CN206231517U - Double-front wheel tricycle - Google Patents

Abstract

The utility model discloses double-front wheel tricycle, including vehicle frame and before and after vehicle frame both sides two front-wheels and a trailing wheel, under normality, two front-wheels and a trailing wheel are perpendicular to the ground；Under steering state, the front-wheel and trailing wheel are in non-perpendicular state with ground.The utility model deft design, simple structure, in steering state the setting for rolling is produced by making front-wheel and trailing wheel to steering direction simultaneously, so as to be conducive to the reduction of vehicle turning radius, increase flexibility, stationarity and the smoothness for turning to, the security for making vehicle turn at high speeds is greatly promoted, and improves the security of driving.

Description

Double-front wheel tricycle

Technical field

The utility model is related to a kind of tricycle, especially a kind of double-front wheel tricycle.

Background technology

Tricycle, as the term suggests, including three electric motor cars or bicycle or automobile of wheel, because it is relative to cart Many wheels are contacted with ground, are being easy to produce the wet-skid road surface of sideslip, there is very unique stability advantage, are significantly subtracted The possibility that small riding personnel sideslip is fallen down, under complicated landform ground surface environment, driving safety is substantially improved compared with two wheeler. The most structure of tricycle on the market is two trailing wheels of a front-wheel at present, such as Chinese patent CN201210089652.8 and Shown in CN201480014552.6.

Certainly, also there are some special reverse tricycles, with two front-wheels, one trailing wheel, such as Chinese patent Shown in CN200610170204.5 and CN201510774236.5, used as driving wheel, front-wheel is deflecting roller to trailing wheel.

But the steering structure due to tricycle is fixed with the main body rack at rear portion, relative cannot be transported between the two It is dynamic, due to the limitation of the self structure of main body rack, cause tricycle when turning to, the radius of turn of vehicle becomes big, narrow and small Be spatially steered and be difficult；If by increasing the steering angle of front-wheel, steering angle may be caused excessive, there are the feelings of accident Condition.

Further, since prior art front-wheel when turning to will not be rolled, but directly to causing vehicle in high-speed case It is lower easily to produce overturn accident.

Also, the overall structure of prior art is complex, especially the structure in two front wheels region, is not suitable for high-volume raw Produce.

Utility model content

The purpose of this utility model is exactly to solve the above-mentioned problems in the prior art, there is provided a kind of turn performance The double-front wheel tricycle for greatly improving.

The purpose of this utility model is achieved through the following technical solutions：

Double-front wheel tricycle, including vehicle frame and before and after vehicle frame both sides two front-wheels and a trailing wheel,

Under normality, two front-wheels and a trailing wheel are perpendicular to the ground；

Under steering state, the front-wheel and trailing wheel are in non-perpendicular state with ground.

Preferably, described double-front wheel tricycle, wherein：The vehicle frame include steering mechanism and respectively with the steering The main car frame and anchor link of mechanism's connection, when the front-wheel being set in the steering mechanism and being driven front-wheel steer and is turned to Incline, the afterbody of the main car frame sets the trailing wheel and its anchor link described in grafting of front end, and the main car frame can be relative The anchor link is defined the twist motion of angle and drives the rear wheel pitches.

Preferably, described double-front wheel tricycle, wherein：The steering mechanism includes the steering affixed with the main car frame Drive mechanism, one end of the pivotally connected two symmetrically arranged pull bars of steering driving mechanism, two pull bars it is another End pivotally connected one is used to install the flip piece of front-wheel respectively, and two flip pieces are connected by rotating shaft with the anchor respectively The provided at one connection of frame, the flip piece is rotated under the active force of the pull bar centered on the rotating shaft.

Preferably, described double-front wheel tricycle, wherein：The steering driving mechanism includes what is be connected with the main car frame Headstock stand tube, also slides in the headstock stand tube and is provided with telescoping tube, the upper end of the telescoping tube be fixed with tap handle and It passes through fastener and fixes or unclamp with the steering tube that can be rotated in the headstock stand tube, and the bottom of the steering tube is fixed There are fixture, described pivotally connected a connection piece of fixture.

