CN218021687U

CN218021687U - Foldable trolley

Info

Publication number: CN218021687U
Application number: CN202221356181.8U
Authority: CN
Inventors: 周永帅
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-12-13
Anticipated expiration: 2032-06-01

Abstract

The utility model provides a foldable handcart, which comprises a bottom frame folding component, side frame folding components arranged at two sides of the bottom frame folding component and trundles arranged at the bottom of each side frame folding component, wherein the side frame folding components can be unfolded or folded through the bottom frame folding components; the side frame folding component comprises a first folding frame and a second folding frame, the end parts of the first folding frame and the second folding frame are mutually hinged, one end of the underframe folding component is hinged with the first folding frame, and the other end of the underframe folding component is hinged with the second folding frame; the middle parts of the first folding frame and the first U-shaped frame are hinged with each other, the middle parts of the second folding frame and the second U-shaped frame are hinged with each other, and the end part of the first U-shaped frame is hinged with the end part of the second U-shaped frame; the utility model provides a folded cascade handcart has overcome the defect that current folded handcart is folding bulky and the structure is complicated.

Description

Foldable trolley

Technical Field

The utility model relates to a folding car field especially relates to a folded cascade handcart.

Background

Along with the improvement of standard of living, more and more people like self-driving to go outdoor activities, can carry a lot of picnic food and outdoor apparatus when simultaneously self-driving, but the car of self-driving generally can only be driven to the parking place, remaining distance mostly needs to be done on foot in addition, people carry so much things outdoor hiking very inconvenient, also begin to sell on the market now and can fold the handcart of putting in the trunk, during the use, can open the handcart and be used for carrying picnic food and outdoor apparatus, make things convenient for people to carry.

The foldable trolley disclosed in patent No. CN215663509 has a first U-shaped frame hinged to the upper side of a first folding frame, a first supporting rod hinged to the lower side of the first folding frame, and the first supporting rod, the first U-shaped frame and the first folding frame are connected by a hinge, so that the foldable trolley can be folded, but the foldable trolley has a complicated folding manner, a large volume after being folded, and is inconvenient to store; and the structure is more complicated, spare part is more, production cycle is long, manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problem that a folded cascade handcart is provided to overcome the defect that folding back of current folding handcart is bulky and the structure is complicated.

(II) technical scheme

In order to solve the technical problem, the utility model provides a foldable trolley, which comprises a bottom frame folding component, side frame folding components arranged at two sides of the bottom frame folding component and trundles arranged at the bottom of each side frame folding component, wherein the side frame folding components can be unfolded or folded through the bottom frame folding components; the side frame folding assembly comprises a first folding frame and a second folding frame, the end parts of the first folding frame and the second folding frame are mutually hinged, one end of the bottom frame folding assembly is hinged with the first folding frame, and the other end of the bottom frame folding assembly is hinged with the second folding frame; the middle parts of the first folding frame and the first U-shaped frame are hinged with each other, the middle parts of the second folding frame and the second U-shaped frame are hinged with each other, and the end part of the first U-shaped frame is hinged with the end part of the second U-shaped frame. This folding handcart, the middle part of first U-shaped frame articulates on first folding frame, and the middle part of second U-shaped frame articulates on second folding frame, and the tip of first U-shaped frame and second U-shaped frame is articulated mutually, adopts the beta structure of this mode, and folding volume is littleer under the same size, convenient storage, and it is all very convenient to expand and fold.

Further, the bottom between the first folding frame is provided with the guide rail, the both sides slidable mounting of guide rail has first truckle frame, rotate on the first truckle frame and install the truckle. The bottom of the first folding frame is slidably provided with a shifting button, and the shifting button is used for unlocking or locking the first caster frame. The first caster frame is adopted in a sliding mode, the first caster frame can slide when being folded, the two first caster frames are close to the middle, the two first caster frames can be placed between the two second caster frames after being folded, and the folded foldable bicycle is smaller in size and more convenient to store.

Furthermore, a supporting cross rod is arranged on the lower side of the underframe folding assembly, and the end parts of the first U-shaped frame and the second U-shaped frame are respectively hinged at two ends of the supporting cross rod. The chassis folding assembly comprises a first chassis and a second chassis, the end parts of the first chassis and the second chassis are hinged with each other, one end of the first chassis is hinged with the first folding frame, and one end of the second chassis is hinged with the second folding frame; the support cross bar is positioned below the hinge of the first chassis and the second chassis.

