Wear-resistant sealing gasket

Abstract

The utility model relates to a wear-resistant sealing gasket which comprises a base ring, a wear-resistant assembly is arranged on the surface of the base ring, the wear-resistant assembly comprises an outer ring sleeve arranged on the surface of the base ring in a sleeved mode and two wear-resistant pieces arranged in the outer ring sleeve, and the base ring is located between the two wear-resistant pieces. A protruding block is inserted into a protruding groove formed in the circumferential face of each abrasion-resistant piece, the outer ring of each protruding block is fixedly connected with the outer ring sleeve, the adjacent faces of the two abrasion-resistant pieces are fixedly connected with a limiting ring and an L-shaped ring respectively, and it is guaranteed that the sealing gasket keeps a stable sealing state in the working process. The wear-resisting piece is matched with the outer ring sleeve, the wear-resisting capacity is high, the wear-resisting piece is suitable for various corrosion environments, friction loss is reduced, the protruding blocks are matched with the protruding grooves, the wear-resisting piece can be rapidly assembled and disassembled, maintenance is easy, convenient and efficient, a cross rod penetrating structure and spring hemispheres are locked, vibration resistance and looseness prevention are achieved, and dynamic stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of sealing gasket technology, and in particular to a wear-resistant sealing gasket. Background Technology

[0002] In modern industry, gaskets are a key component for ensuring the stable operation of equipment systems. They are widely used in many industries such as petrochemicals, power energy, machinery manufacturing, food and medicine. Whether it is for high-temperature and high-pressure pipeline connections, storage and transportation of highly corrosive media, or sealing and protection of precision instruments, gaskets play an important role in preventing fluid leakage, isolating different media, and ensuring the safe and stable operation of equipment.

[0003] In actual working conditions, most existing gaskets mainly adopt a single material or simple composite structure design. Although traditional rubber gaskets have good elasticity and sealing performance, they are not wear-resistant enough in high friction and strong media scouring environments, and are prone to surface wear, tearing and other phenomena, leading to sealing failure.

[0004] Most gaskets on the market adopt an integral structure design, with wear-resistant parts tightly integrated with the gasket base, making them difficult to separate. When the wear-resistant parts of the gasket are severely worn due to factors such as media erosion, mechanical vibration, and friction during long-term use, users cannot replace key components such as the worn wear rings individually. Instead, they have to disassemble and replace the entire gasket. This approach not only results in a large amount of material waste but also significantly increases production costs and maintenance time. Utility Model Content

[0005] To overcome the technical defects of the existing technology, this utility model provides a wear-resistant sealing gasket.

[0006] The technical solution adopted by this utility model is: a wear-resistant sealing gasket, including a base ring, the surface of which is provided with a wear-resistant component, the wear-resistant component including an outer ring sleeve fitted on the surface of the base ring and two wear-resistant plates disposed inside the outer ring sleeve, the base ring being located between the two wear-resistant plates, a protrusion being inserted into a groove opened on the circumferential surface of each wear-resistant plate, the outer ring of the protrusion being fixedly connected to the outer ring sleeve, and a limit ring and an L-shaped ring being fixedly connected to adjacent sides of the two wear-resistant plates respectively, to ensure that the sealing gasket maintains a stable sealing state during operation.

[0007] Preferably, the L-shaped ring is located inside the limiting ring, and the two limiting rings are respectively inserted into two second ring grooves symmetrically opened on the surface of the base ring, and the two L-shaped rings are respectively inserted into two first ring grooves symmetrically opened on the surface of the base ring, which effectively prevents the wear-resistant plate from shifting or rotating when the sealing gasket is working, and ensures the reliability of the seal.

[0008] Preferably, a limiting block is inserted into the limiting groove opened on the adjacent side of the two limiting rings. The limiting block is fixedly connected to the base ring, which effectively restricts the slight movement of the wear-resistant sheet, prevents the sealing performance from being affected by positional displacement, and ensures the stability of the sealing gasket during long-term use.

