CN106476874B - A kind of double leval jib retaining mechanism and its folding pushchair using the mechanism - Google Patents
A kind of double leval jib retaining mechanism and its folding pushchair using the mechanism Download PDFInfo
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- CN106476874B CN106476874B CN201511001130.8A CN201511001130A CN106476874B CN 106476874 B CN106476874 B CN 106476874B CN 201511001130 A CN201511001130 A CN 201511001130A CN 106476874 B CN106476874 B CN 106476874B
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- double leval
- leval jib
- connecting rod
- folding
- link
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- 230000007246 mechanism Effects 0.000 title claims abstract description 68
- 230000000712 assembly Effects 0.000 claims abstract description 16
- 238000000429 assembly Methods 0.000 claims abstract description 16
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- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
- B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
- B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
- B62B2205/06—Foldable with a scissor-like mechanism
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- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
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Abstract
The present invention provides the folding pushchair of a kind of double leval jib retaining mechanism and its application mechanism, which includes two link assemblies and middle part double leval jib component；The trolley includes car body, and the car body includes folding stand and wheel, and the folding stand is made up of two symmetrically arranged double leval jib retaining mechanisms strut connection；The folding stand of unfolded state forms the vehicle storehouse that can load article, and the covering for roofs for protecting article in the vehicle storehouse is arranged in the top in the vehicle storehouse.Retaining mechanism provided by the invention locks three groups of double leval jib components by one group of two link assembly, forms stable truss structure, which can realize the full linkage between rod piece, effectively realizes retaining mechanism fast folding and expansion；In addition, trolley provided by the invention can not only realize the function of hand push, and floor space is small after folding, and entire car body can achieve the effect that easy to use, linkage, light and handy, stabilization, highly practical.
Description
Technical field
The present invention relates to mechanical interlock mechanism technical field, more particularly to a kind of double leval jib retaining mechanism and its apply the machine
The folding pushchair of structure.
Background technology
It is well known that link mechanism is widely used in various mechanical equipments, such as apparatus, articles for use etc., pass through the connecting rod
Mechanism reaches predetermined action and purpose, is specifically for use in folding thing to sit on, bedding and outdoor furniture.
Currently, link mechanism has been applied in various trolleys, although existing trolley is by wheel, bottom
Disk, fixed fence and pushing hands composition, but the connection of its structure is different, then and the place of its effect realized and application is also different.It is existing
Some trolleys are roughly divided into two classes, and one kind is that Collapsible cart, this kind of trolley are not mostly used for transporting sundries or shopping
Deng use；Another kind of is folding trolley, and most of is as perambulator for children's ride-on, although this trolley can be with
It folds, but most of is building block system or half modular construction, it is not only complicated, and also purposes is relatively simple, in addition, this
After folding trolley folds, not only volume is bigger than normal, inconvenient to carry, and it is bigger than normal to conduct oneself with dignity, and center of gravity is higher, security performance
Difference, meanwhile, this trolley folding process can not achieve full linkage, open and fold very inconvenient, poor practicability.
Invention content
Folding is can not achieve in order to solve trolley in the prior art, and there is also structures to answer even if can fold
Miscellaneous, purposes is single, in addition, after existing trolley folds, not only volume is bigger than normal, inconvenient to carry, meanwhile, trolley is folding
The problems such as process can not achieve full linkage, opens and folding is very inconvenient, poor practicability, safety is low, the present invention provides
A kind of double leval jib retaining mechanism and its folding pushchair using the mechanism.
Specific technical solution of the present invention is as follows：
The present invention provides a kind of double leval jib retaining mechanisms, including two link assemblies and middle part double leval jib component；
The middle part double leval jib component is that the first connecting rod being symmetrical set by two and two are symmetrical set
The diamond structure that second connecting rod hingedly forms, the top of two first connecting rods and the bottom end of two second connecting rods are logical
It is hinged to cross hinge；Two link assembly is hingedly made of two isometric third connecting rods；
The top of two second connecting rods is hinged fourth link by hinge, and the fourth link passes through first crossbar
It is hinged by the hinge with the top of the first connecting rod；The first connecting rod, the second connecting rod, the first crossbar and
The fourth link hingedly forms the end double leval jib component for being symmetricly set on the middle part double leval jib component both sides；Described two connect
Hinge joint in bar assembly is located on the center line of the middle part double leval jib component, and the both ends of two link assembly are respectively with two
The bottom end of first connecting rod described in root is hinged.
