CN216185754U

CN216185754U - Folding handlebar

Info

Publication number: CN216185754U
Application number: CN202122753707.8U
Authority: CN
Inventors: 张立强
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-04-05
Anticipated expiration: 2031-11-10

Abstract

The utility model relates to the technical field of bicycle accessories, and particularly discloses a folding handlebar which is easy to fold and unfold and has a stable structure after being unfolded, comprising a vertical frame, a pressure plate component, a handlebar component and a locking component, wherein the pressure plate component comprises a first pressure plate and a second pressure plate which are connected with the vertical frame; the handlebar assembly comprises a first rotating body, a first handle and a movable shaft, wherein the first rotating body is in pivot connection with the first pressing plate and the second pressing plate and drives the first handle to rotate; the locking assembly comprises a shaft lever penetrating through the first pressure plate and the second pressure plate, one end of the shaft lever is in limit abutting joint with the first pressure plate, the other end of the shaft lever is provided with a cam, and the cam extrudes the second pressure plate when rotating along with the shaft lever or rotating relative to the shaft lever so that the first pressure plate and the second pressure plate press the first rotating body; the first pressure plate and the second pressure plate are provided with guide grooves for limiting the moving track of the movable shaft, or the first rotating body is provided with guide grooves; the first rotating body is provided with a bayonet communicated with the guide groove and embedded with the movable shaft.

Description

Folding handlebar

Technical Field

The utility model relates to the technical field of vehicles, in particular to a folding handlebar.

Background

Handlebars are an important component part of a bicycle for controlling the riding direction and providing a grip for the rider. Because people require constantly to promote to the bicycle, the bicycle gradually to miniaturization, light-duty development, from this, produced and folded bicycle that can fold and accomodate and be convenient for the transportation. At present, handlebars of a folding bicycle are mainly fixed through bolts or buckles after being rotated, folded and unfolded, the former is complex to operate, and the folding and unfolding difficulty of the handlebars is increased; the latter is poor in stability, and in the transportation process, the handlebars are easy to loosen and puncture a packaging box or a packaging box, and are easy to damage and scratch personnel; in the riding process, safety accidents are easily caused by the looseness of the handlebar, and the life safety of riders is threatened.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a folding handlebar that is easy to fold and unfold and has a stable structure after being unfolded, in order to solve the technical problems of great difficulty in folding and unfolding and poor structural stability.

A folding handlebar comprising:

the vertical frame is used for being connected with a front frame or a front fork vertical tube of the bicycle;

the pressing plate assembly comprises a first pressing plate and a second pressing plate which are oppositely arranged at one end of the vertical frame far away from the front frame and are directly or indirectly connected with the vertical frame, and the first pressing plate and the second pressing plate jointly form a first mounting position and a second mounting position at two side sides of the vertical frame;

the handlebar assembly comprises a first rotating body, a first handle fixedly connected with the first rotating body and a movable shaft for limiting or adjusting the rotating position of the first rotating body relative to a first pressing plate and a second pressing plate through position movement, the first rotating body is embedded in the first installation position and is respectively in pivot connection with the first pressing plate and the second pressing plate, a pivot hole is formed in the first rotating body, a shaft pin penetrating through the pivot hole, the first pressing plate and the second pressing plate is arranged on the first rotating body, and the first rotating body rotates by taking the shaft pin as a center under the driving of the first handle so as to adjust the unfolding or folding angle of the first handle relative to the first pressing plate; and

the locking assembly comprises a shaft rod penetrating through the first pressure plate and the second pressure plate, one end of the shaft rod is in limit abutting joint with the first pressure plate through a nut mechanism, the other end of the shaft rod is provided with a cam capable of rotating along with the shaft rod or rotating relative to the shaft rod, the distance between the nut mechanism and the second pressure plate is adjustable so as to adjust the pressure borne by the first pressure plate and the second pressure plate, and the cam extrudes the second pressure plate when rotating along with the shaft rod or rotating relative to the shaft rod so that the first pressure plate and the second pressure plate jointly compress the first rotating body;

the first pressure plate and the second pressure plate are respectively provided with a guide groove for limiting the moving track of the movable shaft, or the first rotating body is provided with a guide groove for limiting the moving track of the movable shaft; the first rotating body is provided with a bayonet communicated with the guide groove and used for embedding the movable shaft, and the movable shaft is clamped in the bayonet after the first handle is folded or unfolded.

