CN206031424U - Many joints are folding pulls a cart - Google Patents

Abstract

The utility model discloses a many joints are folding pulls a cart belongs to a goods delivery vehicle, and it includes pull rod, carrier and wheel, and the carrier is articulated in proper order from top to bottom by first pull rod and second pull rod and is formed by first goods shelves, second goods shelves and third goods shelves front and back articulated forming in proper order, pull rod, and the second pull rod is articulated with first goods shelves, the first pull rod collapsible rear side at the second pull rod that overturns backward, second pull rod overturn backward again, and collapsible first pull rod is located between the two in the top of first goods shelves, and the other end, third goods shelves overturn collapsiblely in the below of second goods shelves downwards, and be last, and first goods shelves overturn downwards, and collapsible the third goods shelves are located between the two in the below of second goods shelves, and fold condition is second goods shelves, third goods shelves, first goods shelves, second pull rod, first pull rod from the top down in proper order. The utility model discloses carrying capacity is big, and foldamer is long -pending little, convenient to carry, and light in weight, and intensity is high, convenient to use.

Description

Multi-joint is folded and is pulled a cart

Technical field

This utility model is related to a kind of goods delivery means, more particularly to a kind of multi-joint is folded and pulled a cart.

Background technology

Hand buggy be live and produce in common vehicle, be widely used in the transport of luggage and goods.Existing handss Pull a cart generally to be made up of platform body, handle and four wheels, in order to load more goods, platform body generally all compares It is long, and for the hand steered height for coordinating human body to be accustomed to, shake hands generally also higher, therefore these hand buggys take up room greatly, no Beneficial to storage, also not Portable belt, increases difficulty and the cost of transport.

Also there are some folding hand buggys on market, but be generally only that handle is folded with platform body, or will be flat Wooden handcart status is folded into two sections, and miscellaneous part can not coordinate folding, the low space utilization of overall folding, folding well The volume of poststack is still very big, carries inconvenient.

Utility model content

Technical problem to be solved in the utility model is to overcome the problems referred to above, and it is little, square to provide a kind of folding volume Just the multi-joint folding for receiving carrying is pulled a cart.

The technical solution of the utility model is：

A kind of multi-joint is folded and is pulled a cart, and the luggage carrier that is connected with pull bar lower end including pull bar and is arranged under luggage carrier The wheel of side, it is characterised in that：The luggage carrier by being hinged successively and form before and after three section shelf, respectively the first shelf, second Shelf and the 3rd shelf, the pull bar are hinged successively up and down and are formed by two section pull bars, respectively the first pull bar and the second pull bar, the Two pull bars are hinged with the first shelf.

First pull bar is turned over and may be folded on the rear side of the second pull bar；Second pull bar is turned over again and may be folded on first The top of shelf, the first pull bar are located between the two；The other end, the 3rd shelf are downwardly turned over and be may be folded under the second shelf Side；Finally, the first shelf downwardly turn over the lower section that may be folded on the second shelf, and the 3rd shelf are located between the two；Folded state The second shelf, the 3rd shelf, the first shelf, the first pull bar, the second pull bar is followed successively by from the top down.

In above-mentioned multi-joint folding is pulled a cart, three section shelf of the luggage carrier are set in parallel in both sides including two Vertical pole and two cross bars being connected in parallel between two vertical poles, the first shelf and the second shelf, the second shelf and the 3rd shelf Vertical pole between being hinged between shelf is connected up to by hinge A and hinge B respectively；Second pull bar include two it is parallel The montant two of both sides is arranged on, the first pull bar includes two montants one of two montants one for being set in parallel in both sides and vertical connection Crossbeam, is connected up to being hinged between pull bar by hinge C between montant one and montant two；The vertical pole of first shelf with it is perpendicular Being hinged between the first shelf and the second pull bar is connected up to by hinge D between bar two.

In above-mentioned multi-joint folding is pulled a cart, the wheel includes two front-wheels and peace below the first shelf Two trailing wheels being mounted in below the 3rd shelf, described two front wheels and rear wheels be separately mounted to the first shelf, the 3rd shelf it is vertical On the inside of bar, and it is located between two cross bars, the distance that front-wheel is stretched out to direction on the inside of vertical pole is folded more than the distance that trailing wheel stretches out When trailing wheel and front-wheel folded between two cross bars of the second shelf successively.