Preferably, described double-front wheel tricycle, wherein：The connector is right including what is be plugged in together by a round pin The two halves formula structure of title, the two ends of the round pin are stretched in the fixture, and two opposite sides of the pull bar point Other pivot is in the wherein half of the two halves formula structure, and pull bar one end the and ground pivotally connected with the connector is high Degree one end the and ground level pivotally connected with the flip piece less than the pull bar.

Preferably, described double-front wheel tricycle, wherein：The flip piece includes two first pivots with difference in height Hole, the rotating shaft is located at two first pivot holes through two first pivot holes and the anchor link； The flip piece also includes the second pivot hole and the 3rd pivot hole for being glued described pull bar one end for installing front-wheel； Second pivot hole and the 3rd pivot hole are located at the same side for the axis that described two first pivot holes are formed.

Preferably, described double-front wheel tricycle, wherein：The main car frame connects into one with anchor link by torsion spring Body, one end of the torsion spring is fixed in the inner chamber of the anchor link, and the other end is fixed on the inside of the main car frame；Turn Xiang Shi, the torsion spring follows the main car frame to reverse；After steering, the torsion spring drives the main car frame turn-back.

Preferably, described double-front wheel tricycle, wherein：The torsion spring include at right angles or fillet the first fixing end with And the second fixing end of the groove that takes the shape of the letter U, the top area of first fixing end is embedded into the inner chamber of the anchor link In draw-in groove, and it is fixed in the draw-in groove by the first bolt；Second fixing end is by covering the top board of the U-lag Lower platen and the second bolt through the U-lag are fixed with the main car frame.

Preferably, described double-front wheel tricycle, wherein：The relatively described anchor link of the main car frame is reversed Angle is not more than 30 °.

Preferably, described double-front wheel tricycle, wherein：Main car frame contact with anchor link end also sets It is equipped with self-lubricating end face bearing.

The beneficial effects of the utility model are mainly reflected in：

The utility model deft design, simple structure, in steering state by making front-wheel and trailing wheel simultaneously to steering direction The setting for rolling is produced, so as to be conducive to the reduction of vehicle turning radius, increases flexibility, stationarity and the smoothness for turning to, The security for making vehicle turn at high speeds is greatly promoted, and improves the security of driving.

By set can the relative anchor link main car frame that reverses and reset, realize the inclination for turning to hour wheel, increase Self-lubricating end face bearing, ensure that the smoothness that main car frame and anchor link are reversed, and reduce abrasion, and extension part uses the longevity Life.

The U-lag structure of the utility model one end is easy to adjust fixed position according to the actual size of each part, fits Answering property is stronger, and the area for installing end face that U-lag structure is formed is bigger, easily facilitates and is consolidated by two block pressur plates It is fixed, it is ensured that fixed stability and reliability.

Foresteerage gear of the present utility model is simple and reliable, assembling facility, is adapted to produce in enormous quantities.

Brief description of the drawings

Fig. 1 is the structural representation of double-front wheel tricycle of the present utility model；

Fig. 2 is the structural representation that main car frame of the present utility model conceals shell；

Fig. 3 is the connection diagram of the utility model torsion spring and anchor link；

Fig. 4 is the utility model torsion spring and anchor link and the sectional view of main car frame attachment structure；

Fig. 5 is torsion spring structural representation of the present utility model；

Fig. 6 is the right view of the tricycle that the utility model has two front wheels；

Fig. 7 is the front view of the tricycle that the utility model has two front wheels；

Fig. 8 is the enlarged diagram at front-wheel of the present utility model, now conceals fixture；

Fig. 9 is the structural representation of the utility model flip piece；

Figure 10 is the steering state schematic diagram of double-front wheel tricycle of the present utility model.

