CN207433592U - A kind of foldable multifunctional trolley - Google Patents

Abstract

The utility model discloses a kind of foldable multifunctional trolley, wheel is arranged on frame-type frame downward, and function accessories are arranged on vehicle frame；Vehicle frame includes humanoid foot support, load-carrying mounting, back rest, handle assembly and connection back, folds rocking arm；Humanoid foot support includes upper end cross-articulation front foot frame together and rear leg；Connection back links together humanoid foot support, load-carrying mounting and back rest；Activity space and the linkage during vehicle frame folding when folding rocking arm to limit the expansion of the vehicle frame of humanoid foot support and load-carrying mounting；Function accessories include manual brake gear, linkage locking draws pin, spring assembly and telescopic lever is unfolded.Its advantage is：Scientific structure is simple, compact-sized, and function is more, use aspect；Telescopic lever is added, can be hauled away after folding；For brake gear with can be operated by single hand, when descending, is more practical；Unfolded state and the equal lockable of folded state；It can Automatic-expanding vehicle frame；Handle can turn to, and operation is more convenient.

Description

A kind of foldable multifunctional trolley

Technical field

The utility model is related to a kind of folding pushchair more particularly to a kind of easy to operate foldable multifunctional trolleys.

Background technology

Trolley is generally used to pickaback carry article instead of the portable of people, during such as airport airplane, with trolley short Distance is carried luggage and handicapped people, mitigates the burden of passenger.Common trolley is complex there are overall structure, more Number is not foldable, and occupied space is big during storage, also not readily portable.

In order to overcome the above problem existing for existing common trolley, utility model people applied before this one it is entitled The utility model patent of " a kind of foldable multifunctional handcart ", Patent No. " CN201720178894.2 ", it discloses one Kind foldable multifunctional handcart, including：Vehicle frame, the vehicle frame include the back of the body and plug in vehicle frame and pedestal vehicle frame, the pedestal vehicle frame The lower end both sides that vehicle frame is inserted in rear end both sides with the back of the body respectively are rotatablely connected；Cycle stand, in the lower end of the cycle stand two Side is respectively equipped with universal wheel, and the lower end both sides rotation connection of vehicle frame is inserted in the upper end both sides of the cycle stand with the back of the body respectively； Wheel vehicle frame, the upper end both sides of the wheel vehicle frame are rotatablely connected respectively with the upper end both sides of the cycle stand, in the vehicle The lower end both sides of wheel vehicle frame are respectively equipped with traveling wheel；Link and connecting plate, institute are respectively equipped in the cycle stand both sides Link one end is stated with being rotatablely connected on the downside of the front end of the pedestal vehicle frame, the centre position of the link and the bicycle Frame is rotatablely connected, and the link other end is rotatablely connected with described connecting plate one end, the connecting plate other end and the vehicle Take turns vehicle frame rotation connection.The lower end both sides of wheel vehicle frame are respectively equipped with brake gear, to emergency stop or slow down the traveling of trolley Speed can ensure security and convenience that trolley uses with this.The end of connecting rod penetrates the cycle stand and shape Into pin, the cotter way with pin cooperation is equipped on the edge of the connecting plate.The upper end both sides of wheel vehicle frame respectively with institute It states the upper end both sides rotation connection of cycle stand and tie point is formed with the place of connection, which is located at pedestal vehicle frame Below centre position, when folding pushchair, is rotated clockwise centered on the tie point, can so increase its stability, and And convenient for the folding of trolley.It is avoided in addition, the trolley after folding can be lockked by lock pin after trolley folding with this Trolley after folding is opened easily.It has the technical effect that the small volume after folding occupies little space, can reach and board a plane Standard.

But the foldable multifunctional handcart is in actual use, inventor has found the trolley, and also there are one A little shortcomings cause use convenient not enough.For example, fold after movement can only be portable walk；Brake gear using in Vehicle is stopped, and can only step on parking with foot in parking and stop to check wheel；Pin used and cotter way are only unfolded just in trolley It locks and keeps its unfolded state, and cannot be locked after folding and keep its folded state；Opened after folding time when opening, it is necessary to It firmly pulls open manually, it is relatively harder.

Utility model content

To solve existing foldable multifunctional trolley there are drawbacks described above, the utility model provides a kind of scientific structure letter Single, foldable multifunctional trolley easy to use.

