CN205469232U - Brake mechanism and children's shallow - Google Patents

Abstract

The utility model discloses a brake mechanism, install the shallow in children, children's shallow has the car foot, car underfooting end is provided with wheel seat and wheel, be fixed with brake wheel hub on the wheel, brake mechanism is including the brake subassembly, the brake subassembly includes driving piece and brake piece, the brake piece is including first elastic component and brake lever, the driving piece sets up in the wheel seat with the brake piece movablely, first elastic component sets up between driving piece and brake lever, order about brake lever and brake wheel hub block by first elastic component during the driving piece activity. Utilize the elastic deformation of first elastic component, elasticity can order about brake lever block brake wheel hub after brake lever and brake tooth stagger, improves the vacation problem of stopping to provide steady brake mechanism more. Correspondingly, the utility model also discloses a three kinds of children's shallows that have brake mechanism.

Description

Braking mechanism and children trolley

Technical field

This utility model relates to a kind of braking mechanism, particularly relates to a kind of be possible to prevent vacation to stop the braking mechanism of phenomenon and tool There is the children trolley of this braking mechanism.

Background technology

The braking mechanism of Most of children go-cart mainly includes brake hub and brake pedal plate the most on the market.Wherein stop Wheel hub is fixed on axletree (or wheel), and the periphery of brake hub includes multiple spaced brake tooth, adjacent Two brake teeth between formed brake draw-in grooves.Brake pedal plate is pivotably disposed on car body the position near brake hub Put, and on brake pedal plate, be provided with brake lever.When stepping on brake pedal plate downwards with foot, brake pedal plate pivots and carries Dynamic brake lever is inserted in a brake draw-in groove, and now due to the engaging restriction effect of brake lever, axletree cannot be rotated further, real Show brake purpose.When needing mobile handcart, dial up brake pedal plate and make brake lever depart from from brake draw-in groove, then brake Wheel hub is by release the lock, and axletree can be freely rotatable.

But, the braking mechanism of this structure also exists certain potential safety hazard, the situation that vacation is stopped i.e. easily occurs.Specifically , if the end of the end of brake lever and a brake tooth is mutually supported and is not inserted into braking in draw-in groove, brake lever by supporting, Friction serves certain barrier effect to brake hub, makes axletree temporarily cannot rotate, and now user easily takes for Children trolley has braked and has put in place.And it practice, brake lever does not snap in brake draw-in groove, if brake pedal plate or wheel Axle, by from impacts such as extraneous collisions, makes brake lever no longer support the end of brake tooth, then axletree just can freely turn Dynamic, if now children trolley is in sloping floor, it will crisis children's safety.

Vacation can be improved stop problem and the more stable braking mechanism of brake therefore, it is necessary to provide a kind of.

Utility model content

The purpose of this utility model is to provide a kind of and can improve vacation and stop problem and the more stable braking mechanism of brake.

Another purpose of the present utility model is to provide the children trolley with this braking mechanism.

To achieve these goals, this utility model provides a kind of braking mechanism, is installed on children trolley, children trolley Having car foot, car underfooting end is provided with wheel seat and wheel, wheel is fixed with brake hub, and braking mechanism includes brake assemblies, Brake assemblies includes actuator and brake member, and brake member includes the first elastic component and brake lever, and actuator is with brake member actively Being arranged at wheel seat, the first elastic component is arranged between actuator and brake lever, orders about by the first elastic component during actuator activity Brake lever engages with brake hub.

Compared with prior art, this utility model braking mechanism orders about brake group by operation actuator directly or indirectly Part brakes, when brake lever is supported with the brake tooth of brake hub and engage with brake hub, due to actuator and Being provided with the first elastic component between brake lever, the elastic deformation of the first elastic component makes can be had between actuator and brake lever Bigger relative motion surplus, without the most even at the cost of one's life, therefore after brake tooth somewhat staggers with brake lever, at the first elastic component Elastic force order about down, brake lever can automatically engage with brake hub.This braking mechanism efficiently solves vacation and stops problem, Ensure that brake puts in place, be conducive to improving the safety of children trolley.

It is preferred that brake member slides up and down to be arranged at wheel seat, brake lever passes wheel seat and is positioned on brake hub, drives Moving part includes the moving part sliding up and down to be contained in wheel seat, and the upper end elasticity of the first elastic component is resisted against moving part, first Elastic component orders about brake lever slip and snaps in brake hub.

Specifically, brake member also includes the body being positioned at wheel seat, and brake lever is fixed on the lower end of body, the upper end of body Having two spaced side arms, body also includes the protruding locating dowel between two side arms, the lower end of the first elastic component Being positioned locating dowel, the upper end of moving part has the limiting section stretching between two side arms and being positioned at above locating dowel, and first is elastic The upper end of part is resisted against limiting section.

Specifically, actuator also includes tumbler and connector, and tumbler is pivotally installed in wheel seat, and connector connects Between tumbler and moving part, tumbler draws moving part by connector when rotating.

More specifically, connector is an iron wire, one end of iron wire is around being located on tumbler, and the other end of iron wire is positioned at even On moving part.

It is preferred that actuator is positioned at wheel seat, and one end of actuator and wheel seat pivot joint, one end of brake lever is articulated in wheel In seat, outside the other end of brake lever is positioned at wheel seat and be provided with the brake rib that can snap in brake hub, the other end of actuator Brake rib is driven to be flapped toward brake hub by the first elastic component during upper pendulum.

Specifically, brake lever and actuator are articulated in wheel seat coaxially.

Specifically, the first elastic component is torsion spring, and actuator is fixed in one end of torsion spring, brake lever offers one and fixes Hole, the other end of torsion spring passes fixing hole.

Specifically, being additionally provided with the second elastic component between wheel seat and actuator, the second elastic component downward pushing tow actuator makes The other end of actuator has the trend of swung downward.

It is preferred that actuator includes the revolving part being rotatably arranged in wheel seat, elastic by first when revolving part rotates Part orders about brake lever and engages with brake hub.

Specifically, revolving part is rotating disk.

Specifically, brake member further includes the sleeve being slideably positioned in wheel seat, and sleeve is located between revolving part and brake lever, Brake lever one end is slidably connected to sleeve, and the brake lever other end extends towards brake hub and can pass outside wheel seat, the first elastic component Elasticity is resisted against between sleeve and brake lever, and revolving part rotates drive sleeve, and orders about brake lever by the first elastic component and stop Wheel hub engages.

More specifically, revolving part has when revolving part rotates the first inclined-plane pushing out sleeve, when revolving part rotates By the first inclined-plane drive sleeve, and insert brake hub by the first resilient element urges brake lever.

In detail, revolving part offers the arcuate groove accommodating sleeve, and revolving part also has slope trend and the first inclined-plane phase The second inclined-plane answered, the first inclined-plane and the second inclined-plane lay respectively at the both sides of arcuate groove, and sleeve has a contact part of two protrusions, and two Contact part contacts on the first inclined-plane and the second inclined-plane respectively.

