A trapezoidal groove structure for a ceramic sealing ring

By designing a trapezoidal groove structure for the ceramic sealing ring, convenient installation, secure connection, and reliable sealing are achieved, solving the problems of high overall replacement cost and resource waste of existing ceramic sealing rings, and improving efficiency and cost-effectiveness.

CN224579755UActive Publication Date: 2026-07-31SIMEC SPECIAL CERAMIC TECH (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SIMEC SPECIAL CERAMIC TECH (SUZHOU) CO LTD
Filing Date
2025-09-23
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing ceramic sealing rings are integrally molded structures, which require the entire ring to be replaced during replacement. This is especially costly and wasteful in applications involving large-diameter shafts. Furthermore, the sealing ring can still function normally even when only the working end face is damaged, resulting in wasted resources.

Method used

A trapezoidal groove structure for a ceramic sealing ring was designed, including an annular component, a mounting component, a limiting component, and a rubber ring. Through precise positioning, tight connection, and a double sealing barrier, it achieves convenient installation, firm connection, and reliable sealing.

Benefits of technology

It improves the ease of installation, structural stability, and sealing reliability of the sealing ring, reduces resource waste, and lowers production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a trapezoidal groove structure for a ceramic sealing ring, comprising an annular component. The annular component has a mating interface on its top surface, an annular groove on its side surface, a first mounting component, a second mounting component, and a third mounting component on its side surface, and a connecting component on its side surface. A limiting component is fixedly connected to the bottom surface of the connecting component. The top surfaces of the first, second, third, and limiting components each have a first trapezoidal groove and a second trapezoidal groove. This trapezoidal groove structure for the ceramic sealing ring, with its precise positioning design, convenient plug-in installation method, stable connection structure, and double sealing barrier, achieves easy installation, firm connection, reliable sealing, and long-term stable operation.
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Description

Technical Field

[0001] This utility model relates to the field of sealing technology, specifically to a trapezoidal groove structure for a ceramic sealing ring. Background Technology

[0002] A ceramic sealing ring is a shaft sealing component that is often installed in the rotating ring seat of a mechanical seal. In order to limit the relative rotation between the ceramic sealing ring and the rotating ring seat, the manufacturer will cut a groove on the non-working end face of the ceramic sealing ring to achieve a limiting connection between the sealing ring and the rotating ring seat. This ensures that the ceramic sealing ring and the rotating ring seat can only move along the axis of the sealing ring, thus ensuring that the ceramic sealing ring and the shaft rotate synchronously when the mechanical seal is running.

[0003] Most existing ceramic sealing rings are integrally molded structures, requiring the entire ring to be replaced when replacing the sealing ring. However, when the sealing ring is used on large-diameter shafts, the size and volume of the sealing ring are relatively large, resulting in higher usage costs compared to smaller sealing rings. Moreover, since the wear surface of the sealing ring is only the working end face, when the wear surface of the working end face is too large, the rest of the sealing ring can still work normally. In this case, replacing the entire sealing ring will result in significant waste, leading to higher production costs. Utility Model Content

[0004] The purpose of this invention is to provide a trapezoidal groove structure for a ceramic sealing ring, in order to solve the problem mentioned in the background art that most existing ceramic sealing rings are integrally molded structures, requiring the entire ring to be replaced when replacing the sealing ring. However, when the sealing ring is used on large-diameter shafts, the size and volume of the sealing ring are relatively large, resulting in higher usage costs compared to small sealing rings. Moreover, since the wear surface of the sealing ring is only the working end face, when the wear surface of the working end face is too large, the rest of the sealing ring can still work normally. In this case, replacing the entire sealing ring would result in significant waste and high production costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a trapezoidal groove structure for a ceramic sealing ring, comprising an annular component, a mating interface on the top surface of the annular component, an annular groove on the side surface of the annular component, a first mounting component, a second mounting component, and a third mounting component on the side surface of the annular component, a connecting component on the side surface of the annular component, and a limiting component fixedly connected to the bottom surface of the connecting component; the top surfaces of the first mounting component, the second mounting component, the third mounting component, and the limiting component each have a first... The first, second, and third mounting components and the limiting component each have a second trapezoidal groove on their top surfaces. The annular component has a mounting hole on its side, in which a mounting post is provided. The limiting component has a limiting slot on its top surface, with a first positioning pin fixedly connected to the top surface of the limiting slot. The limiting slot also has a positioning hole on its top surface, with a second positioning pin fixedly connected to the top surface of the limiting slot. A first trapezoidal groove rubber ring is provided on the inner side of the first trapezoidal groove, and a second trapezoidal groove rubber ring is provided on the inner side of the second trapezoidal groove.

