CN215043398U - Folding frame of light bicycle - Google Patents

Abstract

The utility model discloses a light bicycle folding chassis, its technical scheme main points are: the main beam body comprises a first supporting beam and a second supporting beam, the end part of the first supporting beam and the end part of the second supporting beam are respectively and fixedly connected with a first connecting block and a second connecting block, the first connecting block is hinged with the second connecting block, a fixed block is fixedly connected onto the first connecting block, a rotating handle is rotatably connected onto the fixed block, an embedded block is fixedly connected onto the end surface of the rotating handle, an embedded groove for the embedded block to be embedded into is formed in the second connecting block, a rectangular block is fixedly connected onto the second supporting beam, a rectangular groove for the rotating handle to be embedded into is formed in the rectangular block, a positioning pin is slidably connected onto the rectangular block, and a spring is sleeved outside the positioning pin; the folding type portable folding chair can be folded, saves occupied space and is convenient to carry and transport.

Description

Folding frame of light bicycle

Technical Field

The utility model relates to a bicycle field, in particular to light bicycle folding chassis.

Background

Bicycles, also known as bicycles or bicycles, are typically two-wheeled small land vehicles. After a person rides the vehicle, the person steps on the pedal as power, so that the vehicle is an environment-friendly vehicle; the frame of the bicycle is the main load-bearing structure of the bicycle.

Reference is made to chinese patent publication No. CN1817724A, which discloses a bicycle frame, and provides a fully articulated bicycle frame with a variable structure. The bicycle frame is characterized in that one ends of a first straight rod and an eighth straight rod are hinged to the upper end of a front vertical pipe, the other end of the first straight rod is hinged to a first hinge component with one ends of a second straight rod and a third straight rod respectively, the other ends of the second straight rod and the third straight rod are hinged to a second hinge component and a third hinge component with one ends of a fifth straight rod and a fourth straight rod respectively, the other ends of the fifth straight rod and the fourth straight rod are hinged to two ends of a fourth hinge component respectively, the other end of the eighth straight rod is hinged to the fourth hinge component, the middle of the fourth hinge component is hinged to one end of a sixth straight rod, the other end of the sixth straight rod is movably connected to the first hinge component, and a seventh straight rod is arranged at the lower end of the front vertical pipe and the middle of the fourth hinge component.

Above-mentioned patent has the simple and easy of frame dismouting, and structure transform convenient and fast's advantage, but it also has the defect, if: it can not be folded and occupies a large space when being stored.

SUMMERY OF THE UTILITY MODEL

To the problem mentioned in the background art, the utility model aims at providing a light bicycle folding chassis to solve the problem mentioned in the background art.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a folding frame of light bicycle, includes the girder body, the girder body includes first strutbeam and second strutbeam, the tip of first strutbeam with the tip of second strutbeam is the first connecting block of fixedly connected with and second connecting block respectively, first connecting block with the second connecting block is articulated, fixedly connected with fixed block on the first connecting block, the swivelling joint has the turning handle on the fixed block, turning handle's terminal surface fixedly connected with inlays the piece, set up the confession on the second connecting block the embedded groove of embedding piece embedding, fixedly connected with rectangular block on the second strutbeam, set up the confession on the rectangular block the rectangular groove of turning handle embedding, sliding connection has the locating pin on the rectangular block, the outside cover of locating pin is equipped with the spring, the top fixedly connected with pull rod of locating pin.

The folding frame of the light bicycle can enable the main beam body to be folded in one direction by matching the first supporting beam, the second supporting beam, the first connecting block, the second connecting block, the embedding groove and the rotating handle, thereby achieving the purposes of folding, saving occupied space and being convenient to carry and transport;

this folding frame of light bicycle through the setting of rectangle piece, locating pin and spring, can carry on spacingly to the turning handle, avoids turning handle skew in the use, leads to first strutbeam and second strutbeam separation and has the potential safety hazard, reaches and effectively limits turning handle, improves the purpose of safety in utilization.

Preferably, one end of the main beam body is fixedly connected with a connecting rod, a sleeve is fixedly connected between the connecting rod and the main beam body, and the other end of the main beam body is fixedly connected with a fixing sleeve.

Through adopting above-mentioned technical scheme, fixed cover is used for installing the pedal pivot of bicycle, and the sleeve is used for installing bicycle handle dwang.

Preferably, the sleeve is rotatably connected with a front fork body, and the connecting rod is fixedly connected with a rear fork body.