More specifically, sleeve is the hollow structure of one end open, and the sidewall of sleeve offers gathering sill, the one of brake lever End is provided with sliding part, and one end of brake lever is contained in sleeve, and sliding part is slideably positioned in gathering sill, the first elastic component position In sleeve.

In detail, the 3rd elastic component, the 3rd resilient element urges sleeve slid inward it are additionally provided with between wheel seat and sleeve.

In detail, brake member includes two brake lever, two first elastic components and two sleeves, and the both sides of revolving part are respectively arranged with First inclined-plane, two sleeves are corresponding with two first inclined-planes respectively, and two brake members are slidably connected to two sleeves respectively, when revolving part rotates Two first elastic components promote two brake lever to stretch out the two sides of wheel seat respectively.

It is preferred that car underfooting end is provided with wheel seat and two wheels, two wheels being respectively equipped with brake hub, brake member includes Two first elastic components and two brake lever, actuator simultaneously drives two first elastic components, with order about two brake lever respectively with both sides Two brake hub engagings.

It is preferred that braking mechanism also includes operating assembly and connecting line, operating assembly includes operating parts and locking piece, operation Part is arranged at the driver of children trolley, and locking piece is connected to operating parts, driver is provided with location division in order to engage with locking piece, One end of connecting line is connected with operating assembly, and the other end of connecting line is connected with actuator, and operating parts makes lock after pulling connecting line One end of locking member snaps in location division, and the other end of operation locking piece makes locking piece move apart location division.

Operating parts is the sliding sleeve being set on driver slidably, and locking piece is the clamp hook piece being articulated on sliding sleeve, and sliding sleeve draws The one end of clamp hook piece after moving that is dynamically connected on line snaps in location division, and during the other end of pressing clamp hook piece, clamp hook piece pivots and departs from location Portion.

It is preferred that connecting line is arranged in driver and car foot.

It is preferred that the upper end of sliding sleeve reach out to be provided with brake operation portion.

It is preferred that operating assembly also includes the sliding part being slideably positioned in driver, sliding part is fixed with sliding sleeve, connecting line One end be fixed on sliding part.

It is preferred that one end of clamp hook piece has the clamping hooked that can snap in location division, the other end of clamp hook piece sets slidably Have a safety lock locking member, safety lock locking member have be resisted against sliding sleeve and limit clamp hook piece pivot top, safety lock locking member can Slip makes top depart from sliding sleeve.

It is preferred that operating assembly also includes a safety lock locking member, safety lock locking member is located at the other end of locking piece slidably, Safety lock locking member has and is resisted against operating parts and limits the top of locking piece action, and safety lock locking member slidably makes top take off From operating parts.

Specifically, operating assembly also includes the return springs being arranged between safety lock locking member and clamp hook piece, reset bullet Property part pushing tow safety lock locking member makes top be resisted against sliding sleeve.

Specifically, sliding sleeve includes the main part being placed on driver and fixes with main part and the receiving portion of side openings, snap fit Part and safety lock locking member are arranged at receiving portion, and top is resisted against the edge of receiving portion.

For realizing another object, this utility model additionally provides a kind of children trolley, including driver and car foot, car underfooting end Being provided with wheel seat and wheel, wheel is fixed with brake hub, children trolley also includes above-mentioned braking mechanism.

Compared with prior art, owing to this children trolley being provided with above-mentioned braking mechanism, therefore, it is possible to be prevented effectively from Vacation is stopped the long-term existence of phenomenon, it is ensured that brake puts in place, improves safety.

Meanwhile, this utility model additionally provides a kind of children trolley, and including driver and at least two car feet, two car underfooting ends set Being equipped with wheel seat and wheel, wheel is fixed with brake hub, also includes above-mentioned braking mechanism, brake assemblies is arranged at a car foot Wheel seat, the wheel seat of another car foot is provided with auxiliary brake assembly, and auxiliary brake assembly includes secondary actuator and auxiliary brake part, auxiliary brake Part includes that secondary elastic component and auxiliary brake bar, one end of secondary actuator are articulated in corresponding wheel seat pivot joint, one end of auxiliary brake bar In corresponding wheel seat, outside the other end of auxiliary brake bar is positioned at wheel seat and be provided with the brake rib that can snap in brake hub, secondary bullet Property part be arranged between secondary actuator and auxiliary brake bar, children trolley also includes a gearing line, interlocks one end of line and is fixed on and stops The actuator of car assembly, the other end interlocking line is fixed on the other end of secondary actuator, logical during pendulum on the other end of secondary actuator Crossing secondary elastic component drives brake rib to be flapped toward the brake hub of correspondence.

Compared with prior art, due to be respectively arranged with in the wheel seat of two car underfooting of this children trolley brake assemblies and Auxiliary brake assembly, by operating the operating assembly of braking mechanism when needing to brake, can allow brake assemblies to corresponding car underfooting Wheel brakes, and the brake of brake assemblies passes to auxiliary brake assembly by interlocking line, makes auxiliary brake assembly same Time the wheel of another car underfooting is braked, two wheels realize synchronous brake, and braking effect is more preferable.And brake assemblies and Make auxiliary brake assembly all can solve vacation to stop problem.

It addition, this utility model additionally provides a kind of children trolley, including driver and at least two car feet, two car underfooting ends set Being equipped with wheel seat and wheel, wheel is fixed with brake hub, children trolley also includes interlocking line and above-mentioned braking mechanism, brake Mechanism includes two brake assemblies, and two brake assemblies are respectively arranged at the wheel seat of two car feet, and the two ends interlocking line are individually fixed in The revolving part of two brake assemblies, drives another revolving part to rotate by gearing line when wherein a revolving part rotates.

Compared with prior art, owing to being respectively arranged with brake assemblies in the wheel seat of two car underfooting of this children trolley, And connecting linkage by interlocking line between two brake assemblies, therefore the brake of one of them brake assemblies can be via Interlock line and pass to another brake assemblies, make two brake assemblies the wheel of two car underfooting be braked simultaneously, brake Better.And two brake assemblies all can solve vacation and stop problem.

Accompanying drawing explanation

Fig. 1 is the side view of this utility model children trolley.

Fig. 2 is the axonometric chart of this utility model children trolley.

Fig. 3 is the structure composition schematic diagram of operating assembly in this utility model braking mechanism.

Fig. 4 is the sectional view during location division that in operating assembly, clamp hook piece snaps on driver.

Fig. 5 is the schematic diagram after safety lock locking member is pressed down in Fig. 4.

Fig. 6 is the schematic diagram that in Fig. 5, clamp hook piece pivots after departing from location division.

Fig. 7 is to arrange the schematic diagram at the wheel seat of brake assemblies.

Fig. 8 is the structure composition schematic diagram of brake assemblies.

Fig. 9 is the sectional view under the non-braking state of brake assemblies.

Figure 10 is the sectional view under brake assemblies braking state.

