CN2204762Y - Folding handlebar structure of a folding bicycle - Google Patents

Abstract

A folding structure of a folding bicycle handle is characterized in that a screw penetrates through the middle of the pivot joint of an upper rod body and a lower rod body, the front end of the screw is connected with a U-shaped buckling element, the tail end of the screw is connected with a pressing rod, when the handle is unfolded and folded, the upper rod body and the lower rod body are in a vertical state, and then the buckling pressing rod is pressed, so that the screw drives the U-shaped buckling element to be embedded and buckled on a lateral flange of the lower rod body to lock the bicycle handle in an unfolded and folded state.

After the pressing rod is opened, the U-shaped buckling element is separated from the lateral flanges of the upper rod body and the lower rod body, and then the U-shaped buckling element is folded. Simple structure, convenient operation, firm locking.

Description

The utility model is a foldable handle folding structure of a bicycle, which utilizes the buckle of a pressing bar to drive a U-shaped fastening element to be embedded and buckled on the lateral flanges of the upper and lower bar bodies to lock the folded body, so as to achieve the control of the folded body. The folded structure in the unfolded or collapsed state.

At present, the general foldable bicycle handle folding structure is a U-shaped fastening element made of steel, which is fitted on the lateral flange of the upper rod body connected to the bicycle handle, and the lateral flange of the lower rod body connected with the bicycle front fork frame. When closing, a screw is rotated by hand to press the U-shaped fastening element to fit the lateral flanges of the upper and lower rods, so that the upper and lower rods are locked in the upright state when unfolded and folded. When folding the handle of the bicycle, the locking screw must be reversely rotated so that the U-shaped fastening elements are separated from the outer flanges of the upper and lower rods, and the upper and lower rods are pivoted and folded, and the locking operation is slow and inconvenient. There is also a folding bicycle handle folding structure using a screw or cam mechanism that is easier to reach the unfolded or folded state than the aforementioned structure. The structure is complex, the manufacture is difficult, and the cost is high.

The purpose of the utility model is to solve the above existing problems and provide a foldable bicycle handle which is easy to operate when folded, can reach the unfolded or folded state stably, has a simple structure, is easy to manufacture, and has low cost.

Please refer to FIG. 1 , which is a three-dimensional schematic view of the folding structure of the handle of the folding bicycle of the present invention. It is characterized in that the handle 12 is connected with the upper rod body 13, the bicycle front fork frame 11 is connected with the lower rod body 14, the bicycle handle 12 is connected and pivotally connected with the lower rod body 14 to the upper rod body 13 in a foldable manner, and one can lock the upper rod body 13 in the lower body. On the rod body 14, there is a folding structure 15 to prevent it from folding. The utility model locks the unfolded and upright state, and is easy to operate and stable.

Please refer to FIG. 2 , which is a three-dimensional exploded view of the structure of the present invention. The upper rod body 13 and the lower rod body 14 are pivoted through the pivot joint holes 25, 26, 27, 28 by virtue of the pivot shafts 16, 17, and the folding structure 15 includes a pressing rod 18, a screw rod 19 and a U-shaped fastening element 20, the pressing rod 18 is an elongated groove 29, and two opposite through holes 21, 22, 23, 24 are arranged on both sides of the upper end of the elongated groove 29, wherein the two through holes 23, 24 are pivotally connected by means of pivots 16, 17. On the inside of the two pivot holes 25, 26 at the upper end of the upper rod body 13, the pivot shafts 16, 17 are pivotally connected to the upper rod body 13, the lower rod body 14 and the pressure rod 18 at the same time, while the other two holes 21, 22 of the pressure rod 18 are pivotally connected. At the pivot 30, a screw hole 31 is arranged in the center of the pivot 30. When a screw rod 19 passes through the screw hole 32 of the U-shaped fastening element 20, and then passes through the lateral flange 33 of the upper rod body 13, the lower end of the screw rod 19 is provided with a screw hole 31. The through hole 34 can be pivoted on the screw hole 31 of its pivot 30 of the depression bar 18. The male thread 35 made at the front end of the screw rod 19 is a left thread, and the male thread 36 made at its tail end is a right thread, so U The female thread of the screw hole 32 of the snap-fit element is a left thread, which can cooperate with the male thread 35 of the screw rod 19, and the female thread of its screw hole 31 of the pivot 30 is a right thread, which can cooperate with the male thread 36 of the screw rod 19, and the male thread 36 of the screw rod 19. A circular washer 37 is arranged between the U-shaped fastening element 20 . When the screw head 39 of the screw 19 rotates in the tightening direction, the screw 19 and the U-shaped fastening element 20 will shrink inward at the same time and be firmly compressed. Easy to operate and easy to maintain.