Through adopting above-mentioned technical scheme, the front fork body is used for installing the front wheel and the rear wheel of bicycle with the back fork body.

Preferably, the bottom ends of the front fork body and the rear fork body are respectively and fixedly connected with a connecting part for connecting wheels.

Through adopting above-mentioned technical scheme, the axis of rotation of wheel before wheel and rear wheel are conveniently connected in setting up of connecting portion.

Preferably, a stabilizing rod is fixedly connected between the rear fork body and the connecting rod.

Through adopting above-mentioned technical scheme, can improve the utility model discloses a structural strength.

Preferably, the top of the connecting rod is fixedly connected with an adjusting ring for adjusting a bicycle saddle.

Through adopting above-mentioned technical scheme, can make things convenient for the regulation of saddle height.

Preferably, the main beam body, the connecting rod, the front fork body and the rear fork body are respectively an aluminum alloy main beam body, an aluminum alloy connecting rod, an aluminum alloy front fork body and an aluminum alloy rear fork body.

Through adopting above-mentioned technical scheme, the aluminum alloy has superior structural strength and can not take place the corrosion, and lighter with the bulk mass, can reduce the whole weight of bicycle, saves the physical power of bicycle.

To sum up, the utility model discloses mainly have following beneficial effect:

the folding frame of the light bicycle is characterized in that a main beam body can be folded in one direction through the matching use of a first supporting beam, a second supporting beam, a first connecting block, a second connecting block, an embedding groove and a rotating handle, so that the folding frame of the light bicycle can achieve the purposes of folding, saving occupied space and being convenient to carry and transport;

second, this light bicycle folding chassis through the setting of rectangle piece, locating pin and spring, can carry on spacingly to the turning handle, avoids turning handle skew in the use, leads to first strutbeam and second strutbeam separation and has the potential safety hazard, reaches and effectively limits turning handle, improves the purpose of safety in utilization.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of the structure A of FIG. 1;

fig. 3 is a partial structural schematic diagram of the present invention;

fig. 4 is a schematic diagram of the rectangular block structure of the present invention.

Reference numerals: 1. a main beam body; 2. a first support beam; 3. a second corbel; 4. a first connection block; 5. a second connecting block; 6. a fixed block; 7. rotating the handle; 8. embedding a block; 9. a groove is embedded; 10. a rectangular block; 11. a rectangular groove; 12. positioning pins; 13. a spring; 14. a pull rod; 15. a connecting rod; 16. a sleeve; 17. fixing a sleeve; 18. a front fork body; 19. a rear fork body; 20. a connecting portion; 21. a stabilizing rod; 22. an adjusting ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, a folding frame of a light bicycle comprises a main beam body 1, the main beam body 1 comprises a first supporting beam 2 and a second supporting beam 3, the end portion of the first supporting beam 2 and the end portion of the second supporting beam 3 are respectively fixedly connected with a first connecting block 4 and a second connecting block 5, the first connecting block 4 is hinged to the second connecting block 5, a fixing block 6 is fixedly connected to the first connecting block 4, a rotating handle 7 is rotatably connected to the fixing block 6, an end face fixedly connected with embedded block 8 of the rotating handle 7, an embedded groove 9 for embedding the embedded block 8 is formed in the second connecting block 5, a rectangular block 10 is fixedly connected to the second supporting beam 3, a rectangular groove 11 for embedding the rotating handle 7 is formed in the rectangular block 10, a positioning pin 12 is slidably connected to the rectangular block 10, a spring 13 is sleeved outside the positioning pin 12, and a pull rod 14 is fixedly connected to the top of the positioning pin 12.

Referring to fig. 1, one end of a main beam body 1 is fixedly connected with a connecting rod 15, a sleeve 16 is fixedly connected between the connecting rod 15 and the main beam body 1, and the other end of the main beam body 1 is fixedly connected with a fixing sleeve 17; the fixing sleeve 17 is used for mounting a bicycle pedal rotating shaft, and the sleeve 16 is used for mounting a bicycle handle rotating rod.

Referring to fig. 1, a front fork 18 is rotatably connected to the sleeve 16, and a rear fork 19 is fixedly connected to the connecting rod 15; the front fork 18 and the rear fork 19 are used for mounting a front wheel and a rear wheel of the bicycle.

