CN111152874A

CN111152874A - Scooter

Info

Publication number: CN111152874A
Application number: CN202010098281.4A
Authority: CN
Inventors: 陈晓锋
Original assignee: Guangzhou Baole Industrial Development Co ltd
Current assignee: Guangzhou Baole Industrial Development Co ltd
Priority date: 2020-02-17
Filing date: 2020-02-17
Publication date: 2020-05-15

Abstract

The invention discloses a scooter, which comprises a handle riser component, a frame component, front wheels and rear wheels, wherein the handle riser component is arranged on the frame component and can move between an unfolding position and a folding position; the handle vertical pipe assembly comprises a steering vertical pipe and a positioning column; the frame assembly comprises a connecting part and a pedal platform, wherein an installation cavity is arranged in the connecting part, and a positioning groove matched with the positioning column is arranged at the bottom of the installation cavity; the locking device comprises a key hinged to the steering vertical pipe and a positioning piece arranged inside the positioning column; the bottom of the key can be clamped with the positioning piece when not stressed, a telescopic blocking piece is arranged in the positioning piece, and the blocking piece is used for limiting the upward movement of the positioning piece relative to the installation cavity when extending out; when the positioning column is separated from the positioning groove, the steering vertical pipe can rotate relative to the mounting cavity. The installation steps of the stand pipe can be simplified, the stand pipe is prevented from being separated in the rotating process, the operation experience of a user is promoted, and the stability of a vehicle body can be improved.

Description

Scooter

Technical Field

The invention relates to the technical field of scooters, in particular to a scooter.

Background

The scooter is a popular children toy, and children can exercise the flexibility of the body by frequently riding the scooter, so that the reaction speed is improved, the exercise amount is increased, the body resistance is enhanced, and the scooter is a fashionable exercise and leisure tool and is deeply loved by vast children. The three-wheeled scooter is a relatively common scooter, and when a child uses the three-wheeled scooter, one foot pedals at the front part of the scooter, and the other foot pedals the ground to slide forwards. The sliding direction can be easily changed by only slightly twisting the steering wheel of the handle vertical pipe left and right.

Along with quality of life's constantly improvement, children's scooter all has very high technical requirement on outward appearance and performance quality, in order to reach the purpose of conveniently carrying, the hand (hold) riser of slide board car on the market at present has vertical and two positions of falling, the design of hand (hold) riser bottom is in inserting the corresponding locating hole of vehicle bottom through the cylinder at 45 oblique angles, lean on two bellied square bone position location of vehicle bottom, prevent rocking of left and right directions, then hold the vehicle bottom by the knot of button bottom, prevent that the hand (hold) riser from deviating from the locating hole of vehicle bottom. When the bicycle is required to be carried, the button is pressed down, the handle vertical pipe is pulled out and then rotated by 180 degrees, then the handle vertical pipe is pushed to the bottom of the positioning hole of the bicycle bottom, the button is loosened, and the handle vertical pipe can be fixed above the bottom plate to reach the laying down position.

However, the existing scooter has the following defects:

(1) the handle vertical pipe is inserted into the vehicle bottom, and the handle vertical pipe can be pushed to the vehicle bottom only by aligning two notches on the vehicle bottom surface and rotating to a correct angle after insertion. The operation process is complicated and difficult to align;

(2) in the rotating process, when the two limited bone positions are aligned with the two notches of the vehicle bottom, the handle vertical pipe is easy to pull out;

(3) in addition, when the bicycle is steered, the swinging of the handle vertical pipe in the left and right directions is prevented from being mainly fixed by the positions of two small convex bones in the groove of the bottom of the bicycle, the strength is lack, and the stability of the bicycle body is not influenced;

(4) in addition, the handle vertical pipe is completely connected with the bottom plate by two thinner bone positions in the rotating process (except for the vertical position and the falling position), and the structure is easy to damage.

Therefore, how to improve the installation convenience and the operation experience of the handle riser and improve the stability of the vehicle body is an important technical problem to be solved by those skilled in the art.

Disclosure of Invention

The invention aims to provide a scooter, which can simplify the installation steps of a stand pipe, prevent the steering stand pipe from falling off in the rotation process, is beneficial to improving the operation experience of a user and can also improve the stability of a scooter body.

