CN205706961U - A kind of child's bicycle collateral support wheel attachment structure - Google Patents

Abstract

This utility model relates to a kind of child's bicycle collateral support wheel attachment structure, frame up any one side of surrounding side of this card has opening, one locating dowel is set at card frames up front console, installation portion in collateral support wheel frames up interior promotion or can insert in card frames up from opening part when framing up outer pulling to card to card in locating dowel, and spacing for the installation portion card that is inlaid in be framed up interior after resetting by described locating dowel.In this utility model, operator use hands both can complete the installation or removal of collateral support wheel, without other instruments, it is particularly suited for carrying out out of doors the dismounting of collateral support wheel, it is the most convenient to operate, and after the spacing setting-in of installation portion, stress point is many, strength is uniformly distributed, it is possible to effectively ensure the firm of collateral support wheel when child rides.

Description

A kind of child's bicycle collateral support wheel attachment structure

Technical field

This utility model belongs to child's bicycle rear portion side and supports wheel mounting structure improvement technologyField, especially a kind of child is voluntarily Car collateral support wheel attachment structure.

Background technology

Child's bicycle is that in carriage for children is main kind of, and the head of a family removes in conjunction with the age of child and stature height when choosing Need beyond the aspects such as size, brake lever size, braking strength select meticulously, it is also noted that child's bicycle must Being equipped with two collateral support wheels, this collateral support wheel is positioned at the both sides, rear portion of child's bicycle, jointly presses on the ground with trailing wheel, then With the shape that front-wheel forms a triangle, make the child of cycling keep balance, improve the safety that child rides.Each side The rotary shaft supporting wheel connects the tie-beam of an inclination, and the upper end of this tie-beam arranges installation portion, and this installation portion is generally fixed to car Frame rear end, bottom of frame, vehicle frame front end, vehicle frame rear end can be the rotary shaft of trailing wheel, trailing wheel installing plate surface or rear chain stay Outer surface etc., bottom of frame can be axis sleeve pipe bottom surface etc., and vehicle frame front end can be the rotary shaft of front-wheel, front-wheel peace Dress plate surface or front fork outer surface etc..But finding when actually used, no matter existing installation portion is fixed on where, all Needing to be fixed by nut, this mounting means is relatively complicated, and disassembling when later maintenance is the most pretty troublesome, is badly in need of one peace The mounting means that safety is ridden simply, is conveniently dismantled and be can guarantee that to dress.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that rational in infrastructure, be easily installed, be readily disassembled and be subject to A kind of child's bicycle collateral support wheel attachment structure that power is uniform, safe.

This utility model adopts the technical scheme that:

A kind of child's bicycle collateral support wheel attachment structure, it is characterised in that: including that card frames up, this card frames up the appointing of surrounding side A side of anticipating has opening, arranges a locating dowel at card frames up front console, the installation portion in collateral support wheel locating dowel to Card frames up interior promotion or can insert in card frames up from opening part when card frames up outer pulling, described locating dowel reset after by installation portion limit Position is inlaid in card and frames up interior；

The rear end of two sides that described card frames up is arranged on vehicle frame front end, bottom of frame or vehicle frame rear end, or described card frames up The rear end panel that has of rear end be arranged on vehicle frame front end, bottom of frame or vehicle frame rear end.

And, after the side that the front console any two that described card frames up is symmetrical is arranged on vehicle frame front end, bottom of frame or vehicle frame End, the made opening of any one side in the side of two other symmetry of two symmetrical side sides is inserted for installation portion Enter card frame up interior space or certainly block frame up interior space take out.

And, the side rear end that the front console any two that described card frames up is symmetrical arranges described rear end panel, this rear end face Plate is arranged on vehicle frame front end, bottom of frame or vehicle frame rear end, in the side of two other symmetry of two symmetrical side sides The made opening of any one side inserts card for installation portion and frames up interior space or certainly block the space taking-up framing up interior.