[0009] Preferably, the surface of the base ring is provided with a positioning component, the positioning component including a side plate inserted into an embedded groove in the surface of the base ring, and two crossbars fixedly connected to the surface of the side plate, each of the crossbars being inserted into a slot in the surface of the base ring, effectively improving the reliability of the sealing gasket under complex working conditions.

[0010] Preferably, the two crossbars are respectively inserted into the slots 2 opened on the surfaces of the two limiting rings, and the limiting rings and crossbars are slidably connected. The two crossbars are respectively inserted into the slots 4 opened on the surfaces of the two L-shaped rings, and the crossbars and L-shaped rings are slidably connected, so as to avoid component damage caused by rigid connection and improve the environmental adaptability of the sealing gasket.

[0011] Preferably, a second crossbar is provided between the two first crossbars. The second crossbar is inserted into a slot three opened inside the base ring. The second crossbar and the base ring are slidably connected. The first embedded groove and the third slot are connected. This can effectively absorb the stress generated by vibration, pressure fluctuations, etc. during the operation of the sealing gasket, prevent structural loosening, and ensure the long-term stable operation of the sealing gasket.

[0012] Preferably, a block is inserted into the square groove on the upper surface of the second crossbar, and the block and the second crossbar are slidably connected. A spring is installed in the space formed by the block and the second crossbar, and the two ends of the spring are fixedly connected to the block and the second crossbar respectively. A hemisphere is fixedly connected to the upper surface of the block, and the hemisphere is inserted into a ball groove inside the base ring. The ball groove and the slot three are connected to each other, so as to realize the automatic locking of the second crossbar, prevent it from loosening during the operation of the sealing gasket, and make the operation simple and quick, and facilitate the maintenance and repair of the sealing gasket.

[0013] Preferably, the surface of the limiting ring is provided with an embedding groove 2, and the side plate is inserted into the embedding groove 2. The side plate is located inside the outer ring sleeve, which effectively reduces the gap between the components, prevents the medium from leaking from the gap, and the outer ring sleeve can protect the side plate, avoid damage to it from external factors, and improve the service life of the sealing gasket.

[0014] The beneficial effects of this utility model are as follows: The addition of wear-resistant components to this utility model, with wear-resistant plates paired with outer ring sleeves, provides strong wear resistance, is suitable for various corrosive environments, reduces friction loss, and the cooperation between protrusions and grooves enables quick installation and removal of wear-resistant plates, making maintenance simple and efficient. At the same time, the addition of positioning components, with crossbar through-structure and spring hemispherical locking, provides vibration resistance and prevents loosening, ensuring dynamic stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Sectional view at point AA;

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle;

[0019] Figure 5 This is a schematic diagram of the wear-resistant sheet and the limiting ring in this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the protrusion and outer ring sleeve in this utility model;

[0021] Figure 7 This is a schematic diagram of the crossbar and side plate in this utility model;

[0022] Figure 8 This is a schematic diagram of the base ring and the limiting ring in this utility model;

[0023] Figure 9 This is a schematic diagram of the structure of the L-shaped ring and the limiting ring in this utility model;

[0024] Figure 10 This is a schematic diagram of the base ring structure in this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Base ring; 2. Wear-resistant component; 21. Wear-resistant plate; 22. L-shaped ring; 23. Limiting ring; 24. First ring groove; 25. Second ring groove; 26. Protrusion groove; 27. Protrusion; 28. Outer ring sleeve; 29. ​​Limiting block; 210. Limiting groove; 3. Positioning component; 31. Slot one; 32. Slot two; 33. Crossbar one; 34. Crossbar two; 35. Side plate; 36. Slot three; 37. Embedded groove one; 38. Embedded groove two; 39. Hemisphere; 310. Ball groove; 311. Block; 312. Spring; 313. Square groove; 314. Slot four. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1 to 10 As shown, this embodiment provides a wear-resistant sealing gasket, including a base ring 1. The surface of the base ring 1 is provided with a wear-resistant component 2. The wear-resistant component 2 includes an outer ring sleeve 28 sleeved on the surface of the base ring 1 and two wear-resistant plates 21 disposed inside the outer ring sleeve 28. The base ring 1 is located between the two wear-resistant plates 21. A protrusion 27 is inserted into a groove 26 opened on the circumferential surface of each wear-resistant plate 21. The outer ring of the protrusion 27 is fixedly connected to the outer ring sleeve 28. A limit ring 23 and an L-shaped ring 22 are fixedly connected to adjacent sides of the two wear-resistant plates 21, respectively.

