CN205469608U - Electric bicycle with central authorities' bumper shock absorber - Google Patents

Abstract

The utility model provides an electric bicycle with central authorities' bumper shock absorber, including parts such as frame, saddle, rear wheel, preceding wheel, standpipe, central bumper shock absorbers, preceding wheel is installed through shock attenuation front fork device in the standpipe bottom, the handlebar device is installed on standpipe upper portion, central authorities' bumper shock absorber includes guide pillar, connecting rod, spring and baffle, the connecting rod both ends articulate on shock attenuation front fork device, guide pillar one end articulates in the connecting rod middle part, and the guide pillar other end is connected with the handlebar device, the spring is worn to locate on the guide pillar, the baffle is worn to locate on the guide pillar at spring both ends respectively for it is spacing to the spring. The central bumper shock absorber of this product is installed between frame and front fork, is used for buffering, decay to come from vibrations and impact before automobile body and the wheel, and the structure of mono -pole central authorities bumper shock absorber has promoted the shock attenuation efficiency of vehicle greatly, has improved the travelling comfort that traveles of vehicle, has reduced the design space of bumper shock absorber, has practiced thrift the design cost.

Description

electric bike with central shock absorber

technical field

The utility model relates to the field of bicycles, in particular to an electric bicycle with a central shock absorber.

Background technique

With the rapid development of my country's economy, energy and environmental protection have become two major problems in today's society. In order to effectively protect the environment and resources. Government departments have taken many effective measures to restrict the licensing of motorcycles and fuel mopeds, but they have also brought a lot of inconvenience to people. Due to the acceleration of urban construction in various places in recent years, people's daily life space is also constantly expanding, and it is difficult for ordinary bicycles to meet people's transportation needs.

Traditional bicycles generally do not have shock absorbers. When driving on rough roads, bicycles are often difficult to control the direction due to bumps, which not only increases the journey time, but also makes users suffer from bumps. At present, some bicycles are also equipped with shock absorbers. For example, most electric bicycle products currently use double-column front shock absorbers to realize the shock absorber function. Installation is inconvenient.

Utility model content

In order to solve the above technical problems, the utility model provides an electric bicycle with a central shock absorber.

The utility model discloses an electric bicycle with a central shock absorber, which comprises a vehicle frame, a vehicle seat, and a central shock absorber. The rear part of the vehicle frame is equipped with a rear wheel, and the rear wheel shaft of the rear wheel is equipped with a The hub motor and the rear wheel disc, the middle part of the frame is equipped with a central shaft sleeve, the central shaft sleeve is equipped with a central shaft, the central shaft is equipped with a front wheel disc, and the two ends of the central shaft are equipped with pedals device, the front wheel disc and the rear wheel disc are connected by a chain, a standpipe is installed on the front of the frame, a handlebar device is installed on the upper part of the standpipe, and a front wheel is installed on the bottom of the standpipe through a shock-absorbing front fork device. ;

The central shock absorber includes a guide post, a connecting rod, a spring and a baffle. The devices are connected, the spring is threaded on the guide post, and the baffles are respectively threaded on the guide post at both ends of the spring to limit the position of the spring.

Further, the handlebar device includes an instrument case and handles installed on both sides of the instrument case.

Further, the shock-absorbing front fork device includes a front fork, a first connecting piece and a second connecting piece, and the front fork is connected to the standpipe and the instrument case through the first connecting piece and the second connecting piece respectively.

Further, the front fork is configured as a sheet structure.

Further, the shock-absorbing front fork device is provided with a pair, which are respectively arranged on both sides of the front wheel shaft.

Further, both ends of the connecting rod are hinged on the second connecting piece.

Further, one end of the guide post is hinged to the middle of the connecting rod, and the other end of the guide post is connected to the instrument case.

Further, the vehicle frame includes a lower tube, a middle tube, two upper tubes and a rear tube, the front ends of the two upper tubes are respectively connected to the front ends of the lower tubes, and the front ends of the two rear tubes are respectively connected to the rear ends of the lower tubes, The rear ends of the two rear tubes and the upper tube are respectively connected to both sides of the rear axle, the middle tube is fixed between the upper tube and the lower tube; a battery is installed between the lower tube and the middle tube, and the battery Drive the hub motor to run.