And, described locating dowel is certainly blocked the front console framed up and is penetrated and pass card and frame up interior space, the card dress that its end is arranged Portion penetrates in the pilot hole that vehicle frame front end, bottom of frame or vehicle frame rear end have, locating dowel be positioned at card frame up outside end sleeve Filling one can make locating dowel reset and make described card dress portion return to card frame up the spring in interior space to the card outside that frames up, and described locating dowel is used In the mounting hole made on the end that opening inserts through described installation portion, described card dress portion is used for being stuck in described mounting hole side In the card dress hole of connection and make the spacing card that is inlaid in of installation portion frame up interior.

And, described locating dowel is certainly blocked the front console framed up and is penetrated and pass card and frame up interior space, the card dress that its end is arranged Portion penetrates in the pilot hole that rear end panel has, locating dowel be positioned at card frame up outside end suit one can make locating dowel to card dress Reset outside frame and make described card dress portion return to card and frame up the spring in interior space, described locating dowel for through described installation portion from opening The mounting hole made on the end that mouth inserts, described card dress portion is in the card dress hole be stuck in the connection of described mounting hole side and makes peace The spacing card that is inlaid in dress portion frames up interior.

And, described mounting post be positioned at card frame up outside outer rim be sleeved on card frame up outer surface setting sleeve pipe, locating dowel The end stretching out sleeve pipe connects an extruding cap, and this extruding cap is contained in the outer rim of sleeve pipe near the end sleeve that card frames up, and locating dowel is positioned at The outer rim that card frames up between outer surface and extruding cap inner surface is set with described spring, and the side of this spring is positioned at sleeve pipe, this bullet The opposite side of spring is positioned at extruding cap.

And, installing the card dress portion of locating dowel end in the front console that described card frames up, this card dress portion stretches into card and frames up interior sky Between the pilot hole that end penetrates vehicle frame front end, bottom of frame or vehicle frame rear end are arranged in, card dress portion be positioned at card frame up outside outside Make for blocking the fin on front console surface, bulge loop or the projection that card frames up on edge, the end face outside in card dress portion is installed On the front console that card outside locating dowel, this locating dowel and card dress portion frames up, sleeve is set, the locating dowel outer rim in this sleeve pipe It is set with a spring；

Described card dress portion is positioned when post pulls outside card frames up and makes installation portion insert in the space that card frames up from opening, described card The card that dress portion makes through installation portion end under the action of the spring is reset in pilot hole after filling hole.

And, installing the card dress portion of locating dowel end in the front console that described card frames up, this card dress portion stretches into card and frames up interior sky Between end penetrate in the pilot hole that rear end panel is arranged, card dress portion be positioned at card frame up outside outer rim on make and fill for blocking card The fin on front console surface, bulge loop or the projection of frame, installs locating dowel, this locating dowel and card in the end face outside in card dress portion Arranging sleeve on the front console that card outside dress portion frames up, the locating dowel outer rim in this sleeve pipe is set with a spring；

Described card dress portion is positioned when post pulls outside card frames up and makes installation portion insert in the space that card frames up from opening, described card The card that dress portion makes through installation portion end under the action of the spring is reset in pilot hole after filling hole.

And, slide and be inlaid in the front console that card frames up in the front end of described locating dowel, the end of locating dowel penetrate vehicle frame front end, In the pilot hole that bottom of frame or vehicle frame rear end are arranged, the locating dowel outer rim being positioned at the space that card frames up makes card dress portion, guides Hole internal messing installs a limit base, and the locating dowel outer rim between relative two end faces of this limit base and card dress portion is set with a spring；

Described card dress portion is positioned post when promoting to pilot hole direction, made on the end that locating dowel self installation portion is inserted by opening Mounting hole penetrates and enters in the card connected with the installing hole dress hole that this installing hole side is made, and described card dress portion is under the action of the spring The spacing card that is inlaid in of installation portion is made to frame up interior after being reset to described card dress hole.