Further, the hinge joint position in the middle part of two link assembly is less than the hinged point of itself and the first connecting rod
It sets.
Further, wherein a second connecting rod bottom is connected with gag lever post, the hinge in the middle part of two link assembly
Contact is connected on the gag lever post.
Preferably, two first connecting rod tops are hinged with supporting rod by the hinge.
The present invention also provides a kind of folding pushchair using the double leval jib retaining mechanism, including car body, the vehicles
Body includes that can be unfolded or the folding stand that folds and the wheel in the folding stand bottom be arranged, and the wheel includes front truck
Wheel and rear wheel, the folding stand are made up of two symmetrically arranged double leval jib retaining mechanisms strut connection, two institutes
Two link assembly stated in double leval jib retaining mechanism connects to form doubling chassis by strut, two double leval jib lockings
The first crossbar end in mechanism connects to form cross tube component by the strut；
The folding stand of unfolded state forms the vehicle storehouse that can load article, is placed with and the vehicle in the vehicle storehouse
The covering for roofs for protecting article in the vehicle storehouse is arranged in the rumble seat that body is used cooperatively, the top in the vehicle storehouse.
Further, in the double leval jib retaining mechanism being arranged symmetrically, it is located at the 4th company of the body rear end
Bar top extends, and the extension end of the fourth link connects the push rod for pushing the car body；The car body is in folding
When overlapping state, the push rod bottom end support is in the horizontal plane.
Further, in the double leval jib retaining mechanism being arranged symmetrically, the bottom end of the first connecting rod extends, and institute
The extension end for stating first connecting rod is connected by connecting rod, is connected respectively positioned at the both ends of the connecting rod of the body rear end
Connect the rear wheel；Before the both ends of the connecting rod of the car body front end are used to connect by the connection of vertical shaft housing respectively
The vertical shaft component of wheel；
The vertical shaft component includes vertical shaft, wheel fork and vertical shaft lock, is plugged in the vertical shaft housing at the top of the vertical shaft, institute
It states vertical shaft bottom to connect with the wheel fork, the wheel fork is arranged for installing the front vehicle wheel, the vertical shaft lock in the vertical shaft
Jacket bottom is simultaneously connect with the vertical shaft.
Further, the cross tube component is the rectangular frame being made of two U-shaped sub- frames, is leaned on the sub- frame
The one end being closely open is connected with the hinged place of two first connecting rods, one end far from opening on the sub- frame and described the
Double leval jib is rotatablely connected；Pocket is lifted on the rectangular frame, the pocket bottom is placed on the doubling chassis.
Further, the covering for roofs is the desktop being made of two pieces of jigsaw, is connected close to described first on the jigsaw
One end of bar and the hinge on the first connecting rod top are hinged, and two fixations are symmetrically arranged between two pieces of jigsaw
The both ends of bar, two fixed links are fixedly connected with the hinge on two first connecting rod tops respectively, described in two
Semicircle orifice, through-hole of two semicircle orifice splicing compositions for grafting umbrella are symmetrically provided in the middle part of fixed link.
Further, the umbrella stem bottom end of the umbrella passes through the through-hole of the covering for roofs, and the umbrella stem bottom end connects
Support element for being stably fixed on ground, the umbrella stem top are equipped with sky shade, and sky shade bottom margin side is equipped with
The puggaree for tilting sunlight is blocked, the sky shade bottom margin other side is equipped with the umbrella valve fringing for providing and additionally covering.
Beneficial effects of the present invention are as follows：Double leval jib retaining mechanism provided by the invention is locked by one group of two link assembly
Three groups of double leval jib components, to formed one group of stabilization and can be as the truss structure of braced frame, which can not only
It realizes the full linkage between rod piece, effectively realizes retaining mechanism fast folding and expansion, and the structural support intensity is big, safety
Property it is high；In addition, the present invention is applied to retaining mechanism as folding stand in trolley, which can not only realize hand push
Function, and car body fold after floor space it is small, and entire car body can reach easy to use, linkage, light and handy, making of stablizing
With effect, the folding stand safety after expansion is higher, can be widely applied to camp, garden, seabeach, the outdoor locations such as square.
