CN207523863U - Foldable frame and foldable vehicle - Google Patents

Abstract

The utility model discloses a foldable frame and a foldable vehicle comprising the same, wherein the foldable frame comprises a front frame, a rear frame, a steering system and a push rod capable of extending up and down; the first end of the front frame is hinged with the steering system, and the second end of the front frame is hinged with the first end of the rear frame; the first end of the push rod is hinged with the steering system, and the second end of the push rod is hinged with the second end of the front frame, so that the steering system, the front frame and the push rod form a three-link mechanism with a variable structure; when the push rod is contracted, the front frame is unfolded relative to the rear frame, and the frame is in an open state; when the push rod extends, the second end of the push rod is hinged with the front frame, the hinged part of the push rod and the front frame enables the front frame to rotate in a vertical plane relative to the rear frame, and the front frame rotates relative to the rear frame, so that the vertical folding of the frame is realized. The utility model discloses a collapsible frame and contain the folding car of this collapsible frame can realize vertical folding.

Description

Foldable chassis and folded bicycle

Technical field

The utility model is related to technical field of transportation means, and in particular to a kind of foldable chassis and include the Foldable car The folded bicycle of frame.

Background technology

At present, storage space, portable is reduced since folded bicycle (e.g., electric motor bicycle with folding, folding bicycle) has The advantages that, folded bicycle has been widely deployed and has applied.

Wherein, the core of folded bicycle is folding vehicle frame.Existing foldable chassis is mostly horizontal folding；Allusion quotation The type of type is to implement docking and separation to vehicle frame main beam using ring flange+locker, can make the length reduction of vehicle frame in this way, So as to reduce the whole occupied space of bicycle.But the folded bicycle of such horizontal folding mode, vehicle can not be passed through after folding again Wheel movement, difficult；Moreover, its vehicle frame folding is complicated for operation, mostly by by hand, labor intensity is big and operation is unclean Only；In addition, it is untidy to fold later car shape, it has not been convenient to store.

Utility model content

The purpose of this utility model is to provide a kind of novel foldable chassis and the folded bicycle comprising the foldable chassis, It can realize vertical folding.

To achieve the above object, a kind of foldable chassis provided by the utility model including front frame, Rear frame, turns To system, push rod flexible up and down can be achieved；

The front frame, Rear frame and push rod include both ends, are denoted as first end and second end；The first of the front frame End is hinged with the steering, and the second end of the front frame and the first end of the Rear frame are hinged；

The first end of the push rod is hinged with the steering, the second end of the push rod and the second of the front frame End is hinged, so that the steering, front frame and push rod form the three-link mechanism of structurally variable；

When the push rod is shunk, the relatively described Rear frame expansion of the front frame, the vehicle frame is in opening state；

When the push rod extends, the relatively described Rear frame of the front frame rotates in perpendicular, thus real The vertical folding of the existing vehicle frame.

In above-mentioned foldable chassis, the second end of the push rod is telescopic end, and work as the vehicle frame in the open state, The push rod be located at the lower section of the front frame simultaneously can relatively described steering extend upwards.

In above-mentioned foldable chassis, seat-assembly is further included, the seat-assembly is located at the front frame with the push rod Not homonymy；

The seat-assembly includes seat carrier, seat body, seat strut；The seat carrier and seat strut wrap Both ends are included, are denoted as first end and second end；

Extend fore-stock to the side of the seat-assembly at the second end of the front frame；

The first end of the seat carrier is hinged with the fore-stock, and the second end of the seat carrier connects the seat Ontology, first end and the seat body of the seat strut are hinged, second end and the Rear frame of the seat strut It is hinged, so that the seat carrier, seat body, seat strut, fore-stock form the four-bar mechanism of structurally variable.

In above-mentioned foldable chassis, seat-assembly is further included, the seat-assembly is located at the front frame with the push rod Not homonymy；

The seat-assembly includes seat carrier, seat body, seat strut and electric pushrod；The seat strut includes First support unit and the second support unit；The electric pushrod, the first support unit and the second support unit include both ends, It is denoted as first end and second end；The second end of first support unit and the first end of second support unit are hinged；

Extend fore-stock to the side of the seat-assembly at the second end of the front frame；

The first end of the seat carrier is hinged with the fore-stock, and the second end of the seat carrier connects the seat Ontology, first end and the seat body of first support unit are hinged, the second end of second support unit and institute Rear frame is stated to be hinged；The first end of the electric pushrod and the first end of the Rear frame are hinged, and the second of the electric pushrod The second end with second support unit is held to be hinged.

