CN206087143U - Folding back vent structure and rear wheel structure - Google Patents

Abstract

The utility model discloses a folding back vent structure and rear wheel structure for solve the folding problem of back vent, rear wheel. The back vent structure includes back vent, first pivot, second pivot and elastic component, the back vent is used for and the back hub connection, first pivot the second pivot is connected respectively back vent and automobile body, wherein the second pivot pass through the elastic component with back vent swing joint. The utility model is used for in the rear wheel structure of scooter, conveniently transport, carry.

Description

A kind of folding back fork structure and rear-wheel structure

Technical field

This utility model is related to scooter field, and in particular to a kind of folding back fork structure and rear-wheel structure.

Background technology

In recent years, more compact traditional electric bicycle volume, the Segway Human Transporter of profile more fashion, single wheel electricity are compared The new electric boosted instrument such as motor-car, balance car gradually by consumer, especially favored by young consumers.Nowadays, no matter It is square, the park in city, or on the house, highway in rural area, can sees that children are playing scooter, scooter often The requisite toy of current child is become.Traffic congestion, commuting time length, municipal pollution etc., are many cities of puzzle " persistent ailment " in city.Scooter is moderate due to speed, eager to learn steerable, there is brake gear (stepping on rear wheel brake), if simply at ordinary times Ride instead of walk, commonly entertain, be generally not easy to fall down.So it is adapted to the use of various age levels, especially in teenager People is even more allowed to be so fond that will not let out of one's hand, to possess a vehicle as honor.Scooter is being developed perfect balance system to teenager and is being even more to be had Good train on.

In the case where function is not affected, the volume and weight for reducing scooter is that those skilled in the art's one kind is being ground The problem studied carefully.

Utility model content

In view of this, in order to solve the problems, such as prior art in back vent, trailing wheel fold, this utility model provides one kind can be rolled over Folded back fork structure and rear-wheel structure, solve the problems, such as the folding of back vent and trailing wheel.

It is below content of the present utility model.

On the one hand, this utility model provides a kind of folding back fork structure, including back vent, the first pivot, the second pivot And elastic component, the back vent is used to be connected with rear axle, the first pivotally connected back vent and car body, the second pivot company The back vent and car body are connect, wherein the second pivot is flexibly connected by elastic component with the back vent.

Further, the elastic component is spring, and the spring one end connects second pivot, and other end connection is described Back vent.

As above-mentioned improvement of the present utility model, also include the fastener pivotally connected with described second, the fastener is used for Pull second pivot to change it with the back vent connection status.The fastener can pull the second pivot with convenient use person, With the function of completing to fold and fix back vent, the fastener is a kind of connector, for connecting the second pivot.

Further, the back vent includes forked standard and connector, and the forked standard is used to be connected with rear axle, the forked standard and institute State connector to be fastenedly connected, the connector is provided with and first pivot, the second pivotally connected connecting hole.

Further, the connector is provided with the containing cavity of the accommodating elastic component, and the elastic component is placed in the appearance In putting chamber, its one end is fixed on the connector, and the other end is pivotally connected with described second.

Further, the connector is provided with the containing cavity of the accommodating elastic component, and the elastic component is placed in the appearance In putting chamber, its one end connects first pivot, and the other end is pivotally connected with described second.

Further, connecting hole pivotally connected with first in the connector is circular hole, pivotally connected with described second Connecting hole be mounting hole.

Further, also including support member, the support member is connected with car body securing member, and is provided with connection first pivot The circular hole of axle, its edge is provided with least two open pores, for connecting the second pivot.

Further, also including amortisseur, the end is fixed on the back vent, and the other end is free end, for connecting Back wheels of vehicle or rear axle.

On the other hand, this utility model also provides a kind of folding rear-wheel structure, including wheel and aforesaid back vent knot Structure, the wheel is connected with the back fork structure.

Compared with prior art, the beneficial effects of the utility model are：A kind of folding back fork structure and rear rolling hitch Structure, the back fork structure can realize the steering and folding of wheel, apply it to scooter field so that the carrying of scooter is more Plus convenience.

