CN220904693U

CN220904693U - Gear shifting structure of electric tricycle

Info

Publication number: CN220904693U
Application number: CN202323053043.XU
Authority: CN
Inventors: 刘小利
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-11-13
Filing date: 2023-11-13
Publication date: 2024-05-07
Anticipated expiration: 2033-11-13

Abstract

The utility model discloses a gear shifting structure of an electric tricycle, which comprises a mounting frame and a gear lever, wherein the mounting frame comprises a frame body, a mounting shaft is fixedly arranged on the frame body, a first locking groove and a second locking groove are further formed in the frame body, the gear lever comprises a lever tube, one end of the lever tube is provided with a hinge part and is rotationally connected with the mounting shaft through the hinge part, a connecting lug is further arranged on the hinge part, a lock pin mechanism is arranged in the lever tube, the lock pin mechanism comprises a first sealing ring and a second sealing ring, the first sealing ring and the second sealing ring are respectively and fixedly connected between the inner walls of the lever tube, an unlocking piston mechanism and a lock pin piston mechanism are respectively and slidably connected on the first sealing ring and the second sealing ring, hydraulic oil is filled in a tube section between the first sealing ring and the second sealing ring in the lever tube, and the service life of the gear shifting structure of the electric tricycle can be effectively prolonged by filling hydraulic oil in the lever tube as a transmission medium.

Description

Gear shifting structure of electric tricycle

Technical Field

The utility model relates to the field of machinery, in particular to a gear shifting structure of an electric tricycle.

Background

The electric tricycle is a three-wheel transport means for pulling goods or people, which uses a storage battery as power and a motor as a drive. The electric tricycle adopts a tubular high-capacity, left-right lining, deep discharging and traction type storage battery, can meet the requirement of continuous discharging during long-time work, and the storage battery is normally used for two years, the content is not reduced, and the electric tricycle can be additionally provided with a gear shifting mechanism for improving the safety and the energy consumption ratio, and can enable the gear shifting box to output the rotation power of a motor in different gear ratios by controlling the gear shifting box, so that the mutually adjustable coordination of rotating speed and torque is achieved, and the effects of saving electricity and saving labor are achieved. For this, the manual gear shifting mechanism of passive mechanical structure can be adopted to most electric tricycles, has simple structure compactness, convenient to use, reduces the advantage of maloperation, and the wide popularization of being convenient for all is driven through a transmission hard wire (iron wire) among the current electric tricycles gear shifting structure, and this kind of operation form has following problem: firstly, the operation hand feeling of the transmission iron wire is poor, and metal fatigue can occur to the iron wire after long-term repeated deformation; secondly, in the production process, the lever is completely assembled and then is simultaneously bent with the driving hard wire by a bending machine, and then the replacement of internal parts is difficult, so that the application number is as follows: CN202223170757.4 discloses an electric tricycle shift assembly, which comprises a connecting rack, handle and locking mechanism, a plurality of gear grooves have been seted up on the link, locking mechanism is including articulated locking pipe that sets up at the link, the locking pin, unlocking spring and flexible cable, the locking pin radially runs through the rear portion of locking pipe and slide along its axial in the locking pipe, unlocking spring is taut locking pin to the direction of keeping away from the gear groove through traction flexible cable, the handle includes the operating tube, button and locking spring, the operating tube can dismantle the intercommunication with the locking pipe, its front end passes through gum cover installation button, locking spring is taut locking pin to the mode that is close to the gear groove through traction flexible cable, and the butt button, compared with prior art's advantage lies in: the gear shifting locking mechanism has good unlocking feedback effect and is convenient to install, disassemble and replace.

However, the above solution still has a certain defect, and the inventor found that, in the above solution, a flexible cable is used as a transmission member instead of a hard iron wire in the prior art, so as to avoid the problem that the transmission effect is reduced along with the increase of the service time caused by the fatigue characteristic of metal, but the flexible cable is aged due to corrosion after long-time use, when the structural strength of the flexible cable is greatly reduced after aging, the flexible cable may break in a long-time stretching state, so that the transmission member in the electric tricycle gear shifting structure is disabled and cannot be used, inconvenience is caused in use, and the service life is relatively low.

How to invent an electric tricycle gear shifting structure to improve the problems becomes a problem to be solved urgently by the person skilled in the art.

Disclosure of utility model

In order to make up for the defects, the utility model provides an electric tricycle gear shifting structure, which aims to solve the problems that a flexible rope is used for replacing hard iron wires in the prior art as a transmission part, so that the transmission effect is reduced along with the increase of the service time caused by the fatigue characteristic of metal, but the flexible rope is aged due to corrosion and the like after being used for a long time, the structural strength of the flexible rope is greatly reduced after the flexible rope is aged, and the flexible rope is likely to break in a long-time stretching state, so that the transmission part in the electric tricycle gear shifting structure is invalid and cannot be used, inconvenience is caused in use, and the service life is relatively low.