[0006] Preferably, the annular component has a mating interface at the center of its top surface, an annular groove at the center of its side surface, and a first mounting component is inserted into a quarter-circle arc on the side surface of the annular component, with the upper edge of the first mounting component fitting the lower edge of the annular groove.

[0007] Preferably, a second mounting member is inserted into the two-quarters arc of the side surface of the annular member, and the side surface of the second mounting member is in contact with the side surface of the first mounting member; a third mounting member is inserted into the three-quarters arc of the side surface of the annular member, and the side surface of the third mounting member is in contact with the side surface of the second mounting member.

[0008] Preferably, the connector is movably connected to the top surface of the limiting member near the edge line, the first trapezoidal groove is formed on the top surface of the first mounting member, the second mounting member, the third mounting member, and the limiting member near the short arc line, and the second trapezoidal groove is formed on the top surface of the first mounting member, the second mounting member, the third mounting member, and the limiting member near the long arc line.

[0009] Preferably, there are four mounting holes, which are respectively opened on the side of the annular part corresponding to the mounting position of the mounting part. There are four mounting posts, which are respectively fixedly connected to the mounting holes on the side of the annular part. A limiting part slot is opened on the top surface of the limiting part near the edge line.

[0010] Preferably, a first positioning pin and a second positioning pin are fixedly connected to the top surface of the limiting member near the corner. A positioning hole is opened on the top surface of the limiting member corresponding to the positioning pin, and the first positioning pin and the second positioning pin are fixedly connected in the positioning hole. A first trapezoidal groove rubber ring and a second trapezoidal groove rubber ring are respectively provided on the inner side of the first trapezoidal groove and the second trapezoidal groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This type of ceramic sealing ring features a trapezoidal groove structure. During daily use, the sealing ring and the mating component are initially positioned via the interface at the center of the top surface of the annular component, ensuring accurate overall installation. Subsequently, the first, second, and third mounting components are inserted and installed at specific positions on the side of the annular component at one-quarter, two-quarters, and three-quarters of the arc, respectively. This is achieved by ensuring that the upper edge of the first mounting component aligns with the lower edge of the annular groove, the side of the second mounting component aligns with the side of the first mounting component, and the side of the third mounting component aligns with the side of the second mounting component. The design of the ceramic sealing ring ensures a tight connection between the mounting components. Four mounting holes and posts on the side of the ring component, corresponding to the mounting positions, further secure the connection between the mounting components and the ring component, preventing displacement after assembly. For the limiting component, the first and second locating pins near the corners on its top surface engage with corresponding locating holes to achieve precise fixation. The connecting component is movably connected to the top surface of the limiting component near the edge. The annular groove at the center of the side of the ring component can accommodate the sealing medium. The first trapezoidal groove near the short arc and the second trapezoidal groove near the long arc on the top surfaces of the first, second, and third mounting components and the limiting component, respectively, have first and second trapezoidal groove rubber rings on their inner sides. These rubber rings tightly fit the groove walls and the mating components, forming a double sealing barrier to effectively prevent media leakage. Simultaneously, the limiting groove opening of the limiting component assists in fixing the connecting component. This ceramic sealing ring trapezoidal groove structure, with its precise positioning design, convenient plug-in installation method, stable connection structure, and double sealing barrier, achieves easy installation, firm connection, reliable sealing, and long-term stable operation. Attached Figure Description

[0012] Figure 1 This is a three-dimensional installation diagram of the present invention; Figure 2 This is a diagram illustrating the mounting column of this utility model; Figure 3 These are illustrations of the various mounting components of this utility model; Figure 4 This is a diagram illustrating the trapezoidal groove rubber ring of this utility model.

