CN117002664A - Foldable cross rod assembly and electric scooter - Google Patents

Abstract

The application provides a foldable cross rod assembly and an electric scooter, comprising a fixed base; a knuckle; the main pin can rotate around the pin part, the engaging piece can lock the knuckle and the fixed base, further prevent the knuckle and the fixed base from rotating, when the engaging piece is separated from the second inner tooth surface of the knuckle, the knuckle can rotate relative to the fixed base, and when the meshing piece is meshed with the first inner tooth surface and the second inner tooth surface at the same time, the meshing piece locks the knuckle and the fixed base, so that the knuckle and the fixed base cannot rotate relative to each other.

Description

Foldable cross rod assembly and electric scooter

Technical Field

The application relates to the field of scooters, in particular to a foldable cross rod assembly and an electric scooter.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

The length of the electric scooter transverse rod seriously influences storage, so that the length change of the electric scooter transverse rod needs to be realized. There are two approaches in the market: the folding method comprises the steps that a folding mode is adopted, namely, a cross rod consists of a fixed rod, two movable rods and two sleeves, the movable rods are movably connected to two sides of the fixed rod through rotating shafts, and unfolding and folding are achieved through sliding of the sleeves; and secondly, the transverse rod body is folded in a rotating mode, so that the direction of the transverse rod is consistent with that of the vertical rod. Whether the cross rod is folded or the head is rotated, gaps exist between the parts in the state of incomplete locking so as to generate slight shaking, and the complete locking gaps disappear so that the rotation of the movable rod is accompanied with obvious blocking feeling, thereby seriously affecting the user experience.

It should be noted that the foregoing description of the background art is only for the purpose of providing a clear and complete description of the technical solution of the present application and is presented for the convenience of understanding by those skilled in the art. The above-described solutions are not considered to be known to the person skilled in the art simply because they are set forth in the background of the application section.

Disclosure of Invention

The application aims to provide a foldable cross rod assembly and an electric scooter.

In order to solve the technical problems, the application provides a foldable cross rod assembly, which comprises a fixed base, a first connecting rod and a second connecting rod, wherein the fixed base comprises a fixed base body, a first annular part and a second annular part which are arranged on the fixed base body along the left-right direction, the first annular part is provided with a first through hole, and the second annular part is provided with a second through hole; the steering knuckle comprises a rotating part, wherein the rotating part is clamped between a first annular part and a second annular part, the rotating part is provided with a third through hole, and the first through hole, the second through hole and the third through hole are coaxially arranged; the steering mechanism comprises a main pin, a pin part, a foldable cross rod assembly, a locking component, a first ring-shaped part, a second ring-shaped part and a locking component, wherein the pin part penetrates through a first through hole, a second through hole and a third through hole, the steering mechanism can rotate around the pin part, the foldable cross rod assembly further comprises a meshing component sleeved on the main pin, the meshing component is provided with an outer tooth surface, a first inner tooth surface is arranged in the third through hole, a second inner tooth surface is arranged in the second through hole, the first inner tooth surface and the second inner tooth surface are mutually engaged, the outer tooth surface of the meshing component can be mutually engaged with the first inner tooth surface and the second tooth surface, the meshing component can axially move along the main pin, the foldable cross rod assembly comprises a locking state and an unlocking state, when the foldable cross rod assembly is in the locking state, the meshing component is simultaneously meshed with the first inner tooth surface and the second inner tooth surface, and the rotating part of the steering joint cannot mutually rotate; the engagement member is disengaged from the second annular portion when the foldable rail assembly is in the unlocked condition.

Preferably, the foldable cross bar assembly further comprises a rotary cover, the rotary cover is located at the left side of the second annular portion and is in threaded connection with the left end of the pin portion, and the rotary cover can push the engagement piece to move to the right side in the screwing process of the rotary cover.

