CN111494921A

CN111494921A - Wheel set capable of automatically changing distance to walk and scooter

Info

Publication number: CN111494921A
Application number: CN202010347756.9A
Authority: CN
Inventors: 邓志辉
Original assignee: Zhongshan Fantasy Model Design Co Ltd
Current assignee: Zhongshan Fantasy Model Design Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-08-07

Abstract

The invention discloses a wheel set and a scooter capable of automatically changing distance to walk, wherein guide rods are connected with two ends of a suspension beam outwards and upwards or downwards in an inclined manner, a wheel assembly is connected with each guide rod, the wheel assembly comprises a connecting piece and a wheel, the connecting piece is slidably connected with the guide rods, the wheel is connected with the connecting piece and can horizontally swing relative to the connecting piece and rotate around the axis of the connecting piece, the connecting piece is also connected with a resetting piece so that the two wheel assemblies slide along the corresponding guide rods under the action of external pressure to increase or reduce the distance between the two wheel assemblies, the resetting piece pulls or pushes the wheel assembly when the external pressure of the suspension beam is cancelled or reduced, the distance between the two wheel assemblies is reduced or increased, the steering function can be realized under the condition that the gravity center is not increased, the direction change can be convenient, the wheel can be effectively prevented from randomly deflecting in the walking, and the distance between the two wheels can be correspondingly and automatically adjusted along with the change of the load, so that the running is stable and safe.

Description

Wheel set capable of automatically changing distance to walk and scooter

[ technical field ] A method for producing a semiconductor device

The invention relates to a wheel set capable of automatically changing distance to walk and a scooter applying the wheel set capable of automatically changing distance to walk.

[ background of the invention ]

In the prior art, a common wheel set is formed by connecting wheels with a shaft through a rolling bearing, steering is realized by controlling the swinging of the shaft, the distance between the two wheels is kept unchanged, and the structure is difficult to meet a load device with special requirements during walking. For the steering requirement, generally adopt the universal wheel, conventional universal wheel adopts rotating-structure and rolling structure to superpose and forms, and rotating-structure sets up on rolling structure, adopts this design structure, has a more obvious defect just to make the load structure's of connecting this wheel subassembly focus higher, so the phenomenon of toppling appears easily in the safety problem, is unfavorable for safety, and also is not convenient for control its direction that keeps stable in the rolling in-process and goes.

In addition, for the conventional scooter, the left and right wheels are fixed on the two bridge ends of the pivot shaft, and the distance is stable, for example, the patent name is CN209714246U, which is a scooter stand disclosed by a scooter stand with a data acquisition device. The scooter with the structure is driven to slide while stepping on the ground by manpower, and the scooter is pushed to move forwards by the forward reaction of the ground, so that the scooter is not labor-saving to slide and has short sliding distance.

In view of the defects of the prior art, the invention is developed and developed correspondingly, and a new technical scheme is provided.

[ summary of the invention ]

The invention aims to solve the technical problem of providing a wheel set capable of automatically traveling at a variable distance, which has scientific and reasonable design and simple structure, can realize that wheels have a deflection function under the condition of not increasing the gravity center, can conveniently change the direction and change the direction, can effectively avoid the wheels from deflecting randomly in the traveling process, ensures the traveling stability of the wheels, can correspondingly and automatically adjust the distance between the two wheels along with the change of load, and can ensure the traveling stability and safety.

The invention also provides a scooter, which applies the wheel set capable of automatically walking with variable distance, a user can correspondingly automatically adjust the distance between the left wheel and the right wheel by controlling the gravity center change of the human body, and the scooter can still run for a larger distance along a stable direction after the distance between the two wheels is automatically increased or reduced along with the deflection of the left wheel and the right wheel, thereby having the function of saving labor and effectively improving the driving pleasure of the user.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a wheel set capable of automatically walking with variable pitch, which comprises a suspension beam 1, wherein two ends of the suspension beam 1 are outwards and upwards or downwards slantwise connected with guide rods 2, each guide rod 2 is slidably connected with a wheel assembly 3, the wheel assembly 3 comprises a connecting member 31 and a wheel 32, the connecting member 31 is slidably connected to the guide bar 2, the wheel 32 is connected to the connecting member 31 and can horizontally swing and rotate around the axis of the connecting member 31 relative to the connecting member 31, the connecting member 31 is further connected with a restoring member 10 for elastically acting on the wheel assemblies 3 so that the suspension beam 1 slides along the respective guide rods 2 under the external pressure to increase or decrease the interval between the wheel assemblies 3, and the restoring member 10 pulls or presses the wheel assemblies 3 when the suspension beam 1 is removed or reduced in external pressure, so that the interval between the two wheel assemblies 3 becomes smaller or larger.

