CN216546546U - Gear disc assembly, gear disc mechanism and sharing bicycle - Google Patents

Abstract

The embodiment of the disclosure provides a fluted disc assembly, a fluted disc mechanism and a sharing bicycle, relates to the technical field of bicycles and aims to solve the problems that the production cycle of the sharing bicycle is prolonged and the production cost is increased. This fluted disc subassembly includes fluted disc, first crank and retaining member, and first crank includes the link and is located the connecting portion on the link terminal surface, and connecting portion wear to establish in fluted disc and retaining member, and the retaining member is pressed and is established in the relative one side of fluted disc and first crank to can dismantle with connecting portion and be connected. The fluted disc assembly of the embodiment of the disclosure can shorten the production cycle of the sharing bicycle and reduce the production cost of the sharing bicycle.

Description

Gear disc assembly, gear disc mechanism and sharing bicycle

Technical Field

The embodiment of the disclosure relates to the technical field of bicycles, in particular to a fluted disc assembly, a fluted disc mechanism and a shared bicycle.

Background

In recent years, with the rapid development of mobile internet technology and intelligent mobile terminals, the shared bicycle service has developed into a convenient and efficient bicycle shared travel service. Consumers often choose a share sheet as a transportation tool when traveling on short distances.

The shared bicycle provides a lot of convenience for people and brings a lot of problems, for example, the shared bicycle is exposed to the external environment for a long time and is easy to damage due to unattended operation, so that the service life of the shared bicycle is short. At present, strict regulations are provided for the service life of the shared bicycle in related laws and regulations, and the shared bicycle with the expired service life is subject to scrapping treatment and cannot be used by wide users.

However, the expired sharing bicycle is discarded, which may result in an unreasonably long production cycle of the sharing bicycle and an increase in the production cost of the sharing bicycle.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a gear disc assembly, a gear disc mechanism and a shared bicycle, and aims to solve the problems of long production cycle and high production cost of the existing shared bicycle.

In a first aspect, an embodiment of the present disclosure provides a fluted disc assembly applied to a fluted disc mechanism of a shared bicycle, the fluted disc assembly includes a fluted disc, a first crank and a retaining member, the first crank includes a connecting end and is located connecting portions on the end face of the connecting end, the connecting portions are worn to establish the fluted disc with in the retaining member, the retaining member is pressed to establish the fluted disc with the one side that the first crank is relative, and with the connection can be dismantled to the connecting portions.

In an optional implementation manner, the connecting portion includes a first connecting portion and a second connecting portion located on the end surface of the connecting end, the second connecting portion is connected to the first connecting portion and located at a side of the first connecting portion facing the retaining member, and the second connecting portion is inserted into the retaining member and detachably connected to the retaining member.

In an optional embodiment, the fluted disc is sleeved on the first connecting portion and detachably connected with the first connecting portion.

In an alternative embodiment, the toothed disc has an abutment surface against which the locking member abuts, the abutment surface being disposed to protrude from the first connecting portion, or the abutment surface being flush with a surface of the first connecting portion.

In an alternative embodiment, the first connecting portion and the second connecting portion are coaxially disposed on an end surface of the connecting end, and the second connecting portion is a protruding structure on the first connecting portion.

In an alternative embodiment, the locking member has a through hole therein, which is adapted to the structure of the second connecting portion, and the second connecting portion is inserted into the through hole and is in threaded connection with the locking member.

In an alternative embodiment, the peripheral side of the retaining member has a notch.

In an optional implementation manner, the fluted disc has a fitting hole for the connecting portion to pass through, a first limiting portion is disposed on a hole wall of the fitting hole, a second limiting portion structurally matched with the first limiting portion is disposed on a side wall of the first connecting portion, and one of the first limiting portion and the second limiting portion is disposed in the other one of the first limiting portion and the second limiting portion in a penetrating manner.

In an alternative embodiment, the first stopper portion is at least one of a projection and a groove on a hole wall of the fitting hole.

In an alternative embodiment, the peripheral side edge of the first connection portion is arranged to protrude beyond the second connection portion.

In an alternative embodiment, the connecting portion is a raised structure on an end face of the connecting end.

In a second aspect, embodiments of the present disclosure provide a chainring mechanism comprising a second crank connected to a connecting end of a first crank of a chainring assembly and a chainring assembly as described above.

