Reinforced sealing valve seat of welding ball valve
By introducing components such as sealing rings, elastic blocks, and anti-slip rings into welded ball valves, the problems of decreased sealing performance and insufficient structural strength in traditional welded ball valves have been solved, resulting in better sealing performance and stability, adaptability to high-pressure environments, and extended service life.
Patent Information
- Application Number
- CN202520709018.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-15
AI Technical Summary
Traditional welded ball valves suffer from reduced seat sealing performance, making them prone to leakage. They also lack structural strength, making it difficult to withstand high pressure. Furthermore, the sealing components are prone to shifting during frequent operation, affecting reliability and service life.
A reinforced sealing assembly including a sealing ring, an elastic block, a sliding column, a sliding cylinder, a fixing ring, and an anti-corrosion layer was designed. The sealing effect is enhanced by the inclined surface design and elastic structure, and the connection stability is ensured by the combination of anti-slip ring and spring, thereby improving the structural strength and durability of the valve seat.
It effectively prevents media leakage, enhances the structural strength of the valve seat, extends service life, ensures sealing performance and connection stability, adapts to high-pressure environments, prevents corrosion, and improves the overall reliability of welded ball valves.
Smart Images
Figure CN223868586U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve sealing technology, and in particular to a reinforced sealing valve seat for a welded ball valve. Background Technology
[0002] In modern industrial production, welded ball valves, as key control components in pipeline systems, are widely used in many fields such as petroleum, chemical, and natural gas. These fields have extremely high requirements for the safety and stability of pipeline transportation, and the sealing performance and overall reliability of welded ball valves directly affect whether the system can operate normally. Therefore, developing a reinforced sealing seat for welded ball valves has become an important research direction for improving their performance and meeting industrial needs.
[0003] Traditional welded ball valves typically feature a relatively simple seat design, relying on direct contact between the seat and the valve core for sealing. Their technical principle primarily involves the rotation of the valve core, causing it to engage or disengage from the seat, thereby controlling the flow of media. In terms of the sealing mechanism, they depend solely on the flatness of the seat and valve core surfaces and the contact pressure to prevent media leakage.
[0004] However, this traditional welded ball valve seat has several problems. During long-term use, the sealing performance of the seat gradually declines due to factors such as media erosion, pressure fluctuations, and temperature changes. Ordinary valve seats cannot withstand high-pressure environments, and gaps easily appear on the sealing surface, leading to media leakage. Furthermore, during frequent valve opening and closing operations, uneven stress on the sealing components can cause misalignment, which not only affects the sealing effect but also accelerates seat wear. In addition, the valve seat itself has limited structural strength and cannot withstand high pressures, further reducing the overall reliability and service life of the welded ball valve, posing safety hazards and economic losses to industrial production. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a reinforced sealing valve seat for welded ball valves, aiming to improve the problems of sealing, stability and strength of traditional welded ball valve seats, easy leakage of ordinary valve seats after long-term use or under high pressure, easy displacement of sealing components during opening and closing, poor structural strength and difficulty in bearing pressure.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a reinforced sealing valve seat for a welded ball valve, comprising a housing, a connecting block threadedly connected to the inner wall of the housing, a switch fixedly connected to one end of the connecting block, a connecting rod fixedly connected to the other end of the connecting block, a valve core fixedly connected to one end of the connecting rod, a valve seat body provided on the outer wall of the valve core, a reinforced sealing assembly provided on the inner side of the valve seat body, and a connecting assembly provided on the upper outer side of the valve seat body;
[0007] The reinforced sealing assembly includes a sealing ring, the outer wall of which is disposed on the inner side of the valve seat body. The surface of the valve seat body is coated with an anti-corrosion layer. A sliding column is fixedly connected to the outer wall of the sealing ring, and a sliding cylinder is slidably connected to the outer wall of the sliding column. Five elastic blocks are fixedly connected to the inner side of the valve seat body, and five reinforcing ribs are provided on the inner wall of the valve seat body.
[0008] Furthermore, the connecting assembly includes a fixing ring, which is disposed on the upper side of the outer side of the valve seat body. Five springs are fixedly connected to the inner outer side of the valve seat body. A push ring is fixedly connected to one end of each spring. A fixing groove is provided on the outer wall of the valve core. An anti-slip ring is fitted on the outer wall of the fixing ring.