Preferably, the foldable cross bar assembly further comprises a first spring sleeved on the main pin, the first spring acts on the engagement member, the right side of the first spring acts on the rotating part of the steering knuckle, the first spring is compressed in the screwing process of the rotating cover, and in the unscrewing process of the rotating cover, the first spring exerts an elastic force on the engagement member to the left side, so that the engagement member is separated from the second inner tooth surface.

Preferably, the left side of the inner wall of the engagement member has a circle of step, the right side of the step forms a first supporting surface, the right side of the second annular gear forms a second supporting surface facing the left side, the left end of the first spring is propped against the first supporting surface, and the right end of the first spring is propped against the second supporting surface.

Preferably, the foldable cross bar assembly further comprises a pushing block and a fixing plate, the pushing block and the fixing plate are sleeved on the main pin, the left side of the first inner gear ring is provided with a ring of mounting surface, the fixing plate is fixed on the mounting surface through a first mounting screw, the fixing plate is provided with a avoidance hole, the right side surface of the pushing block is provided with a plurality of protruding columns, the protruding columns penetrate through the avoidance hole and are in contact with the engagement member, the rotating cover moves rightward in the screwing process of the rotating cover, the pushing block is pushed to move rightward, and the engagement member is pushed to move rightward.

Preferably, the engagement member is a conical toothed ring, and the first annular gear and the second annular gear are engaged with each other to form a conical inner tooth surface matched with the outer tooth surface of the engagement member.

Preferably, the main pin further comprises a mounting plate arranged at the right end of the pin part, and the mounting plate is fixed on the right side surface of the second annular part through a plurality of second mounting screws.

Preferably, a plurality of arc-shaped grooves extending along the axial direction are formed in the side wall of the pin part, the grooves are distributed along the circumferential direction, a second mounting hole is formed in the rotating part of the steering knuckle, the second mounting hole penetrates through the side wall of the rotating part in the radial direction, a second spring is arranged in the second mounting hole, one end of the second spring is connected with a jackscrew, the other end of the second spring is connected with a steel ball, the jackscrew is in threaded connection with the outer side end of the second mounting hole, the steel ball stretches out of the inner side end of the second mounting hole and is clamped into the grooves under the elasticity of the second spring, and when the rotating part rotates relative to the main pin, the steel ball rebounds and is separated from the grooves.

Preferably, the foldable cross bar assembly further comprises a cross bar and a vertical bar, the steering knuckle further comprises two mounting forks arranged on the rotating part, the cross bar is arranged at the top of the two mounting forks, the vertical bar is arranged at the lower side of the fixed base body, when the foldable cross bar assembly is unfolded, the cross bar is perpendicular to the vertical bar, and when the foldable cross bar assembly is folded, the cross bar is perpendicular to the vertical bar.

The application also provides an electric scooter, which comprises the foldable cross rod assembly.

By the technical scheme, the application has the following beneficial effects:

the engaging member can lock the knuckle and the fixed base, further prevent the knuckle and the fixed base from rotating, when the engaging member is separated from the second inner tooth surface of the knuckle, the knuckle can rotate relative to the fixed base, and when the engaging member is engaged with the first inner tooth surface and the second inner tooth surface at the same time, the engaging member locks the knuckle and the fixed base, so that the knuckle and the fixed base cannot rotate relative to each other.

The meshing piece is a conical tooth ring, the first inner tooth surface and the second inner tooth surface are mutually connected to form a conical inner tooth surface, and the conical tooth ring is extruded into the conical tooth surface, so that gaps among parts can be eliminated, and shaking is prevented.

The engagement piece provided by the application generates a thrust force to the steering knuckle under the pushing of the pushing block, so that the right side surface of the steering knuckle is mutually clung to the left side surface of the first annular part of the fixed base, and the friction force between the steering knuckle and the fixed base is ensured.

