CN215851680U

CN215851680U - Scooter and telescopic connection structure thereof

Info

Publication number: CN215851680U
Application number: CN202122404139.0U
Authority: CN
Inventors: 包鸿志
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-02-18
Anticipated expiration: 2031-09-30

Abstract

The embodiment of the utility model provides a scooter and a telescopic connection structure thereof, wherein the telescopic connection structure is used for telescopically assembling a telescopic rod on an outer pipe and comprises: the fixing sleeve is in a sleeve shape and is coaxially fixed at one end of the outer pipe by one end, a plurality of elastic arms are arranged at one end of the fixing sleeve, which is far away from the outer pipe, around the central axis, the outer wall of each elastic arm forms a pressing inclined plane around the central axis of the fixing sleeve, an external thread part is formed on the outer wall of the fixing sleeve, and one end of the telescopic rod penetrates through the fixing sleeve and is inserted into the outer pipe; the locking sleeve is in a sleeve shape and is in threaded connection with the fixing sleeve, an inner thread portion in threaded connection with the outer thread portion is formed in the wall of an inner hole of the locking sleeve, an inner hole in one end, far away from the outer pipe, of the locking sleeve is formed into a conical hole, the diameter of the conical hole is gradually increased from one end, far away from the outer pipe, to one end, close to the outer pipe, of the locking sleeve, and when the locking sleeve advances for a preset distance spirally relative to the fixing sleeve, the wall of the conical hole is abutted against the inclined plane so that the inner wall of each elastic arm can clamp the telescopic rod. The embodiment can adjust the telescopic length of the telescopic rod at will.

Description

Scooter and telescopic connection structure thereof

Technical Field

The embodiment of the utility model relates to the technical field of scooters, in particular to a telescopic connection structure of a scooter.

Background

A large number of flexible connection structures are adopted on the products such as the existing bicycles, scooters, baby carriages and the like to connect a telescopic rod (which can be a solid rod or a hollow tube) to an outer tube in a telescopic way, so that the extension length of the telescopic rod can be flexibly adjusted to meet the use requirements of different users. The existing telescopic connection structure is mainly characterized in that a through hole is formed in an outer tube, a group of positioning holes which are distributed along the axial direction are correspondingly formed in a telescopic rod, different positioning holes are aligned to the through hole in the outer tube, and a bolt penetrates through the through hole in the outer tube and is inserted into the corresponding positioning hole in the telescopic rod to position the telescopic rod. The telescopic connecting structure can only realize the positioning of the telescopic rod at the position where the positioning hole is coaxially aligned with the through hole, so that the telescopic length of the telescopic rod cannot be selected at will, and the extension length of the telescopic rod cannot meet the requirements of users with certain specific heights.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the embodiment of the utility model is to provide a telescopic connection structure of a scooter, which can randomly adjust the telescopic length of a telescopic rod.

The embodiment of the utility model further aims to solve the technical problem of providing a scooter, which can randomly adjust the telescopic length of a telescopic rod.

In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions: the utility model provides a scooter's flexible connection structure for assemble the telescopic link on the outer tube telescopically, include:

the fixing sleeve is in a sleeve shape and is coaxially fixed at one end of the outer pipe, one end, away from the outer pipe, of the fixing sleeve is provided with a plurality of elastic arms around the central axis, the outer wall of each elastic arm further surrounds the central axis of the fixing sleeve to form a pressing inclined plane, an external thread part is further formed on the outer wall of the fixing sleeve, and one end of the telescopic rod penetrates through the fixing sleeve and is inserted into the outer pipe; and the lock sleeve is in a sleeve shape and is in threaded connection with the fixed sleeve, the inner hole wall of the lock sleeve is further formed into an inner thread part which is in threaded connection with the outer thread part on the fixed sleeve, one end inner hole of the outer tube is formed into a conical hole, the aperture of the conical hole is gradually increased from one end of the outer tube to one end close to the outer tube, when the fixed sleeve advances at a preset distance in a spiral mode, the hole wall of the conical hole is correspondingly abutted against the abutting inclined surface on the outer wall of each elastic arm so that the inner wall of each elastic arm can tightly clamp the outer wall of the telescopic rod.