To achieve the above object, the scheme that the utility model is taken is：

A kind of foldable multifunctional trolley, including frame-type vehicle frame, wheel and function accessories；Wheel is arranged on frame downward, Function accessories are arranged on vehicle frame；It is characterized in that, the vehicle frame includes the humanoid foot support that order is set from down to up, load block Frame, back rest, handle assembly and connection back fold rocking arm；Wherein,

Humanoid foot support, including upper end cross-articulation together be in " people " font front foot frame and rear leg, front foot frame and Rear leg is respectively a pair, is symmetrical set, front foot frame is connected as a single entity equipped with front foot cross bar between the front foot frame of the left and right sides, Rear leg is connected as a single entity equipped with rear foot cross bar between the rear leg of the left and right sides；Wheel includes 2 front-wheels and 2 trailing wheels, preceding Wheel is arranged on the lower end of front foot frame, and trailing wheel is arranged on the lower end of rear leg；The front foot frame upper end of the left and right sides be equipped with one section it is curved The connecting plate of folding is equipped with foot stool cross bar between the connecting plate of the left and right sides；

Back is connected, the L-shaped or bent angle shape, each one piece of left and right that profile falls after being in are symmetrical set, by humanoid foot branch Frame, load-carrying mounting and back rest link together, wherein, it connects the forepart of back and the connecting plate of front foot frame passes through the company of being fixed on Hinge shaft on fishplate bar is rotationally hinged, and connecting plate on the outside, and is connected on back front end in inboard, connection back Side is equipped with limiting groove, and connecting plate side also is provided with matching the limited post of /V with the limiting groove, when load-carrying mounting is unfolded In laid-flat status, limited post is just fallen into limiting groove；

Load-carrying mounting, front end is rotationally hinged with folding rocking arm, and end is with being connected the upper of back thereafter Portion is rotationally hinged, is in laid-flat status when load-carrying mounting is unfolded；

Back rest, its underpart are fixedly connected integrally with being connected the rear portion of back；

Handle assembly is arranged on back rest top, is held for the hand handle for operation during cart；

Rocking arm is folded, when humanoid foot support and load-carrying mounting activity space and vehicle frame folding are limited when being unfolded to vehicle frame Humanoid foot support and load-carrying mounting is driven to link, it includes two sections of rocking arms, is respectively upper rocker arm and lower shake-changing arm, upper rocker arm afterbody and The head of lower shake-changing arm is rotationally hinged, and upper rocker arm head is rotationally hinged on the forepart of load-carrying mounting, upper rocker arm Body do and do rotationally cross-articulation with the body of front foot frame together with, lower shake-changing arm afterbody is rotationally hinged on the body of rear leg On dry；

Function accessories draw pin and telescopic lever including manual brake gear, linkage locking；Telescopic lever is arranged on back rest Back, when vehicle frame is unfolded, the pull rod of telescopic lever downward, during vehicle frame folding, since telescopic lever follows back rest to overturn forward, The pull rod of telescopic lever is upward at this time；Manual brake gear includes a hand brake assembly, a transmission steel wire component and a pair of of system Dynamic component, hand brake assembly are disposed therein on a handle component, and a pair of of brake assemblies are separately positioned on left and right sides trailing wheel correspondence Left and right sides rear leg lower part, brake assemblies and hand brake assembly are driven brake power by being driven steel wire component；Linkage locking is drawn Pin includes spring and draws pin and drawstring, and spring draws the inboard for selling the connecting plate for being located at left and right front foot frame, and drawstring is located at the bullet of left and right sides Between spring draws pin, pin to be drawn to pull open unlock simultaneously the spring of left and right sides, connection back is equipped with spring and draws pin matching pair drawstring The expansion lock hole answered and foldable locking hole, when vehicle frame is unfolded, spring draws pin to inject each component position of vehicle frame in expansion lock hole Put locking, during vehicle frame folding, spring draws pin to inject in foldable locking hole and locks each component locations of vehicle frame.

Being further improved and further illustrating as said program, it is preferable that foregoing function accessories are additionally included in folding The expansion spring assembly that vehicle frame is unfolded automatically after vehicle frame unlock, expansion spring assembly include torsionspring and spring stack；Spring Column is located on the inside of connection back, and torsionspring is fixed on spring stack；One end of torsionspring is arranged on front foot frame and rear leg Hinge shaft on, the other end of torsionspring is arranged on connecting plate and the hinge shaft for connecting back；When vehicle frame folding, back is connected Rotation, torsionspring compresses accumulation of energy, and when vehicle frame unlocks, torsionspring opens release energy energy, and connection back is driven to rotate backward, Vehicle frame is opened.After releasing the locking that linkage locking draws pin after vehicle frame folding, vehicle frame is in the tension force effect of expansion spring assembly Under can Automatic-expanding vehicle frame, need not be unfolded manually, operation it is more convenient.