In a third aspect, an embodiment of the present disclosure provides a shared bicycle, where the shared bicycle includes a frame and the above-mentioned toothed disc mechanism, where the toothed disc mechanism is disposed on the frame, a first crank of the toothed disc mechanism is a right crank of the shared bicycle, and a second crank of the toothed disc mechanism is a left crank of the shared bicycle.

The embodiment of the present disclosure provides a pair of fluted disc subassembly, fluted disc mechanism and sharing bicycle, connecting portion through set up first articulate link in the fluted disc subassembly, fluted disc and retaining member, connecting portion wear to establish in fluted disc and retaining member, the embodiment of the present disclosure sets up in the relative one side of fluted disc and first crank through the retaining member pressure, and can dismantle with connecting portion and be connected, not only can fix and lock the fluted disc on first crank through the retaining member like this, realize that fluted disc and first articulate can dismantle and be connected, thereby increase first articulate utilization ratio, realize first articulate reuse function, and can be convenient for the assembly of fluted disc subassembly, reduce the after-sale cost of maintenance of fluted disc subassembly, thereby realize shortening the production cycle of fluted disc subassembly and sharing bicycle, reduce the effect of the production cost of fluted disc subassembly and sharing bicycle.

Various possible embodiments of the present disclosure and technical advantages thereof will be described in detail below.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural view of a shared bicycle at a first viewing angle according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view of a shared bicycle at a second viewing angle according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a fluted disc mechanism in the related art;

fig. 4 is a schematic structural diagram of a gear disc assembly provided in an embodiment of the present disclosure at a first viewing angle;

FIG. 5 is a schematic structural diagram of a gear disc assembly provided in an embodiment of the present disclosure at a second viewing angle;

FIG. 6 is an exploded view of a gear disc assembly provided by an embodiment of the present disclosure;

FIG. 7 is a schematic view of the assembly of a retaining member and a first crank provided in accordance with an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a first crank provided in the embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a fluted disc according to an embodiment of the present disclosure.

Description of reference numerals:

100-sharing a bicycle; 10-a frame; 20-a fluted disc assembly; 21-a first crank; 211-a connection end; 2111-mounting holes; 212-a connecting portion; 2121-a first connection; 2122-a second limiting part; 2123-a second connecting portion;

22-a fluted disc; 221-a butting face; 222-assembly holes; 223-tooth tip; 224-a first stop; 225-lightening holes; 23-a locking member; 231-a through hole; 232-notch;

30-the medial axis; 40-a second crank; 50-treading; 60-a chain; 70-a flywheel; 80-a front wheel assembly; 90-rear wheel assembly.

With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Examples

Embodiments of the present disclosure provide a shared bicycle that may include, but is not limited to, a human-powered shared bicycle and a power-shared bicycle (i.e., a shared electric bicycle). For example, sharing a bicycle includes, but is not limited to, sharing a bicycle. Wherein, the manpower sharing bicycle can also be called as the manpower sharing bicycle sharing electric bicycle.

The structure of the chain wheel assembly, the chain wheel mechanism and the shared bicycle in the embodiment of the present disclosure will be further described below by taking a manpower shared bicycle as an example.

Fig. 1 is a schematic structural view of a shared bicycle provided in an embodiment of the present disclosure at a first viewing angle, and fig. 2 is a schematic structural view of the shared bicycle provided in the embodiment of the present disclosure at a second viewing angle.

Fig. 1 and fig. 2 are schematic structural diagrams respectively illustrating the entire shared bicycle from different viewing angles, where fig. 1 may be regarded as a schematic structural diagram of a right side surface of the shared bicycle, and fig. 2 may be regarded as a schematic structural diagram of a left side surface of the shared bicycle.

Referring to fig. 1 and 2, a shared bicycle 100, such as a human-powered shared bicycle, may include a frame 10 and a chainring mechanism, which may be disposed on frame 10. The fluted disc mechanism may include a fluted disc assembly 20, and the fluted disc assembly 20 includes a first crank 21. The chainring mechanism may also include a second crank 40. In the embodiment of the present disclosure, the first crank 21 may also be referred to as a right crank of the shared bicycle 100, and the second crank 40 may also be referred to as a left crank of the shared bicycle 100. The second crank 40 may be connected with the first crank 21. The second crank 40 is usually connected to the first crank 21 through the middle shaft 30, wherein the frame 10 may be provided with a five-way at a position opposite to the fluted disc mechanism, the middle shaft 30 may be inserted into the five-way, and two ends of the middle shaft 30 are respectively connected to the first crank 21 and the second crank 40 and together with the second crank 40 and the fluted disc assembly 20 form the fluted disc mechanism.