Referring to fig. 1, the bottom ends of the front fork 18 and the rear fork 19 are fixedly connected with a connecting part 20 for connecting wheels; the provision of the connecting portion 20 facilitates the connection of the rotational axes of the front and rear wheels.

Referring to fig. 1, a stabilizing rod 21 is fixedly connected between the rear fork 19 and the connecting rod 15; can improve the structural strength of the utility model.

Referring to fig. 1, an adjusting ring 22 for adjusting a seat cushion of a bicycle is fixedly connected to the top of the connecting rod 15; the height of the bicycle saddle can be conveniently adjusted.

Referring to fig. 1, the girder 1, the connecting rod 15, the front fork 18, and the rear fork 19 are an aluminum alloy girder, an aluminum alloy connecting rod, an aluminum alloy front fork, and an aluminum alloy rear fork, respectively; the aluminum alloy has excellent structural strength, can not be rusted, has lighter weight with the same volume, can reduce the overall weight of the bicycle, and saves the physical power of the bicycle.

The use principle and the advantages are as follows:

when the folding frame of the light bicycle needs to be folded, firstly, the pull rod 14 is pulled to drive the positioning pin 12 to move upwards, so that the positioning pin 12 is separated from the rectangular groove 11, then the rotating handle 7 is manually rotated, the embedded block 8 is separated from the embedded groove 9, the positioning between the first supporting beam 2 and the second supporting beam 3 is removed, and then the first supporting beam 2 or the second supporting beam 3 is manually folded, so that the first connecting block 4 and the second connecting block 5 rotate by taking a hinged position as a center, and when the first supporting beam 2 is attached to the second supporting beam 3, 180-degree folding can be realized;

when resetting, firstly, the first connecting block 4 and the second connecting block 5 are reset again, the first supporting beam 2 and the second supporting beam 3 are positioned on the same straight line, then the pull rod 14 is lifted and then the rotating handle 7 is rotated to the rectangular groove 11, meanwhile, the embedded block 8 is embedded into the embedded groove 9, and finally the pull rod 14 is put down, so that the positioning pin 12 limits the rotating handle 7, and the positioning pin 12 cannot shake under the action of the spring 13.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a folding frame of light bicycle, includes the girder body (1), its characterized in that: the main beam body (1) comprises a first supporting beam (2) and a second supporting beam (3), the end part of the first supporting beam (2) and the end part of the second supporting beam (3) are respectively fixedly connected with a first connecting block (4) and a second connecting block (5), the first connecting block (4) is hinged with the second connecting block (5), the first connecting block (4) is fixedly connected with a fixed block (6), the fixed block (6) is rotatably connected with a rotating handle (7), the end surface of the rotating handle (7) is fixedly connected with an embedded block (8), the second connecting block (5) is provided with an embedded groove (9) for embedding the embedded block (8), the second supporting beam (3) is fixedly connected with a rectangular block (10), the rectangular block (10) is provided with a rectangular groove (11) for embedding the rotating handle (7), and the rectangular block (10) is slidably connected with a positioning pin (12), the outside cover of locating pin (12) is equipped with spring (13), the top fixedly connected with pull rod (14) of locating pin (12).

2. A lightweight bicycle folding frame as defined in claim 1, wherein: the one end fixedly connected with connecting rod (15) of girder body (1), connecting rod (15) with fixedly connected with sleeve (16) between the girder body (1), the fixed cover (17) of other end fixedly connected with of girder body (1).

3. A lightweight bicycle folding frame as defined in claim 2, wherein: a front fork body (18) is rotationally connected in the sleeve (16), and a rear fork body (19) is fixedly connected on the connecting rod (15).

4. A lightweight bicycle folding frame as defined in claim 3, wherein: the bottom ends of the front fork body (18) and the rear fork body (19) are respectively and fixedly connected with a connecting part (20) used for connecting wheels.

5. The folding frame of light bicycle as claimed in claim 4, wherein: a stabilizing rod (21) is fixedly connected between the rear fork body (19) and the connecting rod (15).

6. The folding frame of light bicycle as claimed in claim 5, wherein: the top of the connecting rod (15) is fixedly connected with an adjusting ring (22) used for adjusting a bicycle saddle.

7. The folding frame of light bicycle as claimed in claim 6, wherein: the main beam body (1), the connecting rod (15), the front fork body (18) and the rear fork body (19) are respectively an aluminum alloy main beam body, an aluminum alloy connecting rod, an aluminum alloy front fork body and an aluminum alloy rear fork body.

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