CN220785881U - Three-wheeled sports car with retarding and self-locking functions - Google Patents

Abstract

The utility model discloses a three-wheeled sports car with retarding and self-locking functions, which comprises a front car frame, a rear car frame, a damping component, a retarding mechanism and a self-locking mechanism, wherein the front car frame is hinged with a cart frame through a large joint; the rear wheel is also provided with a self-locking mechanism; the sports car carries the function of slowing down, auto-lock and shock attenuation in the open air, guarantees security and travelling comfort when the sports car is used in the open air like this.

Description

Three-wheeled sports car with retarding and self-locking functions

Technical Field

The utility model relates to the field of children carts, in particular to a three-wheeled sports car with a retarding and self-locking function.

Background

The child trolley used outdoors is large in tire ratio, so that the child trolley with large tire ratio is used as a sports trolley, the sports trolley needs to be stored safely in the outdoor terrain environment due to the fact that the sports trolley is complex in use, meanwhile, the sports trolley is generally used outdoors due to the fact that the outdoor environment is complex, damping is carried out when the sports trolley is used, the existing three-wheeled sports trolley is generally provided with a rigid mechanism, the damping mechanism is not additionally arranged for damping the three-wheeled sports trolley, meanwhile, when the sports trolley is used outdoors, frequent ascending and descending are needed, and therefore the sports trolley needs to be retarded and self-locked to realize the safety of the sports trolley in outdoor use.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the three-wheeled sports car with the retarding and self-locking functions, and the sports car is carried with the retarding, self-locking and shock absorbing functions in the outdoor, so that the safety and the comfort of the sports car in the outdoor use are ensured.

To achieve the above object, the present utility model provides: the utility model provides a tricycle with retarding, self-locking function, including preceding frame, back frame, damper, retarder and self-locking mechanism, wherein preceding frame articulates with the shallow frame through big joint, installs the front wheel on preceding frame, and the shallow frame articulates with back frame through the joint, is provided with damper on the back frame, installs the back wheel on the back frame, is provided with retarder on the back wheel, retarder is connected with the brake cable, and the other end of brake cable is installed on the handle and the handle is installed on the shallow frame; the rear wheel is also provided with a self-locking mechanism, and the rear wheel is locked through the self-locking mechanism.

Preferably, the retarding mechanism comprises a retarding disc, a pressing component and a return spring, wherein the retarding disc is arranged on the inner side of each rear wheel, the pressing component is arranged outside the retarding disc, one end of the pressing component is hinged to the rear frame, the other end of the pressing component is connected with a brake cable, the return spring is sleeved on one end, connected with the pressing component, of the brake cable, one end of the return spring is propped against the rear frame, and the other end of the return spring is propped against the pressing component.

Preferably, the pressing component is an arc pressing block, a tooth slot is arranged at the inner side of the arc pressing block, and when the speed is retarded, the tooth slot at the inner side of the arc pressing block is contacted with the retarding disc.

Preferably, the self-locking mechanism comprises a self-locking hole, locking pins and a pedal, wherein a connecting pipe is fixed on the inner side of the mounting seat, a plurality of self-locking holes are arranged on the inner side of the rear wheel and distributed in an annular array, through holes are formed in the mounting seat, the locking pins which are sequentially embedded into the self-locking holes are inserted into the through holes, and the other ends of the locking pins extend into the connecting pipe to be connected with the pedal; the connecting pipe is sleeved with a rotary drum, the rotary drum is sleeved on the connecting pipe to rotate, a pedal is fixed on the rotary drum, the rotary drum is rotated through the pedal, a notch is formed in the connecting pipe and located in the rotary drum, a rotary plate is arranged in the connecting pipe, two side faces of the rotary plate are spiral faces, step faces are formed in the spiral faces, a linkage rod is placed in the connecting pipe, a spring is arranged between the outer wall of the linkage rod and the inside of the connecting pipe, the linkage rod is fixed with a lock pin, the linkage rod abuts against the spiral faces, a connecting sheet is fixed between the rotary plate and the rotary drum, and the connecting sheet slides in the notch.

