Novel three-way valve sealing ring with corrugated section
By designing a corrugated cross-section sealing ring for the three-way valve, the problem of reduced sealing performance caused by permanent compression deformation of the sealing ring was solved, achieving higher sealing and heat insulation performance, adapting to irregular surfaces, reducing leakage risk, and enhancing pressure resistance stability and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO TUOPU GROUP CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-05-15
AI Technical Summary
Existing sealing rings are prone to loss of resilience due to permanent deformation caused by compression during long-term use, resulting in decreased sealing performance, leakage, inconvenience in use, and low reliability.
A corrugated section three-way valve sealing ring was designed. The upper and lower parts of the sealing ring are set as corrugated, and a sealing mechanism is added to improve plasticity and sealing performance. The corrugated design forms multiple sealing lines and a natural heat insulation layer to disperse pressure and enhance pressure resistance stability.
It improves the sealing effect and heat insulation of the sealing ring, adapts to irregular surfaces, reduces the risk of leakage, enhances compressive stability, avoids local material yielding, and is convenient and reliable to use.
Smart Images

Figure CN224245412U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sealing, and in particular to a novel corrugated cross-section sealing ring for a three-way valve. Background Technology
[0002] A sealing ring is a device used to seal pipe connections and has a wide range of applications in pipe connections. The sealing rings in the existing technology are generally O-rings, which have the following problems during use: under the action of external pressure during long-term use, they are prone to permanent compression deformation, loss of elasticity, resulting in decreased sealing performance and leakage. They are also inconvenient to use and have low reliability and practicality. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a novel corrugated cross-section three-way valve sealing ring, which improves the sealing and heat insulation properties of the sealing ring by setting the upper and lower parts of the sealing ring to a wave shape, and is convenient to use and highly practical.
[0004] This utility model discloses a novel corrugated cross-section three-way valve sealing ring, comprising a sealing ring; both the upper and lower parts of the sealing ring are provided with sealing mechanisms, which have the functions of improving plasticity and sealing performance; by adding sealing mechanisms to the upper and lower parts of the sealing ring, compared with the prior art, the plasticity of the sealing ring is improved, making the sealing ring less prone to deformation after being subjected to extrusion pressure for a long time, thereby improving the sealing effect of the sealing ring, making it convenient to use, and highly reliable and practical.
[0005] Preferably, the sealing mechanism is a corrugated unit, the corrugated unit being wavy in shape and made of the same material as the sealing ring. The wavy design allows the sealing ring to form multiple sealing lines when compressed, significantly reducing leakage. Furthermore, due to the wavy surface of the sealing ring, the corrugated unit's elastic deformation capability makes it superior to O-rings in compensating for microscopic unevenness of the mounting surface, making it more suitable for irregular surfaces with fewer limitations. In this case, the corrugated unit can distribute concentrated pressure into multi-node loads, resulting in a more uniform distribution of contact stress, enhancing the compressive stability of the sealing ring, and effectively preventing extrusion failure caused by localized material yielding. Moreover, the multiple air cavities formed in the corrugated unit can create a natural heat insulation layer, effectively slowing down the heat transfer rate. The corrugated heat insulation layer can widen the temperature difference at the sealing interface, preventing thermal shock to the component.
[0006] Preferably, the multiple wave shapes on the corrugated unit are consistent and continuous; due to the symmetry and continuity of the multiple wave shapes, the symmetrical and continuous peak and valley cross sections can resist the torsional deformation caused by installation deflection or vibration, improve the shear strength of the material, and maintain uniform contact of the sealing surface.
[0007] Preferably, a sealing strip is provided in the middle of the sealing ring.
[0008] Preferably, there are two sealing strips, which divide the interior of the sealing ring into three sealing cavities. With the above arrangement, since there are three sealing cavities inside the sealing ring, the sealing ring can seal the pipeline on the three-way valve. In use, the sealing ring is assembled on the three-way valve, so that the three sealing cavities on the sealing ring seal the three pipelines of the three-way valve respectively. Then, the three-way valve with the sealing ring is installed on the manifold, so that the sealing ring is inserted into the groove of the manifold, thus completing the installation of the sealing ring.
[0009] Preferably, both the left and right parts of the sealing ring are arc-shaped; through the above arrangement, the shape of the left and right parts of the sealing ring is more compatible with the shape of the pipelines on the left and right sides of the three-way valve, thereby improving the sealing effect of the three-way valve.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting the upper and lower parts of the sealing ring to a wave shape, the sealing performance and heat insulation performance of the sealing ring are improved, making it convenient to use and highly practical. Attached Figure Description
[0011] Figure 1 This is a first cross-sectional view of the present invention;
[0012] Figure 2 This is a schematic diagram of the isometric structure of this utility model;
[0013] Figure 3 This is a second sectional view of the present invention.
