CN204196971U - A kind of children trolley - Google Patents
A kind of children trolley Download PDFInfo
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- CN204196971U CN204196971U CN201420600596.4U CN201420600596U CN204196971U CN 204196971 U CN204196971 U CN 204196971U CN 201420600596 U CN201420600596 U CN 201420600596U CN 204196971 U CN204196971 U CN 204196971U
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- connecting rod
- wheel support
- rear wheel
- auxiliary connecting
- children trolley
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Abstract
The utility model relates to a kind of children trolley, comprise trolley rack, trolley rack comprises front-wheel support, rear wheel support, push rod and seat bar, the seat leading section of bar rotates with the top of front-wheel support and is connected, the upper end of rear wheel support is relative with push rod can be arranged rotationally, particularly, front-wheel support, push rod, rear wheel support, seat bar four rod members form four-bar linkage, described four-bar linkage has four pivot point, has one can be separated and have one can slide in described four rod members in described four pivot point.The utility model is folding and launch fast and easy, and folding rear size is less, is convenient to packed and transported, reduces traffic cost.
Description
Technical field
The utility model relates to articles for children field, particularly a kind of children trolley.
Background technology
As shown in Figure 1 and 2, a kind of children trolley in prior art, comprise the trolley rack 1 with folding and expanded position, front component 2, wheel assembly 3 and the lockout mechanism for trolley rack 1 being locked in expanded position, trolley rack 1 comprises the side stand being positioned at go-cart both sides, be arranged on the end cross between the side stand of both sides, each side stand comprises the front-wheel support 4 that bottom is provided with front component 2, bottom is provided with the rear wheel support 5 of wheel assembly 3, bottom and the upper end of front-wheel support 4 rotate the push rod 6 be connected, be connected to the seat bar between front-wheel support 4 and rear wheel support 5, the upper end of rear wheel support 5 rotates with the middle part of push rod 6 and is connected, the rearward end of seat bar rotates with the bottom of rear wheel support 5 and is connected, the seat leading section of bar and the middle part phase pivot of front-wheel support 4 are rotationally connected, end cross comprises the first connecting rod and second connecting rod that intersect, first connecting rod and second connecting rod are rotationally connected at infall phase pivot, the leading section of first connecting rod, the leading section of second connecting rod rotates with the bottom of the front-wheel support 4 of both sides respectively and is connected, the rearward end of first connecting rod, the rearward end of second connecting rod rotates with the bottom of the rear wheel support 5 of both sides respectively and is connected.Time folding, the upper end of push rod 6 is folding towards the front portion of trolley rack 1, because the upper end of rear wheel support 5 is connected with the middle part of push rod 6, and be also connected with end cross and seat bar at front-wheel support 4 and rear wheel support 5, after folding, the upper-end part of driving of rear wheel support 5 is in the middle part of push rod 6, the outside of the bottom of rear wheel support 5 backward and to the bottom of push rod 6 is stretched out, and the part of stretching out is longer, such that described children trolley volume is after folding comparatively large, traffic cost is higher.
Summary of the invention
Technical problem to be solved in the utility model overcomes the deficiencies in the prior art, provides the children trolley that a kind of folding volume is less, traffic cost is lower.
For solving above technical matters, the utility model adopts following technical scheme:
A kind of children trolley, comprise the trolley rack with folding and expanded position, front component and wheel assembly, described trolley rack comprises the front-wheel support that bottom is provided with described front component, bottom is provided with the rear wheel support of described wheel assembly, bottom and the upper end of described front-wheel support rotate the push rod be connected and the seat bar be arranged between described front-wheel support and described rear wheel support, the leading section of described seat bar rotates with the top of described front-wheel support and is connected, the upper end of described rear wheel support is relative with described push rod can be arranged rotationally, described front-wheel support, push rod, rear wheel support, seat bar four rod members form four-bar linkage, described four-bar linkage has four pivot point, there is one can be separated in described four pivot point and have one can slide in described four rod members.
Described push rod is provided with the sliding part that can slide along its length, and the upper end of described rear wheel support rotates with described sliding part and is connected.
Described trolley rack also comprises for by relative with described rear wheel support for described sliding part the first lockout mechanism locked, and described first lockout mechanism is arranged between described sliding part and described rear wheel support.
Described sliding part comprises and is arranged on sliding sleeve on described push rod and rotates the first attaching parts be connected with the upper end of described rear wheel support, one in described sliding sleeve and the first attaching parts two parts is provided with groove, another is provided with plug-in unit, when described trolley rack is in expanded position, described plug-in unit inserts described groove; When described trolley rack is in folding position, described plug-in unit departs from described groove.
