CN218617023U - Folding frame suitable for tricycle - Google Patents

Abstract

The utility model discloses a folding frame suitable for a tricycle, which comprises a main rod, a first rotating part used for arranging a tricycle head and a second rotating part used for arranging a rear wheel; the first rotating piece is rotatably arranged at the front end of the main rod and can rotate in a vertical plane; one end of the second rotating part is rotatably connected with one side of the main rod and can rotate in a vertical plane below the main rod. A second rotates the piece and can follow the mobile jib below the preceding rotation of direction to be close with the mobile jib anterior segment for setting up the rear wheel, sets up the first rotation piece of locomotive and also can upwards overturn foldingly, makes the tricycle wholly reduce front and back length under the prerequisite that does not increase left right width.

Description

Folding frame suitable for tricycle

Technical Field

The utility model relates to a children's tricycle field especially relates to a folding frame who is fit for tricycle.

Background

The foldable frame suitable for bicycles in the market at present, such as CN217623925U foldable electric bicycle frame, includes a main body mechanism, an adjusting mechanism and a folding mechanism, the adjusting mechanism is located in the middle of the front end of the main body mechanism, the folding mechanism is located in the middle of the main body mechanism, the folding mechanism includes a fixing plate, a thread groove, a sliding block, a rotating shaft, a rotating bolt and a rotating nut, the thread groove is fixedly arranged inside the lower end of the fixing plate, the sliding block is fixedly mounted on the upper end of the fixing plate, the rotating shaft is movably mounted on the inner end of the front end of the sliding block, the rotating bolt is threadedly mounted on the inner end of the thread groove, and the rotating nut is threadedly mounted on the left end of the rotating bolt. This foldable electric bicycle frame through installation sliding block and pivot, can make electric bicycle folding, has both saved its space that occupies like this in people's use, also conveniently carries when using outside.

The folding bicycle frame adopts the structure that the whole front section of the bicycle frame is bent leftwards/rightwards to be parallel to the rear section to complete folding, and the effect of reducing the front and rear length by folding is based on the increase of the left and right width. When folding with same technical scheme on the tricycle, because the rear width of tricycle itself is just big, often still do not conveniently accomodate because the width further increases after folding like this. Therefore, there is a need for a foldable frame that allows the tricycle to be folded to reduce the fore-aft length without increasing the width.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above disadvantages of the prior art, the present invention provides a foldable frame for a tricycle, which can be folded to reduce the length of the tricycle and prevent the tricycle from being widened.

The utility model provides a technical scheme that its technical problem adopted is:

a folding frame suitable for a tricycle comprises a main rod, a first rotating part and a second rotating part, wherein the first rotating part is used for arranging a tricycle head, and the second rotating part is used for arranging a rear wheel; the first rotating piece is rotatably arranged at the front end of the main rod and can rotate in a vertical plane; one end of the second rotating part is rotatably connected with one side of the main rod and can rotate in a vertical plane below the main rod.

Through adopting above-mentioned technical scheme for the second that sets up the rear wheel rotates to being close with the mobile jib anterior segment before can following the mobile jib below, and the first rotation piece that sets up the locomotive also can upwards overturn foldingly, makes the tricycle wholly reduce front and back length under the prerequisite that does not increase left right width.

As an improvement scheme, the device further comprises a connecting rod, wherein one end of the connecting rod is rotatably connected with the first rotating piece, and the other end of the connecting rod is rotatably connected with the second rotating piece.

Through adopting above-mentioned technical scheme, first rotation piece is connected through the connecting rod transmission with the second rotation piece, only need turn over the second rotation piece forward, will drive first rotation piece simultaneously and turn over upwards, reaches synchronous folding, simplifies the effect of folding operation.

As an improved scheme, the first rotating part comprises a vehicle head installation part extending forwards and a driven connection part extending downwards, the vehicle head installation part is provided with a head pipe matched with a vehicle head, and the connection rod is hinged with the driven connection part; the second rotates the piece middle section with the connecting rod is articulated, the second rotates the piece free end and is equipped with the wheel mounting groove that matches with the wheel.

