Folding joint and children trolley
Technical field
The children trolley that
the utility model relates to a kind of folding joint that can fold and has this folding joint.
Background technology
In
prior art; Like notification number is CN1673003, and name is called in the dedicated file of children trolley disclosed, and the go-cart vehicle frame comprises front-wheel support, rear wheel support, handle; This front-wheel support, rear wheel support and handle promptly constitute folding joint; The rearward end of front-wheel support rotates through a rotating shaft with the leading section of rear wheel support and is connected, and the leading section of rear wheel support also rotates through another rotating shaft with the leading section of handle and is connected, and the rearward end of front-wheel support is fixed with the first tooth spare with a plurality of teeth; The leading section of handle is fixed with the second tooth spare with a plurality of teeth, and the first tooth spare is meshed with the second tooth spare.When the go-cart vehicle frame launched or folds, the first tooth spare that the second tooth spare on the handle can drive on the front-wheel support rotated, and made front-wheel support follow handle and accomplished expansion or folding.
The utility model content
The technical matters that
the utility model will solve provides a kind of folding joint.
are in order to solve the problems of the technologies described above; A kind of technical scheme that the utility model adopts is: a kind of folding joint with expanded position and folding position; Comprise pedestal bar, first dwang and second dwang; Described folding joint also comprises and is used for lockout mechanism that described pedestal bar, described first dwang and the described second dwang three are locked mutually; One end of described pedestal bar, an end of described first dwang are connected through the first rotating shaft phase pivot with an end of described second dwang; On the described pedestal bar be along axle center with described first rotating shaft center of circle circle radially offer chute; Be provided with moving pin in the described chute, there is an end of first connecting rod an end of described first dwang through the second rotating shaft pivotal joint, and there is an end of second connecting rod an end of described second dwang through the 3rd rotating shaft pivotal joint; The other end of described first connecting rod is connected with described moving pin phase pivot respectively with the other end of described second connecting rod, and described second rotating shaft and described the 3rd rotating shaft lay respectively at the both sides of the length extension line of described chute.
in some embodiments; The body of rod of described first dwang is positioned at the identical side of described chute with described first connecting rod, and the body of rod of described second dwang is positioned at the identical opposite side of described chute with described second connecting rod.
in some embodiments, described chute is positioned at the identical side of described first rotating shaft with the body of rod of described pedestal bar.
in some embodiments, the length bearing of trend of the corresponding described pedestal bar of the length bearing of trend of described chute.
in some embodiments; Offer first deep-slotted chip breaker on described first dwang; Offer second deep-slotted chip breaker on described second dwang, described moving pin is inserted in respectively in described first deep-slotted chip breaker and described second deep-slotted chip breaker.
are in some further embodiment; When described folding joint is under the expanded position; Described moving pin is inserted in an end of described first deep-slotted chip breaker and an end of described second deep-slotted chip breaker respectively; When described folding joint is under the folding position; Described moving pin is inserted in the other end of described first deep-slotted chip breaker and the other end of described second deep-slotted chip breaker respectively; Gradually long apart from gradual change between one end of described first deep-slotted chip breaker and the distance between first rotating shaft to the other end of described first deep-slotted chip breaker and first rotating shaft, an end of described second deep-slotted chip breaker and the distance between first rotating shaft be gradually long apart from gradual change between the other end and first rotating shaft of described second deep-slotted chip breaker extremely.
in some embodiments; Pedestal lever lock groove on the peripheral portion of the end that described lockout mechanism comprises the locking piece that is slidingly arranged on the described pedestal bar, be opened in described pedestal bar, be opened in the first dwang locked groove on the peripheral portion of the end on described first dwang, be opened in the second dwang locked groove on the peripheral portion of the end on described second dwang; Described lockout mechanism has latched position and unlocked position; When described lockout mechanism is under the latched position, described locking piece is inserted in respectively in described pedestal lever lock groove, the first dwang locked groove and the second dwang locked groove.
