Corrosion-resistant hard alloy ball valve sealing ring assembly

Abstract

The utility model discloses a corrosion-resistant hard alloy ball valve sealing ring assembly, and belongs to the field of hard alloy ball valves. A corrosion-resistant hard alloy ball valve sealing ring assembly comprises a sealing ring body, high-stability mechanisms are arranged on the surface of a threaded mounting ring and the inner wall of a valve body, wear-resistant and corrosion-resistant mechanisms are arranged on the inner wall of a sealing piece and the surface of a valve element, and efficient sealing mechanisms are arranged on the surfaces of the sealing ring body and the sealing piece. According to the sealing ring assembly, when the sealing ring assembly is used, the installation stability of the sealing ring body and the threaded installation ring can be greatly improved, the sealing ring assembly is firmer during installation, and the sealing effect between the sealing ring body and a valve body is better when the sealing ring assembly is used; according to the sealing ring assembly, the sealing performance cannot be affected after the sealing ring assembly is used for a long time, the abrasion resistance is higher when the sealing ring assembly is used, meanwhile, the sealing ring assembly is not prone to being corroded in the long-time using process, and the service life of the sealing ring assembly is longer.

Description

Technical Field

[0001] This utility model relates to the field of hard alloy ball valve technology, and in particular to a corrosion-resistant hard alloy ball valve sealing ring assembly. Background Technology

[0002] Ball valves are mainly used in pipelines for shut-off, distribution, and changing the flow direction of media. Ball valves are a common type of valve. Carbide ball valves require sealing ring assemblies during use. However, existing sealing ring assemblies are not durable enough after long-term use. To meet market needs, a corrosion-resistant carbide ball valve sealing ring assembly is required.

[0003] A search revealed Chinese patent authorization number 202220567363.3, which discloses a high-stability ball valve metal sealing ring. The ring includes a sealing ring mounted on a valve body, a ball valve within the valve body, a valve stem on the ball valve, and the ball valve is adapted to rotate along the valve stem axis under the control of the valve stem. Connecting valve covers are located on both sides of the valve body, and liquid channels are opened within the connecting valve covers. The high-stability ball valve metal sealing ring in the aforementioned patent has the following shortcomings: the existing sealing ring assembly does not provide sufficient sealing performance during use, which reduces the sealing effect between the sealing ring body and the valve body, easily affecting sealing performance after prolonged use; furthermore, the existing sealing ring assembly has poor wear and corrosion resistance, resulting in insufficient wear resistance and susceptibility to corrosion during long-term use, thus shortening the service life of the sealing ring assembly. Utility Model Content

[0004] The purpose of this invention is to solve the problems of insufficient stability, inadequate sealing performance, and poor wear and corrosion resistance of existing sealing ring assemblies, and to propose a corrosion-resistant hard alloy ball valve sealing ring assembly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A corrosion-resistant hard alloy ball valve sealing ring assembly includes a sealing ring body, a threaded mounting ring mounted on the surface of the sealing ring body, and equally spaced sealing elements mounted on the surface of the sealing ring body. A valve body is disposed on one side of the sealing ring body, and the sealing ring body is disposed inside the valve body. A valve core is disposed inside the valve body. A high-stability mechanism is provided on the surface of the threaded mounting ring and the inner wall of the valve body. The high-stability mechanism includes an anti-disengagement groove, an elastic clip, and a high-stability assembly. A wear-resistant and corrosion-resistant mechanism is provided on the inner wall of the sealing element and the surface of the valve core. A high-efficiency sealing mechanism is provided on the surface of the sealing ring body and the sealing element.

[0007] As a preferred technical solution of this application, both the sealing ring body and the threaded mounting ring have holes on their surfaces at the center position. The surface of the threaded mounting ring is threadedly engaged with the inner wall of the valve body. The valve core is located between adjacent sealing ring bodies. A valve port is installed on the surface of the valve body. A valve shaft is provided inside the valve port. The bottom end of the valve shaft is fixed to the surface of the valve core, and the top end of the valve shaft extends above the valve port.

