Forged metal hard sealing floating ball valve
By designing a forged metal hard seal structure in the floating ball valve, and using the cooperation of slots, rubber inserts and springs, the problem of thinning and falling off of the floating ball valve gasket due to wear is solved, achieving a more stable sealing effect and higher sealing performance.
Patent Information
- Application Number
- CN202422094525.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-28
AI Technical Summary
During the opening and closing of existing floating ball valves, the sealing gasket becomes thinner due to wear, resulting in unstable installation of the sealing gasket, which may lead to media leakage.
A forged metal hard seal floating ball valve is designed. By opening a slot on one side of the valve pipe and setting a rubber insert on one side of the rubber sealing gasket, the rubber insert is fixed in the slot through the rebound force of the spring to avoid falling off.
It effectively avoids the problem of rubber sealing gasket falling off or deforming due to wear, ensures the stability of the sealing gasket, prevents medium leakage, and improves the sealing performance of the valve.
Smart Images
Figure CN222977465U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of floating ball valves, in particular to a forged metal hard-sealed floating ball valve. Background Technique
[0002] The sphere of a floating ball valve is floating. Under the action of the medium pressure, the sphere can produce a certain displacement and tightly press on the sealing surface at the outlet end to ensure the sealing at the outlet end. The structure of the floating ball valve is simple and the sealing performance is good. However, all the loads of the working medium borne by the sphere are transmitted to the outlet sealing ring. Therefore, it is necessary to consider whether the sealing ring material can withstand the working load of the sphere medium. When subjected to a high-pressure impact, the sphere may shift. This structure is generally used for medium and low-pressure ball valves. The main characteristics of the ball valve are that its structure is compact, the sealing is reliable, the structure is simple, the maintenance is convenient, the sealing surface and the spherical surface are often in a closed state, not easily eroded by the medium, easy to operate and maintain, suitable for general working media such as water, solvents, acids and natural gas, and also suitable for media with harsh working conditions such as oxygen, hydrogen peroxide, methane and ethylene, and is widely used in various industries.
[0003] During the opening and closing process of the existing floating ball valve, the outer side of the ball valve inside will continuously wear the sealing gaskets placed on both sides of the outlet. After long-term use, the thickness of the sealing gaskets will become thinner, thus affecting the stability of the installation of the sealing gaskets, and resulting in the misalignment of the sealing gaskets together with the ball valve during the rotation process, leading to the leakage of the medium.
[0004] Therefore, a forged metal hard-sealed floating ball valve is specifically proposed. Content of the Utility Model
[0005] The purpose of the present utility model is to provide a forged metal hard-sealed floating ball valve to solve the problems raised in the above-mentioned background technology. To achieve the above purpose, the present utility model provides the following technical solutions: A forged metal hard-sealed floating ball valve includes a first valve body, a second valve body, and a rubber gasket. One end of the first valve body is welded with a second flange, one end of the second valve body is welded with a first flange, and a sealing groove is welded on the top of the first valve body, and the sealing groove is communicated with the inside of the first valve body. It is characterized in that: a sphere is installed inside the first valve body, a first valve pipeline is opened on one side of the first valve body, a second valve pipeline is opened on one side of the second valve body, two slots are respectively opened on one side of the first valve pipeline and the second valve pipeline, two rubber inserts are provided on one side of the rubber gasket, a plug rod is respectively slidably installed inside the first valve pipeline and the second valve pipeline, a pull plate is welded to one end of the plug rod, a sliding rod is respectively welded on the outer sides of both ends of the pull plate, a sliding groove for the sliding rod to slide is respectively opened inside the first valve pipeline and the second valve pipeline, a spring is sleeved on the outer side of the sliding rod, the spring is located inside the sliding groove, a plurality of limiting teeth are fixedly arranged at equal intervals at one end of the plug rod, and one end of the plug rod extends into the slot.
[0006] Preferably, a plurality of fixing bolts for fixing are welded on one side of the second flange, and the fixing bolts are used in cooperation with the first flange, and a nut is threadedly engaged and connected to the outer side of the fixing bolt.