As can be seen in fig. 1 and 2, the bicycle 100, such as a manpower-sharing bicycle, may further include a front wheel assembly 80, a rear wheel assembly 90, two pedals 50, a flywheel 70, and a chain 60, wherein the front wheel assembly 80 and the rear wheel assembly 90 are respectively mounted to the front end and the rear end of the frame 10, and the chainring mechanism may be provided on the frame 10 between the front wheel assembly 80 and the rear wheel assembly 90. The flywheel 70 may be provided on the rear wheel assembly 90, and the chain 60 may be wound across the toothed disc 22 of the flywheel 70 and the toothed disc assembly 20 as shown in the drawings to connect the flywheel 70 and the flywheel 70. Two footrests 50 may be attached to the ends of the first and second cranks 21, 40, respectively. The pedals 50, chain 60 and chainring mechanism may constitute a drive means for the shared bicycle 100. When an external force, such as a pedaling force, acts on the pedals 50 to rotate the pedals 50, the toothed disc 22 can be driven by the first crank 21 and the second crank 40 to rotate relative to the frame 10, and the flywheel 70 can be driven by the chain 60 to rotate relative to the frame 10, so as to drive the shared bicycle 100 to run.

Since the shared bicycle 100 is exposed to the external environment for a long time and is easily damaged due to unattended operation, the shared bicycle 100 has a shorter service life compared with a common bicycle. At present, in order to protect the safety of a large number of users and reduce the possibility of danger when the users use the shared bicycle 100 as much as possible, strict regulations are provided for the service life of the shared bicycle 100 in relevant laws and regulations, wherein the service life of the shared bicycle 100 is specified to be three years. The shared bicycle 100 with the expiration of three years is discarded, so that the shared bicycle 100 with the expiration of three years is prevented from being put on the market, and the possibility of danger when the user uses the shared bicycle 100 is reduced.

However, the strength and the service life of many parts on the sharing bicycle 100 are much higher than the regulations of the sharing bicycle 100 in the three-year usage scenario, and many parts on the sharing bicycle 100 will be scrapped on the vehicle after the sharing bicycle 100 is used up in the market.

With the rising of the unit price of the metal raw materials for manufacturing the shared bicycle 100 and the positive response to the national requirements of energy-saving, emission-reducing and environmental-protection policies, the reuse function of some parts of the shared bicycle 100 is realized by improving the strength and the service life of the parts of the key parts of the shared bicycle 100 or by simply modifying part of the parts of the shared bicycle 100 at low cost, and the development trend of the future research and development and design of the shared bicycle 100 will be realized.

Fig. 3 is a schematic structural diagram of a fluted disc mechanism in the related art.

As shown in fig. 3, the conventional shared bicycle 100 uses a fluted disc mechanism as shown in fig. 3, in which the first crank 21a (right crank) is integrally connected with the fluted disc 22a, that is, the conventional shared bicycle 100 uses an integral fluted disc assembly.

After the shared bicycle 100 expires, the gear disc assembly will be scrapped. Although the tooth tip 223a of the toothed plate 22a is the portion of the shared bicycle 100 that wears the most quickly and easily during daily riding, the strength of the first and second cranks 21a and 40 can withstand the service life (i.e., the life cycle) of at least two shared bicycles, and the manufacturing cost of the first and second cranks 21a and 40 is high. When the first crank 21a and the toothed disc 22a are scrapped, the function of the first crank 21a is not utilized to the maximum, so that the toothed disc assembly has higher manufacturing cost, but the scrapping residual value is low.

The low scrap value of the gear disc assembly can be understood as the low economic value of the gear disc assembly which can be utilized after the gear disc assembly is scrapped along with a vehicle.

In addition, with the diversification of models of the shared bicycle 100, the specifications (such as the number of teeth) of different fluted discs 22a result in the increase of Stock Keeping Units (SKUs). To facilitate later maintenance of the space-sharing bicycle 100, individual sets of disc assemblies of different sizes of the toothed discs 22a are typically purchased and stored, which may undesirably increase the post-sale maintenance costs of the disc assemblies, which may include, but are not limited to, procurement transportation costs and inventory area, thereby increasing the later operational maintenance costs of the space-sharing bicycle 100.