Description of the drawings

In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be to make needed for embodiment Accompanying drawing is briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model or enforcement Example, therefore the restriction to scope is not construed as, for those of ordinary skill in the art, do not paying creative work On the premise of, can be obtaining other related accompanying drawings according to these accompanying drawings.

Fig. 1 shows a kind of structural representation of the open mode of the folding back fork structure of this utility model.

Fig. 2 shows the decomposition texture schematic diagram of the folding back fork structure of this utility model.

Fig. 3 shows the alternative structural representation of the open mode of the folding back fork structure of this utility model.

Fig. 4 shows a kind of structural representation of the folded state of the folding back fork structure of this utility model.

Fig. 5 shows the structural representation of the connector of the folding back fork structure of this utility model.

Fig. 6 shows the structural representation of the support member of the folding back fork structure of this utility model.

Main parts size symbol description：

301- back vents；3011- forked standards；3012- connectors；The pivots of 303- first；The pivots of 304- second；305- elastic components； 306- rear axles or the wheel with rear axle；309- containing cavities；310- fasteners；311- support members；3111- circular holes；3112- open pores； 312- amortisseurs；313- car bodies.

Specific embodiment

For the ease of understanding this utility model, below with reference to relevant drawings to folding back fork structure and rear-wheel structure It is described more fully.Accompanying drawing gives the embodiment of folding back fork structure and rear-wheel structure, but, it is folding after Fork structure and rear-wheel structure can be realized in different forms, however it is not limited to embodiment described herein.On the contrary, providing The purpose of these embodiments is to make the disclosure to folding back fork structure and rear-wheel structure more thorough comprehensive.

In description of the present utility model, it is to be understood that term " on ", D score, "front", "rear", "left", "right", The orientation or position relationship of the instruction such as " vertical ", " level ", " top ", " bottom ", " interior ", " outward " be based on orientation shown in the drawings or Position relationship, is for only for ease of description this utility model and simplifies description, rather than indicates or imply device or the unit of indication Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or feature that the embodiment or example are described In being contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term It is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can be with office What combine in an appropriate manner in one or more embodiments or example.

In description of the present utility model, unless otherwise prescribed and limit, it should be noted that term " installation ", " phase Even ", " connection ", " connection ", " connection " should be interpreted broadly, for example, it may be mechanical attachment or electrical connection, or two The connection of element internal, can be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill of this area For personnel, the concrete meaning of above-mentioned term can be as the case may be understood.

Fig. 1 shows a kind of structural representation of the open mode of the folding back fork structure of this utility model, and Fig. 2 shows The decomposition texture schematic diagram of the folding back fork structure of this utility model is gone out, after Fig. 3 shows that this utility model is folding The alternative structural representation of the open mode of fork structure, Fig. 4 shows the folding of the folding back fork structure of this utility model A kind of structural representation of overlapping state, Fig. 5 shows that the structure of the connector of the folding back fork structure of this utility model is shown It is intended to, Fig. 6 shows the structural representation of the support member of the folding back fork structure of this utility model.As shown in figs. 1 to 6, originally The back fork structure of utility model includes back vent 301, the first pivot 303, the second pivot 304 and elastic component 305.The back vent 301 For being connected with rear axle, first pivot 303, second pivot 304 connect respectively the back vent 301 and car body 313, its In the second pivot 304 be flexibly connected with the back vent 301 by elastic component 305.Wherein, back vent 301 is used to connect rear wheel, its It is connected with rear wheel by rear axle 306, it should be noted that back vent 301 can also be directly connected to the rear wheel 306 with rear axle, Therefore, the connection rear axle of back vent 301 or the rear wheel with rear axle 306 should be regarded as the technical characteristic being equal to.

It should be noted that the portion that the back vent 301 in this utility model is the wheel 306 with rear axle or with rear axle to be connected Part, it is structure commonly known in the art, and it includes left arm, right arm, for supporting wheel.The back vent 301 passes through first Pivot 303, the second pivot 304 are set up with car body 313 and are connected.The back vent 301 is provided with and connects with the first pivot 303, the second pivot 304 The attachment structure for connecing, in this utility model, first pivot 303 can be gap cooperation, interference with the connection of the back vent 301 Coordinate, or be threadedly coupled, the first pivot 303 as axial workpiece, can for fixing axle can also be rotary shaft, i.e., its Can rotate, it is also possible to maintain static with back vent.