[0013] In the diagram: 1. Annular component; 2. Connecting interface; 3. Annular groove; 4. First mounting component; 5. Second mounting component; 6. Third mounting component; 7. Connecting component; 8. Restricting component; 9. First trapezoidal groove; 10. Second trapezoidal groove; 11. Mounting hole; 12. Mounting post; 13. Restricting component slot; 14. First locating pin; 15. Locating hole; 16. Second locating pin; 17. Rubber ring of the first trapezoidal groove; 18. Rubber ring of the second trapezoidal groove. Detailed Implementation

[0014] 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. Example 1

[0015] like Figure 1-4 As shown, this utility model provides a technical solution: a trapezoidal groove structure for a ceramic sealing ring, including an annular component 1, an interface 2 on the top surface of the annular component 1, an annular groove 3 on the side surface of the annular component 1, a first mounting component 4 on the side surface of the annular component 1, an interface 2 at the center of the top surface of the annular component 1, an annular groove 3 at the center of the side surface of the annular component 1, the first mounting component 4 is inserted into a quarter-circle arc on the side surface of the annular component 1, and the upper edge of the first mounting component 4 is aligned with the lower edge of the annular groove 3, a second mounting component 5 and a third mounting component 6 are provided on the side surface of the annular component 1, the second mounting component 5 is inserted into a two-quarter-circle arc on the side surface of the annular component 1, and the side surface of the second mounting component 5 is aligned with the side surface of the first mounting component 4, and the third mounting component 6 is inserted into a three-quarter-circle arc on the side surface of the annular component 1, and the side surface of the third mounting component 6 is aligned with the side surface of the second mounting component 5.

[0016] By precisely positioning and tightly connecting each component, the overall structural stability and sealing reliability of the sealing ring are effectively improved. Example 2

[0017] like Figure 1-4As shown, this utility model provides a technical solution: a trapezoidal groove structure for a ceramic sealing ring, including an annular component 1, a mating interface 2 on the top surface of the annular component 1, an annular groove 3 on the side surface of the annular component 1, a first mounting component 4 on the side surface of the annular component 1, a mating interface 2 at the center of the top surface of the annular component 1, an annular groove 3 at the center of the side surface of the annular component 1, the first mounting component 4 being inserted into a quarter-circle arc on the side surface of the annular component 1, with the upper edge of the first mounting component 4 fitting against the lower edge of the annular groove 3, a second mounting component 5 on the side surface of the annular component 1, a third mounting component 6 on the side surface of the annular component 1, the second mounting component 5 being inserted into a two-quarter-circle arc on the side surface of the annular component 1, with the side surface of the second mounting component 5 fitting against the side surface of the first mounting component 4, and the third mounting component 6 being inserted into a three-quarter-circle arc on the side surface of the annular component 1, with the third mounting component 6 fitting against the first mounting component 4, and the third mounting component 6 fitting against the first mounting component 4. The side of the mounting part 6 fits against the side of the second mounting part 5. The side of the annular part 1 is provided with a connector 7. The bottom surface of the connector 7 is fixedly connected with a limiting part 8. The top surfaces of the first mounting part 4, the second mounting part 5, the third mounting part 6, and the limiting part 8 are provided with a first trapezoidal groove 9 and a second trapezoidal groove 10. The connector 7 is movably connected to the top surface of the limiting part 8 near the edge. The first trapezoidal groove 9 is located on the top surface of the first mounting part 4, the second mounting part 5, the third mounting part 6, and the limiting part 8 near the short arc. The second trapezoidal groove 10 is located on the top surface of the first mounting part 4, the second mounting part 5, the third mounting part 6, and the limiting part 8 near the long arc. The side of the annular part 1 is provided with a mounting hole 11, and a mounting post 12 is provided in the mounting hole 11.

[0018] Through precise positioning and close cooperation of each component, the ease of installation, structural stability and sealing reliability of the sealing ring are effectively improved. At the same time, the trapezoidal groove design enhances the capacity and adaptability of the sealing medium. Example 3