[0007] Preferably, a movable groove is opened on the top of the sphere, and a valve rod for controlling the sphere is slidably installed inside the movable groove.
[0008] Preferably, one end of the valve rod extends into the sealing groove, and one end of the valve rod extends out of the sealing groove and is fixed to the control rod.
[0009] Preferably, the top of the plug rod is arc-shaped, and the side view of the rubber insert and the slot is also arc-shaped.
[0010] Preferably, the pull plate is arc-shaped, and the top of the pull plate is in contact with the inner walls of the first valve pipeline and the second valve pipeline.
[0011] Compared with the prior art, the present utility model provides a forged metal hard-sealed floating ball valve, which has the following beneficial effects:
[0012] By inserting a rubber insert into the interior of the slot, when the pull plate is pulled, the sliding rod will extend out of the interior of the chute, while compressing the spring installed on the outside. When the pull plate is released, the compressed spring generates a rebound force to push one end of the insertion rod back into the interior of the slot. Through the limiting teeth, the rubber insert inserted into the interior of the slot can be tightly pressed inside the slot, preventing the rubber insert from falling off the interior of the slot. When the surface of the rubber gasket comes into contact with the outside of the sphere and wears and gradually thins, fixing the rubber insert can prevent the rubber gasket from falling off and deforming at one end of the first valve pipeline, thereby ensuring the stability of the rubber gasket installation and preventing the leakage of the medium inside the pipeline, improving the sealing performance of the valve. Brief Description of the Drawings
[0013] Figure 1 Schematic diagram of the main structure of the present utility model;
[0014] Figure 2 Schematic side view structure diagram of the first valve pipeline of the present utility model;
[0015] Figure 3 Schematic side view structure diagram of the first valve body of the present utility model;
[0016] Figure 4 For the present utility model Figure 1 Enlarged structure diagram at position A in the present utility model.
[0017] In the figure: 1. First valve body; 2. First valve pipeline; 3. Sealing groove; 4. Control rod; 5. Valve rod; 6. Activity groove; 7. Second valve body; 8. Second valve pipeline; 9. First flange; 10. Fixed bolt; 11. Nut; 12. Second flange; 13. Chute; 14. Limiting teeth; 15. Slot; 16. Rubber insert; 17. Sphere; 18. Sliding rod; 19. Rubber gasket; 20. Insertion rod; 21. Pull plate. Detailed Description of the Preferred Embodiment
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0019] Embodiment 1: It includes a first valve body 1, a second valve body 7 and a rubber gasket 19. A second flange 12 is welded to one end of the first valve body 1, and a first flange 9 is welded to one end of the second valve body 7. A sealing groove 3 is welded to the top of the first valve body 1, and the sealing groove 3 communicates with the inside of the first valve body 1. A sphere 17 is installed inside the first valve body 1. A first valve pipeline 2 is provided on one side of the first valve body 1, and a second valve pipeline 8 is provided on one side of the second valve body 7. Two slots 15 are respectively provided on one side of the first valve pipeline 2 and the second valve pipeline 8. Two rubber inserts 16 are provided on one side of the rubber gasket 19. A plug rod 20 is slidably installed inside the first valve pipeline 2 and the second valve pipeline 8 respectively. A pull plate 21 is welded to one end of the plug rod 20. A slide rod 18 is welded to the outer sides of both ends of the pull plate 21. A chute 13 for the slide rod 18 to slide is respectively provided inside the first valve pipeline 2 and the second valve pipeline 8. A spring is sleeved on the outer side of the slide rod 18, and the spring is located inside the chute 13. A plurality of limiting teeth 14 are fixedly arranged at equal intervals at one end of the plug rod 20, and one end of the plug rod 20 extends into the slot 15.
