking positions of the rocking handle 601 respectively correspond to two extending and retracting states of the telescopic slider 502; the driving cam 603 has a spirally extending curved guide groove 603a on the outer peripheral wall thereof, and the follower 605 has a branch rod extending into the curved guide groove 603a and rotatably connected with a roller 604 in rolling engagement with the curved guide groove 603a, wherein the spiral central axis of the curved guide groove 603a coincides with the axis of the driving cam 603.
The handle locking assembly is provided with an upper locking hook 8 and a lower locking hook 9, the upper locking hook 8 is positioned right above the lower locking hook 9, the rocking handle 601 abuts against the lower side of the lower locking hook 9 and is locked when the telescopic slider 502 is in an extending state, the rocking handle 601 abuts against the lower side of the upper locking hook 8 and is locked when the telescopic slider 502 is in a retracting state, and the rocking handle 601 can be axially finely adjusted along the driving cam 603.
When the vehicle runs normally, the two stepping wheels 3 roll on the ground, the telescopic sliding block 502 is in a contraction state at the moment, and the two stepping wheels 3 are arranged in tandem to be in a stepping state when a person walks, so that the friction force between the two stepping wheels and the ground can be reduced, and the running speed is accelerated.
During normal driving, the telescopic slider 502 is in a contracted state, the telescopic spring 503 is in an initial state, the telescopic slider 502 does not contact with the ground, at this time, the rocking handle 601 butts against the lower side of the upper locking hook 8 under the elastic force of the torsion spring 602, and the movable leaning frame 610 and the return spring 611 are both in the initial state.
When climbing stairs, all the telescopic sliders 502 need to extend out simultaneously, the rocking handle 601 needs to be driven to perform outward fine adjustment along the installation shaft of the driving cam 603, so that the rocking handle 601 is separated from the upper locking hook 8, the rocking handle 601 is pulled downwards, the driving cam 603 rotates in the process of pulling the rocking handle 601 downwards, the driven member 605 is driven to perform horizontal motion by utilizing the movable fit of the roller 604 and the curved guide groove 603a, the movable abutting frame 610 is horizontally pushed to move towards the telescopic sliders 502 along the axis of the stepping wheel shaft 4, the resilience force of the return spring 611 is overcome in the moving process of the movable abutting frame 610, so that the four side protrusions 610a simultaneously extend into the four sliding guide grooves 501a and push all the telescopic sliders 502 to slide and extend out, the telescopic sliders 502 overcome the resilience force of the telescopic spring 503 when extending, when the rocking handle 601 rotates downwards to the position of the lower locking hook 9, the rocking handle 601 needs to be driven to perform inward fine adjustment along the installation shaft of the driving cam 603, the rocking handle 601 is abutted against the lower side of the lower locking hook 9 and abutted against the lower side of the lower locking hook 9 under the action of the elastic force of the torsion spring 602 to lock the rocking handle 601, and after the rocking handle 601 is locked, the driving cam 603, the follower 605 and the movable abutting frame 610 are all in a position locking state, so that all the telescopic sliders 502 are in a locked state, and the telescopic sliders 502 support step surfaces when climbing stairs.
While the driven part 605 moves, the linkage rod 607 rotates around the rotating fulcrum 608 thereof, so as to drive the driven rod 609 to move, and the driven rod 609 can drive the other movable abutting frame 610 to move in the moving process, so as to drive the other radial deformation wheel 5 to expand and deform (expand the radial dimension).
Thus, when the follower 605 is locked, both the linkage rod 607 and the driven rod 609 are locked, then all the telescopic sliders 502 of the other radial deformation wheel 5 are in the locked condition.
As shown in fig. 5-6, the end of the movable abutment 610 abutting against the follower 605 and the follower 609 is rotatably mounted with a ball 606 rolling on the surface of the movable abutment 610, and the ball 606 functions to reduce friction between the follower 605 and the follower 609 and the surface of the movable abutment 610.