[0009] Furthermore, the outer wall of the retaining ring is threaded into the inside of the retaining groove, and the retaining ring is used to connect the valve seat body and the valve core.
[0010] Furthermore, the outer wall of the push ring is slidably connected to the inner outer side of the valve seat body, and the push ring is used to compress the spring.
[0011] Furthermore, the outer wall of the anti-slip ring is slidably connected inside the fixing groove, and the anti-slip ring is used to prevent the fixing ring from shaking and disengaging from the fixing groove.
[0012] Furthermore, the five springs are arranged in a circular array on the outer side of the valve seat body, and the springs are used to push the push ring to slide.
[0013] Furthermore, the outer edge of the sealing ring is beveled at a 45-degree angle to further conform to the valve core.
[0014] Furthermore, the five elastic blocks are arranged in a ring array on the inner side of the valve seat body, and the elastic blocks are used to push the sealing ring to fit against the valve core.
[0015] Furthermore, one end of the slide cylinder is fixedly connected to the inner side of the valve seat body, and the slide cylinder is used for sliding the slide column.
[0016] Furthermore, the anti-corrosion layer is made of polytetrafluoroethylene.
[0017] This utility model has the following beneficial effects:
[0018] 1. In this utility model, the operating switch drives the valve core to rotate via the connecting block and connecting rod. When the valve core is closed, the 45-degree inclined surface of the sealing ring precisely fits the valve core, and the elastic block pushes it into tight contact. The slide column slides smoothly inside the slide cylinder, solving the sealing, stability, and strength problems of traditional welded ball valve seats. Ordinary valve seats are prone to leakage after long-term use or under high pressure, the sealing components are prone to displacement during opening and closing, and the structural strength is poor, making it difficult to withstand pressure. This invention achieves enhanced sealing effect, effectively prevents media leakage, enhances the structural strength of the valve seat, enabling it to withstand greater pressure, and extends the service life of the valve seat. At the same time, it prevents the valve seat body from being corroded by the media, further improving the durability of the valve seat.
[0019] 2. In this utility model, rotating the valve seat body drives the fixing ring into the fixing groove of the valve core. The fixing ring squeezes the pushing ring, causing the spring to contract. The spring rebounds and pushes the fixing ring. The anti-slip ring prevents the two from separating, thus ensuring that a certain clamping force is maintained between the valve seat body and the valve core, further improving the sealing performance. At the same time, the anti-slip ring prevents the fixing ring from shaking and separating from the fixing groove, ensuring the stability of the connection and enabling the welded ball valve to maintain a good working condition during long-term use. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of a reinforced sealing valve seat for a welded ball valve proposed in this utility model.
[0021] Figure 2 This is a schematic diagram of the valve core portion of the reinforced sealing valve seat of a welded ball valve proposed in this utility model.
[0022] Figure 3 This is a schematic diagram of the elastic block portion of the reinforced sealing valve seat of a welded ball valve proposed in this utility model.
[0023] Figure 4 This is a schematic diagram of the fixing ring portion of the reinforced sealing valve seat of a welded ball valve proposed in this utility model.
[0024] Figure 5 This is a schematic diagram of the anti-corrosion layer structure of the reinforced sealing valve seat of a welded ball valve proposed in this utility model.
[0025] Legend:
[0026] 1. Housing; 2. Switch; 3. Connecting block; 4. Connecting rod; 5. Valve core; 6. Anti-corrosion layer; 7. Reinforcing rib; 8. Valve seat body; 9. Sealing ring; 10. Elastic block; 11. Sliding column; 12. Sliding cylinder; 13. Push ring; 14. Spring; 15. Anti-slip ring; 16. Fixing ring; 17. Fixing groove. Detailed Implementation
[0027] 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.
[0028] Reference Figure 1 - Figure 5 The present invention provides an embodiment of a reinforced sealing valve seat for a welded ball valve, comprising a housing 1, a connecting block 3 threadedly connected to the inner wall of the housing 1, a switch 2 fixedly connected to one end of the connecting block 3, a connecting rod 4 fixedly connected to the other end of the connecting block 3, a valve core 5 fixedly connected to one end of the connecting rod 4, a valve seat body 8 provided on the outer wall of the valve core 5, a reinforced sealing component provided on the inner side of the valve seat body 8 to improve the sealing performance of the connection between the valve seat body 8 and the valve core 5, and a connecting component provided on the upper outer side of the valve seat body 8 to connect the valve seat body 8 and the valve core 5.