Described seat bar and described rear wheel support detouchable are rotationally connected, and when described trolley rack is in expanded position, described seat bar rotates with the bottom of described rear wheel support and is connected.
Described trolley rack comprises and is positioned at go-cart both sides and symmetrically arranged side stand, each described side stand includes described front-wheel support, rear wheel support, seat bar and push rod, and described trolley rack also comprises the end cross between the described side stand being connected to both sides and is connected to the back pole-bracket between the described rear wheel support of both sides.
Cross of the described end comprises the first connecting rod and second connecting rod that intersect, described first connecting rod and described second connecting rod to be rotated by pivot at infall and are connected, the leading section of described first connecting rod, the leading section of described second connecting rod rotate with the bottom of the described front-wheel support of both sides respectively and are connected, and the rearward end of described second connecting rod, the rearward end of described second connecting rod are removably rotationally connected with the described rear wheel support of both sides respectively.
Described back pole-bracket comprises third connecting rod, double leval jib, to rotate the first auxiliary connecting rod be connected with the upper end of described third connecting rod, to rotate the second auxiliary connecting rod be connected with the bottom of described third connecting rod, to rotate the 3rd auxiliary connecting rod that is connected and rotating the 4th auxiliary connecting rod be connected with the bottom of described double leval jib with the upper end of described double leval jib, described third connecting rod and described double leval jib intersect, one end of described first auxiliary connecting rod rotates with an end of described 3rd auxiliary connecting rod and is connected, the other end of described first auxiliary connecting rod, the other end of described 3rd auxiliary connecting rod rotates with the middle part of the described rear wheel support of both sides respectively and is connected, one end of described second auxiliary connecting rod rotates with an end of described 4th auxiliary connecting rod and is connected, the other end of described second auxiliary connecting rod, the other end of described 4th auxiliary connecting rod rotates with the bottom of the described rear wheel support of both sides respectively and is connected, when described trolley rack is in expanded position, described first auxiliary connecting rod and described 3rd auxiliary connecting rod are on same straight line, described second auxiliary connecting rod and described 4th auxiliary connecting rod are on same straight line, described children trolley also comprises the second lockout mechanism for described trolley rack being locked in expanded position, described second lockout mechanism is arranged on described back pole-bracket.
Between the center of described go-cart described front component after first time is folding and the center of described wheel assembly, there is the first distance be positioned in horizontal direction, after second time is folding, have the second distance be positioned in horizontal direction between the center of described front component and the center of described wheel assembly, described second distance is less than described first distance.
In described four pivot point, in two pivot point at wherein said rear wheel support place, at least one can be dismantled, and the wheel assembly when folding on this rear wheel support can be close to front component further.
Because technique scheme is used, the utility model compared with prior art has following advantages:
The utility model is folding and launch fast and easy, and folding rear size is less, is convenient to packed and transported, reduces traffic cost.
Accompanying drawing explanation
Fig. 1 be in prior art children trolley fold after lateral plan;
Fig. 2 be in prior art children trolley fold after front view;
In figure: 1, trolley rack; 2, front component; 3, wheel assembly; 4, front-wheel support; 5, rear wheel support; 6, push rod.
Fig. 3 is the block diagram after the children trolley of embodiment one of the present utility model launches;
Fig. 4 is the lateral plan after the children trolley of embodiment one of the present utility model launches;
Fig. 5 is A place enlarged drawing (not showing rear wheel support) in Fig. 3;
Fig. 6 is the lateral plan after the children trolley of embodiment one of the present utility model folds;
Fig. 7 is the push rod of the children trolley of embodiment two of the present utility model and the enlarged drawing (push rod and rear wheel support are separated) of rear wheel support junction;
Fig. 8 is the lateral plan after the children trolley of embodiment two of the present utility model folds;
In figure: 1, trolley rack; 2, front component; 3, wheel assembly; 4, front-wheel support; 5, rear wheel support; 6, the second lockout mechanism; 7, end cross; 8, push rod; 9, seat bar; 10, first connecting rod; 11, second connecting rod; 12, the second attaching parts; 13, sliding part; 14, back pole-bracket; 15, third connecting rod; 16, double leval jib; 17, the first auxiliary connecting rod; 18, the second auxiliary connecting rod; 19, the 3rd auxiliary connecting rod; 20, the 4th auxiliary connecting rod; 21, pin; 22, back support bar; 23, backrest support; 24, plug-in unit; 25, groove; H, the first distance; H, second distance.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is described further:
Embodiment 1
As Fig. 3 ~ 6, a kind of children trolley, comprise trolley rack 1, front component 2 and the wheel assembly 3 with folding and expanded position, trolley rack 1 comprises the side stand being positioned at go-cart both sides, each side stand comprises bottom is provided with the front-wheel support 4 of front component 2, bottom is provided with wheel assembly 3 rear wheel support 5, bottom and the upper end of front-wheel support 4 rotate the push rod 8 be connected and the seat bar 9 be arranged between front-wheel support 4 and rear wheel support 5, and the leading section of seat bar 9 and the top of front-wheel support 4 are rotated by pivot and is connected; The upper end of rear wheel support 5 rotates with push rod 8 and is connected, and the upper end of rear wheel support 5 is also arranged slidably along the length direction of push rod 8, and the rearward end of seat bar 9 is removably connected with rear wheel support 5 phase of homonymy.