In one embodiment, the shaft rod and the movable shaft are coaxially arranged and integrally formed, or the first rotating body is pivotally connected with the first pressure plate and the second pressure plate through the shaft rod respectively.

In one embodiment, the foldable handlebar further comprises a torsion spring fixed between the first pressing plate and the second pressing plate, one end of the torsion spring abuts against the vertical frame or the first pressing plate or the second pressing plate or the first rotating body, and the other end of the torsion spring abuts against the movable shaft and is used for providing restoring force for the movable shaft to be clamped into the bayonet.

In one embodiment, when the first pressing plate and the second pressing plate are respectively provided with the guide grooves, the guide grooves are strip-shaped grooves extending along the length direction of the first pressing plate, and the side surface of the ring of the first rotating body is provided with the bayonet.

In one embodiment, the cross section of the bayonet is in a circular arc, trapezoid or wedge-shaped structure, and the shape of the outer surface of the movable shaft is matched with the shape of the inner surface of the bayonet.

In one embodiment, the side face of the ring of the first rotating body is provided with one bayonet or a plurality of bayonets at intervals, and when the number of the bayonets is one, the bayonets, the pivot holes and the first handle are positioned on the same straight line; when the number of the bayonets is larger than or equal to two, the two adjacent bayonets respectively form a preset angle with a connecting line of the pivot holes, and the preset angle is used for limiting the unfolding or folding angle of the handlebar.

In one embodiment, when the first rotating body is provided with the guide slot, the guide slot is an arc-shaped slot which takes the pivot hole as a center and extends along the circumferential direction of the pivot hole, the bayonet is located at one end of the arc-shaped slot and is communicated with the guide slot, and the movable shaft sequentially penetrates through the first pressure plate, the first rotating body and the second pressure plate and moves in the guide slot.

In one embodiment, the nut mechanism includes a first nut that is screwed with the movable shaft, and a second nut that abuts and presses the first nut, and the second nut is screwed with the movable shaft.

In one embodiment, the cam is provided with an inclined surface structure and a poking part for being grasped by a person, and when the poking part is twisted and the inclined surface low point is abutted against the second pressing plate, the locking assembly is in an unlocking state; when the toggle part is twisted to enable the high point of the inclined plane to abut against the second pressing plate, the locking assembly is in a locking state; a pressing sheet is arranged between the shaft lever and the cam, and when the toggle part is twisted and the low point of the inclined plane is abutted against the pressing sheet, the locking assembly is in a loosening state; when the toggle part is twisted to enable the high point of the inclined plane to abut against the pressing sheet, the locking assembly is in a locking state.

In one embodiment, the stand is provided with a limiting groove, and the stand is in sliding fit with a front frame or a front fork vertical tube of a bicycle through the limiting groove so as to adjust the horizontal height of the folding handlebar.

The folding handlebar of the utility model is implemented by adjusting the distance between the first pressure plate and the second pressure plate through the locking assembly with the movable shaft and the cam so as to press or release the first rotating body, thus, when the first rotating body is required to be adjusted to fold or unfold the first handle, only the first rotating body needs to be released for operation; when the first rotator of needs locking prevents that the first in command from rocking, only need compress tightly first rotator can, this handlebar adjustment mode is simple, easily the operation, after the handlebar is folded or is expanded, first rotator is compressed tightly, and the handlebar is difficult for rocking to improve the security of bicycle transportation and riding, be favorable to promoting the market competition of product.