[0020] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, since two slots 15 are respectively provided on one side of the first valve pipe 2 and the second valve pipe 8, when the rubber gasket 19 is installed on the outer sides of one ends of the first valve pipe 2 and the second valve pipe 8, because two rubber inserts 16 are fixed on one side of the rubber gasket 19, the two rubber inserts 16 can be respectively inserted into the slots 15. Before the rubber inserts 16 are inserted into the slots 15, it is necessary to pull the pull plate 21 to extract one end of the insertion rod 20 from the inside of the slot 15, so as to ensure that the rubber inserts 16 can be normally inserted into the slots 15. When the rubber inserts 16 are inserted into the slots 15, release the pull plate 21. Since the slide rods 18 installed on both sides of the pull plate 21 are slidably installed inside the chute 13 and springs are installed on the outer sides of the slide rods 18, when the pull plate 21 is pulled, the slide rods 18 will extend out of the inside of the chute 13 and compress the springs installed on the outer sides at the same time. When the pull plate 21 is released, the compressed springs generate a rebounding force to push one end of the insertion rod 20 back into the slot 15 again. Since a plurality of limiting teeth 14 are installed at equal intervals at one end of the insertion rod 20, the rubber inserts 16 inserted into the slots 15 can be tightly pressed inside the slots 15 through the limiting teeth 14, avoiding the situation that the rubber inserts 16 fall off from the inside of the slots 15. Therefore, when the two rubber inserts 16 installed on one side of the rubber gasket 19 are simultaneously fixed inside the slots 15, the stability of the installation of the rubber gasket 19 can be ensured. When the surface of the rubber gasket 19 is gradually worn thin by the sphere 17, the fixing of the rubber inserts 16 can avoid the situation that the rubber gasket 19 falls off and deforms from one end of the first valve pipe 2, thus ensuring the stability of the installation of the rubber gasket 19 and avoiding the leakage of the medium inside the pipe, and improving the sealing performance of the valve.
[0021] Embodiment 2: A plurality of fixing bolts 10 for fixing are welded on one side of the second flange 12, and the fixing bolts 10 are used in cooperation with the first flange 9. A nut 11 is threadedly engaged on the outer side of the fixing bolt 10. An activity groove 6 is provided at the top of the sphere 17, and a valve rod 5 for controlling the sphere 17 is slidably installed inside the activity groove 6. One end of the valve rod 5 extends into the sealing groove 3, and one end of the valve rod 5 extends out of the inside of the sealing groove 3 and is fixed to the control rod 4. The top of the insertion rod 20 is arc-shaped, and the side view of the rubber insert 16 and the slot 15 is also arc-shaped. The pull plate 21 is arc-shaped, and the top of the pull plate 21 fits between the inner walls of the first valve pipe 2 and the second valve pipe 8.
[0022] Specifically, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown in the figure, when installing the valve, first fix the two rubber gaskets 19 at one end of the first valve pipe 2 and the second valve pipe 8 respectively. Then, place the sphere 17 inside the first valve body 1, insert the bottom end of the valve stem 5 into the movable slot 6. Subsequently, connect the first flange 9 welded to one side of the second valve body 7 and the second flange 12 welded to one side of the first valve body 1 through flanges, thus completing the installation of the valve. Since the top end of the insertion rod 20 is arc-shaped, the stability of the rubber insertion piece 16 in the slot 15 can be further improved by the insertion rod 20 with an arc-shaped top end.
