CN207580075U

CN207580075U - Bicycle fairleader

Info

Publication number: CN207580075U
Application number: CN201720535352.6U
Authority: CN
Inventors: 张磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-05-16
Filing date: 2017-05-16
Publication date: 2018-07-06
Anticipated expiration: 2027-05-16

Abstract

The utility model discloses a kind of bicycle fairleaders, bicycle includes middle pipe, left back lower fork, right Chain stay, crank fluted disc, chain and to prevent chain from taking off the fairleader of chain, the front end of left back lower fork and the front end of right Chain stay are respectively fixedly connected on the lower part of middle pipe, a left back claw is fixedly connected on the rear end of left back lower fork, a right back claw is fixedly connected on the rear end of right Chain stay, a Flywheel disc is also pivoted between left back claw and right back claw, crank fluted disc is hubbed on central siphon bottom bracket assembly, and chain is set around between crank fluted disc and Flywheel disc；Fairleader is including there are two guide arm and two guide wheels, the rear side of two guide arms is coaxial to be rotationally connected on right back claw, a guide wheel is respectively connected separately on the front side of two guide arms, two guide wheels also engage connection with chain respectively, when chain drive, the rotation direction of two guide wheels is opposite；Compared to the prior art, which balances the tension of chain well, and stability is good.

Description

Bicycle fairleader

Technical field

The utility model is related to technical field of bicycles, specifically provide a kind of bicycle fairleader.

Background technology

At present, on the non-multi-speed bicycle sold in the market, general seldom installation fairleader or chain tensioner.This master If due to：A) existing fairleader or chain tensioner are poor to the versatility of cycle frame, it is impossible to suitable for all vehicles Type.B) existing fairleader is generally using single leg list Guiding wheel structure, and the tension of the fairleader of single leg list Guiding wheel structure is unstable, easily Occur jumping chain phenomenon, stability is bad.

In view of this, it is special to propose the utility model.

Invention content

In order to overcome drawbacks described above, the utility model provides a kind of bicycle fairleader, balances chain well Tension, stability is good.

The utility model in order to solve its technical problem used by technical solution be：A kind of bicycle fairleader, voluntarily Vehicle includes middle pipe, left back lower fork, right Chain stay, crank fluted disc, chain and to prevent the chain from taking off the fairleader of chain, In, the front end of the front end of the left back lower fork and the right Chain stay is respectively fixedly connected on the lower part of the middle pipe, described A left back claw is fixedly connected on the rear end of left back lower fork, is hooked after being fixedly connected with a right side on the rear end of the right Chain stay Pawl, and a Flywheel disc is also pivoted between the left back claw and right back claw, it is logical that the crank fluted disc is hubbed at central siphon five On component, the chain is set around between the crank fluted disc and the Flywheel disc；The fairleader include there are two guide arm and Two guide wheels, the rear side of two guide arms is coaxial to be rotationally connected on the right back claw, the front side of two guide arms On be respectively connected separately with a guide wheel, two guide wheels, which further average, other engages connection with the chain, and when the chain During transmission, the rotation direction of two guide wheels is opposite.

As further improvement of the utility model, on the basis of the direction of riding of bicycle, on the right back claw Be located by connecting first connecting shaft extended in left-right direction, and the equal turning set of rear side of two guide arms is loaded on described first In connecting shaft；

In addition, each second connection extended in left-right direction that is located by connecting respectively on the front side of each guide arm Axis, two corresponding movable sets of guide wheel are in two second connecting shafts.

As further improvement of the utility model, being removably located by connecting on the right back claw has a connection Piece, and first connecting shaft is located by connecting in the connection sheet.

As further improvement of the utility model, the right back claw is defined as backwards to the one side of the Flywheel disc The lateral surface of the right back claw, the connection sheet are removably located by connecting on the lateral surface of the right back claw.

As further improvement of the utility model, when rotating two guide arms, two guide arms keep energy The elastic reset power enough resetted.

As further improvement of the utility model, the first guide arm will be defined as positioned at the one of the inside guide arm, by position Another guide arm in outside is defined as the second guide arm；

One first stop block is connected on the rear side of first guide arm, and is integrally connected on the right back claw One second stop block is connected to, and when first guide arm is relative to the right back claw rotation, second stop block can stop It is blocked in first stop block.