As an improved scheme, a locking mechanism matched with the second rotating piece is arranged on the main rod; the locking mechanism comprises a button, a clamping piece and a resetting piece, and a bayonet matched with the clamping piece is arranged on the second rotating piece; the second rotating part rotates backwards to a state of being attached to the main rod, and the clamping piece is driven by the resetting piece to extend into the bayonet, so that the second rotating part is fixed with the main rod; the button with the joint spare is connected, can stir the button takes the joint spare away from affiliated bayonet socket, removes the second and rotates the locking state of piece and mobile jib. Further, joint spare is provided with the inclined plane in the below, this inclined plane position with the bayonet socket matches, and when the bayonet socket from up being close the mobile jib down, the bayonet socket is exerted pressure to the inclined plane, can push joint spare open to need not stir the button and also enable the second and rotate the piece and change to with mobile jib laminating position.

Through adopting above-mentioned technical scheme, the second rotates the piece and is rotating under the state of mobile jib back end, keeps the second to rotate the fixed of piece and mobile jib by locking mechanical system, when needs folding the frame, stirs the button and can remove fixedly, folds the frame, and fold condition when will recovering the expansion state and fix, only need rotate the piece backward upset with the second and can need not to stir button, convenient to use.

As an improvement, the connecting rod is connected to the first rotating member and the second rotating member by a detachable hinge member, and the first rotating member and/or the second rotating member is/are provided with a plurality of hinge positions matching with the connecting rod.

Through adopting above-mentioned technical scheme, the user can be through changing the hookup location of connecting rod on first rotation piece/second rotation piece, and the mutual position between first rotation piece and the second rotation piece is adjusted in a flexible way according to self needs.

As an improvement, the connecting rod is a telescopic structure with adjustable length.

Through adopting above-mentioned technical scheme, the user can be through the length that changes the connecting rod according to the mutual position between the first rotation piece of needs nimble adjustment of self and the second rotation piece.

As an improvement scheme, be equipped with seat installation base on the mobile jib, be equipped with the mounting groove that matches with multiple seat on the seat installation base.

Through adopting above-mentioned technical scheme, the user can assemble the seat of different grade type according to self needs.

As an improved scheme, a plurality of base mounting positions matched with the seat mounting base are arranged on the main rod.

By adopting the technical scheme, a user can adjust the front and back positions of the seat on the main rod according to self needs, for example, when legs are not long enough, the seat is adjusted to the position which is closer to the front so as to step on the pedals at two sides of the front wheel.

As an improved scheme, the second rotating part extends two mutually symmetrical free ends from two sides of the connecting end frame, wheel mounting grooves matched with wheels are formed in the two free ends, mounting shafts of the wheel mounting grooves are arranged on the same straight line, and the mounting grooves are through holes communicated with the two sides; the two wheel mounting grooves can be respectively provided with a rear wheel and can also be matched with the rear wheel.

By adopting the technical scheme, a user can install two rear wheels on two sides of the frame and can install one rear wheel in the middle of the frame, and the change from a tricycle to a bicycle is realized.

As an improvement scheme, the rear part of the main rod is provided with a setting hole matched with the rod piece.

Through adopting above-mentioned technical scheme, the user can set up the hole on and insert the handrail, and the manual children that push the tricycle belt and sit on the tricycle of being convenient for adult move.

Compared with the prior art, the beneficial effects of the utility model are that:

a second rotates the piece and can follow the mobile jib below the preceding rotation of direction to be close with the mobile jib anterior segment for setting up the rear wheel, sets up the first rotation piece of locomotive and also can upwards overturn foldingly, makes the tricycle wholly reduce front and back length under the prerequisite that does not increase left right width.

Drawings

Fig. 1 is an overall structure diagram of the folding frame suitable for the tricycle in the unfolding state.

Fig. 2 is a sectional structural view of the folding frame in the unfolded state of the present invention.

Fig. 3 is an overall structure diagram of the folding frame suitable for the tricycle in a folding state.