Preferably, the rear frame is divided into an upper section and a lower section, the two sections of rear frames are hollow pipes, sliding rods are inserted into the two sections of rear frames, buffer springs are sleeved on the sliding rods, and two ends of each buffer spring are propped against the two sections of rear frame.

Preferably, a mounting seat is arranged at the bottom of the rear frame, the rear wheel is mounted on the rear frame through the mounting seat, a mounting column is mounted on the rear wheel through a bearing, a mounting hole for the mounting column to be inserted into is formed in the mounting seat, an annular clamping groove is formed in the mounting column, and a rubber sleeve clamped in the clamping groove is embedded in the mounting hole.

Compared with the prior art, the utility model has the advantages that: the sports car carries the function of slowing down, auto-lock and shock attenuation in the open air, guarantees security and travelling comfort when the sports car is used in the open air like this.

Drawings

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is a front view of the present utility model.

Fig. 3 is a schematic view of the retarding mechanism of the present utility model.

FIG. 4 is a schematic view of the self-locking mechanism of the present utility model.

Fig. 5 is a schematic diagram of a rotary plate and a connecting pipe according to the present utility model.

Fig. 6 is a schematic view of a rotary plate according to the present utility model.

Wherein, 1, a front frame, 2, a rear frame, 3, a shock absorption component, 4, a sliding rod, 5, a buffer spring, 9, a retarding mechanism, 10, a retarding disc, 11, a pressing component, 12, an arc pressing block, 13, a tooth socket, 14, a return spring, 15, a self-locking mechanism, 16, a self-locking hole, 17, a lock pin, 18 and a pedal, 19, connecting pipes, 20, rotating drums, 21, notches, 22, rotating plates, 23, step surfaces, 24, linkage rods, 25, connecting sheets, 26, rear wheels, 27, brake wires, 28, handles, 29, mounting seats, 30, mounting columns, 31, mounting holes, 32, clamping grooves, 33, rubber sleeves, 34, pushing frames, 35 and large joints.

Description of the embodiments

The present utility model will now be further elucidated with reference to the accompanying drawings.

As shown in fig. 1-6, a three-wheeled sports car with a retarding and self-locking function comprises a front frame 1, a rear frame 2, a damping component 3, a retarding mechanism 9 and a return spring 15, wherein the front frame 1 is hinged with a cart frame 34 through a large joint 35, front wheels are arranged at the front end of the front frame 1, the cart frame 34 is hinged with the rear frame 2 through a bearing and a bearing seat, the damping component 3 is arranged on the rear frame 2, the damping component 3 is used for damping the rear frame 2, rear wheels 26 are arranged on the rear frame 2, a retarding mechanism 9 is arranged on the rear wheels 26, and the three-wheeled sports car is retarded through the retarding mechanism 9, so that the safety of the three-wheeled sports car is ensured when the three-wheeled sports car is used outdoors, the retarding mechanism 9 is connected with a brake cable 27, the other end of the brake cable 27 is arranged on a handle 28 and the handle 28 is arranged on the cart frame 34, and the retarding mechanism 9 is controlled to advance the rear wheels 26 through the handle on the cart frame 34; the self-locking mechanism 15 is further arranged on the rear wheel 26, the rear wheel 26 is locked through the self-locking mechanism 15, so that the rear wheel is locked, the locking of the three-wheeled sports car is realized, the sports car has the functions of retarding, self-locking and shock absorption, and the safety and the comfort of the sports car in outdoor use are guaranteed.

The mounting seat 29 is fixed at the bottom of the rear frame 2 in a bolt fastening mode, the rear wheel 26 is mounted on the rear frame 2 through the mounting seat 29, the mounting column 30 is mounted on the center of the rear wheel 26 through a bearing, the mounting seat 29 is provided with a mounting hole 31 for the mounting column 30 to be inserted into, the mounting column 30 is provided with an annular clamping groove 32, the inner wall of the mounting hole 31 is embedded with a rubber sleeve 33 clamped in the clamping groove 32, and when the mounting column 30 is inserted into the clamping groove 32, the mounting column 30 is clamped in the clamping groove 32.