Furthermore, the inner wall of the fixing sleeve is symmetrically protruded to form an inserting convex strip extending along the axial direction, one end of the outer pipe connected with the fixing sleeve is symmetrically provided with a strip-shaped slot extending from the end surface of the outer pipe to the other end of the outer pipe along the axial direction, the fixing sleeve is further provided with a screw hole, a locking hole is correspondingly arranged on the outer pipe, the fixing sleeve is inserted into the strip-shaped slot on the outer pipe along the axial direction by the inserting convex strip, and in addition, a screw penetrates through the screw hole and is locked in the locking hole of the outer pipe to relatively fix the fixing sleeve and the outer pipe.

Furthermore, an elastic convex pin is further arranged at the position, close to the end, of one end, inserted into the outer tube, of the telescopic rod, a plurality of positioning holes are correspondingly formed in the wall of the outer tube and are axially distributed along the outer tube, and when the telescopic rod is inserted in place, the elastic convex pin is correspondingly clamped into one of the positioning holes.

Furthermore, a notch groove extending along the axial direction of the telescopic rod is further formed in the outer wall of the telescopic rod, and the inserting convex strip on the inner wall of the fixed sleeve is correspondingly inserted into the notch groove.

On the other hand, in order to solve the further technical problem, the embodiment of the present invention provides the following technical solutions: the utility model provides a scooter, includes the footboard, divide and locate the front wheel and the rear wheel at both ends around the footboard bottom, with the bottom equipment in the outer tube at footboard front end top, with the bottom with the telescopic link that the outer tube was pegged graft mutually and violently locate the holding rod on telescopic link top, outer tube and telescopic link are through as above-mentioned arbitrary flexible connection structure be connected.

Furthermore, a steering structure is assembled at the front end of the pedal, the steering structure comprises a wheel shaft for the front wheel to be pivoted on, a first connecting seat arranged at the bottom of the front end of the pedal, a second connecting seat arranged on the wheel shaft, a steering reset torsion spring arranged between the first connecting seat and the second connecting seat, and a pivoting piece for coaxially pivoting the first connecting seat and the second connecting seat, the pivoting axis of the pivoting piece is obliquely crossed with the horizontal plane, a jack is arranged at the position, deviating from the pivoting axis, of the first connecting seat, a sliding hole is correspondingly arranged on the second connecting seat, the steering structure further comprises a locking pin which is slidably inserted in the sliding hole and moves between a locking position and an unlocking position, and a positioning structure for movably positioning the locking pin at the locking position and the unlocking position respectively, when the locking pin moves to the locking position, the head of the locking pin extends out of the sliding hole and then is inserted into the insertion hole to coaxially fix the first connecting seat and the second connecting seat.

Furthermore, the first connecting seat is provided with a containing groove for assembling a steering reset torsion spring, a sleeve connecting column is convexly formed in the containing groove, a first shaft hole penetrates through the pedal in the middle of the sleeve connecting column, a second shaft hole penetrates through a wheel shaft on the second connecting seat, two limiting clamping blocks are arranged on the second connecting seat in a penetrating mode and surround the central axis of the second shaft hole, the steering reset torsion spring is sleeved on the sleeve connecting column through a central hole, when the first connecting seat and the second connecting seat are assembled with each other, the first shaft hole and the second shaft hole are coaxially opposite, the two limiting clamping blocks are inserted into the containing groove and respectively abut against and positioned with two torsion arms of the steering reset torsion spring, the pivot joint part comprises a bearing coaxially assembled in the second shaft hole, a pivot bolt and a nut, wherein the thread section of the pivot bolt sequentially penetrates through the first shaft hole, the central hole of the bearing and the second shaft hole, and the nut is screwed on the tail end of the thread section of the pivot bolt, the central axis of the pivot bolt is obliquely crossed with the horizontal plane at a preset included angle.