Description of the drawings
Fig. 1 is a kind of unfolding state figure of double leval jib retaining mechanism described in embodiment 1；
Fig. 2 is a kind of folded state diagram of double leval jib retaining mechanism described in embodiment 1；
Fig. 3 is a kind of frame construction drawing of double leval jib retaining mechanism described in embodiment 2；
Fig. 4 is the enlarged drawing of A in Fig. 3；
Fig. 5 is a kind of structural schematic diagram of folding pushchair using the double leval jib retaining mechanism described in embodiment 3；
Fig. 6 starts for covering for roofs in a kind of folding pushchair using the double leval jib retaining mechanism described in embodiment 4
Structural schematic diagram；
Fig. 7 spreads out for covering for roofs in a kind of folding pushchair using the double leval jib retaining mechanism described in embodiment 4
Structural schematic diagram afterwards；
Fig. 8 be embodiment 4 described in a kind of folding pushchair using the double leval jib retaining mechanism in install umbrella knot
Structure schematic diagram；
Fig. 9 is that a kind of folded state of folding pushchair using the double leval jib retaining mechanism described in embodiment 4 shows
It is intended to；
Figure 10 is the enlarged drawing of B in Fig. 9；
Figure 11 is showing after a kind of folding of folding pushchair using the double leval jib retaining mechanism described in embodiment 4
It is intended to.
Wherein：1, first connecting rod；2, second connecting rod；3, third connecting rod；4, fourth link；5, first crossbar；6, gag lever post；
7, supporting rod；8, car body；9, folding stand；10, wheel；11, strut；12, doubling chassis；13, cross tube component；14, roof
Lid；15, push rod；16, connecting rod；17, vertical shaft housing；18, vertical shaft；19, wheel fork；20, vertical shaft is locked；21, pocket；22, through-hole；
23, umbrella；24, umbrella stem；25, support element；26, sky shade；27, puggaree；28, umbrella valve fringing；29, fixed link.
Specific implementation mode
Invention is further described in detail with following embodiment below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figure 1, the embodiment of the present invention 1 provides a kind of double leval jib retaining mechanism, the double leval jib retaining mechanism is main
For describing to lock three groups of double leval jib components mechanisms using one group of two link assembly mechanism in the technical program, can join to be formed
The dynamic component truss folded and open.
The double leval jib retaining mechanism includes two link assemblies and middle part double leval jib component；
The middle part double leval jib component is to be symmetrical set by two first connecting rods being symmetrical set 1 and two
The diamond structure that second connecting rod 2 hingedly forms, the bottom end on the top and two second connecting rods 2 of two first connecting rods 1
It is hinged by hinge；Two link assembly is hingedly made of two isometric third connecting rods 3；Two link assembly be by
Two isometric third connecting rods 3 form, when two link assemblies lock 3 groups of double leval jib components, at this point, two link assemblies are in water
Prosposition is set, connecting rod total length longest.
The top of two second connecting rods 2 is hinged fourth link 4 by hinge, and the fourth link 4 passes through first
Cross bar 5 and the top of the first connecting rod 1 are hinged by the hinge；The first connecting rod 1, the second connecting rod 2, described
One cross bar 5 and the fourth link 4 hingedly form the end double leval jib group for being symmetricly set on the middle part double leval jib component both sides
Part；Hinge joint on two link assembly is located on the center line of the middle part double leval jib component, two link assembly
Both ends are hinged with the bottom end of two first connecting rods 1 respectively.
Since the retaining mechanism provided in the present invention has the architectural characteristics such as foldable, stability is high, safety is high, so
Retaining mechanism provided by the invention can be used as the every field of truss structure application, such as object support pedestal, braced frame, vehicle
Other mechanisms that need to fold such as body frame.
Three groups of double leval jib components that the present invention designs are locked by one group of two link assembly, form a kind of truss knot of stabilization
Structure, at the same the present invention fold when, it can be achieved that fast folding, not only occupied space is smaller for the truss structure after folding, Er Qiebian
It is highly practical in transport.
As shown in Fig. 2, briefly, if we set in the present invention, the hinge joints of two first connecting rods 1 is A, two
The hinge joint of second connecting rod 2 described in root is B, being hinged between symmetrically arranged first connecting rod 1 and symmetrically arranged second connecting rod 2
Point is respectively C and D, the hinged point E and F of two link assemblies and symmetrically arranged two first connecting rods 1, two link assembly
In the hinge joints of two third connecting rods 3 be G, the hinge joint point of the fourth link 4 of both sides and the symmetrically arranged second connecting rod 2
Not Wei H and I, the other end of one end of the first crossbar 5 and the fourth link 4 is hinged, and hinge joint is J and K, described first
The hinge joint A of the other end of cross bar 5 and two first connecting rods 1 is hinged, at this point, hinge joint A is the hinge formed by hinge
Contact, then when the intermediate hinge joint G of two link assembly is connected to the hinge joint B of the middle part double leval jib component bottom,
Form a stable locking mechanism.
