Multi-stage sealing hydraulic sealing element

Abstract

The utility model discloses a multi-stage sealing hydraulic sealing element which comprises a multi-stage sealing outer base ring, an inner attaching sealing ring is embedded in the middle of the inner side of the multi-stage sealing outer base ring, a supporting inner ring is embedded in the middle of the interior of the multi-stage sealing outer base ring, and an outer attaching sealing ring is embedded in the middle of the outer side of the multi-stage sealing outer base ring. According to the multi-stage sealing structure, the multi-stage sealing outer base ring, the inner attaching sealing ring and the outer attaching sealing ring are arranged, the multi-stage sealing outer base ring serves as a main body frame, the inner attaching sealing ring and the outer attaching sealing ring conduct sealing from the inner side and the outer side respectively, multiple sealing defensive lines are formed, and the sealing effect is good. The multi-stage sealing structure is simpler and lower in cost, and the inner attaching sealing ring and the outer attaching sealing ring can be conveniently replaced.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic sealing equipment technology, specifically a multi-stage hydraulic sealing component. Background Technology

[0002] Multi-stage hydraulic seals are important components in hydraulic systems used to prevent leakage of the working medium and the intrusion of external impurities. Most common multi-stage hydraulic seals improve sealing effect and reliability by setting multiple sealing stages.

[0003] However, such multi-stage seals often require the simultaneous installation of multiple sets of seals with different structures to achieve a multi-stage sealing effect. In some environments with low sealing requirements, such seal structures are costly and inconvenient to maintain. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-stage hydraulic seal to solve the problem that most existing multi-stage seals require the simultaneous installation of multiple sets of seals with different structures to achieve a multi-stage sealing effect. In some operating environments with low sealing requirements, such seal structures are costly and inconvenient to maintain.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage sealing hydraulic seal, comprising: a multi-stage sealing outer base ring, wherein an inner fitting sealing ring is embedded in the middle of the inner side of the multi-stage sealing outer base ring, a supporting inner ring is embedded in the middle of the inner side of the multi-stage sealing outer base ring, and an outer fitting sealing ring is embedded in the middle of the outer side of the multi-stage sealing outer base ring.

[0006] As a further embodiment of this utility model: the multi-stage sealing outer base ring includes a multi-stage sealing outer base ring body, an inner ring groove is formed in the middle of the inner side of the multi-stage sealing outer base ring body, a support groove is formed in the middle of the inner side of the multi-stage sealing outer base ring body, an outer ring groove is formed in the middle of the outer side of the multi-stage sealing outer base ring body, an upper inclined groove is formed at one upper end of the multi-stage sealing outer base ring body, and a lower inclined groove is formed at one lower end of the multi-stage sealing outer base ring body.

[0007] As a further embodiment of this utility model: the inner bonding sealing ring includes an inner bonding sealing ring body, and an inner ring chrome plating layer is fixedly disposed on the inner side surface of the inner bonding sealing ring body.

[0008] As a further embodiment of this utility model: the inner support ring includes an elastic honeycomb skeleton, an upper support washer is fixedly provided at one upper end of the elastic honeycomb skeleton, and a lower support washer is fixedly provided at one lower end of the elastic honeycomb skeleton. The elastic honeycomb skeleton is made of cork rubber material, and both the upper support washer and the lower support washer are made of silicone rubber material.

[0009] As a further embodiment of this utility model: the outer bonding sealing ring includes an outer bonding sealing ring body, and an outer ring chrome plating layer is fixedly disposed on the outer surface of the outer bonding sealing ring body.

[0010] As a further improvement of this utility model: both the upper inclined groove and the lower inclined groove are conical structures that are narrow inside and wide outside, and the interior of the support groove is filled with argon gas.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model features a multi-level sealing structure consisting of a multi-level sealing outer base ring, an inner bonding sealing ring, and an outer bonding sealing ring. The multi-level sealing outer base ring serves as the main frame, while the inner and outer bonding sealing rings seal from the inside and outside, respectively, forming multiple lines of sealing defense. This multi-level sealing structure is simpler and lower in cost, and the inner and outer bonding sealing rings can be easily replaced.

[0013] In this invention, the upper inclined groove above the multi-stage sealing outer base ring and the lower inclined groove below are both conical structures that are narrow inside and wide outside. This design can buffer and disperse pressure when the hydraulic system is working. When pressure is applied to the seal, the inclined groove can guide the pressure to be evenly distributed, avoiding excessive local pressure that could damage the seal and extending the service life of the seal. Furthermore, when the upper inclined groove and the lower inclined groove are under pressure, they can further enhance the fitting force and achieve a better sealing effect.