Furthermore, two positioning grooves are formed in the side surface of the locking pin in the length direction, and the positioning structure comprises a mounting hole which is formed in the second connecting seat and vertically penetrates through the sliding hole and a ball screw which is assembled in the mounting hole and elastically abuts against the corresponding positioning groove in the side surface of the locking pin through a ball at the head.

Furthermore, a connecting sleeve is arranged in the middle section of the holding rod, a pair of coaxial positioning holes are further formed in the connecting sleeve and perpendicular to the axial direction, a pair of coaxial shaft holes are formed in one end, connected with the holding rod, of the telescopic rod and perpendicular to the axial direction, the holding rod is sleeved on the top end of the telescopic rod through the connecting sleeve, the positioning holes are coaxially opposite to the shaft holes, a connecting bolt is inserted into the positioning holes in one side of the connecting sleeve, penetrates through the shaft holes of the telescopic rod and then is locked in the positioning holes in the other side of the connecting sleeve, and the telescopic rod and the holding rod are fixed relatively.

Furthermore, set up the breach groove of following the axial extension of telescopic link on the telescopic link outer wall, the inner wall of connecting sleeve still protrusion is equipped with joint portion, the holding rod with connecting sleeve cup joint when the telescopic link top, with joint portion with on the telescopic link breach groove joint location.

After the technical scheme is adopted, the embodiment of the utility model at least has the following beneficial effects: the embodiment of the utility model is characterized in that the fixing sleeve and the locking sleeve are arranged, wherein one end of the fixing sleeve is coaxially fixed at one end part of the outer pipe, the locking sleeve is screwed on the fixing sleeve, the external thread part of the fixing sleeve is in threaded fit with the internal thread part of the locking sleeve, during specific operation, the inner wall of the conical hole of the locking sleeve is separated from the abutting inclined plane of each elastic arm of the abutting fixed sleeve by screwing the locking sleeve, the inner wall of each elastic arm is separated from the outer wall of the clamping telescopic rod immediately, at the moment, the telescopic rod can slide freely along the axial direction of the outer tube, when the telescopic link slides to the anticipated position, rethread twist the lock sleeve and make the bell mouth inner wall of lock sleeve support again and press the support of each bullet arm of fixed cover and press the inclined plane, make the inner wall of each bullet arm press from both sides the outer wall of tight telescopic link again, realize the fixed to the telescopic link, simple structure can adjust the flexible length of telescopic link wantonly, and the operation is also convenient relatively.

Drawings

Fig. 1 is a schematic view of a disassembled dynamic structure of an alternative embodiment of the telescopic connection structure of the scooter of the present invention.

Fig. 2 is a schematic view of a combined structure of an alternative embodiment of the telescopic connection structure of the scooter of the present invention.

Fig. 3 is a schematic cross-sectional view of an alternative embodiment of the telescopic connection structure of the scooter of the present invention along the central axis of the length.

Fig. 4 is a schematic view of the overall structure of an alternative embodiment of the scooter of the present invention.

Fig. 5 is a schematic view of a detached structure at a steering structure position of an alternative embodiment of the scooter of the present invention.

Fig. 6 is a schematic cross-sectional view of a scooter according to an alternative embodiment of the present invention.

Fig. 7 is a schematic view of a detachable structure at a connecting position of a holding rod and a telescopic rod of an alternative embodiment of the scooter of the utility model.

Fig. 8 is a schematic cross-sectional view of a connection position of a grip and a telescopic rod of an alternative embodiment of the scooter of the present invention.

Fig. 9 is a schematic structural view of the scooter of the present invention with the grip inverted.

Detailed Description

The present application will now be described in further detail with reference to the accompanying drawings and specific examples. It should be understood that the following illustrative embodiments and description are only intended to explain the present invention, and are not intended to limit the present invention, and features of the embodiments and examples in the present application may be combined with each other without conflict.