The rotary cover is in threaded connection with the right end part of the main pin, in the rotating process, not only can a thrust be applied to the pushing block, but also a thrust can be further applied to the fixing plate when the pushing block is pushed to be attached to the fixing plate, the fixing plate applies a thrust to the second annular part, meanwhile, the mounting plate of the main pin pushes the first annular part leftwards, so that the first annular part and the second annular part are mutually close, the knuckle is clamped between the two annular parts, the friction force between the knuckle and the fixing base is increased, and the structure of the foldable cross rod assembly is more stable. In addition, the fixing plate can prevent the rotary cover from excessively pressing the engaging piece.

The main pin is provided with a plurality of arc-shaped grooves extending along the circumferential direction of the main pin, the grooves are matched with steel balls on the steering knuckle, and clamping positions are arranged for the rotation of the steering knuckle.

Drawings

Fig. 1 is a schematic view of the structure of the foldable crossbar assembly of the present application.

Fig. 2 is an exploded view of the foldable crossbar assembly of the present application.

Fig. 3 is a schematic structural view of the rotary cover of the present application.

Fig. 4 is a schematic view of the structure of the push block and the fixing plate of the present application.

Fig. 5 is a schematic view of the structure of the engaging member of the present application.

Fig. 6 is a schematic structural view of the fixing base of the present application.

Fig. 7 is a schematic structural view of the knuckle of the present application.

Fig. 8 is a schematic view of the foldable cross bar of the present application in a folded state.

Fig. 9 is a schematic structural view of the kingpin of the present application.

Fig. 10 is a schematic cross-sectional view of a foldable crossbar of the present application in an unfolded state.

Fig. 11 is a schematic cross-sectional view of the foldable cross-bar of the present application in a folded state.

Wherein: 1. a knuckle; 2. a locking mechanism; 3. a fixed base; 4. a cross bar; 5. a vertical rod; 21. a rotary cover; 22. a first mounting screw; 23. a pushing block; 24. a fixing plate; 25. an engagement member; 26. a first spring; 27. a kingpin; 28. a second mounting screw; 211. pit; 212. an internal thread; 231. a convex column; 241. avoidance holes; 251. an outer ring gear; 252. a first support surface; 271. a pin portion; 272. a groove; 273. an external thread; 274. a mounting plate; 11. a first annular portion; 12. a first through hole; 13. a second annular portion; 14. a first ring gear; 15. a mounting surface; 16. a first mounting hole; 17. a second through hole; 31. mounting a fork; 32. a third through hole; 33. a second ring gear; 34. a second support surface; 35. a second mounting hole; 36. a rotating part; 61. a jackscrew; 62. a second spring; 63. and (5) steel balls.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that, in the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and to distinguish between similar objects, and there is no order of preference between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

As shown in the drawings, the present application provides a foldable cross bar assembly, comprising, a fixing base 3, a first ring-shaped part 11 and a second ring-shaped part 13 arranged in the left-right direction and provided on the fixing base 3, wherein the fixing base 3 comprises a fixing base 3 body, the first ring-shaped part 11 is provided with a first through hole 12, and the second ring-shaped part 13 is provided with a second through hole 17; the steering knuckle 1 comprises a rotating part 36, wherein the rotating part 36 is clamped between the first annular part 11 and the second annular part 13, the rotating part 36 is provided with a third through hole 32, and the first through hole 12, the second through hole 17 and the third through hole 32 are coaxially arranged; a kingpin 27 comprising a pin portion 271, the pin portion 271 passing through the first through hole 12, the second through hole 17 and the third through hole 32, the knuckle 1 being rotatable about the pin portion 271, the foldable rail assembly further comprising an engagement member 25 sleeved on the kingpin 27, the engagement member 25 having an outer tooth surface, the third through hole 32 having a first inner tooth surface and the second through hole 17 having a second inner tooth surface, the first inner tooth surface and the second inner tooth surface being engaged with each other, the outer tooth surface of the engagement member 25 being capable of being engaged with the first inner tooth surface and the second tooth surface, and the engagement member 25 being capable of moving axially along the kingpin 27, the foldable rail assembly comprising a locked state and an unlocked state, the engagement member 25 simultaneously engaging the first inner tooth surface and the second inner tooth surface when the foldable rail assembly is in the locked state, the rotating portion 36 of the knuckle 1 being incapable of being rotated with the second annular portion 13; the engagement member 25 is disengaged from the second annular portion 13 when the foldable rail assembly is in the unlocked condition. The engagement member 25 of the present application can lock the knuckle 1 and the fixed base 3 to further prevent the knuckle 1 and the fixed base 3 from rotating, when the engagement member 25 is disengaged from the second inner tooth surface of the knuckle 1, the knuckle 1 can rotate relative to the fixed base 3, and when the engagement member 25 is engaged with the first inner tooth surface and the second inner tooth surface at the same time, the engagement member 25 locks the knuckle 1 and the fixed base 3 so that the two cannot rotate relative to each other.

