CN218777557U - Folding bicycle with rear wheels braked simultaneously - Google Patents

Abstract

The utility model discloses a folding vehicle with the rear wheels braked simultaneously, which comprises an underframe, a moving mechanism which is used for making the device movable and can brake the front wheels and the rear wheels simultaneously, and a loading mechanism which is used for placing sundries and can make the device contract to reduce the space utilization rate; through the technical scheme, when the device need be folded to it not using, start two-way motor, threaded connection and the sliding fit of shrink strip and chassis and L type frame and the sliding fit of T type frame through carriage and threaded shaft, can let in the L type frame indentation T type frame after starting two-way motor, let in the shrink strip indentation chassis, thereby make the device fold, reduce its space utilization, fold folding car through the mode of this kind of shrink, and only need start two-way motor and just can realize, thereby avoid the condition that the structure presss from both sides people's finger in the device.

Description

Folding bicycle with rear wheels braked simultaneously

Technical Field

The utility model relates to a debris transportation technical field, in particular to folding car of rear wheel simultaneous braking.

Background

The folding cart is widely used for transporting sundries, pets, gardening supplies and other places, has multiple functions, can be used as a traveling cart and can also carry articles, and is widely used because the folding cart can be folded when not used so as to reduce the space occupancy rate.

The folding car that current patent publication is CN212289918U rear wheel simultaneous braking, including folding automobile body, folding bottom of the car body sets up the wheel device, and the front portion sets up the front handle, and the bottom front end sets up the horizontal pole, the wheel device is including two front wheels that are located folding bottom of the car body front end and two rear wheels that are located folding bottom of the car body rear end, front wheel and rear wheel all are equipped with the truckle mount, wherein be equipped with the brake equipment of two rear wheels of simultaneous braking between the truckle mount of two rear wheels, set up between the truckle mount of two front wheels and the front handle and turn to linkage structure.

This device is through having increased the brake equipment that can brake simultaneously between two rear wheels, this structure can prevent the shape that four wheels are sharp after folding, there is the dislocation between two front wheels and two rear wheels, the problem that can be fine solution can not stand after folding, nevertheless this folding car reduces space utilization with present most folding cars for its folding back, all adopted the connecting rod structure of a large amount of bendings, when folding under the condition of unfamiliar with beta structure, make these structures press from both sides the finger easily, and folding operation is comparatively loaded down with trivial details.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a foldable vehicle with a rear wheel that can be braked simultaneously in order to solve the above problems.

The utility model discloses the technical scheme who adopts as follows:

a folding bicycle with the rear wheels braked simultaneously comprises an underframe, a moving mechanism and a loading mechanism, wherein the moving mechanism is used for enabling the folding bicycle to move and braking the front wheels and the rear wheels simultaneously;

the loading mechanism is arranged at the upper end of the underframe, and the moving mechanism is arranged at the lower end of the loading mechanism;

loading mechanism includes four shrink strips, the shrink strip sets up four angle departments of chassis, each shrink strip upper end is fixed with L type frame, be provided with T type frame between the L type frame, be fixed with the loading frame in the middle of the T type frame, load the frame below and install two-way motor, just two-way motor with the chassis is fixed, two output coupling joints of two-way motor have the threaded spindle, the peripheral threaded connection of threaded spindle has the carriage, just the carriage both ends with the shrink strip is fixed, two of them shrink strip one end is fixed with the holding rod.

Preferably: the moving mechanism comprises four universal wheels, the universal wheels are arranged at the lower ends of the contraction strips, sleeve rods are arranged on the peripheries of the universal wheels, a connecting frame is arranged between the sleeve rods, and a pedal is fixed at one end of the connecting frame.

Preferably: the contraction strip is in sliding fit with the bottom frame, and the L-shaped frame is in sliding fit with the T-shaped frame.

Preferably: the middle of the loading frame is made of cloth.