When folding, when the hinge joint G in the middle part of external force forces two link assemblies is moved upwards, necessarily make hinge joint E and F mutual
Mutually close, to make two first connecting rods 1 become the driving lever of retaining mechanism, driving lever is close will to force three groups of double leval jib groups
Part is entirely close to center line in linkage, until all rod pieces all fold.
When expansion, when external force forces two first crossbars 5 to separate outward, driving lever is necessarily become, so forcing
All rod pieces expansion outward in linkage entirely in three groups of four-bar mechanisms, until two link assemblies are all expanded to horizontal position, from
And two link assemblies is made to lock three groups of double leval jib components.
Embodiment 2
As shown in figure 3 or 4, an embodiment of the present invention provides a kind of double leval jib retaining mechanisms, and the embodiment 2 is in embodiment 1
On the basis of further define the structure of the double leval jib retaining mechanism, improve the stability of double leval jib retaining mechanism connection
And safety.
As shown in figure 4, the hinge joint position in the middle part of two link assembly is less than the hinge joint of itself and the first connecting rod 1
Position, wherein 2 bottom of the second connecting rod is connected with gag lever post 6, the hinge joint in the middle part of two link assembly is connected to
On the gag lever post 6.
There are three centers of rotation for two link assemblies tool, and the center of rotation in the middle part of it is less than the center of rotation of both sides, so
When folding double leval jib retaining mechanism, the component being subject on two link assemblies must be horizontal, so necessarily making two connecting rods
Component forms two torques, and left side third connecting rod 3 is clockwise, and right side third connecting rod 3 is counterclockwise, with what is more stablized
Effect, three double leval jib components can be locked with this configuration, of course for ensure two link assemblies stability and fastness,
Define that wherein 2 bottom end of the second connecting rod is equipped with gag lever post 6 on the middle part double leval jib component in the technical program, it should
Gag lever post 6 can be fixed on the hinge joint of two 2 bottoms of the second connecting rod, can also be fixed therein a second connecting rod
On 2, the hinge joint in the middle part of two link assemblies is connected on the gag lever post 6, so gag lever post 6 is designed for two connection rod sets of positioning
Part is automatically locked to two link assemblies, prevents it from shrinking automatically, ensure that the safety of double leval jib retaining mechanism.
As shown in Figure 3, it is preferred that two 1 tops of the first connecting rod are hinged with supporting rod 7 by the hinge.Two
A supporting rod 7 is hinged point articulated with two first connecting rods 1 respectively, and supporting rod 7 is used to support pendant use.
Embodiment 3
As shown in figure 5, in order to overcome defect existing for trolley in the prior art or hand buggy, the present invention provides one kind
Using the folding pushchair of the double leval jib retaining mechanism, the trolley structure is simple, folds and expansion is more convenient quick,
Full linkage can be realized between rod piece, the trolley purposes is wide, and safety is higher.
The trolley includes car body 8, and the car body 8 is including the folding stand 9 that can be unfolded or fold and setting described
The wheel 10 of 9 bottom of folding stand, the wheel 10 include front vehicle wheel and rear wheel, and the folding stand 9 is symmetrically set by two
The double leval jib retaining mechanism set is connected by strut 11 and is formed, two link assembly in two double leval jib retaining mechanisms
Doubling chassis 12 is formed by the connection of strut 11,5 end of the first crossbar in two double leval jib retaining mechanisms passes through
The connection of the strut 11 forms cross tube component 13；Folding stand 9 is due to the use of two double leval jib retaining mechanisms, so folded bicycle
Frame 9, which has, folds and is unfolded two states.
The design of cross tube component 13 can be used for placing pocket 21, and pocket 21 fixes more secured, the support knot of rod piece
Structure, safety is higher, and there is no security risks, in addition, the presence of cross tube component 13 keeps hand push Vehicle Processing cheaper, section
Economic cost has been saved, the multifunctionality of trolley is improved.