[0014] In this invention, argon gas is filled inside the support groove. Argon gas has good chemical stability and inertness. On the one hand, it can play a role in buffering and shock absorption, reducing the impact of pressure fluctuations in the hydraulic system on the seals. On the other hand, argon gas can also prevent oxidation and corrosion inside the inner ring of the support and the outer base ring of the multi-stage seal, protecting the internal structure of the seals and improving their durability. The elastic honeycomb skeleton of the inner ring of the support is made of cork rubber. This material has good elasticity and flexibility and can undergo elastic deformation under pressure, thereby better adapting to the internal structure of the outer base ring of the multi-stage seal and enhancing the support effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a multi-stage sealing hydraulic seal according to the present invention;

[0016] Figure 2 This is a cross-sectional internal structure diagram of the multi-stage sealing outer base ring in a multi-stage sealing hydraulic seal according to the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the multi-stage sealing outer base ring in a multi-stage sealing hydraulic seal according to the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the inner sealing ring in a multi-stage sealing hydraulic seal according to the present invention;

[0019] Figure 5 This is a schematic diagram of the supporting inner ring structure in a multi-stage sealing hydraulic seal according to the present invention;

[0020] Figure 6 This is a schematic diagram of the structure of the outer sealing ring in a multi-stage sealing hydraulic seal according to the present invention.

[0021] In the diagram: 1. Multi-stage sealing outer base ring; 2. Inner bonding sealing ring; 3. Supporting inner ring; 4. Outer bonding sealing ring; 10. Multi-stage sealing outer base ring body; 11. Inner ring groove; 12. Support groove; 13. Outer ring groove; 14. Upper inclined groove; 15. Lower inclined groove; 20. Inner bonding sealing ring body; 21. Inner ring chrome plating layer; 30. Elastic honeycomb skeleton; 31. Upper support washer; 32. Lower support washer; 40. Outer bonding sealing ring body; 41. Outer ring chrome plating layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0024] Reference Figure 1 and Figure 2 In this embodiment of the present invention, a multi-stage sealing hydraulic seal includes: a multi-stage sealing outer base ring 1, an inner fitting sealing ring 2 embedded in the middle of the inner side of the multi-stage sealing outer base ring 1, a supporting inner ring 3 embedded in the middle of the inner side of the multi-stage sealing outer base ring 1, and an outer fitting sealing ring 4 embedded in the middle of the outer side of the multi-stage sealing outer base ring 1.

[0025] The above solution employs a multi-stage sealing structure consisting of a multi-stage sealing outer base ring 1, an inner bonding sealing ring 2, and an outer bonding sealing ring 4. The multi-stage sealing outer base ring 1 serves as the main frame, while the inner bonding sealing ring 2 and the outer bonding sealing ring 4 seal from the inside and outside, respectively, forming multiple lines of sealing defense. This multi-stage sealing structure is simpler and lower in cost, and the inner bonding sealing ring 2 and the outer bonding sealing ring 4 can be easily replaced.

[0026] Reference Figure 3The multi-stage sealing outer base ring 1 includes a multi-stage sealing outer base ring body 10. An inner ring groove 11 is formed in the middle of the inner side of the multi-stage sealing outer base ring body 10. A support groove 12 is formed in the middle of the inner side of the multi-stage sealing outer base ring body 10. An outer ring groove 13 is formed in the middle of the outer side of the multi-stage sealing outer base ring body 10. An upper inclined groove 14 is formed at one upper end of the multi-stage sealing outer base ring body 10, and a lower inclined groove 15 is formed at one lower end of the multi-stage sealing outer base ring body 10. The upper inclined groove 14 and the lower inclined groove 15... The grooves 15 are all tapered structures that are narrow on the inside and wide on the outside. The support groove 12 is filled with argon gas. The inner sealing ring 2 is adapted to be embedded in the inner ring groove 11. The inner supporting ring 3 is adapted to be embedded in the support groove 12. The outer sealing ring 4 is adapted to be embedded in the outer ring groove 13. The multi-stage sealing outer base ring body 10 is provided with an upper inclined groove 14 and a lower inclined groove 15. Both the inner and outer sides are provided with micro-convex ring structures. These micro-convex ring structures are adapted to the inner sealing ring 2 and the inner supporting ring 3.

[0027] The above scheme is adopted: the upper inclined groove 14 above the multi-stage sealing outer base ring 10 and the lower inclined groove 15 below are both conical structures with a narrow inner surface and a wide outer surface. This design can buffer and disperse pressure when the hydraulic system is working. When pressure is applied to the seal, the inclined groove can guide the pressure to be evenly distributed, avoiding excessive local pressure that could damage the seal and extending its service life. Furthermore, when the upper inclined groove 14 and the lower inclined groove 15 are under pressure, they can further enhance the fitting force and achieve a better sealing effect. The support groove 12 is filled with argon gas. Argon gas has good chemical stability and inertness. On the one hand, it can buffer and dampen the impact of pressure fluctuations in the hydraulic system on the seal. On the other hand, argon gas can also prevent oxidation and corrosion inside the support inner ring 3 and the multi-stage sealing outer base ring 1, protecting the internal structure of the seal and improving its durability.

[0028] Reference Figure 4 The inner sealing ring 2 includes an inner sealing ring body 20, and an inner ring chrome plating layer 21 is fixedly provided on the inner surface of the inner sealing ring body 20.

