WO2016049911A1 - Electric folding mechanism of foldable transport vehicle - Google Patents

Abstract

An electric folding mechanism of a foldable transport vehicle. Provided below a footrest (1) thereof is a motor (2). A motor shaft (3) is provided with a worm gear (4). The worm gear is connected to a worm (5). A toggling gear (7) is provided at an extremity of the worm fitting a foldable shaft (6). The foldable shaft is provided with corresponding gear teeth. The electric folding mechanism of the foldable transport vehicle is capable of implementing electric-powered folding, where opening and closing of foldable joints are completed by means of electric control, also is capable of implementing multilevel control, avoids complex manual operating processes, provides a high level of automaticity, is fast and effortless to use, transmits movements during the implementation process primarily by driving the worm gear and the worm via the motor, where the worm gear and the worm can produce a large drive ratio, and has stable transmission a low noise level.

Description

 Electric folding mechanism for folding vehicles  Electric folding mechanism for folding vehicles

 Technical field

 The invention belongs to a folding vehicle accessory, and in particular to an electric folding mechanism for a folding vehicle.

 Background technique

With the improvement of people's living standards, the concept of personality, fashion, health and environmental protection has begun to penetrate the hearts of the people. Fashionable and environmentally-friendly daily necessities and transportation vehicles have been sought after by more and more people, saving storage space and being convenient to carry. The car, after being folded, is small in size and light in weight, and the portable folding vehicle is very convenient to go up and down stairs, driving, taking a bus or subway, and is more and more popular among fashion owners.

The existing foldable vehicles, such as folding bicycles, folding electric vehicles, folding electric wheelchairs, etc., are simple to fold, usually a folding joint is arranged between the front wheel directions of the two frame tubes, and the vehicle is folded by the joints. The folding of the frame is completed in half, and the volume of the vehicle is still large after folding. Moreover, the folding mechanism simply pivots the two frame tubes, and the folded vehicle structure is extremely unstable, and the driving safety is not obtained. Guarantee, and this kind of scooter that simply folds the body, the operation steps are cumbersome and still need further improvement.

 How to develop a folding mechanism that is easy to fold is a technical problem that needs to be solved by those skilled in the art.

 Summary of the invention

 The technical problem to be solved by the present invention is to provide an electric folding mechanism for folding a vehicle, which realizes electric folding, automatic control, and fast and efficient.

 The present invention is achieved by the following technical solution: designing an electric folding mechanism for a folding vehicle, The utility model is characterized in that a motor is arranged at the bottom of the pedal, a turbine is arranged on the motor shaft, a turbine is connected to the worm, a matching end of the worm and the folding shaft is provided with a tooth, and the folding shaft is provided with a corresponding tooth; The motor shaft is provided with a driving gear, the driving gear drives the rear wheel frame bushing, and the long gear is disposed between the driving gear and the rear wheel frame bushing; The bottom of the pedal is further provided with a motor for driving the folding of the seat rod, the motor shaft is provided with a worm, the worm driving the seat rod is opened and closed; the folding shaft is provided with a large gear, the large gear is engaged with the worm tooth; the rear wheel frame comprises a left wheel frame and a right wheel The sleeves of the left and right wheel frames are correspondingly arranged to match the teeth; the inner rings of the sleeves of the left and right wheel frames are respectively provided with inner protrusions, and the inner protrusions are moved in the threaded track provided by the folding shaft; The worm is provided with a universal joint; the motor shaft drives a drive shaft with left-handed and right-handed threads, and the sleeves of the left and right wheel frames are provided with threads that cooperate with the drive shaft, and the left and right wheel frames are folded along the same The shaft is provided with a thread groove movement; the bottom of the pedal is further provided with a motor for driving the folding of the seat rod, the motor shaft is connected with the screw rod, and the nut shaft matched with the screw rod is connected to the seat rod; the bottom of the pedal is further provided with a motor for driving the folding of the seat rod a motor shaft is connected to the lead screw, and a nut matched with the lead screw is connected to the seat rod, and the lead screw is provided with a universal joint; The motor shaft is connected to the transmission rod through a bevel gear transmission group, and the transmission rod drives the folding shaft.