The wheel assembly 3 further comprises a swinging control member 33 and a rolling bearing 34, an outer ring of the rolling bearing 34 is relatively and fixedly connected to an inner hole of the wheel 32, the two swinging control members 33 are oppositely arranged on two opposite sides of an inner ring of the rolling bearing 34, an installation space 35 is formed between the two swinging control members 33, and the connecting member 31 is connected with the two swinging control members 33 through the installation space 35.

In the wheel set capable of automatically moving at variable pitches, the central axis of the swing control member 33 and the central axis of the rolling bearing 34 are arranged in a spatial intersection manner, and the central axis of the swing control member 33 is arranged in front of the central axis of the rolling bearing 34 along the moving direction of the wheel 32.

The wheel set capable of automatically walking with variable pitch is characterized in that: a pad element 36 is arranged between the inner ring of the rolling bearing 34 and the swinging control element 33, the pad element 36 is directly or indirectly fixedly arranged relative to the inner ring of the rolling bearing 34, and a pad element guide groove 361 used for being matched with the swinging control element 33 is arranged on one surface, in contact with the swinging control element 33, of the pad element 36; a connecting piece guide groove 311 used for being matched with the swinging control piece 33 is arranged on one surface of the connecting piece 31, which is contacted with the swinging control piece 33

In the wheel set capable of automatically varying the pitch, the restoring member 10 is a tension spring and is disposed between the connecting member 31 and the suspension beam 1.

According to the wheel set capable of automatically walking with variable pitch, the guide rod 2 is connected to the outer end of the suspension beam 1 in an upward inclined manner, and the reset piece 10 is a tension spring and is arranged between the connecting piece 31 and the suspension beam 1; or the reset piece 10 is a compression spring and is arranged between the outer end of the guide rod 2 and the connecting piece 31.

According to the wheel set capable of automatically walking with variable pitch, the guide rod 2 is connected to the outer end of the suspension beam 1 in a downward inclined manner, and the reset piece 10 is a tension spring and is arranged between the connecting piece 31 and the outer end of the guide rod 2; or the reset piece 10 is a compression spring and is arranged between the outer end of the suspension beam 1 and the connecting piece 31.

In the wheel set capable of automatically varying the distance to walk, the suspension beam 1 is formed by a rod.

The wheel set capable of automatically walking with variable pitch as described above, the suspension beam 1 is composed of two half rod pieces, the two half rod pieces of the suspension beam 1 are far away from the end part of the wheel set 3 and are provided with suspension beam hinge lugs 11 and suspension beam adjusting free ends 12, the same suspension beam hinge lugs 11 and suspension beam adjusting free ends 12 of the half rod pieces of the suspension beam 1 are L-shaped structures, two adjustment seats 13 are hinged between the suspension beam hinge lugs 11, and the adjustment seats 13 are provided with adjustment mechanisms 14 for adjusting the inclination angles of the guide rods 2.

The wheel set capable of automatically varying the distance to walk as described above, the adjusting mechanism 14 is located between the two suspension beam adjusting free ends 12, the adjusting mechanism 14 includes an adjusting part 141, an adjusting elastic part 142 and an adjusting pressing block 143, the adjusting elastic part 142 is disposed between the adjusting seat 13 and the two suspension beam adjusting free ends 12 to enable the guide rod to tilt upwards, or the adjusting elastic part 142 is disposed between the adjusting pressing block 143 and the two suspension beam adjusting free ends 12 to enable the guide rod to tilt upwards, the adjusting part 141 is disposed on the adjusting seat 13, and the adjusting pressing block 143 is connected with the adjusting part 141 through a screw thread to limit and block the two suspension beam adjusting free ends 12; or the adjusting part 141 is connected with the adjusting seat 13 through a thread, and the adjusting pressing block 143 is relatively fixedly connected to the outer end of the adjusting part 141 to limit and clamp the adjusting free ends 12 of the two suspension beams.

The invention also provides a scooter, which comprises a support plate 5, wherein the front and back positions of the bottom of the support plate 5 are relatively and fixedly connected with a fixed seat 6, and the scooter is characterized in that: the device also comprises wheel sets capable of automatically changing the distance to walk, and each fixed seat 6 is directly or indirectly connected with the corresponding suspension beam 1.

