Portable folding scooter locking connecting rod mechanism and folding scooter structure

Abstract

The invention discloses a portable folding scooter locking connecting rod mechanism and a folding scooter structure, and relates to the technical field of folding electric motors.The portable folding scooter locking connecting rod mechanism comprises a front pedal, the front pedal is rotationally connected with a rear pedal, and a connecting rod mechanism is arranged at the joint of the front pedal and the rear pedal; the connecting rod mechanism comprises a connecting groove formed in the end of the rear pedal, a connecting base is arranged at the end, close to the connecting groove, of the front pedal and rotationally connected with a main connecting shaft, the two ends of the main connecting shaft are rotationally connected with main connecting rods, and the two ends of each main connecting rod are rotationally connected with a second connecting rod and a third connecting rod. The joint of the main connecting rod and the second connecting rod is rotationally connected with a lifting handle; according to the portable folding scooter locking connecting rod mechanism and the folding scooter structure, by arranging the connecting rod mechanism, when a pedal structure of a pedal electric vehicle is folded, the lifting handle is pulled upwards, folding is more convenient and labor-saving, the structure is simple, the cost is low, folding is operated through the lifting handle, and hands cannot be pinched, and clothes cannot be stained.

Description

Technical Field

[0001] The invention relates to the technical field of foldable electric vehicles, and in particular to a portable foldable scooter locking connecting rod mechanism and a foldable scooter structure. Background Art

[0002] In recent years, folding electric vehicles have gradually become a new choice for short-distance travel in cities due to their portability, environmental friendliness and increasingly improved endurance. Compared with traditional electric vehicles, folding electric vehicles have obvious advantages in size and weight, and can be conveniently placed at home, in the car or in the office, solving the problems of storage and carrying. The design of folding electric vehicles allows them to be folded when not in use, reducing the space occupied. They are particularly suitable for self-driving tours and other occasions. Multiple folding electric vehicles can be stacked and stored in the trunk to make full use of the space. They can not only meet the needs of urban commuters for short-distance travel, but also provide a convenient connection between public transportation. Although there are many designs of folding bicycles on the market, they still have shortcomings in folding mechanism, portability, safety and comfort. For example, some folding bicycles are still large in size after folding, which is inconvenient to carry.

[0003] A Chinese utility model patent with publication number CN211996010U discloses a foldable electric vehicle, which can fold the body, chassis, wheels and handles. The folded electric vehicle occupies less space and is easy to carry. At the same time, it is equipped with two batteries, and the battery life is stronger. A baffle is set on the chassis to prevent road water from splashing onto the chassis. The increased chassis width makes it easier to carry items.

[0004] However, when folding the folding electric vehicle, the folding pedals need to be forcefully pried apart by hand or foot at the connection between the front and rear pedals, and the pedals need to be folded up by hand or foot all the time. This makes it very easy to get your hands caught during folding, making it inconvenient to exert force, and the pedals are usually dirty, making it easy to stain your hands or clothes. Summary of the invention

[0005] The purpose of the present invention is to provide a portable folding scooter locking link mechanism and a folding scooter structure to solve the problems of easy pinching of hands, inconvenience in exerting force and uncleanness in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a locking link mechanism of a portable foldable scooter, comprising a front pedal, the front pedal is rotatably connected to the rear pedal, a link mechanism is provided at the connection between the front pedal and the rear pedal, and the top ends of the front pedal and the rear pedal are rotatably connected to a mounting seat; the link mechanism comprises a connecting groove opened at the end of the rear pedal, a connecting seat is provided at one end of the front pedal close to the connecting groove, the connecting seat is rotatably connected to a main connecting shaft, both ends of the main connecting shaft are fixedly connected to the rear pedal, both ends of the main connecting shaft are rotatably connected to a main connecting rod, both ends of the main connecting rod are rotatably connected to a second connecting rod and a third connecting rod, a positioning shaft is fixedly connected between the two main connecting rods, and a handle is also rotatably connected to the connection between the main connecting rod and the second connecting rod.

[0007] Furthermore, clamping mechanisms are installed at both ends of the front pedal and the rear pedal, and the clamping mechanism includes a fixed bevel gear fixedly connected to the main connecting shaft, a transmission shaft transmission-connected to the fixed bevel gear, both ends of the transmission shaft are fixedly connected to transmission bevel gears, and a plurality of brackets are rotatably connected to the surface of the transmission shaft.