Preferably: the universal wheel is in sliding fit with the loop bar.

Preferably: the loop bar is in sliding fit with the connecting frame.

Has the advantages that: when the folding bicycle needs to be folded when not in use, the bidirectional motor is started, the sliding fit of the sliding rack and the bottom frame and the sliding fit of the L-shaped frame and the T-shaped frame are realized through the threaded connection of the sliding rack and the threaded shaft and the sliding fit of the contraction strip and the bottom frame, the L-shaped frame can be retracted into the T-shaped frame after the bidirectional motor is started, the contraction strip is retracted into the bottom frame, the folding bicycle is folded, the space utilization rate is reduced, the folding bicycle is folded through the contraction mode, the folding bicycle can be realized only by starting the bidirectional motor, and the condition that fingers of people are clamped by the structure in the folding bicycle is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic structural view of a folding bicycle with rear wheels simultaneously braked according to the present invention;

fig. 2 is a front view of the folding bicycle with the rear wheels braked simultaneously according to the present invention;

fig. 3 is a main sectional view of the folding bicycle with the rear wheels braked simultaneously according to the present invention;

fig. 4 is a schematic structural diagram of a loading mechanism of a folding bicycle with rear wheels simultaneously braked according to the present invention;

fig. 5 is a schematic structural view of a folding cart moving mechanism with a rear wheel simultaneously braked according to the present invention.

The reference numerals are explained below:

1. a chassis; 2. a loading mechanism; 21. a shrink strip; 22. an L-shaped frame; 23. a T-shaped frame; 24. a loading frame; 25. a bi-directional motor; 26. a threaded shaft; 27. a carriage; 28. a holding rod; 3. a moving mechanism; 31. a universal wheel; 32. a loop bar; 33. a connecting frame; 34. a pedal.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships that are based on the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be further described with reference to the following examples and drawings.

As shown in fig. 1-5, a folding vehicle with rear wheels braked simultaneously comprises an underframe 1, a moving mechanism 3 which is used for making the device movable and can brake the front wheels and the rear wheels simultaneously, and a loading mechanism 2 which is used for placing sundries and can contract the device to reduce the space utilization rate;

the loading mechanism 2 is arranged at the upper end of the underframe 1, and the moving mechanism 3 is arranged at the lower end of the loading mechanism 2.

Referring to fig. 1-4, in the present embodiment, the loading mechanism 2 includes four shrinkage strips 21, the shrinkage strips 21 are slidably fitted at four corners of the bottom frame 1, an L-shaped frame 22 is welded at the upper end of each shrinkage strip 21, a T-shaped frame 23 is slidably fitted between the L-shaped frames 22, a loading frame 24 is bolted in the middle of the T-shaped frame 23, the middle of the loading frame 24 is made of a cloth material, a bidirectional motor 25 is installed below the loading frame 24, the bidirectional motor 25 is bolted to the bottom frame 1, two output end couplings of the bidirectional motor 25 are connected to a threaded shaft 26, a sliding frame 27 is screwed on the periphery of the threaded shaft 26, two ends of the sliding frame 27 are bolted to the shrinkage strips 21, and a holding rod 28 is welded at one end of each shrinkage strip 21; when the device need be folded when not using, start two-way motor 25, through the threaded connection of carriage 27 and threaded shaft 26 and shrink strip 21 and chassis 1's sliding fit and L type frame 22 and T type frame 23's sliding fit, can let L type frame 22 during the indentation T type frame 23 after starting two-way motor 25, let shrink strip 21 during the indentation chassis 1, thereby make the device fold, reduce its space utilization, fold the folding car through the mode of this kind of shrink, and only need start two-way motor 25 and just can realize, thereby avoid the condition that the structure presss from both sides people's finger in the device.

