A metal weld lip sealing ring gasket with a spliced structure
By using a metal welded lip sealing ring gasket with a spliced structure, the problem of having to replace the entire unit due to local wear in the existing technology is solved. This allows for the individual replacement of worn parts, reducing maintenance costs while maintaining sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO AIKE SEALING MFG CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-05-26
AI Technical Summary
Existing metal weld lip sealing rings require complete replacement when they are partially worn or damaged, resulting in waste of metal materials and high maintenance costs.
The metal weld lip sealing ring gasket with a spliced structure includes an outer ring body, an inner ring body, and a splicing assembly. The ring body is detachably connected by a threaded ring, an adjusting ring, and bolts, allowing for individual replacement of worn parts.
It reduces replacement costs, avoids resource waste, ensures the stability of sealing performance and normal operation of equipment, and simplifies the maintenance process.
Smart Images

Figure CN224283442U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of sealing ring gasket technology, and more specifically, to a metal weld lip sealing ring gasket with a spliced structure. Background Technology
[0002] Gaskets are elastic materials used to fill gaps between connections and prevent fluid or gas leakage. They are widely used in engineering and mechanical equipment such as pipes, valves, flanges, and joints. Gaskets come in various types, each designed for specific applications and operating conditions. Weld lip gaskets refer to sealing ring gaskets used at welded joints, typically in welded joints of pipes, containers, or other equipment.
[0003] Existing metal weld lip sealing rings are usually designed as a single piece. When the sealing ring experiences localized wear or damage during long-term use, such as wear and deformation of the weld lip tip that is in close contact with the flange sealing surface due to frequent compression and media scouring, or cracks caused by localized stress concentration due to minor misalignment during installation, the entire sealing ring must be removed from the equipment and replaced as a whole, even if the damage is only small, because the parts of the ring are an inseparable whole. This results in a significant waste of metal materials. Utility Model Content
[0004] To address the aforementioned issues, this application provides a metal weld lip sealing ring gasket with a spliced structure.
[0005] The technical solution provided in this application for a metal weld lip sealing ring gasket with a spliced structure is as follows:
[0006] A metal weld lip sealing ring gasket with a splicing structure includes an outer ring body and an inner ring body, and a splicing assembly is provided between the outer ring body and the inner ring body. The splicing assembly includes an alignment unit and a fixing unit.
[0007] The alignment unit includes a threaded ring and an adjusting ring, and the fixing unit includes a bolt. The threaded ring and adjusting ring are used for initial alignment and fixing of the outer ring body and the inner ring body, and the bolt is used for further reinforcement of the outer ring body and the inner ring body.
[0008] Furthermore, a threaded ring is fixedly connected to one side of the inner ring body, and a first threaded groove is opened on the side of the outer ring body close to the inner ring body. The outer wall of the threaded ring and the inner wall of the first threaded groove are threadedly connected.
[0009] Furthermore, the adjusting ring is rotatably connected to the outer ring body, and the adjusting ring has multiple threaded holes inside, which are distributed in a ring array.
[0010] Furthermore, the inner ring body has multiple second threaded grooves on the side near the outer ring body, and the multiple second threaded grooves are distributed in a ring array.
[0011] Furthermore, grooves are provided on one side of each of the multiple threaded holes, and the structure of the multiple grooves is adapted to the structure of the multiple bolts.
[0012] Furthermore, the number of bolts is set to multiple, with multiple bolts corresponding to multiple threaded holes.
[0013] Furthermore, a sealing gasket is provided on the side of the adjusting ring near the inner ring body.
[0014] Furthermore, one end of each of the multiple bolts is threaded through the corresponding threaded hole and then threadedly connected to the corresponding second threaded groove.
[0015] With the above technical solution, when either the outer ring or the inner ring is worn, there is no need to replace the entire sealing ring gasket; the worn part can be replaced individually, which greatly reduces replacement costs and avoids waste of resources.
[0016] In summary, this application includes at least one of the following beneficial technical effects:
[0017] This invention, through the design of the splicing components, eliminates the need to replace the entire sealing ring gasket when either the outer or inner ring becomes worn. The worn component can be replaced individually simply by removing bolts, rotating the adjusting ring, and unscrewing the threaded ring, significantly reducing replacement costs and avoiding resource waste. During installation, the threaded connection between the threaded ring and the first threaded groove allows for quick initial alignment, while the rotation of the adjusting ring ensures precise alignment between the threaded hole and the second threaded groove. Bolt reinforcement further guarantees a stable connection. The entire process is convenient, requiring no complex tools and effectively shortening maintenance time. Furthermore, this splicing method ensures a tight fit between the replaced ring and the unworn ring. The dual protection of threaded engagement and bolt reinforcement maintains the original sealing performance, ensuring the normal operation of the equipment. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a side view illustrating the overall structure of this utility model;
[0020] Figure 3 This is an exploded view of the overall structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the overall structure of the first threaded groove and the outer ring of this utility model;
[0022] Figure 5This is a schematic diagram of the overall structure of the outer ring of this utility model.
