CN211693152U - Fastening assembly - Google Patents

Abstract

The utility model relates to a fastener technical field discloses a fastening components. The fastening assembly comprises a fastening piece and a sleeve, the fastening piece comprises a rod part and a limiting bulge, the limiting bulge is arranged on the side wall of the rod part and located on the upper part of the rod part, and threads are arranged on the lower part of the rod part. The sleeve is provided with a limiting groove matched with the limiting protrusion, the rod part can penetrate through the sleeve to enable the limiting protrusion to be inserted into the limiting groove, and the lower part of the rod part is in threaded fit with the body to be fastened. The utility model provides a fastening assembly can restrict pole portion and the screw-thread fit length of treating the fastening body through the cooperation of spacing arch and spacing recess to play the effect of location, ensure positioning accuracy's accuracy, improve the assembly precision, simultaneously, spacing arch can also play the effect of strengthening, improves the intensity of pole portion, in addition, the utility model provides a fastening assembly convenient to detach can manifold cycles use to simple structure, easily processing.

Description

Fastening assembly

Technical Field

The utility model relates to a fastener technical field especially relates to a fastening components.

Background

In the production process of a lamp for an automobile, the lamp is generally assembled or fixed to a vehicle body by a fastener such as a screw. However, existing fasteners typically do not ensure assembly accuracy. Therefore, a new fastening assembly is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fastening component, it compares with prior art, can play the effect of location, ensures positioning accuracy's accuracy to can improve the assembly precision, and fastening component self intensity is high, the recycling of being convenient for, simple structure, easily processing.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a fastening assembly, comprising:

the fastener comprises a rod part and a limiting bulge, the limiting bulge is arranged on the side wall of the rod part and is positioned at the upper part of the rod part, and the lower part of the rod part is provided with threads;

the rod part can penetrate through the sleeve to enable the limiting protrusion to be inserted into the limiting groove, and the lower part of the rod part is in threaded fit with the body to be fastened.

As a preferable aspect of the fastening member, the fastening member further includes a screw portion provided at an upper end of the shaft portion.

As a preferable mode of the fastening assembly, the limiting protrusion is long and extends along the extending direction of the rod part.

As a preferable mode of the fastening assembly, the limiting protrusion extends out of the limiting groove along a radial direction of the sleeve.

As a preferable scheme of the fastening assembly, an arc surface is arranged on the limiting protrusion, the arc surface is opposite to the side wall of the rod part, and the curvature radius of the arc surface is equal to that of the outer wall surface of the sleeve and can be spliced with the outer wall surface of the sleeve.

As a preferable scheme of the fastening assembly, an upper end surface of the limiting protrusion is connected with a lower surface of the screwing part.

As a preferable scheme of the fastening assembly, the number of the limiting protrusions is multiple, and the limiting protrusions are distributed along the circumferential direction of the rod part.

As a preferable scheme of the fastening assembly, the number of the limiting protrusions is two, and the two limiting protrusions are symmetrically distributed on two sides of the rod part.

Preferably, the fastening component is an integrally formed structure.

The utility model has the advantages that:

the utility model provides a fastening assembly, through set up spacing arch on the pole portion of fastener to set up spacing recess on the sleeve, when using fastening assembly, can make pole portion pass the sleeve and make spacing arch insert and establish in spacing recess, can restrict pole portion and the screw-thread fit length of treating the fastening body through spacing arch and spacing recess's cooperation, thereby play the effect of location, ensure positioning accuracy's accuracy, improve the assembly precision, simultaneously, spacing arch can also play the effect of strengthening, improves the intensity of pole portion, in addition, the utility model provides a fastening assembly convenient to detach can manifold cycles use to simple structure, easily processing.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and 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 contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic structural view of a fastener in a fastening assembly according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a sleeve in a fastening assembly according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating a first engagement between a limiting protrusion and a limiting groove provided in an embodiment of the present invention;

fig. 4 is a schematic diagram of a second cooperation between the limiting protrusion and the limiting groove provided in the embodiment of the present invention.

In the figure:

1-a fastener; 11-a stem portion; 12-a limit protrusion; 121-cambered surface; 13-a screw-on portion;

2-a sleeve; 21-limiting groove.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the 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 "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only or to distinguish between different structures or components and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; 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 in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the present embodiment provides a fastening assembly, which includes a fastening member 1 and a sleeve 2, wherein the fastening member 1 includes a shaft 11 and a limiting protrusion 12, the limiting protrusion 12 is disposed on a side wall of the shaft 11 and located at an upper portion of the shaft 11, and a lower portion of the shaft 11 is provided with a thread. The sleeve 2 is provided with a limiting groove 21 matched with the limiting protrusion 12, the rod part 11 can penetrate through the sleeve 2 to enable the limiting protrusion 12 to be inserted into the limiting groove 21, and the lower part of the rod part 11 is in threaded fit with the body to be fastened.

