CN213332245U - Chain guide device and vehicle - Google Patents
Chain guide device and vehicle Download PDFInfo
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- CN213332245U CN213332245U CN202021676993.1U CN202021676993U CN213332245U CN 213332245 U CN213332245 U CN 213332245U CN 202021676993 U CN202021676993 U CN 202021676993U CN 213332245 U CN213332245 U CN 213332245U
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- chain
- guide
- hole
- chainring
- vehicle
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Abstract
The utility model relates to a chain guide and vehicle, this chain guide includes: the guide piece comprises a guide part and a supporting part connected with the guide part, and the guide part is used for abutting against the chain; the supporting part is hinged with the rocker arm; an elastic member configured to provide an elastic force to the swing arm so that the swing arm can swing about a set axis to drive the guide portion to apply a tension to the chain. The utility model has the advantages of, chain guide simple structure, the volume that occupies is little, installs and uses in the little space of vehicle more easily.
Description
Technical Field
The utility model relates to a chain drive technical field, more specifically, the utility model relates to a chain guide and vehicle.
Background
The existing chain guider structure adopts a gear type small guide wheel to guide a chain. The conventional guide wheel generally needs more teeth, so that the diameter of the gear is larger, the volume of the guide body is overlarge, and more space is occupied.
In the structure of chain transmission, the space is limited, and the chain guide with larger volume occupies too large space, which can influence the normal work and use of other parts. And the guide device, which is too bulky, is not easily installed in a limited space.
Therefore, a new technical solution is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a new technical scheme of chain guiding device.
According to a first aspect of the present disclosure, there is provided a chain guide device including:
the guide piece comprises a guide part and a supporting part connected with the guide part, and the guide part is used for abutting against the chain;
the supporting part is hinged with the rocker arm;
an elastic member configured to provide an elastic force to the swing arm so that the swing arm can swing about a set axis to drive the guide portion to apply a tension to the chain.
Optionally, stopping portions are respectively arranged on two sides of the guide portion along the direction of the chain.
Optionally, the guide portion is provided with a guide rib along the direction of the chain, and the guide rib abuts against the chain.
Optionally, the guide portion forms a groove structure, and at least a part of the bottom of the groove structure is abutted against the chain.
Optionally, the guide part is an arc-shaped structure with a middle part protruding towards the chain.
Optionally, the supporting portion is a plate, the plate is connected to the first surface of the guide portion, and the second surface of the guide portion abuts against the chain.
Optionally, the rocker arm includes a first end and a second end opposite to the first end, the support portion is hinged to the first end, and the elastic member is connected to the second end.
Optionally, the supporting portion is provided with a first through hole, the first end is provided with a second through hole, and the first through hole is hinged to the second through hole through a pin.
Optionally, the second end is provided with a third through hole, an axial direction of the third through hole is parallel to an axial direction of the second through hole, the elastic member provides elastic force along a circumferential direction of the third through hole, and the third through hole is configured to enable the second end to be hinged to the frame.
Optionally, the second end is provided with an accommodating cavity, and the elastic member is located in the accommodating cavity.
Optionally, the elastic member is a torsion spring.
According to a second aspect of the present disclosure, there is provided a vehicle including:
a frame;
in the chain guide as claimed in any one of the above claims, the rocker arm is hinged to the frame.
Optionally, the vehicle further comprises a chain, a first chainring and a second chainring;
the first gear disc and the second gear disc are respectively connected with the frame, and the chain is matched with the first gear disc and the second gear disc;
the first chainring has a diameter greater than a diameter of the second chainring, the first chainring being closer to the chain guide than the second chainring, the chain abutting the guide.
One technical effect of the present disclosure is that the chain guide is simple in structure, occupies a small volume, and is easier to install and use in a small space of a vehicle.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is an exploded view of a chain guide in one embodiment of the present disclosure.
Fig. 2 is a schematic structural view of a chain guide in one embodiment of the present disclosure.