[0023] Explanation of reference numerals in the attached drawings: 1. Outer ring; 2. Inner ring; 3. Threaded ring; 4. First threaded groove; 5. Adjusting ring; 6. Threaded hole; 7. Second threaded groove; 8. Groove; 9. Bolt. Detailed Implementation
[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0025] Reference Figures 1-5 A metal weld lip sealing ring gasket with a splicing structure includes an outer ring body 1 and an inner ring body 2, and a splicing assembly is provided between the outer ring body 1 and the inner ring body 2. The splicing assembly includes an alignment unit and a fixing unit.
[0026] The alignment unit includes a threaded ring 3 and an adjusting ring 5, and the fixing unit includes a bolt 9. The threaded ring 3 and the adjusting ring 5 are used to initially align and fix the outer ring 1 and the inner ring 2, and the bolt 9 is used to further reinforce the outer ring 1 and the inner ring 2.
[0027] Reference Figures 1-5 A threaded ring 3 is fixedly connected to one side of the inner ring 2. A first threaded groove 4 is opened on the side of the outer ring 1 near the inner ring 2. The outer wall of the threaded ring 3 and the inner wall of the first threaded groove 4 are threadedly connected. An adjusting ring 5 is rotatably connected to the outer ring 1. Multiple threaded holes 6 are opened inside the adjusting ring 5. The multiple threaded holes 6 are arranged in a ring array. Multiple second threaded grooves 7 are opened on the side of the inner ring 2 near the outer ring 1. The multiple second threaded grooves 7 are arranged in a ring array. A groove 8 is opened on one side of each of the multiple threaded holes 6. The structure of the multiple grooves 8 is adapted to the structure of multiple bolts 9. The number of bolts 9 is set to multiple. The multiple bolts 9 are correspondingly set to the multiple threaded holes 6. A sealing gasket is provided on the side of the adjusting ring 5 near the inner ring 2. One end of each of the multiple bolts 9 is threaded through the corresponding threaded hole 6 and then threadedly connected to the corresponding second threaded groove 7.
[0028] The splicing assembly allows for replacement of the outer ring 1 and inner ring 2 when they show wear. Specifically, when either the outer ring 1 or the inner ring 2 shows wear, first unscrew all the bolts 9 from the threaded hole 6 of the adjusting ring 5 and the second threaded groove 7 of the inner ring 2, so that the head of the bolt 9 is completely disengaged from the groove 8, thus rendering the reinforcement of the fixing unit ineffective. Then, rotate the adjusting ring 5 to offset the position of the threaded hole 6 on the adjusting ring 5 from the second threaded groove 7 of the inner ring 2, so as to avoid the adjusting ring 5 affecting the subsequent separation operation. Then, rotate the unworn ring (if the outer ring 1 is worn, rotate the inner ring 2; if the inner ring 2 is worn, rotate the outer ring 1) to unscrew the threaded ring 3 of the inner ring 2 from the first threaded groove 4 of the outer ring 1, thereby separating the worn ring from the unworn ring.
[0029] When installing a new ring, if the outer ring 1 is being replaced, align the threaded ring 3 of the unworn inner ring 2 with the first threaded groove 4 of the new outer ring 1, and rotate the inner ring 2 to screw the threaded ring 3 into the first threaded groove 4. Alignment and initial fixation are achieved through threaded engagement. If the inner ring 2 is being replaced, align the threaded ring 3 of the new inner ring 2 with the first threaded groove 4 of the unworn outer ring 1, and rotate the new inner ring 2 to screw the threaded ring 3 into the first threaded groove 4 for initial fixation. Then rotate the adjusting ring 5. The multiple threaded holes 6 on the adjusting ring 5 are aligned one-to-one with the multiple second threaded grooves 7 of the inner ring body 2 (the new inner ring body after replacement or the unworn inner ring body). At the same time, the sealing gasket on the side of the adjusting ring 5 closest to the inner ring body 2 is tightly fitted to the surface of the inner ring body 2. Then, multiple bolts 9 are passed through the threaded holes 6 and screwed into the second threaded grooves 7 until the heads of the bolts 9 are embedded in the grooves 8. The bolts 9 are used to further reinforce the ring body, ensuring that the newly replaced ring body is firmly connected to the unworn ring body and restoring the sealing performance of the ring gasket.
[0030] By using the splicing components, when either the outer ring 1 or the inner ring 2 becomes worn, there is no need to replace the entire sealing ring gasket. The worn part can be replaced individually simply by removing the bolt 9, rotating the adjusting ring 5, and unscrewing the threaded ring 3. This greatly reduces replacement costs and avoids resource waste. During installation, the threaded connection between the threaded ring 3 and the first threaded groove 4 allows for quick initial alignment. The rotation of the adjusting ring 5 ensures that the threaded hole 6 and the second threaded groove 7 are precisely aligned. The bolt 9 further reinforces the connection to ensure its stability. The entire process is convenient and requires no complicated tools, effectively shortening maintenance time. At the same time, this splicing method ensures that the replaced ring fits tightly with the unworn ring. The dual protection of threaded engagement and bolt reinforcement maintains the original sealing performance and ensures the normal operation of the equipment.