Further, a hub motor is installed on the rear axle of the rear wheel, a battery is installed between the down tube and the middle tube, and the battery drives the hub motor to run.

Further, it also includes a vehicle seat, the front part of the vehicle seat is fixed on the rear part of the first box through the first connecting rod, and the two sides of the rear part of the vehicle seat are respectively connected with the two upper tubes above the rear wheels through the second connecting rod .

Adopting the above-mentioned technical scheme, the technical effects produced by the utility model are as follows: the central shock absorber of this product is installed between the frame and the front fork to buffer and attenuate the vibration and impact from the front of the vehicle body and the wheels, and the single-pillar central The structure of the shock absorber greatly improves the shock absorption efficiency of the vehicle, improves the driving comfort of the vehicle, reduces the design space of the shock absorber, and saves the design cost. The front fork of this product adopts a sheet structure, which can increase the stress area of the load, buffer and attenuate the vibration and impact from the front of the body and wheels, and improve the driving comfort of the vehicle.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions The accompanying drawings are some implementations of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative work.

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

Fig. 2 is the side view of Fig. 1;

Fig. 3 is the structural representation of central shock absorber;

Fig. 4 is the side view of Fig. 3;

Fig. 5 is the schematic structural view of pedal device;

Fig. 6 is a sectional view of A-A direction in Fig. 5;

Fig. 7 is a schematic cross-sectional view of the central axis;

Figure 8 is a schematic structural view of the battery box;

Reference signs:

1-frame; 2-seat; 3-rear wheel; 4-pedal device; 5-standpipe; 6-handlebar device; 7-shock-absorbing front fork device; 8-front wheel; 9-central shock absorber Device; 10-battery box; 11-center shaft sleeve; 12-center shaft; 13-lower tube; 14-middle tube; 15-upper tube; 16-back tube; 20-connecting seat; 21-first connecting rod ; 22-second connecting rod; 30-electric control box; 41-crank; 42-crank shaft; 43-pedal; Positioning beads; 61-instrument case; 62-handle; 71-front fork; 72-first connector; 73-second connector; 91-guide post; 92-connecting rod; 93-spring; 94-stop Plate; 101-main shell; 102-radiating body; 103-radiating fin; 121-square hole; 122-card slot; 301-first box; 302-second box; 421-step hole; bit slot.

detailed description

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

Please refer to Figure 1 and Figure 2;

The utility model discloses an electric bicycle with a central shock absorber, comprising a vehicle frame 1 and a vehicle seat 2 installed on the vehicle frame 1;

The rear part of the vehicle frame 1 is equipped with a rear wheel 3, a hub motor and a rear wheel disc are installed on the rear axle of the rear wheel 3, and a central axle sleeve 11 is installed in the middle of the vehicle frame 1, and the central axle sleeve 11 wears A central shaft 12 is installed, and a front wheel disc is mounted on the central shaft 12, pedal devices 4 are installed at both ends of the central shaft 12, and the front wheel disc and the rear wheel disc are connected by a chain;

A standpipe 5 is installed on the front of the vehicle frame 1, a handlebar device 6 is installed on the top of the standpipe 5, and a front wheel 8 is installed on the bottom of the standpipe 5 through a shock-absorbing front fork device 7;

The central axis 12 is driven to rotate by the pedal device 4, and then the front wheel is driven to run by the chain to drive the rear wheel to realize the cycling mode;

Specifically, the vehicle frame 1 includes a down tube 13, a middle tube 14, two upper tubes 15 and two rear tubes 16;

The front end of the down tube 13 is provided with a standpipe 5, and the rear end of the down tube 13 is connected with two parallel rear tubes 16, and the rear ends of the rear tubes 16 are respectively connected to the rear axles of the rear wheels 3. The left and right sides form a support;

The two upper tubes 15 are all arranged in a protruding arc shape in the middle, the front ends of the two upper tubes 15 are respectively connected to the front ends of the lower tube 13, and the rear ends of the two upper tubes 15 are respectively connected to the rear axle of the rear wheel 3 The left and right sides of the middle pipe 14 are fixed at the joints of the lower pipe 13 and the two rear pipes 16, forming a triangular support as a whole to enhance the support strength. A central shaft sleeve 11 is installed at the central shaft sleeve 11, and a central shaft 12 is penetrated in the central shaft sleeve 11, and the central shaft 12 is connected with the pedal device 4.

