CN210178914U

CN210178914U - O-shaped ring sealing structure

Info

Publication number: CN210178914U
Application number: CN201921002532.3U
Authority: CN
Inventors: Zhifeng Zhang; 张志峰; Xiaofei Wang; 王晓飞
Original assignee: Chengdu Wanzhong One Core Biotechnology Co ltd
Current assignee: Chengdu Wanzhong One Core Biotechnology Co ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-03-24
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses a O type circle seal structure, include first O type circle, second O type circle and treat mutual sealed first sealing member and second sealing member, be equipped with the boss on the first sealing member, be equipped with the cooperation on the second sealing member the recess of boss, the boss reaches recess matched with contact surface is the inclined plane, first O type circle and second O type circle looks interval ground cover are established on the boss. The utility model discloses a set up first O type circle and second O type circle, boss and recess matched with contact surface all set up to the inclined plane simultaneously for seal structure can realize sealing down less exogenic action or when the dead weight of sealing member reaches certain degree. The sealing element with larger self weight is prevented from applying axial force to the O-shaped ring to compress so as to damage the O-shaped ring; meanwhile, when the O-shaped ring is damaged or deformed in different degrees, the two sealing pieces move relatively under the action of external force or self weight, and the O-shaped ring is continuously compressed to realize sealing.

Description

O-shaped ring sealing structure

Technical Field

The utility model relates to a seal structure technical field, more specifically say, relate to a O type circle seal structure.

Background

O-ring seals are widely used in various fields as common sealing methods, and the most common way to realize O-ring seals is to use external force (such as bolts, threads, etc.) to deform the O-ring pressed between the joint surfaces of the sealed parts, thereby sealing the sealed parts. However, the joint surface adopted by the existing sealing structure is generally a plane, and although the sealing mode can meet the scene with low sealing requirement, the sealing mode can not meet the sealing requirement under the sealing conditions that the sealing requirement is high and the external force is limited; in addition, for a sealed piece which is vertically installed and has large self weight, the risk of crushing the O-shaped ring exists; secondly, after the O-shaped ring is used for a long time, the O-shaped ring can be deformed or damaged in different degrees, at the moment, the sealing is invalid, and the O-shaped ring needs to be replaced.

SUMMERY OF THE UTILITY MODEL

For overcoming the not enough of prior art, the utility model provides a O type circle seal structure relies on less external force or sealing member dead weight to realize sealed, avoids the great sealing member of dead weight to damage O type circle, and simultaneously, the damage or the deformation that different degrees appear in O type circle also can continue to use.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a O type circle seal structure, includes first O type circle, second O type circle and treats mutual sealed first sealing member and second sealing member, be equipped with the boss on the first sealing member, be equipped with the cooperation on the second sealing member the recess of boss, the boss reaches recess matched with contact surface is the inclined plane, first O type circle and second O type circle looks interval ground cover are established on the boss.

Preferably, the boss is provided with two parallel mounting grooves for mounting the first O-ring and the second O-ring.

Preferably, the contact surfaces of the boss and the groove are parallel to each other.

Preferably, the included angle between the longitudinal section of the boss or the groove and the horizontal plane is 20-70 degrees.

Preferably, the depth of the mounting groove is 60% -80% of the cross-sectional diameter of the first O-ring or the second O-ring.

Preferably, the depth of the groove is greater than the height of the boss.

The utility model has the advantages that: through set up first O type circle and second O type circle on the boss at first sealing member, boss and recess matched with contact surface all set up to the inclined plane simultaneously for seal structure not only can realize sealing under less exogenic action, can rely on the dead weight of sealing member to realize sealing even when the dead weight of sealing member reaches certain degree. In addition, because the inclined planes of the lug boss and the groove are arranged, the O-shaped ring realizes compression sealing through the radial force applied by the sealing element, and the phenomenon that the sealing element with larger self weight applies axial force to the O-shaped ring to compress so as to damage the O-shaped ring is avoided; meanwhile, when the O-shaped ring is damaged or deformed in different degrees, the two sealing pieces move relatively under the action of external force or self weight, and the O-shaped ring is continuously compressed to realize sealing. The utility model discloses simple structure, excellent in use effect easily uses widely.

Drawings

Fig. 1 is a schematic structural view of the O-ring sealing structure of the present invention.