Drawings

FIG. 1 is a schematic view of the folding handlebar with the structure of the utility model expanded;

FIG. 2 is a schematic view of the folded handlebar in accordance with an embodiment of the present invention;

FIG. 3 is a schematic structural view of a folding handlebar in accordance with an embodiment of the present invention;

FIG. 4 is a schematic structural view of a folding handlebar in another embodiment of the present invention;

FIG. 5 is a schematic view of the platen assembly and locking assembly in cooperation with one embodiment of the present invention;

FIG. 6 is a schematic view of the first rotating body coupled to the first handle according to one embodiment of the present invention;

FIG. 7 is a schematic view of the engagement of the locking assembly with the first and second pressure plates in an embodiment of the present invention;

FIG. 8 is an enlarged partial view of the portion A in the embodiment of FIG. 1;

FIG. 9 is a schematic view showing a structure in which a first rotating body is coupled to a first handle according to another embodiment of the present invention;

FIG. 10 is a schematic view of the folded handlebar of the present invention after it is unfolded;

FIG. 11 is a schematic view showing the connection of the first rotating body and the first handle in the embodiment of FIG. 10;

fig. 12 is a schematic structural view illustrating a connection of a first rotating body and a first handle according to still another embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

The present invention discloses a folding handlebar 10 that is easy to fold and unfold and has a stable structure after being unfolded, the folding handlebar 10 is used for a folding bicycle, and is installed on a front frame of the folding bicycle when in use, so as to provide a riding direction operating position of the folding bicycle and support the hands and the upper body of a rider. Of course, the foldable handlebar 10 of the present invention may also be used on scooters, electric cars, and other vehicles requiring handlebars.

Referring to fig. 1 and 2, the foldable handlebar 10 includes a stand 100, a pressing plate assembly 200, a handlebar assembly 300 and a locking assembly 400, wherein the stand 100 is used for connecting with a front frame or a front fork stem of a bicycle, and the pressing plate assembly 200 includes a first pressing plate 210 and a second pressing plate 220 which are oppositely disposed at one end of the stand 100 far away from the front frame and are directly or indirectly connected to the stand 100. Preferably, the stand 100 is slidably engaged with a front frame or a front fork stem of a bicycle to adjust the horizontal height of the foldable handlebar 10, so that the horizontal height of the foldable handlebar 10 is adapted to the height of a rider, thereby improving the comfort of the rider during riding. Optionally, the vertical frame 100 can be set to be an inverted L-shaped structure, and includes a vertical portion connected to the front frame of the bicycle in a sliding manner and a horizontal portion connected to the vertical portion, and an included angle between the horizontal portion and the vertical portion is greater than 90 degrees, i.e., an obtuse angle is set. The stand 100 may be an integrally formed column structure, or may be composed of two vertical plates. First clamp plate 210 and second clamp plate 220 are installed respectively in the top bottom of lateral part, and the length of first clamp plate 210 and second clamp plate 220 all is greater than the width of lateral part, and the width of this lateral part is when riding passerby's bicycle promptly, lies in the size of riding passerby's left and right hands direction on the grudging post 100. In order to facilitate the assembly and disassembly of the handlebars, the distance between the first pressing plate 210 and the second pressing plate 220 is adjustable, the first pressing plate 210 and the second pressing plate 220 form a first mounting position 230 and a second mounting position 240 on two sides of the stand 100, and the first mounting position 230 and the second mounting position 240 are used for mounting the left handlebar and the right handlebar respectively. It should be noted that, in this embodiment, the adjustable distance between the first pressure plate 210 and the second pressure plate 220 further includes that the first pressure plate 210 and the second pressure plate 220 can deform under different pressures to cause a change in the distance therebetween, because in actual operation, the installation distance between the first pressure plate 210 and the second pressure plate 220 does not change, but in the locking process, the locking assembly 400 generates pressure on the first pressure plate 210 and the second pressure plate 220 to cause a deformation of the first pressure plate 210 and the second pressure plate 220, so that the distance between the two is reduced, and further generates pressure on the first rotating body 310 of the handlebar, thereby generating a pressing and fixing effect on the movable shaft 410, the first rotating body 310, and the first handlebar 320. When released, the pressure is removed, and the first pressing plate 210 and the second pressing plate 220 are deformed again, so that the movable shaft 410 can be moved and the first rotating body 310 and the first handle bar 320 can be rotated.

Optionally, referring to fig. 3 and 4, in an embodiment, the first pressing plate 210 and the second pressing plate 220 may be simultaneously disposed on the same side of the stand 100 and symmetrically mounted on the stand 100, and the first pressing plate 210 and the second pressing plate 220 are connected by a shaft, or the first pressing plate 210 and the second pressing plate 220 are integrated devices directly connected or indirectly connected. The first pressing plate 210 and the second pressing plate 220 together form a first mounting position 230 and a second mounting position 240 on both sides of the stand 100, and the first mounting position 230 and the second mounting position 240 are used for mounting a left handlebar and a right handlebar, respectively.

