Folding scooter

Abstract

The present invention relates to a folding scooter, comprising a front frame, wherein a connecting portion is provided on either side of the front frame; a support rod capable of turning over towards the front frame is connected to the top end of the connecting portion; a seat plate rotationally connected to the support rods is provided at a position, corresponding to the position above the front frame, between the two support rods; a transmission rod is provided inside the support rod, one end of the transmission rod is rotationally connected to the connecting portion, and the other end of the transmission rod is rotationally connected to the seat plate and can be folded along with the upward turnover of the seat plate; and a handlebar is provided at the middle of the front side of the front frame, the handlebar is rotationally connected to the front frame and can be locked thereto, and when the support rods and the handlebar are folded, the seat plate and the support rods are located below the handlebar. The present invention has the characteristics of being simple in terms of structure and convenient to operate, reducing the dead weight of a scooter body, effectively improving the portability of the scooter, reducing the energy consumption, making the scooter more convenient to carry, increasing the range of the scooter, reducing the production cost, etc.

Description

Folding scooter Technical Field

[0001] The invention relates to a foldable scooter, belonging to the technical field of scooters. Background Art

[0002] A mobility scooter is a means of transportation and auxiliary tool for the purpose of transportation. It has been widely used in modern society. Existing mobility scooters are small in size and have low power. They are safer and more convenient to use and have low usage requirements. In order to facilitate storage and reduce space, current mobility scooters usually have a certain folding function.

[0003] A Chinese patent application with publication number CN116767407A discloses a folding scooter, comprising a frame unit, a drive unit and a steering unit; the frame unit comprises a front frame, a rear frame, a support frame and a locking mechanism, wherein the two sides of the rear end of the front frame are hingedly connected to first hinge points located on the two inner sides of the front end of the rear frame, and the support frame is located above the front frame; the locking mechanism comprises an unfolding lock guard plate and a folding lock guard plate, which are rotatably located on the inner side of the rear end of the support frame and arranged in parallel front and back.

[0004] The design of the folding mechanism of the folding electric scooter is too complicated and too troublesome to operate, causing certain inconvenience to the user. In addition, the folding part of the seat mostly adopts a parallelogram linkage mechanism or a cross-type folding mechanism, so two support rods are required on each side of the seat to complete the folding, which not only increases the production cost, but also increases the weight of the vehicle. Technical issues

[0005] The present invention aims to provide a foldable scooter that solves the problems of the prior art, such as overly complex design, inconvenient operation, increased weight and increased energy consumption. Technical Solutions

[0006] The above technical objectives of the present invention are mainly solved through the following technical solutions: a foldable scooter, comprising a front frame, both sides of the front frame are provided with connecting parts that are mirror-set and bent toward the upper rear side of the front frame, the top of the connecting part is connected to a support rod that can be flipped toward the front frame, and a seat plate rotatably connected to the support rod is provided between the two support rods corresponding to the upper part of the front frame, a transmission rod is provided inside the support rod, one end of the transmission rod is rotatably connected to the connecting part, and the other end of the transmission rod is rotatably connected to the seat plate and can be folded as the seat plate is flipped upward, a handle rod is provided vertically in the middle of the front side of the front frame and circumferentially connected to the front frame, the handle rod is rotatably connected to the front frame and can be locked, and when the support rod and the handle rod are folded, the seat plate and the support rod The rod is located below the handlebar rod; the above-mentioned support rod can drive the seat to flip toward the front frame at the connection part of the front frame to realize the folding of the seat as a whole. At the same time, the transmission rod rotates synchronously with the flipping of the seat plate, and the support rod rotates synchronously with the transmission rod, so that the support rod, transmission rod and seat plate rotate synchronously close to the front frame to realize folding, and the handlebar rod can then fold and be located above the seat plate and the support rod to realize the overall folding of the mobility scooter. At the same time, the folding of the handlebar rod above the seat plate and the support rod can avoid the internal circuits and circuit boards of the handlebar rod from being squeezed and causing circuit damage. The above-mentioned mobility scooter has a simple structure and is easy to operate, reduces the weight of the mobility scooter body, effectively improves the portability of the mobility scooter, reduces energy consumption, makes the transportation of the mobility scooter more convenient, increases the endurance of the mobility scooter, and reduces production costs.