In the present embodiment, push rod 8 is provided with the sliding part 13 that can slide along its length, the upper end of rear wheel support 5 and sliding part 13 are rotated by pivot and are connected.Trolley rack 1 also comprises for the first lockout mechanism by relative with rear wheel support 5 for sliding part 13 locking, and the first lockout mechanism is arranged between sliding part 13 and rear wheel support 5.The concrete structure of the first lockout mechanism does not have special provision, as long as can lock relative with push rod 8 for sliding part 13.
In the present embodiment, trolley rack 1 also comprises the end cross 7 between the side stand being arranged on both sides, end cross 7 comprises the first connecting rod 10 and second connecting rod 11 that intersect, first connecting rod 10 and second connecting rod 11 to be rotated by pivot at infall and are connected, and the leading section of first connecting rod 10, the leading section of second connecting rod 11 are rotated by pivot with the bottom of the front-wheel support 4 of both sides respectively and be connected; The rearward end of first connecting rod 10 or second connecting rod 11, the rearward end of seat bar 9 two parts rotate each other connection and one of them be removably connected with rear wheel support 5 phase of homonymy.
In the present embodiment, for the ease of the rearward end of first connecting rod 10, dismounting between the rearward end of second connecting rod 11 and rear wheel support 5 and the dismounting between the rearward end of seat bar 9 and rear wheel support 5, trolley rack 1 also comprises the second attaching parts 12 be removably connected mutually with the bottom of rear wheel support 5, seat bar 9, first connecting rod 10 or second connecting rod 11 and the second attaching parts 12 are rotated by pivot and are connected, when trolley rack 1 is in expanded position, second attaching parts 12 is connected with the bottom of rear wheel support 5, when trolley rack 1 is in folding position, second attaching parts 12 is separated with rear wheel support 5.Particularly, the second attaching parts 12 is provided with pin 21, the bottom of rear wheel support 5 is provided with pin hole, when trolley rack 1 is in expanded position, pin 21 inserts pin hole; When trolley rack 1 is in folding position, pin 21 departs from pin hole.
Trolley rack 1 also comprises the back pole-bracket 14 between the rear wheel support 5 being connected to both sides, back pole-bracket 14 comprises third connecting rod 15, double leval jib 16, the first auxiliary connecting rod 17 be rotationally connected with the upper end phase pivot of third connecting rod 15, the second auxiliary connecting rod 18 be rotationally connected with the bottom phase pivot of third connecting rod 15, the 3rd auxiliary connecting rod 19 be rotationally connected with the upper end phase pivot of double leval jib 16 and the 4th auxiliary connecting rod 20 be rotationally connected with the bottom phase pivot of double leval jib 16, third connecting rod 15 and double leval jib 16 intersect, one end of the first auxiliary connecting rod 17 and an end phase pivot of the 3rd auxiliary connecting rod 19 are rotationally connected, the other end of first auxiliary connecting rod 17, the other end of 3rd auxiliary connecting rod 19 is rotationally connected with the middle part phase pivot of the rear wheel support 5 of both sides respectively, one end of the second auxiliary connecting rod 18 and an end phase pivot of the 4th auxiliary connecting rod 20 are rotationally connected, the other end of second auxiliary connecting rod 18, the other end of 4th auxiliary connecting rod 20 rotates with the bottom of the rear wheel support 5 of both sides respectively and is connected, when trolley rack 1 is in expanded position, first auxiliary connecting rod 17 and the 3rd auxiliary connecting rod 19 are on same straight line, second auxiliary connecting rod 18 and the 4th auxiliary connecting rod 20 are on same straight line.
