Folding handlebar structure

Abstract

A folding handlebar structure, a turning seat and a left folding seat and a right folding seat are respectively installed on a vertical tube and a left handlebar tube and a right handlebar tube, the turning seat is hinged to the bottom ends of the left folding seat and the right folding seat, the top ends of the left folding seat and the right folding seat are respectively hinged to a four-link quick lock and a connecting rod, the four-link quick lock is hinged to the other end of the connecting rod, and when the handlebar is unfolded, a dead point can be formed between the connecting rod and the hinged end of the left folding seat or the right folding seat; in addition, a locking structure is also installed between the four-link quick lock and the left folding seat or the right folding seat to stabilize the handlebar in the unfolded state. The structure of the folding handlebar is simple, but through the setting of the four-link dead point and the cooperation of the safety buckle and the safety hook, an extremely stable working effect can be formed, and it is also conducive to meeting different use requirements and improving its applicability; in addition, the handlebar is extremely easy to fold and unfold, which can effectively improve the convenience of the folding operation.

Description

Technical Field

[0001] The invention relates to small movable vehicles such as bicycles, electric vehicles, scooters, etc., and in particular to a foldable handlebar structure. Background Art

[0002] The handlebar is a component for the rider or user to hold in hand, which is commonly found on small vehicles such as bicycles, motorcycles, scooters, and carts, and its function is equivalent to the steering wheel of a car. The general handlebar is an integrated design, and in order to meet the use needs of foldable vehicles, some handlebars also have a foldable structure. However, the structure of existing foldable handlebars is relatively complex, and it is inconvenient to use, and it is difficult to meet different use requirements, resulting in limited applicability. Summary of the invention

[0003] The object of the present invention is to provide a folding handlebar structure with simple structure, easy operation and better working stability, so as to improve the convenience of folding operation and meet different usage needs.

[0004] The folding handlebar structure described in the present invention comprises a vertical tube assembly connected to a vehicle frame and a left handlebar and a right handlebar for a user to hold with both hands respectively, a longitudinal turning seat is mounted on the top of the vertical tube assembly, a left folding seat and a right folding seat are mounted on the inner ends of the left handlebar and the right handlebar respectively, the bottom ends of the left folding seat and the right folding seat are respectively hinged to the two side ends on the turning seat; and a four-link quick lock with a locking device is also provided.

[0005] The folding handlebar structure of the present invention comprises a vertical tube connected to a vehicle frame and a left handlebar and a right handlebar for a user to hold with both hands respectively, a turning seat is arranged on the top of the vertical tube, a left folding seat and a right folding seat are arranged on the inner ends of the left handlebar and the right handlebar respectively, and the bottom ends of the left folding seat and the right folding seat are respectively hinged to the two side ends of the turning seat; there is also a four-link quick lock, which is arranged above the turning seat, one end of the bottom of the four-link quick lock is hinged to the top of the left folding seat and the other end is hinged to a connecting rod, and the other end of the connecting rod is hinged to the top of the right folding seat; a locking structure which can be locked or disengaged with each other is also arranged between the four-link quick lock and the right folding seat.