The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and such changes or improvements should fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a plane is gone and is climbed stair and people carry thing facility dolly, includes roller train and has frame (1) of carrying thing basket (2), its characterized in that: the whole frame (1) is approximately of a cuboid structure, the roller group comprises a pair of stepping wheels (3) which roll on the ground during normal running and are rotatably arranged at the bottom of the frame (1) through a horizontally extending stepping wheel shaft (4), the two stepping wheels (3) are distributed along one diagonal line at the bottom of the frame (1) at an angle, and each stepping wheel (3) is provided with an independent driving unit;
the roller group also comprises a pair of radial deformation wheels (5) capable of performing radial deformation, and each step wheel (3) is provided with one radial deformation wheel (5) and is arranged on the same step wheel shaft (4) in a penetrating way;
the radial deformation wheel (5) comprises a main wheel body (501) and four telescopic sliding blocks (502) distributed in a cross shape, the main wheel body (501) is coaxially and fixedly sleeved on the stepping wheel shaft (4), the main wheel body (501) is provided with four sliding guide grooves (501a) distributed in the cross shape, the four telescopic sliding blocks (502) are respectively installed in the four sliding guide grooves (501a) in a sliding mode, the four sliding guide grooves (501a) are uniformly distributed in the circumferential direction of the geometric center of the main wheel body (501), each sliding guide groove (501a) is internally provided with a telescopic spring (503), the inner side ends of the telescopic sliding blocks (502) are positioned in the sliding guide grooves (501a) and are elastically connected with the inner parts of the sliding guide grooves (501a) through the telescopic springs (503), the outer side ends of the telescopic sliding blocks (502) are exposed out of the sliding guide grooves (501a), and the outer side ends of the four telescopic sliding blocks (502) form a virtual circle with the maximum outer diameter larger than that of the stepping wheel (3), the frame (1) is provided with a linkage type deformation driving mechanism (6) for driving all the telescopic sliding blocks (502) to synchronously extend and retract.
2. The cart for plane running and climbing stairs and carrying people conveniently according to claim 1, wherein: the roller train also comprises a pair of universal wheels (7) keeping a gap with the ground during normal running, and the two universal wheels (7) are distributed at an angle along the other diagonal of the bottom of the frame (1) and staggered with the two walking wheels (3).
3. The cart for plane running and climbing stairs and carrying people conveniently according to claim 1, wherein: the carrying basket (2) is provided with a carrying groove (201) with an upward opening and a V-shaped cross section structure, the groove bottom of the carrying groove (201) is of a strip-shaped structure, and the groove bottom of the carrying groove (201) is coincided with a diagonal distribution connecting line of the two stepping wheels (3) when viewed from a top projection view.
4. The cart for plane running and climbing stairs and carrying people conveniently according to claim 1, wherein: the deformation driving mechanism (6) comprises a pair of movable leaning frames (610) which respectively correspond to the two radial deformation wheels (5), each movable leaning frame (610) is provided with a return spring (611) which is coaxial with the stepping wheel shaft (4), each movable leaning frame (610) is movably sleeved on the stepping wheel shaft (4) and moves along the axial direction of the stepping wheel shaft (4), one side of the movable leaning frame (610) is provided with four side convex blocks (610a) which are distributed in a cross shape, each side convex block (610a) is over against one sliding guide groove (501a) and can extend into the sliding guide groove (501a) to lean against the inner side end of the telescopic sliding block (502), the inner side end of the telescopic sliding block (502) is of an inclined surface structure, the side lug (610a) is provided with an inclined abutting surface (610b) which is in inclined contact with the inner side end inclined surface of the telescopic sliding block (502), the other side of the movable leaning frame (610) is elastically connected with the frame (1) through a return spring (611);
the deformation driving mechanism (6) also comprises a linear driving component and a linkage rod component, the linkage rod assembly comprises a driven part (605), a linkage rod (607) and a driven rod (609), the middle part of the linkage rod (607) is rotationally connected to the frame (1) and forms a rotating fulcrum (608), one end of the driven part (605) and one end of the driven rod (609) are respectively and rotatably connected with the two ends of the linkage rod (607) to form a horizontally movable connecting rod mechanism, the other end of the driven part (605) and the other end of the driven rod (609) movably penetrate through the frame (1) and respectively abut against the two movable abutting frames (610), the linear driving component is arranged on the frame (1) and close to one of the radial deformation wheels (5), the linear driving component is used for driving the driven piece (605) to perform linear motion so as to push the adjacent movable abutting frame (610).