[0019] like Figure 1-4As shown, this utility model provides a technical solution: a trapezoidal groove structure for a ceramic sealing ring, including an annular component 1, a mating interface 2 on the top surface of the annular component 1, an annular groove 3 on the side surface of the annular component 1, a first mounting component 4 on the side surface of the annular component 1, a mating interface 2 at the center of the top surface of the annular component 1, an annular groove 3 at the center of the side surface of the annular component 1, the first mounting component 4 being inserted into a quarter-circle arc on the side surface of the annular component 1, with the upper edge of the first mounting component 4 fitting against the lower edge of the annular groove 3, a second mounting component 5 on the side surface of the annular component 1, a third mounting component 6 on the side surface of the annular component 1, and the second mounting component 5 being inserted into a two-quarter-circle arc on the side surface of the annular component 1. The side of the second mounting part 5 fits against the side of the first mounting part 4. A third mounting part 6 is inserted into the three-quarters arc of the side of the annular part 1, and the side of the third mounting part 6 fits against the side of the second mounting part 5. A connecting part 7 is provided on the side of the annular part 1, and a limiting part 8 is fixedly connected to the bottom surface of the connecting part 7. A first trapezoidal groove 9 is formed on the top surface of the first mounting part 4, the second mounting part 5, the third mounting part 6, and the limiting part 8. A second trapezoidal groove 10 is formed on the top surface of the first mounting part 4, the second mounting part 5, the third mounting part 6, and the limiting part 8. The connecting part 7 is movably connected to the top surface of the limiting part 8 near the edge. The first trapezoidal groove 9 is formed in the first mounting part 4, the second mounting part 5, the third mounting part 6, and the limiting part 8. Near the short arc line on the top surface of mounting component 6 and limiting component 8, the second trapezoidal groove 10 is formed on the top surface of the first mounting component 4, the second mounting component 5, the third mounting component 6, and the limiting component 8 near the long arc line. Mounting holes 11 are formed on the side of the annular component 1, and mounting posts 12 are installed in the mounting holes 11. A limiting slot 13 is formed on the top surface of the limiting component 8. There are four mounting holes 11, each located on the side of the annular component 1 corresponding to the mounting position of the mounting component. There are four mounting posts 12, each fixedly connected to the mounting holes 11 on the side of the annular component 1. A limiting slot 13 is formed on the top surface of the limiting component 8 near the edge line, and the top surface of the limiting slot 13 is fixedly connected to... The first positioning pin 14 and the top surface of the limiting member groove 13 are provided with positioning holes 15. The top surface of the limiting member groove 13 is fixedly connected with the second positioning pin 16. The inner side of the first trapezoidal groove 9 is provided with a first trapezoidal groove rubber ring 17. The inner side of the second trapezoidal groove 10 is provided with a second trapezoidal groove rubber ring 18. The top surface of the limiting member 8 is fixedly connected with the first positioning pin 14 and the second positioning pin 16 near the corner. The top surface of the limiting member 8 is provided with positioning holes 15 corresponding to the positioning pins, and the first positioning pin 14 and the second positioning pin 16 are fixedly connected in the positioning holes 15. The inner sides of the first trapezoidal groove 9 and the second trapezoidal groove 10 are respectively provided with the first trapezoidal groove rubber ring 17 and the second trapezoidal groove rubber ring 18.

[0020] The precise positioning and stable assembly of each component significantly improves the overall stability of the structure. At the same time, the combination design of the trapezoidal groove and the rubber ring significantly enhances the sealing performance and effectively prevents media leakage. Furthermore, the configuration of multiple sets of installation and positioning components improves the ease of installation and assembly accuracy, ensuring the reliability and compatibility of the sealing ring in all aspects.