And, sliding and be inlaid in the front console that card frames up in the front end of described locating dowel, the end of locating dowel penetrates rear end panel In the pilot hole arranged, the locating dowel outer rim being positioned at the space that card frames up makes card dress portion, and it is spacing that pilot hole internal messing installs one It is set with a spring in locating dowel outer rim between two end faces that seat, this limit base and card dress portion are relative；

Described card dress portion is positioned post when promoting to pilot hole direction, made on the end that locating dowel self installation portion is inserted by opening Mounting hole penetrates and enters in the card connected with the installing hole dress hole that this installing hole side is made, and described card dress portion is under the action of the spring The spacing card that is inlaid in of installation portion is made to frame up interior after being reset to described card dress hole.

Advantage of the present utility model and good effect be:

In this utility model, the side rear end that card frames up is connected with the surface of vehicle frame front end, bottom of frame or vehicle frame rear end, also may be used Be the side rear end that frames up of card and and two side rear end between the rear end panel of setting-in is common and at the bottom of vehicle frame front end, vehicle frame The surface of portion or vehicle frame rear end connects, it is also possible to the rear end panel filled on the side rear end that described card frames up and vehicle frame front end, car The surface of bottom frame or vehicle frame rear end connects, the installation portion of interior setting-in collateral support wheel the filled tie-beam upper end setting that frames up at card, peace Dress portion can insert from the opening part blocking any one side that frames up and the spacing card that is inlaid in frames up interior.The mounting structure of locating dowel has three Kind of mode: one be locating dowel when card frames up interior promotion, the mounting hole that the outer rim self installation portion that locating dowel diameter is less makes is worn Crossing and enter in card dress hole, then unclamp locating dowel, under spring elastic force outside card frames up drives, locating dowel drives card dress Portion resets outside pilot hole, and spacing for the installation portion card that is inlaid in is framed up interior after returning to card dress hole by card dress portion；Another kind is locating dowel When card frames up outer pulling, card dress portion completely or partially enters in sleeve pipe, and installation portion inserts after card frames up and unclamps locating dowel, at bullet Under spring elastic force inside card frames up drives, card dress portion resets behind the card dress hole of installation portion in pilot hole, card dress portion end After entering pilot hole, spacing for the installation portion card that is inlaid in is framed up interior；The third is locating dowel when promoting to pilot hole direction, drives card Dress portion moves to pilot hole direction, and card dress portion is completely into pilot hole, it is also possible to is partially into pilot hole, or does not enter guiding Hole, owing to making locating dowel enter in the space that card frames up when card dress portion moves, installation portion inserts from opening, makes locating dowel from installing Hole enters card dress hole, unclamps locating dowel, and under spring elastic force outside card frames up drives, card dress portion penetrates the card dress of installation portion Behind hole, spacing for the installation portion card that is inlaid in is framed up interior.From said process, operator use hands both can complete collateral support wheel Installation or removal, it is not necessary to other instruments, be particularly suited for carrying out out of doors the dismounting of collateral support wheel, it is the most convenient to operate, and And after the spacing setting-in of installation portion, stress point is many, and strength is uniformly distributed, it is possible to effectively ensure when child rides collateral support wheel steady Gu.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model (installation portion inserts on the downside of card frames up)；

Fig. 2 is the structural representation of the installation portion of Fig. 1；

Fig. 3 be pull down card frame up and installation portion after structural representation；

Fig. 4 is the top view (pull down installation portion and card frames up and do not has rear end panel) that the card of Fig. 1 frames up；

Fig. 5 is that the A-A of Fig. 1 is to sectional view (pull down installation portion and promote locating dowel to pilot hole)；

Fig. 6 is that the A-A of Fig. 1 is to sectional view (insert installation portion and make locating dowel be positioned at card dress hole after passing mounting hole)；

Fig. 7 is that the A-A of Fig. 1 is to sectional view (locating dowel is outer outside pilot hole to be resetted)；

Fig. 8 is that card frames up the structural representation (installation portion inserts from the card right side that frames up) of another kind of mounting means；

Fig. 9 is the structural representation of the installation portion of Fig. 8；

Figure 10 is the B direction view (dextrorotation turn 90 degrees, and arranges rear end panel between two side rear ends) of Fig. 8；

Figure 11 is the structural representation (arranging rear end panel on the rear end face of two sides) that mounting post pulls out；

Figure 12 is the sectional view (mounting post starts to pull out) of Figure 11；

Figure 13 is that the mounting post of Figure 12 is drawn to outermost structural representation (installation portion inserts card and frames up interior)；

Figure 14 is the process that the card dress portion of Figure 13 resets in pilot hole；

Figure 15 is locating dowel and the sectional view of the third fit structure of card dress portion；

Figure 16 is locating dowel structural representation when pilot hole promotes in Figure 15.

