CN219008039U

CN219008039U - Fast-assembling axis

Info

Publication number: CN219008039U
Application number: CN202223387306.6U
Authority: CN
Inventors: 岑孟再
Original assignee: Cixi Michelle Vehicle Industry Co ltd
Current assignee: Cixi Michelle Vehicle Industry Co ltd
Priority date: 2022-12-17
Filing date: 2022-12-17
Publication date: 2023-05-12
Anticipated expiration: 2032-12-17

Abstract

The utility model discloses a fast-assembling center shaft which comprises a center shaft body, a threaded hole, a first flange, a second flange, screws, a flange plate, tooth grooves, a center pipe, a first groove, a first bearing, a second groove, a second bearing, a first external thread, a second external thread, a small bowl and a large bowl, wherein the first flange is arranged on the center shaft body; the bottom end of the first bearing is provided with a first flange, the top end of the second bearing is provided with a second flange, and the first flange and the second flange are fixedly connected to the center shaft body; according to the utility model, the Pelin bearing is adopted, so that the pedal rotating smoothness is improved, and the use experience of a customer is optimized; according to the utility model, the center shaft, the center tube and the bearing are tightly matched, the center tube is matched with the threads of the big bowl and the small bowl, and the threads of the center tube are coated with the anti-falling glue, so that the loosening of the threads is effectively prevented, and the working reliability of the center shaft is realized; the big bowl and the small bowl are integrally molded by injection molding, the five-way pipe does not need to be processed with threads, the production cost and the assembly cost of the product are reduced, and the quick-mounting effect is achieved.

Description

Fast-assembling axis

Technical Field

The utility model relates to the technical field of bicycle accessories, in particular to a quick-mounting center shaft.

Background

Along with the development of economy, the green and environment-friendly travel degree is higher and higher, the whole scale of the bicycle industry is in a growing trend, and especially the bicycles are more and more convenient, quick, fashionable and other directions. The traditional square hole center shaft on the bicycle is fixed by adopting threads, and the square hole center shaft consists of a square shaft, a middle pipe, a bearing, a big bowl, a small bowl and a waterproof screw. The big bowl of square hole axis and bearing close-fitting, little bowl and bearing loose-fitting, and big bowl and bearing loose-fitting machinery wearing and tearing are big for the assembly loaded down with trivial details, and there is the shortcoming that whole bearing was turned around in the later stage, influences the reliability of riding and use.

Disclosure of Invention

The utility model aims to provide a quick-assembly center shaft so as to solve the problems in the prior art.

In order to solve the technical problems, the utility model provides the following technical scheme: the quick-assembly center shaft comprises a center shaft body, a center tube is arranged on the center shaft body, a first bearing is arranged at one end in the center tube, a second bearing is arranged at the other end in the center tube, the first bearing and the second bearing are fixedly connected to the center shaft body, a small bowl is connected to one end of the outer portion of the center tube through threads, a large bowl is connected to the other end of the outer portion of the center tube through threads, and screws are connected to the two ends of the center shaft body through threads.

Preferably, threaded holes are formed in the two ends of the center shaft body, and the screws are connected in the threaded holes in a threaded mode.

Preferably, the screw is fixedly connected with a flange plate, and the flange plate is provided with tooth grooves.

Preferably, the bottom of the first bearing is provided with a first flange, the top of the second bearing is provided with a second flange, and the first flange and the second flange are fixedly connected to the center shaft body.

Preferably, a first groove is formed in one end of the middle tube, a second groove is formed in the other end of the middle tube, the first bearing is arranged in the first groove, and the second bearing is arranged in the second groove.

Preferably, the first external thread is set at one end of the outer part of the middle pipe, the second external thread is set at the other end, the first internal thread is set in the small bowl, the first internal thread is in threaded connection with the first external thread, the second internal thread is set in the big bowl, and the second internal thread is in threaded connection with the second external thread.

Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the Pelin bearing is adopted, so that the pedal rotating smoothness is improved, and the use experience of a customer is optimized; according to the utility model, the center shaft, the center tube and the bearing are tightly matched, the center tube is matched with the threads of the big bowl and the small bowl, and the threads of the center tube are coated with the anti-falling glue, so that the loosening of the threads is effectively prevented, and the working reliability of the center shaft is realized; the big bowl and the small bowl are integrally molded by injection molding, the five-way pipe does not need to be processed with threads, the production cost and the assembly cost of the product are reduced, and the quick-mounting effect is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic overall perspective view of the present utility model;

FIG. 2 is an exploded view of the overall structure of the present utility model;

FIG. 3 is a schematic view of the overall front cut-away structure of the present utility model;

in the figure: 1. a central shaft body; 10. a threaded hole; 11. a first flange; 12. a second flange; 2. a screw; 20. a flange plate; 21. tooth slots; 3. a middle tube; 30. a first groove; 31. a first bearing; 32. a second groove; 33. a second bearing; 34. a first external thread; 35. a second external thread; 4. a small bowl; 40. a first internal thread; 5. a large bowl; 50. and a second internal thread.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