A battery is installed between the down tube 13 and the middle tube 14, and the battery drives the hub motor to run to realize the electric driving mode.

Preferably, the handlebar device 6 used in this product includes an instrument case 61 and handles 62 installed on both sides of the instrument case 61 , and the instrument case 61 is used for installing an instrument. For devices such as displays, the handle 62 installed on both sides of the instrument case 61 adopts a more general electric handle in the prior art, that is, the control of functions such as speed of the vehicle and brakes can be realized by rotating the handle.

Preferably, a pair of shock-absorbing front fork devices 7 used in this product are provided, and the two shock-absorbing front fork devices 7 are respectively arranged in parallel on both sides of the front wheel shaft.

Preferably, the shock-absorbing front fork device 7 includes a front fork 71, a first connecting piece 72 and a second connecting piece 73, the front fork 71 is connected to the vertical pipe 5 through the first connecting piece 72, and the front fork 71 is simultaneously It is connected with the instrument case 61 through the second connecting piece 73 .

Preferably, the front fork 71 used in this product is set as a sheet structure, and its overall shape is set to be similar to a fish fin. Compared with the tubular front fork 71 in the prior art, the front fork 71 of this product can effectively increase the The large force-bearing area evenly divides the impact load generated by the vehicle frame 1 and the front wheel 8.

Preferably, the product is also provided with a central shock absorber 9 , one end of the central shock absorber 9 is connected to the instrument case 61 , and the other end of the instrument case 61 is connected to the second connecting member 73 .

Please refer to Fig. 3 and Fig. 4, the specific scheme is: the central shock absorber 9 includes a guide column 91, a connecting rod 92, a spring 93 and a baffle plate 94, and the two ends of the connecting rod 92 are respectively hinged on the left and right sides of the front wheel 8. On the two second connectors 73 on the side, one end of the guide post 91 is hinged to the middle of the connecting rod 92, the other end of the guide post 91 is connected to the instrument case 61, and the spring 93 is passed through the guide post 91. The above-mentioned baffles 94 respectively pass through the guide posts 91 located at the two ends of the spring to limit the position of the spring.

The central shock absorber 9 of this product can accept the impact load that the front fork 71 comes from the wheel and is subjected to the road surface; it can also accept the load that the vehicle frame 1 carries the driver and the vehicle. Therefore, the central shock absorber 9 is installed between the above-mentioned two force-receiving mechanisms to form a unique front shock absorber, which attenuates impact loads from two directions at the same time. Moreover, the connection between the two front forks 71 acts on one end of the shock absorber, so that the impact load can be more evenly transmitted to the central shock absorber 9, thereby effectively solving the problem that the uneven force on both sides interferes with its shock absorber. Shock effect.

Please refer to Fig. 5-Fig. 7, described pedal device 4 comprises crank 41, crank shaft 42 and pedal 43; Step hole 421, in step hole 421, trigger lever 44 is equipped with, and a button 45 is installed on one end of trigger lever 44, and limit spring 46 is worn on trigger lever 44, and one end of limit spring 46 is connected with step hole 421. The other end of the limit spring 46 is connected with the button 45, the trigger rod 44 is also provided with an arc-shaped limit groove 441, and the position of the crankshaft 42 corresponding to the arc-shaped limit groove is provided with a limit Positioning block 47, positioning beads 48 are accommodated between the limiting block 47 and the arc-shaped limiting groove 441; when the limiting spring 46 is in the reset state, the outer edge of the arc-shaped limiting groove 441 contacts the positioning beads 48, so that the positioning beads 48 The limit spring is exposed to the outside of the crankshaft 42 to the greatest extent; the limit spring is in a compressed state, and the concave part in the middle of the arc-shaped limit groove 441 contacts with the positioning ball 48, increasing the accommodation space between the arc-shaped limit groove 441 and the limit block 47, so that The positioning ball 48 is sunken inside the crankshaft 42 .