Description of reference numerals:
1: guide portion, 11: a stopper portion, 12: guiding convex rib, 2: support portion, 21 first through hole, 3: rocker arm, 31: second through hole, 32: third through hole, 33: accommodating cavity, 4: a connecting member.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
According to an embodiment of the present disclosure, there is provided a chain guide device, as shown in fig. 1, 2, including: the guide piece comprises a guide part 1 and a supporting part 2 connected with the guide part 1, and the guide part 1 is used for abutting against a chain; the rocker arm 3, the support part 2 plays a role in supporting the guide part 1, and the support part 2 is hinged with the rocker arm 3; an elastic member configured to provide an elastic force to the swing arm 3 so that the swing arm 3 can swing about a set axis to drive the guide 1 to apply a tension to the chain. For example, the elastic force provided by the elastic member drives the rocker arm 3 to swing, and the swing of the rocker arm 3 drives the guide portion to apply tension to the chain, so that the guide portion 1 tensions the chain. The tensioned chain moves along the guide part 1, which plays a guiding role.
In this embodiment, the guide part 1 provides a tensioning force to the chain against the chain, thereby moving the chain on the guide part 1 and enabling the guide part 1 to guide the chain. The structure of this guide part can satisfy the guide effect, simple structure, and the volume that occupies is little, installs the use in the little space of vehicle more easily. The chain is guided without a gear occupying a larger volume.
For example, the guide 1 may be a sheet-like structure, one surface of which abuts against the chain. Tension is formed under the action of the elastic part and the rocker arm 3, and the purpose of guiding is achieved.
For example, the guide portion may be a cylindrical structure having an axial direction that is the same as the direction of the chain, so that the chain abuts against the side wall of the cylindrical structure. Tension is formed under the action of the elastic part and the rocker arm 3, and the purpose of guiding is achieved.
In one embodiment, as shown in fig. 1, the guide part 1 is provided with a stop 11 on each side along the chain. The two sides of the chain run refer to the two sides along the direction of chain movement. The structure of the stop 11 also extends along the chain run to provide a protective effect on both sides. When the chain is laterally deviated, the chain can be prevented from being separated from the guide part 1, and the guiding reliability of the guide part 1 can be improved.
In one example, as shown in fig. 1, the stopping portion 11 may be a plate-like structure, and side walls are formed on both sides to prevent the chain from being separated from the guiding portion 1.
In one example, the stop 11 may comprise a plurality of protrusions spaced apart in a direction along the run of the chain. Compared with the side wall of the plate-shaped structure, the protrusions distributed at intervals enable the stopping part 11 to occupy smaller volume, and the whole weight of the guide part 1 is reduced, so that the load of the chain guide device on the mounted vehicle is reduced.
In one example, as shown in fig. 1, the guide part 1 is provided with a guide rib 12 along the running direction of the chain, and the guide rib 12 abuts against the chain.
The guide ribs 12 protrude from the surface of the guide portion 1, and can support the chain. And avoid the surface of guide part 1 and chain direct contact, can wear gradually at the in-process that the chain offsets with direction protruding muscle 12, under the circumstances that direction protruding muscle 12 wears to be not enough to support the chain, the surface contact of chain and guide part 1. Therefore, the provision of the guide ribs 12 can increase the service life of the guide portion 1.
The guide rib 12 is worn to an extent that it is not sufficient to support the chain, meaning that the guide rib 12 is worn to a position of the chain at the guide rib 12, and the links of the chain are in contact with the surface of the guide portion 1. And there is a clearance between the roller on the chain and the guide convex rib 12, and the guide convex rib 12 cannot be against the chain.
In one embodiment, the guide part 1 forms a groove structure, the bottom of which at least partly abuts against the chain. The groove structure may be a structure in which a lower surface than a plane is cut out on the guide portion 1 as a bottom surface, and sidewalls higher than the bottom surface are left on both sides of the bottom surface, thereby forming the groove structure. Or an integrally formed groove structure.
The bottom surface of the groove structure is abutted against the chain, and the side walls on the two sides of the bottom surface limit the chain to transversely separate from the chain, so that the guide effect is achieved.
In one embodiment, the support 2 is a plate connected to a first surface of the guide 1, and a second surface of the guide 1 abuts against the chain. The first surface is opposite to the second surface.
In this embodiment, the support portion 2 supports the guide portion 1 taking up a certain space. By forming the support portion 2 as a plate, the space occupied by the support portion 2 itself can be reduced, and the weight of the support portion 2 can also be reduced. The plate is connected with the first surface of the guide part 1 to form a support, and the second surface of the guide part is abutted against the chain to achieve the purpose of guiding.
