CN210310716U

CN210310716U - Quick folding auto-lock of scooter mechanism that dies

Info

Publication number: CN210310716U
Application number: CN201920279676.7U
Authority: CN
Inventors: 应刚
Original assignee: Yongkang Kuge Technology Co ltd
Current assignee: Yongkang Kuge Technology Co ltd
Priority date: 2019-03-06
Filing date: 2019-03-06
Publication date: 2020-04-14
Anticipated expiration: 2029-03-06

Abstract

The utility model discloses a scooter is folding from locking mechanism fast, including footboard, rocking arm, locking mechanical system and toothholder, the toothholder is installed in one side of footboard front end, the toothholder is equipped with the toothholder tooth, and locking mechanical system installs in the opposite side of footboard front end, the rocking arm is equipped with the rocking arm tooth with toothholder tooth meshing, and the rocking arm tooth makes intertooth meshing lock solid or locking mechanical system pine separation messenger intertooth separation unblock through locking mechanical system promotion with the toothholder tooth, and during the intertooth separation, the rocking arm is rotatable for the footboard, and the rocking arm tooth is tapering inclined plane gear with the toothholder tooth the utility model discloses the unblock is semi-automatic mode, only needs just can realize the unblock with the help of lever power through stirring locking handle and lock to the tooth meshing clearance of rocking arm tooth and toothholder tooth does not receive the interference and the influence of any third part. The utility model discloses the gear has the ability from the centering for the clearance of meshing at every turn is eliminated through tooth clearance and conical surface completely, only needs the locking handle to apply appropriate pressure and can realize the zero clearance meshing.

Description

Quick folding auto-lock of scooter mechanism that dies

Technical Field

The utility model relates to an instrument field of riding instead of walk especially relates to a scooter is folding from locking death fast.

Background

The scooter is a novel tool for riding instead of walk, the export market is rapidly increased in recent years, and the scooter is portable and light in weight and is popular with wide users. Becoming one of the new travel tools following the bicycle. The existing scheme is as follows: the original scooter folder is generally folded by adopting a connecting rod or a lock pin mechanism. The main defects are as follows: the electric scooter folding mechanism of the connecting rod and the locking pin mechanism has a certain clearance between the folding state and the unfolding state due to the accumulated tolerance because of the large number of parts, and the clearance can be enlarged by 10-20 times at the handle end due to the special wrist group position of the scooter, so that the handle bar shakes during driving. And most of scooter can't fold under its dead weight oppression, generally need rock the handle, and the folding operation is carried out to the power.

Disclosure of Invention

The utility model aims at providing a scooter is folding from locking dead mechanism fast to prior art's defect.

In order to realize the above purpose, the utility model adopts the following technical scheme:

the utility model provides a scooter is folding from locking mechanism fast, includes footboard, rocking arm, locking mechanical system and toothholder, the toothholder is installed in one side of footboard front end, the toothholder is equipped with the toothholder tooth, locking mechanical system installs the opposite side at the footboard front end, the rocking arm is equipped with the rocking arm tooth with toothholder tooth meshing, rocking arm tooth and toothholder tooth pass through locking mechanical system and promote messenger's intertooth meshing lock solid or locking mechanical system pine from making intertooth separation unblock, during the intertooth separation, the rocking arm is rotatable for the footboard, rocking arm tooth and toothholder tooth are tapering inclined plane gear. The conical bevel gear can ensure that the fit among the teeth does not deviate when the gear is locked, any angle can be calibrated and pulled back in the pressing process, and the conical teeth have conical inclination, so that the centering effect is better

Furthermore, the included angle between the side surface of each tooth of the rocker arm tooth and the tooth seat tooth and the vertical axis of the center of the tooth is 12 degrees.

Further, the tooth profile distribution mode of the rocker arm teeth and the tooth seat teeth is as follows:

360 ° ÷ U ÷ 2= T; u = 2T; (U is the number of bisectors of the teeth, T is the number of gear teeth)

30 (gear diameter mm). times.pi. U > 1.5;

360 ° ÷ U = bisected angle; where U =40, 36, 30, 24, 20, 18, 12, 10, 8, the number of teeth T =20, 18, 15, 12, 10, 9, 6, 5, 4.

