A pressure-resistant composite gasket

Abstract

This utility model discloses a pressure-resistant composite gasket, relating to the technical field of composite gasket devices. The pressure-resistant composite gasket includes an outer metal ring and an inner metal ring, connected at their midpoints by a metal ring plate. By incorporating a horizontal locking component and a vertical locking component, this pressure-resistant composite gasket can lock the two sets of graphite layers to the metal ring plate and the two sets of metal rings respectively. The two sets of graphite layers are detachable, eliminating the need to replace the entire composite gasket; only the graphite layers need to be replaced, reducing maintenance and time costs and extending the service life of other parts of the composite gasket. The horizontal locking component effectively resists torque and shear force, preventing relative sliding between the two sets of graphite layers and the metal rings. The vertical locking component better withstands tensile force, preventing separation, thereby improving the overall connection stability, enhancing the firmness of the graphite layer and metal ring plate installation, and ensuring the effectiveness of the graphite layer.

Description

Technical Field

[0001] This utility model relates to the technical field of composite gasket devices, specifically a pressure-resistant composite gasket. Background Technology

[0002] Pressure-resistant composite gaskets are composite sealing elements used to seal joints and can withstand high pressure. They are typically composed of a metal skeleton and a graphite layer, with the graphite layer installed on the top and bottom of the metal skeleton and in contact with the equipment connection parts.

[0003] During use, the graphite layer of the composite gasket exhibits excellent flexibility and self-lubricating properties, filling the tiny gaps between the composite gasket and the connecting components. This effectively prevents fluid (such as gas or liquid) leakage, providing a sealing effect and ensuring the sealing and stability of the equipment. It also prevents media leakage from causing safety accidents or affecting the normal operation of the equipment. However, after prolonged use, the graphite layer may be damaged due to wear, corrosion, or other factors, thus reducing the service life of the composite gasket. To address the shortcomings of existing technologies, we propose a pressure-resistant composite gasket to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a pressure-resistant composite gasket, comprising a metal outer ring and a metal inner ring, wherein the middle of the metal outer ring and the metal inner ring are connected by a metal ring plate, and an upper graphite layer and a lower graphite layer are respectively provided at the top and bottom of the metal ring plate, and the upper graphite layer and the lower graphite layer are respectively fixedly connected to the metal ring plate by locking components. The locking components include a horizontal locking component and a vertical locking component. The horizontal locking components are distributed equidistantly along the two sets of graphite layers in the horizontal direction, and the vertical locking components are distributed equidistantly along the two sets of graphite layers in the vertical direction.

[0005] Preferably, the metal ring plate has annular grooves at both the top and bottom, an upper mounting ring plate is fixedly connected to the bottom of the upper graphite layer, and a lower mounting ring plate is fixedly connected to the top of the lower graphite layer. The upper mounting ring plate and the lower mounting ring plate are respectively inserted into the annular grooves.

[0006] Preferably, the lateral locking assembly includes a first threaded post, a first threaded cylinder, a first bolt head, and a first mounting hole. The first mounting hole is formed inside the outer metal ring and the inner metal ring, and the first bolt head is fixedly installed at the ends of the first threaded post and the first threaded cylinder.

[0007] Preferably, one end of the first threaded cylinder passes through the inner metal ring and is threaded into the upper mounting ring plate, the lower mounting ring plate, and the inner metal ring plate, and one end of the first threaded column passes through the outer metal ring and is threaded into the inner metal ring.

[0008] Preferably, the first bolt head is locked inside the first mounting hole.

[0009] Preferably, the vertical locking assembly includes a second threaded post, a second threaded cylinder, a second bolt head, and a second mounting hole. The second mounting hole is formed inside the upper graphite layer and the lower graphite layer, and the second bolt head is fixedly installed at the ends of the second threaded post and the second threaded cylinder.

[0010] Preferably, one end of the second threaded cylinder passes through the upper graphite layer and is threaded into the inside of the metal ring plate, and one end of the second threaded column passes through the lower graphite layer and is threaded into the inside of the second threaded cylinder.

[0011] Preferably, the second bolt head is locked inside the second mounting hole, and the second threaded cylinder is located between the upper mounting ring plate and the lower mounting ring plate.

[0012] This utility model discloses a pressure-resistant composite gasket, which has the following beneficial effects: This pressure-resistant composite gasket, by setting a horizontal locking component and a vertical locking component, can respectively lock the two sets of graphite layers to the metal ring plate and the two sets of metal rings. The two sets of graphite layers are made detachable, eliminating the need to replace the entire composite gasket; only the graphite layers need to be replaced, reducing maintenance costs and time, improving equipment maintenance efficiency, and also extending the service life of other parts of the composite gasket. The horizontal locking component can effectively resist torque and shear force, preventing relative sliding between the two sets of graphite layers and the metal rings; the vertical locking component can better withstand tensile force, preventing separation, thereby improving the stability of the overall connection, ensuring a good connection under various external forces, improving the firmness of the installation of the graphite layers and the metal ring plate, and ensuring the performance of the graphite layers. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of the two sets of graphite layers and the metal ring plate of this utility model; Figure 3 This is a schematic diagram of the exploded structure of the first threaded column and the first threaded cylinder of this utility model; Figure 4 This is a cross-sectional view of the vertical component of this utility model; Figure 5 This is a cross-sectional view of the horizontal component of this utility model.