As above a scooter, hang roof beam 1 and constitute by two halves root member, each the fixing base 6 is indirectly connected with the suspension beam 1 that corresponds, two halves root member of suspension beam 1 is kept away from wheel subassembly 3 tip and is equipped with suspension beam hinge ear 11 and suspension beam regulation free end 12, and is same suspension beam hinge ear 11 and suspension beam regulation free end 12 of half root member of suspension beam 1 are L type structure, two it has regulation seat 13 to articulate between suspension beam hinge ear 11, be equipped with on the regulation seat 13 and be used for adjusting 2 inclination's of guide arm adjustment mechanism 14, each fixing base 6 is connected with suspension beam 1 through adjusting seat 13 is indirectly, fixing base 6 both ends are equipped with fixing base deflection guide hole 61 and fixing base deflection axle 62 respectively, the central axis of fixing base deflection guide hole 61 and fixing base deflection axle 62 intersects and the nodical position is below fixing base 6 upper surface, it is used for the regulation seat axle 131 that rotationally cooperate with fixing base deflection guide hole 61 to be connected to adjust on the seat 13, it is equipped with the regulation seat deflection axle 132 that is used for cooperating with fixing base deflection axle 62, the screw thread deflection axle runs through and adjusts deflection axle 132.

In the scooter, the deflection shaft sleeve 133 is disposed on the deflection shaft 62 of the fixing base and located at two ends of the deflection guiding hole 132 of the adjusting base.

The scooter as described above, each said fixing base 6 is directly connected with the suspension beam 1, two ends of said fixing base 6 are respectively provided with a fixing base deflection guide hole 61 and a fixing base deflection shaft 62, the central axes of said fixing base deflection guide hole 61 and said fixing base deflection shaft 62 are crossed and the crossing point is located under the upper surface of the fixing base 6, said suspension beam 1 is correspondingly and obliquely provided with a suspension beam deflection shaft for being rotatably connected with the fixing base deflection guide hole 61 in a matching manner, said suspension beam 1 is correspondingly provided with a suspension beam deflection guide hole for being connected with the fixing base deflection shaft 62 in a matching manner, said fixing base deflection shaft 62 runs through the suspension beam deflection guide hole and is screw-connected with a deflection adjusting nut 63.

Compared with the prior art, the invention has the following advantages:

1. the left wheel assembly and the right wheel assembly of the invention can be respectively connected on each corresponding guide rod in a sliding way, when the wheel assembly in walking is acted by external downward pressure, the left wheel assembly and the right wheel assembly slide on the corresponding guide rods, when the external downward pressure is reduced or disappears, the left wheel assembly and the right wheel assembly do reset motion on the guide rods under the action of the reset piece so as to adjust the distance between the two wheels, so that the left wheel assembly and the right wheel assembly in walking can move transversely in the process of moving forwards, the stable forward walking direction can be continuously kept, and the wheels can walk for a longer distance, thereby achieving the labor-saving effect.

2. The wheel assembly is correspondingly connected with the guide rod and the connecting piece by adopting the rolling bearing, the swinging control piece, the guide rod and the connecting piece, so that the wheel can swing, rotate and slide left and right relative to the guide rod and the connecting piece, the swinging control piece is arranged in the rolling bearing, the composite movement of deflection and rolling of the wheel is realized while the center is not increased, and the wheel assembly has the characteristics of safety and reliability; in addition, along the rolling direction, the swinging control piece is eccentrically arranged forwards relative to the rolling bearing, and in the moving process, even if the left wheel and the right wheel are expanded outwards or contracted and closed, the two wheels always move forwards in a stable direction.

3. The invention can adjust the inclination angle of the left and right guide rods through the adjusting mechanism, thereby adjusting the external downward pressure required by the left and right wheel assemblies to slide on the corresponding guide rods, so as to adjust according to the weights and requirements of different users, if the weight is large, the inclination angle of the guide rods can be adjusted to be small, and if the weight is small, the inclination angle of the guide rods can be adjusted to be large, so that a more appropriate acceleration effect and exercise experience can be obtained, and the invention has flexibility.

4. The wheel set capable of automatically walking at variable distances has a simple structure, can drive the wheels to roll forwards by utilizing the change of the down force and the gravity center, and has the characteristics of labor saving in movement and long sliding distance.

5. The scooter with the wheel set capable of automatically walking in a variable pitch has the functions and the characteristics, effectively improves the driving pleasure of a user, and has the characteristics of safety, reliability and labor saving.