Further, when the rocker arm is folded, the angle of the fork with the pedal is 70-90 degrees, (any number of 70-90 degrees) ÷ (360-degree/U) = Y, and Y is an integer; y × (360 °/T) = fold angle, U =40, 36, 30, 20, 18, 10, 8, tooth number T =20, 18, 15, 10, 9, 5, 4, fold angle 72 °, 80 °, 72 °, 72 °, 90 °.

Furthermore, the locking mechanism is horizontally and rotatably connected with the rocker arm, and when the rocker arm is folded and unfolded, the teeth of the rocker arm are meshed with the teeth of the tooth holder for locking.

Furthermore, the locking mechanism is provided with a locking handle, the bottom of the locking handle is provided with a cam, the locking handle rotates along the axial direction of the cam, and the cam is used for pushing to enable the inter-tooth meshing to be locked or the locking mechanism to be released to enable the inter-tooth separation to be unlocked.

Furthermore, the cam comprises a long shaft cambered surface and a short shaft cambered surface, the long shaft cambered surface pushes the teeth to be meshed and locked, and the short shaft cambered surface loosens the teeth to separate and unlock the teeth.

Furthermore, the rocker arm teeth and the tooth seat teeth are both 10-degree 36 equally-divided 18-tooth taper bevel gears or 20-degree 18 equally-divided 9-tooth taper bevel gears.

Further, the thickness of the rocker arm teeth and the tooth seat teeth is at least 2 mm.

Furthermore, the widths of tooth tops of the rocker arm teeth and the tooth seat teeth are larger than or equal to 1.4 mm.

Adopt the technical scheme of the utility model, the beneficial effects of the utility model are that: the utility model discloses the unblock is semi-automatic mode, only needs just can realize the unblock with the help of lever power through stirring the locking handle and lock to the tooth meshing clearance of rocking arm tooth and tooth seat tooth does not receive the interference and the influence of any third part. The utility model discloses the gear has the ability from the centering for the clearance of meshing at every turn is eliminated through tooth clearance and conical surface completely, only needs the locking handle to apply appropriate pressure and can realize the zero clearance meshing.

Drawings

Fig. 1 is a schematic view of a scooter provided by the present invention showing a fast folding self-locking mechanism in an unfolded state;

fig. 2 is a schematic view of a scooter provided by the present invention showing a folding state of a fast folding self-locking mechanism;

FIG. 3 is an exploded view of the overall structure of the fast folding self-locking mechanism of the scooter of the present invention;

FIG. 4 is a structural diagram of a rocker arm of the quick folding self-locking mechanism of the scooter provided by the present invention;

FIG. 5 is a structural view of a locking handle of the fast folding self-locking mechanism of the scooter of the present invention;

FIG. 6 is a schematic view of the assembly state of the locking handle and the folding seat of the fast folding self-locking mechanism of the scooter of the present invention;

fig. 7 is a schematic structural view of a tooth engagement surface of a fast folding self-locking mechanism of a scooter provided by the present invention;

FIG. 8 is a cross-sectional view of a fast folding self-locking mechanism of a scooter of the present invention;

FIG. 9 is a first cross-sectional view of a scooter folding rapidly self-locking mechanism provided by the present invention;

fig. 10 is a second cross-sectional view of the fast folding self-locking mechanism of the scooter of the present invention.

The locking mechanism comprises a rocker arm cover 1, a rocker arm cover 2, a rocker arm seat 3, a tooth seat screw 4, a tooth seat 5, a tooth seat nut 6, a pedal 7, a pedal screw 8, a folding seat nut 9, a folding seat 10, a folding seat nut 11, a locking buckle cover 12, a locking buckle cover spring 13, a locking handle 14, a locking buckle seat 15, a locking buckle seat screw 16, a rocker arm cover locking screw 17, a rocker arm cover locking countersunk head screw 18, an unlocking spring 19, a rotating shaft 20, a rotating shaft snap spring 21, a folding handle small shaft 22, a rocker arm tooth 23, a tooth seat tooth 24, a clamping groove 25 and a cam.