Being further improved and further illustrating as said program, it is preferable that before the front foot frame of foregoing humanoid foot support Lower section is equipped with the pedal frame forward extended out, and the position that pedal frame is connected with front foot frame is equipped with the extension inserting column of fixed canopy.Footrest Frame shelves both feet for riding vehicle, increases the comfort level of seating.

Being further improved and further illustrating as said program, it is preferable that the front foot frame ratio of foregoing humanoid foot support Rear leg is long, and the angle formed after expansion between front foot frame and rear leg is 30 °~40 °, and front-wheel is universal rolling wheel, and trailing wheel is fixed Way roller, moreover, the diameter of trailing wheel is more than the diameter of front-wheel.Vehicle frame larger space left behind can be so given, is conducive to Cart person walks after vehicle.Meanwhile also car body is allowed to take care of yourself stabilization.

Being further improved and further illustrating as said program, it is preferable that the back interposition of foregoing foot stool cross bar Auxiliary wheel is installed, auxiliary wheel is universal rolling wheel；When vehicle frame folding, auxiliary wheel is as front-wheel and two trailing wheel compositions Three-wheel flatrack bassinet structure.After folding, can be slided as three-fold block, than if desired for several trolleys are concentrated place when, can be with It first slides into a region.

Being further improved and further illustrating as said program, it is preferable that aforesaid frame further includes stow-away arm rest, folding Folded handrail includes handrail item and handrail limit stop post；Handrail afterbody is rotationally hinged on outside in the middle part of back rest；Handrail limits Position bumping post is arranged on back side in the middle part of back rest, and stretches out one section outward by back side in the middle part of back rest, and handrail item is deployed into level During position, handrail limit stop post just shelves, which live handrail tail end and limit it, continues up rotation, and handrail item is made to keep horizontality； When handrail item folds, handrail limit stop post just shelves, which live handrail tail end and limit it, to be continued to rotate backward, and handrail item is made to keep water Level state and back rest overlap condition.

Being further improved and further illustrating as said program, it is preferable that foregoing function accessories further include detachably Ground is fixed on the seat cushion of load-carrying mounting and back rest.

Being further improved and further illustrating as said program, it is preferable that aforementioned seat includes the seat being connected as a single entity Pad and back pad, back pad front end back are equipped with velcro, and back pad middle back is equipped with the adjustment drawstring of adjustment cushion elasticity, cushion It is coated on by velcro and adjustment drawstring on load-carrying mounting；Back pad back is equipped with velcro, and back pad is coated on by velcro On back rest.Convenient disassembly, it is elastic adjustable, it is more humane.

Being further improved and further illustrating as said program, it is preferable that foregoing handle assembly include handle tube, Gloves and 90 degree of right angle rotary joints；Handle tube is fixed on the left and right sides on back rest top by 90 degree of right angle rotary joints； During folding, left and right handle tube is inwardly rotated in opposite directions, handle tube can be concordant with back rest, in use, by handle tube reversely to Outer rotation, handle tube are vertical with back rest, you can open and use.It so can be to the sky that operation is further expanded behind vehicle frame Between, being conducive to cart, person walks after vehicle, and foot is avoided to step on frame downward.

Being further improved and further illustrating as said program, it is preferable that foregoing brake assemblies include the brake of inverted L-shaped Vehicle piece, 2 resetting springs and 2 Wire mounts that brake block is resetted；Be driven steel wire component include shackle line and Steel wire casing；Brake block across mode be arranged on above trailing wheel, the relatively low end of brake block is rotationally hinged on trailing wheel branch The outer one side in back of frame；The relatively low high end of brake block is symmetrically oppositely arranged, and the relatively low high end of brake block is equipped with Wire mount；The brake block of left and right brake assemblies is cascaded by being cased with the linkage steel wire rope of steel wire casing, this 2 brakes Resetting spring is cased on steel wire rope between vehicle piece, which is compression reseting spring；The brake block of left brake assemblies exists Hinged place is also cased with the resetting spring resetted, which is reset torsionspring；Wherein, it is driven the steel of steel wire component Silk braid pipe is fixed on the Wire mount of the brake block of left brake assemblies, and is driven the shackle line of steel wire component from outside It penetrates Wire mount and is connected with linkage steel wire rope；Brake block is made of stainless steel material, brake block brake when and trailing wheel The part of contact is equipped with and the matched arc notch of trailing wheel radial shape.If in use, with one-handed performance manual control brake gear, It can brake simultaneously to 2 trailing wheels, while liberating a hand, also prevent descending is difficult to control to slide.

