阅读说明：本技术 紧固机构 (Fastening mechanism ) 是由 孙强 段大鹏 张明 于 2019-04-25 设计创作，主要内容包括：本发明公开了一种紧固机构,用于连接平行设置的第一外部板材和第二外部板材,包括本体,所述本体具有第一端部和与所述第一端部相背对的第二端部；第一铆接部,所述第一铆接部设置在所述本体的第一端部并且从所述第一端部向外凸起,从而在所述本体的第一端部形成围绕所述第一铆接部的第一台阶面,所述第一台阶面用于在所述第一铆接部与所述第一外部板材铆接后与所述第一外部板材抵接；第二铆接部,所述第二铆接部设置在所述本体的第二端部并且从所述第二端部向外凸起,从而在所述本体的第二端部形成围绕所述第二铆接部的第二台阶面,所述第二台阶面用于在所述第二铆接部与所述第二外部板材铆接后与所述第二外部板材抵接。(The invention discloses a fastening mechanism which is used for connecting a first external plate and a second external plate which are arranged in parallel and comprises a body, wherein the body is provided with a first end part and a second end part opposite to the first end part; a first rivet connection portion provided at a first end portion of the body and protruding outward from the first end portion so as to form a first step surface surrounding the first rivet connection portion at the first end portion of the body, the first step surface being for abutting against the first outer panel after the first rivet connection portion is riveted to the first outer panel; the second riveting part is arranged at the second end of the body and protrudes outwards from the second end, so that a second step surface surrounding the second riveting part is formed at the second end of the body, and the second step surface is used for being abutted against the second outer plate after the second riveting part is riveted with the second outer plate.)

1. A fastening mechanism for connecting a first outer sheet and a second outer sheet arranged in parallel, the fastening mechanism comprising:

a body having a first end and a second end opposite the first end;

A first rivet connection portion provided at a first end portion of the body and protruding outward from the first end portion so as to form a first step surface surrounding the first rivet connection portion at the first end portion of the body, the first step surface being for abutting against the first outer panel after the first rivet connection portion is riveted to the first outer panel;

the second riveting part is arranged at the second end of the body and protrudes outwards from the second end, so that a second step surface surrounding the second riveting part is formed at the second end of the body, and the second step surface is used for being abutted against the second outer plate after the second riveting part is riveted with the second outer plate.

2. The fastening mechanism of claim 1, wherein the first riveted portion is connected to the first outer plate by a press rivet, a flip rivet, or a crimp;

or the second riveting part is connected with the first external plate through press riveting, turn riveting or turn-up.

3. The fastening mechanism of claim 1, wherein the first rivet and/or the second rivet comprises serrations.

4. The fastening mechanism according to claim 1, wherein a first protrusion protruding outward from the end surface is provided on the end surface of the first end portion of the body, and the first protrusion is configured to be embedded in the first outer plate after the first rivet portion is riveted to the first outer plate.

5. A fastening mechanism according to claim 4 wherein the first projection comprises at least one cog block provided at an edge at or adjacent the end face of the first end of the body.

6. The fastening mechanism according to claim 1, wherein a second protruding portion protruding outward from the end surface is provided on the end surface of the second end portion of the body, and the second protruding portion is configured to be embedded in the second outer plate after the second rivet portion is riveted to the second outer plate.

7. A fastening mechanism according to claim 6 wherein the second projection comprises at least one cog block provided at an edge at or adjacent the end face of the second end of the body.

8. The fastening mechanism of claim 1, including a support portion disposed outside the body, wherein two end faces of the support portion are flush with the end face of the first end portion and the end face of the second end portion of the body, respectively.

9. The fastening mechanism of claim 8, wherein the body and the support portion are of unitary construction.

10. The fastening mechanism of claim 8, wherein the support portion is cylindrical or polygonal or shaped.

Technical Field

The invention relates to the technical field of connecting pieces, in particular to a fastening mechanism.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

The improvement of automobile science and technology makes automobiles become the most common transportation tools for people to go out. In the process of automobile molding and assembling, two or more plate members are generally required to be connected. At present, two plate parts are directly and fixedly connected by directly adopting a threaded connecting piece, and the device has the characteristic of simple structure.

A plurality of threaded connecting pieces are usually required to be fixed between the two plates at the same time, and when the distance between the two plates needs to be adjusted, each threaded connecting piece needs to be adjusted, so that the operation is complicated; and many car plates are the thin slice material, and the error that produces in the adjustment process can cause the deformation between two plates usually, influences the work accuracy nature between two plates on the one hand, and on the other hand influences the whole aesthetic property of car.