In above-mentioned multi-joint folding is pulled a cart, the opening angle of the hinge A and hinge B is directed downward, and maximum angle is 180 degree, causes the vertical pole and cross bar of three section shelf to constitute loading plane after fully opening；The opening angular direction of hinge C backwards, most Wide-angle is 180 degree, causes two section pull bars to constitute complete pull bar after fully opening；The opening angle of hinge D towards back upper place, most Wide-angle is 90～120 degree, so that pull bar is vertical with luggage carrier or in obtuse angle after fully opening.

In above-mentioned multi-joint is folded and pulled a cart, the rotation axiss of the hinge A to the vertical dimension on vertical pole surface are vertical The 1/2 of bar thickness, the rotation axiss of hinge B are zero to the vertical dimension on vertical pole surface, the rotation axiss of hinge C to montant one, The vertical dimension on two surface of montant is zero, and the rotation axiss of hinge D are to the distance on the first shelf vertical pole surface and to two table of montant Face apart from sum for montant one thickness.

In above-mentioned multi-joint folding is pulled a cart, the front-wheel is universal wheel, and trailing wheel is directional wheel.

In above-mentioned multi-joint folding is pulled a cart, the vertical pole, cross bar, montant one, montant two are made by square pipe, The hinge is stamping, is welded on the part connected by which.

The beneficial effects of the utility model are：

1st, entirely pulled a cart to be divided into five segment structures and folded, luggage carrier long enough when fully opening can be loaded more Goods, after folding be plate-like stepped construction, volume very little, particularly length be about rack published originally 1/3, take up room little, It is easy to carry.

When the 2nd, folding, front and rear wheel is just folded at the neutral gear between cross bar, is improve space availability ratio, is further reduced Volume after folding.

3rd, the hinge opening angle that connection three saves shelf is directed downward, and maximum angle is 180 degree, therefore can after luggage carrier is opened Automatically flatten by goods weight, and without locking structure, it is easy to use.

4th, agent structure adopts tubing, and hinge adopts stamping, and utilizes welding procedure, makes overall weight light, and intensity is high.

Description of the drawings

Open mode structure charts of the Fig. 1 for this utility model embodiment.

Folded state structure charts of the Fig. 2 for this utility model embodiment.

Structural representations of the Fig. 3 for hinge B.

The structural representation of Fig. 4 positions hinge D.

Specific embodiment

This utility model is further described in conjunction with drawings and Examples：

In description of the present utility model, it is to be understood that " on ", the side of D score, " horizontal stroke ", " erecting " etc. indicated by term Position or position relationship are, based on orientation shown in the drawings or position relationship, to be for only for ease of description this utility model, rather than Indicate or imply that the device or original paper of indication there must be specific orientation, therefore it is not intended that to limit of the present utility model System.

As depicted in figs. 1 and 2, the multi-joint of the present embodiment is folded and is pulled a cart, including the load that pull bar is connected with pull bar lower end Rack and the wheel below luggage carrier.Luggage carrier is hinged before and after saving shelf by three successively and forms, respectively the first shelf 21st, the second shelf 22 and the 3rd shelf 23, pull bar are hinged successively up and down and are formed by two section pull bars, respectively the first pull bar 11 and the Two pull bars 12, the second pull bar 12 are hinged with the first shelf 21.

According to above-mentioned structure, the first pull bar 11 is turned over and may be folded on the rear side of the second pull bar 12, the second pull bar 12 Turn over again and may be folded on the top of the first shelf 21, the first pull bar 11 is located between the two, the other end, the 3rd shelf 23 to Lower to overturn the lower section that may be folded on the second shelf 22, finally, the first shelf 21 are downwardly turned over and be may be folded under the second shelf 22 Side, the 3rd shelf 23 are located between the two, and folded state is followed successively by the second shelf 22, the 3rd shelf 23, the first goods from the top down Frame 21, the first pull bar 11, the second pull bar 12.

Such structure is entirely to be pulled a cart to be divided into five segment structures to be folded, luggage carrier long enough when fully opening, energy More goods is enough loaded, is plate-like stepped construction after folding, volume very little, particularly length are about the 1/3 of rack published originally, account for It is little with space, it is easy to carry.