Figure 11 is the structural representation of revolving part in brake assemblies.

Figure 12 is moving part and the structural representation of brake member in brake assemblies.

Figure 13 is to arrange the schematic diagram at the wheel seat of auxiliary brake assembly.

Figure 14 is the structure composition schematic diagram of auxiliary brake assembly.

Figure 15 is the sectional view under the non-braking state of auxiliary brake assembly.

Figure 16 is the explosive view of auxiliary brake assembly.

Figure 17 is the axonometric chart of children trolley in this utility model the second embodiment.

Figure 18 is to arrange the axonometric chart at a wheel seat of brake assemblies in the second embodiment.

Figure 19 be in Figure 18 wheel hide after schematic diagram.

Figure 20 is the structure composition schematic diagram of brake assemblies in the second embodiment.

Figure 21 is the floor map of brake assemblies in Figure 20.

Figure 22 is the structural representation of the revolving part of brake assemblies in the second embodiment.

Figure 23 is the sectional view under the non-braking state of brake assemblies.

Figure 24 is that brake assemblies vacation is stopped the sectional view under state.

Figure 25 is the sectional view under brake assemblies braking state.

Figure 26 is to arrange the plane graph at another wheel seat of another brake assemblies in the second embodiment.

Drawing reference numeral illustrates:

1 children trolley 11 driver 111 side lever 111a location division

111b elongated slot 12 front truck foot 13 rear car foot 14 cross bar

15 wheel 16 brake hub 171,172 wheel seat 171a, 172a through holes

171b elongate slots

2 operating assembly 21 sliding sleeve 211 main part 212 receiving portions

213 brake operation portion 22 sliding part 221 connecting groove 23 clamp hook pieces

231 press section, clamping hooked 24 safety lock locking member 241 tops 242

25 return springs 26 clamp hook piece torsion springs

3 connecting lines

4 brake assemblies 40 first elastic component 41 brake member 411 brake lever

412 body 412a side arm 412b locating dowel 42 moving parts

421 limiting section 43 tumbler 431 pivoted hole 432 wiring holes

433 pilum 44 connectors

5 interlock line

The secondary actuator 611 of 6 auxiliary brake assemblies 61 fixes post 62 torsion spring

63 auxiliary brake bars 631 brake rib 632 fixing hole 64 second elastic component

1 ' children trolley 173,174 wheel seat 173a the first housing 173b the second housing

173c, 173d through hole 173e guide 173f guide groove

7 brake assemblies 71 brake lever 711 sliding part 72 first elastic components

73 the 3rd elastic component 74 revolving part 740 circular hole 741 arcuate grooves

742 first inclined-plane 744 first, inclined-plane 743 second wiring hole 745 second wiring holes

75 sleeve 751 contact part 752 gathering sills

Detailed description of the invention

Below in conjunction with the Figure of description provided, description is made in preferred embodiment of the present utility model.

In conjunction with Fig. 1 to Fig. 4 and Fig. 8, Fig. 9, this utility model provides a kind of braking mechanism being mountable to children trolley 1, Children trolley 1 has driver 11 and car foot, and car underfooting end is provided with wheel seat and wheel 15, wheel 15 is fixed with brake hub 16.Braking mechanism includes operating assembly 2, connecting line 3 and brake assemblies 4, and operating assembly 2 includes operating parts and locking piece, wherein Operating parts is arranged at driver 11, and locking piece is connected to operating parts, driver 11 is provided with location division 111a in order to locking piece card Close.Brake assemblies 4 includes actuator and brake member 41, and brake member 41 includes the first elastic component 40 and brake lever 411, actuator with Brake member 41 is arranged at wheel seat actively, and the first elastic component 40 is arranged between actuator and brake lever 411, the first elastic component 40 It is not required to the most directly contact with actuator and brake lever 411, only needs to pass to stop by elastic force by the action of actuator Car bar 411 is with driving brake bar 411.One end of connecting line 3 is connected with operating assembly 2, the other end of connecting line 3 and driving Part connects.When user is to be braked, operating operating parts and pull on connecting line 3 after shifting, actuator is connected mat when line 3 pulls Ordered about brake member 41 action by the first elastic component 40 and make brake lever 411 engage with brake hub 16, to reach effect of braking；With Time, one end of locking piece can engage with location division 111a, in order to brake assemblies 4 is positioned at braking locking position.Work as user During brake to be released, the other end of operation locking piece can make locking piece move apart location division 111a so that brake structure release the lock is returned Multiple to the position do not braked, therefore user can continue to press on children trolley 1.

Above-mentioned operating parts can be the sliding sleeve 21 being set in slidably on driver 11, and locking piece can be to be articulated on sliding sleeve 21 Clamp hook piece 23, when sliding sleeve 21 pull on connecting line 3 move after, brake assemblies 4 can be made to move to braking locking position, now snap fit One end of part 23 can engage with location division 111a, in order to brake assemblies 4 to be positioned at braking locking position, pressing clamp hook piece 23 During the other end, clamp hook piece 23 pivots and departs from location division 111a so that brake structure release the lock is also returned to the position do not braked.

As shown in Figure 1 and Figure 2, in the present embodiment, the quantity of car foot is four, and four car feet include two front truck feet 12 and two Rear car foot 13, the upper end of each front truck foot 12 and the upper end pivot joint of the rear car foot 13 of homonymy, connect between the lower end of two rear car feet 13 Connect and be fixed with a cross bar 14.The lower end of front truck foot 12 and rear car foot 13 is provided with wheel 15, the wheel of two rear car foot 13 lower ends Be fixed with brake hub 16 inside 15, and two rear car foot 13 lower ends be also respectively provided with the wheel seat 171 adjacent with brake hub 16, 172.Driver 11 takes the shape of the letter U and includes that two side levers 111, two side levers 111 are separately positioned on two rear car feet 13.Braking mechanism also wraps Include gearing line 5 and auxiliary brake assembly 6.Operating assembly 2 is arranged on a side lever 111 of driver 11, and brake assemblies 4 is arranged on and grasps Making the wheel seat 171 under the rear car foot 13 of assembly 2 homonymy, auxiliary brake assembly 6 is arranged on the wheel seat 172 under another rear car foot 13.Even Wiring 3 is connected between operating assembly 2 and brake assemblies 4, and connecting line 3 is arranged in the car of homonymy along direction shown in Fig. 1 In hands 11 and rear car foot 13.Interlock line 5 to be connected between brake assemblies 4 and auxiliary brake assembly 6, as in figure 2 it is shown, connecting line 5 liang End connects brake assemblies 4 and auxiliary brake assembly 6 respectively, and in this embodiment, connecting line 5 is arranged on outside cross bar 14 and rear car foot 13 Side；Can also be arranged in rear car foot 13 and cross bar 14 it is understood that interlock line 5, can reach to interlock the effect of brake equally Really.When pulling up sliding sleeve 21, sliding sleeve 21 drives and moves on connecting line 3, and connecting line 3 orders about brake assemblies 4 and makes brake, Brake assemblies 4 drives auxiliary brake assembly 6 also to make brake by gearing line 5 while action, thus realizes two rear cars The synchronous brake of 13 times wheels 15 of foot.