 Advantageous effects of applying the present invention include:

The electric folding mechanism of the vehicle can realize electric folding, the opening and closing of the folding joint is completed by electric control, and multi-level and multi-level control can be realized, and the cumbersome manual operation process is avoided, the automaticness is high, the speed is fast, and the realization process is mainly driven by a motor. The worm and worm transmit motion, the worm and worm can get a large transmission ratio, and the transmission is smooth and quiet.

 The worm is provided with a universal joint, It is possible to realize the shaft power output in different directions and different angles. It is especially important to use the device when the folding shaft is too long, it is necessary to avoid other component obstacles, curve transmission or need to adjust the corner.

A long barrel gear for driving between the driving gear and the rear wheel frame bushing may be disposed, and the distance between the driving gear and the rear wheel frame bushing may not be directly driven, and the gear speed ratio may also be adjusted. The motor shaft forward rotation driving pedal and the rear wheel frame are synchronously closed; the motor shaft reverse driving pedal is synchronously developed with the rear wheel frame. The long barrel gears transmit power and direction, and can be used with different sizes of rear wheel frames, especially for lateral movement when the rear wheel frame bushings are folded.

The inner sleeves of the sleeves of the left and right wheel frames are respectively provided with inner protrusions, and the inner protrusions are moved in the thread-type rails provided by the folding shafts. When folded, the left and right sleeves are rotated with the thread-type rails to the ends of the folding shaft. .

Expanded by the folded state, the driving gear drives the long barrel gear, and the long barrel gear drives the left sleeve and the right sleeve to rotate toward the midpoint of the folding shaft, and the left wheel frame and the right wheel frame are deployed toward the outside of the pedal. When the deployment is completed, the left wheel frame and the right side are completed. The wheel carrier merges into an integral wheel frame, and the left rear wheel and the right rear wheel merge to form an integral rear wheel.

 The motor sets the controller, and the controller controls the running time, the rotation speed and the stroke of the motor, so that the wrong time folding or the wrong time deployment of the seat rod and the pedal can be realized.

In order to realize the cooperation between the folding shaft of the front frame and the worm, a large gear can be arranged on the folding shaft of the front frame, and the large gear meshes with the worm teeth. The motor shaft rotates to drive the worm, the large gear rotates forward, and the folding shaft rotates forward; the motor shaft reverses the drive gear reverse.

The bottom of the pedal is further provided with a motor for driving the folding of the seat rod, the motor shaft is connected with the screw, and the nut shaft matched with the screw is connected to the seat rod. The screw drive between the lead screw and the nut can convert the rotary motion into a linear motion, the motor shaft drives the lead screw to rotate forward or reverse, the nut reciprocates linearly with respect to the lead screw, drives the seat rod to rise or fall, and the nut and the seat rod The shaft connection can be adapted to different angles of lift and automatically achieve the closing or unfolding of the seat rod.

 In order to adapt to different lifting angles, it is also possible to provide a universal joint drive in the middle of the screw.

 Said The motor shaft is connected to the transmission rod through the bevel gear transmission group, the transmission rod drives the folding shaft, the motor shaft is sleeved with a bevel gear, and the transmission rod is provided with a bevel gear matched thereto, and the rotation of the motor shaft can drive the transmission rod to rotate, and the transmission rod passes the gear or the thread Driving the folding shaft to rotate, thereby achieving the opening and closing of the folding portion, The transmission ratio is accurate, the efficiency is high, the structure is compact, the work is reliable, and the service life is long.

 DRAWINGS

 Figure 1 is a schematic structural view of the present invention;

 2 is a schematic structural view of a bottom surface of a pedal of the present invention;

 Figure 3 is a schematic view of the transmission structure of the present invention;

 Figure 4 is a schematic structural view of the rear wheel carrier of the present invention;

 Figure 5 is a schematic view showing the structure of the folding frame of the rear wheel frame of the present invention;

 Figure 6 is a schematic structural view of the rear wheel frame bushing of the present invention;

 Figure 7 is a schematic view showing the structure of the seatpost and the pedal of the present invention;

 Figure 8 is a schematic structural view of Embodiment 4 of the present invention;

 Figure 9 is a schematic view showing the structure of the screw nut and the seat post of the present invention;

 Figure 10 is a schematic structural view of Embodiment 6 of the present invention;

 Figure 11 is a schematic view showing the unfolding structure of the folding type vehicle of the present invention;

