Leakage-proof sealing ring

Abstract

The utility model discloses a leakproof sealing ring, and belongs to the technical field of sealing rings. The leakproof sealing ring comprises the sealing ring body, the first main lip, the first auxiliary lip, the second auxiliary lip and the second main lip, the main sealing faces matched with the main lips and the auxiliary lips are arranged at the upper end and the lower end of the sealing ring body, the sealing effect can be ensured, and under the high-pressure or extreme working condition, the auxiliary lips can provide additional sealing guarantee; the leakage of fluid or gas is prevented, the sealing effect is remarkably improved, and the technical problem that an existing leakage-proof sealing ring is poor in leakage-proof effect is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sealing ring, and relates to a leakage-proof sealing ring. BACKGROUND

[0002] Sealing ring, this seemingly simple but powerful device, plays a pivotal role in the field of engineering technology. As a key component designed to prevent the leakage of liquids or gases, it is usually meticulously crafted from high-quality elastic materials, including but not limited to rubber, silicone, polyurethane, and certain special synthetic materials, which endow the sealing ring with excellent flexibility and durability. In various mechanical equipment and systems, whether it is the precise assembly of automobile engines, the high-pressure environment of chemical equipment, or the daily use of household appliances, the leakage-proof sealing ring is the key to ensuring that fluid media (whether liquid or gaseous) does not accidentally leak. Its unique sealing function effectively blocks the leakage path by tightly fitting the tiny gap between two or more contact surfaces, thereby maintaining the stable operation and safety of the system. With the progress of technology and the improvement of industrial standards, modern sealing ring design places more emphasis on the corrosion resistance, high or low temperature resistance, and long-term reliability of materials to adapt to more complex and variable working environments. In addition, to meet the needs of different equipment, the shape, size, and installation method of the sealing ring are increasingly diversified, from simple O-rings to complex lip seals, shaft seals, etc., each design aims to provide the best sealing effect and service life. In summary, the leakage-proof sealing ring is not only an indispensable small part in mechanical equipment, but also an important cornerstone for ensuring system safety, improving equipment efficiency, and maintaining environmental cleanliness.

[0003] However, the existing leakage-proof sealing ring has some shortcomings, such as unstable sealing performance, poor leakage prevention effect, insufficient material wear resistance, unstable installation positioning, and inconvenient maintenance, etc. These problems not only affect the normal operation of mechanical equipment, but also increase maintenance costs and production safety risks. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a leakage-proof sealing ring, which solves the technical problem of poor leakage prevention effect of the existing leakage-proof sealing ring.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a kind of leak-proof sealing rings, including sealing ring main body, first main lip, first vice lip, second vice lip and second main lip;The first main lip is arranged at the upper end of sealing ring main body, the first vice lip is arranged on the outer surface of sealing ring main body, and is connected with the first main lip by mesa;The second main lip is arranged at the lower end of sealing ring main body, the second vice lip is arranged on the outer lateral wall of sealing ring main body, and is connected with the second main lip by mesa;The setting direction of the first main lip and the first vice lip is same with the meridional direction of sealing ring main body;The setting direction of the second vice lip and the second main lip is same with the weft direction of sealing ring main body.

[0007] Further, the outer lateral wall of the sealing ring main body is sequentially provided with a first boss and a second boss from top to bottom, and the first boss and the second boss are located between the first vice lip and the second vice lip.

[0008] Further, a first rectangular groove is arranged between the first vice lip and the first boss.

[0009] Further, a second rectangular groove is arranged between the second boss and the second vice lip.

[0010] Further, a trapezoidal groove is arranged between the first boss and the second boss.

[0011] Further, the trapezoidal groove is filled with a rubber ring.

[0012] Further, the rubber ring is an O-shaped rubber ring.

[0013] Further, the inner lateral wall of the sealing ring main body is provided with a plurality of trapezoidal protrusions.

[0014] Further, the first vice lip and the first main lip, the second vice lip and the second main lip are connected by a circular-arc transition surface.