Specific embodiment

The purpose of this utility model, advantage and feature, will carry out figure by the non-limitative illustration of preferred embodiment below Show and explain.These embodiments are only the prominent examples for applying technical solutions of the utility model, all to take equivalent or wait Effect conversion and the technical scheme that is formed, all fall within the utility model it is claimed within the scope of.

The utility model discloses a kind of double-front wheel tricycle, as shown in accompanying drawing 1, accompanying drawing 10, including vehicle frame and is located at Two front-wheels 92 and a trailing wheel 93 of both sides before and after the vehicle frame,

Under normality, two front-wheels 92 and a trailing wheel 93 are perpendicular to the ground；

Under steering state, the front-wheel and trailing wheel are in non-perpendicular state with ground.

Specifically, as shown in Figure 10, the vehicle frame include steering mechanism 110 and respectively with the steering mechanism 110 The main car frame 9 and anchor link 96 of connection, the front-wheel 92 is set in the steering mechanism 110 and drive front-wheel 92 turn to and Inclined during steering, the afterbody of the main car frame 9 sets the trailing wheel 93 and its anchor link 96 described in grafting of front end, the master Vehicle frame 9 can relatively described anchor link 96 be defined the twist motion of angle and drive the trailing wheel 93 to incline.

Detailed, as shown in accompanying drawing 1, accompanying drawing 6, accompanying drawing 7, accompanying drawing 10, the steering mechanism 110 includes and the main car frame 9 affixed steering driving mechanisms, the steering driving mechanism include be fixed on the front end of the main car frame 9 and with the main car frame 9 Substantially vertical headstock stand tube 13, certainly, when the tricycle is foldable style, the headstock stand tube 13 and the master Vehicle frame 9 can also be folded against, is also slided in the headstock stand tube 13 and is provided with telescoping tube 16, is provided with the telescoping tube 16 Headstock 1, the headstock 1 includes the speed regulating handle set in tap handle 11 and the tap handle 11 and two brake hand handles 12, at least one end of the tap handle 11 is provided with foldable rear-view mirror 120, the telescoping tube 16 by fastener 18 with can be The steering tube 14 rotated in the headstock stand tube 13 is fixed or unclamped, and the bottom of the steering tube 14 is fixed with fixture 15, The pivotally connected a connection piece 24 of the fixture 15, the connector 24 is to be mutually inserted symmetrical two halves formula knot together Structure, the two halves formula structure is plugged in together by a round pin 25, and the two ends of the round pin 25 stretch to the fixture 15 It is interior,.

As shown in accompanying drawing 6, accompanying drawing 8, the steering mechanism 110 is also all connected with and symmetrically including two with the connector 24 The pull bar 21 of setting, the opposite side of two pull bars 21 distinguishes pivots in the wherein half of the connector 24, two The other end of the pull bar 21 distinguishes pivotally connected one flip piece 22 for installing front-wheel 92 and drive front-wheel 92 to turn to, and And, as shown in Figure 6, one end the and ground level pivotally connected with the connector 24 of the pull bar 21 is less than the pull bar 21 One end the and ground level pivotally connected with the flip piece 22, both have height difference H.

Further, two flip pieces 22 are connected by rotating shaft 23 with the provided at one of the anchor link 96 respectively Connect, and the flip piece 22 is rotated centered on the rotating shaft 23 under the active force of the pull bar 21.

Detailed, with reference to shown in accompanying drawing 8 and accompanying drawing 9, the flip piece 22 includes two first pivots with difference in height Hole 221, the rotating shaft 23 is through two first pivot holes 221 and anchor link 96 and the anchor link 96 One end is located between two first pivot holes 221；The flip piece 22 also includes being located at two first pivot holes 221 Second pivot hole 222 of the axis X the same side for being formed and the 3rd pivot hole 223, second pivot hole 222 are used to install One front-wheel 92, one is used to install the front axle 17 of front-wheel 92 through second pivot hole 222 and penetrates the center of front-wheel 92, The rotation centered on the front axle 17 of the front-wheel 92；3rd pivot hole 223 is used to be hinged the one end of the pull bar 21, though In right the present embodiment, higher with position in first pivot hole 221 of the 3rd pivot hole 223 is in same height Degree, but in other embodiments, the 3rd pivot hole 223 can also be other feasible positions.

