A metal octagonal gasket with enhanced sealing

Abstract

The application discloses a metal octagonal gasket capable of strengthening sealing and relates to the technical field of sealing gaskets. The gasket comprises a gasket body, a sealing mechanism connected to the gasket body, rubber assemblies connected to the two sides of a fixing disc, a flow-through mechanism arranged on the fixing disc, a prompt mechanism connected to the fixing disc, a potassium permanganate ball arranged in a transparent box, and a pressure pushing assembly connected to the transparent box and used for releasing the potassium permanganate ball. The metal octagonal gasket capable of strengthening sealing is characterized in that a connecting section made of rubber is connected between a first rubber ring, a second rubber ring and a third rubber ring, thereby forming multiple cavities, so that the rubber rings are prevented from being disconnected and leaking. When the gasket body is broken or leakage occurs, the potassium permanganate ball falls into the aqueous solution under pressure, so that the aqueous solution is discolored, and thus the staff can determine that the gasket body is damaged by finding that the aqueous solution in the transparent box is discolored.

Description

Technical Field

[0001] This invention relates to a metal octagonal gasket, and more particularly to a metal octagonal gasket that can enhance sealing. Background Technology

[0002] Gaskets are materials made of paper, rubber, or copper sheets, placed between two planes to enhance the seal. They are sealing elements placed between static sealing surfaces to prevent fluid leakage. Metal octagonal gaskets are made by forging, heat treatment, and machining. They are metal sealing gaskets used in oil and gas pipe flanges, pressure vessels, high-speed mating surfaces, high-temperature and high-pressure valve covers, etc. They can maintain good sealing performance, especially in situations where pressure and temperature fluctuate.

[0003] Existing octagonal metal gaskets are mostly installed directly between two flanges. When the gasket body breaks or is damaged, the liquid and gas inside the pipeline will leak. There is a lack of a reinforced sealing mechanism, and the liquid can easily flow to the ground. In particular, the gas leak is not easy to detect in time, and it is even more dangerous if it is a harmful gas. Summary of the Invention

[0004] The purpose of this invention is to provide a metal octagonal gasket that can enhance sealing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a metal octagonal gasket with enhanced sealing, comprising a gasket body and a sealing mechanism connected to the gasket body. The sealing mechanism includes an embedding groove and a fixing plate. The outer wall of the gasket body is provided with an embedding groove. The gasket body is detachably connected to the fixing plate through the embedding groove. The thickness of the fixing plate is less than that of the gasket body. Rubber components are connected to both sides of the fixing plate. The fixing plate is provided with an internal and external through-flow mechanism. A prompting mechanism is connected to the fixing plate. The prompting mechanism includes a connecting tube and a transparent box. A connecting tube communicating with the interior of the fixing plate is detachably connected to the side wall of the fixing plate. The bottom end of the connecting tube is detachably connected to the transparent box, which contains... An aqueous solution is provided. The transparent box contains potassium permanganate balls. A pressure-driven assembly for releasing the potassium permanganate balls is connected to the transparent box. The pressure-driven assembly includes a sliding cavity. The sliding cavity is located inside the top of the transparent box. A connecting pipe communicates with the top of the sliding cavity. The bottom of the sliding cavity communicates with the cavity at the bottom of the transparent box where the aqueous solution is stored. The transparent box is slidably connected to a first piston, a second piston, and a push rod inside the sliding cavity. The first piston and the second piston are fixed to the top and bottom of the push rod, respectively. A spring abuts against the first piston and the transparent box. The potassium permanganate balls are stored at the top of the second piston in the sliding cavity. The second piston has a frustum-shaped structure, and the potassium permanganate balls abut against the inclined surface of the second piston.

[0006] Through the above technical solution, it further plays an auxiliary sealing role for the gasket body. At the same time, by observing the color change of the aqueous solution, it is convenient to timely detect the damage of the gasket body.

[0007] Through the above technical solution, when the gasket body is damaged, the pressure generated by the liquid or gas inside the pipeline can push the first piston, the second piston and the push rod to move, so as to facilitate the release of the potassium permanganate balls, and thus facilitate the staff to timely detect the color change of the aqueous solution.

[0008] Through the above technical solution, it is convenient for the potassium permanganate balls to roll out.