[0008] Furthermore, the ends of the front pedal and the rear pedal away from the connection are rotatably connected to a vertical shaft, the vertical shaft is arranged on one side of the transmission shaft, a driven bevel gear is fixedly connected to the surface of the vertical shaft, and a control gear is also provided in the middle of the vertical shaft.

[0009] Furthermore, the ends of the front pedal and the rear pedal away from the connection are also provided with a clamping piece, and one end of the clamping piece is provided with a toothed plate.

[0010] Further, the fixed bevel gear is meshed with the transmission bevel gear, the transmission bevel gear at one end of the transmission shaft away from the fixed bevel gear is meshed with the driven bevel gear, and the control gear is meshed with the gear plate.

[0011] Furthermore, the clamping member includes two symmetrical clamps, which extend out of the top of the front pedal and the rear pedal. The top of the front pedal and the rear pedal are fixedly connected with clamps, and the clamps are respectively arranged on the upper surface and the lower surface of the clamps.

[0012] Furthermore, the clamp is also fitted with a tooth plate, and two tooth plates are also provided. The clamp and the tooth plate slide in cooperation with the clamp, and the two tooth plates are simultaneously engaged with the control gear from both sides of the control gear. The moving direction of the tooth plate is the same as the moving direction of the clamp, and the moving directions of the two tooth plates are opposite.

[0013] Compared with the prior art, the present invention provides a locking connecting rod mechanism for a portable foldable scooter. The present invention sets a connecting rod mechanism. When the pedal structure of the foldable electric scooter is folded, the handle is pulled upwards, one end of the rear pedal is lifted, and the front pedal is lifted accordingly. At this time, the front pedal rotates through the main connecting shaft of the connecting seat and the rear pedal. While rotating, the handle lifts the main connecting rod and the second connecting rod. The main connecting rod simultaneously drives the third connecting rod to be lifted. Since the mounting seats of the front pedal and the rear pedal are both rotatably connected to the pedals, and are also rotatably connected to the second connecting rod and the third connecting rod, after the handle is lifted, the connecting rod drives the pedals to fold, but the mounting seats can still maintain the original angle, so that the wheels of the electric vehicle remain in contact with the ground, and a positioning shaft is set between the main connecting rods. The positioning shaft can synchronize the activities between the two main connecting rods, stabilize the rotation process, make folding more convenient and labor-saving, have a simple structure, and are low in cost. The folding is performed by the handle without pinching hands or dirtying clothes.

[0014] The present invention also provides the following technical solution: a folding scooter structure, comprising: a front pedal and a rear pedal are rotatably connected at both ends with a mounting seat, the mounting seat is a "U"-shaped plate structure, the mounting seat is rotatably connected to the front pedal and the rear pedal, the second connecting rod and the third connecting rod are rotatably connected to the side wall of the mounting seat, and the mounting seat is fixedly installed with a mounting sleeve.

[0015] Furthermore, the mounting sleeve is fixedly mounted with a folding frame, and the two folding frames are respectively mounted with a front wheel and a rear wheel.

[0016] Furthermore, the folding frame is fixedly mounted with a lifting handlebar, a folding handle is fixedly mounted on the top of the lifting handlebar, a thread is provided on the surface of the folding handle, and a threaded sleeve is threadedly connected to the surface of the folding handle.

[0017] Compared with the prior art, the present invention provides a folding scooter structure, in which the height of the handlebar is adjusted by arranging a lifting handlebar on a mounting sleeve, and a lifting seat is arranged on another mounting sleeve, so as to jointly adjust the riding height of the electric vehicle, and the handlebar can be retracted when folded to reduce space occupation. At the same time, a foldable folding handle is arranged, and its fixation is controlled by adjusting the position of the threaded sleeve. After folding, the handle can be folded 90° to make it fit together, thereby further reducing space occupation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1A schematic diagram of the overall internal structure of a locking link mechanism of a portable foldable scooter provided in an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the internal structure of a locking link mechanism of a portable foldable scooter provided by an embodiment of the present invention from another perspective;

[0021] Figure 3 A schematic structural diagram of a clamping member of a locking link mechanism of a portable foldable scooter provided in an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the overall structure of a foldable scooter provided in an embodiment of the present invention;

[0023] Figure 5 Based Figure 4 A magnified image of point A;

[0024] Figure 6 This is a front view structural schematic diagram of a foldable scooter structure provided by an embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 1. Front pedal; 2. Rear pedal; 3. Connecting rod mechanism; 4. Clamping mechanism; 5. Mounting seat; 6. Mounting sleeve; 7. Folding frame; 8. Front wheel; 9. Lifting handlebar; 10. Folding handlebar; 11. Threaded sleeve; 12. Rear wheel; 13. Lifting seat;