The guide part 1 can also be a plate, the second surface of the plate is abutted against the chain for guiding, and the other first surface opposite to the second surface is connected with the support part 2. The support part 2 is disposed perpendicular to the first surface of the guide part 1. The second surface may form an outwardly convex arc-shaped structure to make the guide portion 1 more adaptable to the shape of the chain after tensioning, improving the applicability of the chain guide.
In one embodiment, as shown in fig. 1, the supporting portion 2 is provided with a first through hole 21, the first end of the rocker arm 3 is provided with a second through hole 31, and the first through hole 21 and the second through hole 31 are hinged through a pin connection.
After the first through hole 21 is hinged to the second through hole 31, the first through hole 21 is coaxial with the second through hole 31, and the support portion 2 and the rocker arm 3 can be rotated around an axis coaxial with the first through hole 21 and the second through hole 31. The hinge formed by the pin has simple structure and is easier to process.
The first through hole 21 and the second through hole 31 may be hinged by a bolt and nut fit. The first through hole 21 and the second through hole 31 may be first provided with a sleeve for positioning, and then the sleeve is provided with a pin for forming a hinge, or the sleeve is provided with a bolt which is matched with a nut for forming a hinge. The first through hole 21 and the second through hole 31 may be hinged by a rivet or other structures.
In one embodiment, the guide part 1 is an arc-shaped structure with a middle part protruding towards the chain.
When the guide part 1 abuts against the chain, the chain may bend to different degrees. Set up guiding part 1 into the convex arc structure in middle part, can improve the adaptability of guiding part 1 to chain bending structure under the condition that provides the tensile force to improve the stability of direction.
In one embodiment, the rocker arm 3 comprises a first end to which the support 2 is hinged and a second end opposite to the first end to which the elastic member is connected.
The elasticity that the elastic component provided can make first end form the swing for the second end to make first end drive the guide and exert pressure to the chain direction, guide portion 1 forms the tensile force to the chain. For example, when the guide portion 1 abuts against the chain to form a tension force, the chain applies a pressure to the guide portion 1, and the elastic member provides an elastic force to make the first end drive the guide member to apply a pressure force to the chain, so as to keep the guide portion 1 to provide a tension force to the chain more stably.
In one embodiment, as shown in fig. 1, the second end is provided with a third through hole 32, an axial direction of the third through hole 32 is parallel to an axial direction of the second through hole 31, the elastic member provides an elastic force along a circumferential direction of the third through hole 32, and the third through hole 32 is configured to enable the second end to be hinged with a vehicle frame.
In this embodiment, on the vehicle on which the chain guide is provided, the second end is hinged to the frame of the vehicle through the third through hole 32, enabling the swing arm 3 to swing with respect to the frame. The swing of the swing arm 3 is specifically such that the first end swings centering on the third through hole 32. The elastic member provides elasticity for the swing. In the case where the guide portion 1 abuts against the chain, the swing arm 3 provides the guide portion 1 with an elastic force toward the chain, thereby achieving the purpose of forming a tension.
In one embodiment, the second end is provided with a receiving cavity 33, and the elastic member is located in the receiving cavity 33. The accommodating cavity 33 provides an installation space for the elastic piece, is convenient to install and set, and can protect the elastic piece. The receiving chamber 33 can be fixed to the vehicle frame and the swing arm 3 can swing relative to the receiving chamber 33, in which case the receiving chamber 33 forms an articulation with the swing arm 3.
In one embodiment, the elastic member is a torsion spring. The torsion spring can provide elastic force in the circumferential direction of the torsion spring. One end of the torsion spring may be fixed to the inside of the frame or the accommodating chamber 33, and the other end of the torsion spring may be fixed to the second end of the swing arm 3, so that the torsion spring generates an elastic force in a direction opposite to the swing direction when the swing arm 3 swings with respect to the accommodating chamber 33.
In one embodiment of the present disclosure, a vehicle is provided. Alternatively, the vehicle is a bicycle, a moped, a motorcycle, or the like.
The vehicle includes: a frame and a chain guide as in any of the above embodiments, said swing arm 3 being articulated to said frame.
The chain guide device in the vehicle can provide stable guiding function for the chain and simultaneously tension the chain. The chain guide device occupies a small space of a vehicle, is simple in structure, is easier to arrange on the vehicle, occupies less space, and cannot influence the arrangement of other parts.