As shown in fig. 3, the foldable cross bar assembly further includes a rotary cover 21, the rotary cover 21 is located at the left side of the second annular portion 13 and is screwed with the left end of the pin portion 271, and the rotary cover 21 can push the engaging member 25 to move to the right side during the screwing process of the rotary cover 21. The surface of the rotary cover 21 is provided with a plurality of pits 211, which are convenient to screw.

The foldable cross rod assembly further comprises a first spring 26 sleeved on the main pin 27, the first spring 26 acts on the engagement member 25, the right side of the first spring 26 acts on the rotating portion 36 of the knuckle 1, the first spring 26 is compressed in the process of screwing the rotating cover 21, and the first spring 26 applies a leftward elastic force to the engagement member 25 in the process of screwing the rotating cover 21, so that the engagement member 25 is separated from the second inner tooth surface. In a preferred embodiment, the left side of the inner wall of the engaging member 25 has a step, the right side of the step forms a first supporting surface 252, the right side of the second ring gear 33 forms a second supporting surface 34 facing to the left, the left end of the first spring 26 abuts against the first supporting surface 252, and the right end of the first spring 26 abuts against the second supporting surface 34.

As shown in fig. 4, the foldable cross rod assembly further includes a pushing block 23 and a fixing plate 24, the pushing block 23 and the fixing plate 24 are sleeved on the main pin 27, the left side of the first ring gear 14 is provided with a circle of mounting surface 15, the fixing plate 24 is fixed on the mounting surface 15 through a first mounting screw 22, the fixing plate 24 is provided with a avoidance hole 241, the right side surface of the pushing block 23 is provided with a plurality of protruding columns 231, the protruding columns 231 penetrate through the avoidance hole 241 and contact with the engaging piece 25, and in the screwing process of the rotating cover 21, the rotating cover 21 moves rightward to push the pushing block 23 to move rightward, and the pushing block 23 pushes the engaging piece 25 to move rightward. The engagement piece 25 of the application generates a thrust to the knuckle 1 under the pushing of the pushing block 23, so that the right side surface of the knuckle 1 and the left side surface of the first annular part 11 of the fixed base 3 are mutually abutted, and the friction force between the knuckle 1 and the fixed base 3 is ensured. The rotary cover 21 is in threaded connection with the right end part of the main pin 27, in the rotating process, not only can a pushing force be applied to the pushing block 23, but also a pushing force can be further applied to the fixing plate 24 when the pushing block 23 is pushed to be attached to the fixing plate 24, the fixing plate 24 applies a pushing force to the second annular part 13, meanwhile, the mounting plate 274 of the main pin 27 pushes the first annular part 11 leftwards to enable the first annular part 11 and the second annular part 13 to be close to each other, the knuckle 1 is clamped between the two annular parts, friction force between the knuckle 1 and the fixing base 3 is increased, and the structure of the foldable cross rod assembly is more stable. In addition, the fixing plate 24 can also prevent the rotary cover 21 from being excessively pressed against the engaging piece 25.