 Figure 12 is a schematic view showing the closed structure of the folding type vehicle of the present invention;

 Figure 13 is a schematic structural view of an n-type bracket of the present invention;

 In the figure: 1, pedal; 2, motor; 3, motor shaft; 4, turbine; 5, worm; 6, front frame folding shaft; 8; drive gear; 9, rear wheel frame bushing; 10, long pin gear; 11, seat rod drive motor; 12, large gear; 13 , left wheel frame; 14 , right wheel frame; , inner stud; 16 , rear wheel frame folding shaft; 17, threaded track; 18, universal joint; 19, left-hand thread; 20, right-hand thread; 21, drive shaft; 22, lead screw; 24, seat rod; 25, bevel gear; 26, transmission rod; 27, front frame; 28, left rear wheel; 29, right rear wheel; 30, front wheel; 31, seat rod folding shaft; , n-type bracket.

 detailed description

 As shown in the figure: the present invention is an electric folding mechanism for folding a vehicle. The bottom of the pedal 1 is provided with a motor 2, and the motor shaft 3 is provided with a turbine. 4, the turbine 4 is connected to the worm 5, the worm 5 and the front end of the folding shaft 6 of the front frame are provided with the teeth 7 , and the front frame folding shaft 6 is provided with the teeth matching the teeth 7 . The motor shaft 3 is provided with a driving gear 8, the driving gear 8 drives the rear wheel frame bushing 9, and the long gear 10 is disposed between the driving gear 8 and the rear wheel frame bushing 9; Rod 24 The folding seat rod driving motor 11 , the motor shaft of the seat rod driving motor 11 is provided with a worm 5, the worm 5 drives the opening and closing of the seat rod 24; the front frame folding shaft 6 is provided with a large gear 12 , a large gear 12 engaging with a worm 5 tooth; the rear wheel frame includes a left wheel frame 13 and a right wheel frame 14, and the left wheel frame 13 and the right wheel frame 14 are correspondingly arranged to match the teeth; the left wheel frame 13 and the right wheel frame The inner ring of the sleeve of the 14 is respectively provided with an inner protrusion 15 which moves in the threaded track 17 provided by the folding shaft 16 of the rear wheel frame; The worm 5 is provided with a universal joint 18; the motor shaft 3 drives a drive shaft 21 with a left-handed thread 19 and a right-handed thread 20, and the sleeves of the left and right wheel frames 13 and 14 are provided with a thread that cooperates with the drive shaft 14. The left wheel frame 13 and the right wheel frame 14 are arranged along the thread groove of the rear wheel frame folding shaft 16; the bottom of the pedal 1 is further provided with a seat rod driving motor 11 for driving the folding rod 24, and the motor shaft connection of the seat rod driving motor 11 The lead screw 22 and the nut 23 engaged with the lead screw 22 are connected to the seat rod 24 via a rotating shaft; the bottom of the pedal 1 is further provided with a seat rod driving motor 11 for driving the folding rod 24, and a motor shaft connecting screw for the rod driving motor 11 22, the nut 23 mated with the lead screw 22 is connected to the seat rod 24, the lead screw 22 is provided with a universal joint 18; The motor shaft 3 is connected to the transmission rod 26 via a bevel gear 25 transmission set, and the transmission rod 26 drives the front frame folding shaft 6.

 The implementation process of the electric folding mechanism is described below. The electric folding vehicle includes a pedal 1, a seat bar 24, a front frame 27 and a rear wheel frame. The pedal 1 can be folded with the front frame 27, the seat bar 24 can be folded toward the top surface of the pedal 1, and the rear wheel frame can be folded toward the bottom surface of the pedal 1.

 Example 1: Pedal 1 Bottom motor 2, motor shaft 3 Turbine 4, Turbine 4 Connecting worm 5, worm 5 The mating end of the front frame folding shaft 6 is provided with a tooth 7, and the front frame folding shaft 6 is provided with corresponding teeth. When the unfolded state needs to be folded, press the power switch, the motor shaft 3 rotates to drive the turbine 4 to rotate, the turbine 4 Rotating causes the worm 5 to cooperate with it, and the tooth 7 on the worm 5 pushes the front folding frame 6 to move the pedal 1 toward the front frame 27, the pedal 1 and the front frame 27 Automatic folding and closing; when the folding state needs to start riding, press the power switch again, the power switch rebounds and resets, the motor shaft 3 reversely drives the turbine 4, the worm 5, the tooth 7 pushes the front folding frame 6 , the pedal 1 Separate from the front frame 27 and move towards the ground, the vehicle is automatically deployed.