It should be noted that the first pivot 303 of the present utility model is the pivot for connecting back vent 301 and car body 313, this One pivot 303 can pass through back vent 301, its two ends to be fixed on car body 313, and so, back vent 301 can be around the first pivot 303 rotate, so as to define being hinged for back vent 301 and car body 313.First pivot 303 can be optical axis, and in addition, this One pivot 303 can also be the axial end portion being fixed on back vent 301, and first pivot 303 and back vent 301 can be integrally formed, The shaft end of first pivot 303 is hinged with car body 313, can rotate around car body 313.In terms of selection, first pivot 303 can With using metal material etc..

It should be noted that the second pivot 304 of the present utility model is the pivot for connecting back vent 301 and car body 313, first Pivot 303 and car body 313 establish pivot joint, but, back vent 301 can rotate around the first pivot 303, now back vent 301 Degree of freedom is 1, in order to ensure that back vent 301 is maintained static, it is necessary to add a constraint on the back vent 301 again so as to can not rotate, After the connection for adding second pivot 304, the degree of freedom of the back vent 301 is 0, and its relative car body 313 is maintained static.But should Second pivot 304 is flexibly connected with back vent 301, and this flexible connection is realized by elastic component 305, i.e. the second pivot Axle 304 can be in the presence of elastic component 305, thus it is possible to vary position, once second pivot 304 is fixed on certain of car body 313 One specific position, second pivot 304 can constrain back vent 301 so as to can not rotate, it is achieved thereby that itself and car body 313 fixation.When needing to fold the back vent 301, change the deformation of elastic component 305, so as to change the position of the second pivot 304 Put, when some that the here of the second pivot 304 is fixed on car body 313 is different from aforesaid particular location, second pivot 304 are fixed on back vent 301 on car body based on same reason.

Summary can be clearly seen that, after this with regard to the description of the first pivot 303 and the structure of the second pivot 304 Fork 301 is to play effect of contraction simultaneously to fix back vent 301 by the first pivot 303 and the second pivot 304, wherein, second Pivot 304 is flexibly connected with back vent 301, and it can change position to cause second pivot in the presence of elastic component 305 Axle 304 is fixed or departed from car body 313, so as to realize the fixation and folding of back vent 301.

Elastic component 305 in this utility model is the connector for connecting the pivot 304 of back vent 301 and second, and it can pass through The deformation of itself is fixed on the second pivot 304 on car body, and the second pivot 304 is the elastic component 305 through back vent 301 It is connected with the second pivot 304.Elastic component 305 herein, is the connector with elastic performance, and it is used to be flexibly connected the second pivot Axle 304.In a kind of specific mode, the elastic component 305 is contained in the containing cavity 309 of back vent 301, for the second pivot 304 set up elastic connection, and the elastic component 305 can be spring, can be specifically extension springs, and its one end holds the second pivot 304, The other end is fixed on back vent 301.Extension spring is the abbreviation of extension spring (being also tension spring), and it is subject to the spiral shell of axial tension Rotation spring, extension spring typically all uses circular section material manufacture.It is general between the circle and circle of extension spring when load is not subject to All it is and tight very close to each other.Extension spring material mainly includes stainless steel spring line, carbon steel wire, oil hardening tempering alloy spring Line, high/low temperature alloy spring line etc..

It is the connector for conveniently pulling dynamic second pivot 304 as shown in Fig. 2 fastener of the present utility model 310, the fastener 310 pass through second pivot 304, can rotate around second pivot 304.Connect for the pivot 304 of fastener 310 and second, It is the equal of the connector of mobile second pivot 304, during its fixation, stretching action of second pivot 304 in elastic component 305 Under be also at stationary state.In a kind of specific embodiment, can be needed by pulling fastener 310 to move the second pivot 304 To illustrate that, it is also possible to by the fastener 310 and the relative position for fixing second pivot 304 and car body 313, so as to rise To the effect of fixed back vent 301.The fastener 310 is used to pull the second pivot 304, therefore, it is not limited to the shape in accompanying drawing, appoints What connector that can be connected with the second pivot 304 can realize identical function and reach identical effect, the fastener 310 Can also be draw ring etc..

