CN202911769U

CN202911769U - Handcart folding mechanism

Info

Publication number: CN202911769U
Application number: CN 201220541495
Authority: CN
Inventors: 李从道
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-10-22
Filing date: 2012-10-22
Publication date: 2013-05-01
Anticipated expiration: 2022-10-22

Abstract

The utility model discloses a handcart folding mechanism. A handcart at least comprises a front wheel set and a rear wheel set, the folding mechanism comprises a connecting rod, a first connecting rod, a second connecting rod, a carrier, a front rod, a bottom connecting rod and a folding control mechanism, the connecting rod is connected between the front wheel set and the rear wheel set, one end of the first connecting rod and one end of the second connecting rod are respectively hinged to the connecting rod, the carrier is hinged to the other end of the first connecting rod, the front rod is hinged to the other end of the second connecting rod, the bottom connecting rod is hinged to the bottom end of the front rod, the carrier is hinged to the front rod, the other end of the bottom connecting rod is hinged to the connecting rod or a shaft lever in the front wheel set, and the folding control mechanism controls and keeps a folding state after the front rod, the carrier, the first connecting rod, the second connecting rod and the bottom connecting rod are linked and folded together. The handcart folding mechanism is provided with the folding control mechanism, so that the handcart is more convenient to fold and carry. The folding mechanism can be conveniently controlled by the aid of keys, a body can be folded, a handcart handle can also be folded, and space can be furthest saved.

Description

The hand barrow fold mechanism

Technical field

The utility model relates to a kind of hand barrow, especially relates to the hand barrow fold mechanism.

Background technology

Hand barrow can be placed seat, hand basket or automobile seat at skeleton, is mainly used in taking or placing articles for the child.Existing handcart frame includes vehicle frame, front-wheel connecting rod, front bar and handgrip, the front-wheel connecting rod is equipped with front wheels, rear bottom of frame is equipped with rear wheels, and the front-wheel connecting rod is connected by bottom bar with rear vehicle frame, can with handgrip and front vehicle frame backward vehicle frame rotate and fold.But there is folding inconvenient problem in these fold mechanisms.For a long time, how folding hand barrow, folding opening conveniently so that carry, is the hand barrow industry, the problem that all the time will solve.

The utility model content

For the deficiency that prior art exists, the utility model provides a kind of hand barrow fold mechanism that can car body is folding.

The utility model adopts following technical scheme to realize: a kind of hand barrow fold mechanism, and described hand barrow comprises at least: front wheels; Rear wheels; Described fold mechanism comprises: be connected to the pipe link between front wheels and the rear wheels; One end is first connecting rod, the second connecting rod hinged with pipe link respectively, the luggage carrier hinged with the first connecting rod other end, the front bar hinged with the second connecting rod other end, the end connecting rod hinged with its bottom of front bar, luggage carrier and front bar are hinged, the end connecting rod other end and pipe link is hinged or hinged with the axostylus axostyle in the front wheels; Also comprise front bar, luggage carrier, first connecting rod, second connecting rod, end connecting rod together interlock folding after, control keeps the folding control mechanism of folded state.

Wherein, described folding control mechanism is by the hook groove of being located on the second connecting rod, and can consist of by hook spare movable, that can hook described hook groove.

Wherein, its inner hollow of described front bar, front bar is provided with pull bar in its inside, and hook spare is located at pull bar one end, and hook spare stretches out the external world from an opening being located at the front bar outer wall, and the pull bar other end and handle are connected together, and handle exposes to outside the front bar.

Wherein, folding control mechanism also comprises button, and button is connected with the interlock bar, and described handle is provided with and can allows the interlock bar stretch into and then make the movable sliding tray of handle energy after the interlock bar moves.

Wherein, described pipe link is provided with bearing, and described first connecting rod one end is hinged by described bearing and pipe link, and described second connecting rod one end is hinged by described bearing and pipe link.

Wherein, described bearing is provided with mobilizable inserts, and inserts is provided with semicircle groove, and front bar is provided with the part that stretches into that embeds described semicircle groove after the front bar activity.