[0029] The enhanced sealing assembly includes a sealing ring 9, the outer wall of which is located inside the valve seat body 8. The surface of the valve seat body 8 is coated with an anti-corrosion layer 6. A sliding column 11 is fixedly connected to the outer wall of the sealing ring 9. A sliding cylinder 12 is slidably connected to the outer wall of the sliding column 11. Five elastic blocks 10 are fixedly connected to the inner side of the valve seat body 8. Five reinforcing ribs 7 are provided on the inner wall of the valve seat body 8.
[0030] Specifically, when the switch 2 is operated, the switch 2 drives the connecting block 3, the connecting block 3 drives the connecting rod 4 to rotate, and the connecting rod 4 drives the valve core 5 to rotate. Inside the valve seat body 8, when the valve core 5 rotates to close, the outer 45-degree inclined surface of the sealing ring 9 fits better with the valve core 5. At the same time, the five elastic blocks 10 distributed in a ring array on the inner side of the valve seat body 8 push the sealing ring 9 to fit tightly with the valve core 5. The sliding column 11 on the sealing ring 9 slides in the sliding cylinder 12 to ensure the stable movement of the sealing ring 9.
[0031] Reference Figure 1 and Figure 4The connecting assembly includes a retaining ring 16, which is located on the upper outer side of the valve seat body 8. Five springs 14 are fixedly connected to the inner and outer sides of the valve seat body 8. A push ring 13 is fixedly connected to one end of each spring 14. A retaining groove 17 is formed on the outer wall of the valve core 5. An anti-slip ring 15 is fitted on the outer wall of the retaining ring 16, and the outer wall of the retaining ring 16 is threaded into the retaining groove 17. The retaining ring 16 is used to connect the valve seat body 8 and the valve core 5. The outer wall of the push ring 13 is slidably connected to the inner and outer sides of the valve seat body 8. The push ring 13 is used to compress the springs 14. The outer wall of the anti-slip ring 15 is slidably connected to the retaining groove 17. The anti-slip ring 15 is used to prevent the retaining ring from being fixed. Ring 16 and fixing groove 17 shake and detach. Five springs 14 are arranged in a ring array on the inner outer side of valve seat body 8. Springs 14 are used to push push ring 13 to slide. The outer edge of sealing ring 9 is set with a bevel at 45 degrees to further fit with valve core 5. Five elastic blocks 10 are arranged in a ring array on the inner side of valve seat body 8. Elastic blocks 10 are used to push sealing ring 9 to fit with valve core 5. One end of slide cylinder 12 is fixedly connected to the inner side of valve seat body 8. Slide cylinder 12 is used for sliding column 11. Anti-corrosion layer 6 is made of polytetrafluoroethylene to prevent valve seat body 8 from being corroded by the medium and extend valve seat service life.
[0032] Specifically, when connecting the valve seat body 8 to the valve core 5, rotating the valve seat body 8 causes the fixing ring 16 to connect with the fixing groove 17 on the valve core 5. When the fixing ring 16 enters the fixing groove 17, it squeezes the push ring 13. The push ring 13 squeezes the spring 14 to contract it. The spring 14 rebounds and pushes the push ring 13. The push ring 13 pushes the fixing ring 16 to fit tightly with the fixing groove 17. After the fixing ring 16 is fully in the fixing groove 17, it squeezes the anti-slip ring 15. The anti-slip ring 15 rebounds to prevent the fixing ring 16 from shaking and separating from the fixing groove 17.
[0033] Working principle: When a reinforced sealing valve seat for a welded ball valve is required, when switch 2 is operated, switch 2 drives connecting rod 4 to rotate via connecting block 3. Connecting rod 4 then drives valve core 5 to rotate. Inside the valve seat body 8, the outer edge of sealing ring 9 is designed with a 45-degree bevel. During the rotation and closing process of valve core 5, it can better fit with valve core 5. At the same time, five elastic blocks 10 arranged in a ring array inside the valve seat body 8 will push sealing ring 9 to fit tightly with valve core 5, further enhancing the sealing effect. The sliding column 11 connected to sealing ring 9 slides in sliding cylinder 12, ensuring that sealing ring 9 can move stably when pushed by elastic block 10. The five reinforcing ribs 7 set in valve seat body 8 enhance the structural strength of valve seat body 8. The polytetrafluoroethylene anti-corrosion layer 6 coated on the surface of valve seat body 8 prevents valve seat body 8 from being corroded by the medium and extends the service life of valve seat.