[0029] Reference Figure 5 The inner ring 3 includes an elastic honeycomb skeleton 30. An upper support washer 31 is fixedly installed at the upper end of the elastic honeycomb skeleton 30, and a lower support washer 32 is fixedly installed at the lower end of the elastic honeycomb skeleton 30. The elastic honeycomb skeleton 30 is made of cork rubber, and the upper support washer 31 and the lower support washer 32 are both made of silicone rubber.

[0030] The above solution is adopted: the elastic honeycomb skeleton 30 supporting the inner ring 3 is made of cork rubber material. This material has good elasticity and flexibility and can undergo elastic deformation under pressure, thereby better adapting to the internal structure of the multi-stage sealing outer base ring and enhancing the support effect.

[0031] Reference Figure 6 The outer sealing ring 4 includes an outer sealing ring body 40, and an outer ring chrome plating layer 41 is fixedly provided on the outer surface of the outer sealing ring body 40.

[0032] The working principle of this utility model is as follows: During use, a multi-stage sealing structure is employed, consisting of a multi-stage sealing outer base ring 1, an inner fitting sealing ring 2, and an outer fitting sealing ring 4. The multi-stage sealing outer base ring 1 serves as the main frame, while the inner fitting sealing ring 2 and the outer fitting sealing ring 4 seal from the inside and outside respectively, forming multiple lines of defense. This multi-stage sealing structure is simpler and lower in cost, and allows for easy replacement of the inner fitting sealing ring 2 and the outer fitting sealing ring 4. The upper inclined groove 14 above the multi-stage sealing outer base ring body 10 and the lower inclined groove 15 below are both conical structures that are narrower inside and wider outside. This design can buffer and disperse pressure during hydraulic system operation. When pressure is applied to the seal, the inclined groove can guide the pressure to distribute evenly, preventing excessive local pressure from causing seal failure. Damage to the seal extends its service life. Furthermore, when the upper inclined groove 14 and the lower inclined groove 15 are under pressure, the sealing force is further enhanced, resulting in a better sealing effect. The support groove 12 is filled with argon gas, which has good chemical stability and inertness. On one hand, it can buffer and dampen shocks, reducing the impact of pressure fluctuations in the hydraulic system on the seal. On the other hand, argon gas can also prevent oxidation and corrosion inside the support inner ring 3 and the multi-stage sealing outer base ring 1, protecting the internal structure of the seal and improving its durability. The elastic honeycomb skeleton 30 of the support inner ring 3 is made of cork rubber, which has good elasticity and flexibility, and can undergo elastic deformation under pressure, thus better adapting to the internal structure of the multi-stage sealing outer base ring and enhancing the support effect.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-stage sealed hydraulic seal, characterized by, The utility model relates to a multi-stage sealing outer base ring (1) is internally embedded with an inner adhering sealing ring (2), is internally embedded with a supporting inner ring (3), and is externally embedded with an outer adhering sealing ring (4). The multi-stage sealing outer base ring (1) comprises a multi-stage sealing outer base ring body (10), an inner ring embedding groove (11) is formed in the middle of the inner side of the multi-stage sealing outer base ring body (10), a supporting embedding groove (12) is formed in the middle of the inner side of the multi-stage sealing outer base ring body (10), an outer ring embedding groove (13) is formed in the middle of the outer side of the multi-stage sealing outer base ring body (10), an upper inclined surface groove (14) is formed at one end of the upper side of the multi-stage sealing outer base ring body (10), and a lower inclined surface groove (15) is formed at one end of the lower side of the multi-stage sealing outer base ring body (10).

2. A multi-stage sealed hydraulic seal according to claim 1, wherein, The inner adhering sealing ring (2) comprises an inner adhering sealing ring body (20), and an inner ring chrome plating layer (21) is fixedly arranged on the inner side surface of the inner adhering sealing ring body (20).

3. A multi-stage sealed hydraulic seal according to claim 1, wherein, The supporting inner ring (3) comprises an elastic honeycomb framework (30), an upper supporting gasket (31) is fixedly arranged at one end of the upper side of the elastic honeycomb framework (30), and a lower supporting gasket (32) is fixedly arranged at one end of the lower side of the elastic honeycomb framework (30); the elastic honeycomb framework (30) is made of soft rubber; the upper supporting gasket (31) and the lower supporting gasket (32) are made of silicone rubber.

4. A multi-stage sealed hydraulic seal according to claim 1, wherein, The outer adhering sealing ring (4) comprises an outer adhering sealing ring body (40), and an outer ring chrome plating layer (41) is fixedly arranged on the outer side surface of the outer adhering sealing ring body (40).

5. A multi-stage sealed hydraulic seal according to claim 1, wherein, The upper inclined surface groove (14) and the lower inclined surface groove (15) are tapered structures with a narrow inner side and a wide outer side, and the supporting embedding groove (12) is filled with argon.

6. A multi-stage sealed hydraulic seal according to claim 2, wherein, ​

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