CN207809675U - Bicycle buncher - Google Patents

Abstract

The utility model discloses a bicycle stepless speed changer, in which two ends of a long shaft (4) on a vehicle frame are respectively connected to a pedal rod (1) through a connecting rod shaft (5), and a handle wheel with a locking block (7) (6) Install the handle, install the runner (9) inside the pedal rod (1), wire rope (8) is wound on the handle runner (6) and runner (9), and fix the slide on the wire rope (8) block (10), the one-way clockwise gear (12) and the second large gear (15) are installed on the vehicle frame through the central shaft (16), and the one-way counterclockwise gear (13) and the first large gear (14) are installed on the vehicle On the rack, the No. 1 large gear (14) meshes with the No. 2 large gear (15), one end of the rack bar (11) is movably connected with the slider (10), and the rack at the other end of the rack bar (11) engages with the one-way clockwise gear (12) and one-way counterclockwise gear (13). The utility model has the advantages of simple structure, low cost, convenient operation, no gear position, no slipping and stable operation.

Description

Bicycle CVT

technical field

The utility model relates to a speed changer, in particular to a bicycle stepless speed changer.

Background technique

At present, ordinary bicycles use a pedal faceplate, which is driven to the flywheel through a chain, which belongs to the axle lever movement. However, due to the small ratio of the radius of the wheel to the axle, the labor-saving effect is still not ideal; The larger angle with the horizontal line breaks down the transmission force, and you still feel strenuous when riding.

Contents of the invention

The purpose of the utility model is: to design a bicycle stepless speed changer, simple in structure, low in cost, leverage principle, labor-saving in cycling, suitable for climbing.

The technical solution of the utility model is: the bicycle includes a frame, a pedal rod and a pedal, a pair of pedal rods are installed on the frame through a rotating shaft, and the pedals are installed on the pedal rod, and it is characterized in that: A continuously variable transmission is installed on it, and the continuously variable transmission includes a long shaft, a connecting rod shaft, a handle runner, a locking block, a wire rope, a runner, a slider, a rack bar, a one-way clockwise gear, and a one-way counterclockwise gear , the No. 1 big gear, the No. 2 big gear and the central shaft, the long shaft is installed on the frame, the two ends of the long shaft are respectively connected to the pedal rod through the connecting rod shaft, and the handle wheel with locking block is installed on the handle On the top, the runner is installed in the pedal rod, the wire rope is wound on the handle runner and the runner, the slider is fixed on the wire rope, the one-way clockwise gear and the second large gear are installed on the frame through the central shaft, and the one-way counterclockwise The gear and the No. 1 large gear are installed on the frame through the shaft. The No. 1 large gear meshes with the No. 2 large gear. One end of the rack bar is movably connected to the slider, and the other end of the rack bar is installed on the frame through two rotating wheels and a connecting block. and make the rack of the rack bar engage the one-way clockwise gear and the one-way counterclockwise gear.

Wherein, the steel wire rope is covered with a protective tube, one end of the protective tube is connected with the handle wheel, and the other end of the protective tube is connected with the pedal rod.

The principle of the utility model is: the one-way gear only rotates in one direction, and when it rotates by itself, it will not drive the big gear below to rotate, and the opposite direction is locked, and it cannot rotate itself; when the rotation in the opposite direction is locked, then It will drive the big gear below to rotate together; the rack bar directly acts on the one-way gear, and the big gear below is driven by the one-way gear.

The utility model has the advantages of simple structure, low cost, convenient operation, no gear position, no slipping and stable operation.

Description of drawings

Fig. 1 is the structural representation of the utility model;

FIG. 2 is a partially enlarged schematic diagram of FIG. 1 .

In the figure: 1 pedal rod, 2 pedals, 3 rotating shafts, 4 long shafts, 5 connecting rod shafts, 6 handle runners, 7 locking blocks, 8 steel wire ropes, 9 runners, 10 sliders, 11 rack rods , 12 unidirectional clockwise gears, 13 unidirectional counterclockwise gears, 14 No. 1 large gears, 15 No. 2 large gears, 16 central shafts, 17 connecting blocks, and 18 protective tubes.

Detailed ways

Further illustrate the technical scheme of the utility model below in conjunction with accompanying drawing.