The folding stand 9 of unfolded state forms the vehicle storehouse that can load article, be placed in the vehicle storehouse with it is described
The covering for roofs 14 for protecting article in the vehicle storehouse is arranged in the rumble seat that car body 8 is used cooperatively, the top in the vehicle storehouse, peace
Entrucking head cover 14 can not only be used for protecting the article in vehicle storehouse, but also may be used as desktop use, this installation covering for roofs
14 trolley may be used as camper use, and certain this trolley can not also install covering for roofs 14, to make this hand
Cart becomes uncovered trolley, is used when facilitating shopping.
When installing umbrella 23 on trolley, the covering for roofs 14 can be used to fixed umbrella 23, and the trolley with umbrella 23 can answer
Open air is used, such as is camped, sandy beach etc., user can use covering for roofs 14 as desktop, can be on covering for roofs 14
Dining of camping is played chess, and umbrella 23 is for sunshade or keeps off the rain.
As shown in Figure 10, wheel 10 includes that two front vehicle wheels and two rear wheels, the width of wheel 10 design according to demand,
It can be adapted for sand ground walking, can also design and drive a vehicle suitable for prevailing roadway, fold for convenience, on design doubling chassis 12
The length of strut 11 makes the spacing between two front vehicle wheels be more than the spacing between described two rear wheels, after folding
Two rear wheels can accommodate between two front-wheels, to reduce the volume after trolley folds, save the occupation of land of trolley
Area, vice versa, if be designed as two front vehicle wheels can be contained between two rear wheels can also, as long as can will fold
Wheel 10 afterwards can be combined.
Embodiment 4
As illustrated in figs. 6-11, the embodiment of the present invention 4 provides a kind of folding pushchair, base of the embodiment 4 in embodiment 3
On plinth, the structure of the folding pushchair is further defined, improves the multifunctionality of folding pushchair.
As shown in Figures 6 and 7, it should be noted that can push car body 8, this technology side manually in order to facilitate the trolley
It is defined in case in the double leval jib retaining mechanism being arranged symmetrically, is located at 4 top of the fourth link of 8 rear end of the car body
Extend, and the extension end of the fourth link 4 connects the push rod 15 for pushing the car body 8；The car body 8, which is in, to be folded
When state, 15 bottom end of the push rod supports in the horizontal plane.Push rod 15 after trolley folds, is pushed away for being used as pushing hands
After bar 15 is folded down, 15 bottom end of push rod is supported on level ground, and push rod 15 becomes the support leg of car body 8 at this time, plays branch
Support acts on, and so that the car body after folding 8 is had better stability, to make the car body after folding 8 be convenient for carrying and store.
It is used as pushing hands by push rod 15 to use, trolley can be made to be moved forward under the action of user's thrust, and it is existing
Some hand buggys are compared, many people more custom trolley.
As shown in fig. 6, further instruction is needed, and in the double leval jib retaining mechanism being arranged symmetrically, described
The bottom end of one connecting rod 1 extends, and the extension end of the first connecting rod 1 is connected by connecting rod 16, is located at the car body 8
The both ends of the connecting rod 16 of rear end are separately connected the rear wheel；The connecting rod 16 positioned at the car body 8 front end
Both ends connect the vertical shaft component for connecting front vehicle wheel by vertical shaft housing 17 respectively；The vertical shaft component includes vertical shaft 18, wheel
Fork 19 and vertical shaft lock 20,18 top of the vertical shaft are plugged in the vertical shaft housing 17,18 bottom of the vertical shaft and the wheel fork
19 connections, the wheel fork 19 for installing the front vehicle wheel, 20 setting of vertical shaft lock 17 bottom of vertical shaft housing and with
The vertical shaft 18 connects.
Effect by vertical shaft lock 20 is to lock vertical shaft 18, and vertical shaft 18 is positioned, vertical shaft 18 cannot arbitrarily be rotated, with
When just folding, front-wheel nonvoluntary can be swung, and folding is made to become more smooth, more convenient to use.In addition, in actual production
When, it can select that brake lock is installed at rear wheel, the brake lock can be in the lock state car body 8 or unlocked state,
It ensure that stability when being used under 8 unfolded state of car body and safety, wheel 10 can be locked, be existed to prevent car body 8
Slope rests on the ground of out-of-flatness and car body 8 occurs moves, and improves safety.