With reference to Fig. 3 to Fig. 6, operating assembly 2 also includes sliding part 22, safety lock locking member 24, return springs 25 and snap fit Part torsion spring 26.Sliding sleeve 21 includes the main part 211 sliding up and down to be placed on side lever 111 and fixes and side with main part 211 The receiving portion 212 of opening.The upper end of main part 211 is provided with brake operation portion 213 with stretching out expansion, thus conveniently uses hands Refer to catch on sliding sleeve 21 and pull up.Fix, when sliding sleeve 21 is on side lever 111 in sliding part 22 is contained in side lever 111 and with sliding sleeve 21 During slip, sliding part 22 is followed sliding sleeve 21 and is slided.The lower end of sliding part 22 offers connecting groove 221, and connecting line 3 (is shown in figure 1) upper end by connecting groove 221 penetrate sliding part 22 within and fix with sliding part 22.Clamp hook piece 23, safety lock locking member 24 and Return springs 25 may be contained within receiving portion 212.Clamp hook piece 23 and receiving portion 212 pivot joint, the lower end of clamp hook piece 23 have one to The clamping hooked 231 of side lever 111 bending.Offer a location division 111a on side lever 111 and run through two sidewalls that side lever 111 is relative Elongated slot 111b, location division 111a specially position hole, as Figure 4-Figure 6, location division 111a is positioned at the lower section of elongated slot 111b.Sliding Set 21 is connected by connectors such as rivets between sliding part 22, and elongated slot 111b offers so that the connectors such as rivet can opposite side Bar 111 slides up and down, so that it is guaranteed that sliding sleeve 21 can drive sliding part 22 smoothly.As shown in Figure 4, clamp hook piece torsion spring 26 is arranged at Between sliding sleeve 21 and clamp hook piece 23 and provide and make the elastic force that clamp hook piece 23 rotates counterclockwise.When being in braking state, clamping hooked 231 can through the main part 211 of sliding sleeve 21 and snap onto in the 111a of location division under the elastic force of clamp hook piece torsion spring 26 orders about, and Clamp hook piece torsion spring 26 can make clamp hook piece 23 be held in fastening state.Under non-braking conditions, as shown in Figure 6, clamping hooked 231 Position is less than 111a position, location division, needs to pull up sliding sleeve 21 and just can make position and 111a pair, the location division of clamping hooked 231 Standard also snaps in.When pressing the upper end of clamp hook piece 23, clamp hook piece 23 pivots and makes clamping hooked 231 depart from location division 111a.Safety locking Part 24 slides up and down to be arranged at the upper end of clamp hook piece 23, and safety lock locking member 24 has and is positioned at receiving portion 212 edge of opening Outside the top 241 supported with receiving portion 212.Return springs 25 be arranged on safety lock locking member 24 and clamp hook piece 23 it Between, return springs 25 upwards pushing tow safety lock locking member 24 makes the top 241 of safety lock locking member 24 can keep being resisted against appearance Receive the state in portion 212.Due to safety lock locking member 24 supporting receiving portion 212 so that clamp hook piece 23 cannot be freely rotatable, therefore Clamping hooked 231 is without departing from location division 111a, and operating assembly 2 is locked on side lever 111, and children trolley 1 can be held in brake State (as shown in Figure 4).

In conjunction with Fig. 5 and Fig. 6, when needing release the lock operating assembly 2, must slide downward safety lock locking member 24 make first by person Staggering with receiving portion 212 edge of opening in top 241, then presses inward against safety lock locking member 24 and make clamp hook piece 23 pivot.Work as card After conjunction hook 231 departs from location division 111a, sliding sleeve 21 just can on side lever 111 slidably.Behaviour for the ease of slide downward Make, safety lock locking member 24 also has outwardly press section 242.Safety lock locking member 24 can be considered second safety lock, uses To prevent children trolley accident release the lock.

In conjunction with Fig. 7 to Fig. 9, the actuator of brake assemblies 4 includes the moving part sliding up and down to be contained in wheel seat 171 42, the tumbler 43 being pivotally installed in wheel seat 171 and the connector 44 being connected between tumbler 43 and moving part 42.Even A fitting 44 particularly iron wire, one end of connector 44 is rich to be located on tumbler 43, and the other end of connector 44 is positioned at even On moving part 42.When forward (clockwise) rotation is done in shown position to tumbler 43 in fig .9, connector 44 company of pulling can be passed through Moving part 42 moves down.A connecting line 3 through hole 171a from wheel seat 171 penetrates and is fixed on tumbler 43, pulls up Be dynamically connected line 3 time, tumbler 43 can be driven and be rotated forward.In order to realize the wire laying mode shown in Fig. 9, tumbler The structure of 43 as shown in figure 11, tumbler 43 has pivoted hole 431, wiring hole 432 and pilum 433, and tumbler 43 passes through pivot Connecing hole 431 to be articulated in wheel seat 171, it is interior to fix with tumbler 43 that connecting line 3 penetrates wiring hole 432, one end of connector 44 Have mercy on and be located at pilum 433.It is of course also possible to arrange a projection or roller (not shown) in wheel seat 171, allow the connecting line 3 penetrated It is fixed to again after walking around projection or roller on tumbler 43, effect can be reached equally.Brake member 41 slides up and down to be arranged at wheel Seat 171, brake member 41 includes the body 412 being positioned at wheel seat 171, and brake lever 411 is penetratingly fixed on the lower end of body 412, And brake lever 411 is positioned on both sides brake hub 16 after both sides pass wheel seat 171, wheel seat 171 both sides offer confession Elongate slots 171b that brake lever 411 slides up and down, so can brake to two wheels 15 simultaneously.First elastic component 40 is arranged at Between actuator and brake lever 411, concrete, the upper end elasticity of the first elastic component 40 is resisted against moving part 42, the first elastic component The lower end elasticity of 40 is resisted against body 412.

During as it is shown in figure 9, need brake, connecting line 3 is pulled upward, and tumbler 43 rotates forward and passes through connector 44 Pulling moving part 42 to move down, the moving part 42 moved down is compressed downwards the first elastic component 40 and is driven by the first elastic component 40 Body 412 also moves down, and moves down simultaneously with the fixing brake lever 411 of body 412 and (is shown in figure with brake hub 16 8) engaging, by locked for wheel 15, it is achieved that brake；If brake lever 411 is stuck in brake hub 16 and brakes (now user on tooth Because having pulled sliding sleeve 21, so brake can be takeed for having been started up, being vacation and stopping phenomenon), once brake lever 411 and brake After tooth staggers, the elastic force of the first elastic component 40 can order about brake lever 411 to be continued to move to brake hub 16 and engage, and completes to stop The action of car.It follows that the setting of above-mentioned first elastic component 40 be possible to prevent brake lever 411 withstand brake tooth and strength of braking The excessive vacation caused is stopped phenomenon.As shown in Figure 10, interlock line 5 and be fixed on moving part 42, and passed by through hole 171a.Moving part 42 when moving down, and interlocks line 5 pulled down.

