CN212667291U

CN212667291U - Ball cage dust cover

Info

Publication number: CN212667291U
Application number: CN202021620926.8U
Authority: CN
Inventors: 陈建琴
Original assignee: Yuhuan Kaichao Plastic Machinery Manufacturing Co ltd
Current assignee: Yuhuan Kaichao Plastic Machinery Manufacturing Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-03-09
Anticipated expiration: 2030-08-07

Abstract

The utility model provides a ball cage dust cover belongs to auto-parts technical field. The ball cage dust cover solves the problems that the existing ball cage dust cover is inconvenient to add lubricating grease, and the sealing performance is not ideal enough. This ball cage dust cover is including the body that is the tube-shape, and the upper end shrink of body is in order to form the link, and the lower extreme of body is lower link, and the middle part of body has the additional strengthening of reinforcing structural strength, and the outer wall that the body is close to lower link has the connecting portion of radial evagination, and connecting portion radially link up there is the tank filler sleeve, and connecting portion are connected with the shutoff piece with the tank filler sleeve shutoff. The utility model has the advantages of high structural strength, good sealing performance, convenience in adding lubricating grease and the like.

Description

Ball cage dust cover

Technical Field

The utility model belongs to the technical field of auto-parts, a ball cage accessory is related to, in particular to ball cage dust cover.

Background

The ball cage is also called as a ball pin, is one of the most important parts in an automobile suspension system, mainly bears the load transfer and steering action in the automobile driving process, and plays a key role in the operation stability, driving smoothness and safety of the automobile.

For example, chinese patent document discloses a ball stud assembly [ application No.: 201620315425.6, respectively; authorization notice number: CN205524454U ], which comprises a ball seat, a ball pin, a ball cup and a dust cover, wherein the ball seat is provided with a spherical groove, the ball cup is located in the spherical groove, the ball head of the ball pin is arranged in the ball cup, the lower end of the dust cover is fixed on the ball seat through a clamping ring, the rod of the ball pin extends out of the dust cover, and the inner surface of the ball cup is fixedly connected with a glass fiber layer which is in a bowl shape and wraps the ball head.

Foretell bulb round pin assembly passes through the setting of dust cover, has dustproof and waterproof's effect, has prolonged life, but dust cover structural strength is not good, and the easy landing in dust cover upper end just is difficult for reseing, influences the leakproofness, and the dust cover does not possess the additive lubricating oil function moreover, leads to the lubricated not enough and produces the problem of loose spacious abnormal sound of ball round pin.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a structural strength height, leakproofness well and add the convenient ball cage dust cover of lubricating grease.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a ball cage dust cover, is including the body that is the tube-shape, the upper end shrink of body in order to form the link, the lower extreme of body is lower link, its characterized in that, the middle part of body reinforced structure that has reinforcing structure intensity, the body be close to the outer wall of link down and have the connecting portion of radial evagination, connecting portion radially link up there is the tank filler sleeve, connecting portion be connected with the shutoff piece with the tank filler sleeve shutoff.

In an above-mentioned ball cage dust cover, additional strengthening include that body middle part inner wall has a plurality of circumference equipartitions and the strengthening rib of axial extension.

As another aspect, in the foregoing ball cage dust cover, the reinforcing structure includes a cylindrical metal sheet wrapped around the middle of the main body. The metal sheet increases the structural strength of the middle part of the body, avoids the upper connecting end from sliding off, and also provides enough restoring force, so that the upper connecting end which slides off under the action of gravity resets.

In foretell ball cage dust cover, the shutoff piece be the fuel filler nozzle, connecting portion bond link firmly be located the intraoral nut of fuel filler hole outer end orifice, fuel filler nozzle and nut threaded connection.

In the ball cage dust cover, the inner wall of the upper connecting end is provided with a plurality of rings of sealing rings which are inwards convex in the radial direction.

In the ball cage dust cover, the bottom edge of the inner wall of the upper connecting end is provided with a circle of convex ring which is integrally formed.

In the ball cage dust cover, the bottom of the lower connecting end is coated with an annular metal ring, and the inner wall of the metal ring is provided with a turned-over edge which is turned over and supported in the middle of the lower connecting end.

In an above-mentioned ball cage dust cover, the outer wall between last link and lower link all have a round annular groove.

Compared with the prior art, the ball cage dust cover has the advantages of high structural strength, good sealing property, good working stability and long service life.

Drawings

Fig. 1 is a structural sectional view of the cage dust cover.

Fig. 2 is an enlarged view of a portion a of fig. 1.

In the figure, 1, a body; 2. an upper connection end; 3. a lower connecting end; 4. a connecting portion; 5. an oil filling hole; 6. reinforcing ribs; 7. a fuel filler nozzle; 8. a nut; 9. a seal ring; 10. a convex ring; 11. a metal ring; 111. flanging; 12. an annular groove.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figure 1, the ball cage dust cover comprises a cylindrical body 1, the upper end of the body 1 contracts to form an upper connecting end 2, the lower end of the body 1 is a lower connecting end 3, the middle of the body 1 is provided with a reinforcing structure for enhancing structural strength, the outer wall of the body 1 close to the lower connecting end 3 is provided with a radially outwards convex connecting part 4, an oil filling hole 5 is radially communicated with the connecting part 4, and the connecting part 4 is connected with a plugging piece for plugging the oil filling hole 5.