As shown in Fig. 2, Fig. 5, back fork structure of the present utility model includes forked standard 3011 and connector 3012, the forked standard 3011 be used for be connected with rear axle, the forked standard 3011 is fastenedly connected with the connector 3012, the connector 3012 be provided with First pivot 303, the connecting hole of the connection of the second pivot 304.The connector 3012 is connected with forked standard 3011, the first pivot 303rd, the second pivot 304 is through the connecting hole on the connector, is the convenience of narration, the connecting hole being connected with the first pivot 303 Referred to as the first connecting hole, the connecting hole being connected with the second pivot 304 is referred to as the second connecting hole, wherein the first connecting hole is circular logical Hole, the second connecting hole is waist through hole, and the second pivot 304 is applied in the second connecting hole can realize movement, changes position, bullet Property part 305 can change deformation along the convenient of the mounting hole, so as to realize the flexible connection to the second pivot 304.

As shown in Fig. 2 elastic component 305 is contained in connector, its one end is fixed on the connector 3012, the other end It is connected with second pivot 304.In a particular embodiment, when elastic component 305 is selected using extension spring, in connector One is arranged on 3012 can connect the projection of extension spring, and extension spring one end is connected in the projection.In addition, the extension spring can also be by fastening Part, such as screw, its one end is fixed in connector 3012.In this utility model, elastic component 305 is contained in connector 3012 In, volume size, the number of the elastic component 305 can all have influence on the construction of containing cavity 309 in connector 3012, the containing cavity 309 are used to house the elastic component 305.It should be noted that in the case of proof strength, connector 3012 should try one's best to arrange and close Suitable containing cavity 309 is easy to assembling, replacing of elastic component 305 etc. housing elastic component 305.

As shown in Fig. 2 the connector 3012 is provided with the containing cavity 309 of the accommodating elastic component 305, the elastic component 305 are placed in the containing cavity 309, and its one end connects first pivot 303, and the other end connects with second pivot 304 Connect.

As shown in Fig. 2, Fig. 6, back fork structure of the present utility model also includes support member 311, the support member 311 and car body 313 securing members connect, and are provided with the circular hole 3111 for connecting first pivot 303, and its edge is provided with least two open pores 3112, for connecting the second pivot 304.In a kind of specific embodiment, the support member 311 could be arranged to be mutually perpendicular to Joint face, its simultaneously with car body by securing member connect weld or rivet or it is bonding, another side is provided with connecting hole, wherein setting There is the circular hole 3111 for connecting first pivot 303, its edge is provided with least two open pores 3112, for connecting the second pivot 304.Easily it is envisioned that, the support member 311 can be made using steel.

As shown in Fig. 2 back fork structure of the present utility model also includes amortisseur 312, the end is fixed on the back vent 301 On, the other end is free end, for connecting back wheels of vehicle or rear axle.Amortisseur can be described as shock absorber again, be mainly used to suppress spring Concussion and the impact from road surface when rebounding after shock-absorbing.When through uneven road surface, although shock-absorbing spring can filter road surface Vibrations, but spring itself also has reciprocating motion, and amortisseur for suppressing this spring to jump.It is new in this practicality In type, amortisseur includes piston rod and adjusts the spring on the piston rod, and one end of piston rod connects front axle or with front The wheel of axle, the other end is fixed on back vent, can thus realize cushioning effect.It should be noted that of the present utility model Amortisseur is not limited to such structure, can also include two-man act amortisseur, such as Chinese patent application Publication No. CN103307192A discloses a kind of two-man act amortisseur, including shell, and inside the shell is provided with piston rod, and one end of piston rod is provided with Upper installation set, the other end is provided with lower installation set, and on the shell inner piston rod damper assembly and cushion are provided with；It is described One end of shell is provided with actuator, and spring positioning seat is provided with the outer surface of the shell, is provided with spring positioning seat Outer spring, is provided with inner spring between outer spring and outer surface of outer cover.In this utility model, any type of amortisseur, its Essentially identical function is realized, all should be considered as in the range of restriction of the present utility model.