Furthermore, a first joint is installed at the end of the first folding frame, a second joint is installed at the end of the second folding frame, and the first joint is hinged to the second joint.

Further, the first folding frame and the second folding frame have the same structure, the first U-shaped frame and the second U-shaped frame have the same structure, and the first chassis and the second chassis have the same structure.

Furthermore, a cloth bag cloth sleeve is installed on the chassis folding assembly, first installation sleeves are arranged on the front side and the rear side of the cloth bag of the cloth sleeve, second installation sleeves are arranged on the left side and the right side of the cloth bag of the cloth sleeve, the first installation sleeves are installed on the first U-shaped frame and the second U-shaped frame, and the second installation sleeves are sleeved at the hinged positions of the first folding frame and the second folding frame.

Furthermore, two sides of the bottom of the second folding frame are hinged with second caster frames, and caster wheels are rotatably mounted on the second caster frames; the first truckle frame or/and install brake assembly on the second truckle frame, brake assembly includes rotatable footboard and takes turns with the synchronous pivoted card of truckle, be provided with the card post on the footboard, the card takes turns to annular equidistant be provided with a plurality of with card post complex draw-in groove.

Further, the foldable trolley further comprises a pull rod assembly, and the pull rod assembly is hinged to the second folding frame.

Further, the first U-shaped frame and the second U-shaped frame are provided with bending sections which are inward mutually, and the bending sections form a front frame and a rear frame of the foldable trolley. The bending section extends towards the right upper side, and the mode can enable the folding bicycle to have larger storage volume under the condition of the same length.

(III) advantageous effects

The utility model provides a pair of folded cascade handcart compares with prior art and has following advantage:

1) The middle part of the first U-shaped frame is hinged on the first folding frame, the middle part of the second U-shaped frame is hinged on the second folding frame, and the end parts of the first U-shaped frame and the second U-shaped frame are hinged with each other;

2) The first caster frame is adopted in a sliding mode, the first caster frame can slide when being folded, the two first caster frames are close to the middle, the two first caster frames can be placed between the two second caster frames after being folded, and the folded foldable bicycle is smaller in size and more convenient to store.

Drawings

Fig. 1 is a perspective view of a foldable stroller of the present invention;

fig. 2 is a perspective view of a bottom viewing angle of the foldable stroller of the present invention;

fig. 3 is a perspective view of the foldable trolley of the present invention after the cloth bag is removed;

fig. 4 is a schematic structural view of the foldable trolley after the cloth bag is removed;

fig. 5 is a perspective view of the foldable stroller of the present invention, in which the first caster frame is connected to the first folding frame;

fig. 6 is a perspective view of a foldable stroller brake assembly of the present invention;

fig. 7 is a perspective view of the foldable handcart after being folded;

fig. 8 is a schematic structural view of the foldable trolley of the present invention after being folded;

the corresponding part names for the various reference numbers in the figures are: 1. a first folding frame; 2. a second folding frame; 3. a first U-shaped frame; 4. a second U-shaped frame; 5. a guide rail; 6. a first caster frame; 7. a caster wheel; 8. a toggle button; 9. a support rail; 10. a first joint; 11. a second joint; 12. a first chassis; 13. a second chassis; 14. a cloth bag; 15. a first mounting sleeve; 16. a second mounting sleeve; 17. a second caster frame; 18. a pedal; 19. clamping the wheel; 20. clamping the column; 21. a card slot; 22. a drawbar assembly; 23. and (7) bending.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 8, the present invention provides a foldable stroller, which comprises a bottom frame folding assembly, side frame folding assemblies mounted on two sides of the bottom frame folding assembly, and casters 7 disposed at the bottom of each side frame folding assembly, wherein the side frame folding assemblies can be unfolded or folded by the bottom frame folding assemblies; the side frame folding component comprises a first folding frame 1 and a second folding frame 2, the end parts of which are hinged with each other, one end of the underframe folding component is hinged with the first folding frame 1, and the other end of the underframe folding component is hinged with the second folding frame 2.

