CN2222100Y - The folding device of the frame of the umbrella car - Google Patents

Abstract

A folding device for the skeleton of umbrella carriage is composed of a left and a right frames pivoted to the back of carriage via a cross rod with a rotary seat, a handle bar at the upper part of said left and right frames, a front and a rear wheels, and a foldable handle bar which can be folded down and has four wheels parallelly arranged for greatly reducing the volume of carriage.

Description

The folding device of the frame of the umbrella car

The utility model relates to a folding device for a frame, in particular to a folding device for an umbrella car frame which is easy to operate, small in size and easy to carry.

The structure of the commonly seen umbrella car device is shown in Figure 8. The early umbrella car design is that a cross strut A and B are pivoted at the rear and bottom of the car body, and a strut C is provided at the front and rear ends of the bottom. , the left and right skeletons D are fixed by the support of the poles A, B and the pole C; when the umbrella cart device is folded, only the skeleton D can be placed close together, although its volume is reduced, but the umbrella cart still maintains a certain length and volume. It was still too large to carry; later, there was an improved structure aimed at its shortcomings, as shown in Figure 9, which pivotally connects a bendable front pedal F between the front bottom of two front struts E, and another rear strut G The upper end of the front support rod E is directly connected with its upper end, and the armrest rod H is connected to the upper end of the front support rod E with a pivoting element. The support rod I is connected by a pivotal element; and the front and rear ends of the bottom support rod J are fixedly connected to the bottom surface of both ends of the front pedal F and connected to the middle section of the rear support rod G by a pivotal element; , as shown in Figure 10, in addition to being able to be combined left and right, the armrests and the struts connected to the front wheels can be placed side by side to form a folded state where the front and rear wheels are separated; however, this structure, although compared with the earlier design It has the effect of bringing the front and rear frames together, but the length of the armrest bar and the rear wheel strut has not been shortened, which cannot improve the convenience of carrying, and such a large volume will also cause waste in the cost of factory shipment, transportation and packaging , At the same time, because the front and rear wheels are separated, the entire car body can only be placed flat on the ground and cannot stand.

The purpose of this utility model is to provide a folding device for the frame of an umbrella car with a new structure, which makes it easy to operate, and has a small volume after folding and is easy to carry.

The purpose of this utility model is achieved by the following technical solutions. A folding device for an umbrella car frame, which is characterized in that it includes: left and right bone rods, rear foot rods, cross rods, protective rods, pedals and other components, wherein a rotatable joint is provided in the center of the bone rods, and the upper part forms a A handle bar with a horizontally extending armrest in the center. The front end of the armrest is pivotally connected to a bendable and swingable protective bar, while the lower section is bent to form a front foot bar. The upper part of the rod is bent and extended to a horizontal strut, and the bottom end is also provided with wheels;

The cross strut is pivotally connected to the left and right second handle bars and the rear foot bar with its four ends, and its upper and bottom ends are respectively provided with a brace arm and a strut bar, and a swivel seat is provided at its intersection, and the upper strut bar is pivoted. Knot spin seat;

The pedal is pivotally connected to the bottom between the two front foot bars, and the two pivotally connected boards that can be folded in half are respectively connected to a connecting rod, and the other end of the connecting rod is pivotally connected to the upper end of the rear foot rod.

The purpose of this utility model can also be further realized by the following technical measures. In the above-mentioned retractable device for the frame of an umbrella car, the pedals are pivotally connected to the two plates, one side of which extends an inclined plate, and the opposite ends of the center form pivot plates corresponding to the arcs and parallel in spacing, and are inserted into each other and A pivot pin is inserted, and the two outer ends of the two boards are respectively provided with a pivot ear and pivoted to a sleeve that also has a pivot ear, and the sleeve is then looped on the front foot bar; A pivot tube is used to connect a connecting rod, and the other end of the connecting rod also has a pivot tube pivotally arranged on the rear foot bar.