[0008] As a preferred technical solution of this application, the high stability assembly is disposed on the surface of the threaded mounting ring and the inner wall of the valve body. The high stability assembly is composed of a mounting block and a fixing groove. The surface of the threaded mounting ring is provided with a fixing groove, and the mounting block is installed inside the fixing groove.

[0009] As a preferred technical solution of this application, the surface of the mounting block is equipped with an elastic clip to enhance the stability of the sealing ring body and the threaded mounting ring during installation. The inner wall of the valve body is provided with an anti-disengagement groove, and the anti-disengagement groove and the surface of the elastic clip engage with each other.

[0010] As a preferred technical solution of this application, the wear-resistant and corrosion-resistant mechanism is composed of a metal graphite layer, a stainless steel layer, a rubber layer and a polyimide layer. The inner wall of the seal is adhered with a rubber layer for corrosion resistance of the seal. The surface of the rubber layer away from the seal is adhered with a stainless steel layer. The surface of the stainless steel layer away from the rubber layer is adhered with a metal graphite layer for wear resistance of the sealing ring body and the seal.

[0011] As a preferred technical solution of this application, a polyimide layer is adhered to the surface of the metal graphite layer away from the stainless steel layer, and the inner wall of the polyimide layer is in contact with the surface of the valve core.

[0012] As a preferred technical solution of this application, the high-efficiency sealing mechanism is composed of a sealing groove, a sealing gasket, a sealing block, a sealing spring, and a sealing frame. The sealing ring body and the sealing element are both provided with equally spaced sealing grooves. The sealing groove is provided with a sealing gasket to improve the sealing effect between the sealing ring body and the valve body. The surface of the sealing gasket is in contact with the inner wall of the valve body. The sealing gasket and the inner wall of the sealing groove slide against each other. The inner wall of the sealing groove is provided with equally spaced sealing frames.

[0013] As a preferred technical solution of this application, a sealing block is provided inside the sealing frame, one end of the sealing block is fixed to the surface of the sealing gasket, the sealing block and the inner wall of the sealing frame slide against each other, and a sealing spring is installed inside the sealing frame, one end of the sealing spring is fixed to the surface of the sealing block.

[0014] Compared with the prior art, this utility model provides a corrosion-resistant hard alloy ball valve sealing ring assembly, which has the following beneficial effects:

[0015] 1. This corrosion-resistant hard alloy ball valve sealing ring assembly, through its highly stable mechanism, greatly improves the stability of the sealing ring body and threaded mounting ring during installation, making the sealing ring assembly more secure during installation, thus solving the problem that the stability of the existing technology needs to be further improved.

[0016] 2. This corrosion-resistant hard alloy ball valve sealing ring assembly, through its high-efficiency sealing mechanism, achieves a better sealing effect between the sealing ring body and the valve body, and its sealing performance will not be affected after long-term use, thus solving the problem of insufficient sealing performance in the prior art.

[0017] 3. This corrosion-resistant hard alloy ball valve sealing ring assembly, through the design of a wear-resistant and corrosion-resistant mechanism, achieves higher wear resistance and is less susceptible to corrosion during long-term use, thus extending its service life and solving the problem of poor wear and corrosion resistance in existing technologies. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention in use.

[0020] Figure 3 This is an enlarged structural schematic diagram of the main cross-section of this utility model;

[0021] Figure 4 For the present utility model Figure 2 A magnified schematic diagram of a medium-to-high stability mechanism;

[0022] Figure 5 For the present utility model Figure 2 Enlarged structural diagram of the wear-resistant and corrosion-resistant mechanism;

[0023] Figure 6 For the present utility model Figure 2 Enlarged structural diagram of a medium- and high-efficiency sealing mechanism.