Wherein, be provided with elastic component between bearing and the inserts.

Wherein, front bar is provided with and can limits the hand-pushing handle rotational angle and realize the rotation controling mechanism that hand-pushing handle is folding.

Wherein, rotation controling mechanism is made of with the locating part of being located on the hand-pushing handle mobilizable hand-pushing handle handle, and described locating part is provided with the projection that contacts and can limit the hand-pushing handle rotation with the hand-pushing handle handle.

Compared with prior art, the utlity model has following beneficial effect:

The utility model fold mechanism is provided with folding control mechanism, make the together folding rear locking folded state that keeps of interlock of front bar, luggage carrier, first connecting rod, second connecting rod, end connecting rod, after the folding control mechanism activity, front bar, luggage carrier, first connecting rod, second connecting rod, end connecting rod just can open the recurrence normal condition, make the hand push machine fold, carry convenient.Be provided with button and can conveniently control fold mechanism.The utility model main body can fold, and hand-pushing handle also can fold, to greatest extent conserve space.

Description of drawings

Fig. 1, Fig. 2 are the perspective view of the different visions of hand barrow;

Fig. 3, Fig. 4 are the perspective view of the different folded states of hand barrow;

Fig. 5, Fig. 6, Fig. 7 are the structural representation of hand barrow under part parts decomposing state.

The specific embodiment

In conjunction with Fig. 1, Fig. 2 and Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, the hand barrow that the utility model proposes comprises: front wheels; Rear wheels; Described fold mechanism comprises: be connected to the pipe link 1 between front wheels and the rear wheels; One end is first connecting rod 2, the second connecting rod 3 hinged with pipe link 1 respectively, the luggage carrier 6 hinged with first connecting rod 1 other end, the front bar 4 hinged with second connecting rod 3 other ends, the end connecting rod 5 hinged with front bar 4 its bottoms, luggage carrier 6 is hinged with front bar 4, and end connecting rod 5 other ends and pipe link 1 are hinged or hinged with the axostylus axostyle 7 in the rear wheels; Also comprise front bar 4, luggage carrier 6, first connecting rod 2, second connecting rod 3, end connecting rod 5 together interlock folding after, control keeps the folding control mechanism of folded state.

Described folding control mechanism consists of by being located at second connecting rod 3 groove 8 of rising to the bait, and can be movable, and the hook spare 9 that can hook described hook groove 8 after front bar 4, luggage carrier 6, first connecting rod 2, second connecting rod 3, end connecting rod 5 together interlock are folding consists of.Described front bar 4 its inner hollow, front bar is provided with pull bar 10 in 4 its inside, and hook spare 9 is located at pull bar 10 1 ends, and hook spare 9 stretches out the external world from an opening being located at front bar 4 outer walls, and pull bar 10 other ends are connected together with handle 11, and handle 11 exposes to outside the front bar 4.Handle 11 can be located at the place of convenient control like this.

Folding control mechanism also comprises button 13, and button 13 is connected with interlock bar 15, and described handle 11 is provided with and can allows interlock bar 15 stretch into after interlock bar 15 moves, and then makes the movable sliding tray 16 of handle 11 energy.Like this, only have button 13 after pulling on one side, interlock bar 15 could be aimed at sliding tray 16, and interlock bar 15 just can stretch into sliding tray 16, just can make handle 11 avoid stopping of interlock bar 15, and handle 11 could be spurred by external force.

Hand-pushing handle 12 is installed in the shell of shell 141, shell 142 formations, front bar 4 is provided with and can limits hand-pushing handle 12 rotational angles and realize the rotation controling mechanism that hand-pushing handle 12 is folding, described rotation controling mechanism by mobilizable hand-pushing handle handle 19 be located at hand-pushing handle 12 upper limit spares 14 and consist of, described locating part 14 is provided with hand-pushing handle handle 19 and contact the projection that can limit hand-pushing handle 12 rotations.After 19 pullings of hand-pushing handle handle, hand-pushing handle 12 could rotate, and could fold hand-pushing handle 12.