In order to achieve the above object, the present invention provides a scooter, comprising: the handlebar riser assembly is arranged on the frame assembly and can move between an unfolding position and a folding position, and the handlebar riser assembly further comprises a locking device capable of locking the handlebar riser assembly on the unfolding position and the folding position; the handle vertical pipe assembly comprises a steering vertical pipe and a positioning column arranged at the bottom of the steering vertical pipe; the frame assembly comprises a connecting part protruding upwards and a pedal platform connected to the connecting part, an installation cavity used for installing the bottom of the steering vertical pipe is arranged in the connecting part, and a positioning groove matched with the positioning column is arranged at the bottom of the installation cavity;

the locking device comprises a key hinged to the steering vertical pipe and a positioning piece arranged inside the positioning column; the bottom of the key can be clamped at the top of the positioning piece when no external force is applied to the bottom of the key, a telescopic blocking piece is arranged in the positioning piece, and the blocking piece can be used for limiting the upward movement of the positioning piece relative to the installation cavity when extending out; when the positioning column is separated from the positioning groove, the steering vertical pipe can rotate relative to the mounting cavity.

As a preferred scheme, the top of the mounting cavity is connected with an annular sheet;

the outer end part of the blocking piece is of a spherical structure; when the blocking piece extends out, the distance between the outer end part of the blocking piece and the axis of the positioning piece is larger than the radius of the annular piece.

Preferably, at least one group of blocking parts is arranged in the positioning part, and two blocking parts in one group are oppositely arranged in the positioning part; the inner side edge of the top of the annular piece is provided with a guide inclined plane for the outer end part of the blocking piece to slide.

As a preferred scheme, the bottom of the steering stand pipe is connected with a split ground pipe sleeve, and the positioning column is formed at the bottom of the pipe sleeve;

a first elastic piece is connected between the bottom of the positioning piece and the positioning column.

As a preferable scheme, a cylindrical part is further arranged between the main body part of the pipe sleeve and the positioning column, and the mounting cavity is provided with an annular cavity for the cylindrical part to rotate;

the first elastic part adopts a spring, the bottom of the positioning part is provided with a socket connection column for the first end of the first elastic part to be in socket connection, and the second end of the first elastic part is abutted against the inner face of the positioning column.

Preferably, a rotating boss is arranged at the top of the annular cavity, and a rotating space for rotating the outer end part of the blocking piece is formed between the rotating boss and the annular sheet.

Preferably, the positioning member is mounted in the cylindrical portion, a strip-shaped groove is formed in the cylindrical portion along the length direction of the cylindrical portion, and the outer end portion of the blocking member can extend out of the strip-shaped groove.

As a preferred scheme, a first clamping hook part is arranged at the bottom of the key, and a second clamping hook part which can be clamped with the first clamping hook part is arranged at the top of the positioning piece; a second elastic piece is connected between the first clamping hook part and the pipe sleeve; the first clamping hook part and the second clamping hook part are both provided with inclined planes.

Preferably, the connecting portion is provided with a clearance groove, and when the positioning column is installed in the positioning groove, the clearance groove and the blocking piece are arranged oppositely.

As a preferred scheme, the positioning column is of a square structure, and the positioning groove is also a square groove; the included angle formed between the axis of the mounting cavity and the plane where the extending direction of the pedal platform is located is 45 degrees.

Compared with the prior art, the invention has the beneficial effects that:

the scooter comprises a handle vertical pipe assembly, a frame assembly, a front wheel and a rear wheel, wherein the handle vertical pipe assembly is arranged on the frame assembly and can move between an unfolding position and a folding position, and the handle vertical pipe assembly is locked on the unfolding position and the folding position through a locking device; the locking device specifically comprises a key hinged on the steering vertical pipe and a positioning part arranged inside a positioning column, the bottom of the key can be clamped at the top of the positioning part when the key is not subjected to external force, a telescopic blocking part is arranged in the positioning part, when the handle vertical pipe component is installed in the installation cavity, the blocking part is contracted to enable the positioning part to smoothly enter the installation cavity, then the positioning column at the bottom of the steering vertical pipe is installed in a positioning groove at the bottom of the installation cavity, the blocking part is in an extending state when no external force exists and can be used for limiting the positioning part to move upwards relative to the installation cavity, and therefore, the positioning part is clamped with the positioning part when the key is not subjected to external force, and the blocking part limits the positioning part, so that the installation of the handle vertical pipe component and the frame component is realized, the handle vertical pipe component, accurate alignment is not needed, and through the matching of the positioning column and the integral structure of the positioning groove, the shaking and possible functional problems during steering in the use process can be effectively prevented;

