Doll carriage that can single double conversion
Technical field
The present invention relates to a kind of doll carriage that can single double conversion.
Background technology
Traditional doll carriage generally has two kinds, and a kind of is for the single doll carriage that child takes, and another kind is for two double doll carriages that child takes.The shortcoming of single doll carriage is once can only take for a child, can't take for two children simultaneously.And existing double doll carriage generally all is left and right two seats to be set to take for two children simultaneously, but its shortcoming is: because left and right two seats will be set, its vehicle frame need increase a lot of poles, cost is higher, and its transverse width is bigger, and is very inconvenient during implementation, as if running into narrower passage even can't passing through, existing in addition double doll carriage all can not single double conversion, so its shared volume is bigger, is not easy to deposit.
Summary of the invention
The present invention seeks to: a kind of doll carriage that can single double conversion is provided, and it can be according to using needs to adjust amount of seats, and conversion operations is very convenient, and it is simple in structure, rod member is less, cost is lower, volume is less, be convenient to deposit.
Technical scheme of the present invention is: a kind of doll carriage that can single double conversion, comprise the front-wheel support that front component is installed, the rear wheel support of wheel assembly is installed, be installed in the pulling handle rod on the rear wheel support, and the middle part is equipped with back rest, opening U type seat frame forward, the both sides on described front-wheel support top have the preceding arm that extends back respectively, the both sides on rear wheel support top have the back arm that extends forward respectively, arm is plugged in the arm of back before described, be provided with first blocking device in the preceding arm, described back arm be provided with for the locking of first blocking device first on lockhole on the lockhole and second, the side pipe front portion of described U type seat frame is fixedly arranged on the support of preceding road, the side pipe rear portion is located in the locking piece of rear wheel support slidably, be provided with second blocking device in the described locking piece, the side pipe of U type seat frame is provided with first time lockhole and the second time lockhole for the locking of second blocking device, described front-wheel support be provided with can be simultaneously to the tripper of first blocking device and the second blocking device release, be connected with seat board between described two locking pieces, the rear cross-tube of U type seat frame is provided with the connecting element of establishing for this seat cushion integrated circuit board, this doll carriage has single running condition and two kinds of mode of operations of double running condition, when doll carriage is in single running condition, lockhole in the locking first of first blocking device, first time lockhole of second blocking device locking, seat board is hung on downwards between two locking pieces, when doll carriage is in double running condition, lockhole in the locking second of first blocking device, second time lockhole of second blocking device locking, seat board horizontal and card are established and are fixed on the connecting element top.
Described tripper comprises and is arranged on handling knob on the front-wheel support, first sector and second sector of pin joint in front-wheel support, conflict respectively at an end of first sector and second sector in above-mentioned two ends of handling knob, the other end of first sector and second sector is connected with first trailing cable and second trailing cable that is used for first blocking device and the second blocking device release respectively.
Described first blocking device comprises the fixed block that is arranged in the preceding arm, has a radial slot in this fixed block, be provided with first locking bar in the radial slot, be provided with first stage clip between the upper end of first locking bar and the preceding arm, the bottom of preceding arm is provided with first jack that plugs for first locking bar, described first locking bar is provided with the perforate that wears for first trailing cable, before arm be plugged on first lockhole on the lockhole or second by first locking bar and realize locking with the back arm, when pushing the handling knob of tripper, handle knob to drive on first locking bar and move by first trailing cable, first locking bar withdraws from first lockhole on the lockhole or second, realizes release.
Described second blocking device comprises relatively locking piece slide block in axial sliding, and Open Side Down, U type second locking bar that can move radially, between one end of second locking bar and the locking piece second stage clip is installed, locking piece top is provided with second jack that the other end for second locking bar plugs, described locking piece is plugged in the locking that realizes in first time lockhole or the second time lockhole with the side pipe of U type seat frame by second locking bar, be provided with axially extended spring between slide block and the locking piece, the top of slide block is provided with the bevelled slideway, the transverse part of described second locking bar is slidably disposed on this slideway, when the side pipe of locking piece and U type seat frame locks, the transverse part of second locking bar is arranged on the low level place of slideway, described second trailing cable and slide block are connected and fixed, when pushing the handling knob of tripper, handle knob by moving behind second trailing cable drive slide block, slide block then drives on second locking bar by the bevelled slideway and moves, and second locking bar withdraws from first time lockhole or second time lockhole, realizes release.