The width and height of wheel 10 can be designed as needed, and trolley provided by the invention can replace difference
Wheel 10 be suitble to the places such as different open airs or interior, improve the multipurpose and multifunctionality of trolley.
It is emphasized that in order to improve the multifunctionality of trolley provided by the invention, on described
Cross bar component 13 is the rectangular frame being made of two U-shaped sub- frames, close to one end of opening and two institutes on the sub- frame
The hinged place for stating first connecting rod 1 is connected, and one end far from opening on the sub- frame is rotatablely connected with the fourth link 4；Institute
It states and is lifted with pocket 21 on rectangular frame, 21 bottom of the pocket is placed on the doubling chassis 12.
Opening side and the hinge joint A of two first connecting rods 1 are hinged on sub- frame, then can be relative to hinge joint A
It is rotatablely connected, the side far from opening on sub- frame is hinged with fourth link 4, and hinge joint J then can be relative to hinge joint J
Rotation connection, therefore, sub- frame can also be folded down when car body 8 folds.
Cross tube component 13 forms a rectangular frame, can fall to fill one on the rectangular frame and be made with flexible material
Pocket 21, the bottom of pocket 21 is placed on the doubling chassis 12, is attempted according to test of many times, provided by the invention described more
The Collapsible cart of purposes can carry about 150 pounds of weight.
In addition, multi-purpose folding trolley provided by the invention further includes the Semi-automatic lock for lockking folding position, lock body is
It is made of plastic, it leans on the deformation of plastic part, when folding bicycle 8, locks the folding stand 9, be allowed to form an entirety,
Facilitate the trolley after folding that can stand, when car body 8 is unfolded, opens the Semi-automatic lock, the first connecting rod 1 of dividing right and left
It is allowed to be in work expanded position, that is, use at this point, the rod piece in car body 8 is just opened in linkage entirely with second connecting rod 2
State；When folding, the doubling chassis 12 is lifted upwards, and what the rod piece in the multi-purpose folding trolley just linked entirely turns up
Come, and automatic locking vehicle frame, it is easy to use, convenient for storage and transport.
As shown in figs. 9-11, it should be further noted that the covering for roofs 14 is the desktop being made of two pieces of jigsaw,
It is hinged close to one end of the first connecting rod 1 and the hinge on 1 top of the first connecting rod on the jigsaw, two pieces of spellings
Two fixed links 29 are symmetrically arranged between plate, the both ends of two fixed links 29 are pushed up with two first connecting rods 1 respectively
The hinge at end is fixedly connected, and two 29 middle parts of the fixed link are symmetrically provided with semicircle orifice, two semicircle orifice splicing groups
At the through-hole 22 for grafting umbrella 23.The covering for roofs 14 can be used as desktop for 2 people or 3 people, due to two pieces of jigsaw
Independently of each other, and two pieces of jigsaw and the hinge on 1 top of first connecting rod are hinged, so, when car body 8 folds, covering for roofs 14
It being folded together also with car body, when certain car body 8 is unfolded, covering for roofs 14 is unfolded together also with car body 8, smart structural design,
It is more convenient to use.
As shown in Figure 8, it should be noted that the present invention further defines on the basis of embodiment 3 on the trolley
The also structure with umbrella 23, also defines the concrete structure of umbrella 23, to make trolley be more applicable for camping.The umbrella 23
24 bottom end of umbrella stem pass through the covering for roofs 14 the through-hole 22, and 24 bottom end of the umbrella stem connection for being stably fixed on ground
The support element 25 in face, 24 top of the umbrella stem are equipped with sky shade 26, ventilation opening can be arranged on sky shade 26, convenient for ventilation, root
Sky shade 26 can be designed to according to use demand round or square；26 bottom margin side of the sky shade is equipped with and blocks inclination
The puggaree 27 of sunlight, the 26 bottom margin other side of the sky shade are equipped with the umbrella valve fringing 28 for providing and additionally covering, puggaree
27 length is more than the umbrella valve fringing 28.
Umbrella stem 24 can be bi-body structure, and 24 top of umbrella stem can be connected its bi-body structure by clamper, umbrella stem 24
Scoop or rotation during the support element 25 of bottom end can be made into the spike being inserted into soil, insertion is avenged enter the screw in sand, thus will
Umbrella 23 is fixed on ground, and 24 lower part of umbrella stem is preferably held on using resilient bushing or washer in jack, while umbrella stem 24 can
To be rotated in through-hole 22, so that puggaree 27 adapts to different directions, to preferably keep the sun off.