The pushing block 23 have 4 convex columns 231, dodge hole 241 have four apex angles, 4 convex columns 231 pass from 4 apex angles respectively, the body of pushing block 23 then can't pass dodge hole 241, be blocked in the left side of fixed plate 24, 4 apex angles not only can play the effect of direction, also can avoid pushing block 23's circumference rotation, at the body of pushing block 23 by rotatory lid 21 in-process that promotes to the right, pushing block 23 moves to the right relative to fixed plate 24, when pushing block 23's body and fixed plate 24 are mutually laminated, pushing block 23 applys a right pressure to fixed plate 24, makes first annular portion 11 and second annular portion 13 be close to each other, further press from both sides tight knuckle 1, guaranteed electric scooter's stability in the use.

As shown in fig. 5, the engaging member 25 is a conical toothed ring, and the first ring gear 14 and the second ring gear 33 are engaged with each other to form a conical inner tooth surface matching with the outer tooth surface of the engaging member 25. The conical tooth ring is extruded into the conical tooth surface, so that gaps among parts can be eliminated, and shaking is prevented.

As shown in fig. 9, the master pin 27 further includes a mounting plate 274 disposed at the right end of the pin portion 271, and the mounting plate 274 is fixed to the right side surface of the second annular portion 13 by a plurality of second mounting screws 28. The side wall of the pin portion 271 is provided with a plurality of arc-shaped grooves 272 extending along the axial direction, the grooves 272 are distributed along the circumferential direction, the rotating portion 36 of the steering knuckle 1 is provided with a second mounting hole 35, the second mounting hole 35 penetrates through the side wall of the rotating portion 36 along the radial direction, a second spring 62 is arranged in the second mounting hole 35, one end of the second spring 62 is connected with a jackscrew 61, the other end of the second spring 62 is connected with a steel ball 63, the jackscrew 61 is connected with the outer side end of the second mounting hole 35 in a threaded manner, the steel ball 63 stretches out of the inner side end of the second mounting hole 35 and is clamped into the groove 272 under the elasticity of the second spring 62, and when the rotating portion 36 rotates relative to the main pin 27, the steel ball 63 rebounds and is separated from the groove 272.

As shown in fig. 1 and 8, the foldable cross bar assembly further includes a cross bar 4 and a vertical bar 5, the steering knuckle 1 further includes two mounting forks 31 disposed on the rotating portion 36, the cross bar 4 is mounted on top of the two mounting forks 31, the vertical bar 5 is disposed on the lower side of the body of the fixed base 3, when the foldable cross bar assembly is unfolded, the cross bar 4 is perpendicular to the vertical bar 5, and when the foldable cross bar assembly is folded, the cross bar 4 is perpendicular to the vertical bar 5. The foldable cross rod assembly is connected with the electric scooter, a brand new folding mode is provided, the cross rod 4 can be integrally rotated to a position parallel to the vertical rod 5 through the locking mechanism 2, so that the cross rod 4 does not need to be folded, and can be a complete rod-shaped object, and the structure is more stable.

The application also provides an electric scooter, which comprises the foldable cross rod assembly. The above-described embodiments are merely preferred embodiments for fully explaining the present application, and the scope of the present application is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present application, and are intended to be within the scope of the present application. The protection scope of the application is subject to the claims.

Claims (10)

1. A foldable cross bar assembly, comprising,

the fixed base comprises a fixed base body, a first annular part and a second annular part, wherein the first annular part and the second annular part are arranged on the fixed base body along the left-right direction, the first annular part is provided with a first through hole, and the second annular part is provided with a second through hole;

the steering knuckle comprises a rotating part, wherein the rotating part is clamped between a first annular part and a second annular part, the rotating part is provided with a third through hole, and the first through hole, the second through hole and the third through hole are coaxially arranged;

the main pin comprises a pin part, the pin part passes through the first through hole, the second through hole and the third through hole, the steering gear can rotate around the pin part,

it is characterized in that the method comprises the steps of,

the foldable cross bar assembly also comprises an engagement member sleeved on the main pin, the engagement member is provided with an outer tooth surface,

