Bi-directional folded doll carriage
Technical field
The present invention relates to a kind of bi-directional folded doll carriage.
Background technology
Existing doll carriage comprises front-wheel support, is arranged on the front component of front-wheel support front lower place, rear wheel support, the pulling handle rod that is arranged on the wheel assembly of the rear wheel support back lower place and is rotatably connected on the rear wheel support leading section; The rear end of front-wheel support is connected with sliding sleeve; Sliding sleeve is enclosed within on the rear wheel support, is connected with connecting rod between pulling handle rod and the sliding sleeve, and vehicle frame is when deployed condition; Slide over and move to the extreme higher position on the rear wheel support, and locked by the blocking device on the rear wheel support.
Above-mentioned doll carriage is in folding process; As long as to downward power of pulling handle rod, the front end that the leading section of pulling handle rod will drive rear wheel support moves to the front lower place, slides over the rear end that also can slide to rear wheel support under the effect of connecting rod; Just can realize the above-below direction size decreases with regard to car load in folding back like this; Though this folding mode is easy to operate, after car load was folding, the size of fore-and-aft direction can not diminish; Therefore still there is the bigger problem of volume after folding, can't fundamentally dwindles packaging volume.
Summary of the invention
The present invention seeks to: a kind of bi-directional folded doll carriage is provided, and its front-wheel support after poppet relatively rotates, and realizes the size decreases of the fore-and-aft direction of car load, and then reduces packaging volume.
Technical scheme of the present invention is: a kind of bi-directional folded doll carriage; Comprise front-wheel support, be arranged on the front-wheel support front lower place front component, rear wheel support, be arranged on the wheel assembly of rear wheel support lower end and be rotatably connected on the collapsible push handle component of rear wheel support upper end; Said rear wheel support is provided with and can be connected with connecting rod between sliding part and the collapsible push handle component along the sliding part of rear wheel support slip, and said rear wheel support is provided with the blocking device that is used for lock slide; This blocking device is by the folding handle control of first on collapsible push handle component release; Said front-wheel support comprises the front frame that extends back, and is connected with the after poppet that extends forward on the said sliding part, is connected with the bottom bracing frame on the after poppet; The upper end of bottom bracing frame and the upper pin of rear wheel support connect in succession; The rear end of said front frame is provided with preceding locking block, and the front end of after poppet is provided with the back locking block that can suit mutually with preceding locking block, and preceding locking block is rotationally connected with the connecting portion of back locking block through the bottom; Back locking block is provided with axially extended guide runner; Be inserted with lock pin in the guide runner, be provided with first stage clip between lock pin and the preceding locking block, the outside of said back locking block is provided with the second folding handle that sets firmly with lock pin.
Said rear wheel support comprises two back support rods; Said sliding part is two sliding sleeves that are set on two back support rods; Said after poppet pin joint between this two sliding sleeve, two struts about said bottom bracing frame has, the upper end of two struts is connected with the upper end pin joint of cooresponding back support rod respectively.
Two pulling handle rods about said collapsible push handle component comprises, the upper end of two pulling handle rods is respectively equipped with the handle joint assembly, and left and right sides Xiang Di is connected with push-up handle between the two handle joint assemblies.When vehicle frame folding, rotate push-up handle, make the basic vertical pulling handle rod setting of push-up handle, the front and back behind the shortening vehicle frame folding that can improve like this are to distance.The lower end of said two pulling handle rods is respectively equipped with the push rod attaching parts, and the upper end of two back support rods is respectively equipped with the rear wheel support attaching parts, and cooresponding rear wheel support attaching parts and push rod attaching parts connect through first rivet pin in succession.
Above-mentioned connecting rod is two, is separately positioned between left sliding sleeve and the left pulling handle rod, and between right sliding sleeve and the right pulling handle rod.
Said blocking device comprises the permanent seat that is fixed on the rear wheel support inner chamber; Be provided with long slot bore in the permanent seat, be provided with the pin hook in the long slot bore, dowel fixes is passed through on permanent seat in the lower end of pin hook; The front side, upper end of pin hook is provided with locking block; Permanent seat, rear wheel support and sliding sleeve corresponding to locking block are provided with lock hole, are provided with second stage clip between pin hook upper end rear side and the permanent seat, and second stage clip is pressed into locking block in the lock hole; The upper end rear side of pin hook also is connected with hauling rope, and hauling rope is walked around backward behind the bearing pin through the through hole on the permanent seat and is connected with first folding handle the on the pulling handle rod.
Radially be provided with on the said folding handle and draw pin, draw pin to be located in the axial groove of pulling handle rod, the other end of the hauling rope of said connecting pin hook is connected this and draws on the pin.
When car load folds, comprise before and after the folding and vehicle frame of vehicle frame upward and downward to folding two steps:
During vehicle frame upward and downward folding; On carry the folding handle of first on the pulling handle rod; The band moveable lock hook rotates backward, and lock dog withdraws from the lock hole of rear wheel support and sliding sleeve, and blocking device is realized release to sliding sleeve; Give downward power of pulling handle rod simultaneously; The front end that the leading section of pulling handle rod drives rear wheel support moves, slides over the lower end that slides to rear wheel support under the effect of connecting rod to the front lower place, this moment, after poppet rotated around the pin with sliding sleeve under the effect of bottom bracing frame, has so just realized car load the diminishing of above-below direction size after folding.
