CN201685842U

CN201685842U - Foldable cart

Info

Publication number: CN201685842U
Application number: CN2010201999335U
Authority: CN
Inventors: 郑世平
Original assignee: Individual
Current assignee: Shanghai Tong Tong Electroplating Co Ltd
Priority date: 2010-05-21
Filing date: 2010-05-21
Publication date: 2010-12-29
Anticipated expiration: 2020-05-21

Abstract

The utility model relates to a foldable cart. A main body of the foldable cart comprises a bottom frame, handrail frames, connecting rods, front and rear pulleys and flexible fabrics. The foldable cart is characterized in that fronts of the handrail frames on two sides of the main body are respectively fixed with a connecting part, each connecting rod is connected between each connecting par and the rear of the bottom frame, two upper ends of a U-shaped supporting rod are respectively hinged to the middles of the two sides of the handrail frames, the middles of U-shaped supporting rod are respectively hinged with slide sleeves, the slide sleeves are correspondingly sleeved on the connecting rods on the same side of the slide sleeves, a cross rod at the bottom of the U-shaped supporting rod with the front pulleys can support the front of the bottom frame, the rear of the bottom frame is provided with the rear pulleys, the flexible fabrics are processed into a sleeve, and the upper edge and the lower edge of the sleeve are locally positioned on the handrail frames and the bottom frame. In the structure, the U-shaped supporting rod can rearwards swing around points hinged with the handrail frames to be folded, so that the handrail frames, the connecting rod and the bottom frame can be overlapped to form a flat structure. The foldable cart can be placed in a car boot and used for conveying goods for people during travelling.

Description

A kind of Folding trolley

Technical field:

The utility model relates to a kind of Folding trolley, especially is fit to be positioned in the automobile trunk, in order to shopping or provisional conveying goods.

Background technology:

Common go-cart mostly is fixedly rigid construction on the market, such as supermarket shopping car, because volume is big, can't pack in the automobile trunk, makes troubles to the user.Also there is the dealer to develop multi-form folding shopping cart for this reason, as patent No. CN99229075.9, Folding trolley by name, its structure comprises that two bottoms have the upper and lower two brackets composition of the support of pulley and right-angled crossing, related two stands, U-shaped spare end is hinged forms by two for bracket, is equipped with rigidity and deposits the thing basket on bracket.This cart body can fold, can not fold but deposit the thing basket, and, give to deposit and make troubles for dividing body structure, and deficiency such as the space that its institute can holding freight is little, in addition, there is complex structure in bracket, the big defective of processing technology difficulty.

Summary of the invention:

The purpose of this utility model is the Folding trolley that a kind of handrail frame of design and underframe can be folded into flat structure.

Technical solutions of the utility model are achieved in that a kind of Folding trolley, main body includes underframe, handrail frame, connecting rod, front and back pulley and flexible fabric, the handrail frame front portion that it is characterized in that the main body both sides respectively is fixed with a connection piece, is connected with a connecting rod between attaching parts and underframe rear portion; Support U bar two upper ends are hinged on handrail frame two middle side parts respectively, the middle part is hinged with sliding sleeve separately, and this sliding sleeve correspondence is set on the connecting rod of homonymy, and the support U bar bottom bar that has front wheel can support the underframe front portion, and the underframe rear portion is equipped with back pulley; Flexible fabric is processed into the tube bag, and the upper and lower of this bag is positioned at respectively on handrail frame and the underframe along the part.In this structure, supporting the U bar can make handrail frame, connecting rod and underframe can overlap to form a flats structure around swing folding with handrail frame hinge-point backward, and the tube bag of flexible fabric processing does not influence folding operation yet.

Described handrail frame is made up of a U frame before one and a handrail U frame, and attaching parts is fixed on handrail U frame leading section, after preceding U frame passes attaching parts, both ends are hinged on the support U bar of sliding sleeve with epimere.The handrail frame adopts two U-shaped frames to combine, make when folding, preceding U frame can after contract, and can enlarge the length of go-cart after opening, and can tighten the tube bag.

The handrail U frame below of described handrail frame is hung with a sack U bar by the flexibility band, and this sack U bar both ends are hinged on the hinge-point that supports U bar and handrail frame, and tube bag part, upper edge is set on this sack U bar.Mat sack U bar support tube bag bag edge makes the tube bag need not to extend on the handrail U frame, saves lining, also is easy to processing.

The handrail U frame both sides of described handrail frame are hinged with the two ends of U-shaped holding rod, and this U-shaped holding rod can be swung around hinge-point, after put potential energy and be shelved on the handrail U frame, play the effect of extending handrail, avoid foot to run into the go-cart rear portion during implementation; And behind forward swing, the effect of divisible again go-cart railway carriage provides goods to rely on.

Described underframe downside is provided with the concave frame of shelving for the carriage cross bar, locatees more reliably, puts after when avoiding front wheel to run into obstacle.

Be fixed with the up spacing ring of a restriction sliding sleeve on the described connecting rod, make the bearing capacity of handrail frame front end can be directly passed to support U bar.