Referring again to Figure 12, the upper end of the body 412 of brake member 41 has two spaced side arm 412a, and body 412 is also Including protruding locating dowel 412b between two side arms 412a, the lower end of the first elastic component 40 is positioned locating dowel 412b, The upper end of moving part 42 has the limiting section 421 stretching between two side arms 412a and being positioned at above locating dowel 412b, and first is elastic The upper end of part 40 is resisted against limiting section 421.

In conjunction with Figure 13 to Figure 16, auxiliary brake assembly 6 includes secondary actuator 61 and auxiliary brake part, and auxiliary brake part includes secondary elastic Part and auxiliary brake bar 63.Secondary actuator 61 is positioned at wheel seat 172, and one end of secondary actuator 61 and wheel seat 172 pivot joint, interlocks line 5 are penetrated and are fixed on the other end of secondary actuator 61 by the through hole 172a on wheel seat 172.Interlock when line 5 is pulled up and order about pair The other end of actuator 61 is swung up.Auxiliary brake bar 63 is convexly curved structure, its one end and secondary actuator 61 pivot coaxially It is connected in wheel seat 172, outside the other end of auxiliary brake bar 63 is positioned at wheel seat 172 and be provided with the brake that can snap in brake hub 16 Rib 631, the rib 631 that brakes under non-braking conditions does not engages with brake hub 16.As shown in Figure 13 and Figure 16, brake rib 631 is to two The brake hub 16 on limit extends, so can brake two wheels 15 simultaneously.Secondary elastic component is arranged at secondary actuator 61 with secondary Between brake lever 63, concrete, secondary elastic component is a torsion spring 62, and secondary actuator 61 and wheel seat 172 are fixed in one end of torsion spring 62 The position of pivot joint, auxiliary brake bar 63 offers a fixing hole 632, and the other end of torsion spring 62 passes fixing hole 632.With reference to Figure 14 To 15, when braking, secondary actuator 61 other end is swung up, therefore with auxiliary brake bar 63 under the traction interlocking line 5 Being pivoted relative to each other, make the other end of the other end of secondary actuator 61 and auxiliary brake bar 63 away from each other, torsion spring 62 is stretched and stores up Deposit elastic potential energy, driven brake rib 631 to be flapped toward brake hub 16 by torsion spring 62；As shown in figure 15, if auxiliary brake bar The brake rib 631 of 63 is stuck in brake hub 16 and brakes on tooth that (now user is because having pulled sliding sleeve 21, so can take for Have been started up brake, be vacation and stop phenomenon), after once brake rib 631 staggers with brake tooth, the elastic force of torsion spring 62 can order about brake Rib 631 continues to be flapped toward brake hub 16, and completes the action of brake.Above-mentioned secondary actuator 61 is possible to prevent with the structure of torsion spring 62 Brake rib 631 withstands brake tooth and the excessive vacation caused of strength of braking is stopped phenomenon.Also set up between wheel seat 172 and secondary actuator 61 Having the second elastic component 64, the upper end elasticity of the second elastic component 64 to be resisted against wheel seat 172, the lower end elasticity of the second elastic component 64 is supported In the other end of secondary actuator 61, the second downward pushing tow pair actuator 61 of elastic component 64 make the other end of pair actuator 61 have to The trend of lower swing.As shown in figure 16, concrete, the other end of secondary actuator 61 has the fixing post 611 of projection, then reviews figure 15, the lower end of the second elastic component 64 is positioned fixing post 611, and interlocks line 5 and be also secured on fixing post 611.

In conjunction with Fig. 2, Figure 10 and Figure 15, when braking, the moving part 42 of brake assemblies 4 is at tumbler 43 and connector Move down under the ordering about of 44, make brake lever 411 complete brake, and interlock line 5 and the fixing one end of moving part 42 also by Pull downward on, cause interlocking line 5 entirety and offset to brake assemblies 4 along cross bar 14 from auxiliary brake assembly 6, therefore interlock line 5 with secondary This fixing one end of secondary actuator 61 of brake assemblies 6 has been pulled upwardly, and the secondary actuator 61 pulled by gearing line 5 enters one Step is ordered about brake rib 631 and is completed brake.Here it is brake assemblies 4 is capable of the interior of synchronous brake with auxiliary brake assembly 6 Portion's principle.

First elastic component the 40, second elastic component 64 and return springs 25 in the present embodiment are compression spring.This reality Focus on braking mechanism with novel, therefore the miscellaneous part of children trolley 1 is not introduced.

Compared with prior art, in the braking mechanism of this utility model children trolley 1 operating assembly 2 by connecting line 3 with Brake assemblies 4 connects and interlocks, and brake assemblies 4 is connected linkage by gearing line 5 with auxiliary brake assembly 6 again, ordinary circumstance Under, up pull sliding sleeve 21 just can order about brake lever 411 and corresponding brake wheel by connecting line 3 and actuator along driver 11 Hub 16 engages, and brake rib 631 also engages with another brake hub 16 simultaneously, it is achieved that the synchronization of 13 times wheels 15 of two rear car feet Brake.When brake lever 411 is supported with the brake tooth of brake hub 16 and is not engaged with brake hub 16, due to actuator with Be provided with the first elastic component 40 between brake lever 411, the elastic deformation of the first elastic component 40 make actuator and brake lever 411 it Between can have bigger relative motion surplus, without mutually the most even at the cost of one's life.After brake tooth somewhat staggers with brake lever 411, The elastic force of the first elastic component 40 orders about down, and brake lever 411 can engage with brake hub 16 automatically.In like manner understand, torsion spring 62 Setting also make, between secondary actuator 61 and auxiliary brake bar 63, there is motion surplus, order about brake rib 631 and brake hub 16 Engaging.This children trolley 1, by arranging braking mechanism, efficiently solves vacation and stops problem, it is ensured that brake puts in place, improves safety Property.

In the present embodiment, the brake assemblies 4 of braking mechanism is separately positioned on two rear car feet 13 times with auxiliary brake assembly 6, but It is that brake assemblies 4 can also be respectively provided to two front truck feet 12 times with auxiliary brake assembly 6, it is also possible to by brake assemblies 4 with secondary Brake assemblies 6 is separately positioned on front truck foot 12 and rear car foot 13.It addition, the quantity of brake assemblies 4 and auxiliary brake assembly 6 is the most not Being defined in one, its quantity can set according to needs of production.

