Ball cap mounting structure of ball stud

Abstract

The embodiment of the utility model provides a ball cap mounting structure of a ball stud. The ball cap mounting structure comprises a mounting seat, a rubber ball cap and the ball stud, one end of the mounting seat is fixedly connected to an assembled part, and the other end is separated by a baffle to form an insertion cavity; the rubber ball cap is inserted and mounted in the insertion cavity, and is clamped and matched with the mounting seat through the annular groove and the annular convex ring; the ball part of the ball stud is inserted into the spherical groove of the rubber ball cap, and the bolt part is fixedly connected to the base body part; the annular groove and the annular convex ring are in interference fit in the axial direction, vibration conducted from the base body component can be effectively weakened, and contact abrasion between the rubber ball cap and the installation base can be effectively reduced through clearance fit in the radial direction.

Description

Technical Field

[0001] The utility model relates to the field of automobile accessories, in particular to a ball cap mounting structure of a ball stud. Background Art

[0002] When certain components need to be fixedly mounted on a base component that is constantly vibrating, such as when installing a decorative cover on an engine to an engine base, the assembled components will vibrate continuously with the base, causing the fixing points of the assembled components to become loose or even fall off.

[0003] In order to solve the above problems, the prior art usually adopts an assembly structure in which a ball stud and a rubber ball cap are fixed together. The rubber ball cap is installed on the corresponding mounting seat of the assembled component, and the ball stud is fixed on the base component and plugged into the rubber ball cap. However, since the ball stud and the base component are rigidly connected, the rubber ball cap on the assembled component will be continuously impacted by the vibration of the base component, causing the connection between the rubber ball cap and the mounting seat to be easily worn or broken. Utility Model Content

[0004] In view of this, an embodiment of the utility model provides a ball cap installation structure of a ball stud to reduce the wear of the rubber ball cap.

[0005] The utility model provides a ball cap mounting structure of a ball stud, comprising:

[0006] A mounting seat, one end of which is fixedly connected to the assembled component, and the other end of which is separated by a baffle to form an insertion cavity;

[0007] A rubber ball cap is inserted into the insertion cavity, a spherical groove is provided on the outer end surface of the rubber ball cap, and a certain gap is formed between the inner end surface of the rubber ball cap and the baffle;

[0008] A ball stud, wherein two ends of the ball stud are respectively provided with a ball head and a bolt part, the ball head is inserted into the spherical groove, and the bolt part is fixedly connected to the base component;

[0009] Among them, the outer end surface of the plug-in cavity is provided with a socket for inserting the rubber ball cap, the inner edge of the socket is formed with an annular convex ring, and the outer side wall of the rubber ball cap is correspondingly provided with an annular groove, the annular groove is snap-fitted with the annular convex ring, and the annular groove and the annular convex ring are interference fit in the axial direction and clearance fit in the radial direction.

[0010] Optionally, the interference between the annular groove and the annular protrusion in the axial direction is greater than 0.2 mm.

[0011] Optionally, a single-side clearance between the annular groove and the annular protrusion in the radial direction is greater than 1 mm.

[0012] Optionally, the ball head is interference fit with the spherical groove.

[0013] Optionally, the diameter of the rubber ball cap gradually decreases from the outer end surface to the inner end surface.

[0014] Optionally, a circle of protective bosses is provided on the periphery of the socket, the protective bosses are clearance-matched with the rubber ball cap, and the clearance between the protective bosses and the rubber ball cap is smaller than the clearance between the annular groove and the annular convex ring in the radial direction.

[0015] The embodiments of the utility model have the following beneficial effects: the rubber ball cap is plugged into and installed on the mounting seat, and is snap-fitted with the annular groove and the annular convex ring. The annular groove and the annular convex ring have an interference fit in the axial direction, which can effectively reduce the vibration transmitted from the base component, and have a clearance fit in the radial direction, which can effectively reduce the contact wear between the rubber ball cap and the mounting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of the assembly state of the embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure in which the rubber ball cap is inserted into the mounting seat in the embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the mounting base in the embodiment of the utility model;

[0020] Figure 4 It is a cross-sectional view of the rubber ball cap in the embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the ball stud in the embodiment of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the protective boss in the embodiment of the utility model;

[0023] The numbers in the figure represent:

[0024] 1. Mounting seat; 11. Baffle; 12. Insertion cavity; 13. Annular convex ring; 14. Protective boss;

[0025] 2. Rubber ball cap; 21. Annular groove; 22. Spherical groove;

[0026] 3. ball stud; 31. ball head; 32. bolt part;

[0027] 4. Assembled parts;