[0024] In the picture:

[0025] 1. Sealing ring body; 101. Threaded mounting ring; 102. Seal; 103. Valve body; 104. Valve shaft; 105. Valve port; 106. Valve core; 107. Hole body; 2. High stability mechanism; 21. Anti-disengagement groove; 22. Elastic clip; 23. High stability assembly; 231. Mounting block; 232. Fixing groove; 3. Wear-resistant and corrosion-resistant mechanism; 31. Metal graphite layer; 32. Stainless steel layer; 33. Rubber layer; 34. Polyimide layer; 4. High-efficiency sealing mechanism; 41. Sealing groove; 42. Sealing gasket; 43. Sealing block; 44. Sealing spring; 45. Sealing frame. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0027] Reference Figure 1-3 A corrosion-resistant hard alloy ball valve sealing ring assembly includes a sealing ring body 1, a threaded mounting ring 101 mounted on the surface of the sealing ring body 1, holes 107 formed at the center of both the sealing ring body 1 and the threaded mounting ring 101, and equally spaced sealing elements 102 mounted on the surface of the sealing ring body 1. A valve body 103 is disposed on one side of the sealing ring body 1, and the sealing ring body 1 is disposed inside the valve body 103. The surface of the threaded mounting ring 101 is threadedly engaged with the inner wall of the valve body 103. A valve core 106 is disposed inside the valve body 103, and the valve core 106 is located between adjacent sealing ring bodies 1. A valve port 105 is mounted on the surface of the valve body 103, and a valve shaft 104 is disposed inside the valve port 105. The bottom end of the valve shaft 104 is fixed to the surface of the valve core 106, and the top end of the valve shaft 104 extends above the valve port 105.

[0028] Reference Figure 2 and Figure 4Furthermore, the system includes a high-stability mechanism 2 on the surface of the threaded mounting ring 101 and the inner wall of the valve body 103. The high-stability mechanism 2 contains an anti-disengagement groove 21, an elastic retainer 22, and a high-stability assembly 23. The high-stability assembly 23 is located on the surface of the threaded mounting ring 101 and the inner wall of the valve body 103. The high-stability assembly 23 consists of a mounting block 231 and a fixing groove 232. The surface of the threaded mounting ring 101 is provided with fixing grooves 232, and mounting blocks 231 are installed inside the fixing grooves 232. Elastic retainers 22 are installed on the surface of the mounting blocks 231 to enhance the stability of the sealing ring body 1 and the threaded mounting ring 101 during installation. The inner wall of the valve body 103 is provided with anti-disengagement grooves 21, and the surfaces of the anti-disengagement grooves 21 and the elastic retainers 22 engage with each other. By providing this high-stability mechanism, the stability of the sealing ring body 1 and the threaded mounting ring 101 during installation is greatly improved, making the sealing ring assembly more secure during installation.

[0029] Reference Figure 2 and Figure 5 Furthermore, the inner wall of the seal 102 and the surface of the valve core 106 are provided with a wear-resistant and corrosion-resistant mechanism 3. This mechanism 3 consists of a metal graphite layer 31, a stainless steel layer 32, a rubber layer 33, and a polyimide layer 34. The inner wall of the seal 102 is adhered with a rubber layer 33 for corrosion resistance. A stainless steel layer 32 is adhered to the surface of the rubber layer 33 away from the seal 102. A metal graphite layer 31 for wear resistance to the sealing ring body 1 and the seal 102 is adhered to the surface of the stainless steel layer 32 away from the rubber layer 33. A polyimide layer 34 is adhered to the surface of the metal graphite layer 31 away from the stainless steel layer 32. The inner wall of the polyimide layer 34 is in contact with the surface of the valve core 106. By providing this wear-resistant and corrosion-resistant mechanism, the sealing ring assembly exhibits higher wear resistance during use and is less susceptible to corrosion during prolonged use, thus extending its service life.