[0009] As a preferred technical solution of the present invention, the rubber component includes a first rubber ring, a second rubber ring and a third rubber ring. The first rubber ring, the second rubber ring and the third rubber ring of the same center are installed on both sides of the fixed disk, and the first rubber ring, the second rubber ring and the third rubber ring are arranged from outside to inside.

[0010] Through the above technical solution, it plays a sealing role, enabling the leaked liquid or gas to enter the interior of the connecting pipe, thus facilitating the driving of the pushing component to work.

[0011] A plurality of connecting sections are fixedly connected between the first rubber ring, the second rubber ring and the third rubber ring, and the connecting sections are made of rubber.

[0012] Through the above technical solution, the airtightness is increased to prevent the first rubber ring, the second rubber ring and the third rubber ring from breaking.

[0013] The plurality of connecting sections divide the gaps between the first rubber ring, the second rubber ring and the third rubber ring into a plurality of equidistant chambers, and the thicknesses of the first rubber ring, the second rubber ring and the third rubber ring decrease in a trapezoidal shape.

[0014] Through the above technical solution, the first rubber ring, the second rubber ring and the third rubber ring are sequentially fitted with the flange, so as to facilitate the air in the chamber to be discharged, and prevent too much gas from staying between the first rubber ring, the second rubber ring and the third rubber ring, resulting in deformation.

[0015] The flow mechanism includes a flow groove. The flow groove is provided inside the fixed disk, and a plurality of annularly arranged through holes are provided at one end of the fixed disk close to the gasket body.

[0016] Through the above technical solution, it is convenient for the liquid or gas leaking from the side wall of the gasket body to enter the interior of the fixed disk.

[0017] The flow groove has an opening on the inner wall of the fixed disk, and the cross-section of the fixed disk is in a "匚" shape structure.

[0018] The above technical solution facilitates the entry of liquid or gas into the interior of the fixed plate when the gasket body breaks.

[0019] The fixed disk is located inside the flow channel and is fixedly connected to multiple support blocks, which are arranged in a ring.

[0020] The above technical solution increases the compressive strength of the fixed plate and prevents it from deforming and being damaged.

[0021] The top and bottom of the inner wall of the fixed plate are each equipped with a fourth rubber ring. The fourth rubber ring extends into the embedding groove and abuts against the gasket body. The fixed plate is detachably connected to the embedding groove through the fourth rubber ring.

[0022] The above technical solution facilitates the disassembly and replacement of the fixing plate or gasket body.

[0023] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention comprises a gasket body, a connecting section, a first rubber ring, a second rubber ring, and a third rubber ring. A fixing plate is fitted into the embedding groove of the gasket body via a fourth rubber ring. The gasket body is placed into the trapezoidal groove of one of the flanges, and the other flange is closed and locked in place with bolts. The inner walls of the trapezoidal grooves of the two flanges will tightly abut against the outer wall of the gasket body, thereby achieving a sealing effect. The air between the first, second, and third rubber rings is gradually forced into the middle position of the fixing plate, reducing deformation caused by air pressure and ensuring airtightness. A connecting section made of rubber material connects the first, second, and third rubber rings, forming multiple chambers, thereby preventing leakage caused by the breakage of the first, second, and third rubber rings. At the same time, it can play a certain role in intercepting liquids or gases when the gasket body breaks.

[0024] 2. This invention comprises a transparent box, a fixed plate, an aqueous solution, a potassium permanganate ball, a first piston, a push rod, and a second piston. After the gasket body is installed, the connecting pipe is installed on the fixed plate. When the gasket body breaks or leaks, the liquid or gas inside the pipe will directly or through the through hole into the flow groove on the fixed plate. Under pressure, the first piston, push rod, and second piston will move downwards, the spring will be compressed, and the second piston will extend into the cavity at the bottom of the transparent box, causing the potassium permanganate ball to fall into the aqueous solution, thus changing the color of the aqueous solution. This allows workers to easily determine if the gasket body is damaged by observing the color change of the aqueous solution inside the transparent box, facilitating timely replacement.