For realizing above-mentioned folder function, specific structure is as follows：

Three section shelf of luggage carrier are connected in parallel at two including two vertical poles 201 for being set in parallel in both sides and two and indulge Cross bar 202 between bar 201, between the first shelf 21 and the second shelf 22, the second shelf 22 and the vertical pole 201 of the 3rd shelf 23 Being hinged between shelf is connected up to by hinge A41 and hinge B42 respectively.The opening angular direction court of hinge A41 and hinge B42 Under, maximum angle is 180 degree, causes the vertical pole 201 and cross bar 202 of three section shelf to constitute loading plane after fully opening.

Second pull bar 12 includes two montants 2 121 for being set in parallel in both sides, and the first pull bar 11 includes that two parallel set The crossbeam 112 of two montants 1 of montant 1 and vertical connection in both sides is put, is led between montant 1 and montant 2 121 Cross hinge C43 and be connected up to being hinged between pull bar.Backwards, maximum angle is 180 degree, completely for the opening angular direction of hinge C43 Two section pull bars are caused to constitute complete pull bar after opening.

First shelf 21 and second are connected up to by hinge D44 between the vertical pole 201 and montant 2 121 of the first shelf 21 Being hinged between pull bar 12.The opening angle of hinge D44 is 90～120 degree towards back upper place, maximum angle, is caused after fully opening Pull bar is vertical with luggage carrier or in obtuse angle.

Wheel includes two front-wheels 31 below the first shelf 21 and two below the 3rd shelf 23 Trailing wheel 32, wherein, front-wheel 31 is universal wheel, and trailing wheel 32 is directional wheel.Two front-wheels 31 and trailing wheel 32 are separately mounted to the first goods On the inside of frame 21, the vertical pole 201 of the 3rd shelf 23, and it is located between two cross bars 202, front-wheel 31 is stretched to 201 inner side direction of vertical pole During the distance that the distance for going out is stretched out more than trailing wheel 32, so folding, front and rear wheel just staggers, trailing wheel 32 and front-wheel 31 fold successively into At neutral between two cross bars 202 of the second shelf 22, space availability ratio is improve, reduce the volume after folding.

In the multi-joint is folded and is pulled a cart, the structure of hinge be it is specially designed, it is specific as follows：

The vertical dimension of the rotation axiss of hinge C43 to montant 1,2 121 surface of montant is zero, such first pull bar 11 turn over gapless can be folded in the rear side of the second pull bar 12；The rotation axiss of hinge D44 are to 21 vertical pole of the first shelf The distance on 201 surfaces with to 2 121 surface of montant apart from sum for montant 1 thickness, such second pull bar 12 again to When upset is folded in the top of the first shelf 21 afterwards, the space for accommodating the first pull bar 11 can be reserved.In the same manner, the rotation of hinge B42 The vertical dimension on axis to 201 surface of vertical pole is zero, and such 3rd shelf 23 are downwardly turned over and gapless can be folded in the second goods The lower section of frame 22, and the rotation axiss of hinge A41 to 201 surface of vertical pole vertical dimension for 201 thickness of vertical pole 1/2, so First shelf 21 are downwardly turned over when being folded in the second 22 lower section of shelf, and the distance of the second shelf of distance 22 is the thickness of vertical pole 201, The space for accommodating the 3rd shelf 23 is reserved just.By such hinge arrangement, the volume that can be allowed after pulling a cart to fold is less.

Above-mentioned hinge A41, hinge B42, hinge C43, hinge D44 include two connectors 50, such as Fig. 3 and Fig. 4 institutes Show, by taking hinge B42 and hinge D44 as an example, two connectors 50 are constituted by fixed part 51 and articulated section 52, fixed part 51 and quilt Junctional complex is fixed, and articulated section 52 is interlaced and is respectively provided with a corresponding axis hole 53, and the axis hole 53 can just provide an axostylus axostyle（Figure In be not drawn into）Wear string, two connectors 50 are articulated so that two connectors 50 can be rotated around axostylus axostyle. A bearing surface 511 is respectively provided with the corresponding direction of two fixed parts 51, when hinge is opened to maximum angle, two bearing surfaces 511 contradict each other, so as to prevent hinge from continuing to open.