[0015] Further, the sealing ring main body is a circular ring.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model discloses a kind of leak-proof sealing rings, by setting the main lip and vice lip cooperation main sealing surface of sealing ring main body upper and lower end, can directly block the invasion of external fluid or gas, the design of main lip has certain elasticity, can keep and the close contact of cooperation surface in the process of equipment operation, to ensure sealing effect, under high pressure or extreme working condition, vice lip can provide additional sealing guarantee, prevent the leakage of fluid or gas, significantly improve sealing effect, solve the technical problem that the existing leak-proof sealing ring exists poor leak-proof effect.

[0018] Further, by setting the first boss, the second boss, the trapezoidal groove, the trapezoidal recess and the rubber ring, through the combination of the multiple sealing structures of the main lip, the secondary lip, the rectangular groove, the boss and the O-shaped rubber ring, multiple sealing protection is provided, which can effectively prevent the leakage of fluid or gas; the cooperation between the components is tight and coordinated, ensuring the stability and durability of the sealing ring during the working process; the sealing ring structure is compact and reasonably designed, and can adapt to various complex working conditions and harsh environments.

[0019] Further, the rectangular groove can prevent the sealing ring from rotating or sliding up and down during installation or use, ensuring accurate docking of the sealing ring with the sealed surface, thereby maintaining stable sealing performance. The rectangular groove can serve as a positioning and guiding mark during installation; the presence of the groove makes it easier to align and fix the sealing ring during installation, thereby simplifying the installation process and improving installation efficiency; the rectangular groove can relieve stress on the sealing ring during installation, reducing damage or deformation of the sealing ring caused by stress concentration.

[0020] Further, the circular-arc transition surface can reduce stress concentration on the sealing contact surface; when the sealing ring is subjected to pressure, the circular-arc transition surface can more evenly distribute the pressure, thereby avoiding sealing failure or damage to the sealing ring caused by excessive local pressure; the design of the circular-arc transition surface also makes the installation process of the sealing ring smoother; this design helps to reduce the resistance experienced by the sealing ring during installation in the equipment after installation is completed.

[0021] Further, the setting of the rubber ring can achieve tight sealing, thereby effectively preventing the leakage of liquid or gaseous medium; the setting of the plurality of trapezoidal protrusions helps to disperse stress concentration on the sealing ring when subjected to pressure, reducing wear and deformation on the inner side of the sealing ring; this stress dispersion effect can prolong the service life of the sealing ring, reduce the replacement frequency and maintenance cost; at the same time, it can also slow down the aging speed of the sealing ring to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a sectional structure of the anti-leakage sealing ring of the utility model;

[0023] Figure 2 It is a plane schematic view of the side sectional structure of the anti-leakage sealing ring of the utility model;

[0024] Figure 3 It is a schematic view of the side sectional structure of the anti-leakage sealing ring of the utility model;

[0025] Figure 4 It is a schematic view of the enlarged structure of A provided in the embodiment of the utility model;

[0026] Wherein: 1-first main lip; 2-first secondary lip; 3-first rectangular groove; 4-first boss; 5-trapezoidal groove; 6-rubber ring; 7-second boss; 8-second rectangular groove; 9-second secondary lip; 10-second main lip; 11-trapezoidal protruding part. DETAILED DESCRIPTION

[0027] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0028] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0029] The utility model discloses a kind of leakage-proof sealing rings, including sealing ring main body, the upper end of sealing ring main body is provided with first main lip 1 and first deputy lip 2, the lower end of sealing ring main body is provided with second deputy lip 9 and second main lip 10;First main lip 1 and first deputy lip 2 are arc transition surface between;The outer side wall of sealing ring main body is provided with first boss 4 and second boss 7, and trapezoidal groove 5 is arranged between first boss 4 and second boss 7;Trapezoidal groove 5 is provided with rubber ring 6;First deputy lip 2 and first deputy lip 2 are provided with first rectangular groove 3;Second deputy lip 9 and second boss 7 are provided with second rectangular groove 8;The inner side wall of the sealing ring main body is provided with a plurality of trapezoidal protruding portions 11;The first main lip 1 and second main lip 10 in it are as main sealing surface, and there is enough elasticity and wear resistance, ensure the close contact with the mating surface, prevent the leakage of fluid or gas;First deputy lip 2 and second deputy lip 9 are as auxiliary sealing surface, and design provides additional sealing guarantee under high pressure or extreme working condition, further enhances sealing performance;The first rectangular groove 3 and second rectangular groove 8 in it facilitate installation and positioning sealing ring, increase the contact area of sealing surface simultaneously, improve sealing effect;The trapezoidal groove 5 in it guides fluid or gas to flow along a particular direction, reduces the possibility of leakage, and provides uniform compression for O-type rubber ring;The design of trapezoidal protruding portion 11 gives sealing ring certain elasticity;This makes sealing ring can better adapt to various surface shapes, including uneven or slightly deformed surface;Such adaptability ensures that sealing ring can maintain tight sealing effect under various complex working conditions, improves the reliability and durability of sealing ring.