As shown in fig. 1 to 3, an alternative embodiment of the present invention provides a telescopic connection structure 1 of a scooter, for telescopically assembling a telescopic rod 2 on an outer tube 3, comprising:

the fixing sleeve 10 is in a sleeve shape and is coaxially fixed at one end of the outer tube 3, one end, away from the outer tube 3, of the fixing sleeve 10 is provided with a plurality of elastic arms 101 around the central axis, the outer wall of each elastic arm 101 further surrounds the central axis of the fixing sleeve 10 to form a pressing inclined surface 101a, an external thread part 103 is further formed on the outer wall of the fixing sleeve 10, and one end of the telescopic rod 2 penetrates through the fixing sleeve 10 and is inserted into the outer tube 3; and

locking sleeve 12 is cover tube shape and spiro union in on the fixed cover 10, the hole pore wall of locking sleeve 12 still form with the internal thread portion 121 of the mutual spiro union of external screw thread portion 103 on the fixed cover 10, the one end hole shaping that outer tube 3 was kept away from to the one end that is close to outer tube 3 taper hole 123 that progressively enlarges for the aperture from the one end of keeping away from outer tube 3 for locking sleeve 12 for when fixed cover 10 spiral advance the predetermined distance, the corresponding support of pore wall of taper hole 123 presses inclined plane 101a of pressing on each elastic arm 101 outer wall so that the outer wall of the tight telescopic link 2 of inner wall clamp of each elastic arm 101.

In the embodiment of the utility model, by arranging the fixing sleeve 10 and the locking sleeve 12, wherein one end of the fixing sleeve 10 is coaxially fixed at one end of the outer tube 3, the locking sleeve 12 is screwed on the fixing sleeve 10, the external thread part 103 of the fixing sleeve 10 is in threaded fit with the internal thread part 121 of the locking sleeve 12, during specific operation, the locking sleeve 12 is screwed to separate the inner wall of the tapered hole 123 of the locking sleeve 12 from the abutting inclined surface 101a of each elastic arm 101 abutting against the fixing sleeve 10, the inner wall of each elastic arm 101 is separated from the outer wall of the clamping telescopic rod 2, at this time, the telescopic rod 2 can be arbitrarily slid along the axial direction of the outer tube 3, when the telescopic rod 2 is slid to a desired position, the inner wall of the tapered hole 123 of the locking sleeve 12 again abuts against the abutting inclined surface 101a of each elastic arm 101 of the fixing sleeve 10 by screwing the locking sleeve 12, so that the inner wall of each elastic arm 101 re-clamps the outer wall of the telescopic rod 2, and the telescopic rod 2 is fixed, simple structure can adjust the flexible length of telescopic link 2 wantonly, and the operation is also convenient relatively.

In an alternative embodiment of the present invention, as shown in fig. 1 and 3, the inner wall of the fixing sleeve 10 is symmetrically protruded to form an insertion convex strip 105 extending along the axial direction, one end of the outer tube 3 connected to the fixing sleeve 10 is symmetrically provided with a strip-shaped slot 30 extending from the end surface of the outer tube 3 to the other end of the outer tube 3 along the axial direction by a predetermined length, the fixing sleeve 10 is further provided with a screw hole 107, and the outer tube 33 is correspondingly provided with a locking hole 32, the fixing sleeve 10 is inserted into the strip-shaped slot 30 on the outer tube 3 along the axial direction by the insertion convex strip 105, and a screw 34 passes through the screw hole 107 and is locked in the locking hole 32 of the outer tube 3 to fix the fixing sleeve 10 and the outer tube 3 relatively. In this embodiment, the screw 34 penetrates through the screw hole 107 and is locked in the locking hole 32 of the outer tube 3, so as to ensure stable connection between the fixing sleeve 10 and the outer tube 3, and the loosening and the dislocation are not easy to occur, and the screw hole 107 and the locking hole 32 are accurately aligned during assembly through the insertion cooperation of the strip-shaped slot 30 and the insertion convex strip 105, thereby improving the assembly efficiency.

In an alternative embodiment of the present invention, as shown in fig. 1 and 3, an elastic protruding pin 21 is further disposed at a position close to an end portion of one end of the telescopic rod 2 inserted into the outer tube 3, a plurality of positioning holes 36 axially arranged along the outer tube 3 are correspondingly disposed on a tube wall of the outer tube 3, and when the telescopic rod 2 is inserted in place, the elastic protruding pin 21 is correspondingly inserted into one of the positioning holes 36. In the embodiment, the elastic convex pin 21 and the positioning hole 36 are clamped and matched with each other when the telescopic rod 2 is inserted in place, so that the telescopic rod 2 can be effectively pre-positioned.

