CN209955659U

CN209955659U - Waterproof structure for hub ratchet end

Info

Publication number: CN209955659U
Application number: CN201920472727.8U
Authority: CN
Inventors: 陈世伟
Original assignee: Novatec Traffic Equipment Shenzhen Co ltd
Current assignee: Novatec Traffic Equipment Shenzhen Co ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-01-17
Anticipated expiration: 2029-04-09

Abstract

A waterproof construction for hub ratchet end, the utility model relates to the bicycle hub technical field, wherein the central axis is movably sleeved with the hub body, the central axis is movably sleeved with the ratchet group, the left end of the ratchet group is inserted and fixed in the hub body, the ratchet group is movably sleeved with the sleeve, the sleeve is engaged with the ratchet group through the pawl, the left end of the sleeve is movably inserted and arranged in the hub body, and a sealing ring is movably clamped between the sleeve and the hub body; a groove is formed in the inner side wall of the left end of the sleeve, an oil seal ring is movably embedded in the groove, and the inner side wall of the oil seal ring movably abuts against the outer side wall of the ratchet group; a groove is formed in the inner side wall of a sleeve sleeved on the ratchet wheel set, and an oil seal ring is arranged in the groove and can prevent accumulated water from permeating between the ratchet wheel set and the sleeve.

Description

Waterproof structure for hub ratchet end

Technical Field

The utility model relates to a bicycle hub technical field, concretely relates to a waterproof construction for hub ratchet end.

Background

The bicycle hub is a structure which is sleeved on a bicycle wheel shaft and is connected with a wheel rim through a spoke, and the bicycle hub is usually matched with a ratchet wheel group to realize the driving of the bicycle.

The bicycle is after riding for a long time, can produce wearing and tearing between the flower-drum body and the ratchet group, if use the bicycle under the stagnant blood weather this moment, the rainwater can be collected the ratchet end at the flower-drum body to inside the infiltration ratchet group, thereby make ratchet group structure rusted, finally influence the normal use of bicycle, now, need a novel waterproof construction of flower-drum body ratchet end, so that solve above problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a simple structure, reasonable in design, convenient to use's a waterproof construction for flower-drum ratchet end, it is provided with the recess on the telescopic inside wall of ratchet group is established to the cover, and has set up the oil blanket circle in the recess, can block between ponding infiltration ratchet group and the sleeve.

In order to achieve the above object, the utility model adopts the following technical scheme: the novel flower-drum type washing machine comprises a central shaft, a flower-drum body, a ratchet group and a sleeve, wherein the central shaft is movably sleeved with the flower-drum body, the left end of the flower-drum body is rotatably arranged on the central shaft through a left bearing, the central shaft is movably sleeved with the ratchet group, the ratchet group is arranged on the right side of the flower-drum body, the left end of the ratchet group is inserted and fixed in the flower-drum body, the right end of the ratchet group is fixedly sleeved with a bearing sleeve bowl, the bearing sleeve bowl is rotatably arranged on the central shaft through a right bearing, the ratchet group is movably sleeved with the sleeve, the sleeve is meshed with the ratchet group through a pawl, the left end of the sleeve is rotatably arranged through a ball and the ratchet group, the middle part of the sleeve is rotatably arranged through the ball and the bearing sleeve bowl, the left end of the sleeve is movably inserted in; a groove is formed in the inner side wall of the left end of the sleeve, an oil seal ring is movably embedded in the groove, and the inner side wall of the oil seal ring movably abuts against the outer side wall of the ratchet group; the left end cover of center pin is established and is fixed with left closing cap, and the right-hand member activity of left closing cap inlays and establishes inside the left end of the cydariform body, and the right-hand member cover of center pin is established and is fixed with right closing cap, and the left end activity of right closing cap inlays and establishes inside telescopic right-hand member, and the fixed end oil blanket that is provided with on the inside wall of right closing cap, the lateral wall activity of end oil blanket is supported and is established on telescopic inside wall.

Furthermore, a left supporting cylinder is sleeved at the left end of the central shaft, a left sealing cover is sleeved on the left supporting cylinder, a left single-face embossing nut is fixedly screwed on the central shaft, a left supporting collet is arranged between the left single-face embossing nut and the left bearing, and the right end of the left supporting cylinder abuts against the left bearing.

