Frame matching quick-release assembly for quick mutual conversion of bicycle and scooter or balance bike

Abstract

The utility model relates to the technical field of bicycles, in particular to a matched frame quick-release assembly for quick mutual conversion of a bicycle and a scooter or a balance scooter, which comprises a frame main body, a first conversion assembly, a second conversion assembly, a third conversion assembly and a fourth conversion assembly, and the upper end of a first spring is fixedly connected with a movable part penetrating through a fixed pipe. The first spring is stretched by pulling up the movable part, the lower end of the movable part is separated from the position of the clamping block, and meanwhile, one end of the clamping block is separated from the interior of the clamping groove by utilizing the elasticity of the second spring, so that the fixed pipe is conveniently pulled out from the interiors of the first crank and the first axle, and the first crank is conveniently disassembled; the technical problems that for a bicycle, a pedal structure adopted by the bicycle is often installed and fixed to a bicycle frame, if the bicycle is converted into the scooter or the balance bicycle, operation is troublesome, operation efficiency is reduced, and interestingness and practicability of the bicycle are not easily achieved are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to a frame quick-release assembly for rapid mutual conversion between a bicycle and a balancing vehicle or a balance vehicle. Background Art

[0002] Children's bicycles are a major category of children's vehicles, including children's bicycles, strollers, baby walkers, and children's tricycles. At first glance, a balance bike, or a children's balancing bike, looks very similar to other children's bicycles - it consists of front and rear wheels, a frame, a front fork, a seat, and a handlebar. However, there is one (or more precisely, two) very important parts missing, that is - the pedals! Since there are no pedals, children push themselves forward by pushing their feet backwards when sitting on the seat. The difference between the two types of bicycles is whether there is a pedal structure. If the free conversion between a bicycle and a balance bike or a balancing bike can be achieved, the fun and practicality of the bicycle can be enhanced.

[0003] With respect to the above-mentioned related technologies, the inventor believes that there are the following defects:

[0004] For bicycles, the pedal structure used is often fixed to the frame, which makes it difficult to convert into a balance bike or a balancing bike, which reduces the operating efficiency and is not conducive to achieving the fun and practicality of the bicycle. Therefore, it is necessary to provide a frame quick-release assembly for quickly converting a bicycle and a balance bike or a balancing bike to solve the above technical problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is that for a bicycle, the pedal structure used in it is often fixedly installed between the frame, and the operation is troublesome when it is converted into a balancing car or a balance car, which reduces the operation efficiency and is not conducive to realizing the interest and practicality of the bicycle. In view of the above-mentioned defects of the prior art, a quick-release assembly for a bicycle and a balancing car or a balance car is provided, which comprises a frame body, a first conversion assembly, a second conversion assembly, a third conversion assembly and a fourth conversion assembly, and the upper end of the first spring is fixedly connected with a movable member that penetrates a fixed tube. The utility model pulls up the movable member so that the first spring is stretched, so that the lower end of the movable member is separated from the restriction on the position of the block, and at the same time, the elastic force of the second spring is used to separate one end of the block from the inside of the card slot, so that the fixed tube is conveniently extracted from the inside of the first crank and the first axle, so that the first crank is conveniently disassembled and converted into a balancing car or a balance car, and the technical problem that the pedal structure used in the bicycle is often fixedly installed between the frame, and the operation is troublesome when it is converted into a balancing car or a balance car, which reduces the operation efficiency and is not conducive to realizing the interest and practicality of the bicycle is solved.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is: a frame quick-release assembly for quickly converting a bicycle and a balance bike or a balancing bike into each other, comprising a frame body, a first conversion assembly, a second conversion assembly, a third conversion assembly and a fourth conversion assembly, the first conversion assembly comprising a first axle and two first cranks, the front surface of each of the first cranks is provided with a first through hole, the first axle is rotatably connected to the frame body, and the outer side of the first axle is respectively provided with two bushings and two bicycle five-way brackets, both ends of the first axle are plugged into the first through holes, the outer side of the first axle is symmetrically provided with a card slot, a fixing tube is plugged into the interior of the first crank, a second spring is fixedly installed on the inner side of the fixing tube, one end of the second spring is fixedly connected to a card block penetrating the fixing tube, one end of the card block is engaged with the card slot, the first spring is fixedly installed at the bottom of the inner cavity of the fixing tube, and the upper end of the first spring is fixedly connected to a movable part penetrating the fixing tube.

