CN204196969U - Foldable wheelbarrow - Google Patents
Foldable wheelbarrow Download PDFInfo
- Publication number
- CN204196969U CN204196969U CN201420548291.3U CN201420548291U CN204196969U CN 204196969 U CN204196969 U CN 204196969U CN 201420548291 U CN201420548291 U CN 201420548291U CN 204196969 U CN204196969 U CN 204196969U
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- wheel support
- cliding seat
- stop pin
- rear wheel
- unlock piece
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Abstract
A kind of foldable wheelbarrow, comprise front-wheel support, rear wheel support, lining bar assembly, side handrail, cliding seat and push rod, sliding base sleeve is located on rear wheel support, lining bar assembly and front-wheel support, cliding seat is all rotationally connected, push rod and side handrail, cliding seat is all rotationally connected, side handrail simultaneously also with front-wheel support, rear wheel support is rotationally connected, this foldable wheelbarrow also comprises elasticity and is embedded the stop pin on rear wheel support, elastic rotation is arranged on the unlock piece in cliding seat, the trailing cable be connected with unlock piece, and the knob to be connected with trailing cable, described stop pin is for stretch in cliding seat thus cliding seat is fixed on rear wheel support, described unlock piece has the inclined-plane for supporting stop pin, and when unlock piece rotates, stop pin to head in rear wheel support thus makes cliding seat can opposing rear wheels support-moving by described inclined-plane.The implementation Process that the foldable wheelbarrow that the utility model provides folds or launches is convenient, and this latch-up structure is simple.
Description
Technical field
The utility model relates to a kind of go-cart, more particularly, relates to a kind of folding go-cart.
Background technology
Go-cart is a kind of instrument common in daily life, such as, go-cart for doing shopping, more such as the go-cart etc. of sitting of lying for infant.Storage during for the ease of carrying and not using, such as baby stroller, be set to folding usually.By go-cart is folded up, to reduce the space that go-cart needs to take.
Its folder function of existing foldable wheelbarrow otherwise implement comparatively difficulty, be exactly that its structure of mechanism of enabling go-cart realize folding is comparatively complicated, these defects or bring inconvenience to user, or make the manufacturing cost of go-cart higher, be unfavorable for marketing.
Utility model content
The technical problems to be solved in the utility model is, for fold mechanism complex structure and the folder function realization defect not easily of foldable wheelbarrow of the prior art, provides a kind of fold mechanism simple, is easy to folding foldable wheelbarrow.
A kind of foldable wheelbarrow, comprise front component, wheel assembly, front-wheel support, rear wheel support, lining bar assembly, side handrail, cliding seat and push rod, front component is connected on front-wheel support, wheel assembly is connected on rear wheel support, sliding base sleeve is located on rear wheel support, lining bar assembly and front-wheel support, cliding seat is all rotationally connected, push rod and side handrail, cliding seat is all rotationally connected, side handrail simultaneously also with front-wheel support, rear wheel support is rotationally connected, this foldable wheelbarrow also comprises elasticity and is embedded the stop pin on rear wheel support, elastic rotation is arranged on the unlock piece in cliding seat, the trailing cable be connected with unlock piece, and the knob to be connected with trailing cable, described stop pin is for stretch in cliding seat thus cliding seat is fixed on rear wheel support, described unlock piece has the inclined-plane for supporting stop pin, and when unlock piece rotates, stop pin to head in rear wheel support thus makes cliding seat can opposing rear wheels support-moving by described inclined-plane.
In certain embodiments, in described cliding seat, be provided with the sliding surface relative with rear wheel support, described sliding surface arranged the perforation penetrated for stop pin.
In certain embodiments, the two ends of described sliding surface are obliquely installed to form guide surface.
In certain embodiments, arrange roller in described cliding seat, the rolling surface of described roller protrudes from described sliding surface.
In certain embodiments, described sliding surface is parallel with the rotational plane of described unlock piece.
In certain embodiments, in described cliding seat, elastic block piece is set, for supporting with unlock piece elasticity.