[0025] 3. In the present invention, by providing a flow groove and a support block, the flow groove has an opening on the inner wall of the fixed disk, and the cross-section of the fixed disk is in a "C" shape structure, so that the leaked liquid or gas can quickly enter the inside of the flow groove, and then enter the connecting pipe. The support block plays a supporting role to prevent the fixed disk from being bent and damaged due to excessive pressure applied between the flanges to the fixed disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the main structure of the gasket body of the present invention; Figure 2 Schematic diagram of the partial structure of the sealing mechanism of the present invention; Figure 3 Schematic diagram of the partial structure of the flow mechanism of the present invention; Figure 4 Schematic diagram of the partial structure of the first rubber ring of the present invention; Figure 5 Schematic diagram of the partial structure of the transparent box of the present invention; Figure 6 Schematic diagram of the partial structure of the prompting mechanism of the present invention.

[0027] In the figure: 1. Gasket body; 2. Sealing mechanism; 21. First rubber ring; 22. Second rubber ring; 23. Third rubber ring; 24. Connection section; 25. Fixed disk; 26. Fourth rubber ring; 27. Embedded groove; 3. Flow mechanism; 31. Through hole; 32. Flow groove; 33. Support block; 4. Prompting mechanism; 41. Connecting pipe; 42. Transparent box; 43. Aqueous solution; 44. Potassium permanganate ball; 45. Push rod; 46. First piston; 47. Spring; 48. Sliding cavity; 49. Second piston. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figure 1-6 , the present invention provides a technical solution for a metal octagonal gasket that can enhance sealing: According to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, a metal octagonal gasket with enhanced sealing includes a gasket body 1 and a sealing mechanism 2 connected to the gasket body 1. The sealing mechanism 2 includes an embedding groove 27 and a fixing plate 25. The outer wall of the gasket body 1 is provided with an embedding groove 27. The gasket body 1 is detachably connected to the fixing plate 25 through the embedding groove 27. The thickness of the fixing plate 25 is less than that of the gasket body 1. Rubber components are connected to both sides of the fixing plate 25. When two flanges are docked, the gasket body 1 bears the main pressure, and the rubber components play an auxiliary sealing role. When liquid or gas leaks, it can enter the interior of the fixing plate 25. The rubber components are not limited to the following one, and the rubber components can be rubber sheets, rubber sleeves, etc.

[0030] The rubber components include a first rubber ring 21, a second rubber ring 22 and a third rubber ring 23. The first rubber ring 21, the second rubber ring 22 and the third rubber ring 23 with the same center are installed on both sides of the fixing plate 25. The first rubber ring 21, the second rubber ring 22 and the third rubber ring 23 are arranged from the outside to the inside, so as to avoid using a single rubber ring for sealing and avoid damage to a single rubber ring.

[0031] A plurality of connecting segments 24 are fixedly connected between the first rubber ring 21, the second rubber ring 22 and the third rubber ring 23. The connecting segments 24 are made of rubber. The gaps between the first rubber ring 21, the second rubber ring 22 and the third rubber ring 23 are divided into a plurality of equidistant chambers by the plurality of connecting segments 24. The thicknesses of the first rubber ring 21, the second rubber ring 22 and the third rubber ring 23 decrease in a trapezoidal shape. When two flanges are fitted, the first rubber ring 21, the second rubber ring 22 and the third rubber ring 23 are pressed in sequence, which is convenient for the discharge of gas. At the same time, the plurality of equidistant chambers effectively avoid the situation of the rubber ring breaking.

[0032] According to Figure 2 and Figure 3 As shown in the figure, a metal octagonal gasket with enhanced sealing. A through-flow mechanism 3 penetrating inside and outside is provided on the fixing plate 25. The through-flow mechanism 3 includes a flow groove 32. The flow groove 32 is provided inside the fixing plate 25. A plurality of annularly arranged through holes 31 are provided at one end of the fixing plate 25 close to the gasket body 1, so as to facilitate the entry of liquid or gas inside the pipeline into the flow groove 32 when leakage occurs on the side of the gasket body 1.

[0033] The flow groove 32 has an opening on the inner wall of the fixing plate 25. The cross-section of the fixing plate 25 is in a "匚" - shaped structure, so as to facilitate the entry of liquid or gas inside the pipeline into the flow groove 32 when the gasket body 1 breaks.

[0034] A plurality of support blocks 33 are fixedly connected inside the fixing plate 25 at the position of the flow groove 32. The plurality of support blocks 33 are arranged annularly and play a role in supporting and resisting pressure.