In above example, braking mechanism includes two kinds of different brake assemblies simultaneously, at another kind of the present utility model In implementation, braking mechanism can only include operating assembly 2, connecting line 3 and a kind of brake assemblies.Brake assemblies is arranged at Car underfooting is also connected with operating assembly 2 by connecting line 3, operating assembly 2 and the structure of connecting line 3 and set-up mode all with more than In embodiment identical.Brake assemblies also includes actuator and brake member, and brake member includes brake lever and the first elastic component, brake group Part both can be the brake assemblies 4 in a upper embodiment, it is also possible to be the auxiliary brake assembly 6 in a upper embodiment.When brake group When part uses the structure identical with the auxiliary brake assembly 6 in a upper embodiment, the actuator of brake assemblies, brake member, brake lever And first elastic component be respectively equivalent to the secondary actuator 61 of auxiliary brake assembly 6, auxiliary brake part, auxiliary brake bar 63 and torsion spring 62, and And, actuator is no longer pulled by gearing line 5, but directly fixes with connecting line 3 and pulled by connecting line 3.

It is second embodiment of the present utility model shown in Figure 17 to Figure 26.

As shown in figure 17, in the present embodiment, the overall structure of children trolley 1 ' is identical with first embodiment, also includes car Hands 11, front frame 12 and rear car foot 13, front and back car underfooting is provided with wheel 15, and two rear car feet 13 times are respectively provided with wheeled base 173, braking mechanism it is also equipped with on 174, and children trolley 1 ' to realize brake.Braking mechanism in the present embodiment includes two The individual brake assemblies 7 being respectively arranged at two wheel seats 173,174 and the operating assembly 2 identical with first embodiment, connecting line 3 And interlock line 5.Operating assembly 2 is arranged on driver 11, and connecting line 3 is connected between operating assembly 2 and a brake assemblies 7, even Moving-wire 5 is connected between two brake assemblies 7, by operation operating assembly 2, it is possible to achieve the synchronization of two brake assemblies 7 is stopped Car.Connecting line 3 is implemented with connected mode and the connecting line 3 arrangement and first on children trolley 1 ' of operating assembly 2 In example identical, interlock the line 5 arrangement on children trolley 1 ' also identical with first embodiment.

With reference to Figure 18,19, wheel seat 173 is positioned at the centre of wheel 15, and two brake hubs 16 fixing with wheel 15 are (in figure Only display one) lay respectively at the both sides of wheel seat 173.Brake assemblies 7 includes two brake lever 71, and two brake lever 71 can be relative Wheel seat 173 stretches out or is retracted in wheel seat 173, when two brake lever 71 protrude from the two sides of wheel seat 173 respectively, and two brake lever 71 are inserted respectively in two brake hubs 16 thus engage with brake hub 16, and then make wheel 15 to rotate, it is achieved brake. With continued reference to Figure 19, wheel seat 173 is mutually fastened formed by a first bigger housing 173a and a second less housing 173b, Being provided with adjacent two through hole 173c, 173d on wheel seat 173, through hole 173c, 173d connect with the inner space of wheel seat 173.

In conjunction with Figure 22 to Figure 25, brake assemblies 7 includes actuator and brake member, and wherein brake member includes two first elasticity 72, two brake lever 71 of part and two sleeves 75, actuator includes a revolving part 74；Additionally, between wheel seat 173 and sleeve 75 It is additionally provided with the 3rd elastic component 73.Having the guide 173e of a horizontal expansion in wheel seat 173, the wheel shaft of wheel 15 can extend through and lead Cylinder 173e.Revolving part 74 is a kind of rotating disk, and center has circular hole 740 and is enclosed within guide 173e, so that revolving part 74 Can rotate in wheel seat 173, and the centerline axis parallel rotated and wheel 15 is axial.Two it are provided with in wheel seat 173 Guide groove 173f, two sleeves 75 are slidably arranged in guide groove 173f respectively, and sleeve 75 can be along the axially opposing wheel seat of wheel 15 173 slide.Penetratingly offering two arcuate grooves 741 on revolving part 74, two sleeves 75 are respectively accommodated in two arcuate grooves 741 In, therefore the rotation of revolving part 74 will not be produced and interfere by sleeve 75.The two side of each arcuate groove 741 is respectively formed with first Inclined-plane 742 and the second inclined-plane 743, the first inclined-plane 742 is positioned at outside, and the second inclined-plane 743 is positioned at inner side and has and the first inclined-plane 742 corresponding slope trends.The inclined-plane of two arcuate groove 741 correspondences towards being contrary, i.e. one arcuate groove 741 both sides First inclined-plane 742 and the second inclined-plane 743 towards the first housing 173a, and the first inclined-plane 742 of another arcuate groove 741 both sides with Second inclined-plane 743 is then towards the second housing 173b.Two sleeves 75 are oppositely arranged, and the sidewall of each sleeve 75 has two protrusions Contact part 751, conflict respectively on the first corresponding inclined-plane 742 and the second inclined-plane 743 in two contact parts 751.When revolving part 74 When forward () rotates in Figure 22 counterclockwise, promote corresponding towards first inclined-plane 742 of the first housing 173a with the second inclined-plane 743 Sleeve 75 slides to the first housing 173a, simultaneously towards another first inclined-plane 742 and another second inclined-plane 743 of the second housing 173b Another corresponding sleeve 75 is promoted to slide to the second housing 173b.

In conjunction with Figure 20, Figure 23 to Figure 25, two brake lever 71 are slidably connected with two sleeves 75 respectively, concrete, sleeve 75 in The hollow structure of one end open, and one end of sleeve 75 opening is outwardly, and the sidewall of sleeve 75 offers gathering sill 752.Brake One end of bar 71 is provided with sliding part 711, and one end of brake lever 71 is contained in sleeve 75, and sliding part 711 is slideably positioned in leads In groove 752, therefore brake member can in sleeve 75 sliding axially along wheel 15.Each first elastic component 72 is arranged at correspondence Brake lever 71 and actuator between, enable the action of actuator to pass to brake lever 71 by the elastic force of the first elastic component 72 And driving brake bar 71.Concrete, within the first elastic component 72 is positioned at a sleeve 75 of correspondence and elasticity is resisted against this sleeve 75 And it is slidably connected between the brake lever 71 of this sleeve 75.First housing 173a and the second housing 173b perforate respectively, two the Under the ordering about of one elastic component 72, two brake lever 71 can be stretched out the two sides of wheel seat 173 respectively and insert in two brake hubs 16 And engage with brake hub 16.Each 3rd elastic component 73 is positioned at a guide groove 173f and elasticity is resisted against wheel seat 173 with corresponding Sleeve 75 between, the 3rd elastic component 73 provides and makes the elastic force of sleeve 75 reverse slide, in other words be exactly to convey towards the first shell The sleeve 75 of the 742, second inclined-plane 743, the first inclined-plane correspondence of body 173a slides away from the first housing 173a, and transference is towards second Another sleeve 75 of the 742, second inclined-plane 743, first inclined-plane correspondence of housing 173b slides away from the second housing 173b.At sleeve While 75 reverse slide, order about revolving part 74 also by the conflict of contact part 751 with inclined-plane and rotate backward.

