A double-sealed wear-resistant circular butterfly gate

Abstract

This utility model discloses a double-sealed wear-resistant circular butterfly gate, belonging to the technical field of gate equipment. It includes a valve body, inside which a control frame is rotatably connected, and a butterfly plate is fixedly connected to the surface of the control frame. The butterfly plate is rotatably disposed inside the valve body, while a metal sealing ring is fixedly connected to the outside of the valve body. A fixing frame is provided on the outside of the valve body via a double-sealing assembly, and a connecting column is slidably connected inside the fixing frame and slidably disposed inside the valve body. An elastic sealing ring is nested on the outside of the valve body. This double-sealed wear-resistant circular butterfly gate, through the use of the elastic sealing ring and metal sealing ring, not only allows new sealing rings to be installed quickly and rapidly restores sealing performance, but also shortens the time the valve is in a non-sealed state, effectively preventing media leakage, ensuring stable operation of the pipeline system, and avoiding corrosive damage to the surrounding environment and equipment caused by media leakage.

Description

Technical Field

[0001] This utility model relates to the field of gate equipment technology, specifically a double-sealed wear-resistant circular butterfly gate. Background Technology

[0002] The double-seal wear-resistant circular butterfly gate is a special valve that combines bidirectional sealing, wear-resistant materials, and a circular butterfly plate design. Its core features are high sealing performance, long service life, and reliable opening and closing through a double-seal structure, wear-resistant materials, and eccentric design. It is suitable for media containing particles, corrosive media, or high-temperature and high-pressure conditions. The double-seal structure ensures zero leakage in both forward and reverse flow, meeting stringent environmental protection requirements. It also ensures uniform pressure on the sealing surface, a tight fit, and effectively prevents media leakage. When using butterfly gates, traditional butterfly gates use complex bolt fastening, welding, or integrated molding connections for components such as sealing gaskets, valve stems, and drive devices, making disassembly inconvenient and maintenance extremely difficult, while also increasing maintenance time and costs.

[0003] To overcome the above-mentioned defects, the prior art (Chinese patent application number 202022949932.4, application date 2020-12-11) provides a direct-buried pipeline butterfly gate. The pipeline butterfly gate is equipped with a vertical shaft, one side of which is connected to the inlet pipeline and the other side is connected to the outlet pipeline. The pipeline butterfly gate includes a gate core. The advantages of this device are: it adopts a direct-buried pipeline butterfly gate, which is widely used; the construction is simple, the cost is low, and it is easy to install. It can be directly buried and backfilled after trenching. The gate plate is tightly sealed. The gate core can be pulled out from the track, which is convenient for maintenance and repair. Gate cores of the same model can be interchanged. The water pressure on the gate plates on both sides of the central shaft is equal, the opening and closing is easy, the required force is small, and it can be intelligently remotely controlled.

[0004] If the elastic sealing ring cannot be replaced for an extended period, the valve faces a higher risk of leakage while waiting for the new sealing ring to be installed. Over time, the leakage may gradually develop from minor to serious, further exacerbating the threat to the production environment, equipment, and personnel safety. If the elastic sealing ring cannot be installed quickly during the use of the above-mentioned device, the valve will be in a non-sealed or poorly sealed state for a long time, resulting in leakage of the internal medium. This not only affects the normal operation of the pipeline system but also pollutes the surrounding environment. Utility Model Content

[0005] The purpose of this invention is to provide a double-sealed wear-resistant circular butterfly gate to solve the problem mentioned in the background art, which is that the elastic sealing ring cannot be installed quickly, resulting in the valve being in a non-sealed or poorly sealed state for a long time, causing leakage of the internal medium, which not only affects the normal operation of the pipeline system, but also causes pollution to the surrounding environment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a double-sealed wear-resistant circular butterfly gate, comprising a valve body, a control frame rotatably connected inside the valve body, and a butterfly plate fixedly connected to the surface of the control frame, the butterfly plate being rotatably disposed inside the valve body, while a metal sealing ring is fixedly connected to the outside of the valve body; a fixing frame is provided on the outside of the valve body through a double-sealing assembly, and a connecting column is slidably connected inside the fixing frame, the connecting column being slidably disposed inside the valve body, while an elastic sealing ring is nested on the outside of the valve body; a fixing block is fixedly connected to one end of the inner wall of the valve body near the butterfly plate, and a positioning groove is opened inside the fixing block, and the fixing blocks are symmetrically distributed about the center of the valve body, while a limit rod is provided on the outside of the valve body through a self-locking assembly.