Covering for roofs 14 in the present invention can be used for desktop use, and family and friends is facilitated to divert oneself on desktop the time,
User can eat on desktop, play chess/card game etc., when sunlight strong or it is rainy when, user can prop up umbrella 23,
Food, articles for use etc. can be stored in the pocket 21 of trolley, certainly when not in use, can be packed up folded bicycle.
Special designing, silk-screen printing or decoration chessboard, mahjong table, ancient chess game can be passed through on covering for roofs 14
Chess chessboard or other board games, in addition, umbrella 23 can be with matched non-functional with Trivial Pursuit Unhinged with folding stand 9
Ornamental design.
Disclose trolley in the present invention, trolley is equipped with covering for roofs 14 and umbrella 23, and when use coordinates folding seat, simultaneously
Contain things, these types of structure it can also combine in the pocket 21 of trolley, which can be used as one kind and camp, spend
A kind of tool of the open air such as garden, seabeach, square.
The trolley that the present invention develops not only overcomes existing trolley and has a single function, is inconvenient to the defect folded, but also
The trolley is suitable for applying also for camping while city, and folding convenient is readily transported, and production cost is low, multiple functional, is fitted
It is used for a variety of crowds such as women, old man, cart is laborsaving, highly practical.
The present invention is not limited to above-mentioned preferred forms, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is every that there is skill identical or similar to the present application
Art scheme, is within the scope of the present invention.
Claims (10)
1. a kind of double leval jib retaining mechanism, which is characterized in that including two link assemblies and middle part double leval jib component；
The middle part double leval jib component is the be symmetrical set by two first connecting rods being symmetrical set (1) and two
The diamond structure that two connecting rods (2) hingedly form, the top of two first connecting rods (1) and two second connecting rods (2)
Bottom end is hinged by hinge；Two link assembly is hingedly made of two isometric third connecting rods (3)；
The top of two second connecting rods (2) is hinged fourth link (4) by hinge, and the fourth link (4) passes through
One cross bar (5) and the top of the first connecting rod (1) are hinged by the hinge；The first connecting rod (1), the second connecting rod
(2), hingedly composition is symmetricly set on the middle part double leval jib component both sides for the first crossbar (5) and the fourth link (4)
End double leval jib component；Hinge joint on two link assembly is located on the center line of the middle part double leval jib component, institute
The both ends for stating two link assemblies are hinged with the bottom end of two first connecting rods (1) respectively.
2. double leval jib retaining mechanism as described in claim 1, which is characterized in that the hinged point in the middle part of two link assembly
Set low the hinge joint position of first connecting rod described in Yu Qiyu (1).
3. double leval jib retaining mechanism as described in claim 1, which is characterized in that wherein second connecting rod (2) bottom
It is connected with gag lever post (6), the hinge joint in the middle part of two link assembly is connected on the gag lever post (6).
4. double leval jib retaining mechanism as described in claim 1, which is characterized in that two first connecting rod (1) tops are logical
It crosses the hinge and is hinged with supporting rod (7).
5. a kind of folding pushchair using any one of the claim 1-4 double leval jib retaining mechanisms, including car body (8),
It is characterized in that, the car body (8) includes that can be unfolded or the folding stand (9) that folds and be arranged at the folding stand (9) bottom
The wheel (10) in portion, the wheel (10) include front vehicle wheel and rear wheel, and the folding stand (9) is by two symmetrically arranged four
Connecting bar locking mechanism is connected by strut (11) and is formed, and two link assembly in two double leval jib retaining mechanisms passes through
Strut (11) connection forms doubling chassis (12), and the first crossbar (5) end in two double leval jib retaining mechanisms is logical
It crosses the strut (11) connection and forms cross tube component (13)；
The folding stand (9) of unfolded state forms the vehicle storehouse that can load article, is placed with and the vehicle in the vehicle storehouse
The covering for roofs (14) for protecting article in the vehicle storehouse is arranged in the rumble seat that body (8) is used cooperatively, the top in the vehicle storehouse.
6. folding pushchair as claimed in claim 5, which is characterized in that in the double leval jib retaining mechanism being arranged symmetrically,
The fourth link (4) top positioned at the car body (8) rear end extends, and the extension end connection of the fourth link (4)
Push rod (15) for pushing the car body (8)；When the car body (8) is in folded state, push rod (15) the bottom end support
In the horizontal plane.