As shown in Figures 1 and 2, the bicycle includes a vehicle frame, a pedal bar 1 and a pedal 2, a pair of pedal bars 1 are installed on the vehicle frame through a rotating shaft 3, and the pedal 2 is installed on the pedal bar 1. The feature is that a continuously variable transmission is installed on the bicycle, and the continuously variable transmission includes a long shaft 4, a connecting rod shaft 5, a handle wheel 6, a locking block 7, a steel wire rope 8, a wheel 9, a slider 10, and a rack bar 11. One-way clockwise gear 12, one-way anti-clockwise gear 13, No. 1 large gear 14, No. 2 large gear 15 and central shaft 16, the long shaft 4 is installed on the vehicle frame, and the two ends of the long shaft 4 are respectively connected Rod shaft 5 is connected to pedal rod 1, handle runner 6 with locking block 7 is installed on the handle, runner 9 is installed in pedal rod 1, and steel wire rope 8 is wound on handle runner 6 and runner 9 , the slide block 10 is fixed on the wire rope 8, the one-way clockwise gear 12 and the second large gear 15 are installed on the vehicle frame through the central shaft 16, the one-way counterclockwise gear 13 and the first large gear 14 are installed on the vehicle frame through the shaft, The No. 1 large gear 14 meshes with the No. 2 large gear 15, and one end of the rack bar 11 is movably connected to the slider 10, and the other end of the rack bar 11 is installed on the vehicle frame through two runners and a connecting block 17 to make the rack bar The rack meshes the one-way clockwise gear 12 and the one-way counterclockwise gear 13 .

Wherein, the steel wire rope 8 is covered with a protective tube 18, one end of the protective tube 18 is connected with the handle runner 6, and the other end of the protective tube 18 is connected with the pedal bar 1.

When working, when the pedal on one side is stepped on, the pedal on the other side will rise, and at the same time, the pedal rod drives the rack bar 11 to move forward, and the rack bar 11 drives the one-way clockwise gear 12 to rotate counterclockwise. The one-way clockwise gear 12 is a clockwise wheel, and turning counterclockwise will lock it, correspondingly driving the No. The gear 13 rotates clockwise, and the one-way counterclockwise gear 13 is a counterclockwise wheel, and the counterclockwise rotation will not lock the No. 1 large gear 14 which rotates clockwise. When the No. 2 large gear 15 rotates, it drives the central shaft 16 to rotate counterclockwise. The wheel installed on the central shaft 16 rotates; on the contrary, when the pedal on the other side is stepped on, the rack bar 11 is driven to move backward, and the rack bar 11 drives the one-way counterclockwise gear 13 to rotate clockwise, and the one-way counterclockwise The gear 13 is an anticlockwise wheel, and it will be locked when it is turned clockwise. It will drive the No. 1 large gear 14 to rotate clockwise, and the No. 1 large gear 14 will drive the No. 2 large gear 15 to rotate counterclockwise. Clockwise wheel, clockwise rotation will not lock the No. 2 large gear 15 that rotates counterclockwise, and also drives the central shaft 16 to rotate counterclockwise; the handle runner 6 rotates, the locking block 7 is not locked, and the handle runner When 6 does not turn, the locking block 7 is locked and does not move; when the handle runner 6 on the handle is turned backward, the steel wire rope 8 is driven, and the steel wire rope 8 drives the slider 10 to rise to the uppermost part of the pedal rod. The lever stroke is large, which is suitable for the rapid movement of the bicycle. When the handle wheel 6 is turned forward, the slider 10 is driven down to the bottom of the pedal rod. At this time, the lever stroke is small. Slope, slide block 10 moves in any position between the top and the bottom of the pedal bar according to the adjustment of handlebar runner 6, realizes the stepless speed change of bicycle.

Claims (2)

1. bicycle buncher, which includes vehicle frame, foot-driven lever（1）With it is foot-operated（2）, a pair of of foot-driven lever（1）Pass through Shaft（3）On vehicle frame, ride（2）Mounted on foot-driven lever（1）On, it is characterized in that：Electrodeless variable-speed is installed on bicycle Device, the buncher include long axis（4）, pitman shaft（5）, hand handle runner（6）, latch（7）, steel wire rope（8）, runner （9）, sliding block（10）, rack bar（11）, unidirectional up time pin gear（12）, unidirectional inverse time pin gear（13）, No.1 gear wheel（14）、 No. two gear wheels（15）And central shaft（16）, long axis（4）On vehicle frame, long axis（4）Both ends pass through pitman shaft respectively（5） Connect foot-driven lever（1）, locking stops（7）Hand handle runner（6）It is mounted on the handlebar, foot-driven lever（1）Interior installation runner（9）, steel Cord（8）It is wrapped in hand handle runner（6）And runner（9）On, steel wire rope（8）Upper fixed sliding block（10）, pass through central shaft on vehicle frame （16）Unidirectional up time pin gear is installed（12）With No. two gear wheels（15）, unidirectional inverse time pin gear（13）With No.1 gear wheel（14） It is mounted on vehicle frame by axis, No.1 gear wheel（14）Engage No. two gear wheels（15）, rack bar（11）One end flexible connection Sliding block（10）, rack bar（11）The other end pass through two runners and link block（17）On vehicle frame and make the tooth of rack bar Item engages unidirectional up time pin gear（12）With unidirectional inverse time pin gear（13）.

2. bicycle buncher extremely described in claim 1, it is characterized in that：Steel wire rope（8）Upper suit protecting tube（18）, Protecting tube（18）One end connects hand handle runner（6）, protecting tube（18）The other end connects foot-driven lever（1）.