Detailed description of the invention

Below in conjunction with embodiment, further illustrating this utility model, following embodiment is illustrative, is not determinate, Protection domain of the present utility model can not be limited with following embodiment.

A kind of child's bicycle collateral support wheel attachment structure, as shown in Fig. 1～7, tie-beam 6 is installed in the rotating shaft of collateral support wheel, The upper end of tie-beam arranges installation portion 5, and innovation of the present utility model is: include that card frames up 3, and this card frames up the appointing of surrounding side A side of anticipating has opening, arranges a locating dowel 14 at card frames up front console, and described installation portion frames up to card in locating dowel Interior promotion or can insert in card frames up from opening part, by spacing for installation portion setting-in after the reset of described locating dowel when card frames up outer pulling In card frames up, the side rear end that described card frames up directly is connected with vehicle frame front end, bottom of frame or vehicle frame rear end, and installation portion is even Collateral support wheel is made to be pressed in and block on the ground of the homonymy that frames up after connecting.

In the present embodiment, card frames up as shown in Figure 4, and left side and two of right side symmetrical sides 10 that its front console is horizontal set Put in vehicle frame front end, bottom of frame or the surface of vehicle frame rear end, side made opening in lower end inserts in card frames up for installation portion Space 13 or certainly block frame up interior space take out.

More particularly: described locating dowel is certainly blocked the made perforate of front console 21 framed up and penetrated and pass card and frame up interior space, The card dress portion 11 that its end is arranged penetrates in the pilot hole 9 that vehicle frame front end, bottom of frame or vehicle frame rear end have, in locating dowel position Locating dowel can be made to reset and make described card dress portion return to card frame up interior space to the card outside that frames up in the frame up end suit one in outside of card Spring 15, described locating dowel for through the mounting hole 7 made on described installation portion, described card dress portion be used for being stuck in described in wear The card dress hole 8 of dress hole side connection is interior and makes the spacing card that is inlaid in of installation portion frame up interior.

Described mounting post be positioned at card frame up outside outer rim be sleeved on card frame up outer surface setting sleeve pipe 12, locating dowel is stretched out The end 19 of sleeve pipe connects an extruding cap 4, and this extruding cap is sleeved on the outer rim of sleeve pipe, locating dowel near the end 16 that card frames up The outer rim framed up between outer surface and extruding cap inner surface at card is set with described spring.Specifically as shown in Fig. 5,6,7, bullet Spring is within blocking space 20 between sleeve pipe and locating dowel, the side framed up, and spring is positioned at extruding cap near the side of extruding cap Inside is made in cavity 17.

Vehicle frame rear end can be trailing wheel installing plate surface 1 or rear chain stay outer surface etc., and bottom of frame can be axis sleeve pipe Bottom surface etc., vehicle frame front end can be front-wheel installing plate surface or front fork outer surface etc..Preferably trailing wheel installing plate leans on A side surface of chain stay after near, its rotary shaft with trailing wheel is fixed, it is possible to provide higher intensity with guarantee installation portion and card Stable connection between framing up, installs the rotary shaft of trailing wheel in the mounting groove 2 of the opposite side setting of trailing wheel installing plate.

Mounting post is positioned at the frame up end in outside of card and can be fixed by screw thread 18 inside extruding cap, it is also possible to be that interference plug-in mounting is solid Fixed, it is also possible to make locating dowel pass extruding cap and the two be fixed by nut or screw, the diameter after the spring of locating dowel suit It is slightly less than the internal diameter of sleeve pipe, and extrudes the inner edge diameter outer rim slightly larger than sleeve pipe of cap.

