CN220770142U - Wave-shaped sealing ring - Google Patents

Abstract

The utility model relates to the technical field of sealing rings, in particular to a waveform sealing ring. The utility model provides a wave-shaped sealing ring, comprising: the inner side of the sealing ring body is provided with a waveform inner ring; the outer side of the sealing ring body is provided with a waveform outer ring; an upper contact ring is arranged at the top of the sealing ring body; the bottom of the sealing ring body is provided with a circular groove, and the circular groove is internally provided with a lower contact ring; an elastic piece is used in the sealing ring body; the metal bars are annularly arranged in the sealing ring body at uniform intervals. The contact area between the sealing ring and the mounting groove is increased through the upper contact ring, the contact area between the waveform inner ring and the outer side of the shaft is reduced, the shaft is prevented from rotating to drive the sealing ring to deform, the metal rod and the elastic piece in the sealing ring body are equivalent to the framework of the sealing ring, and the transverse deformation degree of the sealing ring can be reduced.

Description

Wave-shaped sealing ring

Technical Field

The utility model relates to the technical field of sealing rings, in particular to a waveform sealing ring.

Background

In an automatic transmission, a continuously variable transmission, or the like of a vehicle, a seal ring is generally used to seal between a shaft and a shaft hole into which the shaft is inserted, and the seal ring is generally mounted in a mounting groove of a housing so as to be in contact with a side surface of the groove and an inner peripheral surface of the shaft hole, thereby sealing a space between the shaft and the shaft hole and maintaining hydraulic pressure of hydraulic oil between the shaft and the shaft hole.

However, in the current sealing ring in the actual use process, when the shaft is driven to rotate, the outer peripheral surface of the sealing ring is pressed on the inner peripheral surface of the groove, the sealing ring does not slide relative to the side surface of the groove, and slides relative to the shaft, if the sealing ring is installed, the static friction of the installation position to the sealing ring is too large, the sealing ring is easily driven to deform when the shaft rotates, and the sealing effect is poor or even fails.

Disclosure of Invention

In order to overcome the defect that the mounting position is too large in static friction on the sealing ring, the sealing ring is easy to drive to deform when the shaft rotates, so that the sealing effect is poor and even fails. The technical problem of the present utility model is that: a wave seal ring is provided.

The technical scheme is as follows: a wave seal ring comprising: the inner side of the sealing ring body is provided with a waveform inner ring; the outer side of the sealing ring body is provided with a waveform outer ring; an upper contact ring is arranged at the top of the sealing ring body; the bottom of the sealing ring body is provided with a circular groove, and the circular groove is internally provided with a lower contact ring; an elastic piece is arranged in the sealing ring body; the metal bars are annularly arranged in the sealing ring body at uniform intervals.

Furthermore, it is particularly preferred that the lower contact ring is physically harder and less deformable than the seal ring itself.

Furthermore, it is particularly preferred that the number of waveforms of the waveform inner ring is large and dense.

Furthermore, it is particularly preferred that the elastic element and the metal rod are embedded in the sealing ring body.

The utility model has the advantages that: when the sealing ring is used, the contact area between the sealing ring and the mounting groove is increased through the upper contact ring, the lower contact ring simultaneously faces the outer side of the mounting groove, the bottom of the sealing ring body is prevented from being driven to rotate by friction, the contact area between the corrugated inner ring and the outer side of the shaft is reduced, the shaft is prevented from rotating to drive the sealing ring to deform, the metal rod in the sealing ring body and the elastic piece are equivalent to the framework of the sealing ring, the transverse deformation degree of the sealing ring can be reduced, and the auxiliary sealing ring is restored to be original shape.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic cross-sectional view of a portion of a three-dimensional structure of the present utility model.

Fig. 3 is an exploded view of a partial perspective structure of the present utility model.