 The worm 5 is provided with a universal joint 18, which can realize shaft power output in different directions and different angles, and the front frame folding shaft 6 It is especially important to use this device when it is too long to avoid obstacles in other parts, curve drives, or when cornering is required.

 In order to realize the cooperation of the front frame folding shaft 6 and the worm 5, a large gear 12 and a large gear 12 may be disposed on the front frame folding shaft 6 Engage with the worm 5 teeth. Motor shaft 3 forward drive turbine 4 worm 5, toggle large gear 12 forward rotation, front frame folding shaft 6 forward rotation; motor shaft 3 reverse drive large gear 12 Reverse.

 The motor shaft 3 is further provided with a driving gear 8 , the driving gear 8 drives the rear wheel carrier bushing 9 , and the motor shaft 3 drives the driving gear 8 In the forward direction, the rear wheel frame bushing 9 is reversed, and the rear wheel frame is folded and closed toward the bottom of the pedal 1; the motor shaft 3 is reversely driven to automatically expand the rear wheel frame. A long barrel gear 10 for driving between the driving gear 8 and the rear wheel frame bushing 9 can be disposed, and the distance between the driving gear 8 and the rear wheel frame bushing 9 cannot be directly driven, and can also be used. The gear ratio is adjusted, and the motor shaft 3 is rotated to drive the pedal 1 and the rear wheel frame to be synchronously closed; the motor shaft 3 is reversely driven to rotate the pedal 1 and the rear wheel frame simultaneously. The long barrel gear 10 is capable of transmitting power and direction, and is capable of cooperating with different sizes of the rear wheel carrier, particularly in conjunction with the lateral movement of the rear wheel frame bushing 9 when folded.

 In this example, the one-button operation solves the problem of automatically folding or unfolding the rear wheel frame while the pedal 1 and the front frame 27 are folded or unfolded.

 Embodiment 2: The rear wheel carrier includes a left wheel frame 13 and a right wheel frame 14, and a left wheel frame 13 and a right wheel frame 14 In the unfolded state, they are merged into one integral wheel frame, and the left rear wheel 28 and the right rear wheel 29 are combined into one integral wheel. In the folded state, the left wheel frame 13 and the right wheel frame 14 are fitted to the bottom surface of the pedal 1 and are separated from the front wheel 30. Both sides; the sleeve 9 of the left wheel frame 13 and the right wheel frame 14 are provided with the teeth of the long barrel gear 10, and the long barrel gear 10 is disposed between the driving gear 8 and the left and right sleeves 9. The left wheel frame 13 The inner ring of the sleeve 9 of the right wheel frame 14 is respectively provided with an inner boss 15 which moves in the threaded track 17 provided by the folding frame 16 of the rear wheel frame, and the left and right bushings when folded 9 As the threaded track 17 is rotated, it is separated to the ends of the rear wheel frame folding shaft 16.

 When the unfolded state needs to be folded, the power is turned on, and the driving gear on the motor shaft 3 drives the long barrel gear 10 and the long barrel gear 10 The left and right sleeves are respectively driven to rotate toward both ends of the rear wheel frame folding shaft 16, and the left wheel frame 13 is separated from the right wheel frame 14 and simultaneously closed toward the bottom surface of the pedal 1, and the left wheel frame 13 and the right wheel frame 14 are respectively associated with the pedals. 1 When closed, the left rear wheel 28 and the right rear wheel 29 also move to both sides of the front wheel 30; when folded, the driving gear 8 drives the long gear 10 and the long gear 10 The left sleeve and the right sleeve are driven to rotate toward the midpoint of the rear wheel frame folding shaft 16, and the left wheel frame 13 and the right wheel frame 14 are unfolded toward the outside of the pedal 1. When the deployment is completed, the left wheel frame 13 and the right wheel frame 14 are completed. Combined into an integral wheel carrier, the left rear wheel 28 and the right rear wheel 30 merge to form an integral rear wheel.