This utility model is also disclosed a kind of rear-wheel structure of scooter, and the rear-wheel structure of the scooter includes aforesaid back vent Structure and wheel, the wheel is connected with the back fork structure.The trailing wheel mechanism is used in the connection of the trailing wheel of scooter, uses In the folding problem for solving trailing wheel, it should be noted that the wheel is specifically as follows the wheel with wheel hub motor or common car Wheel, its tire can be pneumatic tire.Wherein, wheel hub motor is well known in the prior art technology, and what it was utilized is wheel hub electricity Machine technology, wheel hub motor technology is also referred to as wheel inner electric machine technology, and its maximum feature is exactly by power set, transmission dress Put and brake unit is all integrated in wheel hub, be able to the mechanical part of electric vehicle is greatly simplified.In-wheel motor driving System is largely divided into two kinds of structural shapes according to the rotor type of motor：Inner-rotor-type and external-rotor-type.Wherein external-rotor-type is adopted Use low speed external rotor electric machine, the maximum speed of motor in 1000-1500r/min, without deceleration device, rotating speed and the motor phase of wheel Together；And inner-rotor-type then adopts high speed inner rotor motor, the decelerator of fixed drive ratio is equipped with, is that the higher power of acquisition is close Degree, the rotating speed of motor may be up to 10000r/min.With the appearance of more compact planetary reducer, inner-rotor-type wheel hub Motor is more more competitive than low speed external-rotor-type in terms of power density.For conventional truck, clutch, variator, biography Moving axis, differential mechanism or even transfer gear be all it is requisite, and these parts not only weight is light, make the structure of vehicle more multiple It is miscellaneous, while there is also needing the problem of periodic maintenance and fault rate.But wheel hub motor just solves well this problem.Remove Outside structure is more simple, more preferable space availability ratio can be obtained using the vehicle of In-wheel motor driving, while being driven effect Rate also will be higher by much.

The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to In this, any those familiar with the art can readily occur in change in the technical scope that this utility model is disclosed Or replace, all should cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be described with power The protection domain that profit is required is defined.

Claims (10)

1. a kind of back fork structure, it is characterised in that：Including back vent, the first pivot, the second pivot and elastic component, the back vent is used for It is connected with rear axle, wherein, the first pivotally connected back vent and car body, the second pivotally connected back vent and car Body, the second pivot is flexibly connected by elastic component with the back vent.

2. back fork structure as claimed in claim 1, it is characterised in that：The elastic component is spring, the spring one end connection Second pivot, the other end connects the back vent.

3. back fork structure as claimed in claim 1, it is characterised in that：Also include the fastener pivotally connected with described second, institute Fastener is stated for pulling second pivot to change it with the back vent connection status.

4. back fork structure as claimed in claim 1, it is characterised in that：The back vent includes forked standard and connector, the forked standard For being connected with rear axle, the forked standard is fastenedly connected with the connector, the connector be provided with first pivot, second Pivotally connected connecting hole.

5. back fork structure as claimed in claim 4, it is characterised in that：The connector is provided with the accommodating of the accommodating elastic component Chamber, the elastic component is placed in the containing cavity, and its one end is fixed on the connector, the other end and second pivot Connection.

6. back fork structure as claimed in claim 4, it is characterised in that：The connector is provided with the accommodating of the accommodating elastic component Chamber, the elastic component is placed in the containing cavity, and its one end connects first pivot, and the other end connects with second pivot Connect.

7. back fork structure as claimed in claim 4, it is characterised in that：The connecting hole pivotally connected with first in the connector For circular hole, the connecting hole pivotally connected with described second is mounting hole.

8. back fork structure as claimed in claim 1, it is characterised in that：Also include support member, the support member is fastened with car body Part connects, and is provided with the circular hole for connecting first pivot, and its edge is provided with least two open pores, for connecting the second pivot Axle.

9. back fork structure as claimed in claim 1, it is characterised in that：Also include amortisseur, described amortisseur one end is fixed on On the back vent, the other end is free end, for connecting back wheels of vehicle or rear axle.

10. a kind of rear-wheel structure, it is characterised in that：It is described including the arbitrary described back fork structure of wheel and claim 1～9 Wheel is connected with the back fork structure.