CN216401647U - Folding safety structure of scooter - Google Patents

Abstract

The utility model belongs to the technical field of scooters, in particular to a folding safety structure of a scooter. The foldable bicycle handlebar comprises a handlebar rod and a bicycle frame, wherein front wheels and rear wheels are respectively arranged on the handlebar rod and the bicycle frame, a connecting frame is arranged at the front end of the bicycle frame, a connecting rod connected with the connecting frame is arranged on the handlebar rod, the connecting rod is rotatably connected with the connecting frame, an unfolding limiting groove and a folding limiting groove are formed in the connecting frame, a limiting pin and an operating rod are arranged on the connecting rod, and the limiting pin is matched with the unfolding limiting groove and the folding limiting groove; the safety structure is arranged on the connecting rod and comprises a safety rod and a safety shifting piece capable of driving the safety rod to move, when the limiting pin is clamped in the expansion limiting groove, the front end of the safety rod can be abutted against the limiting pin or the operating rod, and therefore the limiting pin is limited to be separated from the expansion limiting groove. Thereby can avoid some potential safety hazards, easy operation, it is convenient, the security is high.

Description

Folding safety structure of scooter

Technical Field

The utility model belongs to the technical field of scooters, and relates to a scooter folding structure, in particular to a scooter folding safety structure.

Background

With the improvement of living standard, the scooter has become a more popular sports equipment. In the prior art, the main structure of the scooter, whether electrically powered or not, comprises a handle, a steering column, a frame and the like. In order to save space, a great variety of folding scooter has also appeared on the market to can fold when not using and accomodate, do not account for the space, but a lot of folding scooter have some potential safety hazards in the use, like touch beta structure by mistake on the way of going, thereby lead to the fact certain harm to riding passerby, consequently, need a novel structure now, scooter folding insurance structure of easy operation.

Disclosure of Invention

The utility model aims to provide a folding safety structure of a scooter, which has the advantages of simple structure, novel structure and easy operation.

The purpose of the utility model is realized as follows:

a folding safety structure of a scooter comprises a handlebar rod and a frame, wherein the handlebar rod and the frame are respectively provided with a front wheel and a rear wheel, the front end of the frame is provided with a connecting frame, the handlebar rod is provided with a connecting rod connected with the connecting frame, the connecting rod is rotationally connected with the connecting frame, the connecting frame is provided with an unfolding limiting groove and a folding limiting groove, the connecting rod is provided with a movable limiting pin and an operating rod for driving the limiting pin to move, and the limiting pin is matched with the unfolding limiting groove and the folding limiting groove; when the limiting pin is clamped in the unfolding limiting groove, the limiting pin limits the relative rotation of the connecting rod and the connecting frame, and the scooter is in an unfolding state; when the limiting pin is clamped in the folding limiting groove, the limiting pin limits the relative rotation of the connecting rod and the connecting frame, and the scooter is in a folding state;

the safety structure is arranged on the connecting rod and comprises a safety rod and a safety shifting piece capable of driving the safety rod to move, when the limiting pin is clamped in the expansion limiting groove, the front end of the safety rod can be abutted against the limiting pin or the operating rod, and therefore the limiting pin is limited to be separated from the expansion limiting groove.

The safety structure further comprises a mounting seat fixedly arranged in the connecting rod, one end of the safety rod is rotatably arranged on the mounting seat, the safety shifting piece is rotatably arranged on the mounting seat and is in contact with the safety rod, and the safety shifting piece can push the safety rod to rotate around one end of the safety rod by rotating the safety shifting piece, so that the front end of the safety rod is separated from the limit pin.

Furthermore, a downward-pressing torsion spring for driving the bumper to apply downward force is arranged at the joint of the bumper and the mounting seat.

The safety shifting piece further comprises a rotating part and a transmission part, wherein the rotating part is positioned outside the connecting rod, and the transmission part is arranged in the mounting seat and is in contact with the safety rod.

The utility model further discloses that a transmission part is formed on the transmission part, the transmission part is positioned on the side surface of the safety rod, the safety shifting piece is rotated, and the safety shifting piece overcomes the problem that the lower-pressing torsion spring drives the safety rod to move upwards through the transmission part.

The automatic safety structure comprises an automatic safety shifting piece formed on the transmission part, the automatic safety shifting piece is positioned outside a notch of the expansion limiting groove, and when the limiting pin is separated from the expansion limiting groove, the limiting pin can touch the automatic safety shifting piece so as to drive the safety shifting piece to rotate.