In an alternative embodiment of the present invention, as shown in fig. 1 and 3, the outer wall of the telescopic rod 2 is further provided with a notch 23 extending along the axial direction of the telescopic rod 2, and the insertion convex strip 105 on the inner wall of the fixing sleeve 10 is correspondingly inserted into the notch 23. In this embodiment, still through the grafting cooperation of breach groove 23 on the outer wall of telescopic link 2 and grafting sand grip 105 on the fixed cover 10 inner wall, can effectually realize telescopic link 2 and fixed cover 10 in ascending location of circumference, improve the efficiency of equipment.

On the other hand, as shown in fig. 4, an embodiment of the present invention provides a scooter, which includes a pedal 4, a front wheel 5 and a rear wheel 6 respectively disposed at front and rear ends of a bottom of the pedal 4, an outer tube 3 assembled at a bottom end of the front end of the pedal 4, a telescopic rod 2 inserted into the outer tube 3 at a bottom end thereof, and a grip 7 transversely disposed at a top end of the telescopic rod 2, wherein the outer tube 3 and the telescopic rod 2 are connected by the telescopic connection structure 1 as described above. The outer tube 3 and the telescopic rod 2 of the scooter are connected by the telescopic connection structure 1, so that the telescopic length of the telescopic rod 2 can be simply and rapidly adjusted; the scooter also comprises a pedal 4, a front wheel 5, a rear wheel 6, a holding rod 7 and the like, which form the basic structural form of the scooter and are used for normal use of a user.

In an alternative embodiment of the present invention, as shown in fig. 5-6, a steering structure 8 is further assembled at the front end of the pedal 4, the steering structure 80 includes a wheel axle 80 for the front wheel 5 to pivot thereon, a first connecting seat 81 disposed at the bottom of the front end of the pedal 4, a second connecting seat 82 disposed at the bottom of the front end of the wheel axle 80, a steering return torsion spring 83 disposed between the first connecting seat 81 and the second connecting seat 82, and a pivot member 84 coaxially pivoting the first connecting seat 81 and the second connecting seat 82, a pivot axis of the pivot member 84 is oblique to a horizontal plane, a plug hole 810 is disposed at a position deviating from the pivot axis on the first connecting seat 81, a sliding hole 821 is correspondingly disposed on the second connecting seat 82, the steering structure 8 further includes a locking pin 85 slidably inserted into the sliding hole 821 and moving between a locking position and an unlocking position, and a locking pin 85 for movably positioning the locking pin 85 at the locking position and the unlocking position respectively When the locking pin 85 moves to the locking position, the head of the locking pin 85 protrudes out of the sliding hole 821 and then is inserted into the insertion hole 810 to coaxially fix the first connecting seat 81 and the second connecting seat 82. In this embodiment, the insertion hole 810 is formed in the first connecting seat 81 at a position deviating from the pivot axis, the sliding hole 821 is correspondingly formed in the second connecting seat 82, the locking pin 85 is additionally arranged to be slidably inserted into the sliding hole 821 and move between the locking position and the unlocking position, when the locking pin 85 moves to the locking position, the head of the locking pin 85 extends out of the sliding hole 821 and is inserted into the insertion hole 810, so that the first connecting seat 81 and the second connecting seat 82 are coaxially fixed and cannot relatively rotate, that is, the steering function of the scooter is locked, and when the locking pin 85 is in the unlocking position, the first connecting seat 81 and the second connecting seat 82 can relatively rotate, that is, the steering function of the scooter is unlocked, and a user can flexibly select whether to start the steering function according to the user's needs, and especially a beginner can conveniently use the scooter; in addition, still through setting up location structure 86, effectual with the location of lock pin 86 in latched position and unblock position, guarantee the stable locking and the unblock of lock pin 86.