[0027] 31. Connecting groove; 32. Connecting seat; 33. Main connecting shaft; 34. Main connecting rod; 35. Second connecting rod; 36. Third connecting rod; 37. Positioning shaft; 38. Connecting seat; 39. Protruding head;

[0028] 41. Fixed bevel gear; 42. Transmission shaft; 43. Transmission bevel gear; 44. Vertical shaft; 45. Bracket; 46. Driven bevel gear; 47. Control gear; 48. Clamping piece; 49. Tooth plate. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Embodiment 1:

[0031] See also Figure 1-Figure 3 A portable foldable scooter locking link mechanism comprises a front pedal 1, the front pedal 1 is rotatably connected to a rear pedal 2, a link mechanism 3 is provided at the connection between the front pedal 1 and the rear pedal 2, and the top ends of the front pedal 1 and the rear pedal 2 are both rotatably connected to a mounting seat 5.

[0032] The front pedal 1 and the rear pedal 2 are used to install the motor inside, the connecting rod mechanism 3 is arranged on the two side surfaces of the front pedal 1 and the rear pedal 2, the end of the front pedal 1 that contacts the rear pedal 2 is rotatably connected, the mounting seat 5 is arranged at the other end of the front pedal 1 and the rear pedal 2, and the end of the mounting seat 5 is sleeved on the pedal and is rotatably connected with the pedal.

[0033] The connecting rod mechanism 3 includes a connecting groove 31 opened at the end of the rear pedal 2, and a connecting seat 32 is provided at one end of the front pedal 1 close to the connecting groove 31. The connecting seat 32 is rotatably connected to a main connecting shaft 33. Both ends of the main connecting shaft 33 are fixedly connected to the rear pedal 2. Both ends of the main connecting shaft 33 are rotatably connected to main connecting rods 34. Both ends of the main connecting rod 34 are rotatably connected to a second connecting rod 35 and a third connecting rod 36. A positioning shaft 37 is fixedly connected between the two main connecting rods 34, and a handle is also rotatably connected to the connection between the main connecting rod 34 and the second connecting rod 35.

[0034] The connecting groove 31 is a rectangular groove, which is opened at the bottom edge of one end of the rear pedal 2 close to the front pedal 1. The connecting seat 32 of the front pedal 1 is adapted to the size of the connecting groove 31, and the top of the connecting seat 32 is circular. When folded, the connecting seat 32 rotates in the connecting groove 31, and the center of the connecting seat 32 coincides with the center point of the connecting groove 31. The axis of the main connecting shaft 33 also coincides with the center point. The inner wall of the main connecting rod 34 fits with the outer wall of the front pedal 1 and the rear pedal 2. The main connecting rod 34 is connected to each other through the main connecting shaft 33 and the positioning shaft 37. The rotation axis of the main connecting rod 34 is the main connecting shaft 33, and the positioning shaft 37 is used to synchronize the two main connecting rods 34, cooperates with the main connecting shaft 33 to fix and position the two main connecting rods 34, and can also stabilize the overall structure to prevent the connecting rod mechanisms 3 on both sides of the pedal from moving asynchronously. The two ends of the main connecting rod 34 are connected to the mounting seat 5 through the second connecting rod 35 and the third connecting rod 36. The rotating shaft at the connection between the second connecting rod 35 and the main connecting rod 34 is also rotatably connected to the handle, and the handle is used to lift the second connecting rod 35 and the main connecting rod 34. The connection between the main connecting rod 34 and the second connecting rod 35 and the third connecting rod 36 is not connected to the pedal. The lower end of the mounting seat 5 is rotatably connected to the pedal. When rotating, the two side plates of the mounting seat 5 can be sleeved on both sides of the pedal.

[0035] A snap-fit ​​seat 38 is also provided at the bottom of the rear pedal 2, and a raised boss 39 is also provided at the bottom of the front pedal 1. The snap-fit ​​seat 38 and the boss 39 are interference fit and their positions correspond. When folded, the boss 39 is inserted into the snap-fit ​​seat 38 to prevent the front pedal 1 and the rear pedal 2 from detaching, and extra force is required to separate the two.

