CN215634973U - Improved multi-stage framework seal - Google Patents

Abstract

The utility model discloses an improved multi-stage framework seal, which comprises a rubber ring; the outer wall of the circumferential surface of the rubber ring is provided with a first rubber ring; the circumferential surface of the inner wall of the rubber ring is provided with a second rubber ring; the framework mechanism comprises a first annular framework, reinforcing ribs and a second annular framework, the first annular framework is arranged inside the first rubber ring, the second annular framework is arranged inside the rubber ring, the bottom of the first annular framework is connected with one end of the second annular framework, and the surfaces of the first annular framework and the second annular framework are provided with a plurality of reinforcing ribs; the utility model effectively solves the problems that the framework oil seal is knocked and deformed due to overlarge knocking force in the process of knocking the framework seal into the mounting hole and the use requirement is not met.

Description

Improved multi-stage framework seal

Technical Field

The utility model relates to the technical field of framework sealing, in particular to an improved multi-stage framework seal.

Background

The framework seal is also called a framework oil seal, the framework oil seal is a typical representative of the oil seal, the oil seal generally refers to the framework oil seal, the oil seal is generally used for isolating parts needing to be lubricated in a transmission part from the external environment and preventing lubricating oil from leaking, the framework is just like a steel bar inside a concrete member, the reinforcing effect is achieved, the oil seal can keep the shape and the tension, and external dust, impurities and the like are prevented from entering the machine.

However, there are some disadvantages in the conventional using process, such as:

in the process of knocking the framework seal into the mounting hole, the condition that the framework oil seal is knocked to deform due to overlarge knocking force often occurs, and the use requirement is not met.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to provide an improved multi-stage skeletal seal that addresses the problems set forth in the background above.

In order to achieve the purpose, the utility model provides the following technical scheme: comprises a rubber ring; the outer wall of the circumferential surface of the rubber ring is provided with a first rubber ring; the circumferential surface of the inner wall of the rubber ring is provided with a second rubber ring; the framework mechanism comprises a first annular framework, reinforcing ribs and a second annular framework, the first annular framework is arranged inside the first rubber ring, the second annular framework is arranged inside the rubber ring, the bottom of the first annular framework is connected with one end of the second annular framework, and the surfaces of the first annular framework and the second annular framework are provided with a plurality of reinforcing ribs; and the second spring is arranged at the center of the circumferential surface of the second rubber ring.

Wherein, first annular skeleton, stiffening rib and second annular skeleton formula structure as an organic whole, and the contained angle between first annular skeleton and the second annular skeleton is 90 degrees.

And the volume of the second spring positioned in the second rubber ring is more than two thirds of the volume of the second spring.

Wherein, first rubber ring, rubber circle and second rubber ring formula structure as an organic whole.

The outer wall surface of the first rubber ring is provided with a plurality of convex rings, and the convex rings and the first rubber ring are of an integrally formed structure.

Wherein, the convex ring and the reinforcing rib on the surface of the first rubber ring are positioned on the same central line in the horizontal direction.

And a sealing lip is arranged on one side, away from the second spring, of the second rubber ring.

The sealing lip comprises an annular sleeve, a first spring and a reinforcing column, the annular sleeve is arranged at each of two ends of one side, away from the second spring, of the second rubber ring, the reinforcing column is fixedly welded to the inner wall of the annular sleeve and the side, adjacent to the second rubber ring, of the inner wall of the annular sleeve, and a plurality of first springs are arranged between the surface of the reinforcing column and the inner wall of the annular sleeve.

Wherein the cross section of the reinforcing column is semicircular, and the first springs are uniformly distributed on the circumferential surface of the reinforcing column at equal intervals in an annular array.

And the annular sleeve is connected with the second rubber ring by hot melting.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the bulk strength of first annular skeleton, the increase of second annular skeleton first rubber ring and rubber circle, keep first rubber ring and rubber circle shape and tension, can increase the bulk strength of first annular skeleton and second annular skeleton through the stiffening rib to further improve the bulk strength that this skeleton is sealed, the effectual skeleton oil blanket that leads to is strikeed the deformation because the power of strikeing is too big the condition appearance, satisfies the user demand.

2. Set up two seal lips in the inboard of second rubber ring, make its sealed effect better to under the mating reaction of first spring and reinforcing post, make the laminating of annular cover and external part, make its sealed effect better, it is more stable.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the structure of the sealing lip of the present invention.

In the figure: 1. a first rubber ring; 2. a skeleton mechanism; 21. a first annular skeleton; 22. reinforcing ribs; 23. a second annular skeleton; 3. a convex ring; 4. a rubber ring; 5. a sealing lip; 51. an annular sleeve; 52. a first spring; 53. a reinforcement column; 6. a second spring; 7. a second rubber ring.

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.

Referring to fig. 1-2, the present invention provides a technical solution: comprises a rubber ring 4; the outer wall of the circumferential surface of the rubber ring 4 is provided with a first rubber ring 1; the circumferential surface of the inner wall of the rubber ring 4 is provided with a second rubber ring 7; the framework mechanism 2 comprises a first annular framework 21, reinforcing ribs 22 and a second annular framework 23, the first annular framework 21 is arranged inside the first rubber ring 1, the second annular framework 23 is arranged inside the rubber ring 4, the bottom of the first annular framework 21 is connected with one end of the second annular framework 23, and the reinforcing ribs 22 are arranged on the surfaces of the first annular framework 21 and the second annular framework 23; and a second spring 6, wherein the second spring 6 is arranged at the center of the circumferential surface of the second rubber ring 7.

The first annular framework 21, the reinforcing rib 22 and the second annular framework 23 are of an integrated structure, the structural strength of the framework mechanism is improved, and an included angle between the first annular framework 21 and the second annular framework 23 is 90 degrees.