In certain embodiments, arrange stop pin permanent seat in described rear wheel support, described stop pin is arranged in this stop pin permanent seat.
In certain embodiments, described knob is arranged on push rod, after described trailing cable is connected with unlock piece, interts to be connected with described knob in push rod through described cliding seat.
In certain embodiments, on described rear wheel support, also elasticity is embedded another stop pin, described stop pin is identical with another locking pin structure described, and is respectively used to be fixed by described cliding seat opposing rear wheels support when this foldable wheelbarrow is in deployed condition and collapse state.
Compared with prior art, the foldable wheelbarrow that the utility model provides forms an inclined-plane by arranging unlock piece, only needing force to rotate unlock piece can by the latch-release of stop pin, to make cliding seat can opposing rear wheels support-moving, thus complete the process folding or launch of needs, implement very convenient, this latch-up structure is also very simple.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the perspective view of the foldable wheelbarrow of the utility model one embodiment.
Fig. 2 is the schematic side view of the foldable wheelbarrow of the utility model one embodiment.
Fig. 3 is the schematic front view of the foldable wheelbarrow of the utility model one embodiment.
Fig. 4 is the part-structure enlarged diagram in B region in Fig. 2.
Fig. 5 is the part-structure enlarged diagram in a-quadrant and C region in Fig. 3.
Fig. 6 is the perspective exploded view of another angle of the part-structure in C region in Fig. 3.
Cross-sectional schematic when Fig. 7 is different angles and the different conditions in D region in Fig. 3.
Fig. 8-Figure 10 is the schematic side view of the foldable wheelbarrow different conditions of the utility model one embodiment, schematic diagram when wherein Fig. 8 is this foldable wheelbarrow deployed condition, schematic diagram when Figure 10 is this foldable wheelbarrow collapse state, Fig. 9 is that this foldable wheelbarrow is in launching the intermediateness schematic diagram between collapse state.
Detailed description of the invention
In a specific embodiment, be described for the structure and fuction of baby stroller to foldable wheelbarrow provided by the utility model.
As shown in Figure 1, this foldable wheelbarrow comprises front component 1, wheel assembly 10, front-wheel support 2, rear wheel support 9, lining bar assembly 3, side handrail 4, cliding seat 8, push rod 6, knob 5, and combine the lockout mechanism being arranged on cliding seat 8 place and (do not indicate in Fig. 1, to elaborate in conjunction with other accompanying drawings), (be not shown in detail in Fig. 1 in conjunction with being arranged on knob 5 Chu bis-road lockout mechanism, to elaborate in conjunction with other accompanying drawings), and connect the trailing cable 16 (Fig. 5) be arranged between knob 5 and lockout mechanism.
Front component 1 is connected on front-wheel support 2, wheel assembly 10 is connected on rear wheel support 9, cliding seat 8 is set on rear wheel support 9, lining bar assembly 3 and front-wheel support 2, cliding seat 8 are all rotationally connected, push rod 6 and side handrail 4, cliding seat 8 are all rotationally connected, and side handrail 4 is also rotationally connected with front-wheel support 2, rear wheel support 9 simultaneously.Composition graphs 2, Fig. 3 and Fig. 8-10, cliding seat 8 can be fixed on the correct position (as shown in Fig. 2 and Fig. 8) of rear wheel support 9 by this lockout mechanism, is in deployed condition to make this foldable wheelbarrow.By operation knob 5, drive trailing cable 16, the lockout mechanism at cliding seat 8 place is unlocked, thus cliding seat 8 can be made to move by opposing rear wheels support 9, as shown in Figure 9, cliding seat 8 opposing rear wheels support 9 moves towards wheel assembly 10, meanwhile, push rod 6, side handrail 4, lining bar assembly 3, front-wheel support 2 and rear wheel support 9 all relatively rotate, and the angle between front-wheel support 2 and rear wheel support 9 is diminished, and final gathering in is collapse state as shown in Figure 10.