Be equipped with clathrum in the described underframe, the tube bag bottom of being processed in order to even supporting flexible lining is when perhaps the tube bag is for no bottom structure, directly in order to shelve goods.

Described underframe rear side shaft alignment has one or two back pulleys, and this back pulley underframe is relatively done 360 ° of rotations.Make things convenient for implementations such as go-cart turning.

Described support U bar is positioned with two front wheels, and the two back pulley wheelspans that the wheelspan of two front wheels is fixed on the underframe rear side are little, and folding back two front wheels are between two back pulleys, so that can tow after folding.

Be positioned with supporting-point roller on the support U bar bottom bar between described two front wheels, the diameter of this supporting-point roller is less than the front wheel diameter.Supporting-point roller can increase bearing capacity, makes go-cart to walk on the sandy beach.

The utlity model has reasonable in design, structure light and handy, open the characteristics easy with folding operation, that supporting and space is big, it is folded into flats, can be positioned in the automobile trunk; And can on the front wheel axis, set supporting-point roller, and it can be walked on the sandy beach, the expansion range of use, leisure or trip shopping provide the instrument that transports article in order to travel.

Description of drawings:

Below in conjunction with concrete legend the utility model is described further:

Fig. 1 Folding trolley framework block diagram

Fig. 2 Folding trolley frame side view

Fig. 3 Folding trolley framework folds scheme drawing

Fig. 4 Folding trolley schematic perspective view

Fig. 5 Folding trolley framework two block diagrams

Fig. 6 Folding trolley framework three block diagrams

Fig. 7 Fig. 6 Folding trolley scheme drawing

Wherein

U frame before the 1-handrail frame 11-handrail U frame 12-

The flexible band of 13-attaching parts 14-U shape holding rod 15-

2-underframe 21-clathrum 22-concave frame

3-connecting rod 31-spacing ring 4-front wheel

41-supporting-point roller 5-back pulley 6-supports the U bar

61-cross bar 62-sliding sleeve 7-tube bag

71-partition wall 72-sack U bar

The specific embodiment:

With reference to Fig. 1, Fig. 2 and Fig. 3, the Folding trolley framework, chassis body forms by pipe fitting is hinged, and it includes handrail frame 1, underframe 2, connecting rod 3, forward and backward pulley 4,5.Underframe 2 is that a U-shaped frame opening part adds a transverse bar member and becomes closing structure among the figure, is equipped with clathrum 21 in the underframe 2, and clathrum 21 can be metal grill or nylon rope grid, if adopt metal gauze compartment 21, its underframe 2 also can directly adopt the U-shaped frame.Underframe 2 rear side shaft alignments have two back pulleys 5, and back pulley 5 underframe is relatively done 360 ° of rotations, can turn flexibly.

Handrail frame 1 is made up of a preceding U frame 12 and a handrail U frame 11, is fixed with attaching parts 13 at handrail U frame leading section, is connected with a connecting rod 3 between attaching parts 13 and underframe 2 rear portions; 6 liang of upper ends of support U bar are hinged on 11 liang of middle side parts of handrail U frame respectively, 6 liang of middle parts of support U bar are hinged with sliding sleeve 62 separately, these sliding sleeve 62 correspondences are set on the connecting rod 3 of homonymy, it can be done along connecting rod 3 and slide up and down, and satisfies the variation of position when opening with folding.Before U frame 12 pass attaching parts 13 back, both ends are hinged on the support U bar 6 of sliding sleeve with epimere, form the preceding support of tube bag, this preceding U frame 12 can be followed and contract after supporting U bar 6, and save the space when the go-cart folding.The support U bar bottom bar 61 that has front wheel can support underframe 2, has both played positioning supports U bar 6 forward swings, can support the weight of underframe 2 again, and it is transferred to front wheel 4.

Two back pulleys, 5 wheelspans that the wheelspan of two front wheels 4 that support U bar 6 is positioned with is fixed on underframe 2 rear sides are little, and folding back two front wheels 4 are between two back pulleys 5; Be positioned with a supporting-point roller 41 on support U bar 6 bottom bars that two front wheels are 4, supporting-point roller 41 diameters are less than front wheel 4 diameters, neither influence the walking on the hardstand, and can provide necessary support, can select according to use occasion for walking in sandy beach or soft ground.

Underframe 2 downsides are provided with the concave frame of shelving for cross bar 62 22 by on the position that is located at the cross bar 61 that supports the U bar, open when go-cart and put in place, and its cross bar 61 falls in the concave frame 22, plays positioning action; During folding, slightly up mention underframe 2 front portions, cross bar 61 breaks away from concave frame 22 restrictions, supports U bar 6 back pendulum flexibly, put together with underframe 2, at this moment, sliding sleeve 62 also can be along connecting rod 3 slippages, move after making its related locating point, realize folding purpose, folding process such as Fig. 2 and Fig. 3.In addition, be fixed with the up spacing ring 31 of a restriction sliding sleeve 62 on the connecting rod 3, form two position-limiting actions with concave frame 22, the weight of handrail frame 1 front portion also can directly import on the support U bar 6 by this spacing ring 31.