The utility model is realized in the following way: the utility model provides an electric tricycle gear shifting structure, includes mounting bracket and shelves pole, the mounting bracket includes the support body, fixed mounting has the installation axle on the support body, still be provided with first locked groove and second locked groove on the support body, shelves pole includes the pole pipe, pole pipe one end is provided with articulated portion to rotate with the installation axle through articulated portion and be connected, still be provided with the engaging lug on the articulated portion, the inside lockpin mechanism that is provided with of pole pipe, lockpin mechanism includes first sealing ring and second sealing ring, first sealing ring and second sealing ring respectively fixed connection between pole pipe inner wall, sliding connection has unblock piston mechanism and lockpin piston mechanism on first sealing ring and the second sealing ring respectively, the inside hydraulic oil that is filled in the pipe section between first sealing ring and the second sealing ring of pole pipe.

In a preferred technical scheme of the utility model, a limiting rod is fixedly arranged on one side of the mounting shaft on the frame body.

In a preferred technical scheme of the utility model, an oil filling port communicated with the inside is formed in the outer wall of the rod pipe and between the first sealing ring and the second sealing ring, and a sealing plug is connected in the oil filling port in a threaded manner.

In a preferred technical scheme of the utility model, the unlocking piston mechanism comprises a first connecting rod, the first connecting rod is connected in a mounting hole penetrating through the middle of the first sealing ring in a sliding manner, one end of the first connecting rod, which is positioned below the first sealing ring, is fixedly connected with a first piston, the other end of the first connecting rod is fixedly connected with an unlocking button, and the unlocking button extends out of the rod pipe through an opening formed in one end of the rod pipe.

In a preferred technical scheme of the utility model, the lock pin piston mechanism comprises a second connecting rod, the second connecting rod is slidably connected in a mounting hole penetrating through the middle of the second sealing ring, one end of the second connecting rod above the second sealing ring is fixedly connected with a second piston, the other end of the second connecting rod is fixedly connected with a sliding column, the sliding columns are slidably mounted in a rod tube, two sides of the sliding column are fixedly connected with one ends of lock pins, the other ends of the two lock pins extend to the outside of the rod tube through sliding grooves arranged on two sides of the outer wall of one end of the rod tube and are in matched connection with a first locking groove or a second locking groove, one end of the sliding column, which is far away from one end of the second connecting rod, is fixedly connected with a spring, and the other end of the spring is fixedly connected to the inner wall of one end of the rod tube.

In a preferred embodiment of the utility model, the diameter of the locking pin corresponds to the inner diameters of the first locking groove and the second locking groove.

In a preferred technical scheme of the utility model, a holding part is fixedly sleeved at one end of the rod tube.

The beneficial effects of the utility model are as follows: according to the electric tricycle gear shifting structure obtained through the design, when the electric tricycle gear shifting structure is used, the hydraulic oil is filled in the rod tube to serve as a transmission medium, so that the problems that a metal transmission part such as an iron wire is deformed to affect transmission efficiency after long-time use due to metal fatigue characteristics or a flexible rope is used as a transmission connecting part to affect use due to failure of a transmission part caused by corrosion, aging and fracture of the rope after long-time use can be effectively avoided, and the service life of the electric tricycle gear shifting structure is greatly prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the overall structure provided by an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a mounting frame according to an embodiment of the present utility model;

FIG. 3 is a schematic perspective view of the overall structure of a gear lever according to an embodiment of the present utility model;

Fig. 4 is a schematic perspective view of the entire cross-sectional structure of a lever according to an embodiment of the present utility model.

In the figure: 1-mounting rack; 2-a gear lever; a 3-detent mechanism; 4-a grip; 101-a frame body; 102-mounting a shaft; 103-a first locking groove; 104-a second locking groove; 105-a limit rod; 201-a rod tube; 202-a hinge; 203-connecting lugs; 204-a chute; 205-an oil filling port; 206-sealing plug; 301-a first sealing ring; 302-a second sealing ring; 303-a first connecting rod; 304-an unlock button; 305-a first piston; 306-a second connecting rod; 307-second piston; 308-sliding column; 309 locking pin; 310-spring; 311-hydraulic oil.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, the present utility model provides a technical solution: the utility model provides an electric tricycle gear shifting structure, including mounting bracket 1 and shelves pole 2, mounting bracket 1 includes support body 101, fixed mounting has installation axle 102 on the support body 101, still be provided with first locked groove 103 and second locked groove 104 on the support body 101, shelves pole 2 includes pole pipe 201, pole pipe 201 one end is provided with articulated portion 202, and rotate with installation axle 102 through articulated portion 202 and be connected, still be provided with engaging lug 203 on articulated portion 202, pole pipe 201 inside is provided with lockpin mechanism 3, lockpin mechanism 3 includes first sealing ring 301 and second sealing ring 302, first sealing ring 301 and second sealing ring 302 are fixed connection respectively between the inner wall of pole pipe 201, sliding connection has unblock piston mechanism and lockpin piston mechanism on first sealing ring 301 and the second sealing ring 302 respectively, the inside pipe section that is located between first sealing ring 301 and the second sealing ring 302 of pole pipe 201 is filled with hydraulic oil 311.