Refer again to Fig. 1, this lining bar assembly 3 may be used for supporting parts such as placing seat.This foldable wheelbarrow also can comprise the fixed link 7 being combined with push rod 6 and arranging, and this fixed link 7 can strengthen the intensity of dependency structure.Also can in conjunction with other structures such as the moving bar pieces arranged for supporting sunshade block cloth on this fixed link 7.Understandably, according to the embody rule environment of this foldable wheelbarrow, other functors comprised in existing foldable wheelbarrow can be had, do not enumerate at this.
The utility model is done to improve further with the lockout mechanism of rear wheel support 9 for this cliding seat 8 of locking, more easy to make the folder function of this foldable wheelbarrow realize, and this lockout mechanism also has the simple advantage of structure, makes the cheap for manufacturing cost of foldable wheelbarrow.Rear wheel support 9 has and two of wheel assembly 10 poles that trailing wheel is connected respectively, be appreciated that lockout mechanism all has setting on two poles in certain embodiments, and structure is identical.Below by composition graphs 4, Fig. 5, Fig. 6 and Fig. 7 elaborate to the lockout mechanism on one of them pole again.
As shown in Figure 4, on this rear wheel support 9, elasticity is embedded a stop pin 13.This stop pin 13 is arranged on this rear wheel support 9 by a return springs, and by the elastic force that return springs provides, this stop pin 13 part can be kept to extend out to outside rear wheel support 9, and stretch in the cliding seat 8 that is set on rear wheel support 9, with the movement of limit slippage seat 8 opposing rear wheels support 9.
In one embodiment, this return springs is a spring 12, and is set on this stop pin 13.The side inwall at rear wheel support 9 is supported in this spring 12 one end, and the other end then provides elastic force that stop pin 13 is extend out to outside rear wheel support 9 by the through hole 91 that the opposite side inwall of rear wheel support 9 is offered.Being appreciated that in certain embodiments, also making stop pin 13 not making stop pin 13 extend out to outside rear wheel support 9 by the elastic force that can be provided by this return springs during other External force interferences, for locking cliding seat 8 by arranging other return springs such as torsion spring.
In one embodiment, this stop pin 13 one end is large, and one end is little, and small end can be stretched out from through hole 91, and makes large end be fastened on through hole 91 place to prevent stop pin 13 and rear wheel support 9 from departing from.Be appreciated that in certain embodiments, also by arranging groove on stop pin 13, then the components such as positioning plate be set in groove combination, prevent stop pin 13 and rear wheel support 9 from departing from.
In one embodiment, arrange stop pin permanent seat 11 in described rear wheel support 9, described stop pin 13 is arranged in this stop pin permanent seat 11.Such as, can, by arranging suitable accepting hole in stop pin permanent seat 11, this stop pin 13 be made to be placed in this accepting hole, with the moving line of limiting lock rationed marketing 13, make the motion of stop pin 13 more meet given requirements, make stop pin 13 more accurate with coordinating of cliding seat 8.Be appreciated that in other some embodiments, this stop pin 13 also carrys out alternative described stop pin permanent seat 11 by changing the internal structure of rear wheel support 9 own, with the installation site of limiting lock rationed marketing 13 and moving line, reach the requirement improving and coordinate accuracy rate.
Simultaneously with reference to figure 4 and Fig. 6, in described cliding seat 8, be provided with the sliding surface 81 relative with rear wheel support 9, described sliding surface 81 arranged the perforation 82 penetrated for stop pin 13.This sliding surface 81 can be used as cliding seat 8 and the contact surface of rear wheel support 9 when relative motion, also can only as when cliding seat 91 opposing rear wheels support 9 moves, and this stop pin 13 supports a support surface of cliding seat 8.