With reference to Figure 20 to Figure 22, the outward flange of revolving part 74 is provided with the first wiring hole 744 and the second wiring hole 745, the 180 degree substantially it are spaced between one wiring hole 744 and the second wiring hole 745.One end of connecting line 3 penetrates wheel seat 173 from through hole 173c In and in stretching into the first wiring hole 744 thus realize with revolving part 74 fixing.The one end interlocking line 5 is fixed on the second wiring hole In 745 and pass from the through hole 173d of wheel seat 173.

In conjunction with Figure 17 and Figure 23 to Figure 25, when needing children trolley 1 ' is braked, operate operating assembly 2, connecting line 3 It is pulled up and is rotated further part 74 to rotate forward, revolving part 74 rotation process pushes out two sleeves 75, and two overlap The slip of cylinder 75 is ordered about again two first elastic components 72 and is promoted two brake lever 71 to stretch out outside wheel seat 173 to two contrary directions, and two stop Car bar 71 engages with the brake hub 16 of both sides respectively, it is achieved two wheel 15 synchronous brakes, and then provides more stable brake merit Effect.Owing to being provided with the first elastic component 72 between sleeve 75 and brake member, even if there is brake lever 71 and brake when just starting to brake The vacation that wheel hub 16 is supported and do not engaged is stopped phenomenon (as shown in figure 24), it is also possible to somewhat turn over certain angle at brake hub 16 Elastic force by the first elastic component 72 promotes brake lever 71 to insert brake hub 16 afterwards.Visible, brake assemblies 7 can effectively solve the problem that Vacation is stopped problem.

As shown in figure 25, another brake assemblies 7 is arranged in another wheel seat 174, interlocks line 5 and stretches in this wheel seat 174 And it is fixing with the revolving part 74 of this brake assemblies 7.When another brake assemblies 7 brakes, gearing line 5 is pulled thus drives This brake assemblies 7 is made also to synchronize to brake.

The first elastic component 72 in the present embodiment is also compression spring as the 3rd elastic component 73 and a upper embodiment.

It is last it should be noted that for braking mechanism of the present utility model, operating assembly 2 is with connecting line 3 not Being to order about the exclusive architecture that brake assemblies carries out braking, operating assembly 2 and connecting line 3 simply facilitate user and realize brake and solve A kind of easy way of lock.Braking mechanism can only include brake assemblies and be not provided with operating assembly 2 and connecting line 3, by The pedal being connected with the actuator of brake assemblies is set on wheel seat, brake group when pedal is trampled or stirred to user, can also be ordered about Part brakes.Concrete, pedal can be connected with the tumbler 43 in first embodiment and order about tumbler 43 and rotates forward, or Person, pedal directly can be connected with moving part 42 and order about moving part 42 and declines, when pedal is directly connected with moving part 42, brake In assembly 74, revolving part 74 and connector 44 also can omit.And in a second embodiment, pedal is connected with revolving part 74 and orders about Revolving part 74 rotates forward.

Above disclosed only preferred embodiments of the present utility model, its effect is to facilitate those skilled in the art Understand and also implement according to this, certainly can not limit the interest field of this utility model with this, therefore special according to this utility model application The equivalent variations that profit scope is made, still falls within the scope that this utility model is contained.

Claims (30)

1. a braking mechanism, is installed on children trolley, and described children trolley has car foot, and described car underfooting end is provided with wheel seat And wheel, described wheel is fixed with brake hub,

It is characterized in that: described braking mechanism includes that brake assemblies, described brake assemblies include actuator and brake member, described in stop Car part includes that the first elastic component and brake lever, described actuator and brake member are arranged at described wheel seat, described first bullet actively Property part is arranged between described actuator and brake lever, during described actuator activity by described first elastic component order about described in stop Car bar engages with described brake hub.

2. braking mechanism as claimed in claim 1, it is characterised in that: described brake member slides up and down to be arranged at described wheel Seat, described brake lever passes described wheel seat and is positioned on described brake hub, and described actuator includes sliding up and down to accommodate Moving part in described wheel seat, the upper end elasticity of described first elastic component is resisted against described moving part, described first elastic component Order about the slip of described brake lever and snap in described brake hub.

3. braking mechanism as claimed in claim 2, it is characterised in that: described brake member also includes the basis being positioned at described wheel seat Body, described brake lever is fixed on the lower end of described body, and the upper end of described body has two spaced side arms, described body Also include that the lower end of described first elastic component is positioned described locating dowel in protruding locating dowel between side arm described in two, The upper end of described moving part has to be stretched into described in two between side arm and is positioned at the limiting section above described locating dowel, described first bullet The upper end of property part is resisted against described limiting section.

4. braking mechanism as claimed in claim 2, it is characterised in that: described actuator also includes tumbler and connector, institute Stating tumbler to be pivotally installed in described wheel seat, described connector is connected between described tumbler and described moving part, institute State when tumbler rotates and draw described moving part by described connector.

5. braking mechanism as claimed in claim 4, it is characterised in that: described connector is an iron wire, one end of described iron wire Around being located on described tumbler, the other end of described iron wire is positioned on described moving part.

6. braking mechanism as claimed in claim 1, it is characterised in that: described actuator is positioned at described wheel seat, and described in drive One end of moving part and described wheel seat pivot joint, one end of described brake lever is articulated in described wheel seat, the other end of described brake lever Outside being positioned at described wheel seat and be provided with the brake rib that can snap in described brake hub, logical during pendulum on the other end of described actuator Crossing described first elastic component drives described brake rib to be flapped toward described brake hub.

7. braking mechanism as claimed in claim 6, it is characterised in that: described brake lever is articulated in coaxially with described actuator Described wheel seat.

8. braking mechanism as claimed in claim 6, it is characterised in that: described first elastic component is torsion spring, the one of described torsion spring End is fixed on described actuator, and described brake lever offers a fixing hole, and the other end of described torsion spring passes described fixing hole.

9. braking mechanism as claimed in claim 6, it is characterised in that: it is additionally provided with the between described wheel seat and described actuator Two elastic components, actuator described in the described second downward pushing tow of elastic component makes the other end of described actuator have becoming of swung downward Gesture.

10. braking mechanism as claimed in claim 1, it is characterised in that: described actuator includes being rotatably arranged in described wheel Revolving part in Zuo, orders about described brake lever and described brake hub card by described first elastic component when described revolving part rotates Close.

11. braking mechanisms as claimed in claim 10, it is characterised in that: described revolving part is rotating disk.

12. braking mechanisms as claimed in claim 10, it is characterised in that: described brake member further includes and is slideably positioned in described wheel Sleeve in Zuo, described sleeve is located between described revolving part and described brake lever, and described brake lever one end is slidably connected to institute Stating sleeve, the described brake lever other end extends towards described brake hub and can pass outside described wheel seat, described first elastic component bullet Property be resisted against between described sleeve and described brake lever, described revolving part rotates and drives described sleeve, and by described first bullet Property part orders about described brake lever and engages with described brake hub.