when a user needs to fold the scooter, the user presses the key to separate the positioning piece from the key, the steering vertical pipe is pulled upwards along the length direction of the installation cavity, the bottom of the steering vertical pipe moves upwards relative to the positioning piece due to the limit of the blocking piece on the positioning piece, so that the positioning column is separated from the positioning groove, the steering vertical pipe can be rotated in the installation cavity at the moment, the handle vertical pipe assembly is rotated to the folding position, and in the rotating process of the steering vertical pipe, the blocking piece limits the positioning piece, the steering vertical pipe can be prevented from being separated, and the operation experience of the user is facilitated; then the steering vertical pipe moves towards the positioning groove, so that the positioning column is inserted into the positioning groove again, and the key is driven to move downwards, so that the key is clamped with the positioning piece again, and the folding position is locked.

Drawings

Fig. 1 is an exploded schematic view of a scooter according to an embodiment of the present invention;

FIG. 2 is a perspective view of a handlebar riser assembly provided in accordance with an embodiment of the present invention;

FIG. 3 is a schematic perspective view of a frame assembly provided by an embodiment of the present invention;

FIG. 4 is a cross-sectional view of the handlebar riser assembly and frame assembly of the present invention shown disconnected;

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a cross-sectional view of the handlebar riser assembly of the present invention in the deployed position and locked;

FIG. 7 is a side view of FIG. 6;

FIG. 8 is a cross-sectional view of the steering riser pulled up from the deployed position;

FIG. 9 is a side view of FIG. 8;

FIG. 10 is a side view of the steering standpipe after being rotated 180;

FIG. 11 is a side view of the handlebar riser assembly in a folded position and locked.

10, holding the riser component; 11. a steering stand pipe; 12. pipe sleeve; 121. a positioning column; 122. a cylindrical portion; 1221. a strip-shaped groove; 20. a frame assembly; 21. a connecting portion; 211. installing a cavity; 2111. an annular cavity; 2112. rotating the boss; 212. a positioning groove; 213. an empty avoiding groove; 22. a foot-operated platform; 30. a locking device; 31. pressing a key; 311. a first hook part; 312. a pin shaft; 32. a positioning member; 321. sleeving the column; 322. a second hook part; 33. a first elastic member; 34. a blocking member; 35. an annular sheet; 351. a guide slope; 36. a second elastic member; 37. a V-shaped spring; 40. a front wheel; 50. a rear wheel.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to the exploded view of fig. 1, the scooter of the present invention is schematically shown, which comprises a handlebar riser assembly 10, a frame assembly 20, and a front wheel 40 and a rear wheel 50 mounted on the frame assembly 20, wherein the handlebar riser assembly 10 is mounted on the frame assembly 20 and is movable between an unfolded position and a folded position, the handlebar riser assembly 10 is in a use state when in the unfolded position and in a folded state when adjusted to the folded position; the scooter further includes a locking device 30 capable of locking the handlebar riser assembly 10 in the deployed position and the folded position. As shown in fig. 2, the handlebar stem assembly 10 includes a steering stem 11 and a positioning pillar 121 disposed at the bottom of the steering stem 11; as shown in fig. 3, the frame assembly 20 includes a connecting portion 21 and a foot platform 22 connected to the connecting portion 21, the connecting portion 21 is disposed to protrude upward, a mounting cavity 211 is disposed in the connecting portion 21, the steering stem 11 is connected to the mounting cavity 211 for mounting the steering stem 11, and a positioning groove 212 is disposed at the bottom of the mounting cavity 211 and is matched with the positioning post 121; the locking device 30 comprises a key 31 hinged to the steering vertical pipe 11 and a positioning part 32 arranged inside the positioning column 121; importantly, the bottom of the key 31 can be clamped to the top of the positioning member 32 when no external force is applied to the bottom, a retractable blocking member 34 is arranged in the positioning member 32, and when the blocking member 34 is retracted, the bottom of the steering vertical pipe 11 can smoothly enter the installation cavity 211, so that the positioning column 121 is inserted into the positioning groove 212 to be compressed; the stop member 34 is used to limit the positioning member 32 from moving upward relative to the mounting cavity 211 when it is extended; furthermore, when the positioning post 121 is disengaged from the positioning groove 212, the steering stem 11 can rotate relative to the mounting cavity 211.