Both ends of the central shaft 12 are respectively provided with a square hole 121 for receiving the crankshaft 42 , and the square hole 121 is provided with a slot 122 for receiving the positioning ball 48 .

During installation, press the button 45 to make the spring in a compressed state, so that the positioning ball 48 sinks inside the crank shaft 42, and the crank shaft 42 is inserted into the square hole 121 of the central shaft 12. When the crank 41 moves to the preset position, Unclamp the button 45, under the rebound force of the limit spring, the positioning ball 48 is exposed to the outside of the crankshaft 42 to the greatest extent and is snapped into the corresponding draw-in groove 122 in the square hole 121, so that the crankshaft 42 and the middle fixed connection of shaft 12;

When dismounting, press the button 45 to make the positioning bead 48 sink inside the crankshaft 42, disengage from the draw-in groove 122 in the square hole 121, and apply an outward pulling force to the crankshaft 42, so that the crankshaft 42 can be smoothly connected with the center shaft 12 to disengage.

This product also includes a battery box 10, the battery box 10 is used to store the battery, isolate the battery from the outside world, prevent the battery from being exposed to wind and sun for a long time and affect the service life, and protect the battery. The body 10 is also provided with mounting holes for wearing external circuits.

Preferably, the battery case 10 is installed between the lower pipe 13 and the middle pipe 14 through the connecting seat 20, and the battery case 10 can be fixed through one or more connecting seats 20. In this embodiment, three connecting seats 20 are provided. One of the connecting seats 20 is installed on the middle tube 14, and the other two connecting seats 20 are respectively installed on the lower tube 13 from top to bottom, and the battery case 10 is connected to the three connecting seats 20 respectively. The above-mentioned three-point fixed connection makes the connection between the battery case 10 and the middle tube 14 and the down tube 13 more stable.

Please refer to FIG. 8 , preferably, the battery box 10 includes a main casing 101, the main casing 101 is used for installing a battery, and a protruding cylindrical radiator 102 is provided on the upper part of the main casing 101, In this embodiment, two cylindrical radiators 102 are provided, and the two radiators 102 are respectively arranged on the upper part of the main casing 101. The function of the radiators 102 is to improve the heat dissipation effect of the battery box 10, especially in summer Because the external temperature is too high, the battery will generate a lot of heat energy, which will affect the performance of the battery, and the heat sink 102 of this product can effectively increase the contact area with the external air and improve the heat dissipation performance.

Preferably, the heat sink 102 is also provided with several heat sinks 103, and several heat sinks 103 are arranged on the heat sink 102 in layers. improved.

Preferably, a square hole 121 for accommodating the crankshaft 42 is provided on the connecting seat 20 where the battery case 10 is connected with the lower tube 13 and the middle tube 14, and the structure of the square hole 121 is the same as that of the square hole 121 on the center shaft 12 structure; that is, a slot 122 for accommodating the positioning ball 48 on the crankshaft 42 is provided in the square hole 121 on the connecting seat 20, and the crank shaft 42 can be installed in any connecting seat through the matching form of the positioning ball 48 and the slot 122 20, the installation method of the crankshaft 42 and the connecting seat 20 is completely equal to the installation method of the crankshaft 42 and the central shaft 12, and will not be repeated here (because of the square hole on the connection seat and the draw-in groove in the square hole and the central shaft) The square hole and the card slot have the same structure, only the square hole of the connecting seat is shown in the accompanying drawing 1, and the card slot is not shown).

The advantage of adopting the above-mentioned technology is that the redundant function of the pedal device 4 is eliminated during the electric driving process of the electric vehicle, and the pedal device 4 is quickly and conveniently fixed at a designated position, so that the user's feet can be comfortably placed on the pedal device 4 , this design concept is relatively simple and easy to operate, and at the same time, it can eliminate the potential safety hazard caused by the rotation of the pedal device 4 with the wheels during electric driving.

Please refer to Fig. 1, this product also includes an electric control box 30, and the electric control box 30 includes a first box body 301 and a second box body 302 respectively for installing electric control components, and the first box body 301 is installed On the top of the upper tube 15 , the second box body 302 is installed on the middle tube 14 .