It should be noted that the above background description is only for the sake of clarity and complete description of the technical solutions of the present invention and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the invention.

Disclosure of Invention

In order to overcome the defects in the prior art, embodiments of the present invention provide a fastening mechanism, which can realize abutting of end surfaces of two external plates through two step surfaces of the fastening mechanism, so as to reduce the deformation degree of the external plates, and on the other hand, the two riveting parts are riveted with the external plates, so that the installation procedure is effectively simplified, and the installation time is shortened.

The embodiment of the application discloses: a fastening mechanism for connecting a first outer plate and a second outer plate arranged in parallel comprises a body, a first connecting rod and a second connecting rod, wherein the body is provided with a first end and a second end opposite to the first end; a first rivet connection portion provided at a first end portion of the body and protruding outward from the first end portion so as to form a first step surface surrounding the first rivet connection portion at the first end portion of the body, the first step surface being for abutting against the first outer panel after the first rivet connection portion is riveted to the first outer panel; the second riveting part is arranged at the second end of the body and protrudes outwards from the second end, so that a second step surface surrounding the second riveting part is formed at the second end of the body, and the second step surface is used for being abutted against the second outer plate after the second riveting part is riveted with the second outer plate.

Further, the first riveting part is connected with the first external plate through press riveting, turn riveting or turn-up; or the second riveting part is connected with the first external plate through press riveting, turn riveting or turn-up.

Further, the first riveting portion and/or the second riveting portion comprise flower teeth.

Furthermore, a first protruding portion protruding outwards from the end face is arranged on the end face of the first end portion of the body, and the first protruding portion is used for being embedded into the first external plate after the first riveting portion is riveted with the first external plate.

Further, the first boss includes at least one gear tooth block disposed at an edge at or adjacent an end face of the first end of the body.

Furthermore, a second protruding portion protruding outwards from the end face is arranged on the end face of the second end portion of the body, and the second protruding portion is used for being embedded into the second outer plate after the second riveting portion is riveted with the second outer plate.

Further, the second boss includes at least one gear tooth block disposed at an edge at or adjacent an end face of the second end of the body.

And the support part is sleeved on the outer side of the body, and two end faces of the support part are respectively flush with the end face of the first end part and the end face of the second end part of the body.

Further, the body and the support portion are of unitary construction.

Further, the supporting part is a cylinder or a polygon or a profile body.

By means of the technical scheme, the embodiment of the invention has at least one of the following beneficial effects:

1. the arrangement of the first step surface and the second step surface can increase the contact area between the first external plate and the fastening mechanism, and when the first external plate and the second external plate are subjected to external force, the step surfaces can bear part of the external force, so that the deformation degree of the first external plate and the second external plate is effectively reduced;

2. the first step surface and the second step surface are riveted with the first external plate and the second external plate, the original locking connection of a threaded part is replaced, the installation procedure is effectively simplified, and the installation time is shortened; meanwhile, an external fixing piece introduced when a threaded piece is used is avoided, and the overall production cost is reduced;

3. Through setting up the supporting part in this application, need be to two in actual assembly perpendicular clearance between the plate is controlled, then selects to have suitable height just the polygon body can realize accurate control to predetermineeing the clearance, has replaced the manual work to adjust its position on the screw rod through swivel nut and has realized.

In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

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 the drawings without creative efforts.

FIG. 1 is a schematic diagram of the overall device structure in one embodiment of the present invention;

FIG. 2 is a top view of the overall device structure in one embodiment of the present invention;

FIG. 3 is a schematic view of the overall device structure in another embodiment of the present invention;

Fig. 4 is a schematic view of the overall device structure in yet another embodiment of the present invention.

Reference numerals of the above figures: 1. a body; 2. a first rivet joint; 3. a second riveted part; 4. a first step surface; 5. a second step surface; 6. a first boss portion; 7. a support portion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, in the description of the present invention, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is considered as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Referring to fig. 1 and 2, the present embodiment discloses a fastening mechanism for connecting a first outer plate and a second outer plate (not shown) arranged in parallel. The fastening mechanism comprises a body 1 having a first end and a second end opposite to the first end, a first rivet 2 disposed at the first end of the body 1 and protruding outward from the first end, and a second rivet 3 disposed at the second end of the body 1 and protruding outward from the second end. A first step surface 4 surrounding the first riveting part is formed at the first end part of the body 1, and the first step surface 4 is used for being abutted against the first outer plate after the first riveting part 2 is riveted with the first outer plate; a second step surface 5 surrounding the second riveting portion 3 is formed at the second end of the body 1, and the second step surface 5 is used for abutting against the second outer plate after the second riveting portion 3 is riveted with the second outer plate.