In an alternative embodiment of the present invention, as shown in fig. 5 to 6, the first connecting seat 81 is provided with a receiving groove 812 for assembling the steering return torsion spring 83, a sleeve column 813 is formed in the receiving groove 812 in a protruding manner, a first shaft hole 814 is formed in the middle of the sleeve column 813 through the pedal 4, a second shaft hole 822 is formed in the second connecting seat 82 through the shaft 80, two limiting blocks 824 are arranged around the central axis of the second shaft hole 822, the steering return torsion spring 83 is sleeved on the sleeve column 813 through a central hole, when the first connecting seat 81 and the second connecting seat 82 are assembled with each other, the first shaft hole 814 is coaxially aligned with the second shaft hole 822, the two limiting blocks 824 are inserted into the receiving groove 812 and are respectively abutted against and positioned corresponding to the two torsion arms 830 of the steering return torsion spring 83, the pivot element 84 includes a bearing 841, a bearing cap 814 is coaxially assembled in the second shaft hole 822, A pivot bolt 843 having a threaded section sequentially passing through the first shaft hole 814, the center hole of the bearing 841 and the second shaft hole 822, and a nut 845 screwed onto the end of the threaded section of the pivot bolt 843, wherein the central axis of the pivot bolt 843 is oblique to the horizontal plane at a predetermined included angle. In this embodiment, the accommodating groove 812 is used for accommodating the steering torsion spring 83, and the positioning of the steering torsion spring 83 is realized through the sleeve connecting post 813, and the pivot piece 84 is conveniently assembled by the pivot bolt 843, the nut 845 and the bearing 841, so that the smooth rotation of the first connecting seat 81 and the second connecting seat 82 is ensured.

When the user needs to turn the scooter, the user operates the scooter to slightly tilt towards a certain side, because the central axis of the pivot bolt 843 of the pivot joint 84 is obliquely crossed with the horizontal plane at a predetermined included angle, when the scooter tilts, the wheel shaft 80 rotates around the pivot axis relative to the pedal 4, that is, the second connecting seat 82 rotates relative to the first connecting seat 81, at this time, because the two limiting blocks 824 on the second connecting seat 82 are inserted into the accommodating groove 812 and respectively abut against and positioned with the two torsion arms 830 of the steering return torsion spring 83, the limiting blocks 824 on the corresponding side press the torsion spring of the steering return torsion spring 83 when the second connecting seat 82 rotates, so that the steering return torsion spring 83 continues to accumulate elastic potential energy, after the scooter finishes turning, the user cancels the tilting of the scooter, so that the second connecting seat 82 finishes the rotation relative to the first connecting seat 81, and at this time, the steering return torsion spring 83 is in a recovery deformation, the elastic potential energy is released to push the limit block 824, so that the wheel axle 80 rotates reversely relative to the pedal 4, the wheel axle 80 is reset, and the whole steering action is completed.

In an alternative embodiment of the present invention, as shown in fig. 5 and 6, two positioning grooves 851 are disposed on a side surface of the locking pin 85 in a length direction, and the positioning structure 86 includes a mounting hole 861 disposed on the second connecting seat 82 and vertically penetrating to the sliding hole 821, and a ball screw 863 assembled in the mounting hole 861 and elastically pressed against the corresponding positioning groove 851 on the side surface of the locking pin 85 by a ball 863a of a head. In this embodiment, the bead 863a at the head of the bead screw 863 abuts against the corresponding positioning groove 851 on the surface of the locking pin 85, when the locking pin 85 correspondingly moves to the locking position and the unlocking position, the bead screw 863 can effectively realize the positioning of the locking pin 85, and the locking pin 85 can be adjusted by a user through slight force application, which is very convenient.