[0007] It is further configured that the bottom of the movable part is in contact with the block, the block is in a T-shaped structure, a sprocket is sleeved on the outer side of the first axle, a positioning hole is opened on the front surface of the sprocket, and a positioning column plugged into the positioning hole is fixedly installed on the rear surface of the first crank located in the front.

[0008] It is further configured that the second conversion assembly includes a second axle and two second cranks, the second axle is located inside the sprocket, two bushings and two bicycle five-way brackets, a second through hole is opened on the front surface of each second crank, and the rear surface of the second crank located in the front is fixedly connected to the positioning column, and a first quick-release handle is fixedly installed on the rear surface of the second crank located in the front, the longitudinal section of the first quick-release handle is a rectangular structure, and one end of the first quick-release handle passes through the second axle and is fixedly connected to a first threaded head, a first nut is screwed on the outer side of the first threaded head, and the first nut is located inside the second through hole.

[0009] It is further configured that the third conversion assembly includes a third axle and two third cranks, the third axle is located inside the sprocket, two bushings and two bicycle five-way brackets, and is fixedly connected between the rear surface of the third crank located in the front and the positioning column, and a third through hole is opened on the front surface of each of the third cranks, and the third axle is rotatably connected to the frame body, and both ends of the third axle are fixedly connected with a second threaded head, the outer side of the second threaded head is screwed with a second nut, and the second nut is located inside the third through hole.

[0010] It is further configured that the fourth conversion assembly includes a fourth axle and two fourth cranks, the fourth axle is located inside the sprocket, two bushings and two bicycle five-way brackets, a fourth through hole is provided on the front surface of each of the fourth cranks, and the rear surface of the fourth crank located in the front is fixedly connected to the positioning column, a groove connected to the fourth through hole is provided on the front surface of the fourth crank located in the front, a second quick-release handle passing through the fourth axle is provided inside the groove, the longitudinal section of the second quick-release handle is a rectangular structure, and one end of the second quick-release handle is fixedly connected to a third threaded head, a third nut is screwed on the outer side of the third threaded head, and the third nut is located inside the fourth through hole.

[0011] It is further configured that the second quick-release handle is an L-shaped structure, and the second quick-release handle and the third threaded head are an integrally formed structure.

[0012] Compared with the related art, the utility model provides a quick-release assembly for quickly converting a bicycle and a balance bike or a balancing bike, which has the following beneficial effects:

[0013] The utility model provides a bicycle frame quick-release assembly for rapid mutual conversion between a bicycle and a balancing bike or a self-balancing bike. By pulling up a movable part, a first spring is stretched, so that the lower end of the movable part is separated from the restriction on the position of a clamping block. At the same time, the elastic force of the second spring is used to separate one end of the clamping block from the inside of a clamping slot, so that it is convenient to extract a fixing pipe from the inside of a first crank and a first axle, and it is convenient to disassemble the first crank and convert it into a balancing bike or a self-balancing bike. The utility model solves the technical problem that a pedal structure used in a bicycle is often fixedly installed between a frame, and it is troublesome to convert it into a balancing bike or a self-balancing bike, which reduces the operation efficiency and is not conducive to realizing the interest and practicality of the bicycle.

[0014] The utility model provides a bicycle frame quick-release assembly for rapid mutual conversion between a bicycle and a balance bike or a balancing bike. By unscrewing a first nut from the outer side of a first threaded head, a first quick-release handle can be taken out from the inside of a second axle, so as to facilitate disassembly of the second crank and facilitate conversion of the bicycle into a balance bike or a balancing bike.

[0015] The utility model provides a bicycle frame quick-release assembly for rapid mutual conversion between a bicycle and a balance bike or a self-balancing bike. By unscrewing a second nut from the outer side of a second threaded head, a third crank can be removed from the outer side of the second threaded head, thereby achieving an effect of facilitating the removal of the third crank and facilitating conversion of a bicycle into a balance bike or a self-balancing bike.