Trolley rack 1 also comprises the second lockout mechanism 6 for trolley rack 1 being locked in expanded position, second lockout mechanism 6 is arranged on back pole-bracket 14, particularly, can be arranged between the first auxiliary connecting rod 17 and the 3rd auxiliary connecting rod 19 or also and the first lockout mechanism 6 can be arranged between the second auxiliary connecting rod 18 and the 4th auxiliary connecting rod 20.
In the present embodiment, for the ease of children's ride-on, trolley rack 1 also comprises bottom and the middle part of seat bar 9 and to rotate the back support bar 22 be connected and the backrest support 23 be connected between back support bar 22, and the upper end of back support bar 22 rotates with the top of rear wheel support 5 and is connected.
The folding principle of the present embodiment children trolley:
When children trolley is in expanded position, as shown in Figure 3, second attaching parts 12 is connected with rear wheel support 5, sliding part 13 is slided into correct position and is locked by the first lockout mechanism on rear wheel support 5, back pole-bracket 14 is launched and is locked by the second lockout mechanism 6, when children trolley needs folding, unlock the second lockout mechanism 6, the upper end of push rod 8 is folding and bottom extends back to the front portion of go-cart, draw end cross 7 in simultaneously, complete the general folding of go-cart, this is folding as shown in Figure 1, now, there is between the center of front component 2 and the center of wheel assembly 3 the first distance H be positioned in horizontal direction, then the second attaching parts 12 departed from rear wheel support 5 and unlock the first lockout mechanism, the upper end of rear wheel support 5 is slided into the upper end near push rod 8, complete the twice-folded of go-cart, as shown in Figure 6, now, there is between the center of front component 2 and the center of wheel assembly 3 the second distance h be positioned in horizontal direction, second distance h is less than the first distance H.Can fold further on the folding base shown in Fig. 1 like this, greatly reduce the size of children trolley.
Embodiment 2
As accompanying drawing 7 ~ 8, the structure of the children trolley of this embodiment is similar to the vehicle frame of embodiment 1, difference is that the upper end of rear wheel support 5 is removably arranged with push rod 8 phase, particularly, sliding part 13 comprises and is arranged on sliding sleeve on push rod 8 and rotates the first attaching parts be connected with the upper end of rear wheel support 5, and the first attaching parts is provided with groove 25, and sliding sleeve is provided with the plug-in unit 24 of the grafting that to match with groove 25, when trolley rack 1 is in expanded position, plug-in unit 24 inserts groove 25; When trolley rack 1 is in folding position, plug-in unit 24 departs from groove 25.Groove 25 can be set to T-slot herein, and plug-in unit 24 can be the plug-in unit in mating connection with this T-slot.
The folding principle of the present embodiment children trolley is similar to embodiment 1, difference is, after go-cart folds into state as shown in Figure 1, groove 25 is separated with plug-in unit 24, then by close for the upper end of the upper end of rear wheel support 5 further to push rod 8, the spacing realizing the center of front component 2 and the center of wheel assembly 3 reduces further.
Embodiment 3
The structure of the children trolley of the present embodiment is similar to the vehicle frame of embodiment 1 or embodiment 2, rearward end two parts distinguishing rearward end, first connecting rod 10 or the second connecting rod 11 being a bar 9 are removably connected with rear wheel support 5 phase of homonymy respectively, when trolley rack 1 is in expanded position, rearward end two parts of the rearward end of seat bar 9, first connecting rod 10 or second connecting rod 11 rotate with the rear wheel support 5 of homonymy respectively and are connected.
In the utility model, front-wheel support 4, push rod 8, rear wheel support 5, seat bar 9 four rod members form four-bar linkage, this four-bar linkage has four pivot point, have a pivot point to be separated in these four pivot point and these four rod members have a rod member can relative sliding make this go-cart carry out twice fold, make go-cart after folding volume reduce further.
Above-described embodiment is only for illustrating technical conceive of the present utility model and feature; its object is to person skilled in the art can be understood content of the present utility model and implement according to this; protection domain of the present utility model can not be limited with this; all equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (10)
1. a children trolley, comprise the trolley rack with folding and expanded position, front component and wheel assembly, described trolley rack comprises the front-wheel support that bottom is provided with described front component, bottom is provided with the rear wheel support of described wheel assembly, bottom and the upper end of described front-wheel support rotate the push rod be connected and the seat bar be arranged between described front-wheel support and described rear wheel support, the leading section of described seat bar rotates with the top of described front-wheel support and is connected, the upper end of described rear wheel support is relative with described push rod can be arranged rotationally, it is characterized in that, described front-wheel support, push rod, rear wheel support, seat bar four rod members form four-bar linkage, described four-bar linkage has four pivot point, there is one can be separated in described four pivot point and have one can slide in described four rod members.