The handle bar assembly 300 includes a first rotating body 310, a first handle 320 fixedly coupled to the first rotating body 310, and a movable shaft 410 defining or adjusting a rotational position of the first rotating body 310 with respect to the first and second

pressing plates

210 and 220 by a position movement, and the first rotating body 310 is fitted in the first mounting position 230 and pivotally coupled to the first and second

pressing plates

210 and 220, respectively. Referring to fig. 1 and 6, in an embodiment, the first rotator 310 is provided with a pivot hole 312 and a shaft pin 313 penetrating the pivot hole 312, the first pressing plate 210 and the second pressing plate 220, and the first rotator 310 rotates around the shaft pin 313 under the driving of the first handle 320 to adjust the unfolding or folding angle of the first handle 320 relative to the first pressing plate 210. It should be noted that, in the present embodiment, the second handle (i.e., the right handle) and the first handle 320 (i.e., the left handle) are structurally symmetrical, and the arrangement manner of the second handle in the second installation position 240 is the same as the arrangement manner of the first handle 320 in the first installation position 230, so the structure of the foldable handle 10 and the unfolding and folding processes thereof are described only by the arrangement manner of the first handle 320 in the first installation position 230, and the structure and arrangement manner of the second handle can refer to the structure and arrangement manner of the first handle 320, which is not described herein again.

Referring to fig. 1 and 5, the locking assembly 400 includes a shaft rod penetrating through the first pressing plate 210 and the second pressing plate 220, one end of the shaft rod is in limit abutment with the first pressing plate 210 through a nut mechanism 420, the other end of the shaft rod is provided with a cam 440 capable of rotating along with or relative to the shaft rod, a distance between the nut mechanism 420 and the second pressing plate 220 is adjustable to adjust pressures applied to the first pressing plate 210 and the second pressing plate 220, and the cam 440 presses the second pressing plate 220 when rotating along with or relative to the shaft rod, so that the first pressing plate 210 and the second pressing plate 220 press the first rotating body 310 together. Of course, two cams 440 may be disposed at two ends of the shaft, and the two cams 440 may be used to adjust the pressure applied to the first pressing plate 210 and the second pressing plate 220.

Referring to fig. 7, the cam 440 is provided with a slope structure and a toggle portion 450 for being grasped by a person, and when the toggle portion 450 is twisted and the slope low point abuts against the second pressing plate 220, the locking assembly 400 is in an unlocked state; when the toggle part 450 is twisted to make the high point of the inclined plane abut against the second pressure plate 220, the locking assembly 400 is in a locking state; a pressing piece 460 is arranged between the shaft lever and the cam 440, and when the toggle part 450 is twisted and the low point of the inclined plane is abutted against the pressing piece 460, the locking assembly 400 is in a loosening state; when the toggle portion 450 is twisted to make the high point of the inclined surface abut against the pressing piece 460, the locking assembly 400 is in a locking state. Optionally, when two cams 440 are respectively disposed at two ends of the shaft, the two toggle parts 450 of the two cams 440 can be connected into a whole, so as to facilitate one-key operation of the two toggle parts 450.

Specifically, the inclined plane structure is a spiral plane, and the pressing piece 460 or the second pressing plate 220 is provided with another spiral plane adapted to the inclined plane structure of the cam 440, in other words, the heights of different portions of the cam 440 in the circumferential direction are different, so that when the toggle portion 450 drives the cam 440 to rotate relative to the pressing piece 460 or the second pressing plate 220, the abutting of different positions on the cam 440 and the pressing piece 460 or the second pressing plate 220 will change the pressure of the cam 440 on the second pressing plate 220, thereby achieving the purpose of adjusting the pressure applied to the second pressing plate 220.