The beneficial effects of the utility model are：Compared to the prior art, fairleader described in the utility model has following Advantage：1. by setting two guide wheels so that underlying chain is in a non-rectilinear state, particularly when described During chain drive, two guide wheels are rotated in a reverse direction, in this way will be to being placed through chain among them Item applies the pulling force of two different directions, and then the drawbacks of balance the tension of chain well, avoid de- chain, stability It is good.2. the fairleader is easy for installation, most of vehicle in the market is applicable to, applicability is good.3. the fairleader causes Chain, the left and right relative position range of Flywheel disc are bigger, do not need to adjust two guide wheels and Flywheel disc in a plane, It is easily assembled.

Description of the drawings

Fig. 1 is that fairleader described in the utility model is installed on bicycle and the partial structurtes under the first visual angle are shown It is intended to；

Fig. 2 is the enlarged structure schematic diagram in A portions shown in Fig. 1；

Fig. 3 is that fairleader described in the utility model is installed on bicycle and the partial structurtes under the second visual angle are shown It is intended to.

With reference to attached drawing, make the following instructions：

1 --- middle pipe 2 --- left back lower fork

3 --- right Chain stay 4 --- crank fluted discs

5 --- chain 6 --- fairleaders

7 --- right back claw 8 --- Flywheel discs

60 --- guide arm 61 --- guide wheels

62 --- connection sheet

Specific embodiment

The preferred embodiment of the utility model is described in detail referring to figure.

Embodiment 1：

Explanation：Following "front", "rear", "left", "right" are defined on the basis of the direction of riding of bicycle.

Refering to shown in attached drawing 1 and 3, fairleader respectively described in the utility model is installed on bicycle and in two kind Partial structural diagram under different visual angles.Bicycle includes middle pipe 1, left back lower fork 2, right Chain stay 3, crank fluted disc 4, chain 5 and to prevent the chain 5 from taking off the fairleader 6 of chain, wherein, before the front end of the left back lower fork 2 and the right Chain stay 3 End is respectively fixedly connected on the lower part of the middle pipe 1, and a left back claw is fixedly connected on the rear end of the left back lower fork 2, A right back claw 7 is fixedly connected on the rear end of the right Chain stay 3, and pivot is gone back between the left back claw and right back claw 7 Equipped with a Flywheel disc 8, the crank fluted disc 4 is hubbed on central siphon bottom bracket assembly, and the chain 5 is set around the crank fluted disc Between 4 and the Flywheel disc 8；Particularly, refering to shown in attached drawing 2, the fairleader 6 is including there are two guide arm 60 and two guide wheels 61, the rear side of two guide arms 60 is coaxial to be rotationally connected on the right back claw 7, on the front side of two guide arms 60 Respectively it is connected separately with a guide wheel 61, two guide wheels 61, which further average, other engages connection with the chain 5, and when the chain When item 5 is driven, the rotation direction of two guide wheels 61 is opposite.Compared to the prior art, fairleader described in the utility model It has the following advantages：1. by setting two guide wheels so that underlying chain is in a non-rectilinear state, especially It is when the chain drive, two guide wheels are rotated in a reverse direction, in this way will be to being placed through them Intermediate chain applies the pulling force of two different directions, and then the drawbacks of balance the tension of chain well, avoid de- chain, Stability is good.2. the fairleader is easy for installation, most of vehicle in the market is applicable to, applicability is good.3. the guide chain Device so that the left and right relative position range of chain, Flywheel disc is bigger, does not need to adjust two guide wheels and Flywheel disc at one In plane, it is easily assembled.

In the present embodiment, it is preferred that on the basis of the direction of riding of bicycle, the company of positioning on the right back claw 7 It is connected to first connecting shaft extended in left-right direction, i.e. the first connecting shaft is lateral arrangement, the rear side of two guide arms 60 Equal turning set loaded on the rear side in first connecting shaft, that is, realizing two guide arms it is coaxial be rotationally connected with the right side On back claw；

In addition, each second company extended in left-right direction that is located by connecting respectively on the front side of each guide arm 60 Spindle, two 61 corresponding movable sets of guide wheel are in two second connecting shafts, i.e., each equal energy of the guide wheel Enough in progress transverse shifting (moving left and right) in second connecting shaft, so when carrying out each component assembling, without being led Wheel matches adjusting with the straightness between chain.