[0030] Reference Figure 2 and Figure 6Furthermore, the sealing ring body 1 and the sealing element 102 are provided with a high-efficiency sealing mechanism 4. The high-efficiency sealing mechanism 4 is composed of a sealing groove 41, a sealing gasket 42, a sealing block 43, a sealing spring 44, and a sealing frame 45. The sealing ring body 1 and the sealing element 102 are both provided with equally spaced sealing grooves 41. The sealing groove 41 is provided with a sealing gasket 42 to improve the sealing effect between the sealing ring body 1 and the valve body 103. The surface of the sealing gasket 42 is in contact with the inner wall of the valve body 103. The sealing gasket 42 and the inner wall of the sealing groove 41 slide against each other. The inner wall of the sealing groove 41 is provided with equally spaced sealing frames 45. The sealing frame 45 is provided with a sealing block 43. One end of the sealing block 43 is fixed to the surface of the sealing gasket 42. The sealing block 43 and the inner wall of the sealing frame 45 slide against each other. The sealing frame 45 is provided with a sealing spring 44. One end of the sealing spring 44 is fixed to the surface of the sealing block 43. By setting up a high-efficiency sealing mechanism, the sealing effect between the sealing ring body 1 and the valve body 103 is better when the sealing ring assembly is in use, and the sealing performance will not be affected after long-term use.

[0031] Specifically, when this corrosion-resistant hard alloy ball valve sealing ring assembly is in operation: First, the sealing ring body 1 is placed inside the valve body 103. The user rotates the sealing ring body 1 and the threaded mounting ring 101. With the threaded engagement between the threaded mounting ring 101 and the valve body 103, the sealing ring body 1 and the threaded mounting ring 101 are installed on the inner wall of the valve body 103. At this time, the mounting block 231 inside the fixing groove 232 drives the elastic clip 22 to move, so that the elastic clip 22 automatically locks into the corresponding anti-disengagement groove 21. Under the locking action of the anti-disengagement groove 21 and the elastic clip 22, the sealing ring body 1 and the threaded mounting ring 101 are assembled inside the valve body 103, preventing the sealing ring body 1 and the threaded mounting ring 101 from loosening during use, so as to achieve the high stability function of the sealing ring assembly. This greatly improves the stability of the sealing ring body 1 and the threaded mounting ring 101 during installation, making the sealing ring assembly more secure during installation.

[0032] Subsequently, when the sealing ring body 1 and the threaded mounting ring 101 are installed on the inner wall of the valve body 103, the sealing block 43 moves under the elastic force of the sealing spring 44 inside the sealing frame 45, causing the sealing block 43 to slide the sealing gasket 42 inside the sealing groove 41. At this time, the sealing block 43 moves the sealing gasket 42 to contact the inner wall of the valve body 103. Under the action of the sealing gasket 42, the sealing effect between the sealing ring body 1 and the valve body 103, and between the sealing element 102 and the valve body 103 is further improved, so as to achieve the function of efficient sealing of the sealing ring assembly. This makes the sealing effect between the sealing ring body 1 and the valve body 103 better when the sealing ring assembly is used, and the sealing performance will not be affected after long-term use.

[0033] Subsequently, the user rotates the valve shaft 104, causing the valve shaft 104 to drive the valve core 106 to rotate inside the valve body 103, thus opening and closing the valve body 103. When the valve core 106 is closed, the polyimide layer 34 abuts against and presses against the outer end face of the valve core 106. The arc-shaped inner wall of the polyimide layer 34 matches the outer end face of the valve core 106, achieving zero leakage. When the valve core 106 rotates inside the valve body 103, the polyimide layer 34 can also scrape off the material on the end face of the valve core 106, further improving... The sealing effect is high. The metal graphite layer 31 and the polyimide layer 34 work together to achieve temperature and wear resistance. The stainless steel layer 32 and the rubber layer 33 work together to improve the corrosion resistance of the sealing ring body 1 and the sealing element 102 surface, so as to realize the wear and corrosion resistance of the sealing ring assembly. This makes the sealing ring assembly more wear-resistant during use. At the same time, it is not easily corroded during long-term use, which makes the sealing ring assembly have a longer service life and finally completes the use of the sealing ring assembly.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A corrosion-resistant hard alloy ball valve sealing ring assembly, comprising a sealing ring body (1), characterized in that: The sealing ring body (1) is fitted with a threaded mounting ring (101) on its surface. The sealing ring body (1) is fitted with equally spaced sealing elements (102) on its surface. A valve body (103) is provided on one side of the sealing ring body (1). The sealing ring body (1) is located inside the valve body (103). A valve core (106) is provided inside the valve body (103). A high-stability mechanism (2) is provided on the surface of the threaded mounting ring (101) and the inner wall of the valve body (103). The high-stability mechanism (2) includes an anti-disengagement groove (21), an elastic clip (22), and a high-stability assembly (23). A wear-resistant and corrosion-resistant mechanism (3) is provided on the inner wall of the sealing element (102) and the surface of the valve core (106). A high-efficiency sealing mechanism (4) is provided on the surface of the sealing ring body (1) and the sealing element (102).