[0006] The folding handlebar structure of the present invention comprises a seat tube, a left handlebar tube and a right handlebar tube forming a three-pronged structure, the turning seat on the seat tube is hinged to the left folding seat and the right folding seat on the left handlebar tube and the right handlebar tube respectively, one of the left folding seat and the right folding seat is provided with a part of a locking structure, the one provided with the locking structure is connected to the four-bar quick lock through a connecting rod, and the one not provided with the locking structure is directly hinged to the four-bar quick lock, thereby, the left folding seat, the four-bar quick lock, the connecting rod and the right folding seat jointly form a four-bar structure, and the four-bar structure is extended or contracted by the top end of the seat tube, thereby realizing the opening or folding of the handlebar. In addition, another part of the locking structure is installed on the four-link quick lock. When the handlebar is unfolded, the left folding seat and the right folding seat are arranged opposite to each other, one end of the bottom of the four-link quick lock and the end of the connecting rod are hinged to the left folding seat and the right folding seat respectively, and the other end of the connecting rod, that is, the other end of the bottom of the four-link quick lock is located on one side in the horizontal direction and is connected to the hinge point at the top of the left folding seat and the right folding seat in a straight line, which makes the hinge point of the connecting rod and the left folding seat or the right folding seat form a dead point, realizing a certain degree of self-locking; at the same time, the four-link quick lock and The left folding seat or the right folding seat is locked by a locking structure, so that the handlebar is locked in the unfolded state; when the handlebar needs to be folded, the locking state of the locking structure is released, and then the four-link quick lock is rotated to make the connecting rod retreat past the dead point on the four-link structure until the hinged end of the four-link quick lock and the left folding seat / right folding seat and the hinged end of the connecting rod and the right folding seat / left folding seat move back to the far end, and the left handlebar tube and the right handlebar tube rotate around the turning seat on the vertical tube and shrink to be close to the vertical tube to achieve the folding effect. The structure of the folding handlebar is simple, but through the setting of the four-link dead point and the cooperation of the locking structure, it can form an extremely stable working effect, and it is also conducive to meeting different use requirements and improving its applicability; in addition, the handlebar is extremely easy to fold and unfold, which can effectively improve the convenience of the folding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a structural schematic diagram of a folding handlebar structure.

[0008] Figure 2 It is a schematic diagram of the structure of the folding handlebar structure in the unfolded state.

[0009] Figure 3 It is a partial cross-sectional structural schematic diagram of the folding handlebar structure in an unfolded state.

[0010] Figure 4 It is a schematic diagram of the folding state structure of the folding handlebar structure.

[0011] Figure 5 , 6 It is a structural schematic diagram of a folding handlebar structure with a vertical tube.

[0012] Figure 7 It is a schematic diagram of the installation structure of the slide bar. DETAILED DESCRIPTION

[0013] Embodiment 1.

[0014] A folding handlebar structure comprises a vertical tube assembly connected to a vehicle frame and a left handlebar and a right handlebar for a user to hold with both hands respectively. A longitudinal turning seat is arranged on the top of the vertical tube assembly, a left folding seat and a right folding seat are arranged on the inner ends of the left handlebar and the right handlebar respectively, and the bottom ends of the left folding seat and the right folding seat are respectively hinged to the two side ends of the turning seat; and a four-link quick lock with a locking device is also provided.

[0015] Embodiment 2, as Figure 1-7 shown.

[0016] A folding handlebar structure comprises a vertical tube 1 connected to a vehicle frame and a left handlebar 2 and a right handlebar 3 for a user to hold with both hands, a turning seat 4 is arranged on the top of the vertical tube, a left folding seat 5 and a right folding seat 6 are arranged on the inner ends of the left handlebar and the right handlebar, respectively, and the bottom ends of the left folding seat and the right folding seat are respectively hinged to the two side ends of the turning seat; a four-link quick lock 7 is further provided, the four-link quick lock is arranged above the turning seat, one end of the bottom of the four-link quick lock is hinged to the top of the left folding seat and the other end is hinged to a connecting rod 8, and the other end of the connecting rod is hinged to the top of the right folding seat; a locking structure which can be locked or disengaged with each other is also arranged between the four-link quick lock and the right folding seat.

[0017] The locking structure can be arranged on the left handlebar or the right handlebar as required. In this embodiment, the safety hook is installed on the right handlebar as an example.

[0018] The folding handlebar structure comprises a vertical tube equipped with a turning seat, a left handlebar tube equipped with a left folding seat, and a right handlebar tube equipped with a right folding seat, forming a three-pronged structure, and the turning seat is hinged to the bottom ends of the left folding seat and the right folding seat respectively, and the top ends of the left folding seat and the right folding seat are hinged to the four-bar quick lock and the connecting rod respectively, thereby forming four quadrilateral hinge points, so that the handlebar has space for opening or folding; in addition, the other end of the four-bar quick lock is hinged to the connecting rod, so that the left folding seat, the four-bar quick lock, the connecting rod and the right folding seat together form a four-bar structure, and the four-bar structure is extended or contracted by the top end of the vertical tube, thereby realizing the opening or folding of the handlebar.