The movable end of described seat board is provided with the bayonet part of establishing for the connecting element card, and when doll carriage was in double running condition, the bayonet part of seat board was put and is located on the connecting element, realizes the horizontal of seat board.
Advantage of the present invention is:
1. the present invention can be according to using needs to adjust amount of seats, and conversion operations is very convenient, only need push to handle knob to get final product.
. the present invention is simple in structure, rod member is less, cost is lower, volume is less, be convenient to deposit.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Block diagram when Fig. 1 is in single running condition for the present invention;
Fig. 2 is the cutaway view at A place among Fig. 1;
Fig. 3 is the cutaway view at C place among Fig. 2;
Fig. 4 is the cutaway view at D place among Fig. 3;
Block diagram when Fig. 5 is in double running condition for the present invention;
Fig. 6 is the cutaway view at B place among Fig. 5;
Fig. 7 is the cutaway view at E place among Fig. 6;
Scheme drawing when Fig. 8 is in released state for the side pipe of second locking bar among Fig. 3 and U type seat frame;
Scheme drawing when Fig. 9 is in released state for the side pipe of second locking bar among Fig. 4 and U type seat frame.
Wherein: 1 front component;
2 front-wheel supports; Arm before 21; 22 first blocking devices; 221 fixed blocks; 222 radial slots; 223 first locking bars; 224 first stage clips; 225 first jacks; 226 perforates; 23 trippers; 231 handle knob; 232 first sectors; 233 second sectors; 234 first trailing cables; 235 second trailing cables;
3 wheel assemblies;
4 rear wheel supports; 41 back arms; Lockhole on 42 first; Lockhole on 43 second; 44 locking pieces; 45 second blocking devices; 451 slide blocks; 452 second locking bars; 453 second stage clips; 454 second jacks; 455 springs; 456 slideways;
5 pulling handle rods;
6 back support bar;
7 U type seat frames; 71 side pipes; 72 first times lockholes; 73 second times lockholes; 74 rear cross-tubes; 75 connecting elements;
8 seat boards; 81 bayonet parts.
The specific embodiment
Embodiment: extremely shown in Figure 9 as Fig. 1, a kind of doll carriage that can single double conversion, comprise the front-wheel support 2 that front component 1 is installed, the rear wheel support 4 of wheel assembly 3 is installed, be installed in the pulling handle rod 5 on the rear wheel support 4, and the middle part is equipped with back rest 6, opening U type seat frame 7 forward, the both sides on described front-wheel support 2 tops have the preceding arm 21 that extends back respectively, the both sides on rear wheel support 4 tops have the back arm 41 that extends forward respectively, arm 21 is plugged in the arm 41 of back before described, be provided with first blocking device 22 in the preceding arm 21, described back arm 41 be provided with for 22 lockings of first blocking device first on lockhole 43 on the lockhole 42 and second, side pipe 71 front portions of described U type seat frame 7 are fixedly arranged on the preceding road support 2, side pipe 71 rear portions are located in the locking piece 44 of rear wheel support 4 slidably, be provided with second blocking device 45 in the described locking piece 44, the side pipe 71 of U type seat frame 7 is provided with first time lockhole 72 and the second time lockhole 73 for 45 lockings of second blocking device, described front-wheel support 2 be provided with can be simultaneously to the tripper 23 of first blocking device 22 and 45 releases of second blocking device, be connected with seat board 8 between described two locking pieces 44, the rear cross-tube 74 of U type seat frame 7 is provided with the connecting element of establishing for bayonet part 81 cards of this seat board 8 75.