In view of the above, the disclosed embodiments provide a chain wheel assembly, which can be applied to a chain wheel mechanism of a shared bicycle, the traditional fluted disc assembly is reformed through the arrangement of the fluted disc, the locking piece and the connecting part on the first crank in the fluted disc assembly, wherein the connecting part is arranged in the fluted disc and the locking part in a penetrating way and is pressed on one surface of the fluted disc opposite to the first crank through the locking part, and is detachably connected with the connecting part, the first crank and the fluted disc are connected through the locking part, and the fluted disc is locked and fixed on the basis of the first crank, thereby not only realizing the multiplexing function of the first crank and increasing the utilization rate of the first crank, but also being convenient for the assembly of the fluted disc assembly and reducing the after-sale maintenance cost of the fluted disc assembly, therefore, the production cycle of the gear disc assembly and the shared bicycle is shortened, and the production cost of the gear disc assembly and the shared bicycle is reduced.

Fig. 4 and 5 are schematic structural diagrams of a chain wheel assembly at different viewing angles, which can be applied to a chain wheel mechanism of a shared bicycle.

Referring to fig. 4 and 5, the gear disc assembly 20 may include a gear disc 22, a first crank 21, and a locking member 23, wherein the first crank 21 may include a connecting end 211 and a connecting portion 212 on an end surface of the connecting end 211. As shown in fig. 4 and 5, the connecting portion 212 can be inserted into the gear plate 22 and the locking member 23, and the locking member 23 is pressed against a surface of the gear plate 22 opposite to the first crank 21 and is detachably connected to the connecting portion 212. The connecting portion 212 may be a raised structure on the end surface of the connecting end 211, so that the connecting portion 212 is inserted into the gear plate 22 and the locking member 23.

The embodiment of the disclosure modifies a conventional gear disc assembly 20 (such as shown in fig. 3) by providing the connecting portion 212 of the connecting end 211 of the first crank 21, the fluted disc 22 and the retaining member 23 in the gear disc assembly 20, and the fluted disc 22 is fixed and locked at the connecting end 211 of the first crank 21 by the retaining member 23, so that while stable connection between the fluted disc 22 and the first crank 21 is achieved, an integrated connection between the first crank 21 and the fluted disc 22 is modified into a detachable connection, detachable connection between the fluted disc 22 and the first crank 21 is achieved, so that after the use period of the shared bicycle 100 expires, the first crank 21 can be detached from the fluted disc 22, thereby preventing the first crank 21 from being scrapped together with the fluted disc 22, so as to make secondary use of the first crank 21, increase the utilization rate of the first crank 21, and achieve the multiplexing function of the first crank 21, thereby shortening the production cycle of the gear disc assembly 20 and the shared bicycle 100, the production cost of the gear plate assembly 20 and the shared bicycle 100 is effectively reduced.

On this basis, this disclosed embodiment is fixed with fluted disc 22 and is locked at the link 211 of first crank 21 through retaining member 23, when realizing dismantling the connection between fluted disc 22 and the first crank 21, not only be convenient for the assembly of fluted disc subassembly 20, so as to realize the rapid Assembly and the dismantlement of fluted disc 22 on first crank 21, and can also strengthen first crank 21 and fluted disc 22's universal ratio higher, on ensuring that fluted disc subassembly 20 can satisfy in different specifications fluted disc 22 and the basis of motorcycle type sharing bicycle 100, only need purchase different specifications such as the purpose that fluted disc subassembly 20 can be reached to the fluted disc 22 of tooth number, need not to purchase whole set of fluted disc subassembly 20, not only can great reduction the purchase cost of transportation and the stock area of fluted disc subassembly 20, reduce the after-sale cost of maintenance of fluted disc subassembly 20.

In addition, when the gear disc assembly 20 of the embodiment of the present disclosure is maintained, the gear disc 22 is detached from the first crank 21 only by acting on the locking member 23, and the gear disc 22 is replaced, so that the gear disc assembly 20 of the shared bicycle 100 can be quickly maintained, and the universal repairing function of the shared bicycle 100 in all series of vehicle types is facilitated, so as to achieve the purposes of cost reduction and efficiency improvement.