The another technical matters that
the utility model will solve provides a kind of children trolley.
are in order to solve the problems of the technologies described above; A kind of technical scheme that the utility model adopts is: a kind of children trolley; The folding joint that includes above any embodiment; Described children trolley also comprise the other end that is arranged at described first dwang front component, be arranged at the wheel assembly of the other end of described pedestal bar, the other end of described second dwang is provided with the pushing hands handle.
The scope of
the utility model is not limited to the technical scheme that the particular combination of above-mentioned technical characterictic forms, and also should contain simultaneously by above-mentioned technical characterictic or its equivalent feature to carry out combination in any and other technical scheme of forming.The technical characterictic that disclosed (but being not limited to) has a similar functions among for example above-mentioned characteristic and the application is replaced mutually and technical scheme of forming etc.
are because the technique scheme utilization; The utility model compared with prior art has advantage: after the lockout mechanism release; Rotate second dwang folding relative to the pedestal bar; The 3rd rotating shaft and second connecting rod move relative to first rotating shaft, thereby make moving pin move along chute, thereby drive first connecting rod and first dwang is folding to the pedestal bar is rotated.
Description of drawings
Accompanying drawing 1 is the front view of go-cart vehicle frame (the go-cart vehicle frame is under the expanded position);
Accompanying drawing 2 is the front view of go-cart vehicle frame (the go-cart vehicle frame is in the switching process of expanded position and folding position);
Accompanying drawing 3 is the front view of go-cart vehicle frame (the go-cart vehicle frame is under the folding position);
Accompanying drawing 4 is the complete section figure of folding joint;
Accompanying drawing 5 is the motion scheme drawing (folding joint is under the expanded position) of folding joint;
Accompanying drawing 6 is the motion scheme drawing of folding joint (folding joint is in the switching process of expanded position and folding position);
accompanying drawing 7 is the exploded drawings of folding joint.
wherein: 1, pedestal bar; 2, first dwang; 3, second dwang; 4, first connecting rod; 5, second connecting rod; 6, first rotating shaft; 7, moving pin; 8, second rotating shaft; 9, the 3rd rotating shaft; 10, chute; 11, first deep-slotted chip breaker; 12, second deep-slotted chip breaker; 13, pedestal lever lock groove; 14, the first dwang locked groove; 15, the second dwang locked groove; 16, locking piece; 17, front component; 18, wheel assembly; 19, pushing hands handle; 20, unlock button; 21, locking elastic spare.
The specific embodiment
are shown in accompanying drawing 4-accompanying drawing 7; A kind of folding joint with expanded position and folding position; Comprise pedestal bar 1, first dwang 2 and second dwang 3, folding joint also comprises and is used for lockout mechanism that pedestal bar 1, first dwang 2 and second dwang, 3 threes are locked mutually.
One end of
pedestal bar 1, an end of first dwang 2 are connected through first rotating shaft, 6 phase pivots with an end of second dwang 3.On the pedestal bar 1 be along axle center with first rotating shaft 6 center of circle circle radially offer chute 10; Be provided with moving pin 7 in the chute 10 slidably; The end that first connecting rod 4 is arranged through second rotating shaft, 8 pivotal joints on one end of first dwang 2; There is an end of second connecting rod 5 one end of second dwang 3 through the 3rd rotating shaft 9 pivotal joints; The other end of first connecting rod 4 is connected with moving pin 7 phase pivots respectively with the other end of second connecting rod 5, and second rotating shaft 8 and the 3rd rotating shaft 9 lay respectively at the both sides of the length extension line of chute 10.
The body of rod and the first connecting rod 4 of
first dwang 2 is positioned at the identical side of length extension line of chute 10, and the body of rod of second dwang 3 and second connecting rod 5 are positioned at the identical opposite side of length extension line of chute 10.Chute 10 and the body of rod of pedestal bar 1 are positioned at the identical side of first rotating shaft 6.The length bearing of trend of the corresponding pedestal bar 1 of the length bearing of trend of chute 10 we can say that also the length bearing of trend of chute 10 is consistent haply with the length bearing of trend of pedestal bar 1.