[0036] Operation process: when folding, lift the handle upwards, and the handle will lift the connection between the main connecting rod 34 and the second connecting rod 35, so that the main connecting rod 34 and the second connecting rod 35 rotate and lift upwards. Since the connection axis of the main connecting rod 34, the second connecting rod 35 and the third connecting rod 36 forms a "concave" shape, the main connecting rod 34 will first pull the connection between the front pedal 1 and the rear pedal 2 upwards through the main connecting shaft 33 until the front pedal 1 and the rear pedal 2 are both vertically upwards. At this time, the second connecting rod 35 and the third connecting rod 36 are parallel to the pedals and also point upwards. At this time, the two mounting seats 5 change from being perpendicular to the pedals to being parallel to the pedals and fit on the upper surface of the pedals;

[0037] When it is necessary to unfold, first pull the electric vehicle forward or backward, unfold the front pedal 1 and the rear pedal 2 partially, and then press down from the connection between the front pedal 1 or the rear pedal 2 to reset the front pedal 1 and the rear pedal 2. During the resetting process of the front and rear pedals 2, each connecting rod and the mounting seat 5 are also reset respectively.

[0038] Embodiment 2:

[0039] See also Figure 1-Figure 3 This embodiment provides a technical solution based on the first embodiment: a clamping mechanism 4 is installed at both ends of the front pedal 1 and the rear pedal 2, and the clamping mechanism 4 includes a fixed bevel gear 41 fixedly connected to the main connecting shaft 33, and a transmission shaft 42 transmission-connected to the fixed bevel gear 41, and both ends of the transmission shaft 42 are fixedly connected to transmission bevel gears 43, and a plurality of brackets 45 are rotatably connected to the surface of the transmission shaft 42.

[0040] Two transmission shafts 42 are provided, which are respectively installed inside the front pedal 1 and the rear pedal 2. One end of the transmission shaft 42 is connected to the fixed bevel gear 41 of the connecting shaft through a transmission bevel gear 43. When the pedal is folded, the transmission bevel gear 43 rotates relative to the fixed bevel gear 41, thereby driving the transmission shaft 42 to rotate. The transmission shaft 42 is installed inside the pedal through various brackets 45, and the transmission shaft 42 rotates in coordination with the bracket 45.

[0041] The ends of the front pedal 1 and the rear pedal 2 away from the connection are both rotatably connected to a vertical shaft 44, which is arranged on one side of the transmission shaft 42, and a driven bevel gear 46 is fixedly connected to the surface of the vertical shaft 44, and a control gear 47 is also arranged in the middle of the vertical shaft 44.

[0042] The vertical shaft 44 is arranged at one end of the pedal away from the fixed bevel gear 41. The upper and lower ends of the vertical shaft 44 are rotatably connected to the pedal. A driven bevel gear 46 is provided near the lower end of the vertical shaft 44. The driven bevel gear 46 is connected to the transmission shaft 42 through the driven bevel gear 46. When the transmission shaft 42 rotates, the vertical shaft 44 rotates accordingly. The control gear 47 is arranged in the middle of the vertical shaft 44.

[0043] The ends of the front pedal 1 and the rear pedal 2 away from the connection are also provided with a clamping member 48, and one end of the clamping member 48 is provided with a tooth plate 49. The clamping member 48 includes two mutually symmetrical clamping hoops, which extend out of the top of the front pedal 1 and the rear pedal 2. The top of the front pedal 1 and the rear pedal 2 are fixedly connected with a clamping plate, which is respectively arranged on the upper surface and the lower surface of the clamping hoops, and a limit is provided on the clamping plate to limit the moving direction of the clamping hoops.

[0044] The clamp is used to clamp the frame of the electric vehicle to prevent the frame from shaking when riding, and to release the frame for folding when folding. The clamp clamps the clamp 48 in the middle, so that the clamp 48 can only move to both sides, playing a limiting role.

[0045] The fixed bevel gear 41 is meshed with the transmission bevel gear 43 , the transmission bevel gear 43 at one end of the transmission shaft 42 away from the fixed bevel gear 41 is meshed with the driven bevel gear 46 , and the control gear 47 is meshed with the gear plate 49 .

[0046] The splint also fits the tooth plate 49, and two tooth plates 49 are also provided. The clamp and the tooth plate 49 slide together with the splint. The moving direction of the tooth plate 49 is parallel to the moving direction of the clamp. The two tooth plates 49 engage with the control gear 47 from both sides of the control gear 47 at the same time. The moving direction of the tooth plate 49 is the same as the moving direction of the clamp, and the moving directions of the two tooth plates 49 are opposite.