 In this example, the one-button operation solves the problem that the left wheel frame 13 and the right wheel frame 14 are simultaneously synchronized while the pedal 1 and the front frame are folded or unfolded. Automatically folded or unfolded.

 Embodiment 3, the pedal 1 is also provided with a driving seat at the bottom. 24 Folding seat rod driving motor 11 , motor shaft setting worm 5 , worm 5 drive seat bar 24 opening and closing. A gear or a thread is arranged at the contact end of the worm 5 and the seat rod 24, and the corresponding gear or thread is set by the seat rod 24, which is folded by the unfolded state, and the motor rotates to drive the seat rod 24 Closed; unfolded by the folded state, the motor is reversed, and the pedal 1 is driven to rotate in synchronization with the seatbar 24.

 Motor 2 and the rod drive motor 24 Set the controller, the controller controls the motor 2 and the seat rod drive motor 24 The running time, the rotation speed and the stroke can realize the wrong folding or wrong time expansion of the seat bar 24 and the pedal 1 , and are folded by the unfolded state to drive the seat rod driving motor of the seat bar 24 to operate first, and drive the front frame 27 The motor 2 folded with the pedal 1 is delayed, so that the seat bar 24 is first closed to the front frame 27, and the pedal 1 is closed toward the front frame 27, with the lever 24 along with the pedal 1 The folds are attached to the front frame 27; the motor that is driven by the folded state to drive the pedal 1 to be separated from the front frame 27 is operated first, and the seat rod driving motor of the driving lever 24 is operated. 11 Delayed operation, pedal 1 First spread toward the ground, the lever 24 will then extend a distance and then fully unfold as the motor runs.

The controller can also set a wireless signal receiver, the external device sets a wireless signal transmitter, and the external device includes a remote controller, a mobile phone, etc., and controls the folding and unfolding of the vehicle through a remote controller or a mobile phone, and is folded by the unfolded state, and the mobile phone wireless signal is transmitted. The controller issues a corresponding command and transmits it to the wireless signal receiver. The controller analyzes the command and controls the motor to run forward, and the motor drives each folding joint to close. The same can also be controlled to expand from the collapsed state.

 In this example, the one-button operation solves the problem that the seat lever 1 and the front frame 27 are folded or unfolded, and the seat rod is synchronously realized. Automatically folded or unfolded.

 Example 4: The motor shaft 3 drives a drive shaft 21 with a left-handed thread 19 and a right-handed thread 20, and the sleeves 9 of the left and right wheel frames 13 and 14 are respectively provided with threads for engaging the drive shaft 21, the left wheel frame 13 and the right wheel frame 14 is provided with a thread groove movement along the rear wheel frame folding shaft 16. The motor shaft 3 is provided with a gear. The midpoint of the transmission shaft 21 is provided with a gear matched thereto. The left and right sides of the gear are respectively a left-hand thread 19 and a right-hand thread 20.

 The motor shaft 3 rotates forwardly to drive the drive shaft 21 to rotate forward, the left-hand thread 19 drives the left sleeve to rotate, and the right-hand thread 20 drives the right sleeve to rotate, and the left and right sleeves 9 Rotating motion to both ends of the rear wheel frame folding shaft 16 respectively, the left wheel frame 13 is separated from the right wheel frame 14 and closed toward the bottom surface of the pedal 1; similarly, The motor shaft 3 reversely drives the left wheel frame 13 and the right wheel frame 14 into an integrated wheel frame and is in an unfolded state.

 This example uses a threaded drive to drive the folding and unfolding of the left and right wheel frames 13 and 14.

Embodiment 5: The bottom of the pedal 1 is further provided with a seat rod driving motor 11 for driving the folding rod 24, the motor shaft of the rod driving motor 11 is connected with the screw 22, and the nut 23 matched with the screw rod 22 is connected to the seat rod through the rotating shaft. twenty four. The screw transmission between the lead screw 22 and the nut 23 can convert the rotary motion into a linear motion, the motor shaft drives the lead screw 22 to rotate forward or reverse, and the nut 23 reciprocates linearly with respect to the lead screw 22 to drive the seat rod 24 to rise or Falling, the nut 23 is axially coupled to the seat bar 24 to accommodate different angles of lift, automatically enabling the seat bar 24 to close or unfold.

 In order to accommodate different angles of lift, a universal joint 18 drive can also be provided in the middle of the lead screw 22.