Among
first dwang 2, second dwang 3 and pedestal bar 1 three, pedestal bar 1 is positioned at three's centre.Offer on first dwang 2 on first deep-slotted chip breaker, 11, the second dwangs 3 and offer second deep-slotted chip breaker 12, moving pin 7 also is inserted in respectively in first deep-slotted chip breaker 11 and second deep-slotted chip breaker 12.When folding joint is under the expanded position, moving pin 7 is inserted in an end of first deep-slotted chip breaker 11 and an end of second deep-slotted chip breaker 12 respectively; Be under the folding position and work as folding joint, moving pin 7 is inserted in the other end of first deep-slotted chip breaker 11 and the other end of second deep-slotted chip breaker 12 respectively.Gradually long between the other end of distance to the first deep-slotted chip breaker 11 between one end of first deep-slotted chip breaker 11 and first rotating shaft 6 and first rotating shaft 6 apart from gradual change, gradually long between the other end of distance to the second deep-slotted chip breaker 12 between an end of second deep-slotted chip breaker 12 and first rotating shaft 6 and first rotating shaft 6 apart from gradual change.
lockout mechanism is not the main points of the utility model, in the present embodiment, is fixed with the latch fitting frame on the end of pedestal bar 1, constitutes a fixing integral body between latch fitting frame and the pedestal bar 1.Pedestal lever lock groove 13 on the peripheral portion of the end that lockout mechanism comprises the locking piece 16 that is slidingly arranged on the latch fitting frame, be opened in pedestal bar 1, be opened in the first dwang locked groove 14 on the peripheral portion of the end on first dwang 2, be opened in the second dwang locked groove 15 on the peripheral portion of the end on second dwang 3; Lockout mechanism has latched position and unlocked position; When lockout mechanism is under the latched position, locking piece 16 is inserted in respectively in pedestal lever lock groove 13, the first dwang locked groove 14 and the second dwang locked groove 15.Be provided with unlock button 20 on the latch fitting frame slidably; Have the inclined-plane that cooperates between unlock button 20 and the locking piece 16, have locking elastic spare 21 between locking piece 16 and the latch fitting frame, through pressing release ammonium button 20; Make locking piece 16 overcome locking elastic spare 21 and slide, thus the lockout mechanism release.Locking piece 16 can also be arranged on second dwang 3.
above folding joint is applied in the children trolley; Shown in accompanying drawing 1-accompanying drawing 3; Children trolley is except comprising above folding joint; Children trolley comprises that also the front component 17 of the other end that is arranged at first dwang 2, the other end of wheel assembly 18, the second dwangs 3 that is arranged at the other end of pedestal bar 1 are provided with pushing hands 19, and this folding joint promptly constitutes the go-cart vehicle frame of children trolley.Front component 17 is that pushing hands is 19 residing positions last down with wheel assembly 18 residing positions.
are after the lockout mechanism release; With second dwang, 3 relative pedestal bars 1 downward folding drawing close; The 3rd rotating shaft 9 relative first rotating shafts 6 move down; Second connecting rod 5 moves down, thereby makes moving pin 7 move down along chute 10, thereby drives first connecting rod 4 and 2 pairs of first dwangs are drawn close pedestal bar 1 is folding downwards.
above folding joint can also be applied in the children dinning chair, constitutes the front frame that supports seat mechanism like first dwang 2, and pedestal bar 1 constitutes the after poppet that supports seat mechanism, and second dwang 3 possibly constitute the back support bar of seat mechanism.
As stated, we are illustrated according to the aim of the utility model fully
, but the utility model is not limited to the foregoing description and implementation method.The practitioner of correlative technology field can carry out different variations and enforcement in the scope that the technological thought of the utility model is permitted.