[0007] Preferably, the dual-sealing assembly includes a fixing groove inside the elastic sealing ring, and the connecting post is slidably connected to the surface of the fixing groove, and a baffle is fixedly connected to the surface of the connecting post.

[0008] Preferably, a sliding rod is fixedly connected to the outside of the valve body, and the sliding rod is slidably connected through the baffle, and a fixing spring is fixedly connected to the end of the baffle surface away from the fixing frame.

[0009] Preferably, the other end of the fixing spring is fixedly connected to the valve body, and the connecting columns are symmetrically distributed about the center of the valve body.

[0010] Preferably, a filter assembly is slidably connected inside the valve body, and a positioning post is fixedly connected to one end of the filter assembly surface near the fixing block, and the positioning post corresponds one-to-one with the positioning groove.

[0011] Preferably, the self-locking assembly includes a connecting plate through which the limiting rod passes, and a locking frame is fixedly connected to the surface of the connecting plate, and the locking frame is slidably disposed inside the valve body.

[0012] Preferably, one end of the connecting spring is fixedly connected to the surface of the connecting plate, and the other end of the connecting spring is fixedly connected to the valve body, and the surface of the locking frame is in contact with the surface of the filter assembly.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the double-sealed wear-resistant circular butterfly gate adopts a novel structural design, the specific details of which are as follows: This double-sealed wear-resistant circular butterfly gate, through its elastic sealing ring and metal sealing ring, not only allows new sealing rings to be installed in a short time and quickly restores sealing performance, but also shortens the time the valve is in a non-sealed state, effectively preventing media leakage, ensuring the stable operation of the pipeline system, and avoiding corrosion damage to the surrounding environment and equipment caused by media leakage.

[0014] Furthermore, the metal sealing ring is made of high-strength metal material. Under high pressure, the metal sealing ring can withstand huge pressure without deformation or damage, thereby ensuring a tight fit with the sealing surfaces of the butterfly plate and valve body, effectively preventing media leakage.

[0015] This double-sealed wear-resistant circular butterfly gate, through its limit rod and locking frame, can not only lock the filter assembly, but also ensure that the filter assembly remains stable when faced with particle impact, so that the particles impact the surface of the filter assembly evenly, effectively reducing excessive wear of the butterfly gate and improving the overall wear resistance of the filter assembly.

[0016] Furthermore, it ensures that the filter components will not collide with the valve body lining, maintains the stability of the wear-resistant layer of the valve body lining, guarantees the wear resistance of the valve body, and extends the overall service life of the valve.

[0017] (3) The double-sealed wear-resistant round butterfly gate, through the positioning groove and positioning column, enables the fluid to pass through the filter component in a stable and uniform manner, ensuring the consistency and stability of the filtration effect, avoiding uneven filtration caused by improper installation of the filter component, providing high-quality filtered water for production, and ensuring the stability of product quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the connection structure between the elastic sealing ring and the valve body of this utility model.

[0019] Figure 2 This is a schematic diagram of the connection structure between the control frame and the butterfly plate of this utility model.

[0020] Figure 3 This is a schematic diagram of the connection structure between the fixing groove and the elastic sealing ring of this utility model.

[0021] Figure 4 This is a schematic diagram of the connection structure between the baffle and the connecting column of this utility model.

[0022] Figure 5 This is a schematic diagram of the connection structure between the positioning groove and the fixing block of this utility model.

[0023] Figure 6 This is a schematic diagram of the connection structure between the positioning column and the filter assembly of this utility model.

[0024] Figure 7 This is a schematic diagram of the connection structure between the connecting plate and the connecting spring of this utility model.

[0025] In the diagram: 1. Valve body; 2. Control frame; 3. Butterfly plate; 4. Elastic sealing ring; 5. Fixing groove; 6. Fixing frame; 7. Sliding rod; 8. Baffle; 9. Connecting column; 10. Fixing spring; 11. Metal sealing ring; 12. Fixing block; 13. Positioning groove; 14. Filter assembly; 15. Positioning column; 16. Limiting rod; 17. Connecting plate; 18. Locking frame; 19. Connecting spring. 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. 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.