Referring to fig. 2, a limit lever 105 is fixedly mounted on the frame 101 at one side of the mounting shaft 102, when the lock lever 2 is unlocked through the lock lever mechanism 3, the lock lever mechanism 3 and the first locking groove 103 are locked when the lock lever 2 rotates down to the maximum stroke to release the lock lever mechanism 3, and the lock lever mechanism 3 and the second locking groove 104 are locked when the lock lever 2 rotates up to the limit lever 105 group to release the lock lever mechanism 3, and the limit lever 105 is arranged to cooperate with the frame 101 to remind a user of the positions of the first locking groove 103 and the second locking groove 104, so that convenience in use is improved.

Referring to fig. 3 and 4, an oil filling port 205 communicated with the inside is provided on the outer wall of the rod tube 201 between the first sealing ring 301 and the second sealing ring 302, a sealing plug 206 is screwed in the oil filling port 205, and the sealing plug 206 can be removed during daily maintenance to replace or add hydraulic oil 311 in the rod tube 201 through the oil filling port 205, thereby ensuring convenience of daily maintenance.

Further, the unlocking piston mechanism comprises a first connecting rod 303, the first connecting rod 303 is slidably connected in a mounting hole penetrating through the middle of the first sealing ring 301, one end of the first connecting rod 303, which is located below the first sealing ring 301, is fixedly connected with a first piston 305, the other end of the first connecting rod 303 is fixedly connected with an unlocking button 304, the unlocking button 304 extends out of the rod pipe 201 through an opening formed in one end of the rod pipe 201, when the locking of the locking pin mechanism 3 and the first locking groove 103 or the second locking groove 104 is needed, the unlocking button 304 is pressed downwards, when the unlocking button 304 displaces inwards of the rod pipe 201, the first piston 305 is driven to synchronously displace downwards through the first connecting rod 303, so that pressure is applied to hydraulic oil 311, the locking pin mechanism is pushed to displace towards the other end of the rod pipe 201 through the hydraulic oil 311, and therefore the locking pin unlocking mechanism can be locked with the first locking groove 103 or the second locking groove 104, and the rod pipe 201 can be rotated freely to switch gears.

Further, the lock pin piston mechanism comprises a second connecting rod 306, the second connecting rod 306 is connected to the middle part of the second sealing ring 302 in a penetrating manner, a second piston 307 is fixedly connected to one end of the second connecting rod 306 above the second sealing ring 302, a sliding column 308 is fixedly connected to the other end of the second connecting rod 306, the sliding column 308 is slidably mounted in the rod pipe 201, two side surfaces of the sliding column 308 are fixedly connected with one ends of lock pins 309, the other ends of the two lock pins 309 extend to the outside of the rod pipe 201 through sliding grooves 204 arranged on two sides of the outer wall of one end of the rod pipe 201 and are connected with the first lock groove 103 or the second lock groove 104 in a matched manner, one end of the sliding column 308, which is far away from one end surface of the second connecting rod 306, of the spring 310 is fixedly connected to the inner wall of one end of the rod pipe 201, when the second piston 307 is subjected to pressure from hydraulic oil 311, the other end of the spring 310 is displaced to the other side, and accordingly the sliding column 308 is driven to move in the same direction through the second connecting rod 306, and accordingly the sliding column 308 drives the sliding column 309 to move in the same direction inside the rod pipe 201, the two lock pins 309 are synchronously, the two lock pins 309 are driven to slide in the sliding column 201, and move in the sliding column 103, and slide to the corresponding sliding grooves 103, and slide to the first lock pin 309 and the first lock pin 309 are driven to slide to the second lock pin 309, and the lock pin is released.

Further, the diameter of the locking pin 309 is identical to the inner diameters of the first locking groove 103 and the second locking groove 104, so that the locking pin 309 is ensured not to shake in the first locking groove 103 or the second locking groove 104, and thus the stability in use is ensured.