13. braking mechanisms as claimed in claim 12, it is characterised in that: described revolving part has when described revolving part rotates Push out the first inclined-plane of described sleeve, drive described sleeve by described first inclined-plane when described revolving part rotates, and lead to Cross brake lever described in described first resilient element urges and insert described brake hub.

14. braking mechanisms as claimed in claim 13, it is characterised in that: described revolving part offers the arc accommodating described sleeve Shape groove, described revolving part also has slope trend second inclined-plane corresponding with described first inclined-plane, and described first inclined-plane is with described Second inclined-plane lays respectively at the both sides of described arcuate groove, and described sleeve has the contact part of two protrusions, and contact part described in two is respectively Contact on described first inclined-plane and described second inclined-plane.

15. braking mechanisms as claimed in claim 12, it is characterised in that: described sleeve is the hollow structure of one end open, and The sidewall of described sleeve offers gathering sill, and one end of described brake lever is provided with sliding part, and one end of described brake lever accommodates In described sleeve, described sliding part is slideably positioned in described gathering sill, and described first elastic component is positioned at described sleeve.

16. braking mechanisms as claimed in claim 13, it is characterised in that: it is additionally provided with the 3rd between described wheel seat and described sleeve Elastic component, sleeve slid inward described in described 3rd resilient element urges.

17. braking mechanisms as claimed in claim 13, it is characterised in that: described brake member includes brake lever described in two, two institutes Stating sleeve described in the first elastic component and two, the both sides of described revolving part are respectively arranged with described first inclined-plane, and described in two, sleeve divides The most corresponding with the first inclined-plane described in two, brake member described in two is slidably connected to sleeve described in two respectively, when described revolving part rotates First elastic component described in two promotes brake lever described in two to stretch out the two sides of described wheel seat respectively.

18. braking mechanisms as claimed in claim 1, it is characterised in that: described car underfooting end is provided with described wheel seat and two cars Wheel, wheel described in two is respectively equipped with described brake hub, and described brake member includes stopping described in the first elastic component and two described in two Car bar, described actuator simultaneously drives the first elastic component described in two, with order about brake lever described in two respectively with described in the two of both sides Brake hub engages.

19. braking mechanisms as claimed in claim 1, it is characterised in that: described braking mechanism also includes operating assembly and connection Line, described operating assembly includes that operating parts and locking piece, described operating parts are arranged at the driver of described children trolley, described locking Part is connected to described operating parts, described driver is provided with location division in order to engage with described locking piece, the one of described connecting line End is connected with described operating assembly, and the other end of described connecting line is connected with described actuator, and described operating parts pulls described company The one end making described locking piece after wiring snaps in described location division, and the other end operating described locking piece makes described locking piece move From described location division.

20. braking mechanisms as claimed in claim 19, it is characterised in that: described operating parts is for being set in described driver slidably On sliding sleeve, described locking piece is the clamp hook piece being articulated on described sliding sleeve, described sliding sleeve pull on described connecting line move after institute The one end stating clamp hook piece snaps in described location division, presses described clamp hook piece during the other end of described clamp hook piece and pivots described in disengaging Location division.

21. braking mechanisms as claimed in claim 19, it is characterised in that: described connecting line is arranged in described driver and described car In foot.

22. braking mechanisms as claimed in claim 20, it is characterised in that: the upper end of described sliding sleeve reach out to be provided with stops Car operating portion.

23. braking mechanisms as claimed in claim 20, it is characterised in that: described operating assembly also includes being slideably positioned in described Sliding part in driver, described sliding part fixes with described sliding sleeve, and described sliding part is fixed in one end of described connecting line.

24. braking mechanisms as claimed in claim 20, it is characterised in that: one end of described clamp hook piece have can snap in described fixed Clamping hooked in the portion of position, the other end of described clamp hook piece is provided with a safety lock locking member slidably, described safety lock locking member have to Peaking at described sliding sleeve and limit the top that described clamp hook piece pivots, described safety lock locking member slidably makes described top depart from Described sliding sleeve.

25. braking mechanisms as claimed in claim 19, it is characterised in that: described operating assembly also includes a safety lock locking member, Described safety lock locking member is located at the other end of described locking piece slidably, and described safety lock locking member has and is resisted against described operating parts And limiting the top of described locking piece action, described safety lock locking member slidably makes described top depart from described operating parts.

26. braking mechanisms as claimed in claim 24, it is characterised in that: described operating assembly also includes being arranged at described safety Return springs between locking piece and described clamp hook piece, safety lock locking member described in described return springs pushing tow make described in support Portion is resisted against described sliding sleeve.

27. braking mechanisms as claimed in claim 24, it is characterised in that: described sliding sleeve includes the main part being placed on described driver And fix and the receiving portion of side openings with described main part, described clamp hook piece and described safety lock locking member are arranged at described receiving Portion, described top is resisted against the edge of described accommodation section.

28. 1 kinds of children trolleys, including driver and car foot, described car underfooting end is provided with wheel seat and wheel, solid on described wheel Surely there is brake hub, it is characterised in that: also include the braking mechanism as according to any one of claim 1-27.

29. 1 kinds of children trolleys, including driver and at least two car feet, described in two, car underfooting end is provided with wheel seat and wheel, described Brake hub it is fixed with on wheel, it is characterised in that: also include the braking mechanism as according to any one of claim 1-5, institute State brake assemblies and be arranged at the described wheel seat of car foot described in,

The described wheel seat of another described car foot is provided with auxiliary brake assembly, and described auxiliary brake assembly includes secondary actuator and auxiliary brake Part, described auxiliary brake part includes secondary elastic component and auxiliary brake bar, one end of described secondary actuator and corresponding described wheel seat pivot joint, One end of described auxiliary brake bar is articulated in the described wheel seat of correspondence, and the other end of described auxiliary brake bar is positioned at outside described wheel seat And be provided with the brake rib that can snap in described brake hub, described secondary elastic component be arranged at described secondary actuator and auxiliary brake bar it Between, described children trolley also includes a gearing line, and the described actuator of described brake assemblies is fixed in one end of described gearing line, The other end of described gearing line is fixed on the other end of described secondary actuator, and the other end of described secondary actuator passes through institute during pendulum State the described brake hub that secondary elastic component drives described brake rib to be flapped toward correspondence.

30. 1 kinds of children trolleys, including driver and at least two car feet, described in two, car underfooting end is provided with wheel seat and wheel, described Brake hub it is fixed with on wheel, it is characterised in that: also include interlocking line and stopping as according to any one of claim 10-17 Mechanism of car, described braking mechanism includes two described brake assemblies, and brake assemblies described in two is respectively arranged at car foot described in two Described wheel seat, the two ends of described gearing line are individually fixed in the described revolving part of brake assemblies described in two, wherein rotate described in one Part drives another described revolving part to rotate by described gearing line when rotating.