[0027] Example 1: By using the butterfly plate 3, elastic sealing ring 4, and metal sealing ring 11, it is possible to ensure that the butterfly plate 3 and the sealing surface of the valve body 1 are tightly fitted, effectively preventing media leakage. Figures 1-2 As shown: It includes a valve body 1, a control frame 2 rotatably connected inside the valve body 1, and a butterfly plate 3 fixedly connected to the surface of the control frame 2. The butterfly plate 3 is rotatably disposed inside the valve body 1. At the same time, a metal sealing ring 11 is fixedly connected to the outside of the valve body 1. A fixing frame 6 is provided on the outside of the valve body 1 through a double sealing assembly. A connecting column 9 is slidably connected inside the fixing frame 6 and is slidably disposed inside the valve body 1. At the same time, an elastic sealing ring 4 is nested on the outside of the valve body 1. A fixing block 12 is fixedly connected to the inner wall of the valve body 1 near the butterfly plate 3. The fixing block 12 has a positioning groove 13 inside and is symmetrically distributed about the center of the valve body 1. At the same time, a limit rod 16 is provided on the outside of the valve body 1 through a self-locking assembly.

[0028] The operator releases the self-locking component of the device by pulling the locking bracket 18, and then slowly slides the filter component 14 into the valve body 1 along the positioning groove 13 by hand. After the filter component 14 is installed, the locking bracket 18 is released to fix the filter component 14. This effectively reduces excessive wear on the butterfly gate and improves the overall wear resistance of the filter component 14. At the same time, the locking component allows for the quick installation of the elastic sealing ring 4 (e.g., Figure 1 and Figure 2 As shown in the figure, the time the valve is in a non-sealed state is shortened, ensuring the stable operation of the pipeline system. After the staff has installed the valve body 1 of the device, the valve body 1 is installed in the predetermined position, and by rotating the control frame 2, the control frame 2 drives the butterfly plate 3 to rotate inside the valve body 1, ensuring that the device can operate normally.

[0029] In Example 2, unlike Example 1, the fixed groove 5, connecting post 9, and fixed spring 10 enable the new sealing ring to be installed quickly, rapidly restoring the sealing performance of the valve body 1. Figures 3-4 As shown: The double sealing assembly includes a fixing groove 5 inside the elastic sealing ring 4, and a connecting post 9 is slidably connected to the surface of the fixing groove 5. A baffle 8 is fixedly connected to the surface of the connecting post 9. A sliding rod 7 is fixedly connected to the outside of the valve body 1, and the sliding rod 7 is slidably connected to the baffle 8. A fixing spring 10 is fixedly connected to one end of the surface of the baffle 8 away from the fixing frame 6. The other end of the fixing spring 10 is fixedly connected to the valve body 1. The connecting posts 9 are symmetrically distributed about the center of the valve body 1.

[0030] When the worker installs the elastic sealing ring 4, by pulling the connecting column 9, under the constraint of the sliding rod 7 on the outside of the valve body 1, the connecting column 9 causes the baffle 8 on its surface to slide outwards towards the outside of the valve body 1, and the fixing spring 10 on the surface of the valve body 1 stretches towards the surface of the baffle 8. After the connecting column 9 is fully inserted into the inner wall of the valve body 1, the elastic sealing ring 4 is installed on the outer surface of the valve body 1 (e.g., Figure 3 and Figure 4 As shown, when the elastic sealing ring 4 is in contact with the outer surface of the valve body 1, the connecting column 9 is released. At this time, the fixing spring 10 drives the connecting column 9 to reset, and the connecting column 9 is connected to the valve body 1 through the fixing groove 5 inside the nested elastic sealing ring 4, thereby completing the installation of the elastic sealing ring 4. This not only shortens the time the valve is in a non-sealed state, but also effectively prevents media leakage, ensures the stable operation of the pipeline system, and avoids media leakage from causing corrosion damage to the surrounding environment and equipment.

[0031] In embodiment three, unlike embodiment two, the positioning groove 13, connecting spring 19, and locking bracket 18 ensure that the filter assembly 14 will not collide with the inner lining of the valve body 1, thus maintaining the stability of the wear-resistant layer of the inner lining of the valve body 1. Figures 5-7 As shown: A filter assembly 14 is slidably connected inside the valve body 1, and a positioning post 15 is fixedly connected to one end of the surface of the filter assembly 14 near the fixing block 12. The positioning post 15 corresponds one-to-one with the positioning groove 13. The self-locking assembly includes a connecting plate 17 through which the limiting rod 16 passes. A locking frame 18 is fixedly connected to the surface of the connecting plate 17 and is slidably disposed inside the valve body 1. One end of a connecting spring 19 is fixedly connected to the surface of the connecting plate 17, and the other end of the connecting spring 19 is fixedly connected to the valve body 1. The surface of the locking frame 18 is in contact with the surface of the filter assembly 14.