Detailed Description

The specific embodiments of the present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1-3, a scooter fast folding self-locking mechanism comprises a pedal 6, a rocker arm, a locking mechanism and a tooth holder 4, wherein the tooth holder 4 is installed at one side of the front end of the pedal 6, the tooth holder 4 is provided with tooth holder teeth 23, the locking mechanism is installed at the other side of the front end of the pedal 6, the rocker arm is provided with rocker arm teeth 22 meshed with the tooth holder teeth 23, the rocker arm teeth 22 and the tooth holder teeth 23 are pushed by the locking mechanism to enable inter-tooth meshing locking or the locking mechanism to be released to enable inter-tooth separation unlocking, when the inter-tooth separation is performed, the rocker arm is rotatable relative to the pedal 6, and the rocker arm teeth and the tooth holder teeth are both tapered bevel gears, as shown in fig. 7. The locking mechanism is horizontally and rotatably connected with the rocker arm, and when the rocker arm is folded and unfolded, the rocker arm teeth and the tooth holder teeth are meshed and locked. The conical bevel gear can ensure that the fit between the teeth does not deviate when the lock is locked, any angle can be calibrated and pulled back in the pressing process, and the conical teeth have conical inclination, so that the centering effect is better.

The static load of the basic part of the folding machine is determined to be more than 100KG and the dynamic load is more than 400KG by the working condition during folding. Therefore, the diameter of the conical meshing gear reaching the structural strength of the conical meshing gear can be ensured only by the working condition that the diameter of the conical meshing gear is larger than 30 MM. Meanwhile, the tooth number of the rocker arm is limited by a manufacturing process, the minimum thickness of a single tooth of the rocker arm can be 2MM, and the reliability of the structural strength of the rocker arm can be guaranteed, namely, the minimum thickness of the rocker arm teeth 22 and the tooth holder teeth 23 is 2 MM. And the universal comfortable folding angle of the scooter is 70-90 degrees, and the tooth form distribution mode of the rocker arm teeth and the tooth seat teeth is as follows:

360÷U ÷2=T ；U=2T；

30 (gear diameter mm). times.pi. U > 1.5;

The fork angle between the rocker arm and the pedal when the rocker arm is folded is 70-90 degrees, (any number of 70-90 degrees)/(360 ÷ U) = Y, and Y is an integer; y × (360 ÷ T) = fold angle, U =40, 36, 30, 20, 18, 10, 8, tooth number T =20, 18, 15, 10, 9, 5, 4, fold angle 72 °, 80 °, 72 °, 72 °, 90 °.

T is the number of teeth, and T must be the integer, and U must be divided by 2, and U is the equant number also is tooth number x 2, and the equant number is exactly the tooth number that public mother tooth adds up in fact, and a face gear has protruding tooth also to have the concavity, tooth number + female tooth number = the equant number, and protruding + concavity = the equant number.

360 x pi U is greater than 2, which means the length of the line into which the circumference is divided equally by U, and the thickness of the last single tooth.

The comfort interval of the front fork angle is 70-90 degrees in the form of folding on the pedal, wherein 80 degrees is a gold value, and the comfort is worse towards the two sides. Therefore, the rocker arm teeth and the tooth seat teeth are both 10-degree 36 equally-divided 18-tooth taper bevel gears or 20-degree 18 equally-divided 9-tooth taper bevel gears. The contact surface strength is smaller as the structure strength is higher as the number of teeth is larger, so that 18 teeth are equally divided by 10 degrees 36 to be the best choice.

As shown in FIG. 8, the included angle between the side surface of each of the rocker arm teeth and the tooth seat teeth and the vertical axis of the center of the teeth is 12 degrees. Fig. 9 and 10 are cross-sectional views at angles of 8 and 16 degrees, respectively. Because the limit separation angle of the teeth and the tooth crest width have a direct relation, the die-casting material has limited strength, and in order to avoid tooth collapse and ensure durability, the tooth crest widths of the rocker arm teeth and the tooth base teeth are both more than or equal to 1.4 mm. The lowest inclination angle which is most easy to disengage is 8 degrees, the maximum inclination angle of the teeth is 16 degrees according to a formula, and then the component force structure of the net gear can enable the scene bearing to be greatly converted into axial force, so that the scene can be disengaged in the using process, and therefore 12 degrees is the best choice.