[0007] The cam is secured to the bottom of the second support rod and is adapted to engage the first and second support rods for engagement with the first and second support rods, respectively, to allow the cam to engage with the first and second support rods for engagement with the first and second support rods.

[0008] Preferably, one end of the transmission rod connected to the seat plate is rotatably connected to the seat plate through a connecting piece, and the connecting piece is provided with an extension portion bent toward the seat plate, the inner side of the extension portion is provided with a boss extending toward the seat plate, and the seat plate is provided with a groove matching the boss; the arrangement of the connecting piece and the extension portion on the above-mentioned transmission rod increases the barrier between the seat plate and the support rod when the seat plate is in a horizontal state for the user to sit on, thereby protecting the seat and the support rod and reducing wear, and the matching arrangement of the boss and the groove enhances the stability between the seat plate and the support rod, and prevents the seat plate from shaking.

[0009] Preferably, an arc-shaped guide groove is provided on the inner side of the support rod, the center of the arc-shaped guide groove is consistent with the rotation center of the seat plate, and the connecting piece is located in the arc-shaped guide groove and can move along the arc-shaped trajectory of the arc-shaped guide groove; the setting of the above-mentioned arc-shaped guide groove can guide and limit the movement of the connecting piece when the seat plate rotates, so that the seat plate and the support rod can be stably rotated through the transmission of the transmission rod, ensuring that the seat plate and the support rod are smooth and stable when folded.

[0010] Preferably, both sides of the bottom of the seat plate are provided with positioning parts for the movable pin to pass through, and a guide groove is provided in the positioning part along the axial direction of the movable pin, and the outer end of the movable pin is provided with a convex part abutting the inner wall of the guide groove, and a telescopic spring is provided in the guide groove corresponding to the circumferential side of the movable pin; the above-mentioned positioning part and guide groove are provided to facilitate guiding and limiting the axial movement of the movable pin, ensure the stability of the movable pin during axial movement, and avoid radial displacement of the movable pin under force, and the provision of the convex part and the telescopic spring enables the movable pin to automatically extend outward through the action of the telescopic spring, and enter the first positioning hole or the second positioning hole through the convex part to achieve connection.

[0011] Preferably, a push plate that can move along the front and rear directions of the seat plate is provided between the two positioning parts, and a driving block for driving the movable pin to move axially is provided on both sides of the push plate, and a limit cover connected to the seat plate is provided on the drive block, and a limit groove for the movement of the drive block is provided between the limit cover and the seat plate; the above-mentioned push plate is arranged so that the push plate can be driven to move when folding is required, and the push plate can drive the movable pin to leave the first positioning hole or the second positioning hole through the drive block, so as to fold the seat or cancel the folding state. The arrangement of the above-mentioned limit cover and limit groove can protect the components on the drive block, and limit the moving distance and direction of the push plate through the limit groove to ensure the stability of the push plate during movement.

[0012] Preferably, a protrusion is provided on the outer side of the driving block, and a return spring is provided on the protrusion along the moving direction of the push plate, and the end of the return spring is connected to the protrusion provided at the bottom of the seat plate; the above-mentioned protrusion is provided to cooperate with the protrusion to fix the return spring, so that the push plate can automatically reset after moving, so as to facilitate subsequent operations, realize the continuity of the push plate movement, and thus realize the repeatability of the seat folding function.

[0013] Preferably, an oblique groove inclined toward the inner end of the movable pin is provided on the end face of the driving block, and a roller extending into the oblique groove and abutting against the side wall of the oblique groove is provided at the inner end of the movable pin, and a limiting portion abutting against the side wall of the movable pin is provided inside the limiting cover; the above-mentioned oblique groove is set so that the movement of the push plate can drive the roller at the inner end of the movable pin to move along the oblique groove through the oblique groove of the driving block, thereby driving the outer ends of the two movable pins to move axially synchronously under the limit of the limiting portion and the positioning portion, ensuring the stability of the movable pin during movement and realizing synchronous control of the flipping of both sides of the seat plate.