[ description of the drawings ]

The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:

FIG. 1 is a schematic structural view of a first embodiment of an automatically variable-pitch-traveling wheel set;

FIG. 2 is a schematic structural view of a second embodiment of an automatically variable-pitch wheel set;

FIG. 3 is a schematic view of a second embodiment of a wheelset capable of automatically varying its pitch and a fixed base;

FIG. 4 is a second schematic view of a second embodiment of a wheel set capable of automatically varying the distance to travel, connected to a fixed base;

FIG. 5 is an exploded view of a second embodiment of an automatically variable pitch drive wheel assembly attached to a fixed base;

FIG. 6 is a schematic view of the connection between the wheel assembly and the guide rod of the wheel set capable of automatically moving at a variable distance;

FIG. 7 is a schematic diagram of a wheel assembly of an automatically variable pitch wheel set;

FIG. 8 is an exploded view of a wheel assembly of an automatically variable pitch drive wheel set;

FIG. 9 is a schematic view of a pad member of an automatically variable-pitch wheel set;

FIG. 10 is a second schematic view of a pad of a wheelset for automatic pitch-controlled walking;

FIG. 11 is a schematic illustration of a wheel assembly rolling in an automatically variable pitch wheel set;

FIG. 12 is a front view of a scooter;

fig. 13 is a left side view of a scooter.

[ detailed description ] embodiments

The invention is further described below with reference to the accompanying drawings:

as shown in fig. 1 and 2, the wheel set capable of automatically moving at a variable distance according to the present invention includes a suspension beam 1, two suspension beams may be formed by two or one suspension beam, guide rods 2 are connected to two ends of the suspension beam 1 in an outward and upward or downward inclined manner, a wheel assembly 3 is slidably connected to each guide rod 2, the guide rods 2 and a connecting member 31 are slidably connected to form a linear bearing, the wheel assembly 3 includes a connecting member 31 and a wheel 32, the connecting member 31 is slidably connected to the guide rods 2, the wheel 32 is connected to the connecting member 31 and can horizontally swing and rotate around an axis of the connecting member 31 relative to the connecting member 31, and the connecting member 31 is further connected to a reset member 10 for elastically acting on the wheel assembly 3.

When the guide rods 2 are connected with the end of the suspension beam 1 in an upward inclined manner, the suspension beam 1 slides back along the corresponding guide rods 2 under the action of external pressure to increase the distance between the two wheel assemblies 3, and the reset piece 10 pulls or presses the wheel assemblies 3 when the external pressure of the suspension beam 1 is removed or reduced, so that the distance between the two wheel assemblies 3 is reduced.

When the guide rod 2 is connected with the end of the suspension beam 1 in a downward inclined manner, the suspension beam 1 slides along the corresponding guide rod 2 in opposite directions under the action of external pressure to reduce the distance between the two wheel assemblies 3, and the reset piece 10 pulls or presses the wheel assemblies 3 when the external pressure of the suspension beam 1 is removed or reduced, so that the distance between the two wheel assemblies 3 is increased.

When the wheel assembly is pressed downwards from outside, the guide rods are inclined, and the left and right wheel assemblies slide on the corresponding guide rods, so that when the external pressing force is reduced or eliminated, the left and right wheel assemblies reset on the guide rods under the action of the reset piece to adjust the distance between the two wheels. And because the wheels can horizontally swing relative to the connecting piece, the wheels correspondingly deflect in the pitch changing process of the two wheels, so that the two wheel assemblies can stably and continuously move in the forward direction.

The left guide rod and the right guide rod are symmetrically arranged, the projections of the left guide rod and the right guide rod on the horizontal plane are positioned on the same straight line, the outer ends of the left guide rod and the right guide rod are outward and upward or downward inclined, so that the downward pressure is reduced or increased along with the external action under the action of the external downward pressure, and the left wheel component and the right wheel component are relatively outward opened or contracted and closed to move repeatedly under the action of the reset piece.

As shown in fig. 6 to 7, the wheel assembly 3 further includes a swinging control member 33 and a rolling bearing 34, an outer ring of the rolling bearing 34 is relatively fixedly connected to an inner hole of the wheel 32, the two swinging control members 33 are oppositely disposed on two opposite sides of an inner ring of the rolling bearing 34, an installation space 35 is formed between the two swinging control members 33, and the connecting member 31 is connected to the two swinging control members 33 through the installation space 35. By adopting the design structure, the wheel assembly has the functions of rotation and swinging, and has the lowest gravity center position, thereby ensuring stable, safe and reliable motion.