[0030] Preferably, the material of the sealing ring main body is modified polyurethane elastomer, which is an integrally cast molded part.

[0031] Preferably, the rubber ring 6 is an O-shaped rubber ring, and the specific material of the O-shaped rubber ring is perfluorinated rubber, which can provide additional sealing guarantee, adapt to different working pressures and temperature ranges, and compensate for small gaps generated during installation or use.

[0032] Embodiment

[0033] Reference Figures 1-4The utility model discloses a kind of leakage-proof sealing rings, the first main lip 1 and the first secondary lip 2 are provided on the sealing ring main body upper end, the second main lip 10 and the second secondary lip 9 are provided on the main body lower end, it is arc transition surface between the first main lip 1 and the first secondary lip 2, it is arc transition surface between the second main lip 10 and the second secondary lip 9;The outside of the main body is equipped with the first boss 4 and the second boss 7, the first boss 4 and the second boss 7 are provided with the trapezoidal groove 5, the O-shaped rubber ring is provided in the trapezoidal groove 5, first rectangular groove 3 is provided between the first secondary lip 2 and the first boss 4, second rectangular groove 8 is provided between the second secondary lip 9 and the second boss 7, the inside of the main body is provided with multiple trapezoidal protruding parts 11.

[0034] Wherein, it is arc transition surface between the first main lip 1 and the first secondary lip 2, it is arc transition surface between the second main lip 10 and the second secondary lip 9;The first main lip 1 and the second main lip 10 setting direction are same with the meridional direction of the main body, the first secondary lip 2 and the second secondary lip 9 setting direction are same with the weft direction of the main body;First main lip 1 and second main lip 10 are primary sealing, tightly fit sealing surface, effectively prevent most liquid or gas leakage, also can play the role of waterproof dustproof. First secondary lip 2 and second secondary lip 9 are arranged outside first main lip 1 and second main lip 10, form secondary sealing, further block small leakage, as auxiliary sealing surface, further enhance sealing effect;Arc transition surface can reduce the stress concentration phenomenon generated on the sealing contact surface;When sealing ring is subjected to pressure, arc transition surface can more evenly disperse these pressures, to avoid the sealing failure or sealing ring damage caused by local excessive pressure. The design of arc transition surface can also make the sealing ring more smooth during installation process;This design helps to reduce the resistance received in equipment during installation process after installation of sealing ring ends.

[0035] First rectangular groove 3 is provided between the first secondary lip 2 and the first boss 4, second rectangular groove 8 is provided between the second secondary lip 9 and the second boss 7, for being sealed piece is clamped into first rectangular groove 3 and second rectangular groove 8, help installer more accurately place sealing ring to correct position, reduce installation error;The design of rectangular groove can prevent sealing ring from rotating or sliding up and down during installation or use, ensure that sealing ring and sealed surface are accurately docked, to maintain stable sealing performance. Rectangular groove can be used as positioning and guiding mark during installation. The existence of groove makes sealing ring more easily aligned and fixed during installation, to simplify installation process, improve installation efficiency. Rectangular groove can relieve stress received by sealing ring during installation process, reduce sealing ring damage or deformation caused by stress concentration.