With reference to Fig. 4, Folding trolley block diagram, flexible fabric are processed into tube bag 7, the upper and lower edge of this bag 7 is fixed in respectively on handrail frame 1 and the underframe 2, but forms the space of a holding freight, can be sewed with partition wall 71 as required in this bag 7, perhaps its little bag is so that deposit various article.The flexible fabric of making tube bag 7 refers to oxford, grid screen cloth, perhaps the collapsible grid net that is formed by elastic threads Series Code flakey plastic.

With reference to Fig. 5, in order to improve whole rigidity intensity, handrail frame 1 is the framework of a closure, and the rear portion forms the horizontal type handrail, and it can realize above-mentioned purpose equally; Certainly do not get rid of yet and adopt the U-shaped mount structure, the U-shaped bottom of this U-shaped frame forward, and both ends form open handrail.And back pulley 5 also can only be set up one, and it is installed in underframe 2 rear portion central authorities, especially is fit to use in the small dimension go-cart, can alleviate the weight of go-cart greatly.

With reference to Fig. 6 and Fig. 7, this is on the basis of the above a, increases the structure of a sack U bar 72 and U-shaped holding rod 14, makes Folding trolley hommization more.Handrail U frame 11 both sides of handrail frame are hinged with the two ends of U-shaped holding rod 14, this U-shaped holding rod 14 can be swung around hinge-point, it is extensible go-cart handrail that the back pendulum puts in place, avoid foot to run into the go-cart rear portion during go-cart, Fig. 6 dotted portion is U-shaped holding rod 14 forward swing structures, the available stock thing is by establishing, and an effect of cutting apart railway carriage dynamically is provided; Handrail U frame 11 belows are with 15 to be hung with a sack U bar 72 by flexibility, this sack U bar 72 both ends are hinged on the hinge-point that supports U bar 6 and handrail frame 1, tube bag 7 local upper edges are set on this sack U bar 72, make sack more carefully and neatly done, and the go-cart moulding more meets esthetic requirement; Reduce the height that tube bag 7 rear portions raise for the location, save lining, and the also easier processing of smooth sack.

The utility model aims to provide a kind of connecting rod and support U bar by handrail frame, underframe and a correlation and forms; can be folded into the Folding trolley of flats structure; its handrail frame and underframe both can adopt closed framework; also can adopt open U-shaped framework; flexible fabric both can adopt oxford; also can adopt other Foldable material, on this basis, allly do the scope that corresponding substitute scheme or increase mechanism on this basis all should belong to the utility model protection.

Claims

1. Folding trolley, main body includes underframe, handrail frame, connecting rod, front and back pulley and flexible fabric, it is characterized in that the handrail frame front portion of main body both sides respectively is fixed with a connection piece, is connected with a connecting rod between attaching parts and underframe rear portion; Support U bar two upper ends are hinged on handrail frame two middle side parts respectively, the middle part is hinged with sliding sleeve separately, and this sliding sleeve correspondence is set on the connecting rod of homonymy, and the support U bar bottom bar that has front wheel can support the underframe front portion, and the underframe rear portion is equipped with back pulley; Flexible fabric is processed into the tube bag, and the upper and lower of this bag is positioned at respectively on handrail frame and the underframe along the part.

2. a kind of Folding trolley according to claim 1 is characterized in that the handrail frame is made up of a U frame before one and a handrail U frame, and attaching parts is fixed on handrail U frame leading section, after preceding U frame passes attaching parts, both ends are hinged on the support U bar of sliding sleeve with epimere.

3. a kind of Folding trolley according to claim 1 and 2, the handrail U frame below that it is characterized in that the handrail frame is hung with one bag of U bar by the flexibility band, this bag U bar both ends are hinged on the hinge-point that supports U bar and handrail frame, and tube bag part, upper edge is set on this bag U bar.

4. a kind of Folding trolley according to claim 1 and 2 is characterized in that the handrail U frame both sides of handrail frame are hinged with the two ends of U-shaped holding rod, and this U-shaped holding rod can be swung around hinge-point.

5. a kind of Folding trolley according to claim 1 is characterized in that the underframe downside is provided with for supporting the concave frame that U bar bottom bar is shelved.

6. a kind of Folding trolley according to claim 1 is characterized in that being fixed with on the connecting rod the up spacing ring of a restriction sliding sleeve.

7. a kind of according to claim 1 or 5 Folding trolley is characterized in that being equipped with in the underframe clathrum.

8. a kind of Folding trolley according to claim 1 is characterized in that underframe rear side shaft alignment has one or two back pulleys, and this back pulley underframe is relatively done 360 ° of rotations.

9. according to claim 1 or 8 described a kind of Folding trolley, it is characterized in that supporting the U bar and be positioned with two front wheels, the two back pulley wheelspans that the wheelspan of two front wheels is fixed on the underframe rear side are little, and folding back two front wheels are between two back pulleys.

10. a kind of Folding trolley according to claim 9 is characterized in that being positioned with supporting-point roller on the support U bar bottom bar between two front wheels, and the diameter of this supporting-point roller is less than the front wheel diameter.