CN204871455U

CN204871455U - Chain device is prevented falling by bicycle

Info

Publication number: CN204871455U
Application number: CN201520244354.0U
Authority: CN
Inventors: 周蕤
Original assignee: Hunan Engineering Polytechnic
Current assignee: Hunan Engineering Polytechnic
Priority date: 2015-04-22
Filing date: 2015-04-22
Publication date: 2015-12-16
Anticipated expiration: 2025-04-22

Abstract

The utility model discloses a chain device is prevented falling by bicycle, chain device is prevented falling by bicycle contain a grade support and a backstop support before one, the backstop support on be equipped with a pair of parallel arrangement's limit baffle. The utility model discloses a chain device is prevented falling by bicycle's advantage is: during the use, the user can pass the chain of bicycle between the limit baffle to make spacing column casing support the chain. When chain when activity, can effectively restrict the horizontal hunting of chain, prevent effectively that the chain accident from deviating from, improved the reliability of bicycle. In addition, the relative angle of backstop support and preceding shelves support was adjusted in shelves arc groove and backstop arc groove before the user can utilize, and it is convenient to adjust, and the flexibility is good, and the practicality is strong.

Description

Bicycle chain falling prevention device

Technical Field

The utility model relates to a educate the device, more exactly, is a bicycle prevents falling chain device.

Background

The chain of the existing bicycle is usually fixed between the fluted disc and the crankshaft, and when the bicycle moves at a high speed, the chain is easy to separate from the fluted disc once being loosened, so that the reliability of the bicycle is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the technical problem that prior art exists to a chain device is prevented falling by bicycle is provided.

The above technical problem of the present invention can be solved by the following technical solutions:

a bicycle chain-falling prevention device comprises a front gear support and a rear gear support, wherein a pair of parallel limiting baffle plates are arranged on the rear gear support, the front gear support comprises a front gear flange and an annular front gear ring, a front gear arc groove array consisting of penetrating front gear arc grooves is circumferentially arranged on the front gear ring, a pair of parallel adjusting notches are formed in the head of the rear gear support, an annular rear gear ring is arranged at the bottom of the rear gear support, a rear gear arc groove array consisting of penetrating rear gear arc grooves is arranged on the rear gear ring, the front gear arc grooves and the rear gear arc grooves are respectively connected through a locking screw, the limiting baffle plate comprises a sheet limiting main body, a connecting through hole array consisting of connecting through holes is arranged at the upper edge of the limiting main body, the connecting through holes are respectively provided with a detachable hollow limiting column barrel, and a limiting screw respectively penetrates through the connecting through holes, the limiting column barrel and the adjusting notch.

As an embodiment of the present invention, the limiting body is provided with a heat dissipating notch array formed by heat dissipating notches.

As the preferred embodiment of the utility model, the limiting column casing is integrally formed by nylon.

The utility model discloses a bicycle prevents falling chain device's advantage is: during the use, the user can pass the chain of bicycle between the limit baffle to make spacing column casing support the chain. When the chain moves, the left-right swinging of the chain can be effectively limited, the chain is effectively prevented from being accidentally separated, and the reliability of the bicycle is improved. In addition, the user can utilize preceding fender arc groove and backstop arc groove to adjust the relative angle of backstop support and preceding fender support, and it is convenient to adjust, and the flexibility is good, and the practicality is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic perspective view of the bicycle chain-dropping prevention device of the present invention;

FIG. 2 is an exploded perspective view of the chain drop prevention device of the bicycle in FIG. 1;

FIG. 3 is an enlarged detail view of area A of the bicycle chain drop prevention device of FIG. 2;

FIG. 4 is a further exploded perspective view of the chain drop prevention device of the bicycle in FIG. 2;

FIG. 5 is an enlarged detail view of a region B of the bicycle chain drop prevention device of FIG. 4;

wherein,

1. bicycle chain drop prevention devices; 2. a front gear bracket; 21. a front rail flange; 22. a front gear ring; 23. a front arc groove; 3. a rear fender bracket; 31. adjusting the notch; 32. a rear retaining ring; 33. a rear arc-blocking groove; 4. a limit baffle; 40. a limiting main body; 41. a connecting through hole; 42. a heat dissipation notch; 5. locking screws; 6. limiting the column casing; 7. and a limiting screw.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

As shown in fig. 1 to 5, the bicycle chain-falling prevention device 1 of the present invention comprises a front bracket 2 and a rear bracket 3, the rear bracket 3 is provided with a pair of parallel limit baffles 4, the front bracket 2 comprises a front flange 21 and an annular front ring 22, the front ring 22 is circumferentially provided with a front arc groove array formed by penetrating front arc grooves 23, the rear bracket 3 is provided at the head thereof with a pair of parallel adjustment notches 31, the rear bracket 3 is provided at the bottom thereof with an annular rear ring 32, the rear ring 32 is provided with a rear arc groove array formed by penetrating rear arc grooves 33, the front arc grooves 23 and the rear arc grooves 33 are respectively connected by a locking screw 5, the limit baffles 4 comprise a sheet-shaped limit body 40, the upper edge of the limit body 40 is provided with a connection through hole array formed by connection through holes 41, a detachable hollow limiting column casing 6 is respectively arranged between the connecting through holes 41, and a limiting screw 7 respectively penetrates through the connecting through holes 41, the limiting column casing 6 and the adjusting notch 31.

The limiting body 40 is provided with a heat dissipation notch array consisting of heat dissipation notches 42.

The limit column casing 6 is integrally formed by nylon.

In use, as shown in fig. 1 and 2, a user can pass the chain of the bicycle between the limit stops 4 and make the limit cylinder 6 abut against the chain. When the chain moves, the left-right swinging of the chain can be effectively limited, the chain is effectively prevented from being accidentally separated, and the reliability of the bicycle is improved.

In addition, the user can utilize preceding shelves arc groove 23 and backstop arc groove 33 to adjust the relative angle of backstop support 3 and preceding shelves support 2, and it is convenient to adjust, and the flexibility is good, and the practicality is strong.

Without being limited thereto, any changes or substitutions which are not thought of through creative efforts should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The bicycle chain-falling prevention device is characterized in that the bicycle chain-falling prevention device (1) comprises a front gear support (2) and a rear gear support (3), the rear gear support (3) is provided with a pair of limiting baffle plates (4) which are arranged in parallel, the front gear support (2) comprises a front gear flange (21) and an annular front gear ring (22), the circumference of the front gear ring (22) is provided with a front gear arc groove array which is composed of penetrating front gear arc grooves (23), the head of the rear gear support (3) is provided with a pair of adjusting notch openings (31) which are arranged in parallel, the bottom of the rear gear support (3) is provided with an annular rear gear ring (32), the rear gear ring (32) is provided with a rear gear arc groove array which is composed of penetrating rear gear arc grooves (33), the front gear arc grooves (23) and the rear gear arc grooves (33) are respectively connected through a locking screw (5), spacing baffle (4) contain a flaky spacing main part (40), the upper portion edge of spacing main part (40) be equipped with the connect the through-hole array of constituteing by connect the through-hole (41), connect between through-hole (41) and be equipped with a hollow spacing cylinder of detachable (6) respectively, a stop screw (7) run through respectively connect through-hole (41), spacing cylinder (6) and regulation notch (31).

2. The device for preventing chain dropping of bicycle according to claim 1, wherein the limiting body (40) is provided with a heat dissipating notch array consisting of heat dissipating notches (42).

3. The bicycle chain fall prevention device according to claim 2, wherein the limit column (6) is integrally formed of nylon.