Wherein the connecting end 211 can be understood as the end of the first crank 21 opposite to the foothold 50. As shown in fig. 4 and 5, the connecting end 211 has a mounting hole 2111 for the middle shaft 30 to pass through. For example, the mounting holes 2111 may include, but are not limited to, through holes. One end of the middle shaft 30 may penetrate through the mounting hole 2111 of the connecting end 211 and be connected with the first crank 21, and the other end of the middle shaft 30 may sequentially penetrate through the fluted disc 22 and the locking member 23 and penetrate through the five-way connection to be connected with the second crank 40, so as to realize the connection of the first crank 21 and the second crank 40 and the installation on the frame 10.

Since the thickness of the fluted disc 22 is small, the fluted disc 22 can also be called as a fluted disc, and fluted discs 22 with different specifications can have different numbers of tooth tips 223 so as to meet the requirements of the shared bicycle 100 of different vehicle types. The tooth tip 223 may also be referred to as a tooth of the toothed disc 22. Thus, when the tips 223 of the toothed disc 22 are worn more severely, the toothed disc 22 can be replaced, thereby repairing the toothed disc assembly 20 on the shared bicycle 100.

Fig. 6 is an exploded view of a gear disc assembly according to an embodiment of the present disclosure, fig. 7 is an assembled view of a locking member and a first crank according to an embodiment of the present disclosure, and fig. 8 is a structural view of a first crank according to an embodiment of the present disclosure.

Referring to fig. 6 to 8, the connection part 212 may include a first connection part 2121 and a second connection part 2123 on an end surface of the connection end 211, and the second connection part 2123 is connected to the first connection part 2121 and is located at a side of the first connection part 2121 facing the locker 23. Illustratively, the second connection portion 2123 may be a raised structure on the first connection portion 2121. This facilitates the insertion of the second connecting portion 2123 into the locking member 23 to connect the connecting portion 212 and the locking member 23.

The second connecting portion 2123 can be inserted into the locking member 23 and detachably connected to the locking member 23. Through the arrangement of the second connecting portion 2123, the connection between the first crank 21 and the locking member 23 can be realized while the assembly of the toothed disc 22 on the connecting portion 212 of the first crank 21 is not affected, so that after the locking member 23 is assembled on the second connecting portion 2123 in place, the locking member can be pressed on the opposite surface of the toothed disc 22 to fix and lock the toothed disc 22 on the connecting end 211 of the first crank 21, thereby realizing the stable connection between the toothed disc 22 and the first crank 21.

In order to facilitate the second connecting portion 2123 to be inserted into the locking member 23, as shown in fig. 6, a through hole 231 adapted to the structure of the second connecting portion 2123 is formed in the locking member 23, and the second connecting portion 2123 can be inserted into the through hole 231 and threadedly connected to the locking member 23. The second connecting portion 2123 may have an external thread thereon, and the through hole 231 may have an internal thread therein. Illustratively, the locking member 23 may include, but is not limited to, a screw piece configured to fit the second connecting portion 2123. The structure of the locking member 23 may include, but is not limited to, a circle, a polygon, etc. When the locker 23 is a circular screw piece, the locker 23 may be understood as a ring structure. Thus, the second connecting portion 2123 is threaded into the through hole 231 and is connected to the locking member 23, so that the toothed disc 22 is fixed and locked to the first crank 21 by the locking member 23.

To facilitate the connection of the locker 23 with the second connecting portion 2123, referring to fig. 6, the locker 23 has a notch 232 on the circumferential side. Thus, by the arrangement of the notch 232, the external force acting on the locking member 23 can be facilitated, so that the locking member 23 can be quickly mounted and dismounted on the second connecting portion 2123.

As shown in fig. 6, toothed plate 22 has an abutment surface 221 against which retaining member 23 abuts, wherein the surface of toothed plate 22 opposite retaining member 23 can be understood as abutment surface 221. In some embodiments, the abutting surface 221 may be disposed to protrude from the first connecting portion 2121. Alternatively, in other embodiments, the abutment surface 221 may also be flush with the surface of the first connection portion 2121. Alternatively, a protrusion may be disposed on a surface of the locking member 23 facing the gear plate 22, and the protrusion may abut against the abutting surface 221. Thus, the structure of the fluted disc assembly 20 can be diversified while ensuring that the locking member 23 can be pressed on the fluted disc 22 to fix and lock the fluted disc 22 on the connecting end 211 of the first crank 21. In this embodiment, the abutting relationship between the locking member 23 and the toothed plate 22 is not further limited.

