CN221049387U - Two-section ratchet structure of bicycle hub - Google Patents
Two-section ratchet structure of bicycle hub Download PDFInfo
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- CN221049387U CN221049387U CN202322603556.7U CN202322603556U CN221049387U CN 221049387 U CN221049387 U CN 221049387U CN 202322603556 U CN202322603556 U CN 202322603556U CN 221049387 U CN221049387 U CN 221049387U
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- ratchet wheel
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- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 6
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a two-section ratchet structure of a bicycle hub, which comprises a hub, wherein a mounting hole is formed in the hub; the ratchet neutrons are arranged in the mounting holes on the hub, the ratchet neutrons are in threaded connection with the hub, and a plurality of groups of pawls are arranged on the periphery side of the ratchet neutrons; the inner side of the gear ring is provided with a pawl clamping groove, and the neutrons in the ratchet wheel are arranged in the pawl clamping groove in the gear ring through the pawl; the ratchet wheel is characterized in that one end of the ratchet wheel is in threaded connection with the gear ring, the ratchet wheel neutron and the ratchet wheel adopt a split two-section structural design, the ratchet wheel neutron and the ratchet wheel are connected through the gear ring, the ratchet wheel is convenient to detach and replace independently, and the ratchet wheel neutron and the ratchet wheel are prepared by adopting different materials.
Description
Technical Field
The utility model belongs to the technical field of bicycle hub ratchets, and particularly relates to a two-section ratchet structure of a bicycle hub.
Background
The hub ratchet structure is a transmission mechanism arranged on the rear wheel of a bicycle, and utilizes a limiting piece to enable a ratchet to be kept in a normally closed state, and a convex column of the ratchet and a propping hole of a damping piece are used for generating displacement relation, namely, when a pedal of the bicycle is trampled forward, a gear disc drives a sleeve to rotate and drives a hub to rotate along with the sleeve, so that the wheel can rotate forward, and when the pedal of the bicycle is trampled backward, the sleeve and the hub idle to prevent the wheel from rotating reversely.
In the existing bicycle hub ratchet structure, a ratchet neutron and a ratchet are integrated, as shown in fig. 6, a pawl and the ratchet on the ratchet neutron are integrated, and the ratchet neutron and the ratchet need to bear rotating force, so that the ratchet neutron and the ratchet are easy to damage, but the ratchet neutron cannot be replaced independently, so that maintenance cost of the bicycle hub ratchet structure is increased.
Disclosure of utility model
The utility model aims to provide a two-section ratchet wheel structure of a bicycle hub, which solves the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a two-section ratchet structure of a bicycle hub comprises
The flower drum is provided with a mounting hole;
The ratchet neutrons are arranged in the mounting holes on the hub, the ratchet neutrons are in threaded connection with the hub, and a plurality of groups of pawls are arranged on the periphery side of the ratchet neutrons;
the inner side of the gear ring is provided with a pawl clamping groove, and the neutrons in the ratchet wheel are arranged in the pawl clamping groove in the gear ring through the pawl;
And one end of the ratchet wheel is in threaded connection with the gear ring.
Preferably, a first end cover is arranged at one end, far away from neutrons in the ratchet wheel, of the hub.
Preferably, a second end cover is arranged at one end, far away from the gear ring, of the ratchet wheel.
Preferably, the hub, the ratchet wheel neutron, the gear ring, the ratchet wheel, the first end cover and the second end cover are connected through a central shaft.
Preferably, a first internal thread is arranged on the inner side of the mounting hole, a first external thread is arranged on the outer peripheral side of one end, far away from the pawl, of the ratchet neutron, the first internal thread is matched with the first external thread, and the ratchet neutron is mounted in the mounting hole on the hub through the first internal thread and the first external thread.
Preferably, a second internal thread is arranged on the inner side of the gear ring, far away from the inner circumferential side of one section of the pawl clamping groove, a second external thread is arranged on the ratchet wheel, the second internal thread is matched with the second external thread, and the ratchet wheel is in threaded connection with the gear ring through the second internal thread and the second external thread.