[0032] When the operator needs to install the filter assembly 14, by pulling the locking bracket 18, under the constraint of the limit rod 16, the locking bracket 18 causes the connecting plate 17 on its surface to slide outwards towards the valve body 1, while simultaneously causing the connecting spring 19 on the outside of the valve body 1 to stretch towards the surface of the connecting plate 17 (e.g., Figure 7 As shown), when the locking frame 18 is in contact with the inner wall of the valve body 1, the self-locking component of the device is released. The operator holds the filter assembly 14 and aligns the positioning post 15 on the rear side of the filter assembly 14 with the positioning groove 13 inside the fixing block 12. Then, the filter assembly 14 is slowly slid into the valve body 1 along the direction of the positioning groove 13. When the positioning post 15 is tightly in contact with the inner wall of the fixing block 12, the locking frame 18 is released, and the connecting spring 19 drives the locking frame 18 to reset. The locking frame 18 is then tightly in contact with the outer side of the filter assembly 14 (as shown). Figure 5 and Figure 6 As shown in the figure, this locks the filter assembly 14, ensuring that the filter assembly 14 remains stable when faced with particle impact, so that the particles impact the surface of the filter assembly 14 evenly, effectively reducing excessive wear of the butterfly gate and improving the overall wear resistance of the filter assembly 14.

[0033] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-sealed wear-resistant circular butterfly gate, comprising a valve body (1), wherein a control frame (2) is rotatably connected inside the valve body (1), and a butterfly plate (3) is fixedly connected to the surface of the control frame (2), and the butterfly plate (3) is rotatably disposed inside the valve body (1), while a metal sealing ring (11) is fixedly connected to the outside of the valve body (1). Its features are: The valve body (1) is provided with a fixing frame (6) through a double sealing assembly on the outside, and a connecting column (9) is slidably connected inside the fixing frame (6), and the connecting column (9) is slidably disposed inside the valve body (1). Meanwhile, an elastic sealing ring (4) is nested and connected to the outside of the valve body (1). A fixing block (12) is fixedly connected to one end of the inner wall of the valve body (1) near the butterfly plate (3), and a positioning groove (13) is provided inside the fixing block (12). The fixing blocks (12) are symmetrically distributed about the center of the valve body (1), and a limit rod (16) is provided on the outside of the valve body (1) through a self-locking assembly.

2. The double-sealed wear-resistant circular butterfly gate according to claim 1, characterized in that: The double sealing assembly includes a fixing groove (5) inside the elastic sealing ring (4), and the connecting post (9) is slidably connected to the surface of the fixing groove (5), and a baffle (8) is fixedly connected to the surface of the connecting post (9).

3. The double-sealed wear-resistant circular butterfly gate according to claim 2, characterized in that: A sliding rod (7) is fixedly connected to the outside of the valve body (1), and the sliding rod (7) is slidably connected through the baffle (8), and a fixed spring (10) is fixedly connected to the end of the surface of the baffle (8) away from the fixed frame (6).

4. The double-sealed wear-resistant circular butterfly gate according to claim 3, characterized in that: The valve body (1) is fixedly connected to the other end of the fixed spring (10), and the connecting column (9) is symmetrically distributed about the center of the valve body (1).

5. A double-sealed wear-resistant circular butterfly gate according to claim 1, characterized in that: The valve body (1) is slidably connected to a filter assembly (14), and a positioning post (15) is fixedly connected to one end of the filter assembly (14) near the fixed block (12), and the positioning post (15) corresponds one-to-one with the positioning groove (13).

6. A double-sealed wear-resistant circular butterfly gate according to claim 5, characterized in that: The self-locking assembly includes a connecting plate (17) through which a limiting rod (16) is connected, and a locking frame (18) is fixedly connected to the surface of the connecting plate (17), and the locking frame (18) is slidably disposed inside the valve body (1).

7. A double-sealed wear-resistant circular butterfly gate according to claim 6, characterized in that: One end of the connecting spring (19) is fixedly connected to the surface of the connecting plate (17), and the other end of the connecting spring (19) is fixedly connected to the valve body (1). The surface of the locking frame (18) is in contact with the surface of the filter assembly (14).

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