Preferably, the first box body 301 is set in a streamlined shape (similar to the shape of a motorcycle fuel tank), and the radian of its overall shape matches the radian of the upper pipe 15. The design of the above-mentioned shape is more in line with the curve of the human body, so that people can The abdomen can be attached to the first box body 301 when driving, which increases the riding experience and facilitates exerting force when riding.

In this embodiment, the electrical components are respectively installed in the first box body 301 and the second box body 302, so that the electrical components are isolated from the outside world, avoiding the aging and short circuit of the electrical components due to long-term exposure, and prolonging the use of the electrical components At the same time, it ensures the safety performance of the electric bicycle itself during riding.

Preferably, the position of the vehicle seat 2 in this embodiment is selected as a rear-mounted type; specifically, the front of the vehicle seat 2 is fixed to the rear of the first box body 301 through the first connecting rod 21, and the two sides of the rear of the vehicle seat 2 respectively pass through The second connecting rod 22 is connected with two upper tubes 15 above the rear wheel 3. In order to increase the damping performance of the vehicle seat 2, springs can be worn on the connecting rods on both sides at the rear of the vehicle seat 2 to reach the shock absorbing effect.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the embodiments of the present utility model Scope of technical solutions.

Claims (10)

1. An electric bicycle with central shock absorber is characterized in that: comprise vehicle frame, vehicle seat, central shock absorber, described vehicle frame rear portion is equipped with rear wheel, is installed on the rear axle of described rear wheel There are hub motors and rear wheel discs, and a central shaft sleeve is installed in the middle of the frame. The central shaft sleeve is equipped with a central shaft, and the central shaft is equipped with a front wheel disc. The two ends of the central shaft are equipped with pedals. device, the front wheel disc and the rear wheel disc are connected by a chain, a standpipe is installed on the front of the frame, a handlebar device is installed on the upper part of the standpipe, and a front wheel is installed on the bottom of the standpipe through a shock-absorbing front fork device. ; The central shock absorber includes a guide post, a connecting rod, a spring and a baffle. The devices are connected, the spring is threaded on the guide post, and the baffles are respectively threaded on the guide post at both ends of the spring to limit the position of the spring. 2 . The electric bicycle with a central shock absorber according to claim 1 , wherein the handlebar device includes an instrument case and handles mounted on both sides of the instrument case. 3. The electric bicycle with central shock absorber according to claim 2, characterized in that: said shock absorbing front fork device comprises a front fork, a first connecting piece and a second connecting piece, and said front fork passes through respectively The first connecting piece and the second connecting piece are connected with the vertical pipe and the instrument case. 4. The electric bicycle with a central shock absorber according to claim 3, characterized in that: the front fork is configured as a sheet structure. 5. The electric bicycle with a central shock absorber according to claim 3, characterized in that: said shock absorber front fork device is provided with a pair, which are respectively arranged on both sides of the front wheel shaft. 6. The electric bicycle with a central shock absorber according to claim 5, characterized in that: both ends of the connecting rod are hinged on the second connecting member. 7. The electric bicycle with a central shock absorber according to claim 6, wherein one end of the guide post is hinged to the middle of the connecting rod, and the other end of the guide post is connected to the instrument case. 8. The electric bicycle with a central shock absorber according to claim 7, characterized in that: the vehicle frame comprises a lower tube, a middle tube, two upper tubes and a rear tube, and the front ends of the two upper tubes are connected with the lower tube respectively. The front ends of the tubes are connected, the front ends of the two rear tubes are respectively connected with the rear ends of the down tubes, the rear ends of the two rear tubes and the upper tube are respectively connected to both sides of the rear axle, and the middle tube is fixed between the upper tube and the lower tube. between the tubes; a battery is installed between the down tube and the middle tube, and the battery drives the hub motor to run. 9. The electric bicycle with a central shock absorber according to claim 8, characterized in that: a hub motor is installed on the rear axle of the rear wheel, and a battery is installed between the lower tube and the middle tube, so The battery drives the in-wheel motors. 10. The electric bicycle with a central shock absorber according to any one of claims 1-9, characterized in that: it also includes a vehicle seat, and the front part of the vehicle seat is fixed on the first box through the first connecting rod The body rear portion and the two sides of the vehicle seat rear portion are respectively connected with two upper tubes above the rear wheel through the second connecting rod.