In one embodiment, the vehicle further comprises a chain, a first chainring and a second chainring;
the first gear disc and the second gear disc are respectively connected with the frame, and the chain is matched with the first gear disc and the second gear disc;
the first chainring has a diameter greater than a diameter of the second chainring, the first chainring being closer to the chain guide than the second chainring, the chain abutting the guide.
In this embodiment, the chain is driven between at least the first and second chainrings, and the diameter of the first chainring is larger than the diameter of the second chainring, for example, the first chainring drives the second chainring to rotate via the chain. The chain guide is closer to the position of the first chainring. The guide 1 abuts the chain from a position close to the first toothed disc and forms a tensioning force.
Compared with the prior gear guide, the chain guide device has smaller volume and simple structure. More space is saved by arranging on the vehicle.
In one example, a link 4 may be provided on the vehicle frame, with the second end of the swing arm 3 being hingedly connected to the link 4. As shown in fig. 1, the connecting member 4 may be provided separately, and a specific shape and structure may be provided according to structural characteristics of different vehicles, so that the chain guide may be installed in vehicles of different models, and the adaptability of the chain guide may be improved.
A connection hole may be provided on the connection member 4, through which a hinge connection with the third through hole 32 is formed. The hinge may be formed between the connection hole and the third through hole 32 by a pin, or a bolt and a nut.
Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (13)
1. A chain guide device, comprising:
the guide piece comprises a guide part and a supporting part connected with the guide part, and the guide part is used for abutting against the chain;
the supporting part is hinged with the rocker arm;
an elastic member configured to provide an elastic force to the swing arm so that the swing arm can swing about a set axis to drive the guide portion to apply a tension to the chain.
2. The chain guide as claimed in claim 1, wherein the guide portion is provided with a stopper portion on each side along the chain.
3. The chain guide as claimed in claim 1, wherein the guide portion is provided with a guide rib along a running direction of the chain, the guide rib abutting against the chain.
4. The chain guide as set forth in claim 1, wherein said guide portion forms a groove structure having a bottom at least a portion thereof abutting the chain.
5. The chain guide as set forth in claim 1, wherein said guide portion is an arc-shaped structure having a middle portion projecting toward said chain.
6. The chain guide as set forth in claim 1, wherein said support portion is a plate member connected to a first surface of said guide portion and a second surface of said guide portion abutting the chain.
7. The chain guide as claimed in claim 1, wherein said rocker arm includes a first end and a second end opposite said first end, said support portion being hingedly connected to said first end, said resilient member being connected to said second end.
8. The chain guide as set forth in claim 7, wherein said support portion is provided with a first through hole, said first end is provided with a second through hole, and said first through hole is hinged to said second through hole by a pin connection.
9. The chain guide as claimed in claim 8, wherein the second end is provided with a third through hole having an axial direction parallel to an axial direction of the second through hole, the elastic member provides an elastic force in a circumferential direction of the third through hole, and the third through hole is configured to hinge the second end to the frame.
10. The chain guide as set forth in claim 7, wherein said second end defines a receiving cavity, said resilient member being located within said receiving cavity.
11. The chain guide as set forth in claim 1, wherein said resilient member is a torsion spring.
12. A vehicle, characterized by comprising:
a frame;
the chain guide as claimed in any one of claims 1-11, wherein said rocker arm is hinged to said frame.
13. The vehicle of claim 12, further comprising a chain, a first chainring, and a second chainring;
the first gear disc and the second gear disc are respectively connected with the frame, and the chain is matched with the first gear disc and the second gear disc;
the first chainring has a diameter greater than a diameter of the second chainring, the first chainring being closer to the chain guide than the second chainring, the chain abutting the guide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021676993.1U CN213332245U (en) | 2020-08-12 | 2020-08-12 | Chain guide device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021676993.1U CN213332245U (en) | 2020-08-12 | 2020-08-12 | Chain guide device and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213332245U true CN213332245U (en) | 2021-06-01 |
Family
ID=76096249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021676993.1U Active CN213332245U (en) | 2020-08-12 | 2020-08-12 | Chain guide device and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213332245U (en) |
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2020
- 2020-08-12 CN CN202021676993.1U patent/CN213332245U/en active Active
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