a first inner tooth surface is arranged in the third through hole, a second inner tooth surface is arranged in the second through hole, the first inner tooth surface and the second inner tooth surface are mutually connected,

the outer tooth surface of the engagement member is capable of intermesh with the first inner tooth surface and the second tooth surface, and the engagement member is capable of moving axially along the kingpin,

the foldable crossbar assembly includes a locked state and an unlocked state,

when the foldable cross rod assembly is in a locking state, the meshing piece is meshed with the first inner tooth surface and the second inner tooth surface at the same time, and the rotating part and the second annular part of the steering knuckle cannot rotate mutually;

the engagement member is disengaged from the second annular portion when the foldable rail assembly is in the unlocked condition.

2. The foldable crossbar assembly of claim 1, further comprising a swivel cap positioned on the left side of the second annular portion and threadably coupled to the left end of the pin portion, the swivel cap being capable of pushing the engagement member to move to the right side during tightening of the swivel cap.

3. The foldable crossbar assembly of claim 2, further comprising a first spring sleeved on the main pin, the first spring acting on the engagement member, the right side of the first spring acting on the rotating portion of the knuckle, the first spring being compressed during tightening of the rotating cap, the first spring exerting a leftward force on the engagement member during unscrewing of the rotating cap, causing the engagement member to disengage from the second inner tooth surface.

4. The foldable crossbar assembly of claim 3, wherein the left side of the inner wall of the engagement member has a ring of steps, the right side of the steps forms a first support surface, the right side of the second ring gear forms a second support surface facing the left side, the left end of the first spring abuts against the first support surface, and the right end of the first spring abuts against the second support surface.

5. The foldable cross bar assembly of claim 4, further comprising a push block and a fixing plate, wherein the push block and the fixing plate are sleeved on the main pin,

the left side of the first annular gear is provided with a ring mounting surface, the fixing plate is fixed on the mounting surface through a first mounting screw, the fixing plate is provided with a avoidance hole,

the right side of the pushing block is provided with a plurality of convex columns, the convex columns penetrate through the avoidance holes and are in contact with the meshing piece, in the screwing process of the rotating cover, the rotating cover moves rightwards to push the pushing block to move rightwards, and the pushing block pushes the meshing piece to move rightwards.

6. The foldable crossbar assembly of claim 5, wherein the engagement member is a conical ring gear, and the first ring gear and the second ring gear are engaged with each other to form a conical inner tooth surface that mates with the outer tooth surface of the engagement member.

7. The foldable cross bar assembly of claim 1, wherein the kingpin further comprises a mounting plate disposed at a right end of the pin portion, the mounting plate being secured to a right side of the second annular portion by a plurality of second mounting screws.

8. The foldable cross bar assembly of claim 7, wherein a plurality of arc-shaped grooves extending along the axial direction are formed in the side wall of the pin portion, the grooves are distributed along the circumferential direction, a second mounting hole is formed in the rotating portion of the steering knuckle, the second mounting hole penetrates through the side wall of the rotating portion in the radial direction, a second spring is arranged in the second mounting hole, one end of the second spring is connected with a jackscrew, the other end of the second spring is connected with a steel ball, the jackscrew is connected with the outer side end of the second mounting hole in a threaded mode, the steel ball stretches out of the inner side end of the second mounting hole to be clamped into the grooves under the elastic force of the second spring, and when the rotating portion rotates relative to the main pin, the steel ball rebounds and is separated from the grooves.

9. The foldable cross bar assembly of claim 1, wherein the foldable cross bar assembly further comprises a cross bar and a vertical bar, the steering knuckle further comprises two mounting forks provided on the rotating part, the cross bar is mounted on the top of the two mounting forks, the vertical bar is provided on the lower side of the fixing base body, when the foldable cross bar assembly is unfolded, the cross bar is perpendicular to the vertical bar, and when the foldable cross bar assembly is folded, the cross bar is perpendicular to the vertical bar.

10. An electric scooter comprising a foldable rail assembly as claimed in any one of claims 1 to 9.