From the foregoing, it will be observed that compared with the prior art, the utility model has the following advantages：Scientific structure is simple, and structure is tight It gathers, function is more, use aspect；Telescopic lever is added, pulls out telescopic lever after folding, it is possible to as traveller draws case It hauls away；Brake gear is improved, with can be operated by single hand hand brake assembly, while is braked to 2 trailing wheels, during descending more It is practical；Unfolded state can not only be locked, moreover it is possible to lock folded state, prevent that car exhibition is unfolded suddenly after folding；After vehicle frame folding After unlocking can Automatic-expanding vehicle frame, need not be unfolded manually；Handle can turn to, and operation is more convenient.It is suitble to take Aircraft is carried when the vehicles are gone on a journey or are travelled, and is facilitated and is looked after handicapped people or luggage.

Description of the drawings

Fig. 1 is the stereogram of the vehicle frame of the utility model.

Fig. 2 is the stereogram of the foldable multifunctional trolley of Fig. 1.

Fig. 3 is the side view of Fig. 1.

Fig. 4 is enlarged drawing at the A of Fig. 3.

Fig. 5 is the rearview of Fig. 3.

Fig. 6 is folded state schematic diagram when not lockking of Fig. 3.

Fig. 7 is the stereoscopic schematic diagram of seat cushion.

Fig. 8 is the stereogram of another embodiment of Fig. 1.

The view when handle assembly that Fig. 9 is Fig. 8 is opened.

Drawing reference numeral explanation：1- vehicle frames, 2- wheels, 21- front-wheels, 22- trailing wheels；3- auxiliary wheels, 4- torsionsprings, 5- Manual brake gear, 51- brake blocks, 52- Wire mounts, 53- shackle lines, 54- steel wire casings, 55- linkage steel wire ropes, 56- compression reseting springs, 57- reset torsionspring, 58- hand brake assemblies, 59- arc notch；6- telescopic levers, 7- blocking locks It is fixed to draw pin, 8- drawstrings, 9- seat cushions, 91- cushions, 92- back pads, 93- velcro, 94- adjustment drawstrings 8；10- extends inserting column, 11- Humanoid foot support, 111- front foot frames, 112- rear legs, 114- front foot cross bars, 115- rear foot cross bars, 116- foot stool cross bars, 117- Connecting plate, 118- limited posts, 119- hinge shafts；12- load-carrying mountings, 13- back rests, 14- folding rocking arms, 15- handle assemblies, 151- handle tubes, 152- handle sleeves, 153-90 degree right angle rotary joint；16- connection backs, 161- limiting grooves, 162- springs Column, 163- expansion lock holes, 164- foldable lockings hole；17- stow-away arm rests, 171- handrail items, 172- handrail limit stop posts, 18- Pedal frame.

Specific embodiment

Below in conjunction with the accompanying drawings and preferred embodiment, the utility model and its advantageous effects are carried out further detailed It describes in detail bright.

Embodiment 1：

Referring to Fig. 1~Fig. 7, foldable multifunctional trolley includes frame-type vehicle frame 1, wheel 2 and function accessories；Wheel 2 is set In 1 lower part of vehicle frame, function accessories are arranged on vehicle frame 1；It is characterized in that, the vehicle frame 1 includes the people that order is set from down to up Shape foot support 11, load-carrying mounting 12, back rest 13, rear foot cross bar 15 and connection back 16 fold rocking arm 14；Wherein,

Humanoid foot support 11, including upper end cross-articulation together in the front foot frame 111 of " people " font and rear leg 112, Front foot frame 111 and rear leg 112 are respectively a pair, are symmetrical set, it is horizontal that front foot is equipped between the front foot frame 111 of the left and right sides Front foot frame 111 is connected as a single entity by bar 114, connects rear leg 112 equipped with rear foot cross bar 115 between the rear leg 112 of the left and right sides It is integrated；Wheel 2 includes 2 front-wheels 21 and 2 trailing wheels 22, and front-wheel 21 is arranged on the lower end of front foot frame 111, and trailing wheel 22 is set In the lower end of rear leg 112；111 upper end of front foot frame of the left and right sides is equipped with the connecting plate 117 of one section of bending, the left and right sides Connecting plate 117 between be equipped with foot stool cross bar 116；

Back 16 is connected, the L-shaped or bent angle shape, each one piece of left and right that profile falls after being in are symmetrical set, by humanoid foot Stent 11, load-carrying mounting 12 and back rest 13 link together, wherein, connect the forepart of back 16 and the connection of front foot frame 111 Plate 117 is rotationally hinged by the hinge shaft 119 being fixed on connecting plate 117, and connecting plate 117 is in inboard, connection waist Plate 16 on the outside, and connects and limiting groove 161 is equipped on the upside of 16 front end of back, and 117 side of connecting plate also is provided with and the /V Groove 161 matches the limited post 118 of /V, is in laid-flat status when load-carrying mounting 12 be unfolded, and limited post 118 just falls into /V In groove 161；