Further, the front end of the safety rod is arc-shaped and matched with the limiting pin.

Furthermore, the connecting rod is further provided with a movable limiting piece, the limiting pin is arranged on the limiting piece, one end of the operating rod is connected with or abutted against the limiting piece, and the operating rod is driven to push the limiting piece to move.

The utility model further discloses that rotating shaft holes are formed in the connecting rod and the connecting frame, a rotating shaft penetrates through the rotating shaft holes, a first waist-shaped hole is formed in the limiting piece, and the limiting piece is sleeved on the rotating shaft through the first waist-shaped hole and can move back and forth along the direction of the first waist-shaped hole.

Furthermore, the connecting rod is provided with a second waist-shaped hole, and the limiting pin penetrates through the connecting rod through the second waist-shaped hole and can move back and forth along the direction of the second waist-shaped hole. A spring cavity is formed in the limiting part, a return spring is arranged in the spring cavity, one end of the return spring is abutted to the rotating shaft, and the other end of the return spring is abutted to the inner portion of the spring cavity. The connecting rod is provided with a connecting shaft, the middle of the operating rod is provided with a rotating hole, and the operating rod is arranged on the connecting shaft through the rotating hole so as to rotate around the connecting shaft. The left side and the right side of the connecting rod are provided with rotating shaft frames, and two ends of the connecting shaft are erected on the rotating shaft frames on the two sides. The operating rod comprises a driving part at the upper end and a butting part at the lower end, a butting surface matched with the butting part is formed on the limiting part, and a handle is arranged on the driving part. The link includes left link and right link, erect respectively on left link and right link at the both ends of pivot, all seted up on left link and the right link and expanded spacing groove and folding spacing groove. The connecting frame is provided with an arc-shaped guide part, and the arc-shaped guide part is provided with the unfolding limiting groove and the folding limiting groove.

Compared with the prior art, the utility model has the outstanding and beneficial technical effects that:

according to the utility model, the connecting frame is arranged at the front end of the frame and is rotationally connected with the connecting rod on the handlebar rod, so that the switching of the rotating folding/unfolding state of the handlebar rod relative to the frame is realized; the connecting frame is provided with the unfolding limiting groove and the folding limiting groove, the connecting rod is provided with the movable limiting pin and the operating rod, and the operating rod drives the limiting pin to move so that the limiting pin is clamped in the unfolding limiting groove or the folding limiting groove, so that the fixing effect after different states are switched is achieved, and the positioning is firm; during the expansion state, the spacer pin card is in expanding the spacing inslot, the relative rotation of spacer pin restriction connecting rod and link realizes the location of expansion state, when switching fold condition, stir control rod drive spacer pin and break away from expanding the spacing inslot, remove the position restriction of connecting rod and link, it drives the connecting rod to rotate to the direction that is close to the frame to hold the handlebar stem, aim at the position at folding spacing inslot until the spacer pin, loosen the control rod this moment and make the spacer pin card in folding spacing inslot, the relative rotation of spacer pin restriction connecting rod and link realizes the location of fold condition, folding scooter small in size, it is convenient to accomodate the transportation. The safety structure is used for limiting the limit pin to be separated from the expansion limit groove, the safety structure comprises a safety rod capable of abutting against the limit pin or the operating rod, and the safety rod only abuts against the limit pin or the operating rod in the expansion state of the scooter, so that a rider is prevented from mistakenly touching the operating rod to open the folding state of the scooter in the riding process, and potential safety hazards can be avoided. Folding when accomodating in needs, only need manual rotation insurance plectrum, promote the bumper bar through the insurance plectrum, make the front end of bumper bar break away from spacer pin or control rod, at this moment, the scooter can normally fold. The operation is simple and convenient, and the safety is high.

Drawings

Fig. 1 is a perspective view of the scooter in a deployed state.

Fig. 2 is a perspective view of the scooter in an unfolded state (with the shell removed in the folded configuration).

Fig. 3 is a perspective view of the folded structure in an unfolded state.

Fig. 4 is a schematic view of the folded configuration with the tie bars removed.

Fig. 5 is a schematic view of the structure of fig. 4 with the left connecting frame point removed.

Fig. 6 is a schematic diagram of the safety structure of the present invention.

Fig. 7 is a schematic view of the safety structure of the present invention with the mounting base removed.