In one embodiment, also rotate in this cliding seat 8 and arrange roller 15, the rolling surface of described roller 15 protrudes from described sliding surface 81.Therefore, when described cliding seat 8 moves on rear wheel support 9, the rolling surface of described roller 15 is because contacting with rear wheel support 9 closer to rear wheel support 9, so can reduce the friction force between cliding seat 8 and rear wheel support 9, make the movement of cliding seat 8 more easy, with folding and expansion of this facility folding formula go-cart.The height that the rolling surface of described roller 15 protrudes from described sliding surface 81 is unsuitable excessive, prevents stop pin 13 from cannot go beyond when through this roller 15, or the obstacle met with when going beyond is too large.Such as, can 1-2mm be exceeded, or better, within can 1mm being exceeded, only slightly can exceed described sliding surface 81 can be converted into roller 15 opposing rear wheels support 9 rolling by the translation of the sliding surface 81 opposing rear wheels support 9 of cliding seat 8.
Please also refer to Fig. 4, Fig. 5 and Fig. 6, in cliding seat 8, elastic rotation arranges a unlock piece 17.This unlock piece 17 is connected with trailing cable 16, and by operation knob 5, drives the trailing cable 16 be connected with knob 5, can drive the rotation of unlock piece 17.
The elastic rotation of unlock piece 17 in cliding seat 8 is arranged can be reached by an elastic reset part.In one embodiment, this elastic reset part is a spring 121, and is combined with spring 121 and is provided with a spring set pin 18, and this spring 121 is set on spring set pin 18, and spring set pin 18 is located in a through hole 172 of setting on unlock piece 17, and be fixed on cliding seat 8.This unlock piece 17 has a turning cylinder 173, and this turning cylinder 173 and cliding seat 8 pivot joint, make unlock piece 17 can rotate around this turning cylinder 173.And spring 121 is arranged in the rotation circumference of unlock piece 17, the elastic force that spring 121 is provided can be unlock piece 17 rotation in the circumferential and provides external force.The rotational plane of unlock piece 17 is parallel with above-mentioned sliding surface 81.
Described unlock piece 17 has the inclined-plane 171 for supporting stop pin 13.Please also refer to Fig. 7, the elastic force that this spring 121 provides can make unlock piece 17 turn to relevant position, and this position is namely as unlocked in Fig. 7 shown in front state, and this inclined-plane 171 does not act on this stop pin 13.That is, when being in state before unblock, stop pin 13 is not subject to the effect of unlock piece 17, stop pin 13 relies on the elastic force of spring 12 to reach outside rear wheel support 9, and engage with cliding seat 8, specifically in one embodiment, namely stretch in the perforation 82 on the sliding surface 81 being fastened on cliding seat 8 as shown in Figure 4, cliding seat 8 can not be moved by opposing rear wheels support 9.
As shown in state after the unblock in Fig. 7, after unlock piece 17 is subject to the traction of trailing cable 16, unlock piece 17 overcomes the elastic force of spring 121, and the moving axis 173 that rotates rotates, in the process, stop pin 13 will be supported in inclined-plane 171, after overcoming the elastic force that the spring 12 on stop pin 13 provides, stop pin 13 heads in rear wheel support 9 the most at last, makes stop pin 13 and cliding seat 8 depart from thus, thus cliding seat 8 can be moved by opposing rear wheels support 9, thus can realize folding of foldable wheelbarrow.
As shown in fig. 4 and fig. 6, an elastic block piece 14 is also set, for supporting with unlock piece 17 elasticity in described cliding seat 8.When unlock piece 17 does not draw by trailing cable 16, described unlock piece 17 relies on the elastic force of spring 121 to be placed in the position supported with elastic block piece 14, the position of unlock piece 17 can be made fixing more firm, avoid the uncertain factors such as outgoing is accidental to touch unlock piece 17.When trailing cable 16 affects unlock piece 17 to rotate, the elastic force needing the elasticity simultaneously overcoming elastic block piece 14 to support power and spring 121 to provide, just can make unlock piece 17 arrive unlocked position and trigger stop pin 13 to be retracted in rear wheel support 9.
Described knob 5 can be arranged on the correct position of this foldable wheelbarrow, is convenient to user's operation.In one embodiment, as shown in Figure 5 and Figure 6, this knob 5 is arranged on push rod 6, particularly, is arranged on the center of top of this push rod 6.