It is also possible that certain upper end side makes opening, and now installation portion can make the structure such as inverted U or downward bending-type, As long as this structure can be downwardly into card and frame up the made opening of upper end side, now mounting hole is arranged on the lower end of installation down In portion, card dress hole is positioned at the top of mounting hole and communicates therewith.

Preferred scheme is: as shown in drawings, makes opening in the card lower end that frames up, and upper end closed or make opening equally, Installation portion now is a vertical structure upwards, and i.e. it inserts from lower ending opening, and now mounting hole is arranged on the upper of installation upward On end, card dress hole is positioned at the lower section of mounting hole and communicates therewith.

Inwardly the process of promotion locating dowel is:

The most under normal circumstances, as shown in Figure 4, when spring 15 is uncompressed, card dress portion 11 is predominantly located in space 13, end End fraction is positioned at pilot hole 9；

2. as it is shown in figure 5, rear wheel installing plate 1 direction promotes extruding cap 4, making spring-compressed, now card dress portion is whole or big portion Dividing and be positioned at pilot hole, locating dowel 14 is positioned at space；

The most as shown in Figure 6, installation portion 5 is inserted, make locating dowel pass mounting hole 7 and enter in card dress hole 8；

4., as it is shown in fig. 7, unclamp extruding cap, spring reset also drives locating dowel to frame up movement outside (pilot hole outer) to card, makes Card dress portion returns at space and embeds in card dress hole, completes the installation of installation portion, and now installation portion makes collateral support wheel by tie-beam Be pressed in card frame up homonymy ground on.

Than the above described structure, it is also possible to using structure as shown in Figure 8,9, 10, now, card frames up clockwise or the inverse time Pin reverses certain angle, and this angle can be 90 degree, or the angle more than or equal to 45 degree and less than or equal to 90 degree.Such as institute State card to frame up to turn round clockwise and turn 90 degrees, being fixed on rear chain stay outer surface by welding manner of upper and lower end parts, the left side that card frames up Opening is made in side or opening is made on right side.Fig. 8 be installation portion be a bending shape to the left, mounting hole is positioned on the left of installation portion End on, card dress hole be positioned at the right of mounting hole and communicate therewith, installation portion bending to the right is also possible in turn, peace The structure of dress post is identical with the structure of Fig. 1～7.

In the structure of Fig. 1～7, can arrange the rear end panel 22 as shown in Figure 10 or Figure 11 in side rear end, rear end panel is solid Being scheduled on vehicle frame front end, bottom of frame or vehicle frame rear end, now pilot hole is positioned on the panel of rear end.

In two kinds of mounting structures that above-mentioned card frames up, the card of Fig. 1～7 frame up two sides directly and vehicle frame front end, bottom of frame or Vehicle frame rear end, it is also possible to use following structure: a rear end panel 22 can be set between two side rear ends (such as Fig. 8～10 Shown in) or the rear end face of two sides on a rear end panel (as shown in Figure 11～14) can be set.Rear end face in the former Plate rear end face and two side rear end faces are commonly through mode connecting vehicle frame front end, bottom of frame or the vehicle frame rear ends such as welding, the latter In rear end panel rear end face by mode connecting vehicle frame front end, bottom of frame or vehicle frame rear ends such as welding.

It addition, mounting post is to realize the insertion of installation portion final spacing setting-in to the card interior promotion that frames up, however locating dowel be to Card pulls outside framing up can also realize the insertion of installation portion and spacing setting-in, specifically as shown in Figure 11～14:

The mounting means that card frames up is identical with Fig. 1～7, and two side 10 rear end faces arrange rear end panel, this rear end panel Rear end face is connected with vehicle frame front end, bottom of frame or vehicle frame rear end, the side of two other symmetry of two symmetrical side sides In the made opening of any one side insert, for installation portion 5, space 13 that card frames up interior or take from the card interior space that frames up Go out.

