CN211281353U

CN211281353U - Comfortable, durable and convenient-to-operate tricycle

Info

Publication number: CN211281353U
Application number: CN201821415141.XU
Authority: CN
Inventors: 肖峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-08-31
Filing date: 2018-08-31
Publication date: 2020-08-18
Anticipated expiration: 2028-08-31

Abstract

The utility model discloses a comfortable, durable and convenient tricycle, which comprises a frame, a steering wheel arranged at the front part of the frame, a power rear axle fixedly arranged on a plate spring, a brake system and a parking device, wherein the front end of the plate spring is rotatably connected with the frame, the rear end of the plate spring is slidably connected with the frame, the brake system comprises a pedal crank hinged at the front part of the frame, a left brake disc on the power rear axle, a right brake disc on the power rear axle, a left brake cable and a right brake cable, the left brake cable is connected between the pedal crank and the brake rocker arm of the left brake disc, the right brake cable is connected between the pedal crank and the brake rocker arm of the right brake disc, the power rear axle moves along with the plate spring when a vehicle runs, the movement of the power rear axle is limited without a left pull rod and a right pull rod, the damping function of the plate spring can be fully exerted, the vehicle is comfortable to ride, and the vehicle is safe and durable.

Description

Comfortable, durable and convenient-to-operate tricycle

Technical Field

The utility model relates to a tricycle.

Background

FIG. 1 shows the structure of the existing tricycle, the existing tricycle includes a frame 4, a steering wheel 5 installed in the front of the frame 4, a power rear axle 1 installed in the rear of the frame 4 through a plate spring, a brake system 2 and a parking device 3, the brake system 2 of the tricycle includes a pedal crank 8 hinged in the front of the frame, a left brake disc on the power rear axle 1, a right brake disc on the power rear axle 1, a link mechanism, a left pull rod 6 and a right pull rod 7, the structure diagram of the link mechanism is shown in FIG. 2, the fixed hinged center of the link mechanism is located on the frame, the pedal crank 8 is connected with the brake rocker arms on the left and right brake discs through the link mechanism, the left pull rod 6 and the right pull rod 7 are connected between the power rear axle and the frame for preventing the power rear axle from moving back and forth, the pedal crank is stepped on when braking, the brake, because the power rear axle is arranged below the frame through the plate spring, the road is uneven in the driving process of the vehicle, the plate spring does not bend and stretch when the vehicle bumps, when the plate spring relaxes, the plate spring pushes the power rear axle backwards, when the plate spring bends, the plate spring pushes the power rear axle forwards, the left and right pull rods limit the power rear axle to move forwards and backwards along with the bending of the plate spring, the distance between the fixed hinge center of the connecting rod mechanism and the brake disc is ensured to be unchanged, the reliable braking of the tricycle is realized, the thrust generated by the plate spring is born by the left and right pull rods, the traction of the vehicle is partially pushed to move forwards through the side pull rods, and when the tricycle is braked and reversed, the braking force of the vehicle is partially converted into the tension of the side pull rods, so that in the actual use process, the left and right pull rods are vulnerable parts with high damage rate, the maintenance cost is increased, and if the side pull rods are, brake failure is caused, and traffic safety is endangered; in addition, the left and right pull rods limit the free tension of the plate spring to a certain extent, so that the damping effect of the vehicle is reduced, and the riding comfort is influenced.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a comfortable, durable and convenient tricycle

The basic idea of the utility model is that: the side pull rods on the left side and the right side are eliminated, the connecting rod mechanism is replaced by the brake cable, the pedal crank and the brake rocker arm on the brake disc of the power rear axle are connected through the brake cable, the pedal crank is stepped on, and the brake rocker arm is pulled through the brake cable, so that the tricycle is braked.