In the above embodiment, the first step surface 4 and the second step surface 5 are provided to increase the contact area between the first outer plate and the fastening mechanism, and when the first outer plate and the second outer plate receive an external force, the first step surface 4 and the second step surface 5 can bear a part of the external force, thereby effectively reducing the deformation degree of the first outer plate and the second outer plate. The first riveting part 2 and the second riveting part 3 are respectively riveted with the first external plate and the second external plate, and the existing locking connection of a threaded part is replaced, so that the mounting process is effectively simplified, and the mounting time is shortened; meanwhile, an external fixing piece introduced when the threaded piece is used is avoided, and the overall production cost is reduced.

In the present embodiment, the body 1 is located between the first and second outer plates, and preferably, the first and second outer plates are arranged in parallel. It will be appreciated that the parallel arrangement described herein is such that the two outer sheets are substantially parallel at the fastening mechanism and may have some angular deviation due to variations in the location of engagement or the shape of the sheets. The first riveting portion 2 is inserted perpendicularly to the first outer plate, and the second riveting portion 3 is inserted perpendicularly to the second outer plate. In some embodiments, the hardness of the first outer sheet material is different from that of the first riveting portion 2, and the hardness of the second outer sheet material is different from that of the second riveting portion 3, and generally, the hardness of the riveting portion is greater than that of the sheet material, so that the effectiveness of the riveting process can be better ensured.

In the present embodiment, the cross-sectional area of the first end portion of the body 1 (the cross-sectional area is a plane perpendicular to the connecting axis between the first end portion and the second end portion) is larger than the cross-sectional area of any one of the first caulking portions 2 so that the first step surface 4 for abutting against the first outer plate material can be formed; similarly, the cross-sectional area of the second end of the body 1 is larger than the cross-sectional area of any one of the second caulking portions 3, so that the second step surface 5 for abutting against the second outer plate material can be formed. In this embodiment, the first step surface 4 and one end surface of the first outer plate close to the body 1 are preferably arranged in parallel to each other; the second step surface 5 and the end surface of one side, close to the body 1, of the second outer plate are arranged in parallel. In the arrangement mode, after the fastening mechanism is riveted with the first external plate and the second external plate respectively, the end face of the first step face 4 can be completely attached to the end face of the first external plate, and the second step face 5 can be completely attached to the end face of the second external plate. When first outside panel and/or second outside panel receive external pressure, can effectively improve the validity and the stability of butt, reduce relative rocking between first outside panel and the second outside panel.

As shown in fig. 1 and 2, in the present embodiment, the first caulking part 2 and/or the second caulking part 3 includes serrations. The first riveting part 2 is connected with the first external plate through press riveting, turn riveting or turn-up; or the second riveting part 3 is connected with the first external plate through press riveting, turn riveting or turn-up. Specifically, the first riveting portion 2 and the second riveting portion 3 both include a spline tooth, and groove bodies for inserting the spline tooth are formed in the first external plate and the second external plate. Preferably, the flower teeth of the first riveting part 2 are arranged at the first end of the body 1 or at the middle position adjacent to the first end of the body 1; or the teeth of the second riveting part 3 are arranged at the second end of the body 1 or at the middle position adjacent to the second end of the body 1. In the riveting process, firstly, partial structures of the two spline teeth are respectively inserted into the groove bodies, and then, external riveting force is applied to the first external plate and/or the second external plate, so that the two spline teeth are completely inserted into the groove bodies, and the riveting action of the spline teeth and the first external plate and the second external plate is completed. It should be noted that when the surface of the first step surface 4 is attached to the surface of the first outer plate, and the surface of the second step surface 5 is attached to the surface of the second outer plate, the press riveting operation is completed. Through foretell mode of setting up, adopt riveted locking mode to replace original bolt fastening, simplified the installation procedure effectively, shortened holistic installation time, also alleviateed the amount of labour.