Fig. 4 is a cross-sectional structural view of the folding frame suitable for the tricycle in a folded state.

Fig. 5 is the utility model relates to a folding frame who is fit for the tricycle has installed the locomotive in fold condition, front wheel, rear wheel, the reference schematic diagram of playing up under the seat state.

Wherein, 1: a main rod; 2: a first rotating member; 3: a second rotating member; 4: a connecting rod; 5: a headstock mounting part; 6: a first pipe; 7: a passive connection; 8: a wheel mounting groove; 9: a button; 10: a clamping piece; 11: a reset member; 12: a bayonet; 13: an inclined surface; 14: a seat mounting base; 15: an aperture is provided.

Detailed Description

The invention will now be further described with reference to the accompanying drawings, in which:

the present invention will be further described with reference to the following specific embodiments. It should be understood that the following examples are illustrative of the present invention only and are not intended to limit the scope of the present invention.

It should be noted that when a component/part is referred to as being "disposed on" another component/part, it can be directly on the other component/part or intervening components/parts may also be present. When a component/part is referred to as being "connected/coupled" to another component/part, it can be directly connected/coupled to the other component/part or intervening components/parts may also be present. The term "connected/coupled" as used herein may include electrical and/or mechanical physical connections/couplings. The term "comprises/comprising" when used herein, is taken to specify the presence of stated features, steps or components/features, but does not preclude the presence or addition of one or more other features, steps, components/features. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. In addition, in the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and to distinguish similar objects, and there is no order of precedence between the two, and no indication or implication of relative importance is to be inferred. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways to implement the methods, devices, and/or systems described herein that will be apparent upon understanding the present disclosure.

As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.

Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.

The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application.

The first embodiment is as follows:

as shown in the attached figures 1-5, a folding frame suitable for a tricycle comprises a main rod 1, a first rotating part 2 used for arranging a tricycle head, and a second rotating part 3 used for arranging a rear wheel; the first rotating part 2 is rotatably arranged at the front end of the main rod 1 and can rotate in a vertical plane; one end of the second rotating part 3 is rotatably connected with one side of the main rod 1 and can rotate in a vertical plane below the main rod 1.

A second rotates piece 3 for setting up the rear wheel can follow 1 lower side of mobile jib and rotate to being close with 1 anterior segment of mobile jib, and the first rotation piece 2 that sets up the locomotive also can upwards overturn foldingly, makes the tricycle wholly reduce front and back length under the prerequisite that does not increase left right width.

Still include connecting rod 4, connecting rod 4 one end with first rotation piece 2 rotates to be connected, the other end with second rotation piece 3 rotates to be connected.

The first rotating part 2 and the second rotating part 3 are in transmission connection through the connecting rod 4, and the first rotating part 2 can be driven to be turned upwards only by turning the second rotating part 3 forwards, so that synchronous folding is achieved, and the effect of folding operation is simplified.

The first rotating part 2 comprises a headstock mounting part 5 extending forwards and a driven connecting part 7 extending downwards, the headstock mounting part 5 is provided with a head pipe 6 matched with a headstock, and the connecting rod 4 is hinged with the driven connecting part 7; the second rotates 3 middle sections with connecting rod 4 is articulated, the second rotates 3 free ends of piece and is equipped with the wheel mounting groove 8 that matches with the wheel.

The main rod 1 is provided with a locking mechanism matched with the second rotating part 3; the locking mechanism comprises a button 9, a clamping piece 10 and a resetting piece 11, and a bayonet 12 matched with the clamping piece 10 is arranged on the second rotating piece 3; when the second rotating part 3 rotates backwards to be attached to the main rod 1, the clamping part 10 is driven by the resetting part 11 to extend into the bayonet 12, so that the second rotating part 3 is fixed with the main rod 1; the button 9 is connected with the clamping piece 10, and can be used for shifting the button 9 to bring the clamping piece 10 away from the clamping opening 12, so that the locking state of the second rotating piece 3 and the main rod 1 is released. Further, joint spare 10 is provided with inclined plane 13 in the below, this inclined plane 13 position with bayonet 12 matches, when bayonet 12 from up being close mobile jib 1 down, bayonet 12 exerts pressure to inclined plane 13, can push away joint spare 10 to need not stir button 9 and also enable the second and rotate 3 and change to the position of laminating with mobile jib 1.