The locking mechanism is provided with a locking handle 13, the bottom of the locking handle 13 is provided with a cam 25, the locking handle 13 rotates along the axial direction of the cam 25, and the cam 25 is used for pushing to enable the teeth to be meshed and locked or the locking mechanism to be loosened to enable the teeth to be separated and unlocked. The cam 25 comprises a long shaft cambered surface and a short shaft cambered surface, the long shaft cambered surface pushes the teeth to be meshed and locked, and the short shaft cambered surface loosens the teeth to separate and unlock the teeth.

As shown in fig. 3 and 4, the rocker arm mechanism comprises a rocker arm cover 1, a rocker arm base 2, a rotating shaft 19 and an unlocking mechanism, wherein the rocker arm cover 1 is covered with the rocker arm base 2, two ends of the rotating shaft 19 are respectively arranged at the lower parts of the rocker arm cover 1 and the rocker arm base 2, and the unlocking mechanism is sleeved outside the rotating shaft 19. The unlocking mechanism comprises an unlocking spring 18 and a rotating shaft clamp spring 20, the rotating shaft clamp spring 20 is arranged on a rotating shaft 19, the unlocking spring 18 is sleeved outside the rotating shaft 19, and one end of the unlocking spring 18 abuts against the rotating shaft clamp spring 20. Shaft holes are formed in the lower portions of the rocker arm cover 1 and the rocker arm seat 2, and two ends of the rotating shaft 19 are inserted into the shaft holes.

And a clamping groove 24 is formed in one end, close to the rocker arm teeth 22, of the rotating shaft 19, and the rotating shaft clamping spring 20 is arranged on the clamping groove 24 in one end of the rotating shaft 19.

The locking mechanism comprises a folding seat 9 and a locking part, the folding seat 9 is connected with the pedal 6, the folding seat 9 is provided with the locking part, the bottom of the locking part is connected with the folding seat 9, and the locking part pushes the rocker arm teeth 22 to be meshed with the tooth seat teeth 23 forwards and locked. The locking part comprises a locking buckle cover 11, a locking buckle cover spring 12, a locking handle 13, a locking buckle seat 14 and a folding handle small shaft 21, a cam 25 at the bottom of the locking handle 13 is connected to the folding seat 9 through the folding handle small shaft 21, the locking buckle cover spring 12 is arranged at the upper part of the folding seat 9, the locking buckle cover 11 and the locking buckle seat 14 are arranged outside the locking buckle cover spring 12, and the locking buckle cover 11 and the folding seat 9 are matched to push the rocker arm teeth 22 to be meshed with the tooth seat teeth 23 forwards and locked.

If the inclined surface of the locking buckle cover 11 is matched with the inclined surface of the folding seat 9, the rocker arm teeth 22 are pushed forwards to be meshed with the tooth seat teeth 23 and locked.

The assembly process of the embodiment is as follows:

the rotating shaft clamp spring 20 is fixed on the clamping groove of the rotating shaft 19, and the unlocking spring 18 is sleeved at one end of the rotating shaft 19, abuts against the rotating shaft clamp spring 20 and is arranged at the lower parts of the rocker arm seat 2 and the rocker arm cover 1. The rocker arm cover 1 covers the rocker arm seat 2 and is screwed with a rocker arm cover locking screw 16 and a rocker arm cover locking countersunk head screw 17.

The tooth holder 4 is arranged on one side of the pedal 6 and covers the rocker arm teeth 22, tooth holder teeth 23 are arranged in the tooth holder 4, and the tooth holder screws 3 are screwed.

The locking buckle cover 11 is attached to the front surface of the locking handle 13, a locking buckle cover spring 12 is arranged in the locking buckle cover, and a locking buckle seat screw 15 is screwed after a locking buckle seat 14 is covered. The locking handle 13 is inserted into the groove of the folding seat 9, as shown in fig. 6, and the folding seat nut 10 is screwed after the folding handle small shaft 21 is inserted and sleeved on one end of the rotating shaft 19.

The folding seat nut 8 is then placed in the folding seat nut detent and the toothholder nut 5 is placed in the toothholder nut detent. Then the pedal 6 is placed on the pedal, and the pedal screw 7 is screwed on.