[0031] Working principle: When either the outer ring 1 or the inner ring 2 is worn, first unscrew all the bolts 9 from the threaded hole 6 of the adjusting ring 5 and the second threaded groove 7 of the inner ring 2, so that the head of the bolt 9 is completely disengaged from the groove 8, thus rendering the reinforcement effect of the fixing unit ineffective. Then rotate the adjusting ring 5 to offset the position of the threaded hole 6 on the adjusting ring 5 from the second threaded groove 7 of the inner ring 2, so as to avoid the adjusting ring 5 from affecting the subsequent separation operation. Then rotate the unworn ring (if the outer ring 1 is worn, rotate the inner ring 2; if the inner ring 2 is worn, rotate the outer ring 1) to unscrew the threaded ring 3 of the inner ring 2 from the first threaded groove 4 of the outer ring 1, thereby separating the worn ring from the unworn ring.
[0032] When installing a new ring, if the outer ring 1 is being replaced, align the threaded ring 3 of the unworn inner ring 2 with the first threaded groove 4 of the new outer ring 1, and rotate the inner ring 2 to screw the threaded ring 3 into the first threaded groove 4. Alignment and initial fixation are achieved through threaded engagement. If the inner ring 2 is being replaced, align the threaded ring 3 of the new inner ring 2 with the first threaded groove 4 of the unworn outer ring 1, and rotate the new inner ring 2 to screw the threaded ring 3 into the first threaded groove 4 for initial fixation. Then rotate the adjusting ring 5. The multiple threaded holes 6 on the adjusting ring 5 are aligned one-to-one with the multiple second threaded grooves 7 of the inner ring body 2 (the new inner ring body after replacement or the unworn inner ring body). At the same time, the sealing gasket on the side of the adjusting ring 5 closest to the inner ring body 2 is tightly fitted to the surface of the inner ring body 2. Then, multiple bolts 9 are passed through the threaded holes 6 and screwed into the second threaded grooves 7 until the heads of the bolts 9 are embedded in the grooves 8. The bolts 9 are used to further reinforce the ring body, ensuring that the newly replaced ring body is firmly connected to the unworn ring body and restoring the sealing performance of the ring gasket.
[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A metal weld lip sealing ring gasket with a spliced structure, comprising an outer ring body (1) and an inner ring body (2), characterized in that, A splicing assembly is provided between the outer ring (1) and the inner ring (2), the splicing assembly including an alignment unit and a fixing unit; The alignment unit includes a threaded ring (3) and an adjusting ring (5), and the fixing unit includes a bolt (9). The threaded ring (3) and the adjusting ring (5) are used to perform initial alignment and fixing of the outer ring body (1) and the inner ring body (2), and the bolt (9) is used to further reinforce the outer ring body (1) and the inner ring body (2).
2. The metal weld lip sealing ring gasket with a spliced structure according to claim 1, characterized in that: A threaded ring (3) is fixedly connected to one side of the inner ring (2), and a first threaded groove (4) is opened on the side of the outer ring (1) near the inner ring (2). The outer wall of the threaded ring (3) and the inner wall of the first threaded groove (4) are threadedly connected.
3. A metal weld lip sealing ring gasket with a spliced structure according to claim 1, characterized in that: The adjusting ring (5) is rotatably connected to the outer ring body (1), and the adjusting ring (5) has multiple threaded holes (6) inside, which are arranged in a ring array.
4. A metal weld lip sealing ring gasket with a spliced structure according to claim 1, characterized in that: The inner ring (2) has multiple second threaded grooves (7) on the side near the outer ring (1), and the multiple second threaded grooves (7) are arranged in a ring array.
5. A metal weld lip sealing ring gasket with a spliced structure according to claim 3, characterized in that: Each of the multiple threaded holes (6) has a groove (8) on one side, and the structure of the multiple grooves (8) is adapted to the structure of the multiple bolts (9).
6. A metal weld lip sealing ring gasket with a spliced structure according to claim 1, characterized in that: The number of bolts (9) is set to multiple, and the multiple bolts (9) are correspondingly arranged with multiple threaded holes (6).
7. A metal weld lip sealing ring gasket with a spliced structure according to claim 1, characterized in that: The adjusting ring (5) has a sealing gasket on the side near the inner ring (2).
8. A metal weld lip sealing ring gasket with a spliced structure according to claim 1, characterized in that: One end of each of the bolts (9) is threaded through the corresponding threaded hole (6) and then threadedly connected to the corresponding second threaded groove (7).