Fig. 8 is a perspective view of the scooter in a folded state.

Fig. 9 is a perspective view of the scooter in a folded state (the folding structure is taken out of the shell).

Fig. 10 is a perspective view of the folded structure in a folded state.

Fig. 11 is a schematic view of the connecting rod of fig. 10 with the connecting rod removed.

The reference numerals in the figures denote the meanings:

1-handlebar; 2-a frame; 3-front wheels; 4-rear wheel; 5-a connecting frame; 6-connecting rod;

7-unfolding a limit groove; 8-folding limiting grooves; 9-a limit pin; 10-a joystick; 11-a stop;

12-a rotating shaft hole; 13-a rotating shaft; 18-a connecting shaft; 24-a left link; 25-right connecting frame;

27-a safety lever; 28-safety shifting piece; 29-a mounting seat; 30-a rotating part; 31-a transmission part;

32-a transmission member; 33-automatic safety shifting piece.

Detailed Description

The utility model is further described below with reference to specific examples:

a folding safety structure of a scooter comprises a handlebar rod 1 and a frame 2, wherein the handlebar rod 1 and the frame 2 are respectively provided with a front wheel 3 and a rear wheel 4, the front end of the frame 2 is provided with a connecting frame 5, the handlebar rod 1 is provided with a connecting rod 6 connected with the connecting frame 5, the connecting rod 6 is rotatably connected with the connecting frame 5, the connecting frame 5 is provided with an unfolding limiting groove 7 and a folding limiting groove 8, the connecting rod 6 is provided with a movable limiting pin 9 and an operating rod 10 for driving the limiting pin 9 to move, and the limiting pin 9 is matched with the unfolding limiting groove 7 and the folding limiting groove 8; when the limit pin 9 is clamped in the expansion limit groove 7, the limit pin 9 limits the relative rotation of the connecting rod 6 and the connecting frame 5, and the scooter is in an expansion state; when the limit pin 9 is clamped in the folding limit groove 8, the limit pin 9 limits the relative rotation of the connecting rod 6 and the connecting frame 5, and the scooter is in a folding state;

the connecting rod 6 is provided with a safety structure, the safety structure comprises a safety rod 27 and a safety shifting piece 28 capable of driving the safety rod 27 to move, when the limiting pin 9 is clamped in the expansion limiting groove 7, the front end of the safety rod 27 can be abutted against the limiting pin 9 or the operating lever 10, and therefore the limiting pin 9 is limited to be separated from the expansion limiting groove 7.

According to the utility model, the connecting frame 5 is arranged at the front end of the frame 2, and the connecting frame 5 is rotationally connected with the connecting rod 6 on the handlebar 1, so that the switching of the rotational folding/unfolding state of the handlebar 1 relative to the frame 2 is realized; the connecting frame 5 is provided with the unfolding limiting groove 7 and the folding limiting groove 8, the connecting rod 6 is provided with the movable limiting pin 9 and the operating rod 10, and the operating rod 10 drives the limiting pin 9 to move so that the limiting pin 9 is clamped in the unfolding limiting groove 7 or the folding limiting groove 8, so that the fixing effect after different states are switched is achieved, and the positioning is firm; during the expansion state, spacer pin 9 blocks in expansion spacing groove 7, 9 restriction connecting rods of spacer pin 6 and 5 relative rotations realize the location of expansion state, when switching to fold condition, stir control rod 10 drive spacer pin 9 and break away from expansion spacing groove 7, remove the position restriction of connecting rod 6 and link 5, it drives connecting rod 6 and rotates to the direction that is close to frame 2 to hold handlebar stem 1, aim at the position at folding spacing groove 8 until spacer pin 9, loosen control rod 10 this moment and make spacer pin 9 block in folding spacing groove 8, the relative rotation of spacer pin 9 restriction connecting rod 6 and link 5 realizes the location of fold condition, folding scooter small in size, it is convenient to accomodate the transportation. And the utility model also has the insurance structure used for limiting the spacing pin 9 to break away from the expansion spacing groove 7, the insurance structure includes the safety lever 27 which can support the spacing pin 9 or the control lever 10, and the safety lever 27 can only support the spacing pin 9 or the control lever 10 in the expansion state of the scooter, thus preventing the rider from touching the control lever 10 by mistake and opening the folding state of the scooter in the riding process, thus avoiding some potential safety hazards. When needs are folded and are accomodate, only need manual rotation insurance plectrum 28, promote bumper 27 through insurance plectrum 28, make bumper 27's front end break away from spacer pin 9 or control rod 10, at this moment, the scooter can normally fold. The operation is simple and convenient, and the safety is high.