[0016] The utility model provides a frame quick-release assembly for rapid mutual conversion between a bicycle and a balance bike or a balancing bike. By unscrewing a third nut from the outer side of a third threaded head, the second quick-release handle can be taken out from the inside of a fourth axle, a fourth through hole and a groove, so as to facilitate disassembly of the fourth crank and facilitate conversion of the bicycle into a balance bike or a balancing bike. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a preferred embodiment of a quick-release assembly for a bicycle and a balance bike or a scooter for rapid conversion between the bicycle and the balance bike provided by the utility model;

[0018] Figure 2 This is a left-side structural schematic diagram of the first conversion component of the utility model;

[0019] Figure 3 It is a partial enlarged view of the A part of the utility model;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the second conversion assembly of the utility model connected to the frame body;

[0021] Figure 5 It is a left-side structural schematic diagram of the second conversion component of the utility model;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the third conversion assembly of the utility model connected to the frame body;

[0023] Figure 7 It is a left-side structural schematic diagram of the third conversion assembly of the utility model;

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the fourth conversion assembly of the utility model connected to the frame body;

[0025] Fig. 9 It is a left view structural schematic diagram of the fourth conversion component of the utility model.

[0026] Numbers in the figure: 1, frame body; 2, sprocket; 3, first conversion assembly; 4, first crank; 5, first through hole; 6, first axle; 7, bushing; 8, bicycle bottom bracket; 9, fixing tube; 10, positioning hole; 11, positioning column; 12, movable part; 13, first spring; 14, slot; 15, second spring; 16, block; 17, second conversion assembly; 18, first threaded head; 19, second crank; 20, first nut; 21, second through hole; 22, second axle; 23, first quick-release handle; 24, third conversion assembly; 25, third axle; 26, third crank; 27, second nut; 28, third through hole; 29, second threaded head; 30, fourth conversion assembly; 31, second quick-release handle; 32, third nut; 33, fourth through hole; 34, fourth axle; 35, groove; 36, third threaded head; 37, fourth crank. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the accompanying drawings, in which typical embodiments of the present invention are shown.

[0028] Embodiment 1:

[0029] like Figure 1-3 As shown, a frame quick-release assembly for rapid mutual conversion between a bicycle and a balance bike or a balancing bike of the utility model comprises a frame body 1, a first conversion assembly 3, a second conversion assembly 17, a third conversion assembly 24 and a fourth conversion assembly 30, the first conversion assembly 3 comprises a first axle 6 and two first cranks 4, a first through hole 5 is provided on the front surface of each first crank 4, the first axle 6 is rotatably connected to the frame body 1, and two shaft sleeves 7 and two bicycle five-way brackets 8 are respectively provided on the outer side of the first axle 6, both ends of the first axle 6 are plugged into the first through holes 5, a card slot 14 is symmetrically provided on the outer side of the first axle 6, a fixing tube 9 is plugged into the interior of the first crank 4, a second spring 15 is fixedly installed on the inner side of the fixing tube 9, one end of the second spring 15 is fixedly connected to a card block 16 penetrating the fixing tube 9, one end of the card block 16 is engaged with the card slot 14, a first spring 13 is fixedly installed at the bottom of the inner cavity of the fixing tube 9, and an upper end of the first spring 13 is fixedly connected to a movable part 12 penetrating the fixing tube 9.

[0030] like Figure 2-3 As shown, the bottom of the movable part 12 is in contact with the block 16, and the block 16 is in a T-shaped structure. The sprocket 2 is sleeved on the outer side of the first axle 6, and a positioning hole 10 is opened on the front surface of the sprocket 2. A positioning column 11 that is plugged into the positioning hole 10 is fixedly installed on the rear surface of the first crank 4 in the front.

[0031] During implementation, by pulling up the movable part 12, the first spring 13 is stretched, so that the lower end of the movable part 12 is freed from the restriction on the position of the block 16, and at the same time, the elastic force of the second spring 15 is used to realize that one end of the block 16 is freed from the interior of the slot 14, thereby facilitating the removal of the fixed tube 9 from the interior of the first crank 4 and the first axle 6, and facilitating the disassembly of the first crank 4 and conversion into a balance bike or a balancing bike, thereby solving the technical problem that the pedal structure used in a bicycle is often fixed to the frame, which makes it troublesome to convert it into a balance bike or a balancing bike, reduces the operating efficiency, and is not conducive to achieving the fun and practicality of the bicycle.

[0032] Embodiment 2:

[0033] like Figure 4-5 As shown, on the basis of the first embodiment, the utility model provides a technical solution: the second conversion assembly 17 includes a second axle 22 and two second cranks 19, the second axle 22 is located inside the sprocket 2, the two bushings 7 and the two bicycle bottom brackets 8, the front surface of each second crank 19 is provided with a second through hole 21, and the rear surface of the second crank 19 located in the front is fixedly connected to the positioning column 11, and the rear surface of the second crank 19 located in the front is fixedly installed with a first quick-release handle 23, the longitudinal section of the first quick-release handle 23 is a rectangular structure, and one end of the first quick-release handle 23 passes through the second axle 22 and is fixedly connected to the first threaded head 18, the outer side of the first threaded head 18 is screwed with a first nut 20, and the first nut 20 is located inside the second through hole 21.

[0034] In practice, by unscrewing the first nut 20 from the outside of the first threaded head 18, the first quick-release handle 23 is removed from the inside of the second axle 22, so as to facilitate the disassembly of the second crank 19 and convert the bicycle into a balance bike or a balancing bike.

[0035] Embodiment three:

[0036] like Figure 6-7 As shown, on the basis of the first embodiment, the utility model provides a technical solution: the third conversion assembly 24 includes a third axle 25 and two third cranks 26, the third axle 25 is located inside the sprocket 2, the two bushings 7 and the two bicycle bottom brackets 8, and is fixedly connected between the rear surface of the third crank 26 in the front and the positioning column 11, and a third through hole 28 is opened on the front surface of each third crank 26, and the third axle 25 is rotatably connected to the frame body 1, and the two ends of the third axle 25 are fixedly connected with a second threaded head 29, and the outer side of the second threaded head 29 is screwed with a second nut 27, and the second nut 27 is located inside the third through hole 28.

[0037] During implementation, the third crank 26 is removed from the outside of the second threaded head 29 by unscrewing the second nut 27 from the outside of the second threaded head 29, thereby facilitating the disassembly of the third crank 26 and converting the bicycle into a balance bike or a balancing bike.

[0038] Embodiment 4:

[0039] like Figure 8-9 As shown, on the basis of the first embodiment, the utility model provides a technical solution: the fourth conversion assembly 30 includes a fourth axle 34 and two fourth cranks 37, the fourth axle 34 is located inside the sprocket 2, the two bushings 7 and the two bicycle bottom brackets 8, the front surface of each fourth crank 37 is provided with a fourth through hole 33, and the rear surface of the fourth crank 37 located in the front is fixedly connected with the positioning column 11, the front surface of the fourth crank 37 located in the front is provided with a groove 35 connected with the fourth through hole 33, and the inside of the groove 35 is provided with a second quick-release handle 31 that passes through the fourth axle 34, the longitudinal section of the second quick-release handle 31 is a rectangular structure, and one end of the second quick-release handle 31 is fixedly connected with a third threaded head 36, the outer side of the third threaded head 36 is screwed with a third nut 32, and the third nut 32 is located inside the fourth through hole 33.

[0040] like Fig. 9 As shown, the second quick-release handle 31 is in an L-shaped structure, and the second quick-release handle 31 and the third threaded head 36 are an integrally formed structure, so that the second quick-release handle 31 and the third threaded head 36 are firmly connected.

[0041] During implementation, by unscrewing the third nut 32 from the outside of the third threaded head 36, the second quick-release handle 31 is removed from the inside of the fourth axle 34, the fourth through hole 33 and the groove 35, so as to facilitate the disassembly of the fourth crank 37 and facilitate the conversion of the bicycle into a balance bike or a balancing bike.

[0042] It should be particularly noted that the first crank 4, the second crank 19, the third crank 26 and the fourth crank 37 are all used to install the pedal structure.

[0043] This technical solution adopts four solutions to achieve the conversion between bicycles and balance bikes or balancing bikes. The operation steps are:

[0044] The first method: first pull the upward movable member 12 to stretch the first spring 13, so that the lower end of the movable member 12 is free from the restriction on the position of the clamping block 16. At this time, under the elastic force of the second spring 15, one end of the clamping block 16 is free from the inside of the clamping groove 14, and then the fixing tube 9 is pulled out from the inside of the first crank 4 and the first axle 6, and finally the first crank 4 is removed from both ends of the first axle 6;

[0045] The second method: firstly, unscrew the first nut 20 from the outer side of the first threaded head 18, and then take out the first quick release handle 23 from the inside of the second axle 22, so as to separate the second crank 19 from the second axle 22;

[0046] The third method: firstly, unscrew the second nut 27 from the outer side of the second thread head 29, and then move the third crank 26 to disengage from the third through hole 28 opened by the third crank 26;

[0047] Fourth method: first unscrew the third nut 32 from the outer side of the third threaded head 36 , and then remove the second quick-release handle 31 from the fourth axle 34 , the fourth through hole 33 and the inside of the groove 35 , and at the same time separate the fourth crank 37 from the fourth axle 34 .

[0048] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-release assembly for a bicycle and a balance bike or a balancing bike for rapid conversion between each other, comprising a frame body (1), a first conversion assembly (3), a second conversion assembly (17), a third conversion assembly (24) and a fourth conversion assembly (30), characterized in that: The first conversion assembly (3) comprises a first axle (6) and two first cranks (4), the front surface of each of the first cranks (4) being provided with a first through hole (5), the first axle (6) being rotatably connected to the frame body (1), and two shaft sleeves (7) and two bicycle bottom brackets (8) being respectively arranged on the outer side of the first axle (6), both ends of the first axle (6) being plugged into the first through hole (5), and the outer side of the first axle (6) being symmetrically provided with a card slot (14 ), a fixed tube (9) is inserted into the interior of the first crank (4), a second spring (15) is fixedly installed on the inner side of the fixed tube (9), one end of the second spring (15) is fixedly connected to a clamping block (16) passing through the fixed tube (9), one end of the clamping block (16) is engaged with a clamping groove (14), a first spring (13) is fixedly installed at the bottom of the inner cavity of the fixed tube (9), and the upper end of the first spring (13) is fixedly connected to a movable part (12) passing through the fixed tube (9).

2. A quick-release assembly for converting a bicycle and a balance bike or a balancing bike into each other according to claim 1, characterized in that: The bottom of the movable part (12) is in contact with a clamping block (16), and the clamping block (16) is in a T-shaped structure. A sprocket (2) is sleeved on the outer side of the first axle (6), and a positioning hole (10) is provided on the front surface of the sprocket (2). A positioning column (11) plugged into the positioning hole (10) is fixedly installed on the rear surface of the first crank (4) located in the front.

3. A quick-release assembly for converting a bicycle and a balance bike or a scooter into each other according to claim 2, characterized in that: The second conversion assembly (17) comprises a second axle (22) and two second cranks (19); the second axle (22) is located inside the sprocket (2), two bushings (7) and two bicycle bottom brackets (8); a second through hole (21) is provided on the front surface of each second crank (19); and the rear surface of the second crank (19) located in the front is fixedly connected to the positioning column (11); a first quick-release handle (23) is fixedly installed on the rear surface of the second crank (19) located in the front; the longitudinal section of the first quick-release handle (23) is a rectangular structure; one end of the first quick-release handle (23) passes through the second axle (22) and is fixedly connected to a first threaded head (18); a first nut (20) is threadedly connected to the outer side of the first threaded head (18); and the first nut (20) is located inside the second through hole (21).

4. A quick-release assembly for converting a bicycle and a balance bike or a balancing bike into each other according to claim 2, characterized in that: The third conversion assembly (24) comprises a third axle (25) and two third cranks (26); the third axle (25) is located inside the sprocket (2), two shaft sleeves (7) and two bicycle bottom brackets (8); the rear surface of the third crank (26) located in the front is fixedly connected to the positioning column (11); the front surface of each third crank (26) is provided with a third through hole (28); the third axle (25) is rotatably connected to the frame body (1); both ends of the third axle (25) are fixedly connected with a second threaded head (29); the outer side of the second threaded head (29) is threaded with a second nut (27); the second nut (27) is located inside the third through hole (28).

5. A quick-release assembly for converting a bicycle and a balance bike or a balancing bike into each other according to claim 2, characterized in that: The fourth conversion assembly (30) comprises a fourth axle (34) and two fourth cranks (37). The fourth axle (34) is located inside the sprocket (2), two shaft sleeves (7) and two bicycle bottom brackets (8). A fourth through hole (33) is provided on the front surface of each of the fourth cranks (37). The rear surface of the fourth crank (37) located in the front is fixedly connected to the positioning column (11). A groove (35) communicating with the fourth through hole (33) is provided on the front surface of the fourth crank (37) located in the front. A second quick-release handle (31) passing through the fourth axle (34) is provided inside the groove (35). The longitudinal section of the second quick-release handle (31) is a rectangular structure. One end of the second quick-release handle (31) is fixedly connected to a third threaded head (36). A third nut (32) is screwed to the outer side of the third threaded head (36). The third nut (32) is located inside the fourth through hole (33).

6. A quick-release assembly for converting a bicycle and a balance bike or a balancing bike into each other according to claim 5, characterized in that: The second quick-release handle (31) is in an L-shaped structure, and the second quick-release handle (31) and the third threaded head (36) are an integrally formed structure.

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