The working process of the example is as follows: when the locking buckle cover 11 is pulled, the locking buckle cover spring 12 is compressed to separate the clamping position covered by the locking buckle 11 from the clamping position on the folding seat 9, then the locking handle 13 is pulled and moves around the axial direction of the folding handle small shaft 21, and simultaneously the lower cam 25 of the locking handle 13 moves towards the direction of the short shaft cambered surface because of rotation, and a space for moving towards the direction of the tooth seat 4 is reserved. At this time, the unlocking spring 18 pushes the rocker arm cover 1 to drive the rocker arm seat 2 to move towards the direction of the tooth folding seat 4, and at this time, the rocker arm seat 2 is separated from the tooth seat teeth 23, so that the rocker arm is inclined towards the pedal 6 around the rotating shaft 19. When tilted to the designated position, the locking handle 13 is moved about the folding handle small shaft 21 in the direction of the rocker cover 1.

Meanwhile, the inclined surface on the locking buckle cover 11 and the inclined surface on the folding seat 9 push the locking buckle cover 11 to move outwards by friction and push the rocker arm cover 1 to compress the unlocking spring 18, namely, the long shaft cambered surface of the cam pushes the arm seat teeth 22 and the tooth seat teeth 23 to be meshed. After the locking handle 13 has reached its position-the locking flap spring 12 causes the locking flap 11 to catch the raised teeth on the folding seat 9 and fully engage for re-locking. And the unlocking mode is realized in a reverse step.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides a quick folding self-locking mechanism of scooter, its characterized in that, includes footboard, rocking arm, locking mechanical system and toothholder, the toothholder is installed in one side of footboard front end, the toothholder is equipped with the toothholder tooth, locking mechanical system installs the opposite side at the footboard front end, the rocking arm is equipped with the rocking arm tooth with toothholder tooth meshing, the rocking arm tooth makes intertooth meshing lock solid or locking mechanical system pine separation messenger intertooth separation unblock through locking mechanical system promotion with the toothholder tooth, during the intertooth separation, the rocking arm is rotatable for the footboard, the rocking arm tooth is tapering inclined plane gear with the toothholder tooth.

2. The fast folding self-locking mechanism of a scooter as claimed in claim 1, wherein the angle between the side of each tooth of the rocker arm teeth and the tooth seat teeth and the vertical axis of the tooth center is 12 degrees.

3. The fast folding self-locking mechanism for a scooter as claimed in claim 1, wherein the angle of the fork of the swing arm with respect to the pedal when folded is 70 ° to 90 °, (any number of 70 ° to 90 °)/(360 ÷ U) = Y, Y is an integer; y × (360 ÷ T) = fold angle, U =40, 36, 30, 20, 18, 10, 8, tooth number T =20, 18, 15, 10, 9, 5, 4, fold angle 72 °, 80 °, 72 °, 72 °, 90 °.

4. The self-locking mechanism for fast folding of a scooter as claimed in claim 1, wherein the locking mechanism is horizontally rotatably connected to the swing arm, and when the swing arm is folded and unfolded, the teeth of the swing arm are engaged with the teeth of the gear seat for locking.

5. The self-locking mechanism for fast folding of scooter as claimed in claim 1, wherein the locking mechanism is provided with a locking handle, the bottom of the locking handle is provided with a cam, the locking handle rotates along the axial direction of the cam, the cam is used for pushing to lock the inter-tooth meshing or release the locking mechanism to unlock the inter-tooth separation.

6. The self-locking mechanism for fast folding of scooter as claimed in claim 5, wherein the cam comprises a long axis arc surface and a short axis arc surface, the long axis arc surface pushes to lock the inter-tooth engagement, and the short axis arc surface releases to unlock the inter-tooth separation.

7. The fast folding self-locking mechanism of a scooter as claimed in claim 1, wherein the rocker arm teeth and the gear seat teeth are both 10 degrees 36 equally-divided 18-tooth taper bevel gears or 20 degrees 18 equally-divided 9-tooth taper bevel gears.

8. The fast folding self-locking mechanism of a scooter as claimed in claim 1, wherein the thickness of the rocker arm teeth and the gear seat teeth is at least 2 mm.

9. The fast folding self-locking mechanism of a scooter as claimed in claim 1, wherein the widths of the top surfaces of the rocker arm teeth and the tooth base teeth are both greater than or equal to 1.4 mm.