Based on the scooter with the technical characteristics, as shown in fig. 4 to 7, by arranging the retractable blocking piece 34 in the positioning piece 32, when the handlebar riser assembly 10 is installed in the installation cavity 211, the blocking piece 34 is retracted to enable the positioning piece 32 to smoothly enter the installation cavity 211, then the positioning post 121 at the bottom of the steering riser 11 is installed in the positioning groove 212 at the bottom of the installation cavity 211, and then the blocking piece 34 is in an extended state when no external force is applied, which can be used for limiting the positioning piece 32 to move upwards relative to the installation cavity 211, so that the handlebar riser assembly 10 and the frame assembly 20 are installed by matching the positioning post 121 and the positioning groove 212, clamping the button 31 with the positioning piece 32 when no external force is applied, and limiting the positioning piece 32 by the blocking piece 34, and the handlebar riser assembly 10 is locked at the unfolded position, the installation steps are simple and efficient, and precise alignment is, moreover, through the matching of the positioning column 121 and the positioning groove 212 in an integral structure, the shaking and possible functional problems in the steering process in the use process can be effectively prevented; when a user needs to fold the scooter, please refer to fig. 8 and 9, the user presses the key 31 to separate the positioning member 32 from the key 31, and at this time, pulls up the steering stem 11 upwards along the length direction of the mounting cavity 211, and the positioning member 34 limits the positioning member 32 to enable the bottom of the steering stem 11 to move upwards relative to the positioning member 32, so that the positioning post 121 is separated from the positioning groove 212, and at this time, the steering stem 11 can be rotated in the mounting cavity 211 to enable the handlebar stem assembly 10 to rotate to the folding position, and during the rotation of the steering stem 11, the positioning member 32 is limited by the positioning member 34, so that the steering stem 11 can be prevented from being pulled out, which is beneficial to the user operation experience; then, referring to fig. 10 and 11, the steering stem 11 is moved toward the positioning groove 212, so that the positioning post 121 is inserted into the positioning groove 212 again, and the push button 31 is driven to move downward, so that the push button 31 is clamped with the positioning member 32 again, and thus the folding position is locked.

In this embodiment, the angle formed between the axis of the mounting cavity 211 and the plane of the extending direction of the footrest platform 22 is 45 °, and the handlebar stem assembly 10 is rotated from the unfolded position to 180 ° and then to the folded position, and then the steering stem 11 is extended along the footrest platform 22 as shown in fig. 10 and 11. Preferably, as shown in fig. 2 and 3, the positioning post 121 is a square structure, and the positioning groove 212 is also a square groove, so that through the cooperation of the integral structure, the functional problems that the vehicle body shakes and may occur during steering in the use process can be effectively prevented, the stability of the vehicle body during use is improved, and accurate alignment is not required, so that the installation is convenient.

Specifically, referring to fig. 6, which is a cross-sectional view of the riser assembly when in the extended position and locked, a ring plate 35 is attached to the top of the mounting cavity 211; the outer end part of the blocking piece 34 is of a spherical structure; when the blocking member 34 is extended, the distance of its outer end from the axis of the positioning member 32 is greater than the radius of the annular piece 35, and thus, upon insertion of the handlebar riser assembly 10 into the mounting cavity 211, the outer end of the stop 34 contacts the inner edge of the annular tab 35, the stopping part 34 is contracted, so that the positioning post 121 is inserted into the positioning groove 212, the blocking member 34 is reset to be protruded after losing the external force, and since the ring-shaped piece 35 is installed on the installation cavity 211, so that the lower surface of the annular plate 35 forms a stop against the stopper 34, preventing the positioning member 32 from moving upward, furthermore, the bottom of the button 31 engages with the top of the positioning member 32, which makes the position between the steering stem 11 and the positioning member 32 relatively fixed, thereby locking the handlebar stem assembly 10 in the unfolded position. Preferably, the annular plate 35 may be a metal plate to improve the force-bearing performance.

Preferably, at least one set of the blocking members 34 is disposed in the positioning member 32, and two blocking members 34 in the set are disposed in the positioning member 32 relatively to the ground, in this embodiment, as shown in fig. 4 and fig. 6, the blocking members 34 are glass beads, cylindrical holes are disposed in the positioning member 32, the glass beads are mounted in the cylindrical holes, and two opposite glass beads can be pressed by the V-shaped spring 37, so as to achieve the telescopic function, and certainly, the two glass beads can be connected by other structures such as a tension spring and an elastic body, so long as the functions of the present invention can be achieved, which is not described herein again.