In another embodiment, a section of the shaft rod away from the nut mechanism 420 is axially and vertically fixed with a rotating shaft 430, the cam 440 is sleeved on the rotating shaft 430, a pressing piece 460 is arranged on the shaft rod between the second pressing plate 220 and the rotating shaft 430, a distance between the nut mechanism 420 and the pressing piece 460 is adjustable to adjust the pressure applied to the first pressing plate 210 and the second pressing plate 220, and the cam 440 presses the pressing piece 460 when rotating relative to the rotating shaft 430, so that the first pressing plate 210 and the second pressing plate 220 press the first rotating body 310 together. Further, the pressing piece 460 is provided with a concave arc surface 461 for limiting the position of the cam 440, the cam 440 includes a large diameter portion and a small diameter portion located at two sides of the center of the cam 440, and the cam 440 presses the pressing piece 460 when rotating relative to the rotating shaft 430, so that the first pressing plate 210 and the second pressing plate 220 press the first rotating body 310 together. Specifically, when the small diameter portion of the cam 440 abuts against the concave arc surface 461, the pressure of the cam 440 on the pressing piece 460 is small, the pressure of the pressing piece 460 and the nut mechanism 420 on the first pressing plate 210 and the second pressing plate 220 is small, and the constraint force applied to the first rotating body 310 is small, so that the positions of the first rotating body 310 and the first handle 320 can be adjusted. When the large diameter portion of the cam 440 is adjacent to the concave arc surface 461, the pressure of the cam 440 on the pressing piece 460 is increased, thereby pressing the first pressing plate 210 and the second pressing plate 220, so that the first rotating body 310 is pressed, the stability of the first handle 320 after being unfolded or folded is improved, and the handle bar is prevented from being loosened.

In order to further improve the locking effect of the locking assembly 400 on the first rotating body 310 and prevent the first rotating body 310 from loosening after locking, the utility model further provides a bayonet 311 for being matched with the movable shaft 410 on the first rotating body 310, the movable shaft 410 can move or rotate relative to the first rotating body 310 to be clamped into the bayonet 311 or separated from the bayonet 311, and when the movable shaft 410 is clamped into the bayonet 311, the first rotating body 310 is limited in the plane of the first pressing plate 210. Referring to fig. 8 and 11, in the present embodiment, two moving manners of the movable shaft 410 are provided, specifically including a first pressing plate 210 and a second pressing plate 220 respectively provided with a guiding slot 500 for defining a moving track of the movable shaft 410, or a first rotating body 310 provided with a guiding slot 500 for defining a moving track of the movable shaft 410. In the case of providing the guide groove 500, the first rotation body 310 is formed with a bayonet 311 communicating with the guide groove 500 and receiving the movable shaft 410, and after the first handle 320 is folded or unfolded, the movable shaft 410 is caught at the bayonet 311 to prevent the first handle 320 from being shaken.

In the present invention, the shaft rod is coaxially disposed with the movable shaft 410 and integrally formed, or the first rotating body 310 is pivotally connected to the first pressing plate 210 and the second pressing plate 220 through the shaft rod. That is, the shaft may be attached to the shaft pin 313 as the rotation center of the first rotating body 310, or may be provided on the movable shaft 410 and share the same shaft with the movable shaft 410. In this embodiment, in order to increase the mobility or flexibility of the locking assembly 400, an outer tube may be sleeved on the shaft, and the outer tube may move or rotate relative to the shaft of the locking assembly 400.

Referring to fig. 1, 6 and 8, when the first pressing plate 210 and the second pressing plate 220 are respectively provided with the guide groove 500, the guide groove 500 is a strip-shaped groove extending along the length direction of the first pressing plate 210, the side surface of the first rotating body 310 is provided with the bayonet 311, in this case, the movable shaft 410 is located between the stand 100 and the first rotating body 310, and the movable shaft 410 moves in the guide groove 500 to realize the engagement and disengagement of the movable shaft 410 and the bayonet 311, so as to limit the movement of the first rotating body 310 in the rotation plane thereof.