5. The small cart for plane running and climbing stairs and carrying people according to claim 4, wherein: the linear driving assembly is close to one shaft end of the driving cam (603), the linear driving assembly comprises a rocking handle (601), a torsion spring (602), the driving cam (603) and a roller (604), the driving cam (603) is integrally a round wheel, the axis of the driving cam is horizontally arranged, the driving cam (603) is rotatably mounted on the frame (1) and rotates along the axis of the driving cam, the rocking handle (601) is in linkage with the driving cam (603), the torsion spring (602) is mounted on the frame (1) and can push the rocking handle (601) obliquely upwards, a handle locking assembly for locking two locking positions of the rocking handle (601) is mounted at a position close to one shaft end of the driving cam (603), and the two locking positions of the rocking handle (601) correspond to two states of extension and retraction of the telescopic sliding block (502) respectively; the peripheral wall of the driving cam (603) is provided with a curve guide groove (603a) which extends spirally, the driven piece (605) is provided with a branch rod which extends into the curve guide groove (603a) and is rotatably connected with a roller (604) which is matched with the curve guide groove (603a) in a rolling way, wherein the spiral central axis of the curve guide groove (603a) is coincident with the axis of the driving cam (603).
6. The small cart for plane running and climbing stairs and carrying people according to claim 4, wherein: and one ends of the driven piece (605) and the driven rod (609) abutting against the movable abutting frame (610) are respectively and rotatably provided with a ball (606) rolling on the surface of the movable abutting frame (610).
7. The small cart for plane running and climbing stairs and carrying people according to claim 5, wherein: the handle locking assembly is provided with an upper locking hook (8) and a lower locking hook (9), the upper locking hook (8) is located right above the lower locking hook (9), the rocking handle (601) abuts against the lower side of the lower locking hook (9) and is locked when the telescopic sliding block (502) is in a stretching state, the rocking handle (601) abuts against the lower side of the upper locking hook (8) and is locked when the telescopic sliding block (502) is in a retracting state, and the rocking handle (601) can be axially finely adjusted along the driving cam (603).
8. The cart for plane running and climbing stairs and carrying people conveniently according to claim 1, wherein: the outer side end of the telescopic sliding block (502) is provided with a semicircular fan-shaped head (502a), and the cambered surface of the semicircular fan-shaped head (502a) is arched outwards and is arranged as a sawtooth surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921378894.2U CN210761048U (en) | 2019-08-23 | 2019-08-23 | Convenient trolley capable of traveling on plane, climbing stairs and carrying goods by people |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921378894.2U CN210761048U (en) | 2019-08-23 | 2019-08-23 | Convenient trolley capable of traveling on plane, climbing stairs and carrying goods by people |
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| CN210761048U true CN210761048U (en) | 2020-06-16 |
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| CN201921378894.2U Withdrawn - After Issue CN210761048U (en) | 2019-08-23 | 2019-08-23 | Convenient trolley capable of traveling on plane, climbing stairs and carrying goods by people |
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| CN (1) | CN210761048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110550125A (en) * | 2019-08-23 | 2019-12-10 | 上海海洋大学 | Convenient trolley capable of traveling on plane, climbing stairs and carrying goods by people |
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2019
- 2019-08-23 CN CN201921378894.2U patent/CN210761048U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110550125A (en) * | 2019-08-23 | 2019-12-10 | 上海海洋大学 | Convenient trolley capable of traveling on plane, climbing stairs and carrying goods by people |
| CN110550125B (en) * | 2019-08-23 | 2024-05-28 | 上海海洋大学 | Convenient trolley capable of traveling on plane and climbing stairs and carrying things along with people |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200616 Effective date of abandoning: 20240528 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200616 Effective date of abandoning: 20240528 |