Wherein: 1-a first O-shaped ring, 2-a second O-shaped ring, 3-a first sealing element, 4-a second sealing element, 5-a boss, 6-a groove and 7-a mounting groove.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the O-ring sealing structure of the embodiment includes a first O-ring 1, a second O-ring 2, and a first sealing member 3 and a second sealing member 4 to be sealed with each other, wherein a boss 5 is disposed on the first sealing member 3, a groove 6 matched with the boss 5 is disposed on the second sealing member 5, contact surfaces of the boss 5 and the groove 6 are both inclined surfaces, and the first O-ring 1 and the second O-ring 2 are sleeved on the boss 5 at intervals.

O type circle seal structure based on above-mentioned technical characteristic through set up first O type circle 1 and second O type circle 2 on boss 5 at first sealing member 3, and boss 5 and recess 6 matched with contact surface all set up to the inclined plane simultaneously for seal structure not only can realize sealing under less exogenic action, can rely on the dead weight of sealing member to realize sealing even when the dead weight of sealing member reaches certain degree. In addition, the inclined planes of the boss 5 and the groove 6 are arranged, so that the O-shaped ring is compressed and sealed by the radial force applied by the sealing element, and the phenomenon that the sealing element with larger self weight applies axial force to the O-shaped ring to compress and damage the O-shaped ring is avoided; meanwhile, when the O-shaped ring is damaged or deformed in different degrees, the two sealing pieces move relatively under the action of external force or self weight, and the O-shaped ring is continuously compressed to realize sealing. The utility model discloses simple structure, excellent in use effect easily uses widely.

In this embodiment, the boss 5 is provided with two parallel mounting grooves 7 for mounting the first O-ring 1 and the second O-ring 2. Because the first O-shaped ring 1 and the second O-shaped ring 2 are arranged at intervals, and the surfaces of the bosses 5 matched with the grooves 6 are inclined planes, the diameters of the bosses 5 corresponding to the first O-shaped ring 1 and the second O-shaped ring 2 are different according to different distances, so that the first O-shaped ring 1 and the second O-shaped ring 2 can be arranged into O-shaped rings with the same cross section diameter or into O-shaped rings with different cross section diameters according to requirements. When the first O-shaped ring 1 and the second O-shaped ring 2 are arranged into O-shaped rings with the same cross section diameter, the depth of the installation groove 7 is 60% -80% of the cross section diameter of the first O-shaped ring 1 or the second O-shaped ring 2, and the actual depth can be set according to the specification size of the installation groove of the O-shaped rings; when the first O-ring 1 and the second O-ring 2 are provided with O-rings having different cross-sectional diameters, the depth of the mounting groove 7 corresponding to the first O-ring 1 and the second O-ring 2 is set to correspond to the cross-sectional diameters of the first O-ring 1 and the second O-ring 2.

In this embodiment, in order to make the inclined planes of the boss 5 and the groove 6 play a greater role, the contact surfaces of the boss 5 and the groove 6 are parallel to each other, and the included angle between the longitudinal section of the boss 5 or the groove 6 and the horizontal plane is 20 ° to 70 °, and the specific angle can be determined as required.

In this embodiment, the depth of the groove 6 is greater than the height of the boss 5. Since the first sealing member 3 and the second sealing member 4 will move relatively under the action of external force or self weight when the O-rings are damaged or deformed to different degrees, the depth of the groove 6 is set to be greater than the height of the boss 5, so that the top end of the boss 5 and the bottom end of the groove 6 have a sufficient moving distance when the boss 5 and the groove 6 move relatively, and the first O-ring 1 and the second O-ring 2 are continuously compressed to realize sealing.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a O type circle seal structure which characterized in that: including first O type circle, second O type circle and treat first sealing member and the second sealing member of mutual sealing, be equipped with the boss on the first sealing member, be equipped with the cooperation on the second sealing member the recess of boss, the boss reaches recess matched with contact surface is the inclined plane, first O type circle and second O type circle looks interval ground cover are established on the boss.

2. The O-ring sealing structure of claim 1, wherein: the boss is provided with two parallel mounting grooves for mounting the first O-shaped ring and the second O-shaped ring.

3. The O-ring sealing structure of claim 1, wherein: the contact surfaces of the lug boss and the groove are mutually parallel.

4. An O-ring sealing structure as claimed in claim 3, wherein: the included angle between the longitudinal section of the boss or the groove and the horizontal plane is 20-70 degrees.

5. The O-ring sealing structure of claim 2, wherein: the depth of the mounting groove is 60% -80% of the diameter of the section of the first O-shaped ring or the second O-shaped ring.

6. The O-ring sealing structure of claim 1, wherein: the depth of the groove is greater than the height of the boss.