In above-mentioned foldable chassis, the steering includes steering assembly, the front-wheel below the steering assembly Mounting assembly；The second end of the Rear frame is equipped with trailing wheel mounting bracket；The push rod is located at the front frame with the fore-stock Not homonymy, the first end of the push rod is hinged with the front-wheel mounting assembly.

In above-mentioned foldable chassis, the front-wheel mounting assembly includes two front-wheel mounting brackets being arranged in parallel, and described Trailing wheel mounting bracket is equal with the spacing of each front-wheel mounting bracket.

In above-mentioned foldable chassis, the steering assembly includes handle, steering shaft, steering column, transmission shaft；

The handle is mounted in the steering shaft, and the steering shaft passes through the steering column to be rotated with the transmission shaft Connection, the lower end of the transmission shaft connect the front-wheel mounting assembly.

In above-mentioned foldable chassis, the steering column and the first end of the front frame are hinged.

In above-mentioned foldable chassis, the push rod is electric pushrod.

In above-mentioned foldable chassis, the hinge of the hinged place of the front frame and Rear frame, the steering column and front frame The place of connecing is equipped with locking system.

In order to solve the technical issues of identical, the utility model additionally provides a kind of folded bicycle, including any of the above-described skill The foldable chassis of art scheme.

A kind of foldable chassis that above-mentioned technical proposal is provided and the folded bicycle comprising the foldable chassis, due to push rod The flexible of upper and lower directions can be carried out, and the second end of push rod is hinged with front frame, so, when push rod extends, push rod and front truck The articulated section of frame can cause front frame to rotate in perpendicular with respect to Rear frame, thus can realize the vertical folding of vehicle frame It is folded.

Description of the drawings

Fig. 1 is the structure diagram one of the foldable chassis of the utility model in the open state；

Fig. 2 is the structure diagram two of the foldable chassis of the utility model in the open state；

Position view when Fig. 3 is the Rear frame of the foldable chassis of Fig. 1 and seat-assembly is in folded state；

Position view when Fig. 4 is the Rear frame of the foldable chassis of Fig. 2 and seat-assembly is in folded state；

Decomposition diagram when Fig. 5 is the front frame of the foldable chassis of Fig. 1 and steering is in folded state.

Wherein, 1, front frame；11st, the second end of front frame；12nd, fore-stock；2nd, Rear frame；21st, the second end of Rear frame； 22nd, trailing wheel mounting bracket；3rd, push rod；31st, the second end of push rod；41st, handle；42nd, steering shaft；43rd, steering column；44th, transmission shaft； 45th, front-wheel mounting assembly；51st, seat carrier；52nd, seat body；53rd, seat strut；531st, the second end of seat strut；54、 Electric pushrod；551st, the first support unit；552nd, the second support unit.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment is used to illustrate the utility model, but be not intended to limit the scope of the present invention.

With reference to shown in Fig. 1 to Fig. 5, a kind of foldable chassis provided by the utility model, including front frame 1, Rear frame 2nd, steering, the achievable push rod 3 to stretch up and down；

Front frame 1, Rear frame 2 and push rod 3 include both ends, are denoted as first end and second end；The first end of front frame 1 with Steering is hinged, and the second end 11 and the first end of Rear frame 2 of front frame are hinged；

The first end of push rod 3 is hinged with steering, and the second end 31 of push rod is hinged with the second end 11 of front frame, so that Steering, front frame 1 form the three-link mechanism of structurally variable with push rod 3；

When push rod 3 is shunk, front frame 1 is unfolded with respect to Rear frame 2, and vehicle frame is in opening state；

When push rod 3 extends, since push rod 3 can carry out stretching, and the second end 31 and front truck of push rod in upper and lower directions Frame 1 is hinged, and the articulated section of push rod 3 and front frame 1 can cause front frame 1 to rotate in perpendicular with respect to Rear frame 2, by This realizes the vertical folding of vehicle frame.