[0015] In the diagram: 1. Outer metal ring; 2. Inner metal ring; 3. Metal ring plate; 301. Annular groove; 4. Upper graphite layer; 401. Upper mounting ring plate; 5. Lower graphite layer; 501. Lower mounting ring plate; 6. Lateral locking assembly; 601. First threaded post; 602. First threaded cylinder; 603. First bolt head; 604. First mounting hole; 7. Vertical locking assembly; 701. Second threaded post; 702. Second threaded cylinder; 703. Second bolt head; 704. Second mounting hole. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0018] This utility model discloses a pressure-resistant composite gasket.

[0019] According to the appendix Figure 1-5 As shown, the composite gasket includes an outer metal ring 1 and an inner metal ring 2. The outer metal ring 1 and the inner metal ring 2 are connected at their middle parts by a metal ring plate 3. The top and bottom of the metal ring plate 3 are respectively provided with an upper graphite layer 4 and a lower graphite layer 5. The upper graphite layer 4 and the lower graphite layer 5 are fixedly connected to the metal ring plate 3 by locking components. Before use, the upper graphite layer 4 and the lower graphite layer 5 are first connected to the metal ring plate 3, and then the upper graphite layer 4 and the lower graphite layer 5 are locked to the metal ring plate 3 by locking components. This improves the pressure resistance of the composite gasket. The two sets of graphite layers have good flexibility and self-lubricating properties, which can fill the tiny gaps between the composite gasket and the connecting parts, effectively prevent fluid leakage, play a sealing role, ensure the sealing and stability of the equipment, and prevent media leakage from causing safety accidents or affecting the normal operation of the equipment.

[0020] The locking assembly includes a horizontal locking assembly 6 and a vertical locking assembly 7. The horizontal locking assembly 6 is equidistantly distributed horizontally along the two sets of graphite layers, and the vertical locking assembly 7 is equidistantly distributed vertically along the two sets of graphite layers. During long-term use, the two sets of graphite layers are prone to damage, requiring the disassembly and replacement of the two sets of graphite gaskets. In this case, multiple sets of horizontal locking assemblies 6 and multiple sets of vertical locking assemblies 7 are removed from the inside of the two sets of graphite layers and the inner metal ring 2, the outer metal ring 1, and the metal ring plate 3, without fixing the two sets of graphite layers to the metal ring plate 3. Finally, the two sets of graphite layers are disassembled and replaced from the outer wall of the metal ring plate 3. By making the two sets of graphite layers detachable, it is not necessary to replace the entire composite gasket; only the graphite layers need to be replaced individually. This reduces maintenance costs and time costs, improves equipment maintenance efficiency, and also helps extend the service life of other parts of the composite gasket.

[0021] The metal ring plate 3 has annular grooves 301 at both its top and bottom. An upper mounting ring plate 401 is fixedly connected to the bottom of the upper graphite layer 4, and a lower mounting ring plate 501 is fixedly connected to the top of the lower graphite layer 5. The upper mounting ring plate 401 and the lower mounting ring plate 501 are respectively inserted into the annular grooves 301. When replacing a new graphite layer, first connect the two graphite layers to the metal ring plate 3, so that the mounting ring plates at the two graphite layers are respectively inserted into the annular grooves 301 at the top and bottom of the metal ring plate 3. Then, first pass through multiple sets of horizontal... The two sets of graphite layers and metal ring plate 3, and the outer metal ring 1 and inner metal ring 2 are laterally locked by the locking component 6. Finally, the two sets of graphite layers and metal ring plate 3 are vertically locked by multiple sets of vertical locking components 7. The lateral locking component 6 can effectively resist torque and shear force and prevent relative sliding between the two sets of graphite layers and metal rings. The vertical locking component 7 can better withstand tensile force and prevent the two from separating, thereby improving the stability of the overall connection and ensuring that a good connection is maintained under various external forces.

[0022] The transverse locking assembly 6 includes a first threaded post 601, a first threaded cylinder 602, a first bolt head 603, and a first mounting hole 604. The first mounting hole 604 is formed inside the outer metal ring 1 and the inner metal ring 2. The first bolt head 603 is fixedly installed at the ends of the first threaded post 601 and the first threaded cylinder 602. When locking the graphite layer and the metal ring plate 3 using the transverse locking assembly 6, the first threaded cylinder 602 is first lifted so that one end of the first threaded cylinder 602 passes through the inner metal ring 2 and is threaded into the interior of the two sets of mounting ring plates and the metal ring plate 3. Finally, the first threaded post 601 is lifted so that one end of the first threaded post 601 passes through the outer metal ring 1 and is threaded into the interior of the first threaded cylinder 602. The first threaded cylinder 602 and the first threaded post 601 are respectively connected and fixed from both sides of the two sets of graphite layers, thereby improving the stability of the connection.