The utility model pivotally connects the left and right bone rods with a cross strut with a swivel seat at the back of the car body, and forms a bendable joint between the upper section of the cross strut and the upper handle rod of the bone rod with the swivel seat and the middle section of the bone rod. After the left and right bone rods and the front and rear wheels are close together, the handle rods can be folded downwards, and the four wheels are juxtaposed, so that the volume of the car body is greatly reduced, and the four wheels can be placed upright smoothly. on the ground.

Another feature of the utility model is also the pedal on the front bottom side of the car body, which is to pivotally connect the two pivoted plate bodies to the bottom side of the extended front foot bar of the bone bar with two outer ends, and connect the two plate bodies with two connecting rods, The end of the connecting rod is pivotally connected to the rear foot rod. When the car body is unfolded, the two connecting rods can pull and support the second plate body to form a horizontal pedal, and when the front and rear foot rods are folded and the left and right sides are close together, the plate body can be pushed to fold the pedal at the same time. Easy to operate.

From the above knowledge, the folding device for the frame of the umbrella car provided by the utility model is not only much smaller in volume after being folded, but also the design of each support rod frame is also reasonable and coordinated so that it can be linked with each other, regardless of the folding of the frame. It can be easily unfolded or unfolded, and the operation is convenient. At the same time, the supporting effect is stable, and the skeleton components are also streamlined and practical.

Concrete structure of the present utility model is provided in detail by following embodiment and accompanying drawing thereof.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is an exploded perspective view of the pedal of the present invention.

Fig. 3 is a schematic diagram of the expansion of the utility model.

Fig. 4 is a developed side view of the utility model.

Fig. 5 is a folded rear view of the utility model.

Fig. 6 is a folded side view (1) of the utility model.

Fig. 7 is a folded side view (2) of the utility model.

Fig. 8 is a schematic structural view (1) of a conventional umbrella car.

Fig. 9 is a structural schematic view (two) of a conventional umbrella car.

Fig. 10 is a schematic diagram (3) of a conventional umbrella car folded.

First please refer to shown in Figure 1, which is a schematic diagram of the overall structure of the utility model, and its main skeleton structure includes left and right skeletal rods (1), rear foot rods (2) and cross struts (3); wherein the skeletal rods (1) The upper part forms a handle bar (11), the middle part is provided with a rotatable joint (4) and an armrest (41) is extended, and the front ends of the armrests (41) on both sides are pivotally connected to a bendable and swingable guard bar (5), The lower part of the bone rod (1) is slightly bent into a front foot rod (12), and the rod end is sleeved on the wheel, and pivotally connected to the rear foot rod (2) at its bend, and the upper part of the rear foot rod (2) is bent to extend a horizontal strut ( 21), and the bottom end is also sleeved with wheels; in addition, the four ends of the cross strut (3) are pivotally connected to the second handle bar (11) and the rear foot bar (2) respectively, and its upper and bottom ends are respectively equipped with movable Bending support arm (6) and strut bar (7), and the intersection is provided with a swivel seat (31), and the rod body on the top of the swivel seat (31) is pivotally connected with the swivel seat (31) and can be pivoted backwards and downwards Fold; moreover, the bottom of the front foot bar (12) of the lower section of the two bone bars (1) is pivotally connected with a pedal (8), and the pedal (8) is designed as a structure that can be folded in half, and connects the two connecting rods (9 ), the other end of the connecting rod (9) is pivotally connected to the upper end of the rear foot bar (2), and the two connecting rods (9) are used to keep the pedal (8) horizontal.

Please refer to shown in Fig. 2, it is the exploded perspective view of pedal (8) of the present utility model, wherein, pedal (8) is formed by the pivot connection of two board bodies, and one board body slant plate (81) is extended on one side of the board body, The opposite ends of the center each form a pivot plate (82) corresponding to the arc circle and parallel in spacing, so as to interpolate each other with a pivot pin (83) to wear and pivot; again, the opposite outer ends of the two plates respectively form a pivot ear ( 84), and is pivotally connected with the sleeve (85) that also has pivot ear (851); the sleeve (85) is provided for tacking on the front foot bar (12); Each side is provided with a pivot tube (86) to connect a connecting rod (9), and the other end of the connecting rod (9) is also provided with a pivot tube (91) to pivot on the rear foot bar (2).