The technical scheme of the utility model is that: the utility model provides a comfortable, durable, convenient operation's tricycle, includes the frame, installs at the anterior directive wheel of frame, the power rear axle of fixed mounting on the leaf spring, leaf spring front end and frame rotatable coupling, but leaf spring rear end and frame sliding connection, braking system and parking device in addition, braking system is including articulating right brake disc, left brake cable, right brake cable on the left brake disc, the power rear axle on the pedal crank of frame front portion, the power rear axle, left brake cable is connected between the brake rocking arm of pedal crank and left brake disc, right brake cable is connected between the brake rocking arm of pedal crank and right brake disc.

Furthermore, the left brake cable and the right brake cable are connected with the pedal crank through connecting blocks, and the connecting blocks are connected with the pedal crank through rotating shafts.

The parking device comprises a hook plate fixedly mounted on the frame, a sawtooth strip used for being hooked with the hook plate, two connecting rods hinged between the sawtooth strip and a pedal crank, a cam and a tension spring, wherein the sawtooth strip, the pedal crank and the two connecting rods form a double-crank mechanism; furthermore, a small pedal is arranged on the cam, and a P-shaped pattern is marked on the small pedal; the parking device works in such a way that after a pedal crank is stepped on to brake, a small pedal marked with a P-shaped figure is stepped on, a cam rotates, the cam pushes a double-crank mechanism to move, a sawtooth strip hooks a hook plate, and parking is finished; when the parking is required to be released, the pedal crank is continuously stepped down, the tension spring pulls the double-crank mechanism and the cam, the sawtooth strip is separated from the hook plate, meanwhile, the cam returns, and the parking is released.

The utility model discloses a braking system who adopts includes the pedal crank that articulates in the frame front portion, the left brake disc on the power rear axle, the right brake disc on the power rear axle, left brake cable, right brake cable, left brake cable connects between the brake rocking arm of pedal crank and left brake disc, right brake cable connects between the brake rocking arm of pedal crank and right brake disc, the braking of tricycle just can be realized to pedal crank when stepping on, braking safe and reliable, because the brake cable is flexible, the bending does not influence the brake function with extending, so the back-and-forth movement of power rear axle can not influence the brake function, therefore do not need left, right side pull rod to restrict the removal of power rear axle, left, right side pull rod of traditional tricycle has been left out, right side pull rod, the power rear axle moves along with the leaf spring when the vehicle is traveling, can full play the shock-absorbing function of leaf spring, it is comfortable to; additionally, the utility model discloses a parking device steps on the little footboard that marks P word figure, and the cam rotates, and the cam promotes the motion of double crank mechanism, and the sawtooth rack catches on and colludes the board, just can accomplish parking, convenient to use.

Drawings

Fig. 1 is a structural view of a conventional tricycle.

Fig. 2 is a structural diagram of a link mechanism in a brake system of a conventional tricycle.

Fig. 3 is a block diagram of an embodiment of a comfortable, durable, and easy-to-operate tricycle according to the present invention.

FIG. 4 is a block diagram of the braking system of FIG. 3.

Fig. 5 is a structural view of the parking device in fig. 3.

The figures are numbered: 1. a powered rear axle; 2. a braking system; 3. a parking device; 4. a frame; 5. a steering wheel; 6. a left side pull rod; 7. a right side pull rod; 8. a pedal crank; 11. a powered rear axle; 12. a braking system; 13. a parking device; 14. a frame; 15. a steering wheel; 16. a plate spring; 21. a left brake cable; 22. a right brake cable; 23. connecting blocks; 24. a pedal crank; 25. a left brake disc; 26. a right brake disc; 31. hooking the plate; 32. a sawtooth strip; 33. a connecting rod; 34. a connecting rod; 35. a cam; 36. a tension spring.

Detailed Description

The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.