The side surface of the ring of the first rotating body 310 is provided with one bayonet 311 or a plurality of bayonets 311 at intervals, when the number of the bayonets 311 is one, the bayonet 311, the pivot hole 312 and the first handle 320 are positioned on the same straight line; when the number of the bayonets 311 is greater than or equal to two, two adjacent bayonets 311 respectively form a preset angle with a connecting line of the pivot holes 312, so as to limit the unfolding or folding angle of the handlebar. Specifically, referring to fig. 9, when the number of the bayonets 311 is two, a connection line between one bayonet 311 and the pivot hole 312 is perpendicular to a connection line between the other bayonet 311 and the pivot hole 312. In this embodiment, only one bayonet 311 is disposed on the circumferential side of the first rotating body 310, and the bayonet 311, the pivot hole 312 and the first handle 320 are located on the same line, so that when the first rotating body 310 rotates until the bayonet 311 is communicated with the guide groove 500 and the movable shaft 410 is inserted into the bayonet 311, the first handle 320 and the guide groove 500 are located on the same line, that is, after the first handle 320 is completely unfolded, the first rotating body 310 is difficult to further rotate under the cooperation of the bayonet 311 and the movable shaft 410, thereby ensuring the stability of the structure of the unfolded first handle 320.

In another embodiment, two or more bayonets 311 are spaced apart from each other on the side of the ring of the first rotating body 310, and a line connecting one of the bayonets 311 and the pivot hole 312 forms an angle with a line connecting the other one of the bayonets 311 and the pivot hole 312, for example, in fig. 6, when two bayonets 311 are spaced apart from each other, the two bayonets 311 form an angle of 90 degrees with the line connecting the pivot holes 312. Further, a line connecting one of the bayonets 311 with the hinge hole 312 and the first handle 320 is a straight line, and a line connecting the other bayonet 311 with the hinge hole 312 is perpendicular to the straight line, so that when the first handle 320 is completely unfolded, one of the bayonets 311 communicates with the guide groove 500, so that the movable shaft 410 is inserted into the bayonet 311 and defines the position of the first rotation body 310; when the first handle 320 is completely folded, the other bayonet 311 is communicated with the guide groove 500 and enables the movable shaft 410 to be embedded in the bayonet 311, so that the folded first handle 320 is prevented from being ejected from the first mounting position 230, and the reliability and safety of folding are ensured. It should be noted that, when the number of the bayonets 311 is greater than or equal to two, the stability of the handlebar adjustment can be improved by increasing the number of the bayonets 311.

Referring to fig. 1, fig. 5 and fig. 8, the foldable handlebar 10 further includes a torsion spring 600 fixed between the first pressing plate 210 and the second pressing plate 220, one end of the torsion spring 600 abuts against the upright frame 100, the first pressing plate 210, the second pressing plate 220 or the first rotating body 310, and the other end of the torsion spring 600 abuts against the movable shaft 410 for providing a restoring force for the movable shaft 410 to be inserted into the bayonet 311. Specifically, when the first rotating body 310 needs to be rotated, the toggle part 450 on the cam 440 is firstly pulled to make the small diameter part of the cam 440 contact with the concave arc surface 461, so as to release the restriction of the pressing piece 460 on the second pressing plate 220, and then the movable shaft 410 is pulled to make the movable shaft 410 leave the bayonet 311, in the process, the movable shaft 410 presses the torsion spring 600, so that the torsion spring 600 is deformed; after the position of the first rotating body 310 is adjusted, the movable shaft 410 is released, the torsion spring 600 recovers the elastic deformation, and the movable shaft 410 is driven by the torsion spring 600 to be embedded into the bayonet 311 or abut against the outer wall of the first rotating body 310, so that the purpose of resetting the movable shaft 410 is achieved.

Further, the cross section of the bayonet 311 is in a circular arc shape, a trapezoid shape or a wedge shape, and the shape of the outer surface of the movable shaft 410 is adapted to the shape of the inner surface of the bayonet 311. That is, when the cross section of the bayonet 311 is in the circular arc structure, the inner surface of the bayonet 311 is an arc surface, and the outer surface of the movable shaft 410, which is engaged with the bayonet 311, is also an arc surface; when the cross section of the bayonet 311 is a trapezoid structure, the cross section of the outer surface of the movable shaft 410, which is matched with the bayonet 311, is also a trapezoid structure; in the same way, it can be inferred that the cross section of the bayonet 311 is in a wedge-shaped structure, and the structural design is adopted to increase the contact area between the inner surface of the bayonet 311 and the outer surface of the movable shaft 410 and improve the stability of the fit between the inner surface and the outer surface.