The second rotates piece 3 and is rotating under the state of 1 back end of mobile jib to, keeps the second to rotate the fixed of piece 3 and mobile jib 1 by locking mechanical system, when needing to fold the frame, stir button 9 and can remove fixedly, folds the frame, and fold condition when will resume the expansion state and fix, only need rotate piece 3 with the second and overturn backward can need not to stir button 9, convenient to use.

The connecting rod 4 is connected with the first rotating piece 2 and the second rotating piece 3 through detachable hinge pieces, and a plurality of hinge positions matched with the connecting rod 4 are arranged on the first rotating piece 2 and/or the second rotating piece 3.

The user can flexibly adjust the mutual position between the first rotating member 2 and the second rotating member 3 according to the self requirement by changing the connecting position of the connecting rod 4 on the first rotating member 2/the second rotating member 3.

The connecting rod 4 is a telescopic structure with adjustable length.

The user can flexibly adjust the mutual position between the first rotating member 2 and the second rotating member 3 according to his own needs by changing the length of the connecting rod 4.

The main rod 1 is provided with a seat installation base 14, and the seat installation base 14 is provided with installation grooves matched with various seats.

The user can assemble different types of seats according to the needs of the user.

The main rod 1 is provided with a plurality of base mounting positions matched with the seat mounting base 14.

By adopting the technical scheme, a user can adjust the front and back positions of the seat on the main rod 1 according to the self requirement, for example, when the legs are not long enough, the seat is adjusted to the position close to the front so as to step on the pedals at the two sides of the front wheel.

The second rotating part 3 extends out of two symmetrical free ends from two sides of the connecting end frame, wheel mounting grooves 8 matched with wheels are formed in the two free ends, mounting shafts of the wheel mounting grooves 8 are on the same straight line, and the mounting grooves are through holes communicated with the two sides; the two wheel mounting grooves 8 can be respectively provided with a rear wheel and can also be matched with the rear wheel.

A user can install two rear wheels on two sides of the frame and can install one rear wheel in the middle of the frame, and the tricycle can be converted into the bicycle.

The rear part of the main rod 1 is provided with a setting hole 15 matched with the rod piece.

The user can insert the hand-rest rod on the arrangement hole 15, so that the child sitting on the tricycle can be moved conveniently by an adult manually pushing the tricycle belt.

The folding and unfolding process principle of the frame is as follows:

as shown in fig. 1 and 2, in the unfolded state of the frame, the front end of the main rod is hinged with the first rotating part in an up-and-down rotating mode, the second rotating part is hinged below the middle of the main rod, the front end of the connecting rod is hinged with the driven connecting part of the first rotating part, and the rear end of the connecting rod is hinged to the front part, close to the main rod, of the second rotating part. The first rotating piece extends forwards to form a vehicle head installation portion, and a first pipe used for installing a vehicle head is arranged at the front end of the vehicle head installation portion. The second rotating parts extend towards the two sides of the rear part, and the tail ends of the second rotating parts are respectively provided with a wheel mounting groove for mounting a rear wheel, and pedal platforms for placing feet are further arranged between the forking positions of the second rotating parts and the wheel mounting grooves as shown in the figure. The bayonet of the second rotating part in the unfolding state is limited and fixed by the clamping piece, so that the second rotating part cannot turn over forwards and is fixed with the rear half section of the main rod; and due to the linkage of the connecting rods, the first rotating piece is fixed and cannot turn over.