The fastening component that this embodiment provided, through set up spacing arch 12 on the pole portion 11 at fastener 1, and set up spacing recess 21 on sleeve 2, when using fastening component, can make pole portion 11 pass sleeve 2 and make spacing arch 12 insert and establish in spacing recess 21, can restrict pole portion 11 and the screw-thread fit length who treats the fastening body through spacing arch 12 and spacing recess 21's cooperation, thereby play the effect of location, ensure positioning accuracy's accuracy, improve the assembly precision, and simultaneously, spacing arch 12 can also play the effect of strengthening, improves the intensity of pole portion 11, in addition, the utility model provides a fastening component convenient to detach can use by manifold cycles, and simple structure, easily processing.

Optionally, the inner diameter of the sleeve 2 is equal to the diameter of the rod portion 11, so as to prevent the rod portion 11 from shaking in the radial direction of the sleeve 2 when being inserted into the sleeve 2.

Optionally, the fastener 1 further comprises a screw 13, the screw 13 being provided at the upper end of the shank 11. By the cooperation of the screwing tool with the screwing part 13, the assembly of the fastener 1 with the body to be fastened can be accomplished conveniently and quickly. Further, the screw 13 has a hexagonal or circular shape.

Alternatively, the stopper projection 12 is elongated and extends in the extending direction of the rod 11. Namely, the limit bulge 12 is in the shape of a limit rib.

Alternatively, as shown in fig. 3, the stopper projection 12 protrudes out of the stopper groove 21 in the radial direction of the sleeve 2. Of course, the limiting protrusion 12 may not extend out of the limiting groove 21, but may be spliced with the outer wall surface of the sleeve 2 to ensure the integrity of the outer wall surface of the sleeve 2. Specifically, as shown in fig. 4, the limiting protrusion 12 is provided with an arc surface 121, the arc surface 121 is opposite to the side wall of the rod portion 11, and the curvature radius of the arc surface 121 is equal to the curvature radius of the outer wall surface of the sleeve 2 and can be spliced with the outer wall surface of the sleeve 2.

Alternatively, the upper end surface of the stopper projection 12 is connected to the lower surface of the screw part 13. By means of the arrangement, the strength of the screwing part 13 can be improved, and the fastener 1 can be recycled for multiple times.

Optionally, the number of the limiting protrusions 12 is plural, and the plural limiting protrusions 12 are distributed along the circumferential direction of the rod part 11. The number and the distribution form of the limiting protrusions 12 are adjusted, so that the assembly mistake proofing effect can be achieved.

Optionally, the number of the limiting protrusions 12 is two, and the two limiting protrusions 12 are symmetrically distributed on two sides of the rod portion 11, that is, an included angle between the two limiting protrusions 12 is a straight angle. Of course, in other embodiments, the included angle between the two limiting protrusions 12 can also be an acute angle, so as to prevent assembly errors.

Preferably, the fastener 1 is of one-piece construction. The integrally formed fastener 1 has high strength and long service life, and is convenient to machine and form.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (9)

1. A fastening assembly, comprising:

the fastener (1) comprises a rod part (11) and a limiting bulge (12), the limiting bulge (12) is arranged on the side wall of the rod part (11) and is positioned at the upper part of the rod part (11), and threads are arranged at the lower part of the rod part (11);

the sleeve (2) is provided with a limiting groove (21) matched with the limiting protrusion (12), the rod part (11) can penetrate through the sleeve (2) to enable the limiting protrusion (12) to be inserted into the limiting groove (21), and the lower part of the rod part (11) is in threaded fit with the body to be fastened.

2. The fastening assembly according to claim 1, characterized in that the fastening member (1) further comprises a screw portion (13), the screw portion (13) being provided at an upper end of the stem portion (11).

3. The fastening assembly according to claim 2, wherein the stopper projection (12) is elongated and extends in the direction of extension of the stem (11).

4. A fastening assembly according to claim 3, wherein the retaining protrusion (12) protrudes out of the retaining groove (21) in a radial direction of the sleeve (2).

5. The fastening assembly according to claim 3, characterized in that an arc surface (121) is arranged on the limiting protrusion (12), the arc surface (121) is opposite to the side wall of the rod part (11), and the curvature radius of the arc surface (121) is equal to the curvature radius of the outer wall surface of the sleeve (2) and can be spliced with the outer wall surface of the sleeve (2).

6. The fastening assembly according to claim 3, wherein an upper end surface of the stopper protrusion (12) is connected with a lower surface of the screw part (13).

7. The fastening assembly according to any one of claims 1 to 6, wherein the number of the limiting protrusions (12) is plural, and the plural limiting protrusions (12) are distributed along the circumferential direction of the stem portion (11).

8. The fastening assembly according to claim 7, wherein the number of the limiting protrusions (12) is two, and the two limiting protrusions (12) are symmetrically distributed on two sides of the rod portion (11).

9. A fastening assembly according to any of claims 1-6 characterized in that the fastening member (1) is of one-piece construction.

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