Referring to fig. 10 and 11, when the first rotating body 310 is provided with the guiding groove 500, the guiding groove 500 is an arc-shaped groove which takes the pivot hole 312 as a center and extends along the circumferential direction of the pivot hole 312, the bayonet 311 is located at one end of the arc-shaped groove and is communicated with the guiding groove 500, and the movable shaft 410 sequentially penetrates through the first pressing plate 210, the first rotating body 310 and the second pressing plate 220 and moves in the guiding groove 500. In this embodiment, only one bayonet 311 is formed on the first rotating body 310, and in this case, the movable shaft 410 actually penetrates the first rotating body 310 and moves in the guide groove 500 provided in the first rotating body 310, and in this structure, the pivot hole 312 is located between the stand 100 and the movable shaft 410.

Referring to fig. 12, in an embodiment, the circumferential angle of the guide groove 500 is 90 degrees, and two ends of the guide groove 500 are respectively provided with a bayonet 311. Specifically, one of the bayonets 311 communicating with the guide groove 500 may be disposed on a line connecting the pivot hole 312 and the first handle 320, and a line connecting the other bayonet 311 and the pivot hole 312 and a line connecting the pivot hole 312 and the first handle 320 form an angle, optionally, may be disposed at 90 degrees, so that when the first handle 320 is completely unfolded, the movable shaft 410 is embedded in one of the bayonets 311 to prevent the unfolded first handle 320 from being loosened; when the first handle 320 is completely folded, the movable shaft 410 is inserted into the other bayonet 311, preventing the folded first handle 320 from popping out, so as to improve the stability and safety of the folded structure of the handlebar.

In the foldable handlebar 10 of the present invention, the nut mechanism 420 for limiting the position of the movable shaft 410 may be a common nut or a cover plate to prevent the movable shaft 410 from moving the first pressing plate 210 to fall off, or may be another abutting anti-falling mechanism. Alternatively, in the present embodiment, the nut mechanism 420 may be directly configured as a nut structure integrated with the movable shaft 410. Referring to fig. 5 again, in an embodiment, the nut mechanism 420 includes a first nut 421 and a second nut 422, and the first nut 421 is connected to the movable shaft 410 by a screw. Optionally, a groove 423 is formed at the top of the first nut 421, and the second nut 422 is received in the groove 423 and is in threaded connection with the movable shaft 410. Through setting up first nut 421 and second nut 422 at the tip of loose axle 410, after first nut 421 and second nut 422 are locked, if first nut 421 produces the not hard up trend under the exogenic action, because second nut 422 still with the terminal threaded connection of loose axle 410, first nut 421 produces the top to push away the effect to second nut 422 this moment, can not make second nut 422 rotate, the relative position of first nut 421 and second nut 422 and loose axle 422 can be fixed, the locking stroke and the dynamics of locking subassembly 400 have been fixed promptly, avoided because the activity of nut and cause all at every turn all to adjust the trouble of locking stroke and dynamics through the adjusting nut, the stability of locking subassembly 400 installation has been improved. Of course, the nut mechanism 420 of the present embodiment can also be used for a bolt-nut connection structure at any position of the foldable handlebar 10 and the bicycle, so as to improve the stability of the foldable handlebar 10 and the bicycle. Similarly, the locking assembly 400 of the present embodiment may also be used for locking operations of other devices.

In one embodiment, the vertical frame 100 is provided with a limiting groove 110, and the vertical frame 100 is slidably engaged with a front frame or a front fork stem of the bicycle through the limiting groove 110 to adjust the horizontal height of the foldable handlebar 10. Specifically, referring to fig. 1, when the stand 100 is composed of two vertical plates, the two vertical plates are disposed opposite to each other and respectively provided with a limiting groove 110, the foldable handlebar 10 further includes a sleeve 120 fixedly mounted on the front frame of the bicycle and a locking assembly 400 driving the sleeve 120 to slide along the limiting groove 110, in this embodiment, the locking assembly 400 penetrates through the two vertical plates and the sleeve 120 to adjust the tightness of the sleeve 120 between the two vertical plates and drive the sleeve 120 to slide in the extending direction of the limiting groove 110. To facilitate removal of the locking assembly 400, the nut mechanism 420 may be a nut sleeve having anti-slip threads on an outer surface. In addition, the stand 100 may be directly fixed to the front frame or the front fork steering rod by screws, or the stand 100 itself may be a part of the front frame or the front fork stem, and the first pressing plate 210 or the second pressing plate 220 may be directly mounted to the front frame or the front fork stem.