Vehicle frame is sagittal when folding; Spur the second folding handle forward; Make lock pin move forward to the leading section of guide runner, rotate front-wheel support this moment, makes front-wheel support roughly parallel with after poppet; And then rotate push-up handle and get final product, so just realized car load diminishing in folding back fore-and-aft direction size.
When car load launches, first front wheel support, the back locking block of current locking block and after poppet is tangent fashionable, and lock pin moves to the rearward end of guide runner after the effect of first stage clip under, and lock pin holds out against locking block afterwards at this moment, and front-wheel support is in deployed condition.Both hands are with carrying on the pulling handle rod then, and sliding sleeve is slided on rear wheel support, and the latch hook in the blocking device is embedded in the lock hole of rear wheel support and sliding sleeve under the elastic force effect of second stage clip, and sliding sleeve is locked, and vehicle frame is in deployed condition.Rotate push-up handle at last again, make push-up handle and pulling handle rod be in the expansion fully that car load has promptly been realized on same plane.
The present invention can be three wheel barrows, also can be the four-wheel go-cart, if front-wheel support only comprise before and after to the front frame (being that front-wheel support is a front frame) that extends, a front component is installed in the front lower place of front frame, promptly car load is three wheel barrows; If in the front frame that extends, to the front rail that extends, that needs only the left and right sides that two front components is installed in front rail to front-wheel support about the front frame front end sets firmly before and after having, promptly car load is the four-wheel go-cart.
Advantage of the present invention is:
1, the present invention is when car load is folding fully, and vehicle frame is the four-part form structure, and it is compared with three stage structure in the past, diminishes when can realize above-below direction size and fore-and-aft direction size, and the volume after folding is littler, is convenient to place and carry.
2, the present invention can rotate push-up handle when vehicle frame folding, makes the basic vertical pulling handle rod setting of push-up handle, and the front and back behind the shortening vehicle frame folding that can improve like this are to distance.
3, body frame structure for automotive of the present invention is simple, and the interference when folding is less, uses conveniently, and safety is also better.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Block diagram when Fig. 1 is in deployed condition for the present invention;
Lateral plan when Fig. 2 folds for upward and downward of the present invention
Fig. 3 is the block diagram when folding before and after the present invention;
Block diagram when Fig. 4 is in complete folded state for the present invention;
Fig. 5 is the partial enlarged drawing among Fig. 2;
Fig. 6 is the partial enlarged drawing among Fig. 3;
Structural representation when Fig. 7 is in the lock state for blocking device;
Structural representation when Fig. 8 is in released state for blocking device.
Wherein: 1 front-wheel support; 2 front components; 3 rear wheel supports; 4 wheel assemblies; 5 collapsible push handle component; 6 sliding parts; 7 connecting rods; 8 first folding handles; 9 front frames; 10 after poppets; 11 sliding sleeves; 12 bottom bracing framves; Locking block before 13; 14 back locking blocks; 15 guide runners; 16 lock pins; 17 first stage clips; 18 second folding handles; 19 permanent seats; 20 long slot bores; 21 pin hooks; 22 pins; 23 locking blocks; 24 lock holes; 25 second stage clips; 26 hauling ropes; 27 bearing pins; 28 through holes; 29 handle joint assemblies; 30 push-up handles; 31 back support rods; 32 struts; 33 push rod attaching partss; 34 rear wheel support attaching partss; 35 first rivets; 36 pulling handle rods.
The specific embodiment
Embodiment: extremely shown in Figure 8 like Fig. 1; A kind of bi-directional folded doll carriage, comprise front-wheel support 1, be arranged on front-wheel support 1 front lower place front component 2, rear wheel support 3, be arranged on the wheel assembly 4 of rear wheel support 3 lower ends and be rotatably connected on the pulling handle rod 5 of rear wheel support 4 upper ends.Said rear wheel support 3 is provided with can be along the sliding part 6 of rear wheel support 3 slips; Be connected with connecting rod 7 between sliding part 6 and the pulling handle rod 5; Said rear wheel support 3 is provided with the blocking device that is used for lock slide 6, and this blocking device is by the folding handle 8 control releases of first on the pulling handle rod 5.Said front-wheel support 1 comprises the front frame 9 that extends back; Be connected with the after poppet 10 that extends forward on the said sliding part 6; Be connected with bottom bracing frame 12 on the after poppet 10, the upper pin of the upper end of bottom bracing frame 12 and rear wheel support 3 connects in succession, and the rear end of said front frame 9 is provided with preceding locking block 13; The front end of after poppet 10 is provided with the back locking block 14 that can suit mutually with preceding locking block 13; Preceding locking block 13 is rotationally connected with the connecting portion of back locking block 14 through the bottom, and back locking block 14 is provided with axially extended guide runner 15, is inserted with lock pin 16 in the guide runner 15; Be provided with first stage clip 17 between lock pin 16 and the preceding locking block 13, the outside of said back locking block 14 is provided with the second folding handle 18 that sets firmly with lock pin 16.