Referring to fig. 1-3, an embodiment of the present utility model is provided: the quick-mounting center shaft comprises a center shaft body 1, a center tube 3 is arranged on the center shaft body 1, a first bearing 31 is arranged at one end in the center tube 3, a second bearing 33 is arranged at the other end, the first bearing 31 and the second bearing 33 are fixedly connected to the center shaft body 1, a small bowl 4 is connected at one end outside the center tube 3 in a threaded manner, a big bowl 5 is connected at the other end in a threaded manner, and screws 2 are connected at two ends of the center shaft body 1 in a threaded manner; screw holes 10 are formed in two ends of the center shaft body 1, and the screws 2 are connected in the screw holes 10 in a threaded mode; the screw 2 is fixedly connected with a flange plate 20, and a tooth slot 21 is arranged on the flange plate 20; the bottom end of the first bearing 31 is provided with a first flange 11, the top end of the second bearing 33 is provided with a second flange 12, and the first flange 11 and the second flange 12 are fixedly connected to the center shaft body 1; a first groove 30 is formed in one end of the middle tube 3, a second groove 32 is formed in the other end of the middle tube, a first bearing 31 is arranged in the first groove 30, and a second bearing 33 is arranged in the second groove 32; the first external thread 34 is arranged at one end outside the middle pipe 3, the second external thread 35 is arranged at the other end, the first internal thread 40 is arranged in the small bowl 4, the first internal thread 40 is in threaded connection with the first external thread 34, the second internal thread 50 is arranged in the large bowl 5, and the second internal thread 50 is in threaded connection with the second external thread 35.

Working principle: the utility model is arranged in a frame five-way joint and is used for connecting a left crank and a right crank, a middle shaft body 1 is tightly matched with a middle pipe 3 through a first bearing 31 and a second bearing 33, and the middle pipe 3 is in threaded fit with a big bowl 5 and a small bowl 4 so as to be fixed in the frame five-way joint; the middle shaft body 1 is used for receiving kinetic energy from pedals and transmitting the kinetic energy to a chain through a chain wheel; the first external thread 34 and the second external thread 35 of the middle pipe 3 are coated with anti-falling glue, so that the loosening of threads is effectively prevented, and the large bowl 5 and the small bowl 4 are integrally formed by injection molding; the threaded holes 10 are used for installing screws 2, the flange plates 20 and the tooth grooves 21 are used for improving the connection tightness of the screws 2, the first flange 11 is used for limiting the first bearings 31, and the first groove 30 is used for installing the first bearings 31; the second flange 12 is used for limiting the second bearing 33, and the second groove 32 is used for installing the second bearing 33; the first internal thread 40 mates with the first external thread 34 and the second internal thread 50 mates with the second external thread 35.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a fast-assembling axis, includes axis body (1), its characterized in that: the novel middle shaft is characterized in that the middle shaft body (1) is provided with a middle tube (3), one end in the middle tube (3) is provided with a first bearing (31), the other end of the middle tube is provided with a second bearing (33), the first bearing (31) and the second bearing (33) are fixedly connected to the middle shaft body (1), one end outside the middle tube (3) is connected with a small bowl (4) through threads, the other end of the middle tube is connected with a large bowl (5) through threads, and two ends of the middle shaft body (1) are connected with screws (2) through threads.

2. The quick assembly bottom bracket according to claim 1, wherein: screw holes (10) are formed in the two ends of the center shaft body (1), and the screws (2) are in threaded connection with the screw holes (10).

3. The quick assembly bottom bracket according to claim 2, wherein: the screw (2) is fixedly connected with a flange plate (20), and a tooth slot (21) is arranged on the flange plate (20).

4. The quick assembly bottom bracket according to claim 1, wherein: the bottom of first bearing (31) is provided with first flange (11), and the top of second bearing (33) is provided with second flange (12), and first flange (11) and second flange (12) all fixed connection are on axis body (1).

5. The quick assembly bottom bracket according to claim 1, wherein: one end in well pipe (3) has seted up first recess (30), and the other end has seted up second recess (32), and first bearing (31) set up in first recess (30), and second bearing (33) set up in second recess (32).

6. The quick assembly bottom bracket according to claim 1, wherein: the outer one end of well pipe (3) has seted up first external screw thread (34), and second external screw thread (35) have been seted up to the other end, has seted up first internal screw thread (40) in bowl (4), and first internal screw thread (40) and first external screw thread (34) threaded connection, has seted up second internal screw thread (50) in bowl (5), and second internal screw thread (50) and second external screw thread (35) threaded connection.