Load-carrying mounting 12, front end is rotationally hinged with folding rocking arm 14, and end is with being connected back thereafter 16 top is rotationally hinged, is in laid-flat status when load-carrying mounting 12 is unfolded；

Back rest 13, its underpart are fixedly connected integrally with being connected the rear portion of back 16；

Rear foot cross bar 15 is arranged on 13 top of back rest, is held for the hand handle for operation during cart；

Rocking arm 14 is folded, humanoid foot support 11 and 12 activity space of load-carrying mounting and vehicle frame are limited when being unfolded to vehicle frame 1 1 drives humanoid foot support 11 and load-carrying mounting 12 to link when folding, it includes two sections of rocking arms, respectively upper rocker arm and lower shake-changing arm, The head of upper rocker arm afterbody and lower shake-changing arm is rotationally hinged, and upper rocker arm head is rotationally hinged on load-carrying mounting 12 Forepart, together with the body of upper rocker arm is done and does rotationally cross-articulation with the body of front foot frame 111, lower shake-changing arm afterbody is rotationally The body for being hinged on rear leg 112 is done；

Function accessories draw pin 7 and telescopic lever 6 including manual brake gear 5, linkage locking；Telescopic lever 6, which is arranged on, to be leaned on 13 back of backrest, vehicle frame 1 be unfolded when, the pull rod of telescopic lever 6 downward, vehicle frame 1 fold when, since telescopic lever 6 follows backrest Frame 13 is overturn forward, and the pull rod of telescopic lever 6 is upward at this time；Manual brake gear 5 includes 58, biographies of a hand brake assembly Dynamic steel wire component and a pair of of brake assemblies, hand brake assembly 58 are disposed therein on a rear foot cross bar 15, a pair of of brake assemblies point 22 corresponding 112 lower part of left and right sides rear leg of left and right sides trailing wheel is not arranged on, and brake assemblies and hand brake assembly 58 are by being driven steel Silk component transmission brake power；Linkage locking draws pin 7 to include spring and draws pin and drawstring 8, and spring draws pin to be located at left and right front foot frame 111 Connecting plate 117 inboard, drawstring 8 be located at left and right sides spring draw pin between, drawstring 8 is drawing pin same on the spring of left and right sides Shi Lakai is unlocked, and connection back 16 is equipped with spring and draws the corresponding expansion lock hole 163 of pin matching and foldable locking hole 164, vehicle frame During 1 expansion, spring draws pin to inject in expansion lock hole 163 and locks 1 each component locations of vehicle frame, and when vehicle frame 1 folds, spring draws pin It injects in foldable locking hole 164 and locks 1 each component locations of vehicle frame.

For manual brake gear 5, it is necessary to when braking, such as descending or stop braking when, only need to be with a hand by parking brake group Part 58 grips, and slightly firmly can drive a pair of of brake assemblies by being driven steel wire component while two trailing wheels 22 are braked, Two hands need not be used, it is not required that foot helps, very easy to use.

For telescopic lever 6, after vehicle frame 1 folds, telescopic lever 6 is overturn upwards with back rest 13, at this time by telescopic lever 6 Pull rod pull out, you can hauled away as luggage case, relatively existing trolley, use is more convenient.Telescopic lever 6 can be Common trunk draws that telescopic lever used in case.

Pin 7 is drawn for linkage locking, the vehicle frame 1 no matter being unfolded is in the vehicle frame 1 of folded state, when needing to change shape During state, operation stay cord 8 is first passed through, i.e., is pulled up drawstring 8, drives spring that pin is drawn to be moved toward one another to 1 inside of vehicle frame, spring is drawn The plunger of pin departs from expansion lock hole 163 or foldable locking hole 164, and the left and right sides unlocks shape shape simultaneously, could be by vehicle frame 1 Expansion folds.

Preferably, function accessories are additionally included in the expansion spring assembly that vehicle frame 1 is unfolded automatically after folding stand 1 unlocks, Spring assembly, which is unfolded, includes torsionspring 4 and spring stack 162；Spring stack 162 is located at 16 inside of connection back, and torsionspring 4 is solid It is scheduled on spring stack 162；One end of torsionspring 4 is arranged on the hinge shaft 119 of front foot frame 111 and rear leg 112, reverses bullet The other end of spring 4 is arranged on connecting plate 117 and the hinge shaft 119 for connecting back 16；When vehicle frame 1 folds, 16 turns of back is connected It moves, torsionspring 4 compresses accumulation of energy, and when vehicle frame 1 unlocks, torsionspring 4 opens release energy energy, drives connection back 16 reversed It rotates, vehicle frame 1 is opened.