It is further preferred that being removably located by connecting on the right back claw 7 has a connecting piece 62, and described first Connecting shaft is located by connecting in the connection sheet 62, so that fairleader integral installation is convenient, is applicable in the market big Part vehicle, applicability are good.

It is further preferred that one side of the right back claw 7 backwards to the Flywheel disc 8 is defined as the right back claw 7 lateral surface, the connection sheet 62 are removably located by connecting on the lateral surface of the right back claw 7, i.e., are led described in two The rear side of arm 60 is placed in outside the lateral surface of the right back claw 7；In addition, two guide arm length scales in the front-back direction are not Unanimously.

In the present embodiment, it is preferred that when rotating two guide arms 60, two guide arms 60 remain able to multiple The elastic reset power of position, i.e., each guide arm is respectively socketed on by a torsional spring in first connecting shaft, is routine techniques Means, it is not described here in detail.

Preferably, the first guide arm will be defined as positioned at the one of the inside guide arm 60, described will be led positioned at the another of outside Arm 60 is defined as the second guide arm；One first stop block is connected on the rear side of first guide arm, and behind the right side It hooks and is connected with one second stop block on pawl 7, and when first guide arm is rotated relative to the right back claw 7, described the Two stop blocks can backstop in first stop block, and then can avoid first guide arm rotate adjust when because excessively rotate And collide the right Chain stay 3.

The above is only the preferred embodiment of the utility model, but is not intended to limit the utility model, and should refer to Go out, it for those skilled in the art, can be under the premise of the utility model technical principle is not departed from Several improvement and modification are made, these improvements and modifications also should be regarded as within the protection scope of the present utility model.

Claims

1. a kind of bicycle fairleader, bicycle include middle pipe (1), left back lower fork (2), right Chain stay (3), crank fluted disc (4), Chain (5) and to prevent the chain (5) from taking off the fairleader (6) of chain, wherein, the front end of the left back lower fork (2) and described The front end of right Chain stay (3) is respectively fixedly connected on the lower part of the middle pipe (1), is consolidated on the rear end of the left back lower fork (2) Surely a left back claw is connected with, a right back claw (7) is fixedly connected on the rear end of the right Chain stay (3), and described left back It hooks and is also pivoted with a Flywheel disc (8) between pawl and right back claw (7), the crank fluted disc (4) is hubbed at central siphon bottom bracket assembly On, the chain (5) is set around between the crank fluted disc (4) and the Flywheel disc (8)；It is characterized in that：The fairleader (6) including there are two guide arm (60) and two guide wheels (61), the rear sides of two guide arms (60) it is coaxial be rotationally connected with institute It states on right back claw (7), a guide wheel (61) is respectively connected separately on the front side of two guide arms (60), is led described in two Wheel (61) further average it is other connection is engaged with the chain (5), and when the chain (5) is driven, two guide wheels (61) Rotation direction is opposite.

2. bicycle fairleader according to claim 1, it is characterised in that：On the basis of the direction of riding of bicycle, Be located by connecting first connecting shaft extended in left-right direction on the right back claw (7), after two guide arms (60) The equal turning set in side is loaded in first connecting shaft；

In addition, each second connection extended in left-right direction that is located by connecting respectively on the front side of each guide arm (60) Axis, two corresponding movable sets of the guide wheel (61) are in two second connecting shafts.

3. bicycle fairleader according to claim 2, it is characterised in that：On the right back claw (7) removably Being located by connecting has a connecting piece (62), and first connecting shaft is located by connecting in the connection sheet (62).

4. bicycle fairleader according to claim 3, it is characterised in that：The right back claw (7) is flown backwards to described The one side of wheel disc (8) is defined as the lateral surface of the right back claw (7), the connection sheet (62) be removably located by connecting in On the lateral surface of the right back claw (7).

5. bicycle fairleader according to claim 2, it is characterised in that：When rotating two guide arm (60), two A guide arm (60) remains able to the elastic reset power resetted.

6. bicycle fairleader according to claim 2, it is characterised in that：It will be fixed positioned at the one of the inside guide arm (60) Justice is the first guide arm, will be defined as the second guide arm positioned at another guide arm (60) in outside；

One first stop block is connected on the rear side of first guide arm, and is integrally connected on the right back claw (7) One second stop block is connected to, and when first guide arm is relative to right back claw (7) rotation, second stop block can Backstop is in first stop block.