Further preferably, as shown in fig. 4, the inner edge of the top of the ring-shaped plate 35 is provided with a guiding inclined plane 351 for sliding the outer end of the blocking member 34, when the handle riser assembly 10 is inserted into the mounting cavity 211, the beads contact the inner edge of the ring-shaped plate 35 and are guided by the transition of the guiding inclined plane 351, so that the beads compress the V-shaped spring 37, thereby realizing the shrinkage between two opposite beads, smoothly passing through the ring-shaped plate 35, further improving the smooth degree of mounting and preventing the occurrence of jamming.

As a preferred embodiment, referring to fig. 1 and 3, in order to facilitate production and ensure performance, a pipe sleeve 12 of a separate structure is connected to the bottom of the steering stem 11, and the positioning post 121 is formed at the bottom of the pipe sleeve 12, so that the steering stem 11 can be made of steel, the pipe sleeve 12 is made of plastic, the pipe sleeve 12 is mounted at the bottom of the steering stem 11, and further, the positioning post 121 and the pipe sleeve 12 are integrally formed, so that vehicle body performance is ensured and production cost can be reduced.

On the basis of the above structure, referring to fig. 6 to 9, a first elastic member 33 is connected between the bottom of the positioning member 32 and the positioning post 121, so that when a user needs to fold the scooter, the key 31 is separated from the positioning member 32, the steering stem 11 is pulled upwards, the steering stem 11 moves upwards relative to the positioning member 32, the positioning post 121 is separated from the positioning groove 212, the first elastic member 33 is compressed, the steering stem 11 is rotated 180 degrees to reach the folded position, the positioning post 121 is aligned with the positioning groove 212, and then the hand is released, and the steering stem 11 is automatically pressed into the positioning groove 212 under the action of the first elastic member 33, so that the operation convenience during folding is realized.

Further preferably, as shown in fig. 1, 2 and 3, a cylindrical portion 122 is further disposed between the main body portion of the pipe sleeve 12 and the positioning column 121, and the mounting cavity 211 has an annular cavity 2111 for rotating the cylindrical portion 122, so as to facilitate the rotation of the steering stem 11.

In this embodiment, the first elastic element 33 is a spring, a socket post 321 for socket-connecting a first end of the first elastic element 33 is disposed at the bottom of the positioning element 32, and a second end of the first elastic element 33 abuts against an inner surface of the positioning post 121.

More specifically, as shown in fig. 2 and 4, a rotating boss 2112 is provided at the top of the annular cavity 2111, and a rotating space for the outer end of the blocking member 34 to rotate is formed between the rotating boss 2112 and the annular plate 35, so as to provide support for the blocking member 34, and the structure is reliable, thereby preventing a weak position of the steering riser 11 during rotation, and improving the service life of the structure.

Further, referring to fig. 1, fig. 3, fig. 4, fig. 6 and fig. 8, the positioning element 32 is installed in the cylindrical portion 122, a strip-shaped groove 1221 is formed in the cylindrical portion 122 along the length direction thereof, the outer end of the blocking element 34 can extend out of the strip-shaped groove 1221, and when the steering riser 11 is pulled up, the steering riser 11 can move upward relative to the positioning element 32, so that the positioning column 121 can be smoothly separated from the positioning groove 212, and preparation is made for rotating the steering riser 11.

As shown in fig. 5, in an embodiment, a first hook portion 311 is disposed at the bottom of the key 31, a second hook portion 322 capable of being clamped with the first hook portion 311 is disposed at the top of the positioning member 32, and the key 31 may be specifically hinged to the steering stem 11 through a pin 312; a second elastic element 36 is connected between the first hook part 311 and the pipe sleeve 12, so that after a hand is loosened from the key 31, the key 31 can be automatically reset, and the first hook part 311 is reset to a position where the first hook part 311 can be clamped with the second hook part 322. In order to facilitate releasing the hand, the first hook portion 311 and the second hook portion 322 are smoothly connected, and inclined planes are arranged on the first hook portion 311 and the second hook portion 322 for guiding.

Further preferably, in order to detach the mounted handlebar vertical pipe assembly 10 from the frame assembly 20, the connecting portion 21 is provided with a clearance groove 213, when the positioning column 121 is mounted in the positioning groove 212, the clearance groove 213 and the blocking member 34 are arranged oppositely, so that when the handlebar vertical pipe assembly needs to be detached, the beads are pushed inwards only by passing through the clearance groove 213 from the outside, the beads are retracted inwards, the limiting effect on the positioning member 32 is relieved, the steering vertical pipe 11 is smoothly separated from the mounting cavity 211, and the detachment work of the handlebar vertical pipe assembly 10 is completed.