[0035] The top and bottom of the inner wall of the fixed plate 25 are both equipped with a fourth rubber ring 26. The fourth rubber ring 26 extends into the embedded groove 27 and abuts against the gasket body 1. The fixed plate 25 is detachably connected to the embedded groove 27 through the fourth rubber ring 26.

[0036] according to Figure 1 , Figure 5 and Figure 6 As shown, a metal octagonal gasket with enhanced sealing is provided. A prompting mechanism 4 is connected to a fixed plate 25. The prompting mechanism 4 includes a connecting tube 41 and a transparent box 42. The side wall of the fixed plate 25 is detachably connected to the connecting tube 41, which communicates with the interior of the fixed plate 25. The bottom end of the connecting tube 41 is detachably connected to the transparent box 42, which contains an aqueous solution 43 and potassium permanganate balls 44. A pressure pushing component for releasing the potassium permanganate balls 44 is connected to the transparent box 42. The pushing component is not limited to the following one; it can also be a pneumatic push rod, etc., to facilitate the release of the potassium permanganate balls 44.

[0037] The pressure-driven assembly includes a sliding cavity 48. The sliding cavity 48 is located inside the top of the transparent box 42. The connecting pipe 41 communicates with the top of the sliding cavity 48. The bottom of the sliding cavity 48 communicates with the cavity at the bottom of the transparent box 42 where the aqueous solution 43 is stored. The transparent box 42 is slidably connected inside the sliding cavity 48 with a first piston 46, a second piston 49, and a push rod 45. The first piston 46 and the second piston 49 are respectively fixed to the top and bottom of the push rod 45. A spring 47 abuts against the first piston 46 and the transparent box 42. The spring 47 provides a certain anti-compression effect to prevent the first piston 46 from moving due to thermal collision or air compression of the flange rubber ring. The potassium permanganate ball 44 is stored at the top of the second piston 49 in the sliding cavity 48.

[0038] The second piston 49 has a frustum-shaped structure, and the potassium permanganate ball 44 abuts against the inclined surface of the second piston 49, which facilitates the rolling of the potassium permanganate ball 44.

[0039] During specific use, the fixed disk 25 is sleeved into the embedding groove 27 of the gasket body 1 through the fourth rubber ring 26. The gasket body 1 is placed into the trapezoidal groove of one of the flanges, the other flange is closed, and tightened and fixed with bolts. The inner walls of the trapezoidal grooves of the two flanges will be in close contact with the outer wall of the gasket body 1, thus achieving the sealing effect. At the same time, the two flanges will approach the fixed disk 25, and the first rubber ring 21, the second rubber ring 22 and the third rubber ring 23 will successively contact the flange wall. Thus, the air between the first rubber ring 21, the second rubber ring 22 and the third rubber ring 23 is gradually pressed into the middle position of the fixed disk 25, reducing the deformation caused by air pressure, thereby ensuring the airtightness. A connecting section 24 made of rubber is connected between the first rubber ring 21, the second rubber ring 22 and the third rubber ring 23, thus forming multiple chambers, thereby avoiding the disconnection of the first rubber ring 21, the second rubber ring 22 and the third rubber ring 23 and preventing leakage. At the same time, when the gasket body 1 breaks, it can play a certain role in intercepting liquid or gas; after the gasket body 1 is installed, the connecting pipe 41 is installed on the fixed disk 25, and a transparent box 42 is installed at the bottom end of the connecting pipe 41. When the gasket body 1 breaks or leaks, the liquid or gas inside the pipeline will directly or enter the flow groove 32 on the fixed disk 25 through the through hole 31, enter the sliding chamber 48 inside the transparent box 42 through the connecting pipe 41. Under pressure, the first piston 46, the push rod 45 and the second piston 49 are pushed downward, the spring 47 will be compressed, and the second piston 49 will extend into the cavity at the bottom of the transparent box 42, so that the potassium permanganate balls 44 will fall into the aqueous solution 43, thus changing the color of the aqueous solution 43, which is convenient for the staff to determine the damage of the gasket body 1 by finding the color change of the aqueous solution 43 inside the transparent box 42, thus facilitating timely replacement; the flow groove 32 has an opening on the inner wall of the fixed disk 25, and the section of the fixed disk 25 is in a "匚" - shaped structure, which is convenient for the leaked liquid or gas to quickly enter the flow groove 32, and thus enter the connecting pipe 41. The support block 33 plays a supporting role, preventing the pressure given by the flanges to the fixed disk 25 from being too large and causing the fixed disk 25 to be bent and damaged.