In a preferable scheme of the present invention, the safety structure further includes an installation seat 29 fixedly disposed in the connecting rod 6, one end of the safety rod 27 is rotatably disposed on the installation seat 29, the safety shifting piece 28 is rotatably disposed on the installation seat 29 and is in contact with the safety rod 27, and by rotating the safety shifting piece 28, the safety shifting piece 28 can push the safety rod 27 to rotate around one end thereof, so that the front end of the safety rod 27 is separated from the limit pin 9. The mounting seat 29 is a base for connecting the safety lever 27 and the safety shifting piece 28, when the safety lever 27 and the safety shifting piece 28 are mounted on the mounting seat 29, the safety shifting piece 28 is in contact with the safety lever 27, and when the safety shifting piece 28 rotates, the safety shifting piece 28 can drive the safety lever 27 to rotate around a hinge point of the safety lever 27.

In a preferred embodiment of the present invention, a downward-pressing torsion spring for driving the safety lever 27 to apply downward force is disposed at the connection between the safety lever 27 and the mounting seat 29. The safety rod 27 is driven to move downwards by the downward-pressing torsion spring, so that the safety rod 27 is always in a downward movement state or a downward movement trend state under the condition that the safety rod 27 is not subjected to other external force.

In a preferred embodiment of the present invention, the safety catch 28 includes a rotating portion 30 and a transmission portion 31, the rotating portion 30 is located outside the connecting rod 6, and the transmission portion 31 is disposed in the mounting seat 29 and contacts with the safety catch 27. The user can rotate the transmission part 31 by rotating the rotating part 30 arranged outside the connecting rod 6, and the transmission part 31 can rotate to push the safety rod 27 to move.

In a preferred embodiment of the present invention, a transmission member 32 is formed on the transmission portion 31, the transmission member 32 is located on a side surface of the safety lever 27, the safety lever 28 is rotated, and the safety lever 28 overcomes the downward-pressing torsion spring through the transmission member 32 to drive the safety lever 27 to move upward. When the safety shifting piece 28 rotates, the safety lever 27 needs to be pushed to move upwards by overcoming the downward pressure of the downward-pressing torsion spring, the safety lever 27 reaches a critical point when moving upwards to a certain position, at this time, the safety lever 27 cannot move downwards by the downward pressure of the downward-pressing torsion spring, the safety lever 27 needs to rotate to move over the critical point, and the safety lever 27 can move downwards by the downward pressure of the downward-pressing torsion spring.

In a preferable scheme of the present invention, the safety shifting piece 28 is further provided with an automatic safety structure, the automatic safety structure includes an automatic safety shifting piece 33 formed on the transmission portion 31, the automatic safety shifting piece 33 is located outside a notch of the expansion limiting groove 7, and when the limiting pin 9 is disengaged from the expansion limiting groove 7, the limiting pin 9 touches the automatic safety shifting piece 33, so as to drive the safety shifting piece 28 to rotate. The automatic safety structure can enable the scooter to be unfolded from a folding state to an unfolding state, the safety rod 27 can be automatically abutted against the limiting pin 9 through the mechanical structure, the safety shifting piece 28 does not need to be manually rotated after the scooter is unfolded for safety, the step of manually carrying out safety is saved, and the potential safety hazard caused by forgetting to carry out safety is avoided. The concrete structure has included the automatic insurance plectrum 33 of shaping on transmission 31, and the notch department that expandes spacing groove 7 will be located to automatic insurance plectrum 33, when spacer pin 9 breaks away from or gets into to expand the spacing inslot 7 from expandeing spacing groove 7, spacer pin 9 must contact and promote automatic insurance plectrum 33 with automatic insurance plectrum 33, automatic insurance plectrum 33 can drive insurance plectrum 28 when being promoted and rotate, thereby accomplish the function of automatic insurancy, simple structure, it is very convenient to use, can not forget insurancy.

In a preferred embodiment of the present invention, the front end of the safety lever 27 is an arc shape adapted to the limit pin 9.