Preferably, 111 front lower place of front foot frame of humanoid foot support 11 is equipped with the pedal frame 18 forward extended out, 18 He of pedal frame The position that front foot frame 111 connects is equipped with the extension inserting column 10 of fixed canopy.The front foot frame 111 of humanoid foot support 11 compares rear leg 112 length, the angle formed after expansion between front foot frame 111 and rear leg 112 is 30 °~40 °, and front-wheel 21 is universal rolling wheel, after Wheel 22 is orientation idler wheel, moreover, the diameter of trailing wheel 22 is more than the diameter of front-wheel 21.The back interposition of foot stool cross bar 116 installs There is auxiliary wheel 3, auxiliary wheel 3 is universal rolling wheel；When vehicle frame 1 folds, auxiliary wheel 3 is used as front-wheel 21 and two trailing wheels 22 Form three-wheel flatrack bassinet structure.

Stow-away arm rest 17 is further included in order to take people's vehicle frame 1, stow-away arm rest 17 includes handrail item 171 and handrail limit stop post 172；171 afterbody of handrail item is rotationally hinged on 13 middle part outside of back rest；Handrail limit stop post 172 is arranged on back rest 13 Middle part back side, and one section, when handrail item 171 is deployed into horizontal level is stretched out outward by 13 middle part back side of back rest, handrail limit Bumping post 172 just shelves in position live 171 tail end of handrail item and limit it to continue up rotations, make the holding horizontality of handrail item 171；Handrail When item 171 folds, the just shelves of handrail limit stop post 172, which live 171 tail end of handrail item and limit it, to be continued to rotate backward, and makes handrail item 171 keep horizontality and 13 overlap condition of back rest.

In addition, function accessories further include the seat cushion 9 for being removably attached to load-carrying mounting 12 and back rest 13.Seat cushion 9 wraps The cushion 91 being connected as a single entity and back pad 92 are included, 92 front end back of back pad is equipped with velcro 93, and 92 middle back of back pad is equipped with adjustment The adjustment drawstring 94 of 91 elasticity of cushion, cushion 91 are coated on by velcro 93 and adjustment drawstring 94 on load-carrying mounting 12；The back of the body 92 backs are padded equipped with velcro 93, back pad 92 is coated on by velcro 93 on back rest 13.

Preferably, brake assemblies include the brake block 51 of inverted L-shaped, 2 resetting springs and 2 that brake block 51 is resetted A Wire mount 52；Being driven steel wire component includes shackle line 53 and steel wire casing 54；Brake block 51 across mode set It puts above trailing wheel 22, the relatively low end of brake block 51 is rotationally hinged on the outer one side in back of 22 stent of trailing wheel；Brake The relatively low high end of piece 51 is symmetrically oppositely arranged, and the relatively low high end of brake block 51 is equipped with Wire mount 52；Left and right The brake block 51 of brake assemblies is cascaded by being cased with the linkage steel wire rope 55 of steel wire casing 54,2 brake blocks 51 it Between be cased with resetting spring on steel wire rope, which is compression reseting spring 56；The brake block 51 of left brake assemblies is being cut with scissors The place of connecing also is cased with the resetting spring resetted, which is reset torsionspring 57；Wherein, it is driven the steel of steel wire component Silk braid pipe 54 is fixed on the Wire mount 52 of the brake block 51 of left brake assemblies, and is driven the shackle line of steel wire component 53 penetrate Wire mount 52 from outside and are connected with linkage steel wire rope 55；Brake block 51 is made of stainless steel material, brake block 51 parts contacted in brake with trailing wheel 22 are equipped with and the matched arc notch 59 of 22 radial shape of trailing wheel.Need skidding When, hand brake assembly 58 need to only be gripped with a hand, slightly firmly can drive a pair of of brake block 51 by being driven steel wire component It links inwardly downward simultaneously, trailing wheel 22 is pushed down by the arc notch 59 of brake block 51 above two trailing wheels 22 and is braked.When When unclamping hand brake assembly 58, under the action of resetting spring, that is, compression reseting spring 56 and reset torsionspring 57, left and right two panels Brake block 51 is outwards rotated up, and arc notch 59 and the trailing wheel 22 of brake block 51 depart from, and trailing wheel 22 affranchises rotation.

