Novel automobile lower suspension ball joint of dust cover

Abstract

The utility model discloses an automobile lower suspension ball joint with a novel dust cover, which comprises a ball seat, a ball pin and a ball body, the ball body is positioned in the ball seat, a sealing cover is arranged at the top of the ball seat, an avoiding through hole is formed in the center of the sealing cover, and the ball pin is arranged in the avoiding through hole in a penetrating manner; a dustproof cover is further arranged on the upper portion of the ball seat, a buckle groove hole is formed in the outer wall of the ball seat, and a horn-shaped protruding edge expanding outwards is fixed to the upper portion of the sealing cover. An n-shaped abutting groove is formed in the upper portion of the inner wall of the dustproof cover. The lower portion of the dustproof cover is clamped in the buckle groove hole and positioned through the clamp, and the top edge of the horn-shaped protruding edge abuts against the n-shaped abutting groove to be limited. The structure is reasonable in arrangement, the n-shaped abutting groove is formed in the inner wall of the dust cover, the horn-shaped convex edge is fixed to the sealing cover, the ball seat and the sealing cover are connected with the dust cover, the sealing performance of the connecting position can be improved, the axial load resisting capacity of the dust cover can be improved, the dust prevention performance can be improved, and applicability and practicability are high.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile ball joints, and in particular relates to a new automobile lower suspension ball joint with a dust cover. Background Art

[0002] The status of cars is becoming more and more irreplaceable, and it has become the most widely used means of transportation at this stage. The development of cars has also made great achievements in recent years. The ball head of the car suspension arm is the most common and basic part of the car. It mainly plays a longitudinal and lateral transmission role in the suspension arm. The smooth sliding between the ball pin and the ball seat is the basic condition to ensure the normal use of the ball head.

[0003] Although there are many types of ball pin seats for automobile suspension arms on the market, they generally have corresponding dust covers to improve their dustproof performance. However, the existing dust covers have weak axial load resistance, which can easily lead to excessive axial deformation, resulting in excessive damping of the rotation of the ball pin and interference. For special models such as pickup trucks, the core shaft can only rotate circumferentially. Ordinary dust covers cannot meet the design requirements, which affects the working performance of the entire suspension system, and thus the applicability and practicality are limited. Summary of the invention

[0004] The utility model aims to provide a new automobile lower suspension ball joint with a dustproof cover which has a reasonable structure and strong dustproof performance.

[0005] The technical solution to achieve the purpose of the utility model is a new type of dust cover automobile lower suspension ball joint, including a ball seat, a ball pin and a ball, the ball pin is fixed on the ball, and the ball is in the ball seat, the top of the ball seat is provided with a cover, the center of the cover is provided with a position avoidance through hole, and the ball pin is inserted into the position avoidance through hole;

[0006] A dust cover is also provided on the upper part of the ball seat, and the outer wall of the ball pin is attached to the upper part of the dust cover;

[0007] A buckle slot is provided on the outer wall of the ball seat, and a trumpet-shaped convex edge extending outward is fixed on the upper part of the cover;

[0008] The upper part of the inner wall of the dust cover is provided with an n-shaped retaining groove;

[0009] The lower part of the dust cover is clamped in the buckle slot and positioned by the clamp ring, and the top edge of the trumpet-shaped convex edge is pressed into the n-shaped pressing groove for limiting position.

[0010] It is further preferred that: a support body is provided on the bottom wall of the inner cavity of the ball seat;

[0011] The bottom surface of the sphere abuts against the top surface of the support body;

[0012] The space between the ball seat and the ball body is filled with lubricating grease.

[0013] It is further preferred that: a pressing ring groove is provided on the upper portion of the inner wall of the ball seat;

[0014] The edge of the sealing cover is wrapped with a sealing gasket, and the sealing cover is clamped into the pressing ring groove through the sealing gasket for positioning.

[0015] Further preferably, the ball pin is a truncated cone-shaped pin body with a small top end and a large bottom end.

[0016] More preferably, the dust cover is a neoprene cover.

[0017] It is further preferred that a slotted nut is provided at the top end of the ball pin.

[0018] The utility model has positive effects: the structure of the utility model is reasonably arranged, and an n-shaped retaining groove is arranged on the inner wall of the dust cover. At the same time, a trumpet-shaped convex edge is fixed on the cover, which is connected to the dust cover through a ball seat and the cover respectively, which is beneficial to improving the sealing of the connection, and can also increase the axial load resistance of the dust cover, which is beneficial to improving the dustproof performance, and has strong applicability and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein:

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the dust cover in the utility model.