[0047] Since both the front pedal 1 and the rear pedal 2 are provided with a clamping member 48, and the transmission shafts 42 in the front pedal 1 and the rear pedal 2 are driven by the fixed bevel gear 41, the installation positions of the toothed plates 49 and the control gear 47 of the two clamping members 48 are opposite to each other.

[0048] Operation process: When the pedal is folded, the fixed bevel gear 41 rotates relative to the transmission bevel gear 43, thereby driving the transmission shaft 42 to rotate. When the transmission shaft 42 rotates, the transmission bevel gear 43 at the other end of the transmission shaft 42 drives the vertical shaft 44 to rotate through the driven bevel gear 46. The rotation of the vertical shaft 44 drives the two toothed plates 49 to open the clamping member 48 outward through the control gear 47, thereby releasing the electric vehicle;

[0049] When the pedal is unfolded, the fixed bevel gear 41 rotates in the opposite direction relative to the transmission bevel gear 43. At this time, the transmission shaft 42 rotates in the opposite direction, driving the vertical shaft 44, the control gear 47, and the toothed plate 49 to move in the opposite direction in turn, thereby clamping the electric vehicle again when the pedal is fully unfolded to prevent the vehicle from shaking and rotating while riding.

[0050] Embodiment three:

[0051] See also Figure 4-Figure 6The present embodiment further provides a folding scooter structure: a mounting seat 5 is rotatably connected at both ends of the front pedal 1 and the rear pedal 2, the mounting seat 5 is a "U"-shaped plate structure, the mounting seat 5 is rotatably connected to the front pedal 1 and the rear pedal 2, a battery is arranged inside the front pedal 1 and the rear pedal 2, the second connecting rod 35 and the third connecting rod 36 are rotatably connected to the side wall of the mounting seat 5, the mounting seat 5 is fixedly installed with a mounting sleeve 6, the mounting sleeve 6 is rotatably connected to the pedal through the mounting seat 5, and the mounting sleeve 6 is used to install a folding frame 7.

[0052] The mounting sleeve 6 is fixedly mounted with a folding frame 7, and the two folding frames 7 are respectively mounted with a front wheel 8 and a rear wheel 12. A folding structure is provided at the connection between the folding frame 7 and the front wheel 8 and the rear wheel 12. The folding structure has a locking pin. This structure is a commonly used structure in the prior art and will not be described in detail here. When folding, the front wheel 8 and the rear wheel 12 can be folded on both sides of the pedal. A motor is provided at the rear wheel 12 to drive the rear wheel 12, and the motor is electrically connected to the battery in the pedal.

[0053] The folding frame 7 is fixedly installed with a lifting handlebar 9, and a folding handle 10 is fixedly installed on the top of the lifting handlebar 9. The surface of the folding handle 10 is provided with a thread, and the surface of the folding handle 10 is threadedly connected with a threaded sleeve 11. The lifting handlebar 9 is installed on the folding frame 7 connected to the front pedal 1, and the lifting seat 13 is installed on the folding frame 7 connected to the rear pedal 2.

[0054] Rotating structures are provided at both ends of the lifting handlebar 9, and the folding handle 10 can rotate around the lifting handlebar 9. Threads are provided on the surfaces of the folding handle 10 and the lifting handlebar 9. By rotating the threaded sleeve 11, the threaded sleeve 11 can cover the rotating position, so that the folding handle 10 is fixed in position for riding.

[0055] Working principle: When riding, the clamping member 48 holds the mounting sleeve 6 to fix the mounting sleeve 6, preventing the mounting sleeve 6 and the folding frame 7 from being driven to rotate by the mounting seat 5, thereby increasing stability. The lifting handlebar 9 and the lifting seat 13 are raised, and the threaded sleeve 11 is sleeved on the connection between the folding handle 10 and the lifting handlebar 9 to fix the folding handle 10 and the lifting handlebar 9. At this time, the folding handle 10 is coaxial with the lifting handlebar 9.

[0056] When folding, first fold up the front pedal 1 and the rear pedal 2. When folding, the clamping member 48 loosens the mounting sleeve 6. The mounting sleeve 6 can be rotated through the mounting seat 5 so that the mounting sleeve 6 is vertically upward. Then, the front wheel 8 and the rear wheel 12 are folded on both sides of the pedals, the lifting seat 13 and the lifting handlebar 9 are lowered, and the threaded sleeve 11 is rotated to expose the connection between the folding handle 10 and the lifting handlebar 9. At this time, the folding handle 10 can be rotated to be perpendicular to the lifting handlebar 9.