[0014] Preferably, a bottom column extending upward is provided in the middle part of the front side of the front frame, and a base is provided at the bottom of the faucet rod which is circumferentially connected to the bottom column. A gas rod is provided inside the faucet rod which can control the faucet rod to rotate toward the rear side of the front frame relative to the base. A switch is provided in the middle part of the faucet rod which extends to the inside of the faucet rod and contacts the movable end of the top of the gas rod and can rotate up and down, and the bottom fixed end of the gas rod is rotatably connected to the middle part of the base. The above-mentioned faucet rod can be axially rotated relative to the bottom column through the base to facilitate the steering function of the vehicle, and the setting of the gas rod can control the rotation and folding of the faucet rod through the switch, making the rotation and folding of the faucet rod easier and more labor-saving, and the state of the faucet rod can be locked by the switch.

[0015] Preferably, the switch includes a driving part in contact with the valve at the top of the gas rod and a pressing part located outside the handlebar rod and arranged toward the rear side of the front frame. A positioning part is provided on the peripheral side of the top of the gas rod, and the top of the positioning part extends to the side of the driving part and is provided with a limiting column located above the driving part; the above-mentioned driving part can be flipped up and down by the pressing part, so as to control the extension and retraction of the gas rod through contact with the valve of the gas rod, thereby assisting the handlebar rod to automatically fold or restore an upright state, making the folding of the handlebar rod more convenient and labor-saving, and the positioning part fixes the radial position of the gas rod to prevent the gas rod from shaking, and the limiting column can limit the flipping angle of the pressing part, thereby limiting the extension range of the gas rod to ensure that the gas rod can automatically stop extending after the handlebar rod is folded. Beneficial effects

[0016] Therefore, the present invention has the characteristics of simple structure, easy operation, reduced body weight of the mobility scooter, effectively improved portability of the mobility scooter, reduced energy consumption, making the transportation of the mobility scooter more convenient, increased the endurance of the mobility scooter, and reduced production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic structural diagram of the present invention in an unfolded state.

[0018] FIG2 is a schematic structural diagram of the present invention in a folded state.

[0019] FIG3 is a schematic structural diagram of the seat plate and the support rod in FIG1 when they are separated.

[0020] FIG4 is a partial structural cross-sectional view of the support rod in FIG3 .

[0021] FIG5 is a schematic structural diagram of the seat plate in FIG1 .

[0022] FIG6 is a partial structural cross-sectional view of the seat plate in FIG5.

[0023] FIG7 is a structural cross-sectional view of the tap rod in FIG1 . Best Mode for Carrying Out the Invention

[0024] The technical solution of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0025] As shown in Figure 1-2, a folding scooter includes a front frame 1, and both sides of the front frame 1 are provided with connecting parts 11 that are mirror-set and bent toward the upper rear side of the front frame 1. The top of the connecting part 11 is connected to a support rod 2 that can be flipped toward the front frame 1. Between the two support rods 2, corresponding to the top of the front frame 1, a seat plate 3 rotatably connected to the support rod 2 is provided. A transmission rod 22 is provided inside the support rod 2, one end of the transmission rod 2 is rotatably connected to the connecting part 11, and the other end of the transmission rod 2 is rotatably connected to the seat plate 3 and can be folded as the seat plate 3 is flipped upward. A vertically arranged handle rod 4 is provided in the middle of the front side of the front frame 1 and circumferentially connected to the front frame 1. The handle rod 4 is rotatably connected to the front frame 1 and can be locked. When the support rod 2 and the handle rod 4 are folded, the seat plate 3 and the support rod 2 are located below the handle rod 4.

