Rotary sealing ring for hole

Abstract

The utility model relates to a rotary sealing ring for a hole, and belongs to the technical field of sealing rings for holes. Comprising a body, the air side of the body is rotationally connected with a protection mechanism, a U-shaped lip and auxiliary lips are arranged on the outer side of the body, the auxiliary lips are located on the two sides of a U-shaped lip opening, and O-shaped rings are arranged in the auxiliary lips. By arranging the protection mechanism, the protection mechanism can be fixed in the threaded groove after the sealing ring for the mounting hole is rotated, so that the influence on the using effect and the service life of the sealing ring caused by sunshine, rain and impurity abrasion is effectively avoided, and a lubricant can enter the oil groove conveniently by arranging the U-shaped lip and the auxiliary lip which are matched with each other; the O-shaped ring provides continuous lubrication for the lip portion of the sealing ring, friction and abrasion between the sealing ring and a shaft are reduced, meanwhile, the O-shaped ring keeps tight connection between the auxiliary lip and the sealing hole, and therefore the good sealing effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to a rotary sealing ring for a hole, belonging to the technical field of sealing rings for holes. Background Art

[0002] The rotary seal is a sealing element used to seal the rotating shaft, which is widely used in various machines and equipment, such as pumps, compressors, agitators, etc. Its function is to prevent liquid or gas from leaking out from between the rotating shaft and the sealing cavity, and also to prevent external impurities from entering the equipment.

[0003] After searching, the publication number CN202123282174.6 discloses a rotating sealing ring for a hole, including a sealing ring and an O-ring arranged inside the sealing ring, the two ends of the outer peripheral surface of the sealing ring are provided with symmetrical auxiliary lips, the middle part of the outer peripheral surface is provided with a flat lip, and the auxiliary lip is higher than the flat lip. This utility model increases the stability of the product during use.

[0004] However, the rotating seal ring for the hole is easily affected by the environment, impurities and wear, which leads to aging and affects the service life. At the same time, the auxiliary lip of the triangular lip is easy to affect the sealing effect. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing rotating sealing ring for holes is easily affected by the environment, impurities and wear, resulting in aging, which affects the service life. At the same time, the auxiliary lip of the triangular lip easily affects the sealing effect.

[0006] In order to solve the above problems, the utility model provides a rotating seal ring for a hole, comprising a main body, the air side of the main body is connected to a protective mechanism, the outer side of the main body is provided with a U-shaped lip and an auxiliary lip, the auxiliary lip is located on both sides of the U-shaped lip, and an O-ring is provided inside the auxiliary lip;

[0007] The protection mechanism comprises a protection cover and a connecting ring, wherein the connecting ring is fixedly connected to one side of the protection cover, a thread is arranged inside the connecting ring, and a thread groove adapted to the connecting ring is arranged on the air side of the main body.

[0008] Furthermore: the two O-rings are respectively located in the auxiliary lip on a side close to the main body and a side away from the main body.

[0009] Furthermore: an annular oil groove is provided between the U-shaped lip and the auxiliary lip.

[0010] Furthermore: the inner diameter of the protective cover is smaller than the inner diameter of the main body.

[0011] Furthermore: the diameter of the connecting ring is between the inner diameter and the outer diameter of the protective cover.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] This patent provides a protective mechanism, which can be fixed to the thread groove after the rotating sealing ring is used in the mounting hole, thereby effectively preventing the sun, rain and impurities from wearing and affecting the use effect and service life of the sealing ring;

[0014] By arranging the U-shaped lip and the auxiliary lip to cooperate, the lubricant is easy to enter the oil groove, providing continuous lubrication for the lip of the sealing ring, reducing friction and wear with the shaft. At the same time, the O-ring maintains a close connection between the auxiliary lip and the sealing hole, thereby ensuring a good sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 The utility model is a structure of a rotating sealing ring for a hole Figure 1 .

[0017] Figure 2 The utility model is a structure of a rotating sealing ring for a hole Figure 2 .

[0018] Figure 3 The utility model is a cross-sectional view of a rotary sealing ring for a hole.

[0019] In the attached figure:

[0020] 1. Main body; 11. Threaded groove; 2. Protective mechanism; 21. Protective cover; 22. Connecting ring; 3. U-shaped lip; 4. Auxiliary lip; 41. O-ring; 5. Annular oil groove. DETAILED DESCRIPTION

[0021] 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.