Wherein the above figures include the following reference numerals: 1. the sealing ring comprises a sealing ring body, 2, a waveform inner ring, 3, a waveform outer ring, 4, an upper contact ring, 5, a lower contact ring, 6, an elastic piece, 7 and a metal rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1 to 3, the utility model provides a waveform sealing ring, which specifically comprises a sealing ring body 1, a waveform inner ring 2, a waveform outer ring 3, an upper contact ring 4, a lower contact ring 5, an elastic piece 6 and a metal rod 7, wherein the waveform inner ring 2 is arranged on the inner side of the sealing ring body 1, the waveform outer ring 3 is arranged on the outer side of the sealing ring body 1, the waveform inner ring 2, the waveform outer ring 3 and the sealing ring body 1 are the same in material, the top of the sealing ring body 1 is provided with an upper contact ring 4 tilted upwards, the bottom of the sealing ring body 1 is provided with a circular groove, the circular groove is internally provided with the lower contact ring 5, the lower contact ring 5 is provided with a plurality of annular lines, the inside of the sealing ring body 1 is provided with the elastic piece 6, the inside of the sealing ring body 1 is uniformly and annularly provided with a plurality of metal rods 7 at intervals, and the metal rods are positioned on the inner side of the elastic piece 6.

In the utility model, when in installation, a worker installs the upper contact ring 4 of the seal ring body 1 towards the inside of the installation groove, the upper contact ring 4 is extruded by the inner wall of the installation groove in the installation process to enlarge the contact area between the seal ring and the installation groove, so that the lower contact ring 5 with annular lines at the bottom faces the outside of the installation groove, the bottom of the seal ring body 1 is prevented from being driven to rotate by friction, the waveform inner ring 2 is contacted with the outer side of the shaft, the side wall of the waveform enables the seal ring to be contacted with the rotating shaft from surface to line, the contact area between the seal ring and the rotating shaft is reduced, the waveform outer ring 3 is shaped to enable the seal ring to recover to be original shape more easily after the seal ring is extruded, the metal rod 7 and the elastic piece 6 in the seal ring body 1 are equivalent to the framework of the seal ring, the transverse deformation degree of the seal ring can be reduced, and the seal ring is assisted to recover to original shape.

Example 2

As shown in fig. 2, the lower contact ring 5 in embodiment 1 has a harder texture than the seal ring body 1 and is not easy to deform, the number of the waveforms of the waveform inner ring 2 is large and dense, and the elastic member 6 and the metal rod 7 are embedded in the seal ring body 1.

When using, the lower contact ring 5 that the constitution is harder and be difficult for deformation can be better replace sealing washer body 1 part to contact with rotatory part in meeting, can effectually prolong the life of sealing washer, and the waveform of waveform inner ring 2 is comparatively intensive, can guarantee better leakproofness under the circumstances of reducing the frictional force between sealing washer and the rotation axis, in the rotatory in-process, metal bar 7 and elastic component 6 and sealing washer body 1 in close contact can better reach the effect that reduces the horizontal deformation degree of sealing washer and supplementary sealing washer resumes, avoid the sealing washer to take place to produce great cavity after deformation, influence result of use.

It should be understood that this example is only illustrative of the utility model and is not intended to limit the scope of the utility model. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present utility model, and such equivalents are intended to fall within the scope of the claims appended hereto.

Claims (4)

1. A wave seal ring, comprising:

the inner side of the sealing ring body (1) is provided with a waveform inner ring (2);

the outer side of the sealing ring body (1) is provided with a waveform outer ring (3);

an upper contact ring (4), wherein the top of the sealing ring body (1) is provided with the upper contact ring (4);

a lower contact ring (5), a round groove is formed at the bottom of the sealing ring body (1), and the lower contact ring (5) is arranged in the round groove;

an elastic piece (6), wherein the elastic piece (6) is arranged in the sealing ring body (1);

the metal rods (7) are annularly arranged in the sealing ring body (1) at uniform intervals, and a plurality of metal rods (7) are arranged in the sealing ring body.

2. A wave seal ring according to claim 1, characterized in that the lower contact ring (5) is harder and less deformable than the seal ring body (1).

3. A wave seal ring according to claim 1, characterized in that the wave form of the wave form inner ring (2) is more numerous and dense.

4. A wave seal ring according to claim 1, characterized in that the elastic element (6) and the metal rod (7) are embedded in the seal ring body (1).