 In this example, the nut 23 can also be axially coupled to the seatbar folding shaft 31, and the opening and closing of the seatbar 24 can be achieved by driving the seatbar folding shaft 31.

The seat lever folding shaft 31 is provided with an 'n' type bracket 32 in the direction of the seat rod 24, and the nut 23 is shaft-connected to both side arms of the 'n' type bracket 32, and the nut 23 is provided with a lead screw 22 fitted thereto. The 'n' type bracket 32 also acts as a lever to reduce the load on the motor.

 This example solves the problem of requiring high-power motors and high energy consumption.

 Example 6: The motor shaft 3 is connected to the transmission rod 26 through the bevel gear 25 transmission group, the transmission rod 26 drives the front frame folding shaft 6, the motor sleeve 9 is provided with the bevel gear 25, the transmission rod 26 is provided with the bevel gear, and the rotation of the motor shaft 3 The transmission rod 26 can be driven to rotate, and the transmission rod 26 drives the front frame folding shaft 6 to rotate by gears or threads, thereby achieving the opening and closing of the folding portion. The bevel gear set can also achieve a variable direction drive.

 In this example, the bevel gear transmission is used to solve the automatic unfolding and folding of the folding vehicle.

The combination of the above embodiments can obviously realize the synchronous opening and closing of a plurality of folding parts by one key, for example, controlling the pedal 1, the left wheel frame 13, the right wheel frame 14, the seat seat bar 24, and the front handle by the wrong operation of the motor. The folding and unfolding of the frame 27, the specific operation process will not be repeated.

It is to be noted that the above-described embodiments are merely preferred embodiments of the present invention, and any equivalent or similar substitutions of the present invention will fall within the scope of the working principles of the present invention. protected range.

Claims (11)

1. The utility model relates to an electric folding mechanism of a folding vehicle, which is characterized in that a motor is arranged at the bottom of the pedal, a turbine is arranged on the motor shaft, a worm is connected to the turbine, a matching end of the worm and the folding shaft is provided, and the folding shaft is provided with corresponding teeth.
2. An electric folding mechanism for a folding vehicle according to claim 1, wherein The motor shaft is provided with a driving gear, the driving gear drives the rear wheel frame bushing, and the long gear is disposed between the driving gear and the rear wheel frame bushing.
3. An electric folding mechanism for a folding vehicle according to claim 1 The utility model is characterized in that: the bottom of the pedal is further provided with a motor for driving the folding of the seat rod, the motor shaft is provided with a worm, and the worm drives the seat rod to open and close.
4. An electric folding mechanism for a folding vehicle according to claim 1 The utility model is characterized in that the folding shaft is provided with a large gear, and the large gear is engaged with the worm teeth.
5. An electric folding mechanism for a folding vehicle according to claim 2 The rear wheel carrier includes a left wheel frame and a right wheel frame, and the sleeves of the left and right wheel frames are correspondingly arranged to match the teeth.
6. An electric folding mechanism for a folding vehicle according to claim 5 The inner ring of the sleeve of the left and right wheel frames is respectively provided with an inner protruding column, and the inner protruding column moves in a thread type track provided by the folding shaft.
7. An electric folding mechanism for a folding vehicle according to claim 1, wherein said worm is provided with a universal joint.
8. An electric folding mechanism for a folding vehicle according to claim 1, wherein The motor shaft drives a drive shaft with left-handed and right-handed threads, and the sleeves of the left and right wheel frames are provided with threads for mating with the drive shaft, and the left and right wheel frames are moved along the threaded grooves provided by the folding shaft.
9. An electric folding mechanism for a folding vehicle according to claim 1, wherein The bottom of the pedal is further provided with a motor for driving the folding of the seat rod, the motor shaft is connected with the screw, and the nut shaft matched with the screw rod is connected to the seat rod.
10. An electric folding mechanism for a folding vehicle according to claim 1, wherein The bottom of the pedal is further provided with a motor for driving the folding of the seat rod, the motor shaft is connected with the screw, and a nut matched with the screw is connected to the seat rod, and the screw rod is provided with a universal joint.
11. An electric folding mechanism for a folding vehicle according to claim 1, wherein The motor shaft is connected to the transmission rod through a bevel gear transmission group, and the transmission rod drives the folding shaft.

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