In a preferable embodiment of the present invention, the connecting rod 6 is further provided with a movable limiting member 11, the limiting pin 9 is disposed on the limiting member 11, one end of the operating lever 10 is connected to or abutted against the limiting member 11, and the operating lever 10 is driven to push the limiting member 11 to move. The connecting rod 6 is an internal hollow tube, the lower end of the connecting rod 6 is provided with a movable limiting part 11, the limiting part 11 can be arranged in the hollow tube, and the operating rod 10 is exposed out of the connecting rod 6, so that the space is reasonably utilized. The upper end of locating part 11 is connected with spacer pin 9, the one end of control rod 10 is connected with locating part 11 or butt, can promote locating part 11 through drive control rod 10 and move at certain extent, and locating part 11 drives the spacer pin 9 that sets up on it and moves together, is equivalent to the indirect drive spacer pin 9 motion of control rod 10, simple structure, and the drive is stable.

According to a preferable scheme of the utility model, the connecting rod 6 and the connecting frame 5 are both provided with a rotating shaft hole 12, a rotating shaft 13 penetrates through the rotating shaft hole 12, the limiting piece 11 is provided with a first waist-shaped hole, and the limiting piece 11 is sleeved on the rotating shaft 13 through the first waist-shaped hole and can move back and forth along the direction of the first waist-shaped hole. Connecting rod 6 and link 5 wear to locate in pivot 13 through respective pivot hole 12, realize that relative rotation between them connects, as shown in the figure, seted up first waist shape hole on the locating part 11, locating part 11 also wears to establish in pivot 13 through first waist shape hole, and the length direction in waist shape hole is unanimous with the length direction of connecting rod 6. When the control rod 10 drives the limiting piece 11 to move, the limiting piece 11 can move in the range of the length of the first kidney-shaped hole relative to the rotating shaft 13.

According to a preferable scheme of the utility model, a second waist-shaped hole is formed in the connecting rod 6, and the limiting pin 9 penetrates through the connecting rod 6 through the second waist-shaped hole and can move back and forth along the direction of the second waist-shaped hole. The connecting rod 6 is provided with a second waist-shaped hole, the length direction of the waist-shaped hole is consistent with that of the connecting rod 6, the limiting pin 9 penetrates out of the second waist-shaped hole and can be clamped on the folding limiting groove 8 or the unfolding limiting groove 7, and when the control lever 10 drives the limiting part 11 to move, the limiting part 11 drives the limiting pin 9 to move within the length range of the second waist-shaped hole. The specific principle of the operating lever 10 driving the limit pin 9 to move is as follows: when the unfolding state is switched to the folding state, the control rod 10 drives the limiting piece 11 to move upwards along the direction of the first waist-shaped hole, the rotating shaft 13 is positioned at the lower end position of the first waist-shaped hole, the limiting piece 11 drives the limiting pin 9 arranged on the limiting piece to upwards link along the direction of the second waist-shaped hole, at the moment, the end part of the limiting pin 9 clamped in the unfolding limiting groove 7 is upwards separated from the groove, the limiting pin 9 is positioned at the upper end position of the second waist-shaped hole, the positioning limitation of the connecting rod 6 and the connecting frame 5 is removed, the handlebar stem 1 is held to drive the connecting rod 6 to rotate towards the direction close to the frame 2, the limiting pin 9 is kept at the upper end position of the second waist-shaped hole and cannot be contacted with the connecting frame 5 in the rotating process until the limiting pin 9 is aligned at the position of the folding limiting groove 8, at the moment, the limiting piece 11 is driven to move downwards along the direction of the first waist-shaped hole, and referring to the figure, the rotating shaft 13 is positioned at the upper end position of the first waist-shaped hole, the limiting part 11 drives the limiting pin 9 arranged on the limiting part to downwards link along the direction of the second waist-shaped hole, the limiting pin 9 is located at the lower end position of the second waist-shaped hole and clamped in the folding limiting groove 8, the principle of switching from the folding state to the unfolding state is the same, and the limiting part 11 and the limiting pin 9 are driven by the operating rod 10 to respectively move in the range of the first waist-shaped hole and the second waist-shaped hole, so that the limiting pin 9 is separated from or clamped in the limiting grooves in different states to achieve positioning.