In addition, as shown in accompanying drawing 1, accompanying drawing 8, accompanying drawing 9, the flip piece 22 also include for fix front wheel brake 19 the One fixing hole 224 and the second fixing hole 225 for fixing front wheel guard 20, because the front wheel guard 20 can be with Be synchronized with the movement with the flip piece 22, i.e., can with front-wheel synchronous axial system, therefore, it is possible to cover the front-wheel constantly, also, by In multiple parts all with flip piece 22 to support, thus increased the degree of association between part so that overall structure is compacter And simplification.

Further, in the present embodiment, as shown in accompanying drawing 2, accompanying drawing 10, the main car frame 9 includes pedestal 911 and the base Connecting tube 912 that frame 911 is removably joined together and the shell being fixed on the pedestal 911 and connecting tube 912 913, the frame 911 and connecting tube 912 can also be the structures of one in other embodiments certainly.

As shown in Figure 2, the rear portion both sides of the pedestal 911 are provided with from the afterbody of the pedestal 911 and extend to cushion rod Pedal 914 at 94 and the rear wheel slot for installing wheel 93, the front end of the pedestal 911 are provided with for installing and fixing The mounting groove of connecting tube 912, the mounting groove includes circular trough area and square groove area, and the length in the square groove area is less than institute The diameter in circular trough area is stated, the shape of cross section of the connecting tube 912 matches with the mounting groove, by the structure of mounting groove Setting can effectively prevent connecting tube 912 from being rotated relative to pedestal 911, and certainly, the mounting groove can also be that other are feasible Shape, also, the two ends of at least described connecting tube 912 have manhole, the circular port interpolation of the front end of the connecting tube 912 It is connected to anchor link 96.

Specifically, as shown in Figure 3, the cylindrical Plug Division 962 of the anchor link 96 is inserted into the circular port In, it is additionally provided with self-lubricating end face axle between the open end and anchor link 96 of the circular port of the front end of the connecting tube 912 60 are held, because the circumferential contact surface of anchor link 96 and main car frame 9 is circular cambered surface, therefore the main car frame 9 can be relative The anchor link 96 is defined the twist motion of angle；During steering, the relatively described anchor link 96 of the main car frame 9 Rotate；After steering, the turn-back of the main car frame 9 resets.

Also, as shown in accompanying drawing 2, accompanying drawing 4, the main car frame 9 is linked into an integrated entity with anchor link 96 by torsion spring 10, One end of the torsion spring 10 is fixed in the inner chamber of the anchor link 96, and the other end of the torsion spring 10 is fixed on described The inside of main car frame 9；During steering, the torsion spring 10 follows the main car frame 9 to reverse；After steering, the torsion spring 10 is turned round at itself The turn-back of the main car frame 9 is resetted and driven in the presence of power；Also, the limitation of itself torsion due to torsion spring 10, it is described The angle that the relatively described anchor link 96 of main car frame 9 is reversed is not more than 30 °, so as to ensure the angle that main car frame 9 is rolled Will not be excessive, cause situation about overturning occur.

It is detailed, as shown in accompanying drawing 5, accompanying drawing 4, the torsion spring 10 include the first fixing end 101 of rectangular or fillet with And the second fixing end 102 of the groove that takes the shape of the letter U, the top area of first fixing end 101 is embedded into the anchor link 96 In draw-in groove 961 in inner chamber, and it is fixed in the draw-in groove 961 by the first bolt 20；Second fixing end 102 is by covering Top board 30, lower platen 40 and the second bolt 50 through the U-lag for covering the U-lag are fixed on the connecting tube In 912, and second fixing end 102 is located in the mounting groove.