[0028] In this implementation scheme: by setting the wear-resistant plate 21 on both sides of the base ring 1, a double-layer wear-resistant protection structure can be formed, which can effectively resist the erosion of the medium and mechanical friction, and extend the service life of the sealing gasket; the matching design of the protrusion 27 and the groove 26 makes the wear-resistant plate 21 firmly connected to the outer ring 28, and facilitates the disassembly and replacement of worn parts; the setting of the limiting ring 23 and the L-shaped ring 22 can accurately position the wear-resistant plate 21 during installation, ensuring that the sealing gasket maintains a stable sealing state during operation.

[0029] Furthermore:

[0030] In an optional embodiment, the L-shaped ring 22 is located inside the limiting ring 23, the two limiting rings 23 are respectively inserted into two second ring grooves 25 symmetrically opened on the surface of the base ring 1, and the two L-shaped rings 22 are respectively inserted into two first ring grooves 24 symmetrically opened on the surface of the base ring 1.

[0031] In this implementation scheme: This nested annular groove mating structure can achieve both radial and axial positioning of the wear-resistant plate 21 during installation, effectively preventing the wear-resistant plate 21 from shifting or rotating during the operation of the sealing gasket, thus ensuring the reliability of the seal; at the same time, the symmetrically distributed annular groove design allows the sealing gasket to evenly distribute the force when under pressure, avoiding premature wear or seal failure caused by local stress concentration.

[0032] Furthermore:

[0033] In an optional embodiment, a limiting block 29 is inserted into a limiting groove 210 on an adjacent side of the two limiting rings 23, and the limiting block 29 is fixedly connected to the base ring 1.

[0034] In this implementation scheme: the cooperation between the limiting block 29 and the limiting groove 210 further enhances the positioning accuracy between the wear-resistant plate 21 and the base ring 1, and can quickly and accurately fix the wear-resistant plate 21 in the predetermined position during installation, reducing installation errors; during the operation of the sealing gasket, it can effectively limit the slight movement of the wear-resistant plate 21, prevent the sealing performance from being affected by positional deviation, and ensure the stability of the sealing gasket during long-term use.

[0035] Furthermore:

[0036] In an optional embodiment, a positioning component 3 is provided on the surface of the base ring 1. The positioning component 3 includes a side plate 35 inserted into an embedded groove 37 on the surface of the base ring 1. Two crossbars 33 are fixedly connected to the surface of the side plate 35, and each crossbar 33 is inserted into a slot 31 on the surface of the base ring 1.

[0037] In this implementation scheme: the positioning component 3 can perform secondary positioning and reinforcement on the wear-resistant component 2 after installation, ensuring the stability of the entire sealing gasket structure; the cooperation between the side plate 35 and the embedded groove 37 can prevent the positioning component 3 from axially moving when the sealing gasket is working; the connection between the crossbar 33 and the slot 31 enhances the radial stability of the positioning component 3, effectively improving the reliability of the sealing gasket under complex working conditions.

[0038] Furthermore:

[0039] In an optional embodiment, two crossbars 33 are respectively inserted through slots 32 opened on the surfaces of two limiting rings 23, and the limiting rings 23 and crossbars 33 are slidably connected. The two crossbars 33 are respectively inserted through slots 314 opened on the surfaces of two L-shaped rings 22, and the crossbars 33 and L-shaped rings 22 are slidably connected.

[0040] In this implementation scheme: the design of the crossbar 33 penetrating through the limiting ring 23 and the L-shaped ring 22 tightly connects the positioning component 3 and the wear-resistant component 2 into a whole, further enhancing the structural strength of the sealing gasket; the sliding connection method ensures a tight connection while allowing the wear-resistant plate 21 to undergo slight displacement within a certain range due to factors such as thermal expansion and contraction, avoiding component damage caused by rigid connection and improving the environmental adaptability of the sealing gasket.

