CN217835246U

CN217835246U - Long service life's bicycle flower-drum

Info

Publication number: CN217835246U
Application number: CN202221973985.2U
Authority: CN
Inventors: 张维岳
Original assignee: Suzhou Falcon Cycle Parts Co ltd
Current assignee: Suzhou Falcon Cycle Parts Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-11-18
Anticipated expiration: 2032-07-28

Abstract

The utility model discloses a long service life's bicycle flower-drum, it includes drum barrel, connecting axle and column foot, be equipped with the bearing that is used for accepting the connecting axle in the drum barrel, outer lane one side of bearing is fixed with the ratchet, the surface of ratchet is equipped with a plurality of ratchet, a plurality of the equal slope of ratchet sets up, the both ends of connecting axle all are equipped with stop nut, the column foot cup joints the one end at the connecting axle, the column foot is equipped with the connecting cylinder towards one side of drum barrel, the internal surface of connecting cylinder is equipped with a plurality of connecting rod, every all be equipped with the pawl on the connecting rod, the one end of pawl extends to the bottom of ratchet. This long service life's bicycle flower-drum simple structure, the modern design, convenient to use has avoided the pawl to take place because of the unable condition of transmitting power of supporting spring deformation, in addition, has increased the power transmission point, has greatly improved the reliability of power transmission, has thoroughly stopped the bicycle neutral condition of appearing in the in-process of riding.

Description

Long service life's bicycle flower-drum

Technical Field

The utility model belongs to the technical field of bicycle spare part, concretely relates to long service life's bicycle hub.

Background

The bicycle hub plays the effect of connecting spoke and axletree, is more important part on the bicycle, and the average speed of the bicycle of riding directly receives the influence that the hub quality is bad. The whole body looks like a beaten flower drum when standing up, so the name is given. The hub, commonly known as "hub barrel", is the barrel outside the shaft to which the spokes are connected, and is also commonly called as the hub. According to different arrangement modes of the number of the hub, a free 3-free and free 5-free arrangement method is generally adopted, the hub is provided with an iron hub and an aluminum hub, the iron hub is a hub of a bicycle ridden at home, and the aluminum hub is used as a higher-grade hub and is generally used on high-grade bicycle models such as mountain climbing bicycles, performance cars and road vehicles.

In the prior art, when a bicycle runs, a flywheel drives a tower footing to rotate, the tower footing transmits power through a plurality of pawls, and the hub sliding during the pedal stalling is realized. However, when the pedal stops rotating or rotates reversely, the ratchet presses the pawl, so that a spring for supporting the pawl contracts, the spring loses elasticity due to the fact that the fatigue life is prolonged along with the increase of the service time, the pawl cannot be supported and connected with the pawl, the pawl cannot transmit power, and the neutral position phenomenon of pedal idling occurs. Therefore, it is highly desirable to design a bicycle hub with a long service life to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a long service life's bicycle flower-drum to solve the problem that exists among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a long service life's bicycle flower-drum, its includes drum barrel, connecting axle and column foot, be equipped with the bearing that is used for accepting the connecting axle in the drum barrel, outer lane one side of bearing is fixed with the ratchet, the surface of ratchet is equipped with a plurality of ratchet, a plurality of the ratchet all inclines to set up, the both ends of connecting axle all are equipped with limit nut, the column foot cup joints the one end at the connecting axle, the column foot is equipped with the connecting cylinder towards one side of drum barrel, the internal surface of connecting cylinder is equipped with a plurality of connecting rod, every all be equipped with the pawl on the connecting rod, the one end of pawl extends to the bottom of ratchet.

Furthermore, drum disks are integrally arranged on the outer edges of the two ends of the drum barrel, a plurality of connecting holes are formed in the periphery of each drum disk, and a groove is formed in one side of each drum disk.

Further, the central axes of the drum barrel, the connecting shaft and the tower footing are coincident.

Furthermore, the outer ring of the bearing is fixedly connected with the inner diameter of the drum barrel, and the inner ring of the bearing is connected with the connecting shaft key.