Embodiment 2：

Referring to Fig. 8~Fig. 9, the present embodiment further increases functional component on the basis of embodiment 1, specifically, the rear foot Cross bar 15 includes handle tube, handle sleeve 152 and 90 degree of right angle rotary joints 153；Handle tube passes through 90 degree of right angle rotary joints 153 are fixed on the left and right sides on 13 top of back rest；During folding, left and right handle tube is inwardly rotated in opposite directions, handle tube can be with Back rest 13 is concordant, in use, handle tube is reversely outwards rotated, handle tube is vertical with back rest 13, you can opens and uses.

Book and specific embodiment do not form any restrictions to the utility model according to the above description, and the utility model is not Specific embodiment disclosed and described above is confined to, to some modification and variation of the utility model, it should also fall into this In the scope of the claims of utility model.

Claims (10)

1. a kind of foldable multifunctional trolley, including frame-type vehicle frame, wheel and function accessories；Wheel is arranged on frame downward, work( Energy attachment is arranged on vehicle frame；It is characterized in that, the vehicle frame includes the humanoid foot support that order is set from down to up, load block Frame, back rest, handle assembly and connection back fold rocking arm；Wherein,

Humanoid foot support, is in the front foot frame and rear leg of " people " font together including upper end cross-articulation, front foot frame and the rear foot Frame is respectively a pair, is symmetrical set, front foot frame is connected as a single entity equipped with front foot cross bar between the front foot frame of the left and right sides, left and right Rear leg is connected as a single entity equipped with rear foot cross bar between the rear leg of both sides；Wheel includes 2 front-wheels and 2 trailing wheels, front-wheel are set It puts in the lower end of front foot frame, trailing wheel is arranged on the lower end of rear leg；The front foot frame upper end of the left and right sides be equipped with one section bending Connecting plate is equipped with foot stool cross bar between the connecting plate of the left and right sides；

Connect back, profile be in after fall L-shaped or bent angle shape, each one piece of left and right be symmetrical set, by humanoid foot support, Load-carrying mounting and back rest link together, wherein, the forepart of back and the connecting plate of front foot frame are connected by being fixed on connection Hinge shaft on plate is rotationally hinged, and connecting plate on the outside, and is connected on the upside of back front end in inboard, connection back Equipped with limiting groove, connecting plate side also is provided with matching the limited post of /V with the limiting groove, is in when load-carrying mounting is unfolded Laid-flat status, limited post are just fallen into limiting groove；

Load-carrying mounting, front end is rotationally hinged with folding rocking arm, and end can with being connected the top of back thereafter It is rotationally hinged, it is in laid-flat status when load-carrying mounting is unfolded；

Back rest, its underpart are fixedly connected integrally with being connected the rear portion of back；

Handle assembly is arranged on back rest top, is held for the hand handle for operation during cart；

Rocking arm is folded, is driven when humanoid foot support and load-carrying mounting activity space and vehicle frame folding are limited when being unfolded to vehicle frame Humanoid foot support and the linkage of load-carrying mounting, it includes two sections of rocking arms, is respectively upper rocker arm and lower shake-changing arm, and upper rocker arm afterbody shakes under The head of arm is rotationally hinged, and upper rocker arm head is rotationally hinged on the forepart of load-carrying mounting, the body of upper rocker arm It does together with doing rotationally cross-articulation with the body of front foot frame, the body that lower shake-changing arm afterbody is rotationally hinged on rear leg is done On；

Function accessories draw pin and telescopic lever including manual brake gear, linkage locking；Telescopic lever is arranged on the back rest back of the body Portion, when vehicle frame is unfolded, the pull rod of telescopic lever downward, during vehicle frame folding, since telescopic lever follows back rest to overturn forward, this When telescopic lever pull rod upward；Manual brake gear includes a hand brake assembly, a transmission steel wire component and a pair of of braking Component, hand brake assembly are disposed therein on a handle component, and it is corresponding that a pair of of brake assemblies are separately positioned on left and right sides trailing wheel Left and right sides rear leg lower part, brake assemblies and hand brake assembly are driven brake power by being driven steel wire component；Linkage locking draws pin Pin and drawstring are drawn including spring, spring draws the inboard for selling the connecting plate for being located at left and right front foot frame, and drawstring is located at the spring of left and right sides Between drawing pin, pin to be drawn to pull open unlock simultaneously the spring of left and right sides, connection back is equipped with spring and pin matching is drawn to correspond to drawstring Expansion lock hole and foldable locking hole, when vehicle frame is unfolded, spring draws pin to inject each component locations of vehicle frame in expansion lock hole Locking, during vehicle frame folding, spring draws pin to inject in foldable locking hole and locks each component locations of vehicle frame.