Certainly in other embodiments, the structure at the two ends of the torsion spring 10 can also be designed according to actual needs, Its fixed form can also be other modes, will not be repeated here.

During using tricycle of the present utility model, when normal straight is travelled, as shown in accompanying drawing 1, accompanying drawing 6, due to 3 The rock-steady structure of wheel and steering mechanism 110 are in the absence of deflection, therefore three wheels are all in vertical state, vertical with ground holding State.

When needing to turn to, the tap handle 11 is rotated, the steering tube 14 can be driven to rotate simultaneously, due to described Steering tube 14 is rotated, positioned at the synchronous axial system of the fixture 15 of its bottom, because the fixture 15 is relative with connector 24 Fixed, axis of the connector 24 substantially also around the steering tube 14 is rotated, so as to promote positioned at the pull bar for turning to side 21 and pull be located at turn to opposition side pull bar 21 simultaneously to steering direction move, now, by thrust pull bar 21 to The flip piece 22 of its connection applies thrust, and the pull bar 21 of under tension can apply pulling force to connected flip piece 22, due to The pivot hole 223 of second pivot hole 222 and the 3rd is located at the same side of the axis X, so that two upsets are with the pivot Rotated centered on axle 23, and two front-wheels 92 can be turned under the drive of flip piece 22.

In the moment for turning to, there is the reason of the height difference H at certain frictional force and the two ends of pull bar 21 due to wheel and ground, The thrust and pulling force that the pull bar 21 applies to front-wheel 92 are respectively oblique direction and obliquely downward to therefore two front-wheels 92 exist During steering, the inclination towards steering direction can first occur, so that two front-wheels 92 are in non-perpendicular state with ground, turn vehicle It is curved more smooth.

Simultaneously as during Vehicular turn, human pilot can produce the power of inclination, this power is by the headstock stand tube 13 And cushion 95 is applied on the main car frame 9, because the main car frame 9 can freely be rotated relative to the anchor link 96, because In the case of stress, the main car frame 9 is rotated to the side for turning to for this, is rolled along with the torsion of main car frame 9, the torsion spring The windup-degree of the 10 reaction force limitation main car frames 9 for being distorted and passing through itself, and human pilot, trailing wheel 93 and headstock branch Frame pipe 13 can also follow main car frame 9 to roll, i.e., trailing wheel 93 is in non-perpendicular state with ground, as shown in Figure 10, so that Radius of turn can be reduced, realization is smoothly turned.

When completing to turn, recover straight line ride, each part of the steering mechanism 110 is with the carrying out of turning process Progressively reset, also, human pilot no longer produces the power of inclination, and now, the main car frame 9 is primarily subjected to the anti-of the torsion spring 10 Resetted to active force, therefore the turn-back under the reaction force of the torsion spring 10 of the main car frame 9.

Finally, as shown in Figure 1, the top of the main car frame 9 is generally perpendicularly provided near the position of the trailing wheel 93 Cushion rod 94, is provided with the cushion 95 on the cushion rod 94, the cushion 95 is the structure of saddle, certainly at it In his embodiment, the structure at the cushion 95 can also be to leave out the cushion structure of other electric motor cars of cushion rod 94, herein Repeat no more；The battery carrier 91 for installing battery is additionally provided with the main car frame 9, in conjunction with other driving members, can be with Tricycle of the present utility model is set to turn into electro-tricycle.

The utility model still has numerous embodiments, all use equivalents or equivalent transformation and all technologies for being formed Scheme, all falls within protection domain of the present utility model.

Claims (10)

1. double-front wheel tricycle, including vehicle frame and before and after vehicle frame both sides two front-wheels（92）And a trailing wheel （93）, it is characterised in that：

Under normality, two front-wheels（92）And a trailing wheel（93）It is perpendicular to the ground；

Under steering state, the front-wheel（92）And trailing wheel（93）Non-perpendicular state is in ground.