Furthermore, a through hole is formed in the center of the tower footing, the diameter of the through hole is larger than that of the connecting shaft, the diameter of the connecting cylinder is larger than that of an addendum circle of the ratchet wheel, and a retainer ring matched with the groove is arranged on one side of the connecting cylinder.

Still further, the surface of column foot is encircleed and is equipped with a plurality of mounting grooves, a plurality of the mounting groove equidistance sets up.

Still further, the ratchet is arranged in the counterclockwise direction, the pawl is arranged in the clockwise direction, and the pawl is connected with the connecting rod through a one-way bearing.

The utility model discloses a technological effect and advantage: this long service life's bicycle flower-drum simple structure, the modern design, high durability and convenient use sets up the connecting cylinder and set up the pawl at the connecting cylinder internal surface through one side at the column foot, the pawl directly falls into the ratchet, avoided the pawl because of supporting spring deformation and the unable condition of transmitting power takes place, additionally, at the transmission in-process, the pawl is connected with ratchet one-to-one and meshing, power transmission point has been increased, the reliability of power transmission has greatly been improved, the condition that the bicycle neutral appears in the in-process of riding has thoroughly been stopped.

Drawings

FIG. 1 is a schematic view of the connection between the drum and the bearing according to the present invention;

FIG. 2 is a schematic structural view of the tower footing of the present invention;

fig. 3 is a vertical cross-sectional view of the present invention.

In the figure: 100. a drum; 101. a bearing; 102. a ratchet; 103. a drum; 104. connecting holes; 105. a groove; 200. a connecting shaft; 201. a ratchet wheel; 202. a limit nut; 300. a tower footing; 301. a pawl; 302. a connecting cylinder; 303. a through hole; 304. a retainer ring; 305. mounting grooves; 306. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The utility model provides a bicycle flower-drum long in service life as shown in fig. 1-3, including drum barrel 100, connecting axle 200 and column foot 300, be equipped with the bearing 101 that is used for accepting connecting axle 200 in the drum barrel 100, outer lane one side of bearing 101 is fixed with ratchet 201, ratchet 201's surface is equipped with a plurality of ratchet 102, the equal slope setting of a plurality of ratchet 102, the both ends of connecting axle 200 all are equipped with stop nut 202, column foot 300 cup joints the one end at connecting axle 200, column foot 300 is equipped with connecting cylinder 302 towards one side of drum barrel 100, the internal surface of connecting cylinder 302 is equipped with a plurality of connecting rod 306, all be equipped with pawl 301 on every connecting rod 306, the one end of pawl 301 extends to the bottom of ratchet 102.

In addition, the drum plate 103 is arranged on the outer edges of the two ends of the drum barrel 100 in an integrated mode, the drum plate 103 is connected with the drum barrel 100 more stably through the integrated design, the plurality of connecting holes 104 are formed in the periphery of the drum plate 103, spokes are convenient to install, and the groove 105 is formed in one side of the drum plate 103.

Specifically, the central axes of the drum 100, the connecting shaft 200 and the tower footing 300 are coincident, so that the drum 100 can be ensured to be stable during operation.

It should be noted that the outer ring of the bearing 101 is fixedly connected with the inner diameter of the drum 100, and the inner ring of the bearing 101 is connected with the connecting shaft 200 in a key manner, so as to ensure that the drum 100 can keep rotating after the connecting shaft 200 is fixedly mounted with the frame.

Specifically, the center department of column foot 300 is equipped with through-hole 303, the diameter of through-hole 303 is greater than the diameter of connecting axle 200, ensure that connecting axle 200 can pass column foot 300, the diameter of connecting cylinder 302 is greater than the addendum circle diameter of ratchet 201, ensure that connecting cylinder 302 can cup joint on ratchet 201, one side of connecting cylinder 302 be equipped with recess 105 assorted retaining ring 304, can carry on spacingly to column foot 300, when the retaining ring 304 receives recess 105 bottom to block, ratchet 102 is located same vertical section with pawl 301.