Wherein, pipe link 1 is provided with bearing 17, and described first connecting rod 2 one ends and described bearing 17 are hinged, and described second connecting rod 3 one ends and described bearing 17 are hinged.

Wherein, bearing 17 is provided with mobilizable inserts 18, and inserts 18 is provided with semicircle groove, and front bar 4 is provided with the part that stretches into of after front bar 4 the is opened described semicircle groove of embedding.After hand barrow is opened, stretch into part and be embedded in the semicircle groove.17 of inserts 18 and bearings are provided with spring, can play reset response.

Such as Fig. 3, when Fig. 4 needs Folding trolley, movable to one side button 13, handle can be to avoiding stopping of interlock bar 15 like this, can be upwards movable, at this moment can upwards draw handle 11, handle 11 drives pull bar 10 past risings the with its interlock, this moment, pull bar 10 bottoms impelled the part that stretches on the front bar 4 to break away from semicircle groove on the inserts 18, with front bar 4 past pressing down, by front bar 4, luggage carrier 6, first connecting rod 2, second connecting rod 3, end connecting rod 5 together interlock folding after, hook spare 9 hooks in hook groove 8, then spurs hand-pushing handle handle 19, rotate hand-pushing handle 12, so just realized the folded state of hand barrow.

The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.　　

Claims

1. hand barrow fold mechanism, described hand barrow comprises at least: front wheels; Rear wheels; It is characterized in that described fold mechanism comprises: be connected to the pipe link between front wheels and the rear wheels; One end is first connecting rod, the second connecting rod hinged with pipe link respectively, the luggage carrier hinged with the first connecting rod other end, the front bar hinged with the second connecting rod other end, the end connecting rod hinged with its bottom of front bar, luggage carrier and front bar are hinged, the end connecting rod other end and pipe link is hinged or hinged with the axostylus axostyle in the front wheels; Also comprise front bar, luggage carrier, first connecting rod, second connecting rod, end connecting rod together interlock folding after, control keeps the folding control mechanism of folded state.

2. described hand barrow fold mechanism according to claim 1 is characterized in that, described folding control mechanism is by the hook groove of being located on the second connecting rod, and can consist of by hook spare movable, that can hook described hook groove.

3. described hand barrow fold mechanism according to claim 2, it is characterized in that, its inner hollow of described front bar, front bar is provided with pull bar in its inside, hook spare is located at pull bar one end, hook spare stretches out the external world from an opening being located at the front bar outer wall, the pull bar other end and handle are connected together, and handle exposes to outside the front bar.

4. described hand barrow fold mechanism according to claim 3 is characterized in that folding control mechanism also comprises button, and button is connected with the interlock bar, and described handle is provided with and can allows the interlock bar stretch into and then make the handle can movable sliding tray after the interlock bar moves.

5. described hand barrow fold mechanism according to claim 1 is characterized in that described pipe link is provided with bearing, and described first connecting rod one end is hinged by described bearing and pipe link, described second connecting rod one end pass through described bearing and pipe link hinged.

6. described hand barrow fold mechanism according to claim 5 is characterized in that described bearing is provided with mobilizable inserts, and inserts is provided with semicircle groove, and front bar is provided with the part that stretches into that embeds described semicircle groove after the front bar activity.

7. described hand barrow fold mechanism according to claim 6 is characterized in that, is provided with elastic component between bearing and the inserts.

8. described hand barrow fold mechanism according to claim 1 is characterized in that, front bar is provided with and can limits the hand-pushing handle rotational angle and realize the rotation controling mechanism that hand-pushing handle is folding.

9. described hand barrow fold mechanism according to claim 8, it is characterized in that, rotation controling mechanism is made of with the locating part of being located on the hand-pushing handle mobilizable hand-pushing handle handle, and described locating part is provided with the projection that contacts and can limit the hand-pushing handle rotation with the hand-pushing handle handle.