The volume of the second spring 6 in the second rubber ring 7 is greater than two-thirds of the volume of the second spring 6, so that the second spring 6 is prevented from being separated from the second rubber ring 7.

Wherein, first rubber ring 1, rubber circle 4 and 7 formula structures as an organic whole of second rubber ring improve this sealed holistic structural strength of skeleton.

Wherein, the outer wall surface of first rubber ring 1 is provided with a plurality of bulge loop 3, and bulge loop 3 and first rubber ring 1 be integrated into one piece's structure, guarantee holistic structural strength.

Wherein, the convex ring 3 and the reinforcing rib 22 on the surface of the first rubber ring 1 are positioned on the same central line in the horizontal direction, so that the supporting force for the convex ring 3 can be enhanced.

And a sealing lip 5 is arranged on one side of the second rubber ring 7, which is far away from the second spring 6, so that the sealing performance is improved.

The sealing lip 5 comprises an annular sleeve 51, a first spring 52 and a reinforcing column 53, the annular sleeve 51 is arranged at each of two ends of one side, away from the second spring 6, of the second rubber ring 7, the reinforcing column 53 is fixedly welded on the inner wall of the annular sleeve 51 and one side, adjacent to the second rubber ring 7, of the annular sleeve 51, the first springs 52 are arranged between the surface of the reinforcing column 53 and the inner wall of the annular sleeve 51, and under the matching action of the first springs 52 and the reinforcing column 53, the annular sleeve 51 is attached to an external part, so that the sealing effect of the sealing lip is better and the sealing lip is more stable.

Wherein the cross section of the reinforcing column 53 is semicircular, and the first springs 52 are uniformly distributed on the circumferential surface of the reinforcing column 53 at equal intervals in an annular array, so that the deformation amount is reduced.

Wherein, the annular sleeve 51 is connected with the second rubber ring 7 by hot melting, and the connection is firm.

The working principle is as follows: during the use, through first annular skeleton 21, second annular skeleton 23 increases the bulk strength of first rubber ring 1 and rubber circle 4, keep first rubber ring 1 and rubber circle 4 shape and tension, can increase the bulk strength of first annular skeleton 21 and second annular skeleton 23 through stiffening rib 22, thereby further improve the sealed bulk strength of this skeleton, the effectual skeleton oil blanket that leads to because the power of striking is too big is strikeed the condition of deformation and is appeared, satisfy the user demand, set up two seal lips 5 in the inboard of second rubber ring 7, make its sealed effect better, and under the mating action of first spring 52 and reinforcing column 53, make annular cover 51 and the laminating of external part, make its sealed effect better, it is more stable.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. An improved multi-stage skeletal seal, comprising:

a rubber ring (4);

the outer wall of the circumferential surface of the rubber ring (4) is provided with the first rubber ring (1);

the circumferential surface of the inner wall of the rubber ring (4) is provided with a second rubber ring (7);

the rubber ring structure comprises a framework mechanism (2), wherein the framework mechanism (2) comprises a first annular framework (21), reinforcing ribs (22) and a second annular framework (23), the first annular framework (21) is arranged inside the first rubber ring (1), the second annular framework (23) is arranged inside the rubber ring (4), the bottom of the first annular framework (21) is connected with one end of the second annular framework (23), and the surfaces of the first annular framework (21) and the second annular framework (23) are provided with a plurality of reinforcing ribs (22);

and the circumferential surface of the second rubber ring (7) is provided with a second spring (6) in the middle.

2. An improved multi-stage skeletal seal as defined in claim 1, wherein: first annular skeleton (21), stiffening rib (22) and second annular skeleton (23) formula structure as an organic whole, and the contained angle between first annular skeleton (21) and second annular skeleton (23) is 90 degrees.

3. An improved multi-stage skeletal seal as defined in claim 1, wherein: the volume of the second spring (6) positioned in the second rubber ring (7) is more than two-thirds of the volume of the second spring (6).

4. An improved multi-stage skeletal seal as defined in claim 1, wherein: the rubber ring is characterized in that the first rubber ring (1), the rubber ring (4) and the second rubber ring (7) are of an integrated structure.

5. An improved multi-stage skeletal seal as defined in claim 1, wherein: the outer wall surface of the first rubber ring (1) is provided with a plurality of convex rings (3), and the convex rings (3) and the first rubber ring (1) are of an integrally formed structure.

6. An improved multi-stage skeletal seal as defined in claim 5, wherein: the convex ring (3) and the reinforcing rib (22) on the surface of the first rubber ring (1) are positioned on the same central line in the horizontal direction.

7. An improved multi-stage skeletal seal as defined in claim 1, wherein: and a sealing lip (5) is arranged on one side, away from the second spring (6), of the second rubber ring (7).

8. An improved multi-stage skeletal seal as defined in claim 7, wherein: the sealing lip (5) comprises an annular sleeve (51), a first spring (52) and a reinforcing column (53), the two ends of one side, away from the second spring (6), of the second rubber ring (7) are respectively provided with the annular sleeve (51), the reinforcing column (53) is fixedly welded on the inner wall of the annular sleeve (51) and one side, adjacent to the second rubber ring (7), of the annular sleeve, and a plurality of first springs (52) are arranged between the surface of the reinforcing column (53) and the inner wall of the annular sleeve (51).

9. An improved multi-stage skeletal seal as defined in claim 8, wherein: the cross section of the reinforcing column (53) is semicircular, and the first springs (52) are uniformly distributed on the circumferential surface of the reinforcing column (53) in an annular array at equal intervals.

10. An improved multi-stage skeletal seal as defined in claim 8, wherein: the annular sleeve (51) is connected with the second rubber ring (7) through hot melting.

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