Above-mentioned rear wheel support 3 comprises two back support rods 31; Said sliding part 6 is for being set in two sliding sleeves 11 on two back support rods; Said after poppet 10 pin joints are between this two sliding sleeve 11; The upper end of two struts, 32, two struts 32 was connected with the upper end pin joint of cooresponding back support rod 31 respectively about said bottom bracing frame 12 had.
The upper end of two pulling handle rods, 36, two pulling handle rods 36 was respectively equipped with that left and right sides Xiang Di is connected with push-up handle 30 between handle joint assembly 29, the two handle joint assemblies 29 about above-mentioned collapsible push handle component 5 comprised.When vehicle frame folding, rotate push-up handle 30, push-up handle 30 basic vertical pulling handle rods 36 are provided with, the front and back behind the shortening vehicle frame folding that can improve like this are to distance.The upper end that the lower end of said two pulling handle rods 36 is respectively equipped with push rod attaching parts 33, two back support rods 31 is respectively equipped with rear wheel support attaching parts 34, and cooresponding rear wheel support attaching parts 34 is connected through first rivet, 35 pin joints with push rod attaching parts 33.
Above-mentioned connecting rod 7 is two, is separately positioned between left sliding sleeve 11 and the left pulling handle rod 36, and between right sliding sleeve 11 and the right pulling handle rod 36.
Like Fig. 1, Fig. 7 and shown in Figure 8; The concrete structure of blocking device is: said blocking device comprises the permanent seat 19 that is fixed on rear wheel support 3 inner chambers; Be provided with long slot bore 20 in the permanent seat 19, be provided with pin hook 21 in the long slot bore 20, the lower end of pin hook 21 22 is fixed on the permanent seat 19 through pinning; The front side, upper end of pin hook 21 is provided with locking block 23; Permanent seat 19, rear wheel support 3 and sliding sleeve 11 corresponding to locking block 23 are provided with lock hole 24, be provided with second stage clip, 25, the second stage clips 25 between pin hook 21 upper end rear sides and the permanent seat 19 locking block 23 is pressed in the lock hole 24; The upper end rear side of pin hook 21 also is connected with hauling rope 26, and hauling rope 26 is walked around bearing pin 27 back backward and 8 is connected through first folding handle the on the through hole 28 on the permanent seat 19 and the pulling handle rod 36.
Radially be provided with on the said first folding handle 8 and draw pin, draw pin to be located in the axial groove of pulling handle rod 36, the other end of the hauling rope 26 of said connecting pin hook 21 is connected this and draws on the pin, because said structure is a prior art, and present embodiment not shown in the figures.
When car load folds, comprise before and after the folding and vehicle frame of vehicle frame upward and downward to folding two steps:
During vehicle frame upward and downward folding; On carry the folding handle 8 of first on the pulling handle rod 36; Hauling rope 26 drives latch hook 21 and rotates backward, and lock dog 23 withdraws from the lock hole 24 of rear wheel support 3 and sliding sleeve 11, and blocking device is realized release to sliding sleeve 11; Give 36 1 downward power of pulling handle rod simultaneously; The leading section of pulling handle rod 36 drives the front end of rear wheel support 3 to the lower end that move the front lower place, sliding sleeve 11 slides to rear wheel support 3 under the effect of connecting rod 7, and this moment, after poppet 10 rotated around the pin with sliding sleeve 11 under the effect of bottom bracing frame 12, had so just realized car load diminishing in folding back above-below direction size.
Vehicle frame is sagittal when folding; Spur the second folding handle 18 forward; Make lock pin 16 move forward to the leading section of guide runner 15, rotate front-wheel support 1 this moment, makes front-wheel support 1 roughly parallel with after poppet 10; And then rotate push-up handle 30 and get final product, so just realized car load diminishing in folding back fore-and-aft direction size.
When car load launches; Elder generation's front wheel support 1, current locking block 13 is tangent fashionable with the back locking block 14 of after poppet 10, and lock pin 16 moves to the rearward end of guide runner 15 after under the effect of first stage clip 17; This moment, lock pin 16 held out against back locking block 14, and front-wheel support 1 is in deployed condition.Both hands are with carrying on the pulling handle rod 36 then, and sliding sleeve 11 is slided on rear wheel support 3, and the latch hook 21 in the blocking device is embedded under the elastic force effect of second stage clip 17 in the lock hole of rear wheel support 3 and sliding sleeve 11, and sliding sleeve 11 is locked, and vehicle frame is in deployed condition.Rotate push-up handle 30 at last again, make push-up handle 30 and pulling handle rod 36 be in the expansion fully that car load has promptly been realized on same plane.
Below only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.Except that the foregoing description, the present invention can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the present invention's scope required for protection.