After the above components are combined, when the umbrella car is in the unfolded state, as shown in Figure 1, Figure 3, and Figure 4, the left and right bone bars (1) and rear foot bars (2) of the car body are expanded by the cross bar (3). Appropriate angles are propped open, and the bracing arm (6) and the lower end bracing rod (7) on the upper part of the cross strut (3) are flat and horizontally supported, and the left and right bone rods (1) and rear foot rods (2) can be fixed Do not merge, the pedal (8) between the two front foot bars (12) of the bone bar (1) is also pulled to flatten the positioning simultaneously, and the rear foot bar (2) cannot be fixed with the connecting rod (9) and the front foot bar ( 12) Fold in, and relatively, the connecting rod (9) that links to each other with rear leg bar (2) also provides the structure of a strut pedal (8), thereby plays the effect of restraining and positioning each other.

In addition, when desiring to close the umbrella cart, as shown in Figure 5, at first the support arm (6) and the support rod (7) are bent upwards, so that the cross support rods (3) are brought together and the left and right skeletal rods ( 1) and the rear foot rod (2) close together, and make the front side protection rod (5) bend forward horizontally, and when the pedal (8) is bent downward, the rear foot rod (2) is driven by the connecting rod (9) Move closer to the front foot bar (12), so that the left and right, front and rear frame bodies of the umbrella car are folded simultaneously to reduce its width and length (as shown in Figure 6); then, after the car body is brought together, due to the joint (4) The swivel seat (31) of the pivot center and the cross strut (3) and the pivot joint of the upper cross strut (3) are just located on the same horizontal line, that is, the handle bar (11) on the top of the bone rod (1) and The upper part of the cross strut (3) has the same center of rotation, as shown in Figure 7, so that the handle bar (11) can be folded backwards and folded down together with the cross strut (3), so that the height of the umbrella car can be Reduction, reducing most of the volume; and the guard bar (5) pivoted at the front end of the bone bar (1) central armrest (41) can also be bent downwards, making the overall volume smaller and lighter; moreover, after folding The car body of the utility model has the front and rear wheels juxtaposed so that the four wheels can be flatly placed on the ground, so that the car body can stand upright stably without toppling over, and can be placed anywhere conveniently.

Claims (2)

1. A folding device for an umbrella car frame, characterized in that it includes: left and right bone rods, rear foot rods, cross struts, protective rods and pedals and other components, wherein a rotatable joint is provided in the center of the bone rods, and The upper section forms a handle bar, and the center extends horizontally with an armrest. The front end of the armrest is pivotally connected to a bendable and swingable protective bar, while the lower section is bent to form a front foot bar. , the upper part of the rear foot rod is bent and extended to a horizontal strut, and the bottom end is also equipped with wheels; The cross strut is pivotally connected to the left and right second handle bars and the rear foot bar with its four ends, and its upper and bottom ends are respectively provided with a brace arm and a strut bar, and a swivel seat is provided at its intersection, and the upper strut bar is pivoted. Knot spin seat; The pedal is pivotally connected to the bottom between the two front foot bars, and the two pivotally connected boards that can be folded in half are respectively connected to a connecting rod, and the other end of the connecting rod is pivotally connected to the upper end of the rear foot rod. 2. The folding device for the frame of the umbrella car according to claim 1, characterized in that the pedals are pivotally connected to the two plates, one side of which extends an inclined plate, and the opposite ends of the center form arcs corresponding to each other and the distances are parallel. Pivot plates are inserted into each other and a pivot pin is inserted, and the two outer ends of the two plates are each provided with a pivot ear and pivoted to a sleeve that also has a pivot ear, and the sleeve is then sleeved on the front foot bar; In addition, a pivot tube is respectively provided on one side of the two boards to connect a connecting rod, and the other end of the connecting rod also has a pivot tube pivotally arranged on the rear foot bar.

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