[0019] When the handlebar is unfolded, the left folding seat and the right folding seat are arranged opposite to each other, the hinged end of the connecting rod and the four-bar fast lock is located on one side of the right folding seat in the horizontal direction, and the two hinged ends of the connecting rod and the hinged end of the four-bar fast lock and the left folding seat are located on the same straight line, that is, the three hinged ends A, B, and C are in the same straight line, thereby, the hinge point B between the connecting rod and the right folding seat forms a dead point, so that the handlebar achieves a certain degree of self-locking; at the same time, the four-bar fast lock and the right folding seat are locked by the locking structure, so that the handlebar is stably maintained in the unfolded state. When the handlebar needs to be folded, the locking state of the locking structure is released, and then the four-bar fast lock is rotated to make the connecting rod retreat past the dead point on the four-bar structure until the hinged end of the four-bar fast lock and the left folding seat and the hinged end of the connecting rod and the right folding seat move away from each other to the far end, and the left handlebar tube and the right handlebar tube rotate around the turning seat on the vertical tube and shrink to be close to the vertical tube, and the handlebar reaches the folded state.

[0020] The locking structure of the folding handlebar structure can be a buckle that engages with each other, or a quick lock assembly, or can be as shown in the present embodiment, including a safety hook 91 installed on the right handlebar tube 3 / left handlebar tube 2, and a safety buckle 92 hinged on the four-link quick lock 7, the safety buckle is provided with a lock hook 93 that is mutually locked or disengaged with the safety hook, and a torsion spring 94 is sleeved at the hinged position between the safety buckle and the four-link quick lock, and the torsion spring exerts a force on the safety buckle to press the lock hook toward the safety hook. When the handlebar is in the unfolded state, the lock hook of the safety buckle and the safety hook are stably engaged with each other under the force of the torsion spring; until the handlebar needs to be folded, the safety buckle is rotated to disengage the lock hook from the safety hook, and the user can pull the four-link quick lock to fold the handlebar; and when the handlebar needs to be unfolded again, the user rotates the handlebar and presses the lock hook on the safety buckle toward the safety hook, and the safety buckle and the safety hook can be engaged with each other. This locking structure is relatively simple and easy to operate, but it works extremely quickly and stably, which is conducive to improving the convenience of operation and safety of use.

[0021] In the folding handlebar structure, a handle through groove 71 is provided in the middle of the four-bar quick lock 7 for the user's hand to pass through, so as to facilitate the user's grip and application of force; in addition, the middle part of the safety buckle 92 is hinged to the four-bar quick lock 7, and one end of the safety buckle is provided with a lock hook 93 and the other end extends into the handle through groove 71. When the user holds the four-bar quick lock, the safety buckle can be moved by the finger to realize one-handed continuous operation, further improving the convenience of operation.

[0022] In the folding handlebar structure, a slide bar 21 movable in the axial direction of the vertical tube 1 is provided inside the vertical tube, and one end of the slide bar is hinged to two connecting rods 22, and the other ends of the two connecting rods are respectively hinged to the left folding seat 5 and the right folding seat 6. Through the arrangement of the slide bar and the two connecting rods, the linkage of the left handlebar and the right handlebar can be achieved, thereby improving the convenience of operation. In addition, a sliding sleeve 23 is fixedly installed inside the vertical tube 1, and the middle part of the slide bar 21 passes through the sliding sleeve and slides relatively. The arrangement of the sliding sleeve guides the slide bar and improves the smoothness of sliding.