2. children trolley according to claim 1, is characterized in that, described push rod is provided with the sliding part that can slide along its length, and the upper end of described rear wheel support rotates with described sliding part and is connected.
3. children trolley according to claim 2, it is characterized in that, described trolley rack also comprises for by relative with described rear wheel support for described sliding part the first lockout mechanism locked, and described first lockout mechanism is arranged between described sliding part and described rear wheel support.
4. children trolley according to claim 2, it is characterized in that, described sliding part comprises and is arranged on sliding sleeve on described push rod and rotates the first attaching parts be connected with the upper end of described rear wheel support, one in described sliding sleeve and the first attaching parts two parts is provided with groove, another is provided with plug-in unit, when described trolley rack is in expanded position, described plug-in unit inserts described groove; When described trolley rack is in folding position, described plug-in unit departs from described groove.
5. children trolley according to claim 1, is characterized in that, described seat bar and described rear wheel support detouchable are rotationally connected, and when described trolley rack is in expanded position, described seat bar rotates with the bottom of described rear wheel support and is connected.
6. children trolley according to claim 1, it is characterized in that, described trolley rack comprises and is positioned at go-cart both sides and symmetrically arranged side stand, each described side stand includes described front-wheel support, rear wheel support, seat bar and push rod, and described trolley rack also comprises the end cross between the described side stand being connected to both sides and is connected to the back pole-bracket between the described rear wheel support of both sides.
7. children trolley according to claim 6, it is characterized in that, cross of the described end comprises the first connecting rod and second connecting rod that intersect, described first connecting rod and described second connecting rod to be rotated by pivot at infall and are connected, the leading section of described first connecting rod, the leading section of described second connecting rod rotate with the bottom of the described front-wheel support of both sides respectively and are connected, and the rearward end of described second connecting rod, the rearward end of described second connecting rod are removably rotationally connected with the described rear wheel support of both sides respectively.
8. children trolley according to claim 6, it is characterized in that, described back pole-bracket comprises third connecting rod, double leval jib, to rotate the first auxiliary connecting rod be connected with the upper end of described third connecting rod, to rotate the second auxiliary connecting rod be connected with the bottom of described third connecting rod, to rotate the 3rd auxiliary connecting rod that is connected and rotating the 4th auxiliary connecting rod be connected with the bottom of described double leval jib with the upper end of described double leval jib, described third connecting rod and described double leval jib intersect, one end of described first auxiliary connecting rod rotates with an end of described 3rd auxiliary connecting rod and is connected, the other end of described first auxiliary connecting rod, the other end of described 3rd auxiliary connecting rod rotates with the middle part of the described rear wheel support of both sides respectively and is connected, one end of described second auxiliary connecting rod rotates with an end of described 4th auxiliary connecting rod and is connected, the other end of described second auxiliary connecting rod, the other end of described 4th auxiliary connecting rod rotates with the bottom of the described rear wheel support of both sides respectively and is connected, when described trolley rack is in expanded position, described first auxiliary connecting rod and described 3rd auxiliary connecting rod are on same straight line, described second auxiliary connecting rod and described 4th auxiliary connecting rod are on same straight line, described children trolley also comprises the second lockout mechanism for described trolley rack being locked in expanded position, described second lockout mechanism is arranged on described back pole-bracket.
9. children trolley according to claim 1, it is characterized in that, between the center of described go-cart described front component after first time is folding and the center of described wheel assembly, there is the first distance be positioned in horizontal direction, after second time is folding, have the second distance be positioned in horizontal direction between the center of described front component and the center of described wheel assembly, described second distance is less than described first distance.
10. children trolley according to claim 1, it is characterized in that, in described four pivot point, in two pivot point at wherein said rear wheel support place, at least one can be dismantled, and the wheel assembly when folding on this rear wheel support can be close to front component further.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420600596.4U CN204196971U (en) | 2014-10-17 | 2014-10-17 | A kind of children trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420600596.4U CN204196971U (en) | 2014-10-17 | 2014-10-17 | A kind of children trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204196971U true CN204196971U (en) | 2015-03-11 |
Family
ID=52654959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420600596.4U Active CN204196971U (en) | 2014-10-17 | 2014-10-17 | A kind of children trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204196971U (en) |
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2014
- 2014-10-17 CN CN201420600596.4U patent/CN204196971U/en active Active
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| GR01 | Patent grant |