Installing the card dress portion 11 of locating dowel 14 end in the front console that described card frames up, this card dress portion stretches into card and frames up interior space End penetrate in the pilot hole 9 that vehicle frame front end, bottom of frame or vehicle frame rear end have, card dress portion be positioned at card frame up outside outside Make for blocking the fin on front console surface, bulge loop or the projection 25 that card frames up on edge, the end face outside in card dress portion is pacified Dress locating dowel, the front console that the card outside this locating dowel and card dress portion frames up arranges sleeve 12, the outermost end of this sleeve pipe Portion's engagement suit end cap 23, the locating dowel outer rim outer rim between this end cap and sleeve pipe and card dress portion is set with a spring 15, card dress portion quilt Locating dowel frames up when outside pulls to card and makes installation portion insert in the space that card frames up from opening, and the end in card dress portion is in spring effect Under fill behind hole 8 through the card of installation portion and to be reset in pilot hole.

The process pulling out locating dowel is:

The most under normal circumstances, as shown in Figure 11,12, when spring 15 is uncompressed, card dress portion 11 be predominantly located in space 13, In perforate 21 and sleeve pipe 12, end fraction is positioned at pilot hole 9；

The most as shown in figure 13, pulling termination 24 to the card lateral direction that frames up, locating dowel drives card dress portion by spring-compressed, now blocks Dress portion is wholly or largely positioned at perforate and sleeve pipe, does not block dress portion or only have some card dress portions in space, as shown in figure 13, Installation portion 5 is inserted；

The most as shown in figure 14, unclamping termination, spring reset push card dress portion and reset in pilot hole, card dress portion is predominantly located in In the card dress hole 8 of installation portion, end is positioned at pilot hole, and final fin, bulge loop or projection are stuck in the front console table that card frames up On face, make card dress portion stop, the now installation of installation portion, installation portion by tie-beam make collateral support wheel be pressed in card frame up with On the ground of side.

Pulling out and can also be not provided with rear end panel in the mode of locating dowel, now pilot hole is positioned at vehicle frame front end, bottom of frame Or vehicle frame rear end.

In addition to the fit structure in both the above locating dowel and card dress portion, also have the third structure, specifically as shown in Figure 15～16:

Sliding and be inlaid in the made perforate of front console 21 that card frames up in the front end of described locating dowel 14, the end 28 of locating dowel is worn Enter in the pilot hole 9 that vehicle frame front end, bottom of frame or vehicle frame rear end are arranged, be positioned at the locating dowel outer rim system in the space that card frames up Card release dress portion 11, pilot hole internal messing installs the location between two end faces that a limit base 26, this limit base and card dress portion are relative A spring 15 it is set with in post outer rim.Make in limit base one with the homoaxial endoporus of pilot hole 29, locating dowel space from end is embedded in this In endoporus, limit base end 27 outer rim near card dress portion makes external screw thread, and this external screw thread makes limit base engagement be arranged on pilot hole In.

Described card dress portion is positioned post when promoting to pilot hole direction, made on the end that locating dowel self installation portion is inserted by opening Mounting hole 7 penetrates and enters in the card connected with the installing hole dress hole 8 that this installing hole side is made, and described card dress portion makees at spring The spacing card that is inlaid in of installation portion is made to frame up interior after being reset to described card dress hole under with.

Inwardly the process of promotion locating dowel is:

The most under normal circumstances, as shown in figure 15, when spring 15 is uncompressed, card dress portion 11 is positioned at space 13, locating dowel End is positioned in the limit base of pilot hole 9；

The most as shown in figure 16, promoting locating dowel 14 to pilot hole direction, locating dowel drives the motion of card dress portion, card dress portion and limit base By spring-compressed, card dress portion can completely into pilot hole, be partially into pilot hole or do not enter pilot hole, as long as in space Locating dowel long enough and installation portion just can be allowed from opening insertion more than the thickness of installation portion 5；

The most as shown in figure 15, unclamp locating dowel, spring reset push card dress portion and fill motion in hole to the card of installation portion, when card fills Portion's card that is stuck in as shown in figure 15 frames up and completes the installation of installation portion after inner surface.

