CN214063541U - Inner hole step thin-wall center sleeve for automobile - Google Patents
Inner hole step thin-wall center sleeve for automobile Download PDFInfo
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- CN214063541U CN214063541U CN202022945799.5U CN202022945799U CN214063541U CN 214063541 U CN214063541 U CN 214063541U CN 202022945799 U CN202022945799 U CN 202022945799U CN 214063541 U CN214063541 U CN 214063541U
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- hole
- internal diameter
- main part
- center sleeve
- wall
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Abstract
The utility model discloses a hole step thin wall center sleeve for car, a serial communication port, including the bush main part, the inner chamber of bush main part has set gradually through-hole, spacing hole and ball-type radian step hole along the axial, the inner wall of through-hole is provided with the internal thread, the internal diameter in spacing hole is less than the internal diameter of through-hole, the internal diameter of through-hole is less than the internal diameter in ball-type radian step hole, the periphery of bush main part is provided with the flange.
Description
Technical Field
The utility model relates to a car center sleeve riveting technical field, concretely relates to hole step thin wall center sleeve for car.
Background
The flexible shaft bushing is complex in structure, the common process is difficult to machine and form at one time, and a rapidly-formed central sleeve is not available in the prior art, so that the production efficiency of the flexible shaft bushing is low, and the production cost and the machining time are greatly increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automobile-used hole step thin wall center cover to the aforesaid of prior art is not enough and the defect to solve above-mentioned problem.
The utility model provides a technical problem can adopt following technical scheme to realize:
the utility model provides an inner hole step thin wall center sleeve for car, its characterized in that, includes the bush main part, the inner chamber of bush main part has set gradually through-hole, spacing hole and ball-type radian step hole along the axial, the inner wall of through-hole is provided with the internal thread, the internal diameter in spacing hole is less than the internal diameter in through-hole, the internal diameter of through-hole is less than the internal diameter in ball-type radian step hole, the periphery of bush main part is provided with the flange.
In a preferred embodiment of the present invention, the flange is disposed on an outer wall of the limiting hole.
Since the technical scheme as above is adopted, the utility model discloses a central cover structural design is reasonable, and the easy shaping of cold-heading, the high internal stress of assembly atress back part intensity can not have the concentration, is difficult for producing the crackle and became invalid, has improved assembly precision and stability greatly. And the inner hole thread extrusion mode is adopted to be fixedly meshed with the tube wall of the flexible shaft assembly, the method is simple in assembly, does not need a complex structure, has an ideal effect, and can be formed by tapping after cold heading. In addition, the inner core of the flexible shaft assembly is fixed and limited in a mode of arranging the spherical radian stepped holes, and the method is simple in structure, ideal in effect and beneficial to cold heading forming.
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 front view of an embodiment of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
Fig. 3 is a sectional perspective view of an embodiment of the present invention.
Fig. 4 is a front view of an assembled state of an embodiment of the present invention.
Fig. 5 is an assembled state axial sectional view of an embodiment of the present invention.
Fig. 6 is a front view of a riveting state according to an embodiment of the present invention.
Fig. 7 is an axial sectional view showing a riveted state according to an embodiment of the present invention.
Fig. 8 is a front view of a riveted joint according to an embodiment of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further explained below.
Referring to fig. 1 to 8, the thin-walled center sleeve with inner hole steps for the automobile comprises a bushing main body 100, wherein a through hole 110, a limiting hole 120 and a spherical radian step hole 130 are sequentially arranged in an inner cavity of the bushing main body 100 along an axial direction. The inner wall of the through hole 110 is provided with an internal thread 111, the inner diameter of the limiting hole 120 is smaller than that of the through hole 110, the inner diameter of the through hole 120 is smaller than that of the spherical radian step hole 130, and the periphery of the bushing main body 100 is provided with a flange 140. Preferably, the flange 140 is provided on an outer wall of the stopper hole 120.
The utility model discloses during the use, flexible axle subassembly 10 inserts the utility model discloses a in the through-hole 110 and the spacing hole 120 of center cover, and utilize flexible axle subassembly 10 to go up bulb 11 and crimping cover 12 and ball-type radian step hole 130 and fix a position. The design of the spherical radian stepped hole 130 can increase the contact area with the crimping sleeve 12, thereby reducing the abrasion in use, and the design is favorable for cold heading forming. The shape of the through hole 110 is changed by inwards extruding the tools 30a and 30b on two sides of the bushing main body 100, the pipe wall 13 of the flexible shaft assembly 10 is fixed, but the flexible shaft assembly 10 inner core 14 can not be extruded to be over-head to influence the movement of the flexible shaft assembly 10 inner core 14 in the pipe wall 13. Because the through hole 110 is internally provided with the internal thread 111, the internal thread 111 is meshed with the flexible shaft assembly 10 through extrusion, thereby enhancing the friction force and preventing the flexible shaft assembly 10 and the central sleeve from falling and loosening. The other end of the flexible shaft rubber protection sleeve 20 wraps the cylindrical section 101 and the flange 140 of the bushing main body 100, and the rubber protection sleeve 20 covers the cylindrical section 101 and the flange 140. The inner core 14 is now movable within the tube wall 13.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. The utility model provides an inner hole step thin wall center sleeve for car, its characterized in that, includes the bush main part, the inner chamber of bush main part has set gradually through-hole, spacing hole and ball-type radian step hole along the axial, the inner wall of through-hole is provided with the internal thread, the internal diameter in spacing hole is less than the internal diameter in through-hole, the internal diameter of through-hole is less than the internal diameter in ball-type radian step hole, the periphery of bush main part is provided with the flange.
2. The thin-walled center sleeve with the inner hole step for the automobile as claimed in claim 1, wherein the flange is provided on an outer wall of the limiting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022945799.5U CN214063541U (en) | 2020-12-10 | 2020-12-10 | Inner hole step thin-wall center sleeve for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022945799.5U CN214063541U (en) | 2020-12-10 | 2020-12-10 | Inner hole step thin-wall center sleeve for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214063541U true CN214063541U (en) | 2021-08-27 |
Family
ID=77407044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022945799.5U Active CN214063541U (en) | 2020-12-10 | 2020-12-10 | Inner hole step thin-wall center sleeve for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214063541U (en) |
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2020
- 2020-12-10 CN CN202022945799.5U patent/CN214063541U/en active Active
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