The central axis of the swinging control member 33 and the central axis of the rolling bearing 34 are arranged in a spatial intersection manner, and the central axis of the swinging control member 33 is arranged on the front side of the central axis of the rolling bearing 34 along the walking direction of the wheel 32. As shown in fig. 11, the central axis of the swing control member is ab, the central axis of the rolling wheel is cd, which is taken as a reference, it can be seen that the bearing force applied to the swing control member is transmitted to the swing control member by the connecting member, the bearing force is collinear with ab and coincides with ab, because the bearing force always acts downward on the front side of the inner ring of the rolling bearing, a torque consistent with the rolling direction of the wheel is generated and acts on the connecting member, and the contact force bearing point of the wheel and the supporting ground is the center of the bottom surface of the wheel and is located on cd, the wheel can always keep a stable direction and roll forward under the action of the bearing force, and the wheel can automatically return to the positive direction after yawing immediately, thereby avoiding the influence of walking due to any yawing, and under the same thrust driving, the wheel can roll for a longer distance, and achieve the labor saving effect.

The swinging control piece can be indirectly or directly connected with the inner ring of the rolling bearing 2 according to the requirement, and the swinging control piece adopts a plane bearing, a ball, a pivot or other rotating connecting components.

When the planar bearing is adopted, a surface for rolling contact with the swinging control piece can be formed in an inner ring of the rolling bearing by filling through a wedge block or by adopting a cushion piece; when the ball is adopted, the ball can be rotatably or relatively fixedly arranged on the inner ring of the rolling bearing, and correspondingly, the connecting piece is provided with a concave spherical surface matched with the ball; when a pivot is used, the connecting piece can swing relative to the rolling bearing through the pivot.

As shown in fig. 8, a pad 36 is disposed between the inner ring of the rolling bearing 34 and the swinging control member 33, the pad 36 is directly or indirectly fixed to the inner ring of the rolling bearing 34, that is, fixed by welding or dispensing, and in order to ensure smooth, stable and reliable wheel deflection, a pad guide groove 361 for cooperating with the swinging control member 33 is disposed on a surface of the pad 36 contacting the swinging control member 33; the connecting piece 31 is provided with a connecting piece guide groove 311 which is matched with the swinging control piece 33 on the surface contacting with the swinging control piece 33.

When the plane bearing adopts the swinging control part 33, in order to make the swinging control part better connected to the pad or the connecting part, a pad boss 362 for being connected with the inner hole of the swinging control part 33 in a matching manner is arranged on the pad 36 and in the pad guide groove 361, or a connecting part boss for being connected with the inner hole of the swinging control part 33 in a matching manner is arranged on the connecting part 31 and in the connecting part guide groove 311.

As a mode of resetting the wheels after changing the distance, a tension spring or a compression spring can be adopted.

When the guide rod 2 is obliquely connected to the outer end of the suspension beam 1, the reset piece 10 is a tension spring and is arranged between the connecting piece 31 and the suspension beam 1; or the reset piece 10 is a compression spring and is arranged between the outer end of the guide rod 2 and the connecting piece 31.

When the guide rod 2 is connected to the outer end of the suspension beam 1 in a downward inclined manner, the reset piece 10 is a tension spring and is arranged between the connecting piece 31 and the outer end of the guide rod 2; or the reset piece 10 is a compression spring and is arranged between the outer end of the suspension beam 1 and the connecting piece 31.

As shown in fig. 1, the suspension beam 1 is formed of one rod member.

As shown in fig. 2-5, the suspension beam 1 is composed of two half rod members, the two half rod members of the suspension beam 1 are provided with suspension beam hinge lugs 11 and suspension beam adjustment free ends 12 far away from the end portions of the wheel assemblies 3, the suspension beam hinge lugs 11 and the suspension beam adjustment free ends 12 of the same half rod member of the suspension beam 1 are in L type structures, an adjustment seat 13 is hinged between the two suspension beam hinge lugs 11, and an adjustment mechanism 14 for adjusting the inclination angle of the guide rod 2 is arranged on the adjustment seat 13.

As an embodiment of the adjusting mechanism 14, the adjusting mechanism 14 is located between the two suspension beam adjusting free ends 12, the adjusting mechanism 14 includes an adjusting member 141, an adjusting elastic member 142, and an adjusting press block 143, the adjusting elastic member 142 is located between the adjusting seat 13 and the two suspension beam adjusting free ends 12, or the adjusting elastic member 142 is located between the adjusting press block 143 and the two suspension beam adjusting free ends 12, the adjusting member 141 is disposed on the adjusting seat 13, the adjusting press block 143 is connected with the adjusting member 141 through a screw thread to limit and clamp the two suspension beam adjusting free ends 12, the adjusting press block 143 may be a nut, and the adjusting member 141 is a threaded rod.

As another embodiment of the adjusting mechanism 14, the adjusting member 141 is connected with the adjusting seat 13 through a screw thread, the adjusting pressing block 143 is relatively fixedly connected to the outer end of the adjusting member 141 to limit and clamp the adjusting free ends 12 of the two suspension beams, and the adjusting member 141 may be a bolt, and correspondingly the adjusting pressing block 143 is a nut.