It should be noted that, the outer surface of the tower footing 300 is provided with a plurality of mounting grooves 305 in a surrounding manner, and the mounting grooves 305 are arranged at equal intervals, so that the flywheel conveniently mounted on the tower footing 300 can better transmit power, and the sliding between the tower footing 300 and the flywheel is avoided.

Specifically, the ratchet 102 is arranged in the counterclockwise direction, the pawl 301 is arranged in the clockwise direction, and the pawl 301 is connected with the connecting rod 306 through a one-way bearing, so that the pawl 301 is meshed with the ratchet 102 when rotating clockwise and is separated from the ratchet 102 when rotating counterclockwise, and when the pedal rotates in the forward direction, the tower footing 300 is driven to rotate through a chain and a flywheel, and then the power is transmitted to the drum 100 through the tower footing 300, so that the forward movement of the bicycle is realized, and meanwhile, the hub sliding during the pedal stopping or backward reverse rotation can be realized.

The working principle is as follows: when the long-service-life bicycle hub is installed, the connecting shaft 200 is firstly inserted into the drum barrel 100 and fixed on a frame, then the tower footing 300 is sleeved on the connecting shaft 200, the retainer ring 304 is attached to the bottom of the groove 105, the limiting nuts 202 are fixed at two ends of the connecting shaft 200, spokes on a wheel penetrate through the connecting holes 104 and are fixed, and therefore the installation of the hub is completed, at the moment, the ratchets 102 and the pawls 301 are located on the same section, when the tower footing 300 rotates clockwise, each pawl 301 is meshed and connected with the corresponding ratchet 102, the connection is more stable, the power transmission is more reliable, and the occurrence of a neutral position condition is avoided.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a long service life's bicycle flower-drum which characterized in that: the drum comprises a drum (100), a connecting shaft (200) and a tower footing (300), wherein a bearing (101) used for bearing the connecting shaft (200) is arranged in the drum (100), a ratchet wheel (201) is fixed on one side of the outer ring of the bearing (101), a plurality of ratchet teeth (102) are arranged on the outer surface of the ratchet wheel (201), the plurality of ratchet teeth (102) are arranged in an inclined mode, limiting nuts (202) are arranged at two ends of the connecting shaft (200), the tower footing (300) is sleeved at one end of the connecting shaft (200), a connecting cylinder (302) is arranged on one side, facing the drum (100), of the tower footing (300), a plurality of connecting rods (306) are arranged on the inner surface of the connecting cylinder (302), a pawl (301) is arranged on each connecting rod (306), and one end of the pawl (301) extends to the bottom of the ratchet teeth (102).

2. A long-life bicycle hub as claimed in claim 1, wherein: the drum is characterized in that drum disks (103) are integrally arranged on the outer edges of two ends of the drum barrel (100), a plurality of connecting holes (104) are formed in the periphery of each drum disk (103), and a groove (105) is formed in one side of each drum disk (103).

3. A long-life bicycle hub as claimed in claim 1, wherein: the central axes of the drum barrel (100), the connecting shaft (200) and the tower footing (300) are coincident.

4. A long-life bicycle hub according to claim 1, wherein: the outer ring of the bearing (101) is fixedly connected with the inner diameter of the drum barrel (100), and the inner ring of the bearing (101) is connected with the connecting shaft (200) in a key mode.

5. A long-life bicycle hub as claimed in claim 2, wherein: the center department of column foot (300) is equipped with through-hole (303), the diameter of through-hole (303) is greater than the diameter of connecting axle (200), the diameter of connecting cylinder (302) is greater than the addendum circle diameter of ratchet (201), one side of connecting cylinder (302) is equipped with retaining ring (304) with recess (105) assorted.

6. A long-life bicycle hub as claimed in claim 1, wherein: the surface of column foot (300) encircles and is equipped with a plurality of mounting grooves (305), a plurality of mounting groove (305) equidistance sets up.

7. A long-life bicycle hub as claimed in claim 1, wherein: the ratchet (102) is arranged in the anticlockwise direction, the pawl (301) is arranged in the clockwise direction, and the pawl (301) is connected with a connecting rod (306) through a one-way bearing.