A spring cavity is formed in the limiting part 11, a return spring is arranged in the spring cavity, one end of the return spring is abutted to the rotating shaft 13, and the other end of the return spring is abutted to the inner portion of the spring cavity. The utility model discloses a simple structure and simple and convenient reset mode.A reset spring is arranged in a spring cavity arranged in a limiting piece 11, the upper end of the reset spring is abutted against a rotating shaft 13, and the lower end of the reset spring is abutted against the bottom of the spring cavity and is used for pushing the limiting piece 11 to reset when a limiting pin 9 rotates and is aligned to a proper position, so that the limiting pin 9 is firmly clamped in an unfolding limiting groove 7 or a folding limiting groove 8. According to the principle that the operating lever 10 drives the limiting pin 9 to move, when the unfolding state is switched to the folding state, the operating lever 10 drives the limiting piece 11 to move upwards, the rotating shaft 13 is located at the lower end position of the first kidney-shaped hole, the return spring abutting against the lower portion of the rotating shaft 13 is in a compressed state, the limiting piece 11 drives the limiting pin 9 to move upwards to be separated from the unfolding limiting groove 7, the positioning limitation of the connecting rod 6 and the connecting frame 5 is removed, the handlebar stem 1 is held to drive the connecting rod 6 to rotate towards the direction close to the frame 2 until the limiting pin 9 is aligned with the position of the folding limiting groove 8, the operating lever 10 is released to remove the upward pushing force applied to the limiting piece 11, the return spring pushes the limiting piece 11 downwards under the action of the elastic potential energy of the return spring abutting against the rotating shaft 13, and the limiting piece 11 drives the limiting pin 9 to move downwards to be clamped in the folding limiting groove 8, the reset spring applies downward force to the limiting part 11 to ensure that the limiting pin 9 cannot be easily separated from the folding limiting groove 8, and the operating rod 10 is required to apply force to overcome the elastic force of the reset spring to switch states, so that the operation is simple and convenient, and the positioning stability is good.

The connecting rod 6 is provided with a connecting shaft 18, the middle of the operating rod 10 is provided with a rotating hole, and the operating rod 10 is arranged on the connecting shaft 18 through the rotating hole, so that the operating rod 10 can rotate around the connecting shaft 18. The left side and the right side of the connecting rod 6 are provided with rotating shaft frames, and two ends of the connecting shaft 18 are erected on the rotating shaft frames on the two sides. The left side and the right side of the connecting rod 6 are provided with rotating shaft frames, and two ends of the connecting shaft 18 are erected on the rotating shaft frames on the two sides. The pivot frame sets up in pairs, and the pivot frame passes through screw and connecting rod 6 fixed connection, and the pot head is established on pivot 13 under the pivot frame, and the pivot frame is put up the control rod 10 in the end, and the pivot frame can follow connecting rod 6 and revolute 13 synchronous rotations of axle. Preferably, the shaft bracket is provided with a preload piece, so that the shaft bracket and the connecting shaft 18 are more stably arranged on the connecting rod 6.

The operating rod 10 includes a driving portion at an upper end and an abutting portion at a lower end, an abutting surface adapted to the abutting portion is formed on the limiting member 11, and a grip is disposed on the driving portion.

The link 5 includes left link 24 and right link 25, erect respectively on left link 24 and right link 25 at the both ends of pivot 13, all seted up on left link 24 and the right link 25 and expanded spacing groove 7 and folding spacing groove 8. Be provided with arc guide part on link 5, seted up on the arc guide part expand spacing groove 7 and folding spacing groove 8.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims (10)

1. The utility model provides a scooter folding insurance structure, includes handlebar pole (1) and frame (2), is provided with front wheel (3) and rear wheel (4), its characterized in that on handlebar pole (1) and frame (2) respectively: the front end of the frame (2) is provided with a connecting frame (5), the handlebar (1) is provided with a connecting rod (6) connected with the connecting frame (5), the connecting rod (6) is rotatably connected with the connecting frame (5), the connecting frame (5) is provided with an unfolding limiting groove (7) and a folding limiting groove (8), the connecting rod (6) is provided with a movable limiting pin (9) and an operating rod (10) for driving the limiting pin (9) to move, and the limiting pin (9) is matched with the unfolding limiting groove (7) and the folding limiting groove (8); when the limiting pin (9) is clamped in the unfolding limiting groove (7), the limiting pin (9) limits the relative rotation of the connecting rod (6) and the connecting frame (5), and the scooter is in an unfolding state; when the limiting pin (9) is clamped in the folding limiting groove (8), the limiting pin (9) limits the relative rotation of the connecting rod (6) and the connecting frame (5), and the scooter is in a folding state;

be provided with insurance structure on connecting rod (6), insurance structure includes bumper (27) and can drive bumper (28) that bumper (27) removed, when spacer pin (9) block in expand spacing groove (7), the front end of bumper (27) can support on spacer pin (9) or control lever (10) to restriction spacer pin (9) break away from in expanding spacing groove (7).