Preferably, a special-shaped hole is formed in the central shaft of the ratchet neutron.
Preferably, the ratchet wheel is made of steel or aluminum alloy.
Compared with the prior art, the utility model has the beneficial effects that:
1. According to the utility model, the ratchet neutrons and the ratchet adopt a split two-section structure design, the ratchet neutrons and the ratchet are connected through the gear ring, the ratchet is convenient to be detached and replaced independently, and the ratchet neutrons and the ratchet are prepared by adopting different materials, and as the bearing capacities of the ratchet neutrons and the ratchet are different, the ratchet neutrons and the ratchet prepared by different materials can be freely combined according to requirements, and the selectivity is high;
2. According to the utility model, the whole hub is connected through the center shaft, the pawl on the ratchet wheel neutron is arranged in the inner depth of the bicycle hub, so that foreign matters are prevented from entering the gear ring from the hub or the ratchet wheel, the waterproof and dustproof performances of the whole bicycle hub are improved, and the normal operation of the pawl on the ratchet wheel neutron and the gear ring is ensured.
Drawings
FIG. 1 is a schematic view of an exploded construction of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic perspective view of a ratchet neutron of the present utility model;
FIG. 4 is a schematic perspective view of a ring gear of the present utility model;
FIG. 5 is a schematic perspective view of a ratchet according to the present utility model;
Fig. 6 is a schematic diagram of a ratchet structure of a conventional bicycle hub.
In the figure: 1. a flower drum; 101. a mounting hole; 102. a first internal thread; 2. a ratchet neutron; 201. a pawl; 202. a first external thread; 203. a special-shaped hole; 3. a gear ring; 301. a pawl clamping groove; 302. a second internal thread; 4. a ratchet wheel; 401. a second external thread; 5. a first end cap; 6. a second end cap; 7. a central shaft.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to FIGS. 1-5, the present utility model provides a two-segment ratchet structure for a bicycle hub, comprising
The flower-drum 1, the flower-drum 1 is provided with a mounting hole 101, and one end of the flower-drum 1 far away from the ratchet neutron 2 is provided with a first end cover 5;
Ratchet neutron 2, ratchet neutron 2 is installed in mounting hole 101 on flower-drum 1, ratchet neutron 2 and flower-drum 1 threaded connection, the inboard of mounting hole 101 is provided with first internal thread 102, the one end periphery side that keeps away from pawl 201 on ratchet neutron 2 is provided with first external screw thread 202, first internal thread 102 and first external screw thread 202 looks adaptation, ratchet neutron 2 is installed in mounting hole 101 on flower-drum 1 through first internal screw thread 102 and first external screw thread 202 screw thread, the periphery side of ratchet neutron 2 is provided with a plurality of groups of pawl 201, special-shaped hole 203 has been seted up to ratchet neutron 2's center pin department, the easy dismounting ratchet neutron 2;
The gear ring 3, the inside of the gear ring 3 is provided with a pawl clamping groove 301, and the ratchet neutron 2 is arranged in the pawl clamping groove 301 in the gear ring 3 through a pawl 201;
The ratchet 4, the ratchet 4 is the ratchet that adopts steel material or aluminum alloy material preparation, the one end and the ring gear 3 threaded connection of ratchet 4, the inboard of ring gear 3 is kept away from the one section inner peripheral side of pawl draw-in groove 301 and is provided with second internal thread 302, be provided with second external screw thread 401 on the ratchet 4, second internal screw thread 302 and second external screw thread 401 looks adaptation, ratchet 4 passes through second internal screw thread 302 and second external screw thread 401 and ring gear 3 threaded connection, the one end of keeping away from ring gear 3 on the ratchet 4 is provided with second end cover 6.
According to the utility model, the ratchet neutrons 2 and the ratchet 4 are of a split two-section structure design, the ratchet neutrons 2 and the ratchet 4 are connected through the gear ring 3, the ratchet 4 is convenient to be detached and replaced independently, and the ratchet neutrons 2 and the ratchet 4 are prepared by adopting different materials, and as the ratchet neutrons 2 and the ratchet 4 are different in bearing capacity, the ratchet neutrons 2 and the ratchet 4 prepared by different materials can be freely combined according to requirements, and the selectivity is high.