2. double-front wheel tricycle according to claim 1, it is characterised in that：The vehicle frame includes steering mechanism（110）With And respectively with the steering mechanism（110）The main car frame of connection（9）And anchor link（96）, the steering mechanism（110）On The front-wheel is set（92）And drive front-wheel（92）Turn to and inclined when turning to, the main car frame（9）Afterbody set it is described after Wheel（93）And its anchor link described in grafting of front end（96）, the main car frame（9）Can relatively described anchor link（96）Enter Row limits the twist motion of angle and drives the trailing wheel（93）Incline.

3. double-front wheel tricycle according to claim 2, it is characterised in that：The steering mechanism（110）Including with it is described Main car frame（9）Affixed steering driving mechanism, the pivotally connected two symmetrically arranged pull bars of steering driving mechanism（21）'s One end, two pull bars（21）The other end distinguish pivotally connected one for installing front-wheel（92）Flip piece（22）, two The flip piece（22）Pass through rotating shaft respectively（23）With the anchor link（96）Provided at one connection, the flip piece （22）In the pull bar（21）Active force under with the rotating shaft（23）Centered on rotate.

4. double-front wheel tricycle according to claim 3, it is characterised in that：The steering driving mechanism includes and the master Vehicle frame（9）The headstock stand tube of connection（13）, the headstock stand tube（13）Inside also slide and be provided with telescoping tube（16）, it is described flexible Pipe（16）Upper end be fixed with tap handle（1）And it passes through fastener（18）With can be in the headstock stand tube（13）Interior rotation Steering tube（14）Fixed or release, the steering tube（14）Bottom be fixed with fixture（15）, the fixture（15）Pivot Axle connects a connection piece（24）.

5. double-front wheel tricycle according to claim 4, it is characterised in that：The connector（24）Including by a round pin （25）The symmetrical two halves formula structure being plugged in together, the round pin（25）Two ends stretch to the fixture（15）It is interior, And two pull bars（21）Opposite side distinguish pivot in the wherein half of the two halves formula structure, and the pull bar（21） With the connector（24）Pivotally connected one end and ground level is less than the pull bar（21）With the flip piece（22）Pivot One end and ground level of connection.

6. double-front wheel tricycle according to claim 3, it is characterised in that：The flip piece（22）There is height including two Spend the first pivot hole of difference（221）, the rotating shaft（23）Through two first pivot holes（221）And the anchor link （96）Positioned at two first pivot holes（221）Between；The flip piece（22）Also include the second pivot for installing front-wheel Axis hole（222）And for being glued the pull bar（21）3rd pivot hole of one end（223）；Second pivot hole（222）With 3rd pivot hole（223）Positioned at described two first pivot holes（221）The axis for being formed（X）The same side.

7. double-front wheel tricycle according to claim 2, it is characterised in that：The main car frame（9）With anchor link （96）By torsion spring（10）Link into an integrated entity, the torsion spring（10）One end be fixed on the anchor link（96）Inner chamber In, the other end is fixed on the main car frame（9）Inside；During steering, the torsion spring（10）Follow the main car frame（9）Reverse； After steering, the torsion spring（10）Drive the main car frame（9）Turn-back.

8. double-front wheel tricycle according to claim 7, it is characterised in that：The torsion spring（10）Including rectangular or fillet The first fixing end（101）And the second fixing end of the groove that takes the shape of the letter U（102）, first fixing end（101）Top area it is embedding Enter to the anchor link（96）Inner chamber in draw-in groove（961）In, and by the first bolt（20）It is fixed on the draw-in groove （961）In；Second fixing end（102）By the top board for covering the U-lag（30）, lower platen（40）And through institute State the second bolt of U-lag（50）With the main car frame（9）It is fixed.

9. double-front wheel tricycle according to claim 7, it is characterised in that：The main car frame（9）Relatively described anchor connects Connect frame（96）The angle reversed is not more than 30 °.

10. double-front wheel tricycle according to claim 7, it is characterised in that：The main car frame（9）With anchor link （96）Contact end be additionally provided with self-lubricating end face bearing（60）.