Furthermore, a right supporting cylinder is sleeved at the right end of the central shaft, a right sealing cover is sleeved on the right supporting cylinder, a right single-sided embossing nut is screwed and fixed on the central shaft, a right supporting collet is arranged between the right single-sided embossing nut and a right bearing, and the left end of the right supporting cylinder abuts against the right bearing.

After the structure is adopted, the utility model discloses beneficial effect does: a waterproof construction for flower-drum ratchet end, it is provided with the recess on the telescopic inside wall of cover on the ratchet group is established, and has set up the oil blanket circle in the recess, can block ponding infiltration ratchet group and sleeve between, the utility model has the advantages of simple structure, it is reasonable to set up, 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 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 structural diagram of the present invention.

Fig. 2 is a schematic structural view of the ratchet set of the present invention.

Fig. 3 is a side view of fig. 2.

Fig. 4 is a schematic structural view of the middle sleeve of the present invention.

Fig. 5 is a side view of fig. 4.

Fig. 6 is a schematic structural diagram of the oil seal ring of the present invention.

Fig. 7 is a schematic cross-sectional structure diagram of the oil seal ring of the present invention.

Fig. 8 is an enlarged view of a portion a in fig. 1.

Fig. 9 is an enlarged view of a portion B in fig. 4.

Description of reference numerals:

the bearing comprises a central shaft 1, a hub body 2, a left bearing 3, a ratchet wheel group 4, a bearing sleeve bowl 5, a right bearing 6, a sleeve 7, a sealing ring 8, a groove 9, an oil seal ring 10, a left sealing cover 11, a right sealing cover 12, an end oil seal 13, a left supporting cylinder 14, a left single-sided embossing nut 15, a right supporting cylinder 16 and a right single-sided embossing nut 17.

Detailed Description

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

Referring to fig. 1 to 9, the present embodiment includes a central shaft 1, a hub body 2, a ratchet set 4, and a sleeve 7, wherein the central shaft 1 is movably sleeved with the hub body 2, a left end of the hub body 2 is rotatably disposed on the central shaft 1 through a left bearing 3, the central shaft 1 is movably sleeved with the ratchet set 4, the ratchet set 4 is disposed at a right side of the hub body 2, a left end of the ratchet set 4 is inserted and clamped in the hub body 2, a right end of the ratchet set 4 is sleeved and clamped with a bearing set bowl 5, the bearing set bowl 5 is rotatably disposed on the central shaft 1 through a right bearing 6, the ratchet set 4 is movably sleeved with the sleeve 7, the sleeve 7 is engaged with the ratchet set 4 through a pawl, a left end of the sleeve 7 is rotatably disposed with the ratchet set 4 through a ball, a middle portion of the sleeve 7 is rotatably disposed with the bearing set bowl 5 through a ball, a left end of the sleeve 7 is movably inserted in the hub body 2, a sealing ring 8 is movably clamped between the sleeve 7 and the hub body 2; a groove 9 is formed in the inner side wall of the left end of the sleeve 7, an oil seal ring 10 is movably embedded in the groove 9, and the inner side wall of the oil seal ring 10 movably abuts against the outer side wall of the ratchet wheel group 4; the left end cover of center pin 1 establishes and is fixed with left closing cap 11, and the right-hand member activity of left closing cap 11 is inlayed and is established inside the left end of the cydariform drum body 2, and the right-hand member cover of center pin 1 is established and is fixed with right closing cap 12, and the left end activity of right closing cap 12 is inlayed and is established inside the right-hand member of sleeve 7, and sticky fixed has end oil blanket 13 on the inside wall of right closing cap 12, and the activity of the lateral wall of end oil blanket 13 is supported and is established on the inside wall of sleeve 7.

Furthermore, a left supporting cylinder 14 is sleeved at the left end of the central shaft 1, a left sealing cover 11 is sleeved on the left supporting cylinder 14, a left single-sided embossing nut 15 is screwed and fixed on the central shaft 1, the left supporting cylinder 14 is clamped between the left single-sided embossing nut 15 and the left bearing 3, and the right end of the left supporting cylinder 14 abuts against the left bearing 3.