With reference to shown in Fig. 1, Fig. 2, Fig. 5, it is preferable that the second end 31 of push rod is telescopic end, and when vehicle frame is in open shape During state, the lower section that push rod 3 is located at front frame 1 simultaneously can upwards be extended with respect to steering, so not only ease of assembly, Er Qieke So that the second end 11 of front frame is rotated up in perpendicular, folding operation is easy to implement.

With reference to shown in Fig. 1 and Fig. 2, the foldable chassis of the utility model embodiment further includes seat-assembly, seat-assembly It is located at the not homonymy of front frame 1 with push rod 3；

With reference to shown in Fig. 1 and Fig. 3, seat-assembly may be used the mode that mechanical linkage is servo-actuated realize it is foldable, at this point, seat Chair component includes seat carrier 51, seat body 52, seat strut 53；Seat carrier 51 and seat strut 53 include both ends, It is denoted as first end and second end；Extend fore-stock 12 to the side of seat-assembly at the second end 11 of front frame；

The first end of seat carrier 51 is hinged with fore-stock 12, the second end connecting chair ontology 52 of seat carrier 51, seat The first end of chair strut 53 is hinged with seat body 52, and the second end 531 and Rear frame 2 of seat strut are hinged, so that seat support Frame 51, seat body 52, seat strut 53, fore-stock 12 form the four-bar mechanism of structurally variable；It designs in this way, a side Face, current vehicle frame 1 rotates with respect to Rear frame 2 in perpendicular, and (using Fig. 1 as reference standard, front frame 1 carries out counterclockwise Rotation) when, the first end of Rear frame 2 is also rotated up that (using Fig. 1 as reference standard, Rear frame 2 carries out in vertical level simultaneously Rotate clockwise), realize the vertical folding of front frame 1 and Rear frame 2；On the other hand, can cause, Rear frame 2 is in rotation In the process, seat carrier 51, seat body 52, seat strut 53 is driven to be rotated around respective hinged place, it is final to realize seat group The folding of part, as seat carrier 51 and seat body 52 can be rotated clockwise under the drive of fore-stock 12 (using Fig. 1 as reference Standard), seat strut 53 can rotate clockwise (using Fig. 1 as reference standard) under the drive of Rear frame 2 and seat body 52.

With reference to shown in Fig. 2 and Fig. 4, seat-assembly can also be realized by the way of electronic strut it is foldable, at this point, seat Component further includes electric pushrod 54, seat strut, seat strut includes first in addition to including seat carrier 51, seat body 52 551 and second support unit 552 of support unit；Electric pushrod 54, the first support unit 551 and the second support unit 552 wrap Both ends are included, are denoted as first end and second end；The second end of first support unit 551 and the first end of the second support unit 552 are cut with scissors It connects；

Extend fore-stock 12 to the side of seat-assembly at the second end 11 of front frame；

The first end of seat carrier 51 is hinged with fore-stock 12, the second end connecting chair ontology 52 of seat carrier 51, the The first end of one support unit 551 is hinged with seat body 52, and second end 531 and the Rear frame 2 of the second support unit 552 are cut with scissors It connects；The first end of electric pushrod 54 and the first end of Rear frame 2 are hinged, the second end of electric pushrod 54 and the second support unit 552 second end 531 is hinged；The second end of electric pushrod 54 is telescopic end；

When vehicle frame starts to open up, electric pushrod 54 extends, and makes the first end of the second support unit 552 to far from front frame 1 direction rotation, seat body 52 are in use state；

When vehicle frame starts to fold vertically, electric pushrod 54 is shunk, and makes the first end of the second support unit 552 to by nearby The direction rotation of vehicle frame 1, so as to fold seat body 52.

With reference to shown in Fig. 1, Fig. 2 and Fig. 5, steering includes steering assembly, the front-wheel installation below steering assembly Component 45；The second end 21 of Rear frame is equipped with trailing wheel mounting bracket 22；Push rod 3 is located at the not homonymy of front frame 1 with fore-stock 12, pushes away The first end of bar 3 is hinged with front-wheel mounting assembly 45.