Referring to fig. 3 and 4, the chassis folding assembly includes a first chassis 12 and a second chassis 13 having ends hinged to each other, one end of the first chassis 12 is hinged to the first folding frame 1, and one end of the second chassis 13 is hinged to the second folding frame 2. The end of the first folding frame 1 is provided with a first joint 10, the end of the second folding frame 2 is provided with a second joint 11, and the first joint 10 is hinged with the second joint 11 through a hinge shaft.

Referring to fig. 1 and 3, a first U-shaped frame 3 is hinged to the middle of the first folding frame 1, a second U-shaped frame 4 is hinged to the middle of the second folding frame 2, and the end of the first U-shaped frame 3 is hinged to the end of the second U-shaped frame 4. The lower side of the chassis folding assembly is provided with a supporting cross rod 9, the end parts of the first U-shaped frame 3 and the second U-shaped frame 4 are respectively hinged at two ends of the supporting cross rod 9, and the supporting cross rod 9 is positioned below the hinged part of the first chassis 12 and the second chassis 13.

In order to reduce the structure and save the manufacturing cost, the first folding frame 1 and the second folding frame 2 have the same structure, the first U-shaped frame 3 and the second U-shaped frame 4 have the same structure, and the first underframe 12 and the second underframe 13 have the same structure.

Referring to fig. 1 and 5, a guide rail 5 is disposed at the bottom of the first folding frame 1, first caster frames 6 are slidably mounted on two sides of the guide rail 5, the first caster frames 6 can slide along the guide rail 5, and casters 7 are rotatably mounted on the first caster frames 6. The bottom of the first folding frame 1 is slidably provided with a toggle button 8, and the toggle button 8 is used for unlocking or locking the first caster frame 6. In this embodiment, adopt bolt and pinhole complex mode to lock, dial button 8 connecting pin, set up the pinhole on the first truckle frame 6, dial button 8 through the slip and lock or unblock first truckle frame 6.

Referring to fig. 1 and 6, two sides of the bottom of the second folding frame 2 are hinged with second caster frames 17, and the second caster frames 17 are rotatably provided with casters 7; the first caster frame 6 or the second caster frame 17 is provided with a brake assembly, the brake assembly comprises a rotatable pedal 18 and a clamping wheel 19 which rotates synchronously with the caster 7, the pedal 18 is provided with clamping columns 20, and the clamping wheel 19 is provided with a plurality of clamping grooves 21 matched with the clamping columns 20 at equal intervals in a ring shape. When the brake is used, the pedal 18 is stepped on by feet, the pedal 18 drives the clamping column 20 to rotate, and the clamping column 20 enters the clamping groove 21 to lock the foot wheel 7.

Referring to fig. 1 and 2, a foldable cloth bag 14 is mounted on the chassis folding assembly, the cloth bag may be made of a cloth material, first mounting sleeves 15 are disposed on the front and rear sides of the cloth bag 14, second mounting sleeves 16 are disposed on the left and right sides of the cloth bag, the first mounting sleeves 15 are correspondingly mounted on the first U-shaped frame 3 and the second U-shaped frame 4, and the second mounting sleeves 16 are correspondingly mounted at the hinge joints of the first folding frame 1 and the second folding frame 2.

Referring to fig. 1 to 4, the foldable stroller further includes a pull rod assembly 22, and the pull rod assembly 22 is hinged to the second folding frame 2 for convenient use.

Referring to fig. 1, the first U-shaped frame 3 and the second U-shaped frame 4 have bent sections 23 directed inwards from each other, the bent sections 23 forming a front frame and a rear frame of the foldable trolley. The bending section extends towards the right upper side, and the mode can enable the folding bicycle to have larger storage volume under the condition of the same length.

Referring to fig. 7 and 8, when folded, the first caster frame 6 is unlocked by sliding the toggle button 8, and after unlocked, the two first caster frames 6 are moved toward the middle; then, the hinged position of the first chassis 12 and the second chassis 13 is lifted upwards, the first U-shaped frame 3 and the second U-shaped frame 4 are drawn close to the middle, and the first folding frame 1 and the second folding frame 2 are drawn close to the middle under the driving of the first U-shaped frame 3 and the second U-shaped frame 4, so that the trolley is folded.