In this embodiment, as shown in fig. 2, a first end cover 5 is disposed at one end of the hub 1 far from the ratchet neutron 2, a second end cover 6 is disposed at one end of the ratchet 4 far from the gear ring 3, and the hub 1, the ratchet neutron 2, the gear ring 3, the ratchet 4, the first end cover 5 and the second end cover 6 are connected by a central shaft 7;
According to the utility model, the whole hub is connected through the center shaft 7, the pawl 201 on the ratchet neutron 2 is arranged in the inner depth of the bicycle hub, so that foreign matters are prevented from entering the gear ring 3 from the hub 1 or the ratchet 4, the waterproof and dustproof performances of the whole bicycle hub are further improved, and the normal operation of the pawl 201 on the ratchet neutron 2 and the gear ring 3 is ensured.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A two-section ratchet structure of a bicycle hub is characterized by comprising
The flower-drum (1), a mounting hole (101) is formed in the flower-drum (1);
The ratchet neutron (2) is arranged in the mounting hole (101) on the flower drum (1), the ratchet neutron (2) is in threaded connection with the flower drum (1), and a plurality of groups of pawls (201) are arranged on the outer periphery side of the ratchet neutron (2);
The gear ring (3), the inside of the gear ring (3) is provided with a pawl clamping groove (301), and the ratchet neutrons (2) are arranged in the pawl clamping groove (301) in the gear ring (3) through the pawl (201);
And one end of the ratchet wheel (4) is in threaded connection with the gear ring (3).
2. The two-section ratchet structure of a bicycle hub according to claim 1, wherein: and a first end cover (5) is arranged at one end, far away from the ratchet neutrons (2), of the hub (1).
3. A two-section ratchet structure for a bicycle hub according to claim 2, wherein: and a second end cover (6) is arranged at one end, far away from the gear ring (3), of the ratchet wheel (4).
4. A two-section ratchet structure for a bicycle hub according to claim 3, wherein: the hub (1), the ratchet neutrons (2), the gear ring (3), the ratchet (4), the first end cover (5) and the second end cover (6) are connected through a central shaft (7).
5. The two-section ratchet structure of a bicycle hub according to claim 1, wherein: the inside of mounting hole (101) is provided with first internal thread (102), keep away from on ratchet neutron (2) one end periphery side of pawl (201) is provided with first external screw thread (202), first internal thread (102) with first external screw thread (202) looks adaptation, ratchet neutron (2) are in through first internal screw thread (102) with first external screw thread (202) screw thread is installed in mounting hole (101) on flower-drum (1).
6. The two-section ratchet structure of a bicycle hub according to claim 1, wherein: the inner side of the gear ring (3) is far away from the inner circumference side of one section of the pawl clamping groove (301) and is provided with a second internal thread (302), the ratchet wheel (4) is provided with a second external thread (401), the second internal thread (302) is matched with the second external thread (401), and the ratchet wheel (4) is in threaded connection with the gear ring (3) through the second internal thread (302) and the second external thread (401).
7. The two-section ratchet structure of a bicycle hub according to claim 1, wherein: a special-shaped hole (203) is formed in the central shaft of the ratchet neutron (2).
8. The two-section ratchet structure of a bicycle hub according to claim 1, wherein: the ratchet wheel (4) is made of steel or aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322603556.7U CN221049387U (en) | 2023-09-25 | 2023-09-25 | Two-section ratchet structure of bicycle hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322603556.7U CN221049387U (en) | 2023-09-25 | 2023-09-25 | Two-section ratchet structure of bicycle hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221049387U true CN221049387U (en) | 2024-05-31 |
Family
ID=91201958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322603556.7U Active CN221049387U (en) | 2023-09-25 | 2023-09-25 | Two-section ratchet structure of bicycle hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221049387U (en) |
-
2023
- 2023-09-25 CN CN202322603556.7U patent/CN221049387U/en active Active
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| GR01 | Patent grant |