Preferably, front-wheel mounting assembly 45 includes two front-wheel mounting brackets being arranged in parallel, and trailing wheel mounting bracket 22 with it is every The spacing of a front-wheel mounting bracket is equal, can cause vehicle frame in this way during folding, always in stable state.

With reference to shown in Fig. 1, Fig. 2 and Fig. 5, steering assembly includes handle 41, steering shaft 42, steering column 43, transmission shaft 44；

Handle 41 is mounted in steering shaft 42, and steering shaft 42 is rotatablely connected across steering column 43 with transmission shaft 44, transmission The lower end connection front-wheel mounting assembly 45 of axis 44.

Preferably, steering column 43 and the first end of front frame 1 are hinged, and can ensure the stability of vehicle frame entirety in this way.

Preferably, for push rod 3 to be also electric pushrod, which can be current turbomachinery formula existing on the market Electric pushrod may be such that vehicle frame can realize auto-folder and opening, without manual operations in this way.

Preferably, front frame 1 and hinged place, steering column 43 and the hinged place of front frame 1 of Rear frame 2 are equipped with locking Device (not shown) can ensure the safety and stability of vehicle frame in use in this way.

With reference to Fig. 1, Fig. 3 and Fig. 5 to a kind of operation principle of embodiment of folding stand, folding process and opened Journey is further described：

Operation principle：Steering, front frame 1 and push rod 3 constitute the three-link mechanism that a structure can actively change, Seat carrier 51, seat body 52, seat strut 53, fore-stock 12 constitute the double leval jib machine that a structure can passively change Structure；Since front frame 1 and fore-stock 12 are integral structure, allowing for two link mechanisms in this way can link, and make front frame 1 It is completed simultaneously with the folding process of Rear frame 2 and the folding process of seat-assembly.

Vehicle frame folding process：(with reference to figure 1, Fig. 3 and Fig. 5)

For ease of understanding, entire folding process is decomposed into leading portion folding and back segment folds to describe respectively：

Leading portion folds：

Fig. 1 is vehicle frame opening state, and push rod 3 is retracted to limit position at this time；

When push rod 3 extends, the articulated section of push rod 3 and front frame 1 can cause front frame 1 to be rotated counterclockwise (using Fig. 1 as ginseng Sighting target is accurate), when push rod 3 is elongated to limit position, front frame 1 reaches vertical state and is contacted with the fitting of Rear frame 2；

Back segment folds：

While leading portion folds, Rear frame 2 can be made under gravity around the hinged place of Rear frame 2 and front frame 1 It rotates clockwise (using Fig. 1 as reference standard)；Meanwhile seat carrier 51 and seat body 52 make under the drive of fore-stock 12 it is suitable Hour hands are rotated (using Fig. 1 as reference standard), and seat strut 53 is suitable at its link under the drive of Rear frame 2 and seat body 52 Hour hands are rotated (using Fig. 1 as reference standard)；

When push rod 3 is elongated to limit position, front frame 1 turns to vertical state, by seat carrier 51, seat body 52, The four-bar mechanism that seat strut 53, fore-stock 12 are formed also achieves closure and folds, at this time each component locations of seat-assembly As shown in Figure 3.

Vehicle frame opening procedure (with reference to figure 1)：

When push rod 3 is shunk, the motion process of each component with folded state on the contrary, when push rod 3 shortens to limit position, vehicle Frame is opened completely；

Stablize safety traffic to realize, after vehicle frame is opened completely, the hinged place of front frame 1 and Rear frame 2, steering column The 43 locking system mechanical cagings set with the hinged place of front frame 1.

With reference to shown in Fig. 1 to Fig. 5, foldable chassis provided by the utility model may be used in folded bicycle, make to include The folded bicycle of the utility model embodiment can be folded vertically.

To sum up, the foldable chassis of the utility model and the folded bicycle comprising the foldable chassis, since push rod 3 can carry out Upper and lower directions is stretched, and the second end 31 of push rod and front frame 1 are hinged, so, when push rod 3 extends, push rod 3 and front frame 1 articulated section can cause front frame 1 to rotate in perpendicular with respect to Rear frame 2, thus can realize the vertical folding of vehicle frame It is folded.