The foldable trolley provided by the embodiment has the advantages of simple structure, low manufacturing cost, simple folding mode, smaller volume after being folded and convenience in storage; the middle part of the first U-shaped frame is hinged on the first folding frame, the middle part of the second U-shaped frame is hinged on the second folding frame, and the end parts of the first U-shaped frame and the second U-shaped frame are hinged with each other; the first caster frame of slidingtype is adopted, can slide when folding first caster frame, makes two first caster frames draw close to the centre, can arrange in between two second caster frames after folding, and the volume is littleer after folding, and it is more convenient to accomodate, has overcome the defect that current folding handcart is folding back bulky and the structure is complicated.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A foldable trolley, comprising: the foldable side frame folding device comprises a bottom frame folding component, side frame folding components arranged on two sides of the bottom frame folding component and casters (7) arranged at the bottom of each side frame folding component, wherein the side frame folding components can be unfolded or folded through the bottom frame folding components; the side frame folding assembly comprises a first folding frame (1) and a second folding frame (2) with mutually hinged end parts, one end of the base frame folding assembly is hinged with the first folding frame (1), and the other end of the base frame folding assembly is hinged with the second folding frame (2); the middle parts of the first folding frame (1) and the first U-shaped frame (3) are hinged to each other, the middle parts of the second folding frame (2) and the second U-shaped frame (4) are hinged to each other, and the end part of the first U-shaped frame (3) is hinged to the end part of the second U-shaped frame (4) mutually.

2. Foldable trolley according to claim 1, characterized in that: the bottom between first folding frame (1) is provided with guide rail (5), the both sides slidable mounting of guide rail (5) has first truckle frame (6), rotate on first truckle frame (6) and install truckle (7).

3. Foldable trolley according to claim 2, characterized in that: the bottom slidable mounting of first folding frame (1) has and dials button (8), dial button (8) and be used for unblock or locking first truckle frame (6).

4. Foldable trolley according to claim 1, characterized in that: the lower side of the underframe folding component is provided with a supporting cross rod (9), and the end parts of the first U-shaped frame (3) and the second U-shaped frame (4) are respectively hinged at two ends of the supporting cross rod (9).

5. Foldable trolley according to claim 1, characterized in that: first joint (10) are installed to the tip of first folding frame (1), second joint (11) are installed to the tip of second folding frame (2), first joint (10) with second joint (11) are articulated mutually.

6. Foldable trolley according to claim 4, characterized in that: the chassis folding assembly comprises a first chassis (12) and a second chassis (13) with the end parts hinged with each other, one end of the first chassis (12) is hinged with the first folding frame (1), and one end of the second chassis (13) is hinged with the second folding frame (2); the support cross bar (9) is positioned below the joint of the first chassis (12) and the second chassis (13).

7. Foldable trolley according to claim 6, characterized in that: the first folding frame (1) and the second folding frame (2) are identical in structure, the first U-shaped frame (3) and the second U-shaped frame (4) are identical in structure, and the first base frame (12) and the second base frame (13) are identical in structure.

8. A foldable trolley according to claim 1, wherein: install sack cloth cover (14) on the chassis folding assembly, sack cloth cover (14) are provided with first installation cover (15) in both sides in the front and back, are provided with second installation cover (16) in the left and right sides, first installation cover (15) are installed first U-shaped frame (3) with on second U-shaped frame (4), second installation cover (16) suit is in first folding frame (1) with the articulated department of second folding frame (2).

9. Foldable trolley according to claim 2, characterized in that: two sides of the bottom of the second folding frame (2) are hinged with second caster frames (17), and the second caster frames (17) are rotatably provided with casters (7); first truckle frame (6) and/or install brake assembly on second truckle frame (17), brake assembly includes rotatable footboard (18) and blocks wheel (19) with truckle (7) synchronous rotation, be provided with card post (20) on footboard (18), block wheel (19) go up the annular equidistant be provided with a plurality ofly with card post (20) complex draw-in groove (21).

10. Foldable trolley according to claim 1, characterized in that: the folding rack is characterized by further comprising a pull rod assembly (22), wherein the pull rod assembly (22) is hinged to the second folding rack (2).

11. Foldable trolley according to claim 1, characterized in that: the first U-shaped frame (3) and the second U-shaped frame (4) are provided with bending sections (23) which are inward towards each other, and the bending sections (23) form a front frame and a rear frame of the foldable trolley.