As shown in fig. 6, the gear plate 22 can be sleeved on the first connecting portion 2121 and detachably connected to the first connecting portion 2121. Through the arrangement of the first connecting portion 2121, not only can the fluted disc 22 be pre-fixed on the connecting portion 212, but also the fluted disc 22 can be clamped between the end surface of the connecting end 211 of the first crank 21 and the locking member 23, so that the fluted disc 22 is fixed and locked on the end surface of the connecting end 211 through the locking member 23, and the fluted disc 22 and the first crank 21 are stably connected, and the safety performance of the shared bicycle 100 is enhanced.

To facilitate the engagement of the toothed plate 22 on the first connecting portion 2121, the toothed plate 22 has a mounting hole 222 therein for the connecting portion 212, such as the first connecting portion 2121, to pass through. In some embodiments, the same size aperture can be used for the assembly aperture 222 and the aperture of the through-hole 231 in retaining member 23. Alternatively, in other embodiments, different sized apertures can be used for the mounting hole 222 and the aperture of the through hole 231 in retaining member 23. Thus, the connecting part 212 can be arranged in the fluted disc 22 and the locking part 23 in a penetrating way, and the structure of the fluted disc assembly 20 can be diversified.

It should be noted that, in order to ensure that the locking member 23 can be pressed against the toothed plate 22, the outer diameter of the locking member 23 is larger than the diameter of the assembling hole 222.

In order to facilitate the connection portion 212 to penetrate through the toothed disc 22 and the locking member 23, as shown in fig. 8, the first connection portion 2121 and the second connection portion 2123 are coaxially disposed on the end surface of the connection end 211, so that the connection portion 212 can penetrate through the toothed disc 22 and the locking member 23 and is connected with the locking member 23 through the second connection portion 2123, the structures of the first crank 21 and the locking member 23 can be simplified, and the production cost of the gear assembly and the shared bicycle 100 can be reduced.

Fig. 9 is a schematic structural diagram of a fluted disc according to an embodiment of the present disclosure.

In order to prevent the toothed plate 22 from rotating relative to the connecting portion 212 during the process of assembling the retaining member 23, in some embodiments, referring to fig. 9, the hole wall of the assembling hole 222 of the toothed plate 22 may be provided with a first limiting portion 224, the side wall of the first connecting portion 2121 is provided with a second limiting portion 2122 matched with the first limiting portion 224, and one of the first limiting portion 224 and the second limiting portion 2122 is inserted into the other. Thus, the first limiting portion 224 and the second limiting portion 2122 are matched with each other, so that the toothed disc 22 can be pre-assembled on the first connecting portion 2121, and therefore, the rotation of the toothed disc 22 relative to the connecting portion 212 in the process of assembling the locking member 23 can be effectively reduced or avoided, so as to achieve the rapid assembly of the toothed disc 22 and the first crank 21.

The first stopper portion 224 may be at least one of a protrusion and a groove on a hole wall of the fitting hole 222. That is, as shown in fig. 9, the first stopper portion 224 may be a projection on the hole wall of the fitting hole 222 of the toothed plate 22. Alternatively, the first stopper portion 224 may be a groove on the hole wall of the fitting hole 222 of the toothed plate 22. Alternatively, the wall of the mounting hole 222 of the gear plate 22 has both a groove and a protrusion, and the protrusion and the groove may together form the first position-limiting portion 224. The structure of the second position-limiting portion 2122 can be changed along with the change of the structure of the first position-limiting portion 224, so as to ensure that one of the first position-limiting portion 224 and the second position-limiting portion 2122 is inserted into the other. This allows the structure of the fluted disc assembly 20 to be more varied while achieving pre-assembly of the fluted disc 22 on the first connecting portion 2121.

The structure of the disk assembly 20 according to the embodiment of the present disclosure will be further described by taking the first limiting portion 224 as a protrusion on the hole wall of the mounting hole 222 of the gear disk 22 as an example.

While the first stopper portion 224 may be a protrusion on the wall of the mounting hole 222 of the toothed disc 22, the second stopper portion 2122 may be a groove on the side wall of the first connecting portion 2121. When the toothed disc 22 is sleeved on the first connecting portion 2121, the first limiting portion 224 can be inserted into the second limiting portion 2122, and the toothed disc 22 can be pre-assembled on the first connecting portion 2121 by the cooperation of the first limiting portion 224 and the second limiting portion 2122.