In an alternative embodiment, as shown in fig. 3, one of the first rivet 2 and the second rivet 3 includes a spline, while the other can be configured to have other configurations. In particular, the first rivet 2 comprises a spline and the second rivet 3 comprises a cylinder at or near the middle of the second end of the body 1. The first external plate is provided with a groove body for inserting the spline teeth, and the second external plate is provided with a groove body for inserting the cylinder. In the riveting process, firstly inserting the spline teeth and part of the structure of the cylinder into the groove body, preferably, a limiting part is protruded on the inner wall of the groove body for inserting the cylinder, and the limiting part can be abutted against the end face of the cylinder in the process of inserting the cylinder; and applying external riveting force to the first external plate and/or the second external plate to enable the spline teeth to be completely inserted into the groove bodies respectively, and extruding the cylinder to enable the limiting part to deform so that the cylinder is completely inserted into the groove bodies, so that the riveting action of the spline teeth and the first external plate, and the riveting action of the cylinder and the second external plate are completed. It should be noted that when the first step surface 4 is attached to the surface of the first outer plate and the second step surface 5 is attached to the surface of the second outer plate, the press riveting operation is completed. Through foretell mode of setting up, adopt riveted locking mode to replace original bolt fastening, simplified the installation procedure effectively, shortened holistic installation time, also alleviateed the amount of labour.

In another optional embodiment, the first riveting portion 2 and the second riveting portion 3 may also be connected to the first outer plate and the second outer plate through flanging or other manners. In the above embodiments, the first riveting portion 2 and the second riveting portion 3 can be connected to the first external plate and the second external plate by a fastening method instead of a screw, and the first riveting portion 2 and the second riveting portion 3 can be connected to the first external plate and the second external plate by any specific structure, which is not limited or recited in the present embodiment.

As shown in fig. 2 and 4, in the present embodiment, a first protrusion 6 protruding outward from the first end is provided on an end surface of the first end of the body 1, for example, protruding toward the first outer plate. In some embodiments, the first raised portion 6 has a greater hardness than the first outer sheet material, thereby enabling the first raised portion 6 to be embedded within the first outer sheet material when the first rivet 2 is riveted thereto. The end face of the second end of the body 1 is provided with a second protrusion protruding outward from the second end, for example, protruding toward the second outer plate. In some embodiments, the second raised portion has a hardness greater than the second outer panel, thereby enabling the second raised portion to be embedded within the second outer panel after the second rivet is riveted to the second outer panel. The first boss 6 comprises at least one cog block provided at an edge at or adjacent to the end face of the second end of the body 1. Specifically, in the present embodiment, the first rivet 2 includes a spline, and the second rivet 3 includes a cylinder at or near the middle of the second end of the body 1. The cylinder inserts the in-process of cell body, the surface of the outer panel of second can with teeth of a cogwheel piece butt, just the outer panel of second can be right teeth of a cogwheel piece is applyed certain external pressure, makes the whole imbeds of teeth of a cogwheel piece in the outer panel of second. It should be noted that when the first step surface 4 is attached to the surface of the first outer plate and the second step surface 5 is attached to the surface of the second outer plate, the press riveting operation is completed.

Referring to fig. 1 to 4, in this embodiment, the fastening mechanism includes a supporting portion 7 sleeved outside the body 1, and two end surfaces of the supporting portion 7 are flush with an end surface of the first end portion and an end surface of the second end portion of the body 1, respectively. Through the flush arrangement mode, as the first step surface 4 and the second step surface 5 are respectively formed between the body 1 and the first riveting part 2 and the second riveting part 3, two end surfaces of the supporting part 7 can be respectively flush with the end surfaces of the first step surface 4 and the second step surface 5, so that after riveting is completed, the contact areas of the first external plate and the second external plate with the fastening mechanism can be better increased. In the subsequent installation and use processes, when the first external plate and the second external plate are subjected to external force, the deformation of the first external plate and the second external plate can be reduced better by the increased contact area, and the working stability and effectiveness of the first external plate and the second external plate are ensured.

In the present embodiment, the support portion 7 is a cylindrical body, a polygonal body, or a special-shaped body. In particular, the support 7 is a regular polygon. When the vertical gap between the first outer plate and the second outer plate needs to be controlled in actual assembly, the regular polygonal body with the proper height is selected to realize accurate control on the preset gap, and manual adjustment of the position of the regular polygonal body on the screw rod through a rotating nut is replaced. Compared with the prior art, the implementation mode reduces the generation of errors and ensures the accuracy of the reserved gap; on the other hand, the connecting mode is changed, the procedure of manual adjustment is directly omitted, the installation time is greatly shortened, and the labor intensity of workers is reduced. Of course, the above-mentioned supporting portion 7 may also be in other expressions such as a cylinder or a special-shaped body, and is not limited and described herein.

In the present embodiment, the body 1 and the support portion 7 are integrally formed, specifically, integrally formed by using a stamping technique. Compared with the prior art, the processing procedure is simpler, the installation procedure is also simpler, and the whole fastening time can be better shortened in two aspects. And adopt integrated into one piece to set up, for the cooperation of a plurality of spare parts between the prior art, it can effectively avoid the error between the cooperation, improves holistic fastening precision, configuration optimization.

The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.