Referring to fig. 1, 2, 3, and 5, in the present embodiment, the moving mechanism 3 includes four universal wheels 31, the universal wheels 31 are disposed at the lower end of the contraction bar 21, a loop bar 32 is slidably fitted around the periphery of the universal wheels 31, a connecting frame 33 is slidably fitted between the loop bars 32, and a pedal 34 is welded at one end of the connecting frame 33; when needing to brake the car, people can step on footboard 34, through the sliding fit of universal wheel 31 with loop bar 32, trample footboard 34 back, footboard 34 drives loop bar 32 on the link 33 and descends to trigger the braking structure on the universal wheel 31 and realize braking simultaneously, through the sliding fit of loop bar 32 with link 33, make moving mechanism 3 can the cooperation device fold.

The working principle is as follows: when the folding bicycle is not used and needs to be folded, the two-way motor 25 is started, the L-shaped frame 22 can retract into the T-shaped frame 23 after the two-way motor 25 is started, the contraction strip 21 retracts into the underframe 1 through threaded connection of the sliding frame 27 and the threaded shaft 26 and sliding fit of the contraction strip 21 and the underframe 1, the space utilization rate of the folding bicycle is reduced, the folding bicycle is folded through the contraction mode, and the folding bicycle can be realized only by starting the two-way motor 25, so that the condition that fingers of people are clamped by the structure in the folding bicycle is avoided, when the bicycle needs to be braked, people can step on the pedal 34, the universal wheel 31 and the sleeve rod 32 are in sliding fit, after the pedal 34 is stepped on, the pedal 34 drives the sleeve rod 32 on the connecting frame 33 to descend, so as to trigger the braking structure on the universal wheel 31 to realize simultaneous braking, and the moving mechanism 3 can be matched with the device to be folded through sliding fit of the sleeve rod 32 and the connecting frame 33.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art.

Claims (6)

1. The utility model provides a folding car of rear wheel simultaneous braking, includes chassis (1), is used for making folding car remove and can make the moving mechanism (3) of front and rear wheels simultaneous braking, its characterized in that: the folding trolley is characterized by also comprising a loading mechanism (2) which is used for placing sundries and can enable the folding trolley to contract to reduce the space utilization rate;

the loading mechanism (2) is arranged at the upper end of the underframe (1), and the moving mechanism (3) is arranged at the lower end of the loading mechanism (2);

loading mechanism (2) are including four shrink strip (21), and four shrink strip (21) set up chassis (1) four angle departments, each shrink strip (21) upper end is fixed with L type frame (22), be provided with T type frame (23) between L type frame (22), be fixed with in the middle of T type frame (23) and load frame (24), load frame (24) below and install two-way motor (25), just two-way motor (25) with chassis (1) is fixed, two output coupling joints of two-way motor (25) have threaded spindle (26), threaded spindle (26) peripheral threaded connection has carriage (27), just carriage (27) both ends with shrink strip (21) are fixed, two of them shrink strip (21) one end is fixed with holding rod (28).

2. The folding cart with the simultaneously braked rear wheels as claimed in claim 1, characterized in that: moving mechanism (3) include four universal wheels (31), universal wheel (31) set up shrink strip (21) lower extreme, universal wheel (31) periphery is provided with loop bar (32), is provided with link (33) between loop bar (32), link (33) one end is fixed with footboard (34).

3. The folding cart with the rear wheels braked simultaneously as claimed in claim 1, characterized in that: the contraction strip (21) is in sliding fit with the bottom frame (1), and the L-shaped frame (22) is in sliding fit with the T-shaped frame (23).

4. The folding cart with the rear wheels braked simultaneously as claimed in claim 1, characterized in that: the middle of the loading frame (24) is made of cloth.

5. The folding cart with the rear wheels braked simultaneously as claimed in claim 2, characterized in that: the universal wheel (31) is in sliding fit with the loop bar (32).

6. The folding cart with the rear wheels braked simultaneously as claimed in claim 2, characterized in that: the loop bar (32) is in sliding fit with the connecting frame (33).

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