2. foldable multifunctional trolley as described in claim 1, it is characterized in that：The function accessories are additionally included in folding stand The expansion spring assembly that vehicle frame is unfolded automatically after unlock, expansion spring assembly include torsionspring and spring stack；Spring stack is set On the inside of connection back, torsionspring is fixed on spring stack；One end of torsionspring is arranged on front foot frame and the hinge of rear leg On axis, the other end of torsionspring is arranged on connecting plate and the hinge shaft for connecting back；When vehicle frame folding, connection back turns It moves, torsionspring compresses accumulation of energy, and when vehicle frame unlocks, torsionspring opens release energy energy, and connection back is driven to rotate backward, will Vehicle frame is opened.

3. foldable multifunctional trolley as claimed in claim 1 or 2, it is characterized in that：Before the front foot frame of the humanoid foot support Lower section is equipped with the pedal frame forward extended out, and the position that pedal frame is connected with front foot frame is equipped with the extension inserting column of fixed canopy.

4. foldable multifunctional trolley as claimed in claim 3, it is characterized in that：The front foot frame of the humanoid foot support compares the rear foot Frame is long, and the angle formed after expansion between front foot frame and rear leg is 30 ° ~ 40 °, and front-wheel is universal rolling wheel, and trailing wheel rolls for orientation Wheel, moreover, the diameter of trailing wheel is more than the diameter of front-wheel.

5. foldable multifunctional trolley as claimed in claim 4, it is characterized in that：The back interposition of the foot stool cross bar installs There is auxiliary wheel, auxiliary wheel is universal rolling wheel；When vehicle frame folding, auxiliary wheel is as front-wheel and two trailing wheel composition three-wheels Flatrack bassinet structure.

6. foldable multifunctional trolley as claimed in claim 5, it is characterized in that：The vehicle frame further includes stow-away arm rest, folds Handrail includes handrail item and handrail limit stop post；Handrail afterbody is rotationally hinged on outside in the middle part of back rest；Handrail /V Bumping post is arranged on back side in the middle part of back rest, and stretches out one section outward by back side in the middle part of back rest, and handrail item is deployed into horizontal position When putting, handrail limit stop post just shelves, which live handrail tail end and limit it, continues up rotation, and handrail item is made to keep horizontality；It helps When hand item folds, handrail limit stop post just shelves, which live handrail tail end and limit it, to be continued to rotate backward, and makes the holding of handrail item horizontal State and back rest overlap condition.

7. foldable multifunctional trolley as claimed in claim 6, it is characterized in that：The function accessories further include removably solid It is scheduled on the seat cushion of load-carrying mounting and back rest.

8. foldable multifunctional trolley as claimed in claim 7, it is characterized in that：The seat cushion include the cushion that is connected as a single entity and Back pad, back pad front end back are equipped with velcro, and back pad middle back is equipped with the adjustment drawstring of adjustment cushion elasticity, and cushion passes through Velcro and adjustment drawstring are coated on load-carrying mounting；Back pad back is equipped with velcro, and back pad is coated on backrest by velcro On frame.

9. foldable multifunctional trolley as claimed in claim 8, it is characterized in that：The handle assembly includes handle tube, handle Set and 90 degree of right angle rotary joints；Handle tube is fixed on the left and right sides on back rest top by 90 degree of right angle rotary joints；Folding When folded, left and right handle tube is inwardly rotated in opposite directions, handle tube can be concordant with back rest, in use, handle tube is reversely outside Rotation, handle tube are vertical with back rest, you can open and use.

10. foldable multifunctional trolley as claimed in claim 9, it is characterized in that：The brake assemblies include the brake of inverted L-shaped Piece, 2 resetting springs and 2 Wire mounts that brake block is resetted；Being driven steel wire component includes shackle line and steel Silk braid pipe；Brake block across mode be arranged on above trailing wheel, the relatively low end of brake block is rotationally hinged on rear wheel support The outer one side in back；The relatively low high end of brake block is symmetrically oppositely arranged, and the relatively low high end of brake block is equipped with steel Silk fixing piece；The brake block of left and right brake assemblies is cascaded by being cased with the linkage steel wire rope of steel wire casing, this 2 brakes Resetting spring is cased on steel wire rope between piece, which is compression reseting spring；The brake block of left brake assemblies is being cut with scissors The place of connecing also is cased with the resetting spring resetted, which is reset torsionspring；Wherein, it is driven the steel wire of steel wire component Casing is fixed on the Wire mount of the brake block of left brake assemblies, and the shackle line for being driven steel wire component is worn from outside Enter Wire mount and be connected with linkage steel wire rope；Brake block is made of stainless steel material, and brake block connects in brake with trailing wheel Tactile part is equipped with and the matched arc notch of trailing wheel radial shape.