[0022] Embodiment 1

[0023] Combined with Figure 1-3The utility model provides a rotary sealing ring for a hole, comprising a main body 1, a protective mechanism 2 connected to the air side of the main body 1, a U-shaped lip 3 and an auxiliary lip 4 are arranged on the outer side of the main body 1, the auxiliary lips 4 are located on both sides of the U-shaped lip, so that the lubricant can provide continuous lubrication for the lip of the sealing ring and reduce the friction and wear with the shaft, an O-ring 41 is arranged in the auxiliary lip 4, and the auxiliary lip 4 is kept tightly connected with the sealing hole to ensure a good sealing effect, the protective mechanism 2 comprises a protective cover 21 and a connecting ring 22, the connecting ring 22 is fixedly connected to one side of the protective cover 21, a thread is arranged in the connecting ring 22, a thread groove 11 adapted to the connecting ring 22 is arranged on the air side of the main body 1, after the sealing ring is installed, the protective cover 21 is fixed to the thread groove 11 through the thread on the connecting ring 22, so as to effectively prevent the sun, rain and impurities from wearing and affecting the use effect and service life of the sealing ring.

[0024] Embodiment 2

[0025] Combined with Figure 1-3 On the basis of the first embodiment, two O-rings 41 are respectively located in the auxiliary lip 4 on the side close to the main body 1 and the side away from the main body 1, which effectively ensures that the auxiliary lip 4 is directly and tightly fitted with the sealing hole, producing a good sealing effect. An annular oil groove 5 is provided between the U-shaped lip 3 and the auxiliary lip 4. The annular oil groove 5 cooperates with the U-shaped lip 3 and the auxiliary lip 4 to facilitate the lubricant to enter the oil groove and reduce the wear of the rotating sealing ring for the hole and the shaft. At the same time, under high-speed or high-temperature operating conditions, the oil groove can help disperse the heat generated by friction and prevent the sealing ring from being damaged due to overheating. The inner diameter of the protective cover 21 is smaller than the inner diameter of the main body 1, which fully protects the inner sealing ring and prevents the sun, rain, and impurities from wearing and affecting the use effect and service life of the sealing ring. The diameter of the connecting ring 22 is between the inner diameter and the outer diameter of the protective cover, which avoids the situation where the connecting ring 22 is too large and inconvenient to install.

[0026] The working principle of the present application is as follows: when in use, the U-shaped lip 3 and the auxiliary lip 4 facilitate the lubricant to provide continuous lubrication for the lip of the sealing ring, reducing the friction and wear between the rotating sealing ring for the hole and the shaft. The O-ring 41 effectively ensures that the auxiliary lip 4 is directly and tightly fitted with the sealing hole, producing a good sealing effect. After the sealing ring is installed, the protective cover 21 is fixed to the thread groove 11 through the thread on the connecting ring 22, thereby effectively preventing the sun, rain, impurities and wear from affecting the use effect and service life of the sealing ring.

[0027] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A rotary seal ring for a hole, comprising a main body (1), characterized in that: The air side of the main body (1) is connected to a protection mechanism (2); a U-shaped lip (3) and an auxiliary lip (4) are provided on the outside of the main body (1); the auxiliary lip (4) is located on both sides of the U-shaped lip (3); an O-ring (41) is provided inside the auxiliary lip (4); The protection mechanism (2) comprises a protection cover (21) and a connecting ring (22), wherein the connecting ring (22) is fixedly connected to one side of the protection cover (21), a thread is provided inside the connecting ring (22), and a thread groove (11) adapted to the connecting ring (22) is provided on the air side of the main body (1).

2. A rotary seal ring for a hole according to claim 1, characterized in that: The two O-rings (41) are respectively located inside the auxiliary lip (4) on a side close to the main body (1) and a side away from the main body (1).

3. A rotary seal ring for a hole according to claim 1, characterized in that: An annular oil groove (5) is provided between the U-shaped lip (3) and the auxiliary lip (4).

4. A rotary seal ring for a hole according to claim 1, characterized in that: The inner diameter of the protective cover (21) is smaller than the inner diameter of the main body (1).

5. The hole rotary seal ring according to claim 1, characterized in that: The diameter of the connecting ring (22) is between the inner diameter and the outer diameter of the protective cover (21).

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