Fig. 3 to 5 show a comfortable, durable and convenient tricycle embodiment of the present invention, which comprises a frame 14, a steering wheel 15 mounted on the front portion of the frame 14, a rear axle 11 fixedly mounted on a plate spring 16, wherein the front end of the plate spring 16 is rotatably connected to the frame 14, the rear end of the plate spring 16 is slidably connected to the frame 14, a braking system 12 and a parking device 13; referring to fig. 4, the braking system 12 includes a pedal crank 24 hinged to the front portion of the frame 14, a left brake disc 25 on the power rear axle 11, a right brake disc 26 on the power rear axle 11, a left brake cable 21, and a right brake cable 22, the left brake cable 21 is connected between the pedal crank 24 and a brake rocker of the left brake disc 25 through a connecting block 23, the right brake cable 22 is connected between the pedal crank 24 and a brake rocker of the right brake disc 26 through a connecting block 23, and the connecting block 23 is connected with the pedal crank 24 through a rotating shaft.

Referring to fig. 5, the parking device 13 includes a hook plate 31 fixedly mounted on the frame 14, a sawtooth rack 32 for hooking with the hook plate 31, a connecting rod 33 and a connecting rod 34 hinged between the sawtooth rack 32 and the pedal crank 24, a cam 35 and a tension spring 36, the sawtooth rack 32, the pedal crank 24, the connecting rod 33 and the connecting rod 34 constitute a parallel double-crank mechanism, the cam 35 is rotatably mounted on the pedal crank 24, the cam 35 can push the parallel double-crank mechanism to move when rotating, one end of the tension spring 36 is mounted on the cam 35, the other end is mounted on the sawtooth rack 32 of the parallel double-crank mechanism, and the tension spring 36 can pull the parallel double-crank mechanism to move; a small pedal is arranged on the cam 35, and a P-shaped pattern is marked on the small pedal; the parking device works in such a way that after a pedal crank 24 is stepped on to brake, a small pedal marked with a P-shaped figure is stepped on, a cam 35 rotates, the cam 35 pushes a parallel double-crank mechanism to move, a sawtooth strip 32 hooks a hook plate 31, and parking is finished; when the parking is required to be released, the pedal crank 24 is continuously stepped down, the tension spring 36 pulls the parallel double-crank mechanism and the cam 35, the sawtooth rack 32 is separated from the hook plate 31, meanwhile, the cam 35 returns, and the parking is released.

Claims

1. The utility model provides a comfortable, durable, convenient operation's tricycle, includes the frame, installs at the anterior directive wheel of frame, the power rear axle of fixed mounting on the leaf spring, braking system and parking device in addition, its characterized in that: leaf spring front end and frame rotatable coupling, leaf spring rear end and frame sliding connection, braking system is including articulating right brake disc, left brake cable, the right brake cable on left brake disc, the power rear axle on the anterior pedal crank of frame, the power rear axle, left brake cable, the brake cable of left side, left brake cable is connected between the brake rocking arm of pedal crank and left brake disc, right brake cable is connected between the brake rocking arm of pedal crank and right brake disc.

2. A comfortable, durable, easy-to-operate tricycle, according to claim 1, characterized in that: the left brake cable and the right brake cable are connected with the pedal crank through connecting blocks, and the connecting blocks are connected with the pedal crank through rotating shafts.

3. A comfortable, durable, easy-to-operate tricycle according to claim 1 or 2, characterized in that: the parking device comprises a hook plate fixedly mounted on a frame, a sawtooth strip used for hooking the hook plate, two connecting rods hinged between the sawtooth strip and a pedal crank, a cam and a tension spring, wherein the sawtooth strip, the pedal crank and the two connecting rods form a double-crank mechanism, the cam is rotatably mounted on the pedal crank, the cam can push the double-crank mechanism to move when rotating, one end of the tension spring is mounted on the cam, the other end of the tension spring is mounted on the double-crank mechanism, and the tension spring can pull the double-crank mechanism to move.

4. A comfortable, durable, easy-to-operate tricycle, according to claim 3, characterized in that: the double-crank mechanism is a parallel double-crank mechanism.

5. A comfortable, durable, easy-to-operate tricycle, according to claim 3, characterized in that: a small pedal is arranged on the cam, and a P-shaped pattern is marked on the small pedal.

6. The comfortable, durable, and easy-to-operate tricycle of claim 4, wherein: a small pedal is arranged on the cam, and a P-shaped pattern is marked on the small pedal.