[0023] Working principle: When installing the valve, first fix the two rubber gaskets 19 at one end of the first valve pipe 2 and the second valve pipe 8 respectively. Since two slots 15 are respectively opened on one side of the first valve pipe 2 and the second valve pipe 8, when installing the rubber gasket 19 on the outside of one end of the first valve pipe 2 and the second valve pipe 8, because two rubber insertion pieces 16 are fixed on one side of the rubber gasket 19, the two rubber insertion pieces 16 can be respectively inserted into the slots 15. Before the rubber insertion pieces 16 are inserted into the slots 15, it is necessary to pull the pull plate 21 to extract one end of the insertion rod 20 from the slot 15, so as to ensure that the rubber insertion pieces 16 can be normally inserted into the slots 15. When the rubber insertion pieces 16 are inserted into the slots 15, release the pull plate 21. Since the slide rods 18 installed on both sides of the pull plate 21 are slidably installed inside the slide grooves 13, and springs are installed on the outside of the slide rods 18, when pulling the pull plate 21, the slide rods 18 will extend out of the slide grooves 13 and compress the springs installed on the outside at the same time. When the pull plate 21 is released, the compressed springs generate a rebound force to push one end of the insertion rod 20 back into the slot 15. Since a plurality of limiting teeth 14 are installed at equal intervals at one end of the insertion rod 20, the rubber insertion pieces 16 inserted into the slots 15 can be tightly pressed inside the slots 15 through the limiting teeth 14, avoiding the situation that the rubber insertion pieces 16 fall off from the slots 15. Therefore, when the two rubber insertion pieces 16 installed on one side of the rubber gasket 19 are simultaneously fixed inside the slots 15, the stability of the rubber gasket 19 installation can be ensured. When the rubber gasket 19 gradually becomes thinner due to wear by the sphere 17 on the surface, the fixing of the rubber insertion pieces 16 can avoid the situation that the rubber gasket 19 falls off and deforms from one end of the first valve pipe 2, thus ensuring the stability of the rubber gasket 19 installation and avoiding the leakage of the medium inside the pipe, improving the sealing performance of the valve. Subsequently, connect the first flange 9 welded to one side of the second valve body 7 and the second flange 12 welded to one side of the first valve body 1 through flanges, thus completing the installation of the valve. Just connect the two ends of the pipe and the valve.
[0024] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.
Claims
1. A forged metal hard-seal floating ball valve, comprising a first valve body (1), a second valve body (7) and a rubber sealing gasket (19), wherein a second flange (12) is welded to one end of the first valve body (1), a first flange (9) is welded to one end of the second valve body (7), a sealing groove (3) is welded to the top of the first valve body (1), and the sealing groove (3) is connected to the interior of the first valve body (1), and is characterized in that: A ball (17) is installed inside the first valve body (1), a first valve pipe (2) is opened on one side of the first valve body (1), a second valve pipe (8) is opened on one side of the second valve body (7), two slots (15) are opened on one side of the first valve pipe (2) and the second valve pipe (8), two rubber inserts (16) are opened on one side of the rubber sealing pad (19), a plug rod (20) is slidably installed inside the first valve pipe (2) and the second valve pipe (8), a pull plate (21) is welded to one end of the plug rod (20), and a sliding rod (18) is welded to the outer side of both ends of the pull plate (21), respectively, a sliding groove (13) for sliding the sliding rod (18) is opened inside the first valve pipe (2) and the second valve pipe (8), a spring is sleeved on the outer side of the sliding rod (18), and the spring is located inside the sliding groove (13), a plurality of limit teeth (14) are fixed at equal distances on one end of the plug rod (20), and one end of the plug rod (20) extends into the slot (15).
2. A forged metal hard-seal floating ball valve according to claim 1, characterized in that: A plurality of fixing bolts (10) are welded to one side of the second flange (12), and the fixing bolts (10) are used in conjunction with the first flange (9), with nuts (11) being connected to the outer sides of the fixing bolts (10) via threaded engagement.
3. The forged metal hard-seal floating ball valve according to claim 1, characterized in that: A movable groove (6) is provided on the top of the spherical body (17), and a valve stem (5) for controlling the spherical body (17) is slidably mounted inside the movable groove (6).
4. A forged metal hard-seal floating ball valve according to claim 3, characterized in that: One end of the valve stem (5) extends into the interior of the sealing groove (3), and one end of the valve stem (5) extends out of the interior of the sealing groove (3) and is fixed to the control rod (4).
5. The forged metal hard-seal floating ball valve according to claim 1, characterized in that: The top of the insertion rod (20) is in an arc shape, and the side view of the rubber insert (16) and the slot (15) is also in an arc shape.
6. The forged metal hard-seal floating ball valve according to claim 1, characterized in that: The pull plate (21) is in an arc shape, and the top of the pull plate (21) fits against the inner walls of the first valve pipeline (2) and the second valve pipeline (8).