[0034] Furthermore, when it is necessary to connect the valve seat body 8 and the valve core 5, the valve seat body 8 is rotated to drive the fixed ring 16 to connect with the fixed groove 17. When the fixed ring 16 enters the fixed groove 17, the fixed ring 16 squeezes the push ring 13, the push ring 13 squeezes the spring 14 to contract, and then the spring 14 pushes the push ring 13 to move. The push ring 13 pushes the fixed ring 16 to fit tightly with the fixed groove 17, so that the valve seat body 8 and the valve core 5 maintain a certain pressure, further ensuring the sealing performance. When the fixed ring 16 is fully inside the fixed groove 17, it will squeeze the anti-slip ring 15. The anti-slip ring 15 has a certain elasticity, and the anti-slip ring 15 rebounds to prevent the fixed ring 16 from shaking and separating from the fixed groove 17.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A reinforced sealing valve seat for a welded ball valve, comprising a housing (1), characterized in that: The inner wall of the outer shell (1) is threaded with a connecting block (3). One end of the connecting block (3) is fixedly connected to a switch (2), and the other end of the connecting block (3) is fixedly connected to a connecting rod (4). One end of the connecting rod (4) is fixedly connected to a valve core (5). The outer wall of the valve core (5) is provided with a valve seat body (8). The inner side of the valve seat body (8) is provided with a reinforced sealing component, and the upper side of the valve seat body (8) is provided with a connecting component. The enhanced sealing assembly includes a sealing ring (9), the outer wall of which is disposed inside the valve seat body (8), the surface of which is coated with an anti-corrosion layer (6), a sliding column (11) is fixedly connected to the outer wall of the sealing ring (9), a sliding cylinder (12) is slidably connected to the outer wall of the sliding column (11), five elastic blocks (10) are fixedly connected to the inner side of the valve seat body (8), and five reinforcing ribs (7) are provided on the inner wall of the valve seat body (8).
2. The reinforced sealing valve seat of a welded ball valve according to claim 1, characterized in that: The connecting assembly includes a fixing ring (16), which is disposed on the upper side of the valve seat body (8). Five springs (14) are fixedly connected to the inner outer side of the valve seat body (8). A push ring (13) is fixedly connected to one end of each spring (14). A fixing groove (17) is provided on the outer wall of the valve core (5). An anti-slip ring (15) is sleeved on the outer wall of the fixing ring (16).
3. The reinforced sealing valve seat of a welded ball valve according to claim 2, characterized in that: The outer wall of the retaining ring (16) is threaded into the inside of the retaining groove (17), and the retaining ring (16) is used to connect the valve seat body (8) and the valve core (5).
4. The reinforced sealing valve seat of a welded ball valve according to claim 2, characterized in that: The outer wall of the push ring (13) is slidably connected to the inner outer side of the valve seat body (8), and the push ring (13) is used to compress the spring (14).
5. The reinforced sealing valve seat of a welded ball valve according to claim 2, characterized in that: The outer wall of the anti-slip ring (15) is slidably connected to the inside of the fixing groove (17). The anti-slip ring (15) is used to prevent the fixing ring (16) from shaking and disengaging from the fixing groove (17).
6. The reinforced sealing valve seat of a welded ball valve according to claim 2, characterized in that: Five springs (14) are arranged in a ring array on the outside of the valve seat body (8), and the springs (14) are used to push the push ring (13) to slide.
7. The reinforced sealing valve seat of a welded ball valve according to claim 1, characterized in that: The outer edge of the sealing ring (9) is beveled at a 45-degree angle to further fit with the valve core (5).
8. The reinforced sealing valve seat of a welded ball valve according to claim 1, characterized in that: Five elastic blocks (10) are arranged in a ring array inside the valve seat body (8). The elastic blocks (10) are used to push the sealing ring (9) to fit against the valve core (5).
9. The reinforced sealing valve seat of a welded ball valve according to claim 1, characterized in that: One end of the slide cylinder (12) is fixedly connected to the inner side of the valve seat body (8), and the slide cylinder (12) is used for sliding of the slide column (11).
10. The reinforced sealing valve seat of a welded ball valve according to claim 1, characterized in that: The anti-corrosion layer (6) is made of polytetrafluoroethylene.