The retarder mechanism 9 comprises a retarder disc 10, a pressing component 11 and a return spring 14, wherein the retarder disc 10 is arranged on the inner side surface of each rear wheel 26 in a bolt fastening mode, the pressing component 11 is arranged outside the retarder disc 10, one end of the pressing component 11 is hinged to the rear frame 2 (namely, one end mounting seat 29 of the pressing component 11), the pressing component 11 rotates on the rear frame 2, the pressing component 11 presses on the outer wall of the retarder disc 10, friction retarding is realized on the retarder disc 10 by pressing the pressing component, the other end of the pressing component 11 is connected with a brake cable 27, the return spring 14 is sleeved on one end, connected with the pressing component 11, of the brake cable 27, one end of the return spring 14 abuts against the rear frame 2 (the other end of the return spring 14 abuts against the pressing component 11, and the pressing component 11 swings left (namely anticlockwise) through the brake cable 27), the other end (right end) of the return spring 14 abuts against the pressing component 11, when the brake cable 27 does not have the tensile force, and the other end (right end) of the return spring 14 abuts against the pressing component 11, and the other end (namely, the return spring 14 swings clockwise) under the action of the brake cable 10, and the action of the brake cable 14 is separated from the clockwise (namely, the return spring).

The pressing component 11 is an arc pressing block 12, the inner side of the arc pressing block 12 is provided with tooth grooves 13, and when the speed is retarded, the tooth grooves 13 on the inner side of the arc pressing block 12 are contacted with the outer wall of the retarding disc 10 for retarding.

The self-locking mechanism 15 comprises a self-locking hole 16, a locking pin 17 and a pedal 18, wherein a connecting pipe 19 is fixed on the inner side of a mounting seat 29 (a groove body for the connecting pipe 19 to extend is formed on the inner side of the mounting seat 29, two ends of the connecting pipe 29 extend into the groove body of the mounting seat 29), a plurality of self-locking holes 16 are formed on the inner side of a rear wheel 26 and distributed in an annular array (the self-locking holes 16 are formed on a retarder disk 10), a through hole is formed on the mounting seat 29, the locking pin 17 sequentially embedded into the self-locking holes 16 is inserted into the through hole, and when self-locking is not needed, the locking pin 17 is retracted into the through hole and separated from the self-locking hole 16, and the other end of the locking pin 17 extends into the connecting pipe 19 to be connected with the pedal 18; a rotary drum 20 is sleeved on a connecting pipe 19, the rotary drum 20 is sleeved on the connecting pipe 19 for rotation, a pedal 18 is fixed on the rotary drum 20 in an integral injection molding mode, the pedal 18 realizes the rotation of the rotary drum 20, a notch 21 is formed in the connecting pipe 19 and is positioned in the rotary drum 20, a rotary plate 22 is arranged in the connecting pipe 19, two side surfaces of the rotary plate 22 are spiral surfaces, a step surface 23 is formed on the spiral surfaces, a linkage rod 24 is placed in the connecting pipe 19, the linkage rod 24 slides in the connecting pipe 19, a spring (the spring enables the linkage rod to abut against the spiral surface, namely, the spring enables the linkage rod to move towards the spiral surface and to be pressed on the spiral surface) is fixed between the linkage rod 24 and a lock pin 17 in a welding mode, the linkage rod 24 abuts against the spiral surface, when the screw surface rotates, the linkage rod 24 stretches along the screw surface, when the linkage rod 24 is propped against the step surface of the screw surface, the lock pin 17 connected with the linkage rod 24 stretches into the self-locking hole 16, thus completing self-locking of the rear wheel, the connecting sheet 25 is fixed between the rotating plate 22 and the rotating cylinder 20 in a welding way and slides in the notch 21, thus realizing linkage of the rotating cylinder 20 and the rotating plate 22, when the pedal is stepped, the rotating cylinder and the rotating plate rotate, the screw surface rotates, and as the screw surfaces are both sides of the rotating plate, when the screw surface rotates, the linkage rod moves backwards along the inclined surface of the screw surface, thus the lock pin is inserted into the self-locking hole to form self-locking, when the linkage rod is propped against the step surface of the rotating plate, the lock pin completely stretches into the self-locking hole, the step surface is a plane, when the pedal swings upwards, the linkage rod leaves the step surface to be in contact with the spiral surface, and the lock pin leaves the self-locking hole due to the action of the spring, so that the self-locking state is released.