Furthermore, a right supporting cylinder 16 is sleeved at the right end of the central shaft 1, a right sealing cover 12 is sleeved on the right supporting cylinder 16, a right single-sided embossing nut 17 is screwed and fixed on the central shaft 1, the right supporting cylinder 16 is clamped between the right single-sided embossing nut 17 and the right bearing 6, and the left end of the right supporting cylinder 16 abuts against the right bearing 6.

When the working of the specific embodiment mode, when the sleeve 7 and the ratchet group 4 generate relative rotation movement, the oil seal ring 10 slides and rotates between the sleeve 7 and the ratchet group 4, even if accumulated water exists in the gap of the joint part of the hub body 2, the sleeve 7 and the ratchet group 4, the accumulated water can be blocked by the oil seal ring 10, so that the accumulated water cannot enter between the sleeve 7 and the ratchet group 4.

After adopting above-mentioned structure, this embodiment has the advantage: a groove is formed in the inner side wall of a sleeve sleeved on the ratchet wheel set, and an oil seal ring is arranged in the groove and can prevent accumulated water from permeating between the ratchet wheel set and the sleeve.

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 waterproof structure for a hub ratchet end comprises a central shaft (1), a hub body (2), a ratchet group (4) and a sleeve (7), wherein the hub body (2) is movably sleeved on the central shaft (1), the left end of the hub body (2) is rotatably arranged on the central shaft (1) through a left bearing (3), the ratchet group (4) is movably sleeved on the central shaft (1), the ratchet group (4) is arranged on the right side of the hub body (2), the left end of the ratchet group (4) is inserted and fixed in the hub body (2), a bearing sleeve bowl (5) is fixedly sleeved at the right end of the ratchet group (4), the bearing sleeve bowl (5) is rotatably arranged on the central shaft (1) through a right bearing (6), the sleeve (7) is movably sleeved on the ratchet group (4), the sleeve (7) is meshed with the ratchet group (4) through a pawl, the left end of the sleeve (7) is rotatably arranged with the ratchet group (4) through balls, the middle part of sleeve (7) is passed through the ball and is established the setting soon with bearing housing bowl (5), and the left end activity of sleeve (7) is inserted and is established in the flower-drum body (2), and the activity is pressed from both sides between sleeve (7) and the flower-drum body (2) and is equipped with sealing washer (8), its characterized in that: a groove (9) is formed in the inner side wall of the left end of the sleeve (7), an oil seal ring (10) is movably embedded in the groove (9), and the inner side wall of the oil seal ring (10) movably abuts against the outer side wall of the ratchet wheel set (4); the left end cover of center pin (1) is established and is fixed with left closing cap (11), the right-hand member activity of left closing cap (11) is inlayed and is established inside the left end of the cydariform drum body (2), the right-hand member cover of center pin (1) is established and is fixed with right closing cap (12), the left end activity of right closing cap (12) is inlayed and is established inside the right-hand member of sleeve (7), fixed end oil blanket (13) that is provided with on the inside wall of right closing cap (12), the lateral wall activity of end oil blanket (13) is supported and is established on the inside wall of sleeve (7).

2. A waterproofing structure for a hub ratchet end according to claim 1 wherein: the left end of the central shaft (1) is sleeved with a left supporting cylinder (14), a left sealing cover (11) is sleeved on the left supporting cylinder (14), a left single-face embossing nut (15) is fixedly screwed on the central shaft (1), the left supporting cylinder (14) is clamped between the left single-face embossing nut (15) and the left bearing (3), and the right end of the left supporting cylinder (14) abuts against the left bearing (3).

3. A waterproofing structure for a hub ratchet end according to claim 1 wherein: the right end of the central shaft (1) is sleeved with a right supporting cylinder (16), a right sealing cover (12) is sleeved on the right supporting cylinder (16), a right single-face embossing nut (17) is fixedly screwed on the central shaft (1), the right supporting cylinder (16) is clamped between the right single-face embossing nut (17) and a right bearing (6), and the left end of the right supporting cylinder (16) abuts against the right bearing (6).