[0036] The trapezoidal groove 5 is provided between the first boss 4 and the second boss 7, and the inner and outer corner areas of the trapezoidal groove 5 are provided with rounded corners to prevent stress concentration, and the trapezoidal groove is provided with the O-shaped rubber ring. The design of the trapezoidal groove 5 is mainly to fix the O-shaped rubber ring and ensure that it does not loosen or fall off during use. The shape of the trapezoidal groove makes the O-shaped rubber ring more firmly fit in the groove when it is under pressure, thereby avoiding the problem of leakage caused by loosening of the O-shaped rubber ring; when the sealing ring is under pressure, the slope of the trapezoidal groove 5 will produce a certain extrusion force, so that the sealing ring and the sealed surface form a more tight contact, thereby enhancing the sealing effect; in addition, the design of the trapezoidal groove 5 can also reduce the deformation of the sealing ring under pressure, further improving the reliability of the sealing; the main function of the O-shaped rubber ring is to provide a tight seal between two surfaces, thereby effectively preventing the leakage of liquid or gas medium; when the O-shaped rubber ring is installed in the trapezoidal groove 5, it will be compressed and then elastically deformed to fill the gap and form a continuous sealing surface.

[0037] The inner side of the sealing ring body is provided with a plurality of trapezoidal protrusions 11, which help to disperse the stress concentration of the sealing ring under pressure and reduce the wear and deformation of the inner side of the sealing ring; this pressure dispersion effect can prolong the service life of the sealing ring, reduce the replacement frequency and maintenance cost; the presence of the trapezoidal protrusions 11 can also slow down the aging speed of the sealing ring to some extent; since the trapezoidal protrusions 11 can disperse pressure and reduce wear, the overall performance of the sealing ring can be better maintained, thereby prolonging its service life; it can also better fill the tiny gaps between the sealed surfaces, thereby effectively preventing the leakage of gas or liquid; the presence of the trapezoidal protrusions 11 enables the sealing ring to form greater pressure between the trapezoidal protrusions 11 and the sealed surface when installed or under external pressure; this increased sealing pressure can further enhance the sealing effect and ensure the stability and reliability of the sealing ring.

[0038] The above content only illustrates the technical idea of the present application, and cannot limit the protection scope of the present application. Any modification made on the basis of the technical solution according to the technical idea of the present application falls within the protection scope of the claims of the present application.

Claims

1. A leak-proof sealing ring, characterized in that, It includes a sealing ring body, a first main lip (1), a first secondary lip (2), a second secondary lip (9), and a second main lip (10); the first main lip (1) is located at the upper end of the sealing ring body, the first secondary lip (2) is located on the outer surface of the sealing ring body and is connected to the first main lip (1) through a platform; the second main lip (10) is located at the lower end of the sealing ring body, the second secondary lip (9) is located on the outer side wall of the sealing ring body and is connected to the second main lip (10) through a platform; the setting direction of the first main lip (1) and the first secondary lip (2) is the same as the longitudinal direction of the sealing ring body; the setting direction of the second secondary lip (9) and the second main lip (10) is the same as the latitudinal direction of the sealing ring body.

2. The leak-proof sealing ring according to claim 1, characterized in that, The outer wall of the sealing ring body is provided with a first protrusion (4) and a second protrusion (7) from top to bottom, and the first protrusion (4) and the second protrusion (7) are located between the first secondary lip (2) and the second secondary lip (9).

3. The leak-proof sealing ring according to claim 2, characterized in that, A first rectangular groove (3) is provided between the first secondary lip (2) and the first boss (4).

4. The leak-proof sealing ring according to claim 2, characterized in that, A second rectangular groove (8) is provided between the second boss (7) and the second lip (9).

5. A leak-proof sealing ring according to claim 2, characterized in that, A trapezoidal groove (5) is provided between the first boss (4) and the second boss (7).

6. The leak-proof sealing ring according to claim 5, characterized in that, The trapezoidal groove (5) is filled with a rubber ring (6).

7. A leak-proof sealing ring according to claim 6, characterized in that, The rubber ring (6) is an O-ring.

8. The leak-proof sealing ring according to claim 1, characterized in that, The inner wall of the sealing ring body is provided with multiple trapezoidal protrusions (11).

9. A leak-proof sealing ring according to claim 1, characterized in that, The first secondary lip (2) and the first primary lip (1), the second secondary lip (9) and the second primary lip (10) are connected by an arc-shaped transition surface.

10. A leak-proof sealing ring according to claim 1, characterized in that, The main body of the sealing ring is circular.

Images