[0023] Figure numerals: ball seat 1, ball pin 2, sphere 3, cover 4, dust cover 5, snap-fit ​​slot 6, trumpet-shaped flange 7, n-shaped abutment slot 8, clamping ring 9, support body 10, lubricating grease 11, pressure ring groove 12, slotted nut 13. DETAILED DESCRIPTION

[0024] 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, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example

[0026] See Figures 1 to 3 As shown, a new type of dustproof cover for a car undersuspension ball joint includes a ball seat 1, a ball pin 2 and a ball 3. The ball pin is fixed on the ball, and the ball is in the ball seat. A cover 4 is provided on the top of the ball seat. A position-avoiding through hole is provided in the center of the cover. The ball pin is inserted into the position-avoiding through hole. In this embodiment, the ball pin is a truncated cone-shaped pin with a small top and a large bottom. A slotted nut 13 is provided on the top of the ball pin. The above structures are all conventional structures of the prior art and are simply applied, so they are not recorded in detail.

[0027] At the same time, in the actual application process, a dust cover 5 is also provided on the upper part of the ball seat, and the dust cover is a chloroprene rubber cover. The outer wall of the ball pin is fitted on the upper part of the dust cover; a snap slot 6 is provided on the outer wall of the ball seat, and a trumpet-shaped convex edge 7 that expands outward is fixed on the upper part of the cover; an n-shaped retaining groove 8 is provided on the upper part of the inner wall of the dust cover; the lower part of the dust cover is clamped in the snap slot and positioned by a clamp ring 9, and the top edge of the trumpet-shaped convex edge is pressed into the n-shaped retaining groove for limiting position. In this embodiment, through the above structure, not only the dust cover is connected to the ball seat, but also the cover is connected to the dust cover through the trumpet-shaped convex edge, which is beneficial to improving the dustproof performance, and can also increase the dust cover's ability to resist axial loads, and has strong practicality.

[0028] A support body 10 is arranged on the bottom wall of the inner cavity of the ball seat; the bottom surface of the ball abuts against the top surface of the support body; and lubricating grease 11 is filled between the ball seat and the ball. The cross section of the support body is an I-shaped arrangement, and the lubricating grease is mainly used to increase the lubrication performance, so that the ball and the ball seat can move more smoothly.

[0029] The upper inner wall of the ball seat is provided with a pressing ring groove 12; the edge of the cover is wrapped with a sealing gasket, and the cover is inserted into the pressing ring groove for positioning through the sealing gasket. The above structure can increase the sealing performance of the connection between the ball seat and the cover.

[0030] The utility model has positive effects: the structure of the utility model is reasonably arranged, and an n-shaped retaining groove is arranged on the inner wall of the dust cover. At the same time, a trumpet-shaped convex edge is fixed on the cover, which is connected to the dust cover through a ball seat and the cover respectively, which is beneficial to improving the sealing of the connection, and can also increase the axial load resistance of the dust cover, which is beneficial to improving the dustproof performance, and has strong applicability and good practicality.

[0031] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification can also be directly processed according to existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0032] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still belong to the protection scope of the present invention.

Claims

1. A new type of automobile lower suspension ball joint with a dust cover, comprising a ball seat, a ball pin and a ball, wherein the ball pin is fixed on the ball, and the ball is located in the ball seat, characterized in that: A cover is provided on the top of the ball seat, a position-avoiding through hole is provided at the center of the cover, and the ball pin is inserted into the position-avoiding through hole; A dust cover is also provided on the upper part of the ball seat, and the outer wall of the ball pin is attached to the upper part of the dust cover; A buckle slot is provided on the outer wall of the ball seat, and a trumpet-shaped convex edge extending outward is fixed on the upper part of the cover; An n-shaped retaining groove is provided on the upper part of the inner wall of the dust cover; The lower part of the dust cover is clamped in the buckle slot and positioned by the clamp ring, and the top edge of the trumpet-shaped convex edge is pressed into the n-shaped pressing groove for limiting position.

2. The new type of automobile lower suspension ball joint with dust cover according to claim 1 is characterized by: A support body is provided on the bottom wall of the inner cavity of the ball seat; The bottom surface of the sphere abuts against the top surface of the support body; The space between the ball seat and the ball body is filled with lubricating grease.

3. The new type of automobile lower suspension ball joint with dust cover according to claim 2 is characterized by: A pressing ring groove is provided on the upper part of the inner wall of the ball seat; The edge of the sealing cover is wrapped with a sealing gasket, and the sealing cover is clamped into the pressing ring groove through the sealing gasket for positioning.

4. The new type of automobile lower suspension ball joint with dust cover according to claim 3 is characterized by: The ball pin is a truncated cone-shaped pin body with a small top end and a large bottom end.

5. The novel automobile lower suspension ball joint with dust cover according to claim 4 is characterized by: The dust cover is a neoprene cover body.

6. The new type of automobile lower suspension ball joint with dust cover according to claim 1 is characterized by: A slotted nut is arranged on the top end of the ball pin.

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