2. The folding safety structure of scooter according to claim 1, wherein: the insurance structure is still including fixed mounting base (29) that set up in connecting rod (6), the one end of bumper bar (27) rotate set up in on mounting base (29), insurance plectrum (28) rotate set up on mounting base (29) and with bumper bar (27) contact, rotate insurance plectrum (28), insurance plectrum (28) can promote bumper bar (27) rotate around its one end, make the front end of bumper bar (27) break away from spacer pin (9).

3. The folding insurance structure of scooter of claim 2, characterized in that: and a downward-pressing torsion spring for driving the safety rod (27) to exert force downwards is arranged at the joint of the safety rod (27) and the mounting seat (29).

4. The folding insurance structure of scooter of claim 3, characterized in that: the safety shifting piece (28) comprises a rotating part (30) and a transmission part (31), the rotating part (30) is located outside the connecting rod (6), and the transmission part (31) is arranged in the mounting seat (29) and is in contact with the safety rod (27).

5. The folding insurance structure of scooter of claim 4, wherein: the shaping has driving medium (32) on transmission portion (31), and driving medium (32) are located bumper (27) side, rotate insurance plectrum (28), and insurance plectrum (28) overcome through driving medium (32) and push down the torsional spring and drive bumper (27) rebound.

6. The folding insurance structure of scooter of claim 5, characterized in that: still be provided with the automatic insurance structure on insurance plectrum (28), the automatic insurance structure is including automatic insurance plectrum (33) of shaping on transmission portion (31), automatic insurance plectrum (33) are located outside the notch that expandes spacing groove (7), when spacer pin (9) break away from in expanding spacing groove (7), spacer pin (9) can touch automatic insurance plectrum (33) to drive insurance plectrum (28) rotate.

7. The folding safety structure of scooter according to any one of claims 1-6, wherein: the front end of the safety rod (27) is arc-shaped and matched with the limiting pin (9).

8. The folding safety structure of scooter as claimed in claim 7, wherein: still be provided with mobilizable locating part (11) on connecting rod (6), spacer pin (9) set up in on locating part (11), the one end of control rod (10) with locating part (11) are connected or the butt, through the drive control rod (10) can promote locating part (11) remove.

9. The folding safety structure of scooter according to claim 8, wherein: all seted up pivot hole (12) on connecting rod (6) and link (5), wear to be equipped with pivot (13) in pivot hole (12), first waist shape hole has been seted up on locating part (11), locating part (11) are established on pivot (13) and can be followed first waist shape hole direction back-and-forth movement through first waist shape hole cover.

10. The folding safety structure of scooter according to claim 9, wherein: a second waist-shaped hole is formed in the connecting rod (6), and the limiting pin (9) penetrates through the connecting rod (6) through the second waist-shaped hole and can move back and forth along the direction of the second waist-shaped hole; a spring cavity is formed in the limiting piece (11), a return spring is arranged in the spring cavity, one end of the return spring is abutted against the rotating shaft (13), and the other end of the return spring is abutted against the inside of the spring cavity; a connecting shaft (18) is arranged on the connecting rod (6), a rotating hole is formed in the middle of the operating lever (10), and the operating lever (10) is arranged on the connecting shaft (18) through the rotating hole, so that the operating lever (10) can rotate around the connecting shaft (18); the left side and the right side of the connecting rod (6) are provided with rotating shaft frames, and two ends of the connecting shaft (18) are erected on the rotating shaft frames at the two sides; the operating rod (10) comprises a driving part at the upper end and an abutting part at the lower end, an abutting surface matched with the abutting part is formed on the limiting part (11), and a handle is arranged on the driving part; the connecting frame (5) comprises a left connecting frame (24) and a right connecting frame (25), two ends of the rotating shaft (13) are erected on the left connecting frame (24) and the right connecting frame (25) respectively, and the left connecting frame (24) and the right connecting frame (25) are provided with an expansion limiting groove (7) and a folding limiting groove (8); an arc-shaped guide part is arranged on the connecting frame (5), and the expansion limiting groove (7) and the folding limiting groove (8) are formed in the arc-shaped guide part.

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