The scooter comprises a support plate 5, wherein the front and back positions of the bottom of the support plate 5 are relatively and fixedly connected with fixing seats 6, the wheel set capable of automatically walking in a variable pitch mode is applied, and each fixing seat 6 is directly or indirectly connected with a corresponding suspension beam 1.

As shown in fig. 12-13, as a specific embodiment of a scooter, the suspension beam 1 is composed of two half rod members, the two half rod members of the suspension beam 1 are provided with a suspension beam hinge lug 11 and a suspension beam adjustment free end 12 away from the end of the wheel assembly 3, the suspension beam hinge lug 11 and the suspension beam adjustment free end 12 of the same half rod member of the suspension beam 1 are in L type structure, each of the fixing bases 6 is indirectly connected with the corresponding suspension beam 1, an adjustment base 13 is hinged between the two suspension beam hinge lugs 11, the adjustment base 13 is provided with an adjustment mechanism 14 for adjusting the inclination angle of the guide rod 2, each of the fixing bases 6 is indirectly connected with the suspension beam 1 through an adjustment base 13, the two ends of the fixing base 6 are respectively provided with a fixing base deflection guide hole 61 and a fixing base deflection shaft 62, the central axes of the fixing base deflection guide hole 61 and the fixing base deflection shaft 62 are on the same plane and intersect, the intersection point is located below the upper surface of the fixing base 6, the plane where the central axes of the fixing base deflection guide hole 61 and the fixing base deflection shaft 62 are located is substantially perpendicular to the horizontal ground, the adjustment base 13 is provided with a guide hole 131 for rotatably connecting with the fixing base deflection shaft 61, the adjustment base deflection shaft 131, the adjustment base 13 is provided with a chamfer angle adjustment base 132 for rotatably connecting the adjustment base deflection shaft 131, the adjustment base 132, the adjustment base 13 is provided with a chamfer angle 132 for rotatably connecting the adjustment base 13, the adjustment base 132, the adjustment base 13.

As another specific implementation manner of the scooter, each of the fixing bases 6 is directly connected to the suspension beam 1, two ends of each of the fixing bases 6 are respectively provided with a fixing base deflection guide hole 61 and a fixing base deflection shaft 62, the central axes of the fixing base deflection guide hole 61 and the fixing base deflection shaft 62 are intersected, and the intersection point is located below the upper surface of the fixing base 6, the suspension beam 1 is correspondingly obliquely provided with the suspension beam deflection shaft which is rotatably matched and connected with the fixing base deflection guide hole 61, the suspension beam 1 is correspondingly provided with the suspension beam deflection guide hole which is matched and connected with the fixing base deflection shaft 62, and the fixing base deflection shaft 62 penetrates through the suspension beam deflection guide hole and is in threaded connection with a deflection adjusting nut 63.

No matter which specific implementation mode the above-mentioned scooter is, it turns the diversion in order to control the whole car better, on the fixing base deflection axle 62 and be located the regulation seat and deflect the guide hole 132 both ends and be equipped with inclined to one side pivot cover 133, in order to increase the contact stress area connection reliable, regulation seat deflection guide hole 132 and outstanding roof beam deflection guide hole both ends all are equipped with the counter bore that is used for holding inclined to one side pivot cover 133, and be close to the deflection adjusting nut one side and be located the regulation seat deflection guide hole 132 or hang the inclined to one side pivot cover 133 on the guide hole lower extreme drill way of roof beam deflection and be hollow circular truncated cone, the big bottom of circular truncated cone hugs closely in regulation seat deflection guide hole. The user can make easily or difficult or moderately control the fixing base on the backup pad and adjust seat deflection axle 131 or hanging beam deflection axle and twist relatively according to self weight through adjusting the elasticity degree of deflecting adjusting nut 63, and then control the scooter and turn to.

For the structure with the outer end of the guide rod inclined upwards, when a user uses the scooter, the user firstly pedals backwards through feet to counteract the scooter to roll forwards to walk, when the downward pressure of the user acting on the scooter downwards increases in the running process, the left wheel and the right wheel slide outwards along the guide rod while rolling forwards, so that the distance between the left wheel and the right wheel is increased, when the downward pressure of the scooter is reduced, the left wheel and the right wheel slide inwards along the guide rod while rolling forwards under the action of the resetting piece, and the left wheel and the right wheel are repeatedly opened and contracted to move closer to each other to perform variable-pitch motion, so that the effect of continuous acceleration is achieved, the scooter slides more laborsavingly, and the sliding distance is farther; and the wheel assembly can not deflect randomly in the moving process to influence the driving direction.