2. The corrosion-resistant hard alloy ball valve sealing ring assembly according to claim 1, characterized in that: Both the sealing ring body (1) and the threaded mounting ring (101) have holes (107) at their center positions. The surface of the threaded mounting ring (101) is threadedly engaged with the inner wall of the valve body (103). The valve core (106) is located between adjacent sealing ring bodies (1). The surface of the valve body (103) is equipped with a valve port (105). A valve shaft (104) is provided inside the valve port (105). The bottom end of the valve shaft (104) is fixed to the surface of the valve core (106). The top end of the valve shaft (104) extends above the valve port (105).

3. The corrosion-resistant hard alloy ball valve sealing ring assembly according to claim 1, characterized in that: The high stability assembly (23) is disposed on the surface of the threaded mounting ring (101) and the inner wall of the valve body (103). The high stability assembly (23) is composed of a mounting block (231) and a fixing groove (232). The surface of the threaded mounting ring (101) is provided with a fixing groove (232), and the mounting block (231) is installed inside the fixing groove (232).

4. The corrosion-resistant hard alloy ball valve sealing ring assembly according to claim 3, characterized in that: The surface of the mounting block (231) is fitted with an elastic clip (22) to enhance the stability of the sealing ring body (1) and the threaded mounting ring (101) during installation. The inner wall of the valve body (103) is provided with anti-disengagement grooves (21), and the anti-disengagement grooves (21) and the surface of the elastic clips (22) engage with each other.

5. The corrosion-resistant hard alloy ball valve sealing ring assembly according to claim 1, characterized in that: The wear-resistant and corrosion-resistant mechanism (3) is composed of a metal graphite layer (31), a stainless steel layer (32), a rubber layer (33) and a polyimide layer (34). The inner wall of the seal (102) is bonded with a rubber layer (33) for corrosion resistance of the seal (102). The surface of the rubber layer (33) away from the seal (102) is bonded with a stainless steel layer (32). The surface of the stainless steel layer (32) away from the rubber layer (33) is bonded with a metal graphite layer (31) for wear resistance of the sealing ring body (1) and the seal (102).

6. The corrosion-resistant hard alloy ball valve sealing ring assembly according to claim 5, characterized in that: A polyimide layer (34) is adhered to the surface of the metal graphite layer (31) away from the stainless steel layer (32), and the inner wall of the polyimide layer (34) is in contact with the surface of the valve core (106).

7. The corrosion-resistant hard alloy ball valve sealing ring assembly according to claim 1, characterized in that: The high-efficiency sealing mechanism (4) is composed of a sealing groove (41), a sealing gasket (42), a sealing block (43), a sealing spring (44), and a sealing frame (45). The sealing ring body (1) and the sealing element (102) are both provided with equally spaced sealing grooves (41). The sealing groove (41) is provided with a sealing gasket (42) to improve the sealing effect between the sealing ring body (1) and the valve body (103). The surface of the sealing gasket (42) is in contact with the inner wall of the valve body (103). The sealing gasket (42) and the inner wall of the sealing groove (41) slide against each other. The inner wall of the sealing groove (41) is provided with equally spaced sealing frames (45).

8. The corrosion-resistant hard alloy ball valve sealing ring assembly according to claim 7, characterized in that: The sealing frame (45) is provided with a sealing block (43) inside. One end of the sealing block (43) is fixed to the surface of the sealing gasket (42). The sealing block (43) and the inner wall of the sealing frame (45) slide against each other. A sealing spring (44) is installed inside the sealing frame (45). One end of the sealing spring (44) is fixed to the surface of the sealing block (43).

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