The ball cage dust cover increases the structural strength of the middle part of the body 1 through the reinforcing structure, has good supporting effect on the upper connecting end 2 of the body 1, avoids the upper connecting end 2 from sliding off, and provides enough restoring force to reset the upper connecting end 2 even if the upper connecting end 2 slides off under the action of heavy pressure, thereby ensuring the sealing property; through the setting of tank filler hole 5 and shutoff piece, be convenient for to adding lubricating grease in the body 1, guaranteed that the ball round pin department that the cover was established in the body 1 has sufficient lubricity, prolonged life.

Further saying, the reinforced structure includes that 1 middle part inner wall of body has a plurality of circumference equipartitions and the strengthening rib 6 of axial extension in this embodiment, and strengthening rib 6 has increased the structural strength of 1 middle part department of body, and the axial support is effectual, effectively avoids going up 2 landing of link, has also provided sufficient restoring force to make the last link 2 of the landing of atress reset.

The plugging piece is an oil filling nozzle 7, the connecting part 4 is fixedly connected with a nut 8 positioned in an orifice at the outer end of the oil filling hole 5 in a bonding mode, and the oil filling nozzle 7 is in threaded connection with the nut 8. The oil filling nozzle 7 is in the prior art, and is internally provided with a steel ball for check; lubricating grease is added into the body 1 through the oil filling nozzle 7, operation is convenient, the oil filling nozzle 7 has a one-way function, and the lubricating grease in the body 1 is prevented from overflowing.

As shown in fig. 2, the inner wall of the upper connecting end 2 is provided with three rings of sealing rings 9 which are protruded inwards in the radial direction, so that a plurality of sealing performances are formed, and the sealing performance of the upper connecting end 2 is good; go up 2 inner walls of link base department and have round integrated into one piece and convex bulge loop 10, bulge loop 10 plays sealedly, has improved the sealed effect of last link 2, and bulge loop 10 has increased the structural strength who goes up 2 inner walls of link base departments moreover, has also increased the area of contact with the ball round pin, has increased frictional force, effectively avoids going up link 2 landing.

The bottom of the lower connecting end 3 is coated with an annular metal ring 11, the inner wall of the metal ring 11 is provided with a turned-over edge 111 which is turned over and supported in the middle of the lower connecting end 3, the metal ring 11 increases the structural strength of the lower connecting end 3, and the lower connecting end 3 is not easy to loosen after being connected; go up link 2 and lower link 3 outer wall between them and all have a round annular groove 12, annular groove 12 supplies the jump ring to inlay and establishes the location for the connection steadiness of going up link 2 and lower link 3 is good.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a ball cage dust cover, is including body (1) that is the tube-shape, the upper end shrink of body (1) in order to form link (2), the lower extreme of body (1) is link (3) down, its characterized in that, the middle part of body (1) reinforced structure that has reinforcing structure intensity, body (1) outer wall that is close to link (3) down have connecting portion (4) of radial evagination, connecting portion (4) radially link up and have tank filler hole (5), connecting portion (4) be connected with the shutoff piece with tank filler hole (5) shutoff.

2. The ball cage dust cover according to claim 1, wherein the reinforcing structure comprises a plurality of reinforcing ribs (6) which are circumferentially and uniformly distributed and axially extend on the inner wall of the middle part of the body (1).

3. The ball cage dust cover according to claim 1, wherein the reinforcing structure comprises a cylindrical metal sheet wrapped around the middle of the body (1).

4. The ball cage dust cover according to claim 1, 2 or 3, wherein the blocking member is a filler neck (7), the connecting portion (4) is fixedly connected with a nut (8) positioned in an orifice at the outer end of the filler neck (5) in an adhering manner, and the filler neck (7) is in threaded connection with the nut (8).

5. A ball cage dust cover according to claim 4, characterized in that the inner wall of the upper connecting end (2) is provided with a plurality of rings of radially inwardly protruding sealing rings (9).

6. A ball cage dust cover according to claim 5, characterized in that the bottom edge of the inner wall of the upper connecting end (2) is provided with a ring of integrally formed and protruding convex ring (10).

7. The ball cage dust cover according to claim 6, wherein the bottom of the lower connecting end (3) is coated with a ring-shaped metal ring (11), and the inner wall of the metal ring (11) is provided with a turned-over edge (111) which is turned over and supported in the middle of the lower connecting end (3).

8. A ball cage dust cover according to claim 7, characterized in that the outer walls of both the upper connecting end (2) and the lower connecting end (3) are provided with a ring-shaped groove (12).