To facilitate the engagement of the toothed plate 22 on the first connecting portion 2121, as shown in fig. 8, in some embodiments, the peripheral edge of the first connecting portion 2121 may protrude from the second connecting portion 2123. That is, the first connection portion 2121 may have an outer diameter greater than that of the second connection portion 2123. Thus, in the process of sleeving the toothed disc 22 on the first connecting portion 2121, the second connecting portion 2123 can be prevented from interfering with the sleeving process of the toothed disc 22 on the first connecting portion 2121.

It should be noted that, in some embodiments, as shown in fig. 9, a plurality of weight-reducing holes 225 may be further disposed on the toothed plate 22, and the plurality of weight-reducing holes 225 may be uniformly distributed on the peripheral side of the mounting hole 222. Thus, the weight of the toothed disc 22 and the toothed disc assembly 20 can be reduced through the lightening holes 225 without affecting the connection between the toothed disc 22 and the first crank 21, which is beneficial to improving the user experience of the shared bicycle 100.

According to the embodiment of the disclosure, through the arrangement of the connecting portion 212 on the fluted disc 22, the locking member 23 and the first crank 21 in the fluted disc assembly 20, the connecting portion 212 is arranged in the fluted disc 22 and the locking member 23 in a penetrating manner, the locking member 23 is arranged on the opposite side of the fluted disc 22 and the first crank 21 in a pressing manner and is detachably connected with the connecting portion 212, so that the fluted disc 22 and the first crank 21 are detachably connected, thereby not only realizing the multiplexing function of the first crank 21 and increasing the utilization rate of the first crank 21, but also reducing the after-sale maintenance cost of the fluted disc assembly 20, further shortening the production cycle of the fluted disc assembly 20 and the shared bicycle 100 and reducing the production cost of the fluted disc assembly 20 and the shared bicycle 100.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. The embodiments of the disclosure are intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (13)

1. The utility model provides a fluted disc subassembly, is applied to fluted disc mechanism of sharing bicycle, a serial communication port, fluted disc subassembly includes fluted disc, first crank and retaining member, first crank includes the link and is located connecting portion on the link terminal surface, connecting portion wear to establish the fluted disc with in the retaining member, the retaining member is pressed and is established the fluted disc with the one side that first crank is relative, and with the connection can be dismantled to connecting portion.

2. The gear disc assembly according to claim 1, wherein the connecting portion comprises a first connecting portion and a second connecting portion, the first connecting portion is located on an end face of the connecting end, the second connecting portion is connected with the first connecting portion and located on a side, facing the locking member, of the first connecting portion, and the second connecting portion penetrates through the locking member and is detachably connected with the locking member.

3. The gear disc assembly according to claim 2, wherein said gear disc is sleeved on said first connecting portion and detachably connected to said first connecting portion.

4. The chainring assembly of claim 3, wherein the chainring has an abutment surface against which the retaining member abuts, the abutment surface being disposed proud of the first connection portion or being flush with a surface of the first connection portion.

5. The crankset assembly of claim 3, wherein the first and second coupling portions are coaxially disposed on an end face of the connecting end, the second coupling portion being a raised formation on the first coupling portion.

6. The crankset assembly of claim 3, wherein the retaining member has a through hole therein adapted to the configuration of the second connecting portion, the second connecting portion being disposed through the through hole and threadedly coupled to the retaining member.

7. The gear disc assembly of claim 6 wherein a peripheral side of the retaining member has a notch.

8. The chain wheel assembly according to any one of claims 3-7, wherein the chain wheel has a mounting hole for the connecting portion to pass through, a first position-limiting portion is disposed on a wall of the mounting hole, a second position-limiting portion structurally matched with the first position-limiting portion is disposed on a side wall of the first connecting portion, and one of the first position-limiting portion and the second position-limiting portion is disposed in the other.

9. The crankset assembly of claim 8, wherein the first stop portion is at least one of a projection and a recess on a wall of the assembly hole.

10. The crankset assembly of claim 8, wherein a peripheral side edge of the first connecting portion is disposed proud of the second connecting portion.

11. The gear disc assembly according to any one of claims 1-7 wherein said connection is a raised formation on an end face of said connection end.

12. A chainring mechanism comprising a second crank and a chainring assembly according to any of claims 1 to 11, the second crank being connected to the connecting end of the first crank in the chainring assembly.

13. A shared bicycle comprising a frame and a chainring mechanism as set forth in claim 12 disposed on the frame, a first crank of the chainring mechanism being a right crank of the shared bicycle and a second crank of the chainring mechanism being a left crank of the shared bicycle.

Images