[0040] As mentioned above, the above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A metal octagonal gasket with enhanced sealing, comprising a gasket body (1) and a sealing mechanism (2) connected to the gasket body (1), characterized in that: The sealing mechanism (2) includes an embedding groove (27) and a fixing plate (25). The outer wall of the gasket body (1) is provided with an embedding groove (27). The gasket body (1) is detachably connected to the fixing plate (25) through the embedding groove (27). The thickness of the fixing plate (25) is less than that of the gasket body (1). Rubber components are connected to both sides of the fixing plate (25). The fixing plate (25) is provided with an internal and external through-flow mechanism (3). A prompting mechanism (4) is connected to the fixing plate (25). The prompting mechanism (4) includes a connecting tube (41) and a transparent box (42). The side wall of the fixing plate (25) is detachably connected to a connecting tube (41) that communicates with the inside of the fixing plate (25). The bottom end of the connecting tube (41) is detachably connected to a transparent box (42). The transparent box (42) contains an aqueous solution (43) and potassium permanganate balls (44). The transparent box (42) is connected to a... The pressure-driven assembly for releasing potassium permanganate balls (44) includes a sliding cavity (48). The sliding cavity (48) is provided inside the top of the transparent box (42). The connecting pipe (41) is connected to the top of the sliding cavity (48). The bottom of the sliding cavity (48) is connected to the cavity at the bottom of the transparent box (42) where the aqueous solution (43) is stored. The transparent box (42) is slidably connected inside the sliding cavity (48) with a first piston (46), a second piston (49) and a push rod (45). The first piston (46) and the second piston (49) are respectively fixed to the top and bottom of the push rod (45). A spring (47) abuts between the first piston (46) and the transparent box (42). The potassium permanganate balls (44) are stored at the top of the second piston (49) in the sliding cavity (48). The second piston (49) has a frustum-shaped structure. The potassium permanganate balls (44) abut against the inclined surface of the second piston (49).

2. The metal octagonal gasket with enhanced sealing according to claim 1, characterized in that: The rubber assembly includes a first rubber ring (21), a second rubber ring (22) and a third rubber ring (23). The first rubber ring (21), the second rubber ring (22) and the third rubber ring (23) are installed on both sides of the fixing plate (25) with the same center. The first rubber ring (21), the second rubber ring (22) and the third rubber ring (23) are arranged from the outside to the inside.

3. The metal octagonal gasket with enhanced sealing according to claim 2, characterized in that: Multiple connecting segments (24) are fixedly connected between the first rubber ring (21), the second rubber ring (22) and the third rubber ring (23), and the connecting segments (24) are made of rubber.

4. The metal octagonal gasket with enhanced sealing according to claim 3, characterized in that: The multiple connecting segments (24) divide the gap between the first rubber ring (21), the second rubber ring (22) and the third rubber ring (23) into multiple equidistant chambers, and the thickness of the first rubber ring (21), the second rubber ring (22) and the third rubber ring (23) decreases in a trapezoidal shape.

5. The octagonal metal gasket with enhanced sealing according to claim 1, characterized in that: The circulation mechanism (3) includes a flow groove (32), the fixed plate (25) has a flow groove (32) inside, and the fixed plate (25) has a plurality of annularly arranged through holes (31) at one end near the gasket body (1).

6. The metal octagonal gasket with enhanced sealing according to claim 5, characterized in that: The flow channel (32) has an opening provided on the inner wall of the fixed disk (25), and the cross-section of the fixed disk (25) is in a "C"-shaped structure.

7. The metal octagonal gasket with enhanced sealing according to claim 5, characterized in that: A plurality of support blocks (33) are fixedly connected inside the flow channel (32) where the fixed disk (25) is located, and the plurality of support blocks (33) are arranged in a ring.

8. The metal octagonal gasket with enhanced sealing according to claim 6, characterized in that: Fourth rubber rings (26) are installed at both the top and bottom of the inner wall of the fixed disk (25). The fourth rubber rings (26) extend into the embedding grooves (27) and抵触 with the gasket body (1), and the fixed disk (25) is detachably connected to the embedding grooves (27) through the fourth rubber rings (26).

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