[0026] The above-mentioned front frame, support rods and seat plate are all made of carbon fiber material, which not only ensures hardness but also makes the vehicle body lighter. The connecting part of the front frame extends to the rear side of the vehicle body and bends upward to connect the support rod. The support rod extends upward until it is connected to the seat back. The seat plate is connected to the middle section of the support rod and cooperates with the seat back to facilitate the user to sit. The seat plate is set towards the front frame on the front side of the vehicle body. During normal use, the seat plate is in a horizontal state relative to the front frame, and the support rod and the transmission rod are kept upright. When folding is required, the seat plate is flipped over and can be flipped and folded toward the front frame together with the transmission rod and the support rod. Then the handlebar rod is unlocked and the handlebar rod is folded above the support rod and the seat plate, thereby completing the folding of the mobility scooter.

[0027] The cam 221 is provided with a first positioning hole 21 for inserting the movable pin 31 , and the second positioning hole 241 is provided on the side of the support rod 2 close to the side of the support rod 3 .

[0028] When the seat plate is in a horizontal state, the side of the seat plate abuts against the protrusion on the side wall of the support rod, so that the seat plate remains in a horizontal state, and the movable pin is located in the first positioning hole, and a connecting piece is provided between the seat plate and the protrusion of the support rod, and the extension part of the connecting piece is located between the protrusion of the support rod and the side of the seat plate, reducing wear caused by direct contact between the seat and the support rod, and the connecting piece and the extension are both made of plastic. The connecting piece is fixed to the transmission rod, and the side of the seat plate, the connecting piece and the transmission rod are always rotatably connected. When the side of the seat plate is flipped upward, the movable pins on both sides of the seat plate leave the first positioning hole. During the rotation of the seat plate, the side of the seat plate drives the end of the transmission rod to move in the arc guide groove through the connecting piece. Until it moves to the other end of the arc guide groove, the movable pin is locked in the second positioning hole, and the support rod and the transmission rod complete the flipping and folding, and the seat plate flips upward to complete folding.

[0029] As shown in Figures 5-6, both sides of the bottom of the seat plate 3 are provided with positioning parts 33 for the movable pin 31 to pass through, and a guide groove 331 is provided in the positioning part 33 along the axial direction of the movable pin 31. The outer end of the movable pin 31 is provided with a convex part 311 that abuts against the inner wall of the guide groove 331, and a telescopic spring 332 is provided in the guide groove 331 corresponding to the peripheral side of the movable pin 31. A push plate 34 that can move along the front and rear direction of the seat plate 3 is provided between the two positioning parts 33, and a driving block 35 for driving the movable pin 31 to move axially is provided on both sides of the push plate 34. A limit cover 33 connected to the seat plate 3 is provided on the driving block 35. 6. A limiting groove 361 for movement of the driving block 35 is provided between the limiting cover 36 and the seat plate 3. A protrusion 351 is provided on the outer side of the driving block 35. A return spring 352 is provided on the protrusion 351 along the moving direction of the push plate 34. The end of the return spring 352 is connected to the protrusion 37 provided at the bottom of the seat plate 3. An oblique groove 353 inclined toward the inner end of the movable pin 31 is provided on the end face of the driving block 35. A roller 312 extending into the oblique groove 353 and abutting against the side wall of the oblique groove 353 is provided at the inner end of the movable pin 31. A limiting portion 362 abutting against the side wall of the movable pin 31 is provided inside the limiting cover 36.

[0030] The above-mentioned movable pin passes through the positioning part and extends into the limiting cover, and the convex part of the outer end of the movable pin can extend into the first positioning hole or the second positioning hole. The inner end of the movable pin is located in the limiting part of the limiting cover and is connected to the roller and is located in the oblique groove, and the roller abuts against the side wall of the oblique groove; when the outer end of the movable pin is located in the first positioning hole or the second positioning hole, the inner end of the movable pin is located at the opening of the oblique groove, and the telescopic spring acts to push the convex part of the movable pin so that the outer end of the movable pin is located in the first positioning hole or the second positioning hole, and the reset spring is in a relaxed state.