[0021] Working principle: First, the sealing ring and the mating parts are initially positioned through the interface 2 at the center of the top surface of the annular part 1, ensuring accurate overall installation datum. Then, the first mounting part 4, the second mounting part 5, and the third mounting part 6 are inserted and installed at specific positions on the side of the annular part 1 at one-quarter, two-quarter, and three-quarter arcs, respectively, with the upper edge of the first mounting part 4 aligned with the lower edge of the annular groove 3, the side of the second mounting part 5 aligned with the side of the first mounting part 4, and the side of the third mounting part 6 aligned with the side of the second mounting part 5. The fitting design creates a tight connection between the mounting components. Simultaneously, the four mounting holes 11 on the side of the annular component 1, corresponding to the mounting component positions, and the mounting posts 12 further secure the connection between each mounting component and the annular component 1, preventing displacement after assembly. For the limiting component 8, the first positioning pin 14 and the second positioning pin 16 near the corner of its top surface cooperate with the corresponding positioning holes 15 to achieve precise fixing of the limiting component 8. The connecting component 7 is movably connected to the top surface of the limiting component 8 near the edge. The annular groove 3 at the center of the side of the annular component 1 can accommodate the sealing medium. The first mounting component 4 and the second mounting component... The first trapezoidal groove 9 near the short arc and the second trapezoidal groove 10 near the long arc are respectively provided on the top surface of the components 5, the third mounting component 6, and the limiting component 8. The first trapezoidal groove rubber ring 17 and the second trapezoidal groove rubber ring 18 are respectively provided on their inner sides. The rubber rings fit tightly against the groove wall and the docking component to form a double sealing barrier, effectively preventing media leakage. At the same time, the limiting groove 13 of the limiting component 8 can help fix the connecting component 7, indirectly ensuring the stability of the sealing structure and avoiding sealing failure due to component loosening. Finally, through the synergistic effect of each component, the sealing ring can achieve reliable sealing and stable operation.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A trapezoidal groove structure for a ceramic sealing ring, comprising an annular component (1), characterized in that: The top surface of the annular component (1) is provided with a mating interface (2), the side surface of the annular component (1) is provided with an annular groove (3), the side surface of the annular component (1) is provided with a first mounting component (4), the side surface of the annular component (1) is provided with a second mounting component (5), the side surface of the annular component (1) is provided with a third mounting component (6), the side surface of the annular component (1) is provided with a connecting component (7), the bottom surface of the connecting component (7) is fixedly connected with a limiting component (8), the top surface of the first mounting component (4), the second mounting component (5), the third mounting component (6), and the limiting component (8) are provided with a first trapezoidal groove (9), the first mounting component (4), the second mounting component (5), and the third mounting component (6) are provided with a first trapezoidal groove (9). The top surface of the limiting member (8) is provided with a second trapezoidal groove (10), the side surface of the annular member (1) is provided with a mounting hole (11), a mounting post (12) is provided in the mounting hole (11), the top surface of the limiting member (8) is provided with a limiting member slot (13), the top surface of the limiting member slot (13) is fixedly connected with a first positioning pin (14), the top surface of the limiting member slot (13) is provided with a positioning hole (15), the top surface of the limiting member slot (13) is fixedly connected with a second positioning pin (16), the inner side of the first trapezoidal groove (9) is provided with a first trapezoidal groove rubber ring (17), and the inner side of the second trapezoidal groove (10) is provided with a second trapezoidal groove rubber ring (18).

2. The trapezoidal groove structure of a ceramic sealing ring according to claim 1, characterized in that: The annular part (1) has a mating interface (2) at the center of its top surface and an annular groove (3) at the center of its side surface. A first mounting part (4) is inserted into the quarter arc of the side surface of the annular part (1), and the upper edge of the first mounting part (4) fits the lower edge of the annular groove (3).

3. The trapezoidal groove structure of a ceramic sealing ring according to claim 1, characterized in that: A second mounting member (5) is inserted into the two-quarters arc of the side surface of the annular member (1), and the side surface of the second mounting member (5) is in contact with the side surface of the first mounting member (4). A third mounting member (6) is inserted into the three-quarters arc of the side surface of the annular member (1), and the side surface of the third mounting member (6) is in contact with the side surface of the second mounting member (5).

4. The trapezoidal groove structure of a ceramic sealing ring according to claim 1, characterized in that: The connector (7) is movably connected to the top surface of the limiting member (8) near the edge. The first trapezoidal groove (9) is opened on the top surface of the first mounting member (4), the second mounting member (5), the third mounting member (6), and the limiting member (8) near the short arc line. The second trapezoidal groove (10) is opened on the top surface of the first mounting member (4), the second mounting member (5), the third mounting member (6), and the limiting member (8) near the long arc line.

5. The trapezoidal groove structure of a ceramic sealing ring according to claim 1, characterized in that: There are four mounting holes (11), which are respectively opened on the side of the annular part (1) corresponding to the mounting position of the mounting part. There are four mounting posts (12), which are respectively fixedly connected to the mounting holes (11) on the side of the annular part (1). A limiting part slot (13) is opened on the top surface of the limiting part (8) near the edge.

6. The trapezoidal groove structure of a ceramic sealing ring according to claim 1, characterized in that: The top surface of the limiting member (8) near the corner is fixedly connected with a first positioning pin (14) and a second positioning pin (16). The top surface of the limiting member (8) is provided with a positioning hole (15) corresponding to the positioning pin. The first positioning pin (14) and the second positioning pin (16) are fixedly connected in the positioning hole (15). The inner sides of the first trapezoidal groove (9) and the second trapezoidal groove (10) are respectively provided with a first trapezoidal groove rubber ring (17) and a second trapezoidal groove rubber ring (18).