The folding handlebar 10 embodying the present invention is implemented such that the distance between the first and second

pressing plates

210 and 220 is adjusted by the locking assembly 400 having the movable shaft 410 and the cam 440 to press or release the first rotating body 310, so that, when it is necessary to adjust the first rotating body 310 to fold or unfold the first handle 320, only the first rotating body 310 needs to be released for operation; when need lock first rotor 310 and prevent that first in command 320 from rocking, only need compress tightly first rotor 310 can, this handlebar adjustment mode is simple, easily operation, and folding or the expansion back at the handlebar, first rotor 310 is compressed tightly, and the handlebar is difficult for rocking to the security of bicycle transportation and riding has been improved, is favorable to promoting the market competition of product.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A folding handlebar, comprising:

2. The folding handlebar as claimed in claim 1, wherein the shaft lever is coaxially disposed with the movable shaft and integrally formed therewith, or the first rotating body is pivotally connected to the first pressing plate and the second pressing plate through the shaft lever, respectively.

3. The folding handlebar as claimed in claim 2, further comprising a torsion spring fixed between the first pressing plate and the second pressing plate, wherein one end of the torsion spring abuts against the upright frame or the first pressing plate or the second pressing plate or the first rotating body, and the other end of the torsion spring abuts against the movable shaft for providing a restoring force for the movable shaft to be clamped into the bayonet.

4. The foldable handlebar as claimed in claim 2, wherein when the first pressing plate and the second pressing plate are respectively provided with the guide grooves, the guide grooves are strip-shaped grooves extending along the length direction of the first pressing plate, and the side surface of the first rotating body is provided with the bayonet.

5. The foldable handlebar as claimed in claim 4, wherein the cross-section of the bayonet is in a circular arc, trapezoid or wedge configuration, and the outer surface of the movable shaft is shaped to conform to the inner surface of the bayonet.

6. The folding handlebar as claimed in claim 5, wherein the ring side of the first rotating body is provided with one bayonet or a plurality of bayonets spaced apart from each other, and when the number of bayonets is one, the bayonet, the pivot hole and the first handle are located on the same line; when the number of the bayonets is larger than or equal to two, the two adjacent bayonets respectively form a preset angle with a connecting line of the pivot holes, and the preset angle is used for limiting the unfolding or folding angle of the handlebar.

7. The foldable handlebar as claimed in claim 2, wherein when the guide slot is formed on the first rotating body, the guide slot is an arc-shaped slot centered on the pivot hole and extending along a circumferential direction of the pivot hole, the bayonet is located at one end of the arc-shaped slot and is communicated with the guide slot, and the movable shaft sequentially penetrates through the first pressing plate, the first rotating body and the second pressing plate and moves in the guide slot.

8. The folding handlebar of claim 2 wherein the nut mechanism includes a first nut that is threaded with the movable shaft and a second nut that abuts and compresses the first nut and is threaded with the movable shaft.

9. The foldable handlebar of claim 2 wherein the cam has a ramp structure and a toggle portion for a person to grasp, and the locking assembly is released when the toggle portion is twisted and the ramp low point abuts the second press plate; when the toggle part is twisted to enable the high point of the inclined plane to abut against the second pressing plate, the locking assembly is in a locking state; a pressing sheet is arranged between the shaft lever and the cam, and when the toggle part is twisted and the low point of the inclined plane is abutted against the pressing sheet, the locking assembly is in a loosening state; when the toggle part is twisted to enable the high point of the inclined plane to abut against the pressing sheet, the locking assembly is in a locking state.

10. The foldable handlebar as claimed in any one of claims 1 to 9, wherein the vertical frame is provided with a limiting groove, and the vertical frame is slidably engaged with a front frame or a front fork stem of the bicycle through the limiting groove to adjust the horizontal height of the foldable handlebar.