[0057] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A locking link mechanism for a portable folding scooter, comprising a front pedal (1), wherein the front pedal (1) is rotatably connected to a rear pedal (2), characterized in that: A connecting rod mechanism (3) is provided at the connection between the front pedal (1) and the rear pedal (2); the top ends of the front pedal (1) and the rear pedal (2) are both rotatably connected to a mounting seat (5); The connecting rod mechanism (3) comprises a connecting groove (31) provided at the end of the rear pedal (2); a connecting seat (32) is provided at one end of the front pedal (1) close to the connecting groove (31); the connecting seat (32) is rotatably connected to a main connecting shaft (33); both ends of the main connecting shaft (33) are fixedly connected to the rear pedal (2); both ends of the main connecting shaft (33) are rotatably connected to a main connecting rod (34); both ends of the main connecting rod (34) are rotatably connected to a second connecting rod (35) and a third connecting rod (36); a positioning shaft (37) is fixedly connected between the two main connecting rods (34); and a handle is rotatably connected to the connection between the main connecting rod (34) and the second connecting rod (35).

2. A portable folding scooter locking link mechanism according to claim 1, characterized in that: A clamping mechanism (4) is installed at both ends of the front pedal (1) and the rear pedal (2), and the clamping mechanism (4) comprises a fixed bevel gear (41) fixedly connected to the main connecting shaft (33), a transmission shaft (42) transmission-connected to the fixed bevel gear (41), both ends of the transmission shaft (42) are fixedly connected to the transmission bevel gear (43), and a plurality of brackets (45) are rotatably connected to the surface of the transmission shaft (42).

3. A locking link mechanism for a portable folding scooter according to claim 2, characterized in that: The ends of the front pedal (1) and the rear pedal (2) away from the connection are both rotatably connected to a vertical shaft (44), the vertical shaft (44) is arranged on one side of the transmission shaft (42), a driven bevel gear (46) is fixedly connected to the surface of the vertical shaft (44), and a control gear (47) is also arranged in the middle of the vertical shaft (44).

4. A locking link mechanism for a portable foldable scooter according to claim 3, characterized in that: The ends of the front pedal (1) and the rear pedal (2) away from the connection point are also provided with a clamping piece (48), and one end of the clamping piece (48) is provided with a toothed plate (49).

5. A locking link mechanism for a portable foldable scooter according to claim 4, characterized in that: The fixed bevel gear (41) is meshed with the transmission bevel gear (43), the transmission bevel gear (43) at one end of the transmission shaft (42) away from the fixed bevel gear (41) is meshed with the driven bevel gear (46), and the control gear (47) is meshed with the gear plate (49).

6. A portable foldable scooter locking link mechanism according to claim 5, characterized in that: The clamping member (48) comprises two symmetrical clamping hoops, the clamping hoops extending out of the top ends of the front pedal (1) and the rear pedal (2), the top ends of the front pedal (1) and the rear pedal (2) being fixedly connected with clamping plates, the clamping plates being respectively arranged on the upper surface and the lower surface of the clamping hoops.

7. A portable foldable scooter locking link mechanism according to claim 6, characterized in that: The clamping plate is also fitted with a tooth plate (49), and two tooth plates (49) are also provided. The clamping hoop and the tooth plate (49) are slidably matched with the clamping plate. The two tooth plates (49) are simultaneously meshed with the control gear (47) from both sides of the control gear (47). The moving direction of the tooth plate (49) is the same as the moving direction of the clamping hoop, and the moving directions of the two tooth plates (49) are opposite.

8. A folding scooter structure, comprising the portable folding scooter locking link mechanism according to any one of claims 1 to 7, characterized in that: The front pedal (1) and the rear pedal (2) are rotatably connected to a mounting seat (5) at both ends; the mounting seat (5) is a "U"-shaped plate structure; the mounting seat (5) is rotatably connected to the front pedal (1) and the rear pedal (2); the second connecting rod (35) and the third connecting rod (36) are rotatably connected to the side wall of the mounting seat (5); and the mounting seat (5) is fixedly mounted with a mounting sleeve (6).

9. A folding scooter structure according to claim 8, characterized in that: The mounting sleeve (6) is fixedly mounted with a folding frame (7), and the two folding frames (7) are respectively mounted with a front wheel (8) and a rear wheel (12).

10. A folding scooter structure according to claim 9, characterized in that: The folding frame (7) is fixedly mounted with a lifting handlebar (9), the top of which is fixedly mounted with a folding handlebar (10), the surface of which is provided with a thread, and the surface of which is threadedly connected with a threaded sleeve (11).

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