In an optional embodiment of the present invention, a connection sleeve 70 is disposed at the middle section of the holding rod 7, a pair of coaxial positioning holes 701 is further disposed on the connection sleeve 70 perpendicular to the axial direction, a pair of coaxial shaft holes 25 is disposed at the end of the telescopic rod 2 connected to the holding rod 7 perpendicular to the axial direction, the holding rod 7 is sleeved on the top end of the telescopic rod 2 by the connection sleeve 70, the positioning holes 701 and the shaft holes 25 are coaxially opposite, and a connection bolt 27 is inserted from the positioning hole 701 at one side of the connection sleeve 70, penetrates through the shaft hole 25 of the telescopic rod 2, and then is locked to the positioning hole 701 at the other side of the connection sleeve 70 to relatively fix the telescopic rod 2 and the holding rod 7. In the embodiment, the connecting sleeve 70 is sleeved on the telescopic rod 2, and the connecting bolt 27 is further adopted to be locked and matched with the positioning hole 701 and the shaft hole 25, so that the stable connection between the holding rod 7 and the telescopic rod 2 is ensured, and the shaking is not easy to occur.

In an alternative embodiment of the present invention, as shown in fig. 7 to 9, the outer wall of the telescopic rod 2 is provided with a gap groove 23 extending along the axial direction of the telescopic rod 2, the inner wall of the connecting sleeve 70 is further provided with a clamping portion 703 in a protruding manner, and when the connecting sleeve 70 is sleeved on the top of the telescopic rod 2, the holding rod 7 is positioned by clamping the clamping portion 703 with the gap groove 23 of the telescopic rod 2. In this embodiment, through joint portion 703 with on the telescopic link 2 breach groove 23 joint location effectively guarantees telescopic link 2 and connecting sleeve 70 stable connection, is difficult for rocking. In specific implementation, it can be understood that, as shown in fig. 7 to 9, the clamping portion 703 may be a clamping protrusion or a clamping protrusion disposed on an inner wall of the connecting sleeve 70 along an axial direction of the connecting sleeve 70, and correspondingly, the notch 23 may be an open slot disposed at an end of the telescopic rod 2 or an axial slot disposed on an outer wall of the telescopic rod 2 along the axial direction of the telescopic rod 2.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides a scooter's flexible connection structure for assemble the telescopic link on the outer tube telescopically, its characterized in that, flexible connection structure includes:

the fixing sleeve is in a sleeve shape and is coaxially fixed at one end of the outer pipe, one end, away from the outer pipe, of the fixing sleeve is provided with a plurality of elastic arms around the central axis, the outer wall of each elastic arm further surrounds the central axis of the fixing sleeve to form a pressing inclined plane, an external thread part is further formed on the outer wall of the fixing sleeve, and one end of the telescopic rod penetrates through the fixing sleeve and is inserted into the outer pipe; and

the lock sleeve is cover tube shape and spiro union in fixed sheathe in, the hole pore wall of lock sleeve still form with the internal thread portion of the mutual spiro union of external screw thread portion on the fixed cover, the one end hole shaping that the outer tube was kept away from to the one end that is close to the outer tube for the aperture is from the one end of keeping away from the outer tube to the taper hole that gradually increases of one end that is close to the outer tube, the lock sleeve for when fixed cover spiral advances the predetermined distance, the corresponding support on the pore wall of taper hole is pressed the inclined plane so that the outer wall of the inner wall clamp telescopic link of each elastic arm of support on each elastic arm outer wall.

2. The telescopic connection structure of a scooter as claimed in claim 1, wherein the inner wall of the fixing sheath is symmetrically protruded to form an insertion protrusion extending in the axial direction, one end of the outer tube connected to the fixing sheath is symmetrically provided with a strip-shaped slot extending from the end surface of the outer tube to the other end of the outer tube in the axial direction, the fixing sheath is further provided with a screw hole, the outer tube is correspondingly provided with a locking hole, the fixing sheath is inserted into the strip-shaped slot of the outer tube in the axial direction by the insertion protrusion, and a screw passes through the screw hole and is locked in the locking hole of the outer tube to fix the fixing sheath and the outer tube relatively.

3. The telescopic connection structure of a scooter according to claim 2, wherein the telescopic rod is further provided with a plurality of elastic protruding pins at the end portion of the telescopic rod inserted into the outer tube, the wall of the outer tube is correspondingly provided with a plurality of positioning holes arranged along the axial direction of the outer tube, and the elastic protruding pins are correspondingly clamped into one of the positioning holes when the telescopic rod is inserted in place.