Inwardly promote in the mode of locating dowel and rear end panel can also be set, rear end panel be fixed on vehicle frame front end, bottom of frame or Vehicle frame rear end, now pilot hole is positioned on the panel of rear end.

In this utility model, the side rear end that card frames up is connected with the surface of vehicle frame front end, bottom of frame or vehicle frame rear end, also may be used Be the side rear end that frames up of card and and two side rear end between the rear end panel of setting-in is common and at the bottom of vehicle frame front end, vehicle frame The surface of portion or vehicle frame rear end connects, it is also possible to the rear end panel filled on the side rear end that described card frames up and vehicle frame front end, car The surface of bottom frame or vehicle frame rear end connects, the installation portion of interior setting-in collateral support wheel the filled tie-beam upper end setting that frames up at card, peace Dress portion can insert from the opening part blocking any one side that frames up and the spacing card that is inlaid in frames up interior.From said process, operation Librarian use hands both can complete the installation or removal of collateral support wheel, it is not necessary to other instruments, is particularly suited for carrying out out of doors collateral support The dismounting of wheel, it is the most convenient to operate, and after the spacing setting-in of installation portion, stress point is many, and strength is uniformly distributed, it is possible to effectively Ensure the firm of collateral support wheel when child rides.

Claims (10)

1. a child's bicycle collateral support wheel attachment structure, it is characterised in that: including that card frames up, this card frames up surrounding side Any one side has opening, arranges a locating dowel at card frames up front console, and the installation portion in collateral support wheel is in locating dowel Frame up interior promotion or can insert in card frames up from opening part, by installation portion after the reset of described locating dowel when card frames up outer pulling to card The spacing card that is inlaid in frames up interior；

The rear end of two sides that described card frames up is arranged on vehicle frame front end, bottom of frame or vehicle frame rear end, or described card frames up The rear end panel that has of rear end be arranged on vehicle frame front end, bottom of frame or vehicle frame rear end.

A kind of child's bicycle the most according to claim 1 collateral support wheel attachment structure, it is characterised in that: described card frames up The symmetrical side of front console any two be arranged on vehicle frame front end, bottom of frame or the surface of vehicle frame rear end, two are symmetrical The made opening of any one side in the side of two other symmetry of side side inserts card for installation portion and frames up interior sky Between or certainly block frame up interior space take out.

A kind of child's bicycle the most according to claim 1 collateral support wheel attachment structure, it is characterised in that: described card frames up The symmetrical side rear end of front console any two described rear end panel is set, this rear end panel is arranged on vehicle frame front end, car Bottom frame or the surface of vehicle frame rear end, any one the side institute in the side of two other symmetry of two symmetrical side sides The opening of system inserts for installation portion to block and frames up interior space or certainly block the space taking-up framing up interior.

A kind of child's bicycle the most according to claim 2 collateral support wheel attachment structure, it is characterised in that: described locating dowel The front console framed up from card penetrates and passes card and frames up interior space, and the card dress portion that its end is arranged penetrates vehicle frame front end, vehicle frame In bottom or the pilot hole that has of vehicle frame rear end, it is positioned at the frame up end suit one in outside of card in locating dowel and locating dowel can be made to card dress Reset outside frame and make described card dress portion return to card and frame up the spring in interior space, described locating dowel for through described installation portion from opening The mounting hole made on the end that mouth inserts, described card dress portion is in the card dress hole be stuck in the connection of described mounting hole side and makes peace The spacing card that is inlaid in dress portion frames up interior.

A kind of child's bicycle the most according to claim 3 collateral support wheel attachment structure, it is characterised in that: described locating dowel The front console framed up from card penetrates and passes card and frames up interior space, and the card dress portion that its end is arranged penetrates what rear end panel had In pilot hole, locating dowel be positioned at card frame up outside end suit one can make locating dowel to card frame up outside reset and make described card Dress portion returns to card and frames up the spring in interior space, and described locating dowel is for making on the end that opening inserts through described installation portion Mounting hole, described card dress portion is in the card dress hole be stuck in the connection of described mounting hole side and makes the spacing card that is inlaid in of installation portion frame up In.