Further, the grip portion 4 is fixedly sleeved at one end of the lever tube 201, and comfort and operation feeling of a user in gear switching can be improved by arranging the grip portion 4 to be attached to the hand of the user.

Working principle: the electric tricycle is integrally installed at a proper position of the electric tricycle through the frame body 101, the rod pipe 201 and the electric tricycle inhaul cable assembly are connected through the connecting lug 203, the spring 310 applies acting force to the sliding column 308 in a normal locking state, two lock pins 309 are stably located at one end of the sliding groove 204, the two lock pins 309 are located outside the rod pipe 201 and are connected with the first lock groove 103 or the second lock groove 104 in a clamping mode, when the rod pipe 201 needs to be rotated to carry out gear switching, the unlocking button 304 is pressed downwards, the unlocking button 304 presses down the first piston 305 through the first connecting rod 303, the first piston 305 applies pressure to the hydraulic oil 311 after pressing down, so that the hydraulic oil 311 presses down the second piston 307, the second piston 307 is subjected to pressure from the hydraulic oil 311, and slides to the other side to drive the sliding column 308, so that the two lock pins 309 gradually slide to the other end of the sliding groove 204 to be separated from the clamping connection with the first lock groove 103 or the second lock groove 104, a user can switch gear through the angle of the rotating rod pipe 201 at the moment, when the gear is completed, the unlocking button 304 is released, the acting force of the spring 310 drives the sliding column 103 and the second lock pin 309 to drive the sliding column 308 to be connected with the new lock pin 308 to the second lock groove 104 to enable the metal wire to be connected with the corresponding transmission line to be used as a transmission part to cause fatigue, the transmission line can be greatly influenced by the transmission line, the transmission characteristics of the transmission line can be greatly, and the transmission line can be deformed, and the transmission line can be greatly has a transmission time, and the transmission quality of transmission quality is greatly improved, and the transmission quality is influenced by the transmission quality of transmission quality is improved, and the transmission quality of transmission quality can be used.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an electric tricycle gear shifting structure, its characterized in that, includes mounting bracket and shelves pole, the mounting bracket includes the support body, fixed mounting has the installation axle on the support body, still be provided with first locked groove and second locked groove on the support body, shelves pole includes the pole pipe, pole pipe one end is provided with articulated portion to rotate with the installation axle through articulated portion and be connected, still be provided with the engaging lug on the articulated portion, the inside lockpin mechanism that is provided with of pole pipe, lockpin mechanism includes first sealing ring and second sealing ring, first sealing ring and second sealing ring respectively fixed connection are between pole pipe inner wall, sliding connection has unblock piston mechanism and lockpin piston mechanism on first sealing ring and the second sealing ring respectively, the inside hydraulic oil that has filled in the pipe section between first sealing ring and the second sealing ring of pole pipe.

2. The electro-tricycle shift structure of claim 1, wherein: and a limit rod is fixedly arranged on one side of the mounting shaft on the frame body.

3. The electro-tricycle shift structure of claim 1, wherein: an oil filling port communicated with the inside is formed in the outer wall of the rod pipe and between the first sealing ring and the second sealing ring, and a sealing plug is connected in the oil filling port in a threaded mode.

4. The electro-tricycle shift structure of claim 1, wherein: the unlocking piston mechanism comprises a first connecting rod, the first connecting rod is connected in a mounting hole penetrating through the middle of the first sealing ring in a sliding mode, one end of the first connecting rod, which is located below the first sealing ring, is fixedly connected with a first piston, the other end of the first connecting rod is fixedly connected with an unlocking button, and the unlocking button extends out of the rod pipe through an opening formed in one end of the rod pipe.

5. The electro-tricycle shift structure of claim 1, wherein: the locking pin piston mechanism comprises a second connecting rod, the second connecting rod is slidably connected in a mounting hole penetrating through the middle of the second sealing ring, one end of the second connecting rod, which is located above the second sealing ring, is fixedly connected with a second piston, the other end of the second connecting rod is fixedly connected with a sliding column, the sliding column is slidably mounted in a rod tube, two sides of the sliding column are fixedly connected with one end of a locking pin, two ends of the locking pin extend to the outside of the rod tube through sliding grooves formed in two sides of the outer wall of one end of the rod tube and are connected with a first locking groove or a second locking groove in a matched mode, one end of the sliding column, which is far away from one end of the second connecting rod, is fixedly connected with one end of a spring, and the other end of the spring is fixedly connected with the inner wall of one end of the rod tube.

6. The electro-tricycle shift structure of claim 5, wherein: the diameter of the lock pin is consistent with the inner diameters of the first lock groove and the second lock groove.

7. The electro-tricycle shift structure of claim 1, wherein: the fixed cover in pole pipe one end is equipped with the gripping portion.