The rear frame 2 is divided into an upper section and a lower section, the two sections of rear frames 2 are hollow pipes, a sliding rod 4 is inserted into the two sections of rear frames 2, a buffer spring 5 is sleeved on the sliding rod 4, and two ends of the buffer spring 5 are propped against the two sections of rear frames.

Claims (6)

1. The tricycle with the retarding and self-locking functions comprises a front frame, a rear frame, a damping component, a retarding mechanism and a self-locking mechanism, wherein the front frame is hinged with a cart frame through a large joint, a front wheel is installed on the front frame, and the cart frame is hinged with the rear frame through a joint; the rear wheel is also provided with a self-locking mechanism, and the rear wheel is locked through the self-locking mechanism.

2. The three-wheeled sports car with the retarding and self-locking functions according to claim 1, wherein the retarding mechanism comprises a retarding disc, a pressing component and a return spring, wherein the retarding disc is arranged on the inner side of each rear wheel, the pressing component is arranged outside the retarding disc, one end of the pressing component is hinged to the rear car frame, the other end of the pressing component is connected with a brake cable, the return spring is sleeved on the end, connected with the pressing component, of the brake cable, one end of the return spring is propped against the rear car frame, and the other end of the return spring is propped against the pressing component.

3. The three-wheeled sports car with retarding and self-locking functions according to claim 2, wherein the pressing component is an arc pressing block, tooth grooves are formed in the inner side of the arc pressing block, and when retarding, the tooth grooves in the inner side of the arc pressing block are in contact with the retarding disc.

4. The three-wheeled sports car with retarding and self-locking functions according to claim 3, wherein the self-locking mechanism comprises self-locking holes, locking pins and pedals, a connecting pipe is fixed on the inner side of the mounting seat, a plurality of self-locking holes are arranged on the inner side of the rear wheel and distributed in an annular array, through holes are formed in the mounting seat, the locking pins which are sequentially embedded into the self-locking holes are inserted into the through holes, and the other ends of the locking pins extend into the connecting pipe to be connected with the pedals; the connecting pipe is sleeved with a rotary drum, the rotary drum is sleeved on the connecting pipe to rotate, a pedal is fixed on the rotary drum, the rotary drum is rotated through the pedal, a notch is formed in the connecting pipe and located in the rotary drum, a rotary plate is arranged in the connecting pipe, two side faces of the rotary plate are spiral faces, step faces are formed in the spiral faces, a linkage rod is placed in the connecting pipe, a spring is arranged between the outer wall of the linkage rod and the inside of the connecting pipe, the linkage rod is fixed with a lock pin, the linkage rod abuts against the spiral faces, a connecting sheet is fixed between the rotary plate and the rotary drum, and the connecting sheet slides in the notch.

5. The three-wheeled sport car with the retarding and self-locking functions according to claim 4, wherein the rear car frame is divided into an upper section and a lower section, the two sections of rear car frames are hollow tubes, sliding rods are inserted into the two sections of rear car frames, buffer springs are sleeved on the sliding rods, and two ends of each buffer spring are propped against the two sections of rear car frames.

6. The three-wheeled sports car with the retarding and self-locking functions according to claim 5, wherein a mounting seat is arranged at the bottom of the rear car frame, the rear car wheel is mounted on the rear car frame through the mounting seat, a mounting column is mounted on the rear car wheel through a bearing, a mounting hole for the mounting column to be inserted into is formed in the mounting seat, an annular clamping groove is formed in the mounting column, and a rubber sleeve clamped in the clamping groove is embedded in the mounting hole.