6. according to the collateral support wheel attachment structure of a kind of child's bicycle described in claim 4 or 5, it is characterised in that: described peace Dress post be positioned at card frame up outside outer rim be sleeved on card frame up outer surface setting sleeve pipe, locating dowel stretch out sleeve pipe end company Connecing an extruding cap, this extruding cap is contained in the outer rim of sleeve pipe near the end sleeve that frames up of card, locating dowel be positioned at card frame up outer surface and Outer rim between extruding cap inner surface is set with described spring, and the side of this spring is positioned at sleeve pipe, and the opposite side of this spring is positioned at crowded In pressure cap.

A kind of child's bicycle the most according to claim 2 collateral support wheel attachment structure, it is characterised in that: described card frames up Front console in install the card dress portion of locating dowel end, this card dress portion stretch into card frame up the end in interior space penetrate vehicle frame front end, In the pilot hole that bottom of frame or vehicle frame rear end have, card dress portion be positioned at card frame up outside outer rim on make and frame up for blocking card The fin on front console surface, bulge loop or projection, the end face outside in card dress portion arranges locating dowel, this locating dowel and card dress Arranging sleeve on the front console that card outside portion frames up, the locating dowel outer rim in this sleeve pipe is set with a spring；

Described card dress portion is positioned when post pulls outside card frames up and makes installation portion insert in the space that card frames up from opening, described card The card that the end in dress portion is made through installation portion end under the action of the spring is reset in pilot hole after filling hole.

A kind of child's bicycle the most according to claim 3 collateral support wheel attachment structure, it is characterised in that: described card frames up Front console in install the card dress portion of locating dowel end, this card dress portion stretches into the frame up end in interior space of card and penetrates rear end panel In the pilot hole having, card dress portion be positioned at card frame up outside outer rim on make for blocking the convex of front console surface that card frames up Rib, bulge loop or projection, arrange locating dowel in the end face outside in card dress portion, before the card outside this locating dowel and card dress portion frames up Arranging sleeve on end plates, the locating dowel outer rim in this sleeve pipe is set with a spring；

Described card dress portion is positioned when post pulls outside card frames up and makes installation portion insert in the space that card frames up from opening, described card The card that dress portion end is made through installation portion end under the action of the spring is reset in pilot hole after filling hole.

A kind of child's bicycle the most according to claim 2 collateral support wheel attachment structure, it is characterised in that: described locating dowel Front end slide be inlaid in the front console that card frames up, the end of locating dowel penetrates vehicle frame front end, bottom of frame or vehicle frame rear end In the pilot hole having, the locating dowel outer rim being positioned at the space that card frames up makes card dress portion, and it is spacing that pilot hole internal messing installs one It is set with a spring in locating dowel outer rim between two end faces that seat, this limit base and card dress portion are relative；

Described card dress portion is positioned post when promoting to pilot hole direction, made on the end that locating dowel self installation portion is inserted by opening Mounting hole penetrates and enters in the card connected with the installing hole dress hole that this installing hole side is made, and described card dress portion is under the action of the spring The spacing card that is inlaid in of installation portion is made to frame up interior after being reset to described card dress hole.

A kind of child's bicycle the most according to claim 2 collateral support wheel attachment structure, it is characterised in that: described location Sliding and be inlaid in the front console that card frames up in the front end of post, the end of locating dowel penetrates in the pilot hole that rear end panel has, position Locating dowel outer rim in the space that card frames up makes card dress portion, and pilot hole internal messing installs a limit base, this limit base and card dress It is set with a spring in locating dowel outer rim between two end faces that portion is relative；

Described card dress portion is positioned post when promoting to pilot hole direction, made on the end that locating dowel self installation portion is inserted by opening Mounting hole penetrates and enters in the card connected with the installing hole dress hole that this installing hole side is made, and described card dress portion is under the action of the spring The spacing card that is inlaid in of installation portion is made to frame up interior after being reset to described card dress hole.