[0023] The folding handlebar structure has a vertical tube 11 connected to the front fork of the vehicle at the bottom, the top of the vertical tube can be detachably mounted on the vertical tube 1, and the vertical tube is also mounted with a pipe sleeve 13 that can move along the vertical tube or be fixed at any position; a slide rod 21 is located between the connecting end with the linkage rod and the slide sleeve 23 and is sleeved with a compression spring 24, and a sliding block 25 is fixedly mounted on the other end of the slide rod, and a long strip sliding groove is opened on the vertical tube 11 at a position opposite to the sliding block, and the end of the sliding block passes through the sliding groove and extends to the outside of the vertical tube, and the end of the sliding block abuts against the pipe sleeve 13. The two ends of the compression spring abut against the sliding sleeve and the slide rod, and the compression spring exerts a force on the slide rod pointing to the linkage rod, thereby forming a tendency to drive the left handlebar and the right handlebar to fold; at the same time, the pipe sleeve on the vertical tube limits the sliding block, thereby preventing the slide rod from moving and causing the left handlebar and the right handlebar to fold; until the locking of the pipe sleeve is released and the vertical tube is folded, the slide rod will drive the left handlebar and the right handlebar to fold at the same time under the action of the compression spring. This structure enables the left handlebar, the right handlebar and the vertical tube to be folded synchronously, further improving the convenience of operation.

Claims

1. A folding handlebar structure, comprising a vertical tube (1) or a vertical tube assembly connected to a vehicle frame, and a left handlebar (2) and a right handlebar (3) for a user to hold with both hands, characterized in that: A turning seat (4) is installed on the top of the vertical tube or the vertical tube assembly, and a left folding seat (5) and a right folding seat (6) are installed on the inner ends of the left handlebar tube and the right handlebar tube respectively, and the bottom ends of the left folding seat and the right folding seat are respectively hinged to the two side ends of the turning seat; there is also a four-link quick lock (7), which is arranged above the turning seat, one end of the bottom of the four-link quick lock is hinged to the top of one of the left folding seat or the right folding seat and the other end is hinged to a connecting rod (8), and the other end of the connecting rod is hinged to the top of the other of the right folding seat or the left folding seat; a locking structure that can be locked or disengaged with each other is also installed between the four-link quick lock and the other of the right folding seat or the left folding seat.

2. The folding handlebar structure according to claim 1, characterized in that: The two hinged ends of the connecting rod (8) and the hinged ends of the four-link quick lock (7) and the left folding seat (5) / right folding seat (6) are located on the same straight line.

3. The folding handlebar structure according to claim 1 or 2, characterized in that: The locking structure comprises a safety hook (91) mounted on the right handlebar (3) / left handlebar (2), and a safety buckle (92) hinged on the four-bar quick lock (7); the safety buckle is provided with a lock hook (93) which is mutually locked or disengaged with the safety hook; a torsion spring (94) is sleeved at the hinged position between the safety buckle and the four-bar quick lock, and the torsion spring exerts a force on the safety buckle to press the lock hook toward the safety hook.

4. The folding handlebar structure according to claim 3, characterized in that: A handle through slot (71) for a user's hand to pass through is formed in the middle of the four-link quick lock (7).

5. The folding handlebar structure according to claim 4, characterized in that: The middle part of the safety buckle (92) is hinged on the four-link quick lock (7), and one end of the safety buckle is provided with a lock hook (93) and the other end extends into the handle through groove (71).

6. The folding handlebar structure according to claim 1 or 2, characterized in that: A slide bar (21) movable in the axial direction is provided inside the vertical pipe (1), one end of the slide bar is hinged to two connecting rods (22), and the other ends of the two connecting rods are respectively hinged to the left folding seat (5) and the right folding seat (6).

7. The folding handlebar structure according to claim 6, characterized in that: A sliding sleeve (23) is fixedly installed inside the vertical pipe (1), and the middle part of the sliding rod (21) passes through the sliding sleeve and slides relatively.

8. The folding handlebar structure according to claim 7, characterized in that: A vertical tube (11) is provided with a bottom portion connected to a front fork of a vehicle, the top portion of the vertical tube is detachably mounted on the vertical tube (1), and a pipe sleeve (13) is mounted on the vertical tube and can be moved along the vertical tube or fixed at any position; a slide rod (21) is provided with a compression spring (24) between the end connected to the linkage rod and the slide sleeve (23), a slide block (25) is fixedly mounted on the other end of the slide rod, a long strip-shaped slide groove is provided on the vertical tube (11) at a position opposite to the slide block, the end of the slide block passes through the slide groove and extends to the outside of the vertical tube, and the end of the slide block abuts against the pipe sleeve (13).

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