CN211414948U

CN211414948U - Ratchet sleeve structure

Info

Publication number: CN211414948U
Application number: CN201922163916.XU
Authority: CN
Inventors: 陈世伟
Original assignee: Novatec Traffic Equipment Shenzhen Co ltd
Current assignee: Novatec Traffic Equipment Shenzhen Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-09-04
Anticipated expiration: 2029-12-05

Abstract

The utility model provides a telescopic structure of ratchet, the utility model relates to it contains a sleeve pipe in bicycle part technical field, the sleeve pipe, No. two sleeve pipes, ratchet claw, screw and spring, a sheathed tube rear side is connected with No. two sleeve pipes through peyline, a sleeve pipe and No. two sheathed tube outside covers are equipped with the sleeve pipe, telescopic inner ring wall is fixed with the outer anchor ring of peyline, the several slot has been seted up on the outer anchor ring wall of sleeve front side, all be equipped with ratchet claw in every slot, ratchet claw's the outside is equipped with the spring, the outside of spring is equipped with the screw, the screw passes the lock of spring tip in proper order and attaches the fixed part, and behind the ratchet claw, be connected with the screw hole of seting up in the slot, one-way rotation is done with ratchet ring to independent pawl, if take place to need to do the adjustment, when maintenance or change, can do maintenance and change alone, the.

Description

Ratchet sleeve structure

Technical Field

The utility model relates to a bicycle part technical field, concretely relates to telescopic structure of ratchet.

Background

The sleeve of the existing product is 11-speed, no 12-speed sleeve design is provided, and in order to increase the number of fluted discs in limited space and size, the strength of the sleeve is weakened on the same size correspondingly; in addition, in the design of pawl actuation, because of the cost and the convenience in assembly, the current design mostly uses a single spring as the design and positioning mode for controlling the pawl, so that each pawl cannot be independently adjusted and actuated but is restrained and linked, which has adverse effects on the reliability of the product and the smoothness of the operation, and has inconvenient operation and fussy use, and needs to be improved urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a reasonable in design, convenient to use's telescopic structure of ratchet, one-way rotation is done with the ratchet ring to each independent pawl, if take place need do adjustment, maintenance or change when, can do maintenance and change alone, easy operation, it is convenient to use, and the practicality is stronger.

In order to achieve the above object, the utility model adopts the following technical scheme: it contains a sleeve pipe, the sleeve pipe, No. two sleeve pipes, the ratchet claw, screw and spring, a sheathed tube rear side is connected with No. two sleeve pipes through the pellin, a sleeve pipe and No. two sheathed tube outside cover are equipped with the sleeve, telescopic inner ring wall is fixed with the outer anchor ring of pellin, the several slot has been seted up on the outer ring wall of sleeve front side, all be equipped with the ratchet claw in every slot, the outside of ratchet claw is equipped with the spring, the outside of spring is equipped with the screw, the screw passes the lock of spring tip in proper order and attaches the fixed part to and behind the ratchet claw, be connected with the screw hole of seting up in the slot, the sleeve internal fixation of No. two sleeve pipe rear sides have the oil blanket.

After the structure is adopted, the utility model discloses beneficial effect does: a telescopic structure of ratchet, one-way rotation is done with the ratchet ring to each independent pawl, if take place to need to do adjustment, maintenance or change when, can do maintenance and change alone, easy operation, it is convenient to use, the practicality is stronger, the utility model has the advantages of set up rationally, the cost of manufacture is low.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view of fig. 1.

Fig. 3 is a front view of fig. 1.

Description of reference numerals:

the device comprises a sleeve 1, a groove 1-1, a screw hole 1-2, a first sleeve 2, a ratchet claw 3, a bearing 4, an oil seal 5, a screw 6, a spring 7, a locking fixing part 7-1 and a second sleeve 8.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1-3, the technical solution adopted by the present embodiment is: the novel bicycle wheel hub comprises a first sleeve 2, a sleeve 1, a second sleeve 8, ratchet claws 3, screws 6 and springs 7, wherein the rear side of the first sleeve 2 is connected with the second sleeve 8 through a bearing 4, the outer sides of the first sleeve 2 and the second sleeve 8 are sleeved with the sleeve 1, the inner ring wall of the sleeve 1 is fixedly riveted with the outer ring surface of the bearing 4, a plurality of grooves 1-1 are formed in the outer ring wall of the front side of the sleeve 1, the ratchet claws 3 are fixed in each groove 1-1 through bolts, the springs 7 are riveted on the outer sides of the ratchet claws 3, the screws 6 are arranged on the outer sides of the springs 7, the screws 6 sequentially penetrate through locking fixing parts 7-1 at the ends of the springs 7, the ratchet claws 3 are connected with screw holes 1-2 formed in the grooves 1-1, and oil seals 5 are fixedly riveted in the sleeve 1 on the rear side of the second sleeve 8.

The working principle of the specific embodiment is as follows: the spring 7 is locked and attached at the screw hole 1-2 individually by matching with the groove 1-1, the elastic side of the spring 7 is arranged towards the outer side of the ratchet claw 3, the screw 6 passes through the locking and attaching fixed part 7-1 of the spring 7 and is arranged and attached on the sleeve 1, when in operation, each independent ratchet claw 3 and the ratchet ring do unidirectional rotation clutch operation and are in unidirectional meshing transmission, if adjustment, maintenance or replacement is needed, the independent maintenance and replacement can be carried out independently, the spring 7 is changed into an independent type, each ratchet claw 3 is matched with the spring 7 and can be independently arranged and adjusted, and the ratchet claws 3 are changed into 6 claws from 4 claws, the claw number is increased, the contact area in the process of meshing is relatively increased, and further the dispersed stress leads the service life of the product to be longer and the operation to be smoother.

After adopting above-mentioned structure, this embodiment beneficial effect does:

1. the spring 7 is changed into an independent type, each ratchet pawl 3 is matched with the spring 7, and the ratchet pawl can be independently installed and adjusted, so that the operation is simple and the use is convenient;

2. the ratchet pawl 3 is changed into 6 pawls from 4 pawls, the number of pawls is increased, the contact area during engagement is relatively increased, and the practicability is higher.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A structure of a ratchet sleeve is characterized in that: the novel bicycle ratchet wheel comprises a first sleeve (2), a sleeve (1), a second sleeve (8), ratchet claws (3), screws (6) and springs (7), wherein the rear side of the first sleeve (2) is connected with the second sleeve (8) through a bearing (4), the sleeves (1) are sleeved outside the first sleeve (2) and the second sleeve (8), the inner ring wall of the sleeve (1) is fixed with the outer ring surface of the bearing (4), a plurality of grooves (1-1) are formed in the outer ring wall of the front side of the sleeve (1), each groove (1-1) is internally provided with a ratchet claw (3), the outer side of each ratchet claw (3) is provided with a spring (7), the outer side of each spring (7) is provided with a screw (6), the screws (6) sequentially penetrate through locking fixing parts (7-1) at the end parts of the springs (7), and the ratchet claws (3) are connected with screw holes (1-2) formed in the grooves (1-1), an oil seal (5) is fixed in the sleeve (1) at the rear side of the second sleeve (8).