In such a configuration, vertical pole 201, cross bar 202, montant 1, montant 2 121 are made by square pipe, hinge Chain is stamping, is welded on the part connected by which.

It is understood that for the person of ordinary skill of the art, can be according to technology structure of the present utility model Think of makes other various corresponding changes and deformation, and all these changes and deformation should all belong to this utility model claim Protection domain.

Claims (7)

1. a kind of multi-joint is folded and is pulled a cart, and the luggage carrier that is connected with pull bar lower end including pull bar and is arranged on below luggage carrier Wheel, it is characterised in that：

The luggage carrier is hinged before and after saving shelf by three successively and forms, respectively the first shelf, the second shelf and the 3rd shelf, institute State pull bar to be hinged successively up and down and formed by two section pull bars, respectively the first pull bar and the second pull bar, the second pull bar and the first shelf It is hinged；

First pull bar is turned over and may be folded on the rear side of the second pull bar；Second pull bar is turned over again and may be folded on the first shelf Top, the first pull bar be located between the two；The other end, the 3rd shelf downwardly turn over the lower section that may be folded on the second shelf；Most Afterwards, the first shelf downwardly turn over the lower section that may be folded on the second shelf, and the 3rd shelf are located between the two；Folded state on to Under be followed successively by the second shelf, the 3rd shelf, the first shelf, the first pull bar, the second pull bar.

2. multi-joint according to claim 1 is folded and is pulled a cart, it is characterised in that：

Three section shelf of the luggage carrier are connected in parallel at two vertical poles including two vertical poles for being set in parallel in both sides and two Between cross bar, pass through hinge A and hinge between the first shelf and the vertical pole of the second shelf, the second shelf and the 3rd shelf respectively B is connected up to being hinged between shelf；

Second pull bar includes two montants two for being set in parallel in both sides, and the first pull bar includes that two are set in parallel in both sides Two montants one of montant one and vertical connection crossbeam, be connected up between pull bar by hinge C between montant one and montant two Be hinged；

The hinge between the first shelf and the second pull bar is connected up to by hinge D between the vertical pole and montant two of first shelf Connect.

3. multi-joint according to claim 2 is folded and is pulled a cart, it is characterised in that：The wheel is included installed in the first shelf Two front-wheels and two trailing wheels below the 3rd shelf of lower section, described two front wheels and rear wheels are separately mounted to first On the inside of shelf, the vertical pole of the 3rd shelf, and it is located between two cross bars, after front-wheel is more than to the distance that direction on the inside of vertical pole is stretched out The distance that wheel stretches out, during folding, trailing wheel and front-wheel are folded between two cross bars of the second shelf successively.

4. multi-joint according to claim 3 is folded and is pulled a cart, it is characterised in that：

The opening angle of the hinge A and hinge B is directed downward, and maximum angle is 180 degree, causes three section shelf after fully opening Vertical pole and cross bar constitute loading plane；

Backwards, maximum angle is 180 degree for the opening angular direction of hinge C, causes two section pull bars to constitute complete drawing after fully opening Bar；

The opening angle of hinge D is 90～120 degree towards back upper place, maximum angle, causes pull bar to hang down with luggage carrier after fully opening Directly or in obtuse angle.

5. multi-joint according to claim 4 is folded and is pulled a cart, it is characterised in that：The rotation axiss of the hinge A are to vertical pole The vertical dimension on surface for vertical pole thickness 1/2, the rotation axiss of hinge B are zero to the vertical dimension on vertical pole surface, hinge C's The vertical dimension of rotation axiss to montant one, two surface of montant is zero, and the rotation axiss of hinge D are to the first shelf vertical pole surface Distance with to montant two surface apart from sum for montant one thickness.

6. the multi-joint according to claim 3 or 4 or 5 is folded and is pulled a cart, it is characterised in that：The front-wheel is universal wheel, after Take turns as directional wheel.

7. multi-joint according to claim 6 is folded and is pulled a cart, it is characterised in that：The vertical pole, cross bar, montant one, montant Two are made by square pipe, and the hinge is stamping, are welded on the part connected by which.