When needs are folding, with the button right-hand in the drawing, also be the frame rear and stir, the joint spare moves right and removes stopping to the second rotation piece, rotates the second this moment and overturns forward downwards, simultaneously because the linkage of connecting rod, the synchronous forward upset of first rotation piece to the mobile jib front upper side. At this time, the frame is in the state shown in fig. 3 and 4, and the second rotating member originally located at the rear part of the main rod is folded to the front half part of the main rod and drives the rear wheel to move to the front part of the main rod. Originally, be located the first commentaries on classics piece in mobile jib dead ahead and rotate to mobile jib front end top to the handle that drives the locomotive removes the dead ahead of mobile jib from the mobile jib front end top, and the preceding wheel that drives the locomotive removes to the mobile jib dead ahead from mobile jib front end below. So far, the frame is accomplished and is folded, and the whole front and back length of tricycle reduces, and whole height from top to bottom reduces, and whole left and right sides width is unchangeable.

To sum up, after the ordinary skilled person in the art reads the utility model discloses a file, according to the utility model discloses a technical scheme and technical conception need not creative mental work and make other various corresponding transform schemes, and different application scenes all belong to the utility model discloses the scope of protecting.

Claims (10)

1. A folding frame suitable for a tricycle is characterized by comprising a main rod (1), a first rotating part (2) used for arranging a tricycle head, and a second rotating part (3) used for arranging a rear wheel; the first rotating piece (2) is rotatably arranged at the front end of the main rod (1) and can rotate in a vertical plane; one end of the second rotating part (3) is rotatably connected with one side of the main rod (1) and can rotate in a vertical plane below the main rod (1).

2. A foldable frame for a tricycle according to claim 1, characterized in that it further comprises a connecting rod (4), one end of the connecting rod (4) being rotatably connected to the first rotating member (2) and the other end being rotatably connected to the second rotating member (3).

3. The folding frame for tricycles as claimed in claim 2, wherein said first rotating member (2) comprises a forward-extending head mounting portion (5) and a downward-extending driven connecting portion (7), said head mounting portion (5) being provided with a head tube (6) matching the head, said connecting rod (4) being hinged to said driven connecting portion (7); the second rotates piece (3) middle section with connecting rod (4) are articulated, the second rotates piece (3) free end and is equipped with wheel mounting groove (8) that match with the wheel.

4. A foldable frame for tricycles as claimed in claim 1, wherein said main rod (1) is provided with a locking mechanism matching said second rotary member (3); the locking mechanism comprises a button (9), a clamping piece (10) and a resetting piece (11), and a bayonet (12) matched with the clamping piece (10) is arranged on the second rotating piece (3); the second rotating part (3) rotates backwards to be attached to the main rod (1), and the clamping piece (10) is driven by the resetting piece (11) to extend into the bayonet (12), so that the second rotating part (3) is fixed with the main rod (1); button (9) with joint spare (10) are connected, can stir button (9) take joint spare (10) from affiliated bayonet socket (12), remove the second and rotate the locking state who piece (3) and mobile jib (1).

5. A foldable frame for tricycles as claimed in claim 2, wherein said connecting rod (4) is connected to said first (2) and second (3) rotating members by means of detachable hinges, said first (2) and/or second (3) rotating members being provided with a plurality of hinge positions matching with the connecting rod (4).

6. A foldable frame for a tricycle according to claim 2, characterised in that the connecting rod (4) is of a telescopic construction with adjustable length.

7. The foldable frame for three-wheeled vehicles according to claim 1, wherein the main rod (1) is provided with a seat mounting base (14), and the seat mounting base (14) is provided with mounting grooves matched with various seats.

8. A foldable frame for a tricycle according to claim 7, characterised in that the main bar (1) is provided with a number of seat mounting locations matching the seat mounting base (14).

9. A foldable frame for a tricycle according to claim 3, characterised in that the second rotary part (3) extends from the connecting end to both sides of the frame with two symmetrical free ends, where the two free ends are provided with wheel mounting slots (8) matching with the wheels, and where the two wheel mounting slots (8) are capable of mounting one rear wheel each and also of fitting one rear wheel.

10. The foldable frame for tricycle according to claim 1 characterized by that the main rod (1) has a hole (15) at the rear for matching with the rod.

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