7. folding pushchair as claimed in claim 5, which is characterized in that in the double leval jib retaining mechanism being arranged symmetrically,
The bottom end of the first connecting rod (1) extends, and the extension end of the first connecting rod (1) is connected by connecting rod (16),
It is separately connected the rear wheel positioned at the both ends of the connecting rod (16) of the car body (8) rear end；Before the car body (8)
The both ends of the connecting rod (16) at end connect the vertical shaft component for connecting front vehicle wheel by vertical shaft housing (17) respectively；
The vertical shaft component includes vertical shaft (18), wheel fork (19) and vertical shaft lock (20), is plugged at the top of the vertical shaft (18) described
In vertical shaft housing (17), vertical shaft (18) bottom is connect with the wheel fork (19), the wheel fork (19) be used to install it is described before
Wheel, the vertical shaft lock (20) are arranged in vertical shaft housing (17) bottom and are connect with the vertical shaft (18).
8. folding pushchair as claimed in claim 5, which is characterized in that the cross tube component (13) is U-shaped by two
Sub- frame composition rectangular frame, close to the hinged place phase of one end and two first connecting rods (1) of opening on the sub- frame
It connects, one end far from opening on the sub- frame is rotatablely connected with the fourth link (4)；It is lifted with mouth on the rectangular frame
Bag (21), pocket (21) bottom is placed on the doubling chassis (12).
9. folding pushchair as claimed in claim 5, which is characterized in that the covering for roofs (14) is made of two pieces of jigsaw
Desktop is cut with scissors close to one end of the first connecting rod (1) and the hinge on the first connecting rod (1) top on the jigsaw
It connects, is symmetrically arranged with two fixed links (29) between two pieces of jigsaw, the both ends of two fixed links (29) are respectively with two
The hinge on first connecting rod described in root (1) top is fixedly connected, and symmetrically semicircle orifice is provided in the middle part of two fixed links (29),
Through-hole (22) of two semicircle orifice splicing compositions for grafting umbrella (23).
10. folding pushchair as claimed in claim 9, which is characterized in that umbrella stem (24) bottom end of the umbrella (23) passes through institute
The through-hole (22) of covering for roofs (14) is stated, and the umbrella stem (24) bottom end connects the support element for being stably fixed on ground
(25), sky shade (26) is equipped at the top of the umbrella stem (24), sky shade (26) the bottom margin side, which is equipped with, blocks inclination sun
The puggaree (27) of light, sky shade (26) the bottom margin other side are equipped with the umbrella valve fringing (28) for providing and additionally covering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511001130.8A CN106476874B (en) | 2015-12-28 | 2015-12-28 | A kind of double leval jib retaining mechanism and its folding pushchair using the mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511001130.8A CN106476874B (en) | 2015-12-28 | 2015-12-28 | A kind of double leval jib retaining mechanism and its folding pushchair using the mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106476874A CN106476874A (en) | 2017-03-08 |
| CN106476874B true CN106476874B (en) | 2018-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511001130.8A Active CN106476874B (en) | 2015-12-28 | 2015-12-28 | A kind of double leval jib retaining mechanism and its folding pushchair using the mechanism |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108705600B (en) * | 2018-07-11 | 2024-12-06 | 中山市狄兰卡服饰有限公司 | Ultrasonic automatic tape cutting machine |
| CN108945077B (en) * | 2018-09-29 | 2023-09-29 | 昆山威凯儿童用品有限公司 | Baby stroller with front armrests capable of being automatically folded |
| CN114537499B (en) * | 2020-11-24 | 2024-07-30 | 绍兴上虞日星五金制品有限公司 | Child carrier |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2794417B1 (en) * | 1999-06-01 | 2001-08-17 | Daniel Jean Delaby | FOLDABLE TROLLEY |
| US8011686B2 (en) * | 2008-10-10 | 2011-09-06 | Zhaosheng Chen | Folding wagon |
| CN201712643U (en) * | 2010-06-15 | 2011-01-19 | 浙江泰普森休闲用品有限公司 | Bundle-type luggage barrow |
| CN104071196A (en) * | 2014-07-07 | 2014-10-01 | 谢玉才 | Folding type portable handcart |
| US9085311B1 (en) * | 2014-10-03 | 2015-07-21 | Zhaosheng Chen | Folding wagon with canopy |
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2015
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