Fig. 1 is the three-dimensional schematic diagram of the folding structure of the folding bicycle handle of the present invention assembled on the folding bicycle handle;

Fig. 2 is a three-dimensional exploded view of the structure of the utility model;

Fig. 3 is a plane sectional view when the structure of the utility model is used for unfolding and folding the handle of a folding bicycle;

Fig. 4 is a plane sectional view when the structure of the utility model is used for folding the handle of a folding bicycle;

Fig. 5 is a three-dimensional schematic view of the utility model when the handle of the folding bicycle is unfolded and folded.

Please refer to FIG. 3 , which is a planar cross-sectional view of an embodiment of the foldable bicycle handle folding structure of the present invention when unfolded. When using the folding structure to unfold the handlebars, first fold the upper rod body 13 and the lower rod body 14 into a straight line, so that the lateral flange 33 of the upper rod body 13 is close to the lateral flange 38 of the lower rod body 14, and then Take the pressure rod 18 as the point of application of force, and take the pivot joint of the pressure rod 18 on the upper and lower rod bodies 13, 14 as the fulcrum, press the pressure rod 18 up until it is close to the upper rod body 13, and use the pulling force of the screw rod 19 to tighten the U-shaped buckle. The closing element 20 presses the upper and lower rod bodies 13, 14 lateral flanges 33, 38, so that the upper and lower rod bodies 13, 14 are unfolded and locked firmly to an upright state.

Please refer to FIG. 4 , which is a plane sectional view of a folding structure embodiment of the utility model folding bicycle handle when it is folded. When the handlebar is folded in a folding structure, the lateral flange 33 of the upper rod body 13 must be separated from the lateral flange 38 of the lower rod body 14. At this moment, the pressure rod 18 is pressed downward, so that the U-shaped fastening element 20 and the The lateral flange 33 of the upper rod body 13 and the lateral flange 38 of the lower rod body 14 are separated. The screw rod 19 can be rotated by means of the screw head 39 to adjust the degree of tightness of the U-shaped fastening element 20. Because the front thread 35 of the screw rod 19 is a left thread, and the tail end thread 36 is a right thread, when the screw head 39 of the screw rod 19 is screwed according to the direction of tightening When rotating, the screw rod 19 and the U-shaped fastening element 20 will shrink inward at the same time; 20 is loosened outwards so as to break away from the upper and lower rod body flanges 33, 38 and firmly fold.

Please refer to FIG. 5 , which is a three-dimensional schematic view of the handle folding structure of the folding bicycle of the present invention when the handle is unfolded and folded. After the handle is unfolded and folded, the upper rod body 13 and the lower rod body 14 are in an upright state. Due to the pressing of the pressure rod 18, the screw rod 19 pulls the U-shaped fastening element 20 to compress the lateral flanges 33, 38 of the upper and lower rod bodies 13, 14 to obtain locking.

Claims (2)

1. A folding structure for a foldable handlebar of a bicycle, which controls the unfolded and folded state of the handlebar, and is characterized in that a screw (19) runs through the foldable structure (15) at the hinge joint between the upper rod body (13) and the lower rod body (14). ) in the middle, the screw (19) is screwed with a U-shaped fastening element (20) near the front screw head (39), and the tail end of the screw is screwed with a pressure rod (18), which is pivotally connected to the upper rod body (13) At the pivot joint of the lower rod body (14), the upper rod body (13) is provided with a lateral flange (33), and the lower rod body (14) is provided with a lateral flange (38). 2. The folding structure of the foldable bicycle handlebar according to claim 1, characterized in that the screw (19) is made into a left-hand thread near the front screw head (39), which is screwed into the U-shaped fastening element (20), and the screw (19) ) tail end is made into the screw hole (31) of the right-hand thread and the screwed pressure bar (18) pivot (30).

Images