4. The telescopic connection structure of a scooter as claimed in claim 3, wherein the outer wall of the telescopic shaft is further formed with a notch groove extending along the axial direction of the telescopic shaft, and the insertion protrusion strip on the inner wall of the fixing sheath is correspondingly inserted into the notch groove.

5. A scooter, comprising a pedal, a front wheel and a rear wheel respectively arranged at the front end and the rear end of the bottom of the pedal, an outer tube assembled at the top of the front end of the pedal by the bottom end, a telescopic rod inserted with the outer tube by the bottom end and a holding rod transversely arranged at the top end of the telescopic rod, wherein the outer tube and the telescopic rod are connected by a telescopic connection structure according to any one of claims 1 to 4.

6. The scooter of claim 5, wherein the front end of the pedal is further assembled with a steering structure, the steering structure comprises a wheel axle for the front wheel to pivot on, a first connecting seat provided on the bottom of the front end of the pedal, a second connecting seat provided on the wheel axle, a steering return torsion spring provided between the first connecting seat and the second connecting seat, and a pivot member for coaxially pivoting the first connecting seat and the second connecting seat, the pivot member having a pivot axis inclined to a horizontal plane, the first connecting seat having a receptacle at a position deviating from the pivot axis, the second connecting seat having a corresponding slide hole, the steering structure further comprising a locking pin slidably inserted into the slide hole and moving between a locking position and an unlocking position, and a positioning structure for movably positioning the locking pin at the locking position and the unlocking position respectively, when the locking pin moves to the locking position, the head of the locking pin extends out of the sliding hole and then is inserted into the insertion hole to coaxially fix the first connecting seat and the second connecting seat.

7. The scooter as claimed in claim 6, wherein the first connecting seat is provided with a receiving groove for assembling the steering return torsion spring, the receiving groove is formed with a sleeve post protruding therein, the middle portion of the sleeve post is provided with a first shaft hole through the pedal, the second connecting seat is provided with a second shaft hole through the wheel shaft and two limiting blocks are arranged around the central axis of the second shaft hole, the steering return torsion spring is sleeved on the sleeve post through the central hole, when the first connecting seat and the second connecting seat are assembled with each other, the first shaft hole and the second shaft hole are coaxially aligned, the two limiting blocks are inserted into the receiving groove and respectively abutted against and positioned with the two torsion arms of the steering return torsion spring, the pivot member comprises a bearing coaxially assembled in the second shaft hole, a pivot bolt passing through the first shaft hole, the central hole of the bearing and the second shaft hole in sequence through a thread section, and a nut screwed on the end of the thread section of the pivot bolt, the central axis of the pivot bolt is obliquely crossed with the horizontal plane at a preset included angle.

8. The scooter of claim 6, wherein the surface of the locking pin is provided with two positioning grooves along the length direction, and the positioning structure comprises a mounting hole vertically penetrating the sliding hole and a ball screw assembled in the mounting hole and elastically pressing against the corresponding positioning groove on the surface of the locking pin by a ball at the head.

9. The scooter as claimed in claim 6, wherein the middle portion of the grip is provided with a connection sleeve, the connection sleeve is further provided with a pair of coaxial positioning holes perpendicular to the axial direction, the end of the expansion link connected with the grip is provided with a pair of coaxial shaft holes perpendicular to the axial direction, the grip is sleeved on the top end of the expansion link by the connection sleeve, the positioning holes are coaxially opposite to the shaft holes, and a connection bolt is inserted into the positioning hole on one side of the connection sleeve, penetrates through the shaft holes of the expansion link and then is locked on the positioning hole on the other side of the connection sleeve to fix the expansion link and the grip relatively.

10. The scooter as claimed in claim 9, wherein the outer wall of the telescopic rod is provided with a notch extending along the axial direction of the telescopic rod, the inner wall of the connecting sleeve is further provided with a clamping portion in a protruding manner, and the holding rod is clamped and positioned with the notch on the telescopic rod by the clamping portion when the connecting sleeve is sleeved on the top of the telescopic rod.