For the structure with the outer end of the guide rod inclined downwards, when a user uses the scooter, the user pedals backwards through feet to counteract the scooter to roll forwards to walk, when the downward pressure of the user acting on the scooter downwards is increased in the running process, the left wheel and the right wheel slide inwards along the guide rod while rolling forwards, so that the distance between the left wheel and the right wheel is reduced, when the downward pressure of the user acting on the scooter is reduced, the left wheel and the right wheel slide outwards along the guide rod while rolling forwards under the action of the resetting piece, and the left wheel and the right wheel are repeatedly expanded and contracted to move closer to each other to perform variable-pitch motion, so that the effect of continuous acceleration is achieved, the scooter is more labor-saving to slide, and the sliding distance is longer; and the wheel assembly can not deflect randomly in the moving process to influence the driving direction.

The user can pedal the foot or lean forward or hypsokinesis after repeating and change the downforce of downwardly acting scooter, and then can make the interval of controlling the wheel suddenly big or suddenly little, when the downforce that receives makes the interval change of two wheels to the biggest or minimum, because the relative antifriction bearing eccentric settings of swing control spare, the wheel of deflection then can return automatically just, so scooter keeps stable direction and accelerates the antedisplacement.

When the user need turn, then make the wheel of scooter one side receive great effort through changing the focus, backup pad and fixing base can adjust seat deflection axle or hang the roof beam deflection axle and twist reverse an angle a little relatively, and then realize turning.

Claims

1. The utility model provides a but wheelset of automatic displacement walking which characterized in that: the suspension beam comprises a suspension beam (1), guide rods (2) are connected to two ends of the suspension beam (1) outwards and upwards or downwards in an inclined mode, a wheel assembly (3) is connected to each guide rod (2) in a sliding mode, the wheel assembly (3) comprises a connecting piece (31) and a wheel (32), the connecting piece (31) is connected to the guide rods (2) in a sliding mode, the wheel (32) is connected to the connecting piece (31) and can horizontally swing relative to the connecting piece (31) and rotate around the axis of the connecting piece (31), a resetting piece (10) used for elastically acting on the wheel assembly (3) is further connected to the connecting piece (31) directly or indirectly, so that the two wheel assemblies (3) slide along the corresponding guide rods (2) under the action of external pressure to increase or reduce the distance between the two wheel assemblies (3), and the resetting piece (10) pulls or presses the wheel assemblies (3) when the suspension beam (1) withdraws or presses the external pressure, so that the distance between the two wheel assemblies (3) is reduced or increased.

2. An automatically variable-pitch-walking wheel set according to claim 1, wherein: the wheel subassembly (3) still includes swing control piece (33) and antifriction bearing (34), the relative fixed connection in the hole of wheel (32) of outer lane of antifriction bearing (34), two swing control piece (33) sets up in the relative both sides of inner circle of antifriction bearing (34) in opposite directions, two be formed with installation space (35) between swing control piece (33), connecting piece (31) are connected with two swing control piece (33) through installation space (35).

3. An automatically variable-pitch-walking wheel set according to claim 2, wherein: the central axis of the swinging control piece (33) and the central axis of the rolling bearing (34) are arranged in a spatial intersection manner, and the central axis of the swinging control piece (33) is arranged on the front side of the central axis of the rolling bearing (34) along the walking direction of the wheel (32).

4. An automatically variable-pitch wheel set according to claim 2 or 3, wherein: a pad piece (36) is arranged between the inner ring of the rolling bearing (33) and the swinging control piece (33), the pad piece (36) is directly or indirectly fixedly arranged relative to the inner ring of the rolling bearing (33), and a pad piece guide groove (361) used for being matched with the swinging control piece (33) is arranged on one surface, in contact with the swinging control piece (33), of the pad piece (36); and a connecting piece guide groove (311) matched with the swinging control piece (33) is formed in one surface, in contact with the swinging control piece (33), of the connecting piece (31).

5. An automatically variable-pitch-walking wheel set according to claim 1, wherein: the guide rod (2) is connected to the outer end of the suspension beam (1) in an upward inclined mode, and the reset piece (10) is a tension spring and is arranged between the connecting piece (31) and the suspension beam (1); or the reset piece (10) is a pressure spring and is arranged between the outer end of the guide rod (2) and the connecting piece (31).