After described trailing cable 16 is connected with unlock piece 17, interts to be connected with described knob 5 in push rod 6 through described cliding seat 8.This trailing cable 16 comprises the first end 16a for being connected with knob 5, the second end 16d be connected with unlock piece 17, and the base portion 16b between first end, the second end.This base portion 16b arranges push rod 6 by cavitation and in the interspersed extension in push rod 6 inside, to avoid trailing cable 16 to expose, had both improved aesthetics, and also can promote safety performance.This trailing cable 16 also arranges a noose 16c in cliding seat 8 place, and noose 16c is fixedly connected with cliding seat 8, and combines the perforation 8a place being arranged on cliding seat 8, and this trailing cable 16 passes from cliding seat 8 thus through noose 16c.
As shown in Fig. 2, Fig. 8, Fig. 9 and Figure 10, on described rear wheel support 9, also elasticity is embedded another stop pin 13a, and this stop pin 13a is used for being fixed by described cliding seat 8 opposing rear wheels support 9 when this foldable wheelbarrow is in collapse state.Make when collapse state thus, cliding seat 8 can not arbitrarily move along rear wheel support 9, ensures the stability of collapse state.Described stop pin 13a can be identical with stop pin 13 structure in the various embodiments described above, so arranges two stop pins 13,13a, can be respectively used to be fixed by described cliding seat 8 opposing rear wheels support 9 when this foldable wheelbarrow is in deployed condition and collapse state.
Further, as shown in fig. 4 and fig. 6, the two ends of the sliding surface 81 of described cliding seat 8 are obliquely installed to form guide surface 83.This guide surface 83 can fold with the process launched at foldable wheelbarrow, when cliding seat 8 moves along rear wheel support 9, can make stop pin 13 easily, 13a snaps in in cliding seat 8, complete folding and expansion of this foldable wheelbarrow.Being appreciated that in some other embodiment, also by changing the structure arranging stop pin, stop pin more easily being accommodated in cliding seat 8.
Below the expansion of brief description the utility model foldable wheelbarrow and the implementation procedure that folds again.When foldable wheelbarrow is in deployed condition as shown in Figure 8, by operation knob 5, affect trailing cable 16, unlock piece 17 is rotated, utilizes the inclined-plane 171 of unlock piece 17 to support stop pin 13 on rear wheel support 9, make stop pin 13 be retracted in rear wheel support 9 and depart from cliding seat 8, cliding seat 8 opposing rear wheels support 9 can be made thus to move, and as shown in figs. 9 and 10, cliding seat 8 is fixed, to complete the process of folding by another stop pin 13a successively.
When foldable wheelbarrow is in collapse state as shown in Figure 10, same by operation knob 5, affect trailing cable 16, unlock piece 17 is rotated, the inclined-plane 171 of unlock piece 17 is utilized to support stop pin 13a on rear wheel support 9, stop pin 13a is made to be retracted in rear wheel support 9 and to depart from cliding seat 8, cliding seat 8 opposing rear wheels support 9 can be made thus to move, contrary with the direction of cliding seat when folding 8 relative movement when only launching, and successively as shown in Fig. 9 and Fig. 8, finally locked pin 13 is fixing, to complete expansion process to make cliding seat 8.
The utility model forms an inclined-plane 171 by arranging unlock piece 17, only needing force to rotate unlock piece 17 can by stop pin 13, the latch-release of 13a, can move by opposing rear wheels support 9 to make cliding seat 8, thus complete the process folding or launch of needs, implement very convenient, this latch-up structure is also very simple.
The utility model also arranges two road lockout mechanisms at knob 5 place, and the locking to knob 5 by this two roads lockout mechanism lockable knob 5 and releasing, prevents false triggering knob 5 and make the state of foldable wheelbarrow that change beyong contemplation occur.
Yin Gai bis-road lockout mechanism is combined with knob 5 and arranges, and therefore in one embodiment, as shown in Figure 5, this two roads lockout mechanism is arranged on the center of top place of push rod 6.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be noted that; for the person of ordinary skill of the art, without departing from the concept of the premise utility, some distortion and improvement can also be made; as combined etc. the different characteristic in each embodiment, these all belong to protection domain of the present utility model.