[0023] One end of the first threaded cylinder 602 passes through the inner metal ring 2 and is threaded into the upper mounting ring plate 401, the lower mounting ring plate 501, and the metal ring plate 3. One end of the first threaded post 601 passes through the outer metal ring 1 and is threaded into the first threaded cylinder 602. When locking the graphite layer and the metal ring plate 3 by the vertical locking assembly 7, the second threaded cylinder 702 is first lifted so that one end of the second threaded cylinder 702 passes through the upper graphite layer 4 and is threaded into the metal ring plate 3. Finally, the second threaded post 701 is lifted so that one end of the second threaded post 701 passes through the lower graphite layer 5 and is threaded into the second threaded cylinder 702. The second threaded cylinder 702 and the second threaded post 701 are connected and fixed from the top and bottom of the two sets of graphite layers, respectively, thereby improving the stability of the connection.

[0024] The first bolt head 603 is limited and engaged inside the first mounting hole 604. The vertical locking assembly 7 includes a second threaded post 701, a second threaded cylinder 702, a second bolt head 703, and a second mounting hole 704. The second mounting hole 704 is opened inside the upper graphite layer 4 and the lower graphite layer 5. The second bolt head 703 is fixedly installed at the ends of the second threaded post 701 and the second threaded cylinder 702. It should be noted that the inner and outer peripheral walls of the first threaded cylinder 602 and the second threaded cylinder 702 are provided with threads, which facilitates threaded connection with the metal ring plate 3 and enables the corresponding threaded post to be threadedly connected, thereby improving the stability of the connection.

[0025] One end of the second threaded cylinder 702 passes through the upper graphite layer 4 and is threaded into the metal ring plate 3. One end of the second threaded post 701 passes through the lower graphite layer 5 and is threaded into the second threaded cylinder 702. The second bolt head 703 is locked and engaged inside the second mounting hole 704. The second threaded cylinder 702 is located between the upper mounting ring plate 401 and the lower mounting ring plate 501. It should be noted that after the two sets of graphite layers are installed and fixed by the horizontal locking component 6 and the vertical locking component 7 respectively, multiple bolt heads are installed inside the first mounting hole 604 and the second mounting hole 704 respectively, without changing the shape of the composite gasket. For details, please refer to the appendix. Figure 1 .

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure-resistant composite gasket comprising a metal outer ring (1) and a metal inner ring (2), the middle part of the metal outer ring (1) and the metal inner ring (2) being connected by a metal ring plate (3), characterized in that: The top and bottom of the metal ring plate (3) are respectively provided with an upper graphite layer (4) and a lower graphite layer (5), and the upper graphite layer (4) and the lower graphite layer (5) are respectively fixedly connected to the metal ring plate (3) by a locking component. The locking components include a horizontal locking component (6) and a vertical locking component (7). The horizontal locking component (6) is distributed equidistantly in the horizontal direction along the two sets of graphite layers, and the vertical locking component (7) is distributed equidistantly in the vertical direction along the two sets of graphite layers. The transverse locking assembly (6) includes a first threaded post (601), a first threaded cylinder (602), a first bolt head (603) and a first mounting hole (604). The first mounting hole (604) is opened inside the outer metal ring (1) and the inner metal ring (2). The first bolt head (603) is fixedly installed at the ends of the first threaded post (601) and the first threaded cylinder (602). One end of the first threaded cylinder (602) passes through the inner metal ring (2) and is threaded to the inside of the upper mounting ring plate (401), the lower mounting ring plate (501) and the metal ring plate (3). One end of the first threaded column (601) passes through the outer metal ring (1) and is threaded to the inside of the first threaded cylinder (602). The first bolt head (603) is locked inside the first mounting hole (604); The vertical locking assembly (7) includes a second threaded post (701), a second threaded cylinder (702), a second bolt head (703), and a second mounting hole (704). The second mounting hole (704) is opened inside the upper graphite layer (4) and the lower graphite layer (5). The second bolt head (703) is fixedly installed at the ends of the second threaded post (701) and the second threaded cylinder (702). One end of the second threaded cylinder (702) passes through the upper graphite layer (4) and is threaded into the metal ring plate (3), and one end of the second threaded column (701) passes through the lower graphite layer (5) and is threaded into the second threaded cylinder (702); The second bolt head (703) is locked inside the second mounting hole (704), and the second threaded cylinder (702) is located between the upper mounting ring plate (401) and the lower mounting ring plate (501).

2. A pressure-resistant composite gasket according to claim 1, characterized in that: The metal ring plate (3) has an annular groove (301) at both the top and bottom. The bottom of the upper graphite layer (4) is fixedly connected to an upper mounting ring plate (401), and the top of the lower graphite layer (5) is fixedly connected to a lower mounting ring plate (501). The upper mounting ring plate (401) and the lower mounting ring plate (501) are respectively inserted into the annular groove (301).

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