[0031] When it is necessary to control the movable pin to leave the first positioning hole or the second positioning hole, the push plate is pulled, and the push plate moves along the limit groove on the limit cover, pushing the driving block to move synchronously, and the return spring begins to continuously contract. When the driving block moves, it drives the roller at the inner end of the movable pin to move through the oblique groove, so that the inner section of the movable pin moves along the oblique groove, and the movable pin is limited by the guide groove and the limit part and moves axially toward the push plate. At this time, the telescopic spring contracts, and the convex part of the outer end of the movable pin moves into the guide groove, so that the movable pin leaves the first positioning hole or the second positioning hole. After adjusting the seat state, the push plate is released, and the push plate is returned to its original position by the return spring. At the same time, the convex part of the movable pin moves along the oblique groove toward the outside of the guide groove by the telescopic spring until it enters the first positioning hole and the second positioning hole.

[0032] As shown in Figure 7, a bottom column 12 extending upward is provided in the middle of the front side of the front frame 1, and a base 41 is provided at the bottom of the tap rod 4, which is rotatably connected to the bottom column 12. A gas rod 42 is provided inside the tap rod 4, which can control the tap rod 4 to rotate toward the rear side of the front frame 1 relative to the base 41. A switch 43 is provided in the middle of the tap rod 4, which extends to the inside of the tap rod 4 and contacts the movable end of the top of the gas rod 42 and can rotate up and down. The bottom fixed end of the gas rod 42 is rotatably connected to the middle of the base 41. The switch 43 includes a driving part 431 that contacts the valve at the top of the gas rod 42 and a pressing part 432 located outside the tap rod 4 and arranged toward the rear side of the front frame 1. A positioning part 44 is provided on the circumferential side of the top of the gas rod 42. The top of the positioning part 44 extends to the side of the driving part 431 and is provided with a limiting column 441 above the driving part 431.

[0033] The top end of the faucet rod is connected to the display screen of the mobility scooter, and the steering control of the mobility scooter can be achieved by the circumferential rotation of the faucet rod on the base column. The gas rod is a product currently available on the market and is prior art, so it will not be described in detail here. When the faucet rod is in a vertical state, the pressing part is buckled on the side of the faucet rod facing the seat plate, and the driving part is in contact with the valve of the gas rod and does not squeeze. At this time, the gas rod and the faucet rod inside the faucet rod cannot be rotated and folded on the base; pressing the switch causes the pressing part to deflect toward the faucet rod, and the driving part simultaneously deflects toward the valve of the gas rod and forms an extrusion, causing the gas rod to begin to extend. Since the length of the faucet rod is fixed, the extension of the gas rod will drive the faucet rod to deflect toward the seat plate synchronously, thereby easily realizing the folding of the faucet rod, and the speed of the faucet rod deflection can be controlled to prevent the faucet rod from rotating too fast and falling, causing damage to electrical control components such as circuits and circuit boards.

Claims

1. A foldable scooter, characterized in that: The invention comprises a front frame (1), wherein both sides of the front frame (1) are provided with connection parts (11) which are arranged in a mirror image with each other and are bent upwardly and rearwardly of the front frame (1), the top of the connection part (11) is connected with a support rod (2) which can be turned toward the front frame (1), a seat plate (3) which is rotatably connected to the support rod (2) is provided between the two support rods (2) and corresponds to the top of the front frame (1), a transmission rod (22) is provided inside the support rod (2), and one end of the transmission rod (2) is connected to the front frame (1). The connecting portion (11) is rotatably connected, the other end of the transmission rod (22) is rotatably connected to the seat plate (3) and can be folded as the seat plate (3) flips upward, a handlebar rod (4) is vertically arranged and circumferentially rotatably connected to the front frame (1) is provided in the middle of the front side of the front frame (1), the handlebar rod (4) is rotatably connected to the front frame (1) and can be locked, and when the support rod (2) and the handlebar rod (4) are folded, the seat plate (3) and the support rod (2) are located below the handlebar rod (4).