Claims (9)
1. a foldable wheelbarrow, comprise front component, wheel assembly, front-wheel support, rear wheel support, lining bar assembly, side handrail, cliding seat and push rod, front component is connected on front-wheel support, wheel assembly is connected on rear wheel support, it is characterized in that: sliding base sleeve is located on rear wheel support, lining bar assembly and front-wheel support, cliding seat is all rotationally connected, push rod and side handrail, cliding seat is all rotationally connected, side handrail simultaneously also with front-wheel support, rear wheel support is rotationally connected, this foldable wheelbarrow also comprises elasticity and is embedded the stop pin on rear wheel support, elastic rotation is arranged on the unlock piece in cliding seat, the trailing cable be connected with unlock piece, and the knob to be connected with trailing cable, described stop pin is for stretch in cliding seat thus cliding seat is fixed on rear wheel support, described unlock piece has the inclined-plane for supporting stop pin, and when unlock piece rotates, stop pin to head in rear wheel support thus makes cliding seat can opposing rear wheels support-moving by described inclined-plane.
2. foldable wheelbarrow as claimed in claim 1, is characterized in that: be provided with the sliding surface relative with rear wheel support in described cliding seat, described sliding surface is arranged the perforation penetrated for stop pin.
3. foldable wheelbarrow as claimed in claim 2, is characterized in that: the two ends of described sliding surface are obliquely installed to form guide surface.
4. foldable wheelbarrow as claimed in claim 2, it is characterized in that: arrange roller in described cliding seat, the rolling surface of described roller protrudes from described sliding surface.
5. foldable wheelbarrow as claimed in claim 2, is characterized in that: described sliding surface is parallel with the rotational plane of described unlock piece.
6. foldable wheelbarrow as claimed in claim 1, is characterized in that: arrange elastic block piece in described cliding seat, for supporting with unlock piece elasticity.
7. foldable wheelbarrow as claimed in claim 1, it is characterized in that: arrange stop pin permanent seat in described rear wheel support, described stop pin is arranged in this stop pin permanent seat.
8. foldable wheelbarrow as claimed in claim 1, is characterized in that: described knob is arranged on push rod, after described trailing cable is connected with unlock piece, interts to be connected with described knob in push rod through described cliding seat.
9. as the foldable wheelbarrow in claim 1-8 item as described in any one, it is characterized in that: on described rear wheel support, also elasticity is embedded another stop pin, described stop pin is identical with another locking pin structure described, and is respectively used to be fixed by described cliding seat opposing rear wheels support when this foldable wheelbarrow is in deployed condition and collapse state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548291.3U CN204196969U (en) | 2014-09-23 | 2014-09-23 | Foldable wheelbarrow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548291.3U CN204196969U (en) | 2014-09-23 | 2014-09-23 | Foldable wheelbarrow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204196969U true CN204196969U (en) | 2015-03-11 |
Family
ID=52654957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420548291.3U Active CN204196969U (en) | 2014-09-23 | 2014-09-23 | Foldable wheelbarrow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204196969U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019242048A1 (en) * | 2018-06-22 | 2019-12-26 | 中山市金亮儿童用品有限公司 | Baby stroller frame capable of being automatically folded |
| US10882546B2 (en) | 2018-03-07 | 2021-01-05 | Zhongshan Kingmoon Children Products Co. Ltd. | Stroller |
| CN112205819A (en) * | 2020-10-30 | 2021-01-12 | 上海大阿福童车有限责任公司 | Support frame and crib |
-
2014
- 2014-09-23 CN CN201420548291.3U patent/CN204196969U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10882546B2 (en) | 2018-03-07 | 2021-01-05 | Zhongshan Kingmoon Children Products Co. Ltd. | Stroller |
| WO2019242048A1 (en) * | 2018-06-22 | 2019-12-26 | 中山市金亮儿童用品有限公司 | Baby stroller frame capable of being automatically folded |
| CN112205819A (en) * | 2020-10-30 | 2021-01-12 | 上海大阿福童车有限责任公司 | Support frame and crib |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |