CN214296314U

CN214296314U - Crank gear disc assembly and driving mechanism applied to same

Info

Publication number: CN214296314U
Application number: CN202120090048.1U
Authority: CN
Inventors: 陈柏诚
Original assignee: Chuancheng Technical Research Co ltd
Current assignee: Chuancheng Technical Research Co ltd; Drivetrain Tech Solution Inc
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-09-28
Anticipated expiration: 2031-01-13

Abstract

The utility model provides a crank gear disc component and a driving mechanism applied to the component, the crank gear disc component is used for meshing a belt and assembling a pedal, and comprises a wheel disc part, a crank part and a shaft connecting part; the wheel disc part, the crank part and the coupling part are of an integrally formed structure, the wheel disc part is provided with a first side surface and a second side surface, the first side surface is opposite to the second side surface, and a plurality of belt tooth grooves are formed on the outer periphery of the wheel disc part and meshed with the belt; the crank part is formed on one side of the wheel disc part, one end of the crank part is connected to the first side surface of the wheel disc part, the other end of the crank part extends in the radial direction of the wheel disc part, and the crank part is provided with a pedal hole for assembling the pedal; the coupling portion is formed on the second side surface of the wheel disc portion.

Description

Crank gear disc assembly and driving mechanism applied to same

Technical Field

The utility model relates to a technical field of bicycle transmission structure is related to, especially indicates a cooperation belt driven crank fluted disc subassembly.

Background

The transmission modes of the bicycle are generally divided into two modes of chain transmission and belt pulley transmission, and the traditional mode of combining a chain and a chain wheel is adopted, so that the chain is easy to fall off, and the defect that the chain must be oiled frequently is overcome; the belt pulley transmission has the advantages of difficult chain dropping, no need of frequent oiling, high speed, no slipping, high efficiency and the like; however, the conventional fluted disc structure driven by a belt pulley comprises a fluted disc and a crank, wherein one end of the crank is used for assembling a pedal, the other end of the crank is pivoted with a five-claw connecting piece, and the fluted disc is assembled by matching the five-claw connecting piece with a plurality of locking elements.

SUMMERY OF THE UTILITY MODEL

The utility model provides a crank fluted disc subassembly, its aim at provide a crank and fluted disc structure as an organic whole, have the structural strength and the transmission effect of preferred.

To achieve the above objects, the present invention provides a crank gear assembly for engaging a belt and assembling a pedal, comprising a wheel disc portion, a crank portion and a coupling portion; the wheel disc part, the crank part and the coupling part are of an integrally formed structure, the wheel disc part is provided with a first side surface and a second side surface, the first side surface is opposite to the second side surface, and a plurality of belt tooth grooves are formed on the outer periphery of the wheel disc part and meshed with the belt; the crank part is formed on one side of the wheel disc part, one end of the crank part is connected to the first side surface of the wheel disc part, the other end of the crank part extends in the radial direction of the wheel disc part, and the crank part is provided with a pedal hole for assembling the pedal; the coupling portion is formed on the second side surface of the wheel disc portion.

In one embodiment, the plurality of belt tooth grooves include a plurality of first protrusions, a plurality of second protrusions, and a plurality of recesses, and the plurality of first protrusions and the plurality of second protrusions are disposed at two sides of two adjacent recesses at intervals.

In one embodiment, the reinforcing plate has a through hole, and the reinforcing plate is contained inside the combination of the wheel disc portion and the crank portion, and the through hole corresponds to the pedal hole of the crank portion.

In one embodiment, the reinforcing plate is provided with a hollow portion, so that the reinforcing plate is contained in the combination body of the wheel disc portion and the crank portion and can be better combined with the wheel disc portion and the crank portion.

The utility model also provides an actuating mechanism contains: a crank gear assembly for engaging a belt and assembling a pedal, comprising a wheel disc portion, a crank portion and a coupling portion; the wheel disc part, the crank part and the coupling part are of an integrally formed structure, the wheel disc part is provided with a first side surface and a second side surface, the first side surface is opposite to the second side surface, a central hole is arranged in the center of the wheel disc part and penetrates through the first side surface and the second side surface, and a plurality of belt tooth grooves are formed in the outer periphery of the wheel disc part and are meshed with the belt; the crank part is formed on one side of the wheel disc part, one end of the crank part is connected to the first side surface of the wheel disc part, the other end of the crank part extends in the radial direction of the wheel disc part, and the crank part is provided with a pedal hole for assembling the pedal; the coupling part is formed on one side of the wheel disc part and is provided with a first end and a second end, the first end is connected with the central hole of the wheel disc part, the second end extends in the axial direction of the central hole and extends out of the second side surface, the end surface of the second end is provided with a plurality of ratchets, and a mounting hole penetrates through the first end and the second end and is communicated with the central hole of the wheel disc part; the auxiliary crank component comprises an auxiliary crank part and an auxiliary coupling shaft part, and the auxiliary crank part and the auxiliary coupling shaft part are of an integrally formed structure; one end of the auxiliary crank part is provided with an auxiliary pedal hole for connecting with another pedal, and the other end of the auxiliary crank part is provided with a central hole; the auxiliary shaft part is formed at one side of the auxiliary crank part and is provided with a first end and a second end, the first end is connected with the central hole of the auxiliary crank part, the second end extends towards the axial direction of the central hole, the end surface of the second end is provided with a plurality of ratchets for meshing with the ratchets of the shaft part, and an auxiliary mounting hole penetrates through the first end and the second end and is communicated with the central hole of the auxiliary crank part; and the pivot penetrating assembly penetrates through the center hole of the wheel disc part of the crank gear disc assembly, the mounting hole of the connecting shaft part, the center hole of the auxiliary connecting shaft part of the auxiliary crank assembly and the auxiliary mounting hole of the auxiliary connecting shaft part and is used for assembling the crank gear disc assembly and the auxiliary crank assembly.

In one embodiment, the secondary crank assembly further includes an adjusting member having a first end and a second end, the first end is opposite to the second end, a plurality of ratchet teeth are respectively disposed on end surfaces of the first end and the second end, the plurality of ratchet teeth can be respectively engaged with the plurality of ratchet teeth of the coupling portion and the plurality of ratchet teeth of the secondary coupling portion, the adjusting member has a coupling hole at a center thereof, the coupling hole penetrates through the first end and the second end for the pivot assembly to pivot.

In an embodiment, the pivot penetrating component is a combination of a shaft rod and a sleeve, the shaft rod is provided with a section of external thread, the inside of the tube center of the sleeve is provided with an internal thread, the shaft rod and the sleeve respectively penetrate through the crank gear disc component and the auxiliary crank component, and the shaft rod can be screwed with the sleeve to be locked with the crank gear disc component and the auxiliary crank component.

In one embodiment, the crank gear assembly further comprises a reinforcing plate having an axial hole and a through hole, the reinforcing plate being contained inside the combination of the wheel disc portion and the crank portion, the axial hole corresponding to the central hole of the wheel disc portion, the through hole corresponding to the pedal hole of the crank portion; the auxiliary crank assembly further comprises an auxiliary reinforcing plate, the auxiliary reinforcing plate is provided with an auxiliary shaft hole and an auxiliary through hole, the auxiliary shaft hole corresponds to the central hole of the auxiliary crank portion, the auxiliary through hole corresponds to the auxiliary pedal hole of the auxiliary crank portion, and the auxiliary reinforcing plate is contained in the auxiliary crank portion.

In one embodiment, the reinforcing plate and the auxiliary reinforcing plate are both provided with a hollow portion, so that the reinforcing plate is contained in the combination body of the wheel disc portion and the crank portion and can be better combined with the wheel disc portion and the crank portion, and the auxiliary reinforcing plate is contained in the auxiliary crank portion and can be better combined with the auxiliary crank portion.

The beneficial effects of the utility model reside in that:

the utility model provides a crank fluted disc subassembly and be applied to actuating mechanism of this subassembly because this wheel dish portion, this shaft coupling portion and this crank portion are integrated into one piece's structure to and be provided with this reinforcement piece between this wheel dish portion, this crank portion, make the utility model discloses crank fluted disc subassembly has good structural strength. And, this pair crank portion of this pair crank subassembly, this pair allies oneself with the axial region and also for integrated into one piece and has the structure of this pair reinforcement piece in addition, this pair crank subassembly also has good structural strength, and constitute with this crank gear dish subassembly, this pair crank subassembly the utility model discloses actuating mechanism, this complex belt tooth's socket of this wheel dish portion meshes with this belt mutually, this crank portion and this pair crank portion do not montage this footboard, when the user steps on this footboard application of force with the foot, can convert the power into the power that makes the bicycle go forward completely and in time with strength, the utility model discloses actuating mechanism provides preferred transmission effect, thoroughly gets rid of the current structure through assembling five claw connection pieces with the crank, five claw connection pieces and borrowing the concatenation fluted disc of plural number component again, causes its transmission unstable, the defect that the transmission can't be timely.

Drawings

Fig. 1 is a schematic perspective view of a crank gear disc assembly according to the present invention.

Fig. 2 is a schematic perspective view of a reinforcing plate of the crank gear disc assembly of the present invention.

Fig. 3 is a schematic sectional view of the crank-toothed disc assembly of the present invention.

Fig. 4 is a schematic perspective view of the driving mechanism according to the present invention.

Fig. 5 is an exploded perspective view of the driving mechanism of the present invention.

Fig. 6 is a schematic sectional view of the driving mechanism of the present invention.

Fig. 7 is a schematic view of a driving mechanism and a usage state thereof.

Reference numerals

10: a wheel disc portion; 11: a first side surface; 12: a second side surface; 13: a central bore; 14: a belt tooth groove; 141: a first convex portion; 142: a second convex portion; 143: a recess; 20: a crank portion; 21: a pedal hole; 30: a coupling portion; 31: a first end; 32: a second end; 33: mounting holes; 34: a ratchet; 40: a reinforcing sheet; 41: a shaft hole; 42: a through hole; 43: a flange; 44: a hollow portion; 50: an auxiliary crank portion; 51: a secondary pedal hole; 52: a central bore; 60: a sub-coupling shaft portion; 61: a first end; 62: a second end; 63: a secondary mounting hole; 64: a ratchet; 70: a secondary reinforcing sheet; 71: an auxiliary shaft hole; 72: a secondary through hole; 73: a flange; 74: a hollow portion; 80: an adjustment member; 81: a first end; 82: a second end; 83. 84: a ratchet; 85: a coupling hole; 90: a pivot penetrating component; 91: a shaft lever; 92: an external thread; 93: a sleeve; 94: an internal thread; 200: a belt; 300: a pedal.

Detailed Description

The following description will be made in detail with reference to the accompanying drawings, which illustrate preferred embodiments of the present invention according to the purpose and effects thereof.

Referring to fig. 1, the present invention relates to a crank gear assembly for engaging a belt 200 and assembling a pedal 300 (see fig. 7), which comprises a combination of a wheel disc portion 10, a crank portion 20 and a coupling portion 30. The wheel disc part 10 has a first side surface 11 and a second side surface 12, the first side surface 11 is opposite to the second side surface 12, a central hole 13 is arranged at the center of the wheel disc part 10, the central hole 13 penetrates through the first side surface 11 and the second side surface 12, and a plurality of belt tooth grooves 14 are formed on the outer periphery of the wheel disc part 10 to be meshed with the belt 200; in the embodiment of the present disclosure, the plurality of belt tooth slots 14 include a plurality of first protrusions 141, a plurality of second protrusions 142 and a plurality of recesses 143, the plurality of first protrusions 141 and the plurality of second protrusions 142 are disposed at two sides of two adjacent recesses 143 at intervals to provide an auxiliary limit for the belt 200, so as to prevent the belt 200 from separating from the wheel disc portion 10; the crank portion 20 is formed at one side of the wheel disk portion 10, one end of the crank portion is connected to the first side surface 11 of the wheel disk portion 10, the other end of the crank portion extends in the radial direction of the wheel disk portion 10, and the crank portion 20 is provided with a pedal hole 21 for assembling the pedal 300; the coupling portion 30 is formed on the disk portion 10 side.

Referring to fig. 2, the wheel disc portion 10, the coupling portion 30 and the crank portion 20 of the crank gear disc assembly of the present invention are integrally formed, and can be made of non-metal materials such as resin, carbon fiber reinforced plastic, etc. to reduce the weight of the bicycle, and further includes a reinforcing sheet 40, wherein the reinforcing sheet 40 has a shaft hole 41 and a through hole 42, the reinforcing sheet 40 is contained between the wheel disc portion 10 and the crank portion 20 (see fig. 3), the shaft hole 41 corresponds to the central hole 13 of the wheel disc portion 10, and the through hole 42 corresponds to the pedal hole 21 of the crank portion 20. The reinforcing piece 40 can increase the structural strength of the wheel disk portion 10 and the crank portion 20; the reinforcing plate 40 further comprises a blocking edge 43, the blocking edge 43 is formed on the outer periphery of the shaft hole 41, the blocking edge 43 provides structural reinforcement for the central hole 13, so that the structure of the central hole 13 is firmer, and a pivot (or lock) element can pass through the blocking edge to connect other members; in addition, the reinforcing sheet 40 is provided with a hollow portion 44, so that the reinforcing sheet 40 is contained in the combined body of the wheel disk portion 10 and the crank portion 20, and can be better combined with the wheel disk portion 10 and the crank portion 20.

Referring to fig. 4 and 5, a driving mechanism is combined with a pair of crank assemblies and a pivot assembly 90 through the crank and gear assembly of the present invention.

The coupling portion 30 of the crank gear disc assembly has a first end 31 and a second end 32, the first end 31 is connected to the central hole 13 of the wheel disc portion 10, the second end 32 extends in the axial direction of the central hole 13 and extends out of the second side surface 12, a mounting hole 33 penetrates through the first end 31 and the second end 32 and is communicated with the central hole 13 of the wheel disc portion 10, and a plurality of ratchet teeth 34 are disposed on an end surface of the second end 32.

The auxiliary crank assembly comprises an auxiliary crank portion 50, an auxiliary coupling portion 60 and an auxiliary reinforcing plate 70, wherein one end of the auxiliary crank portion 50 is provided with an auxiliary pedal hole 51 for assembling another pedal 300, and the other end of the auxiliary crank portion 50 is provided with a central hole 52; the auxiliary shaft portion 60 is formed at one side of the auxiliary crank portion 50, and has a first end 61 and a second end 62, the first end 61 is connected to the central hole 52 of the auxiliary crank portion 50, the second end 62 extends axially toward the central hole 52, the auxiliary shaft portion 60 has an auxiliary mounting hole 63, the auxiliary mounting hole 63 penetrates through the first end 61 and the second end 62 and communicates with the central hole 52 of the auxiliary crank portion 50, a plurality of ratchet teeth 64 are disposed at an end surface of the second end 62 for engaging and assembling with the plurality of ratchet teeth 34 of the shaft portion 30; the auxiliary crank portion 50 and the auxiliary shaft portion 60 are integrally formed, and can be made of non-metallic materials such as resin, carbon fiber reinforced plastics and the like under the aim of lightening the bicycle; the auxiliary reinforcement piece 70 has an auxiliary shaft hole 71 and an auxiliary through hole 72, a stop edge 73 is further disposed on the outer periphery of the auxiliary shaft hole 71, the auxiliary shaft hole 71 and the auxiliary through hole 72 respectively correspond to the central hole 52 of the auxiliary crank portion 50 and the auxiliary pedal hole 51, the auxiliary reinforcement piece 70 is included in the auxiliary crank portion 50, and the auxiliary reinforcement piece 70 can increase the structural strength of the whole auxiliary crank portion 50 and the central hole 13; in addition, the auxiliary reinforcing sheet 70 is provided with a hollow portion 74, so that the auxiliary reinforcing sheet 70 is contained in the auxiliary crank portion 50 and can be better combined with the auxiliary crank portion 50. The structure of the auxiliary reinforcing sheet 70 is the same as that of the reinforcing sheet 40, and is not shown in the drawings.

Referring to fig. 6 and 7, an adjusting member 80 is further disposed between the shaft portion 30 and the sub-shaft portion 60, the adjusting member 80 has a first end 81 and a second end 82, the first end 81 is opposite to the second end 82, a plurality of

ratchet teeth

83, 84 are respectively disposed on end surfaces of the first end 81 and the second end 82, and are respectively engaged with the plurality of ratchet teeth 34 of the shaft portion 30 and the plurality of ratchet teeth 64 of the sub-shaft portion 60, a coupling hole 85 is centrally disposed in the adjusting member 80, the coupling hole 85 penetrates through the first end 31 and the second end 32, and the coupling hole 85 is used for the pivot assembly 90 to pivot. The length of the coupling portion 30 of the crank gear assembly and the length of the sub-coupling portion 60 of the sub-crank assembly can be changed by the adjusting member 80 so as to adapt to the five-way tubes of different specifications of the bicycle frame.

The pivot penetrating assembly 90 is a combination of a shaft rod 91 and a sleeve 93, the shaft rod 91 is provided with a section of external thread 92, the inside of the tube core of the sleeve 93 is provided with an internal thread 94, the shaft rod 91 is inserted through the central hole 13 of the wheel disk portion 10 of the crank gear assembly, the mounting hole 33 of the coupling portion 30, the combining hole 85 of the adjusting member 80 and the auxiliary mounting hole 63 of the auxiliary coupling portion 60 of the auxiliary crank assembly, the sleeve 93 is pivoted through the central hole 52 of the auxiliary crank portion 50 of the auxiliary crank assembly and the auxiliary mounting hole 63 of the auxiliary coupling portion 60, and the external thread 92 of the shaft rod 91 is screwed with the internal thread 94 of the sleeve 93 so as to lock the crank gear assembly and the auxiliary crank assembly.

By the above the utility model discloses crank gear dish subassembly is owing to this rim plate portion 10, this shaft coupling portion 30 and this crank portion 20 structure as integrated into one piece to and be provided with this reinforcement piece 40 between this rim plate portion 10, this crank portion 20, make the utility model discloses crank gear dish subassembly has good structural strength. And, this pair of crank portion 50 of this pair of crank assembly, this pair of axle stub portion 60 are the structure of integrated into one piece and have this pair of reinforcement piece 70 in addition, this pair of crank assembly also has good structural strength, and constitute with this crank gear dish subassembly, this pair of crank assembly the utility model discloses actuating mechanism, this plural belt tooth's socket 14 of this rim plate portion 10 meshes with this belt 200 mutually, this crank portion 20 and this pair of crank portion 50 do not montage this footboard 300, when the user tramples this footboard 300 application of force with the foot, can convert the power into the power that makes the bicycle go forward completely and in time, the utility model discloses actuating mechanism provides the preferred transmission effect, thoroughly gets rid of the current structure through assembling five claw connecting pieces, five claw connecting pieces and then assembling fluted disc by plural number lock solid component with the crank, causes its transmission unstable, the defect that the transmission can's in time.

The above embodiments are merely illustrative of the techniques and their efficacy of the present invention, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the technical principles and spirit of the present invention, and the scope of the present invention is therefore intended to be covered by the following claims.

Claims

1. A crank gear disc component is used for meshing a belt and assembling a pedal and comprises a wheel disc part, a crank part and a coupling part; it is characterized in that the preparation method is characterized in that,

the wheel disc part, the crank part and the coupling part are of an integrally formed structure, the wheel disc part is provided with a first side surface and a second side surface, the first side surface is opposite to the second side surface, and a plurality of belt tooth grooves are formed on the outer periphery of the wheel disc part and meshed with the belt; the crank part is formed on one side of the wheel disc part, one end of the crank part is connected to the first side surface of the wheel disc part, the other end of the crank part extends in the radial direction of the wheel disc part, and the crank part is provided with a pedal hole for assembling the pedal; the coupling portion is formed on the second side surface of the wheel disc portion.

2. The crank gear assembly as claimed in claim 1, wherein the plurality of belt tooth grooves comprise a plurality of first protrusions, a plurality of second protrusions and a plurality of recesses, the plurality of first protrusions and the plurality of second protrusions are spaced apart from each other and disposed on two sides of two adjacent recesses.

3. The crank and gear assembly according to claim 1 further comprising a reinforcing plate having a through hole, the reinforcing plate being contained within the combination of the wheel portion and the crank portion, the through hole corresponding to the pedal hole of the crank portion.

4. The crank disk assembly of claim 3, wherein the reinforcing plate has a hollow portion, so that the reinforcing plate is contained in the combination of the disk portion and the crank portion to be combined with the disk portion and the crank portion.

5. A drive mechanism, comprising:

a crank gear assembly for engaging a belt and assembling a pedal, comprising a wheel disc portion, a crank portion and a coupling portion; the wheel disc part, the crank part and the coupling part are of an integrally formed structure, the wheel disc part is provided with a first side surface and a second side surface, the first side surface is opposite to the second side surface, a central hole is arranged in the center of the wheel disc part and penetrates through the first side surface and the second side surface, and a plurality of belt tooth grooves are formed in the outer periphery of the wheel disc part and are meshed with the belt; the crank part is formed on one side of the wheel disc part, one end of the crank part is connected to the first side surface of the wheel disc part, the other end of the crank part extends in the radial direction of the wheel disc part, and the crank part is provided with a pedal hole for assembling the pedal; the coupling part is formed on one side of the wheel disc part and is provided with a first end and a second end, the first end is connected with the central hole of the wheel disc part, the second end extends in the axial direction of the central hole and extends out of the second side surface, the end surface of the second end is provided with a plurality of ratchets, and a mounting hole penetrates through the first end and the second end and is communicated with the central hole of the wheel disc part;

the auxiliary crank component comprises an auxiliary crank part and an auxiliary coupling shaft part, and the auxiliary crank part and the auxiliary coupling shaft part are of an integrally formed structure; one end of the auxiliary crank part is provided with an auxiliary pedal hole for connecting with another pedal, and the other end of the auxiliary crank part is provided with a central hole; the auxiliary shaft part is formed at one side of the auxiliary crank part and is provided with a first end and a second end, the first end is connected with the central hole of the auxiliary crank part, the second end extends towards the axial direction of the central hole, the end surface of the second end is provided with a plurality of ratchets for meshing with the ratchets of the shaft part, and an auxiliary mounting hole penetrates through the first end and the second end and is communicated with the central hole of the auxiliary crank part;

and the pivot penetrating assembly penetrates through the center hole of the wheel disc part of the crank gear disc assembly, the mounting hole of the connecting shaft part, the center hole of the auxiliary connecting shaft part of the auxiliary crank assembly and the auxiliary mounting hole of the auxiliary connecting shaft part and is used for assembling the crank gear disc assembly and the auxiliary crank assembly.

6. The driving mechanism as claimed in claim 5, wherein the secondary crank assembly further comprises an adjustment member having a first end and a second end, the first end being opposite to the second end, a plurality of ratchet teeth being respectively disposed on end surfaces of the first end and the second end for engaging with the plurality of ratchet teeth of the coupling portion and the plurality of ratchet teeth of the secondary coupling portion, respectively, the adjustment member having a coupling hole at a center thereof, the coupling hole passing through the first end and the second end for the pivot assembly to pivot.

7. The driving mechanism as claimed in claim 5, wherein the pivot assembly is a combination of a shaft and a sleeve, the shaft has an external thread, the inner tube of the sleeve has an internal thread, the shaft and the sleeve respectively pass through the crank gear assembly and the secondary crank assembly, and the shaft and the sleeve can be screwed together to lock the crank gear assembly and the secondary crank assembly.

8. The driving mechanism as claimed in claim 5, wherein the crank gear assembly further comprises a reinforcing plate having an axial hole and a through hole, the reinforcing plate being contained inside the combination of the wheel portion and the crank portion, the axial hole corresponding to the central hole of the wheel portion, the through hole corresponding to the pedal hole of the crank portion; the auxiliary crank assembly further comprises an auxiliary reinforcing plate, the auxiliary reinforcing plate is provided with an auxiliary shaft hole and an auxiliary through hole, the auxiliary shaft hole corresponds to the central hole of the auxiliary crank portion, the auxiliary through hole corresponds to the auxiliary pedal hole of the auxiliary crank portion, and the auxiliary reinforcing plate is contained in the auxiliary crank portion.

9. The driving mechanism as claimed in claim 8, wherein the reinforcing plate and the auxiliary reinforcing plate are provided with a through-hole portion, so that the reinforcing plate is contained in the inside of the combination of the wheel disk portion and the crank portion to be preferably combined with the wheel disk portion and the crank portion, and the auxiliary reinforcing plate is contained in the auxiliary crank portion to be preferably combined with the auxiliary crank portion.