2. The foldable scooter according to claim 1, characterized in that: Two movable pins (31) are arranged in mirror image and can reciprocate toward the two support rods (2) respectively at the bottom of one side of the seat plate (3) connected to the support rod (2); a first positioning hole (21) for inserting the movable pin (31) is provided on the support rod (2); a second positioning hole (24) is provided on one side of the support rod (2) close to the side of the seat plate (3); and the positions of the first positioning hole (21) and the second positioning hole (24) are both located on the rotation trajectory of the seat plate (3).

3. The foldable scooter according to claim 1, characterized in that: One end of the transmission rod (22) connected to the seat plate (3) is rotatably connected to the seat plate (3) via a connecting piece (221); an extension portion (222) bent toward the seat plate (3) is provided on the connecting piece (221); a convex column (223) extending toward the seat plate (3) is provided on the inner side of the extension portion (222); and a groove (32) cooperating with the convex column (223) is provided on the seat plate (3).

4. The foldable scooter according to claim 3, characterized in that: An arc-shaped guide groove (23) is provided on the inner side of the support rod (2), the center of the arc-shaped guide groove (23) is consistent with the rotation center of the seat plate (3), and the connecting piece (221) is located in the arc-shaped guide groove (23) and can move along the arc-shaped track of the arc-shaped guide groove (23).

5. The foldable scooter according to claim 2, characterized in that: Both sides of the bottom of the seat plate (3) are provided with positioning portions (33) for the movable pin (31) to pass through, the positioning portion (33) is provided with a guide groove (331) arranged along the axial direction of the movable pin (31), the outer end of the movable pin (31) is provided with a convex portion (311) abutting against the inner wall of the guide groove (331), and a telescopic spring (332) is provided in the guide groove (331) corresponding to the peripheral side of the movable pin (31).

6. The foldable scooter according to claim 5, characterized in that: A push plate (34) movable in the front-rear direction of the seat plate (3) is provided between the two positioning portions (33); drive blocks (35) for driving the movable pin (31) to move axially are provided on both sides of the push plate (34); a limit cover (36) connected to the seat plate (3) is provided on the upper cover of the drive block (35); and a limit groove (361) for allowing the drive block (35) to move is provided between the limit cover (36) and the seat plate (3).

7. The foldable scooter according to claim 6, characterized in that: A protrusion (351) is provided on the outer side of the driving block (35), and a return spring (352) is provided on the protrusion (351) along the moving direction of the push plate (34), and an end of the return spring (352) is connected to a protrusion (37) provided at the bottom of the seat plate (3).

8. The foldable scooter according to claim 6, characterized in that: An oblique groove (353) inclined toward the inner end of the movable pin (31) is provided on the end surface of the driving block (35); a roller (312) extending into the oblique groove (353) and abutting against the side wall of the oblique groove (353) is provided at the inner end of the movable pin (31); and a limiting portion (362) abutting against the side wall of the movable pin (31) is provided inside the limiting cover (36).

9. The foldable scooter according to claim 1, characterized in that: A bottom column (12) extending upward is provided at the middle of the front side of the front frame (1); a base (41) rotatably connected to the bottom column (12) is provided at the bottom of the tap rod (4); a gas rod (42) is provided inside the tap rod (4) for controlling the tap rod (4) to rotate relative to the base (41) toward the rear side of the front frame (1); a switch (43) is provided in the middle of the tap rod (4) and extends to the inside of the tap rod (4) and contacts the top movable end of the gas rod (42) and can rotate up and down; and a bottom fixed end of the gas rod (42) is rotatably connected to the middle of the base (41).

10. The foldable scooter according to claim 9, characterized in that: The switch (43) comprises a driving portion (431) in contact with a valve at the top of the gas rod (42) and a pressing portion (432) located outside the handlebar rod (4) and arranged toward the rear side of the front frame (1); a positioning member (44) is provided on the periphery of the top of the gas rod (42); the top of the positioning member (44) extends to the side of the driving portion (431) and is provided with a limiting column (441) located above the driving portion (431).

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