[0028] 5. Base components. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0030] See also Figure 1-Figure 5 As shown, an embodiment of the utility model provides a ball cap mounting structure for a ball stud, comprising a mounting seat 1, a rubber ball cap 2 and a ball stud 3. One end of the mounting seat 1 is fixedly connected to the assembled component 4, and the other end of the mounting seat 1 is separated by a baffle 11 to form an insertion cavity 12, and the outer end surface of the insertion cavity 12 is provided with a socket for inserting the rubber ball cap 2, and the inner edge of the socket is formed with an annular convex ring 13. The rubber ball cap 2 is inserted and installed in the insertion cavity 12, and the outer side wall of the rubber ball cap 2 is correspondingly provided with an annular groove 21 for snap-fitting with the annular convex ring 13, so that the rubber ball cap 2 can be snap-fitted with the mounting seat 1 through the annular convex ring 13 and the annular groove 21 to prevent the rubber ball cap 2 from falling off.

[0031] The outer end surface of the rubber ball cap 2 is provided with a spherical groove 22. For reference, the diameter of the rubber ball cap 2 in the embodiment of the utility model gradually decreases from the outer end surface to the inner end surface (i.e., the cross section of the rubber ball cap 2 is a trapezoid). The two ends of the ball stud 3 are respectively provided with a ball head 31 and a bolt part 32, wherein the bolt part 32 is fixedly connected to the base member 5, and the ball head 31 is inserted into the spherical groove 22, and preferably has an interference fit with the spherical groove 22.

[0032] It is worth noting that the annular groove 21 and the annular bead 13 are clearance-matched in the radial direction, and the single-sided clearance between the two can be more than 1mm to reduce the contact wear between the rubber ball cap 2 and the mounting seat 1. The annular groove 21 and the annular bead 13 are interference-fitted in the axial direction, and the interference is generally more than 0.2mm, and the vibration transmitted from the base component 5 is effectively reduced by the elastic resistance in the axial direction. There needs to be a certain gap between the inner end surface of the rubber ball cap 2 and the baffle 11, and the gap can be set to 0.2mm, 0.5mm, etc. according to the vibration of the ball stud 3, so as to ensure that the ball stud 3 has a certain amount of activity in the axial direction to reduce the vibration transmitted from the base component 5.

[0033] Further, such as Figure 6 As shown, a circle of protective bosses 14 can also be set on the periphery of the socket, and the protective bosses 14 are clearance-matched with the rubber ball cap 2, and the clearance between the protective bosses 14 and the rubber ball cap 2 is smaller than the clearance between the annular groove 21 and the annular convex ring 13 in the radial direction (the former is generally about 1 / 2 of the latter). In this way, when the rubber ball cap 2 moves under the vibration impact of the ball head bolt 3, the outer edge of the rubber ball cap 2 can first collide with the protective bosses 14, thereby further avoiding wear caused by contact between the annular groove 21 and the annular convex ring 13.

[0034] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present invention. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ball cap mounting structure for a ball stud, characterized in that: include: A mounting seat, one end of which is fixedly connected to the assembled component, and the other end of which is separated by a baffle to form an insertion cavity; A rubber ball cap is inserted into the insertion cavity, a spherical groove is provided on the outer end surface of the rubber ball cap, and a certain gap is formed between the inner end surface of the rubber ball cap and the baffle; A ball stud, wherein two ends of the ball stud are respectively provided with a ball head and a bolt part, the ball head is inserted into the spherical groove, and the bolt part is fixedly connected to the base component; Among them, the outer end surface of the plug-in cavity is provided with a socket for inserting the rubber ball cap, the inner edge of the socket is formed with an annular convex ring, and the outer side wall of the rubber ball cap is correspondingly provided with an annular groove, the annular groove is snap-fitted with the annular convex ring, and the annular groove and the annular convex ring are interference fit in the axial direction and clearance fit in the radial direction.

2. The ball cap mounting structure of a ball stud according to claim 1, characterized in that: The interference between the annular groove and the annular convex ring in the axial direction is greater than 0.2 mm.

3. The ball cap mounting structure of a ball stud according to claim 1, characterized in that: The single-side clearance between the annular groove and the annular convex ring in the radial direction is greater than 1 mm.

4. The ball cap mounting structure of a ball stud according to claim 1, characterized in that: The ball head is interference fit with the spherical groove.

5. The ball cap mounting structure of a ball stud according to claim 1, characterized in that: The diameter of the rubber ball cap gradually decreases from the outer end surface to the inner end surface.

6. A ball cap mounting structure for a ball stud according to any one of claims 1 to 5, characterized in that: A circle of protective bosses is arranged on the periphery of the socket, and the protective bosses are clearance-matched with the rubber ball cap, and the clearance between the protective bosses and the rubber ball cap is smaller than the clearance between the annular groove and the annular convex ring in the radial direction.

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