This doll carriage has single running condition and two kinds of mode of operations of double running condition, when doll carriage is in single running condition, lockhole 42 in 22 lockings first of first blocking device, first time lockhole 72 of second blocking device, 45 lockings, seat board 8 is hung on downwards between two locking pieces 44, when doll carriage is in double running condition, lockhole 42 in 22 lockings second of first blocking device, second time lockhole 72 of second blocking device, 45 lockings, seat board 8 horizontal and card are established and are fixed on connecting element 75 tops.
Described tripper 23 comprise be arranged on the front-wheel support 2 handle knob 231, first sector 232 and second sector 233 of pin joint in front-wheel support 2, conflict respectively at an end of first sector 232 and second sector 233 in above-mentioned 231 the two ends of handling knob, the other end of first sector 232 and second sector 233 is connected with first trailing cable 234 and second trailing cable 235 that is used for first blocking device 22 and 45 releases of second blocking device respectively.
Described first blocking device 22 comprises the fixed block 221 that is arranged in the preceding arm 21, has a radial slot 222 in this fixed block 221, be provided with first locking bar 223 in the radial slot 222, be provided with first stage clip 224 between the upper end of first locking bar 223 and the preceding arm 21, the bottom of preceding arm 21 is provided with first jack 225 that plugs for first locking bar 223, described first locking bar 223 is provided with the perforate 226 that wears for first trailing cable 234, before arm 21 be plugged on first on the lockhole 42 or second lockhole 43 by first locking bar 223 and realize and the locking of arm 4 afterwards, push handle knob 231 o'clock of tripper 23, handle knob 231 by moving on first trailing cable, 234 drives, first locking bar 223, first locking bar 223 withdraws from first lockhole 43 on the lockhole 42 or second, realizes release.
Described second blocking device 45 comprises relatively locking piece 44 slide block 451 in axial sliding, and Open Side Down, U type second locking bar 452 that can move radially, second stage clip 453 is installed between one end of second locking bar 452 and the locking piece 44, locking piece 44 tops are provided with second jack 454 that the other end for second locking bar 452 plugs, described locking piece 44 is plugged in by second locking bar 452 and realizes in first time lockhole 72 or the second time lockhole 73 and the locking of the side pipe 71 of U type seat frame 7, be provided with axially extended spring 455 between slide block 751 and the locking piece 44, the top of slide block 451 is provided with bevelled slideway 456, the transverse part of described second locking bar 452 is slidably disposed on this slideway 456, when the side pipe 71 of locking piece 44 and U type seat frame 7 locks, the transverse part of second locking bar 452 is arranged on the low level place of slideway 456, described second trailing cable 235 is connected and fixed with slide block 451, push handle knob 231 o'clock of tripper 23, handle knob 231 by moving behind second trailing cable, the 235 drive slide blocks 451,451 of slide blocks drive on second locking bar 452 by bevelled slideway 456 and move, second locking bar 452 withdraws from first time lockhole 72 or second time lockhole 73, realizes release.
When the present invention need be when single running condition be converted to double running condition, as long as that pushes tripper 23 handles knob 231, handle knob and 231 push first sector 232 and second sector 233, first sector 232 and second sector 233 rotate with separately bearing pin respectively, and spur first trailing cable 234 and second trailing cable 235, first trailing cable 234 drives on first locking bar 223 and moves, first locking bar 223 withdraws from lockhole 42 on first, release before realizing between arm 21 and the back arm 41, move after second trailing cable 235 drives slide block 451 simultaneously, 451 of slide blocks drive on second locking bar 452 by bevelled slideway 456 and move, second locking bar 452 withdraws from lockhole 72 first time, realizes the release between locking piece 44 and the U type seat frame 7.Then, spur front-wheel support 2 forward, when being drawn to suitable location, first locking bar 223 and second locking bar 452 are respectively under the effect of first stage clip 224 and second stage clip 453, automatically insert lockhole 43 and second time lockhole 73 on second, the locking when realizing double running condition.In the above-mentioned process that spurs front-wheel support 2 forward, with seat board 8 upwards upset earlier, when go-cart enters double running condition and locking, downward again overturning seat backing plate 8, the bayonet part 81 of seat board 8 is put be located on the connecting element 75, realize the horizontal of seat board 8, sit for second child and establish.
Below only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.In addition to the implementation, 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.