It the above is only the preferred embodiment of the utility model, it is noted that for the ordinary skill people of the art Member for, under the premise of the utility model technical principle is not departed from, several improvement and replacement can also be made, these improve and Replacement also should be regarded as the scope of protection of the utility model.

Claims (10)

1. a kind of foldable chassis, which is characterized in that including front frame, Rear frame, steering, upper and lower flexible push away can be achieved Bar；

The front frame, Rear frame and push rod include both ends, are denoted as first end and second end；The first end of the front frame with The steering is hinged, and the second end of the front frame and the first end of the Rear frame are hinged；

The first end of the push rod is hinged with the steering, and the second end of the push rod and the second end of the front frame are cut with scissors It connects, so that the steering, front frame and push rod form the three-link mechanism of structurally variable；

When the push rod is shunk, the relatively described Rear frame expansion of the front frame, the vehicle frame is in opening state；

When the push rod extends, the relatively described Rear frame of the front frame rotates in perpendicular, is achieved in institute State the vertical folding of vehicle frame.

2. foldable chassis as described in claim 1, which is characterized in that the second end of the push rod is telescopic end, and works as institute State vehicle frame in the open state, the push rod be located at the lower section of the front frame simultaneously can relatively described steering stretch upwards It is long.

3. foldable chassis as described in claim 1, which is characterized in that further include seat-assembly, the seat-assembly and institute State the not homonymy that push rod is located at the front frame；

The seat-assembly includes seat carrier, seat body, seat strut；The seat carrier and seat strut include two End, is denoted as first end and second end；

Extend fore-stock to the side of the seat-assembly at the second end of the front frame；

The first end of the seat carrier is hinged with the fore-stock, and the second end of the seat carrier connects the seat sheet Body, first end and the seat body of the seat strut are hinged, and second end and the Rear frame of the seat strut are cut with scissors It connects, so that the seat carrier, seat body, seat strut, fore-stock form the four-bar mechanism of structurally variable.

4. foldable chassis as described in claim 1, which is characterized in that further include seat-assembly, the seat-assembly and institute State the not homonymy that push rod is located at the front frame；

The seat-assembly includes seat carrier, seat body, seat strut and electric pushrod；The seat strut includes first Support unit and the second support unit；The electric pushrod, the first support unit and the second support unit include both ends, are denoted as First end and second end；The second end of first support unit and the first end of second support unit are hinged；

Extend fore-stock to the side of the seat-assembly at the second end of the front frame；

The first end of the seat carrier is hinged with the fore-stock, and the second end of the seat carrier connects the seat sheet Body, first end and the seat body of first support unit are hinged, the second end of second support unit with it is described Rear frame is hinged；The first end of the electric pushrod and the first end of the Rear frame are hinged, the second end of the electric pushrod It is hinged with the second end of second support unit.

5. foldable chassis as claimed in claim 3, which is characterized in that the steering includes steering assembly, set on institute State the front-wheel mounting assembly below steering assembly；The second end of the Rear frame is equipped with trailing wheel mounting bracket；The push rod with it is described Fore-stock is located at the not homonymy of the front frame, and the first end of the push rod is hinged with the front-wheel mounting assembly.

6. foldable chassis as claimed in claim 5, which is characterized in that the front-wheel mounting assembly is arranged in parallel including two Front-wheel mounting bracket, and the trailing wheel mounting bracket is equal with the spacing of each front-wheel mounting bracket.

7. foldable chassis as claimed in claim 5, which is characterized in that the steering assembly includes handle, steering shaft, steering Tubing string, transmission shaft；

The handle is mounted in the steering shaft, and the steering shaft passes through the steering column to connect with transmission shaft rotation It connects, the lower end of the transmission shaft connects the front-wheel mounting assembly.

8. foldable chassis as claimed in claim 7, which is characterized in that the steering column and the first end of the front frame It is hinged.

9. foldable chassis as claimed in claim 8, which is characterized in that the hinged place of the front frame and Rear frame, described The hinged place of steering column and front frame is equipped with locking system.

10. a kind of folded bicycle, which is characterized in that including such as claim 1-9 any one of them foldable chassis.