[0014] Figure 4 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 5 This is a schematic diagram of a three-way valve;
[0016] The attached diagram is labeled as follows: 1. Sealing ring; 2. Sealing strip; 3. Three-way valve. Detailed Implementation
[0017] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0018] Example
[0019] like Figures 1 to 5The corrugated cross section three-way valve sealing ring of this utility model includes a sealing ring 1. Both the upper and lower parts of the sealing ring 1 are provided with sealing mechanisms. The sealing mechanisms have the functions of improving plasticity and sealing performance. By adding sealing mechanisms to the upper and lower parts of the sealing ring 1, compared with the prior art, the plasticity of the sealing ring 1 is improved, making the sealing ring 1 less prone to deformation after being subjected to extrusion pressure for a long time, thus improving the sealing effect of the sealing ring 1. It is convenient to use and has high reliability and practicality.
[0020] like Figure 1 The sealing mechanism is a corrugated unit, which is wavy in shape and made of the same material as the sealing ring 1. The wavy design allows the sealing ring 1 to form multiple sealing lines when compressed, significantly reducing air leakage. Furthermore, due to the wavy surface of the sealing ring 1, the corrugated unit's elastic deformation capability makes it superior to O-rings in compensating for microscopic unevenness of the mounting surface, making it more suitable for irregular surfaces with fewer limitations. In this case, the corrugated unit can distribute concentrated pressure into multiple nodes, resulting in a more uniform distribution of contact stress, enhancing the compressive stability of the sealing ring, and effectively preventing extrusion failure caused by localized material yielding. Moreover, the multiple air cavities formed in the corrugated unit can create a natural heat insulation layer, effectively slowing down the heat transfer rate. The corrugated heat insulation layer can widen the temperature difference at the sealing interface, preventing thermal shock to the component.
[0021] The corrugated unit has multiple waves with the same shape and the waves are continuous. Due to the symmetry and continuity of the multiple waves, the symmetrical and continuous peak and valley sections can resist the torsional deformation caused by installation deflection or vibration, improve the shear strength of the material, and maintain the uniform fit of the sealing surface.
[0022] A sealing strip 2 is provided in the middle of the sealing ring 1. There are two sealing strips 2, which divide the interior of the sealing ring 1 into three sealing cavities. With the above configuration, since the sealing ring 1 has three sealing cavities, it can seal the pipeline on the three-way valve 3. In use, the sealing ring 1 is assembled on the three-way valve 3, so that the three sealing cavities on the sealing ring 1 seal the three pipelines of the three-way valve 3 respectively. Then, the three-way valve 3 with the sealing ring 1 is installed with the manifold, so that the sealing ring 1 is inserted into the groove of the manifold, thus completing the installation of the sealing ring 1.
[0023] Both the left and right sides of the sealing ring 1 are arc-shaped; through the above settings, the shape of the left and right sides of the sealing ring 1 is more compatible with the shape of the pipelines on the left and right sides of the three-way valve, thereby improving the sealing effect of the three-way valve 3.
[0024] In summary, the main beneficial effects of this case are:
[0025] 1. The air cavity formed by the corrugations is a natural heat insulation layer that can effectively reduce heat transfer and prevent thermal shock to components.
[0026] 2. The corrugated design forms multiple sealing lines through multi-point contact, increases the contact area, improves the sealing effect, and significantly reduces the risk of leakage.
[0027] 3. Corrugated units can disperse concentrated pressure, making the contact stress distribution more uniform and avoiding extrusion failure caused by local material yielding.
[0028] 4. It can adapt to irregular surfaces, and the elastic deformation capability of the corrugated unit has a compensating effect on the micro-unevenness of the mounting surface.
[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A novel corrugated cross-section three-way valve sealing ring, comprising a sealing ring (1); characterized in that, The sealing ring (1) is provided with sealing mechanisms on both the upper and lower parts. The sealing mechanisms have the functions of improving plasticity and sealing performance. The sealing mechanism is a corrugated unit. The shape of the corrugated unit is wavy. The corrugated unit is made of the same material as the sealing ring (1). The multiple wavy shapes on the corrugated unit are consistent and continuous.
2. The novel corrugated cross-section three-way valve sealing ring as described in claim 1, characterized in that, A sealing strip (2) is provided in the middle of the sealing ring (1).
3. The novel corrugated cross-section three-way valve sealing ring as described in claim 2, characterized in that, The number of sealing strips (2) is two, and the two sealing strips (2) divide the interior of the sealing ring (1) into three sealing cavities.
4. The novel corrugated cross-section three-way valve sealing ring as described in claim 3, characterized in that, The sealing ring (1) has arc-shaped left and right sides.