In summary, in the scooter of the present invention, the positioning member 32 is provided with the retractable blocking member 34 for limiting the positioning member 32 to move upward relative to the mounting cavity 211, so that the handlebar riser assembly 10 and the frame assembly 20 are mounted by the cooperation of the positioning post 121 and the positioning groove 212, the push button 31 is clamped with the positioning member 32 when not subjected to an external force, and the blocking member 34 limits the positioning member 32, so that the handlebar riser assembly 10 is locked at the unfolded position, the mounting steps are simple and efficient, accurate alignment is not required, and the positioning post 121 and the positioning groove 212 are matched in an integral structure, thereby effectively preventing shaking and possible functional problems during steering in the use process; when a user needs to fold the scooter, the user presses the key 31 to separate the positioning piece 32 from the key 31, the steering vertical pipe 11 is pulled up along the length direction of the installation cavity 211, the bottom of the steering vertical pipe 11 moves upwards relative to the positioning piece 32 due to the limit of the blocking piece 34 to the positioning piece 32, so that the positioning column 121 is separated from the positioning groove 212, the steering vertical pipe 11 can be rotated in the installation cavity 211 at the moment, the handle vertical pipe assembly 10 is rotated to the folding position, and in the rotating process of the steering vertical pipe 11, the blocking piece 34 limits the positioning piece 32, so that the steering vertical pipe 11 can be prevented from being separated, and the operation experience of the user is facilitated; then, the steering stem 11 moves towards the positioning groove 212, so that the positioning post 121 is inserted into the positioning groove 212 again, and the key 31 is driven to move downwards, so that the key 31 and the positioning member 32 are clamped again, locking and folding are realized, and the folding operation is convenient.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A scooter, comprising: a handlebar riser assembly, a frame assembly, and front and rear wheels mounted on the frame assembly, the handlebar riser assembly mounted on the frame assembly and movable between an extended position and a folded position,

the locking device can lock the handlebar vertical tube component on the unfolding position and the folding position; the handle vertical pipe assembly comprises a steering vertical pipe and a positioning column arranged at the bottom of the steering vertical pipe; the frame assembly comprises a connecting part protruding upwards and a pedal platform connected to the connecting part, an installation cavity used for installing the bottom of the steering vertical pipe is arranged in the connecting part, and a positioning groove matched with the positioning column is arranged at the bottom of the installation cavity;

2. The scooter of claim 1, wherein a ring-shaped piece is connected to the top of the mounting cavity;

3. The scooter of claim 2, wherein at least one set of the blocking members is disposed in the positioning member, and two blocking members in a set are disposed in the positioning member with respect to ground; the inner side edge of the top of the annular piece is provided with a guide inclined plane for the outer end part of the blocking piece to slide.

4. The scooter of claim 2, wherein a separate ground socket is connected to the bottom of the steering stem, and the locating post is formed at the bottom of the socket;

5. The scooter of claim 4, wherein a cylindrical portion is further provided between the main body portion of the casing and the positioning post, and the mounting cavity has an annular cavity for the cylindrical portion to rotate;

6. The scooter of claim 5, wherein the top of the annular cavity is provided with a rotation boss, and a rotation space for rotating the outer end of the blocking member is formed between the rotation boss and the annular plate.

7. The scooter of claim 5, wherein the positioning member is mounted in the cylindrical portion, the cylindrical portion having a strip-shaped groove along a length thereof, an outer end of the blocking member being extendable from the strip-shaped groove.

8. The scooter of claim 4, wherein the bottom of the key is provided with a first hook, and the top of the positioning member is provided with a second hook capable of being clamped with the first hook; a second elastic piece is connected between the first clamping hook part and the pipe sleeve; the first clamping hook part and the second clamping hook part are both provided with inclined planes.

9. The scooter of claim 1, wherein the connecting portion has a clearance groove, and when the positioning post is mounted in the positioning groove, the clearance groove is disposed opposite to the blocking member.

10. The scooter of any one of claims 1 to 9, wherein the positioning column has a square structure, and the positioning groove is also a square groove; the included angle formed between the axis of the mounting cavity and the plane where the extending direction of the pedal platform is located is 45 degrees.