6. An automatically variable-pitch-walking wheel set according to claim 1, wherein: the guide rod (2) is connected to the outer end of the suspension beam (1) in a downward inclined mode, and the reset piece (10) is a tension spring and is arranged between the connecting piece (31) and the outer end of the guide rod (2); or the reset piece (10) is a compression spring and is arranged between the outer end of the suspension beam (1) and the connecting piece (31).

7. An automatically variable-pitch-walking wheel set according to claim 1, wherein: the suspension beam (1) is formed by a rod piece.

8. The wheel set capable of automatically walking with variable pitch according to claim 1 is characterized in that the suspension beam (1) is composed of two half rod pieces, the end parts, far away from the wheel set (3), of the two half rod pieces of the suspension beam (1) are provided with a suspension beam hinge lug (11) and a suspension beam adjusting free end (12), the suspension beam hinge lug (11) and the suspension beam adjusting free end (12) of the same half rod piece of the suspension beam (1) are of L type structures, an adjusting seat (13) is hinged between the two suspension beam hinge lugs (11), and the adjusting seat (13) is provided with an adjusting mechanism (14) for adjusting the inclination angle of the guide rod (2).

9. An automatically variable-pitch-walking wheel set according to claim 8, wherein: the adjusting mechanism (14) is located between the two suspension beam adjusting free ends (12), the adjusting mechanism (14) comprises an adjusting piece (141), an adjusting elastic piece (142) and an adjusting pressing block (143), the adjusting elastic piece (142) is arranged between the adjusting seat (13) and the two suspension beam adjusting free ends (12), the adjusting piece (141) is arranged on the adjusting seat (13), and the adjusting pressing block (143) is connected with the adjusting piece (141) through threads to limit and clamp the two suspension beam adjusting free ends (12);

or the adjusting piece (141) is connected with the adjusting seat (13) through threads, and the adjusting pressing block (143) is relatively and fixedly connected to the outer end of the adjusting piece (141) to limit and clamp the adjusting free ends (12) of the two suspension beams.

10. The utility model provides a scooter, includes backup pad (5), the relative fixedly connected with fixing base (6) of position around backup pad (5) bottom, its characterized in that: the wheelset capable of automatically varying the distance to walk as claimed in claim 1, wherein each of the fixing seats (6) is directly or indirectly connected to the corresponding suspension beam (1).

11. The scooter of claim 10, wherein the suspension beam (1) is composed of two half rods, each of the fixing bases (6) is indirectly connected with the corresponding suspension beam (1), the two half rods of the suspension beam (1) are far away from the end of the wheel assembly (3) and provided with suspension beam hinge lugs (11) and suspension beam adjusting free ends (12), the same suspension beam hinge lugs (11) and suspension beam adjusting free ends (12) of the half rods of the suspension beam (1) are L-shaped structures, two adjusting bases (13) are hinged between the suspension beam hinge lugs (11), adjusting mechanisms (14) for adjusting the inclination angle of the guide rod (2) are arranged on the adjusting bases (13), each of the fixing bases (6) are indirectly connected with the suspension beam (1) through the adjusting bases (13), two ends of the fixing base (6) are respectively provided with a fixing base deflection guide hole (61) and a fixing base deflection shaft (62), the central axes of the fixing base deflection guide hole (61) and the fixing base deflection shaft (62) intersect with each other, the intersection point of the fixing base deflection shaft (6) is located below the fixing base (6), the adjusting base deflection shaft (13) is provided with a corresponding adjusting nut (131) for rotatably connecting the adjusting base deflection shaft (132), and the adjusting base deflection shaft (13) is provided with a corresponding adjusting nut (13) for connecting the adjusting base (13).

12. The scooter of claim 11, wherein: and deflection shaft sleeves (133) are arranged on the fixed seat deflection shaft (62) and positioned at two ends of the deflection guide hole (132) of the adjusting seat.

13. The scooter of claim 10, wherein: each fixing seat (6) is directly connected with a suspension beam (1), a fixing seat deflection guide hole (61) and a fixing seat deflection shaft (62) are respectively arranged at two ends of each fixing seat (6), the central axes of the fixing seat deflection guide holes (61) and the fixing seat deflection shafts (62) are intersected, the intersection point of the central axes is located below the upper surface of each fixing seat (6), the suspension beam (1) is correspondingly obliquely provided with a suspension beam deflection shaft which is rotatably matched and connected with the fixing seat deflection guide holes (61), the suspension beam (1) is correspondingly provided with a suspension beam deflection guide hole which is matched and connected with the fixing seat deflection shafts (62), and the fixing seat deflection shafts (62) penetrate through the suspension beam deflection guide holes and are in threaded connection with deflection adjusting nuts (63).