[0041] Furthermore:

[0042] In an optional embodiment, a second crossbar 34 is provided between the two first crossbars 33. The second crossbar 34 is inserted into a third slot 36 opened inside the base ring 1. The second crossbar 34 and the base ring 1 are slidably connected, and the first embedded groove 37 and the third slot 36 are connected.

[0043] In this implementation scheme: the second crossbar 34 provides lateral support for the first crossbar 33, enhancing the overall rigidity of the positioning assembly 3 and making it less prone to deformation when subjected to external forces; the sliding connection between the second crossbar 34 and the base ring 1, together with the sliding connection between the first crossbar 33 and the limiting ring 23 and the L-shaped ring 22, can effectively absorb the stress generated by vibration and pressure fluctuations during the operation of the sealing gasket, prevent structural loosening, and ensure the long-term stable operation of the sealing gasket.

[0044] Furthermore:

[0045] In an optional embodiment, a block 311 is inserted into a square groove 313 on the upper surface of the second crossbar 34. The block 311 and the second crossbar 34 are slidably connected. A spring 312 is provided in the space formed by the block 311 and the second crossbar 34. The two ends of the spring 312 are fixedly connected to the block 311 and the second crossbar 34, respectively. A hemisphere 39 is fixedly connected to the upper surface of the block 311. The hemisphere 39 is inserted into a ball groove 310 inside the base ring 1. The ball groove 310 is connected to the interior of the slot 36.

[0046] In this implementation scheme, the spring 312, hemisphere 39, and ball groove 310 cooperate to form an elastic locking structure. After the positioning component 3 is installed in place, the spring 312 pushes the hemisphere 39 into the ball groove 310, thereby automatically locking the crossbar 34 and preventing it from loosening during the operation of the sealing gasket. When it is necessary to disassemble the positioning component 3, simply apply a certain external force to compress the spring 312, causing the hemisphere 39 to disengage from the ball groove 310, and it can be easily disassembled. The operation is simple and quick, which facilitates the maintenance and repair of the sealing gasket.

[0047] Furthermore:

[0048] In an optional embodiment, the surface of the limiting ring 23 is provided with an embedding groove 38, and the side plate 35 is inserted into the embedding groove 38, with the side plate 35 located inside the outer ring sleeve 28.

[0049] In this implementation scheme: the fit between the embedded groove 38 and the side plate 35 makes the connection between the positioning component 3 and the wear-resistant component 2 tighter, effectively reducing the gap between the components and preventing the medium from leaking from the gap; at the same time, the design of the side plate 35 located inside the outer ring sleeve 28 makes the overall structure of the sealing gasket more compact, and it can be installed smoothly even in the case of limited installation space. In addition, the outer ring sleeve 28 can protect the side plate 35, preventing it from being damaged by external factors and improving the service life of the sealing gasket.

[0050] Working principle: The wear-resistant plate 21 is made of polytetrafluoroethylene composite material. Polytetrafluoroethylene has a low coefficient of friction, good corrosion resistance and chemical resistance. When combined with reinforcing materials such as glass fiber and carbon fiber, it can improve its mechanical strength and wear resistance, making it suitable for sealing applications in various chemical media, while reducing friction and wear.

[0051] The material of the bump 27 is nitrile rubber, which has good elasticity, oil resistance and certain wear resistance. The use of nitrile rubber in the bump 27 can ensure a tight fit with the wear-resistant plate 21 while adapting to a certain degree of deformation and vibration, thus playing a role in buffering and sealing.

[0052] The outer ring 28 is made of glass fiber reinforced nylon, which has high strength, rigidity and wear resistance, as well as good corrosion resistance and insulation. It can reduce the weight of the sealing gasket and has better adaptability in some special working environments.

[0053] When installing the wear-resistant plate 21, first place the two wear-resistant plates 21 together on the upper and lower surfaces of the base ring 1. At this time, the limiting ring 23 on the wear-resistant plate 21 will be accurately inserted into the second annular groove 25 symmetrically opened on the surface of the base ring 1, and the L-shaped ring 22 will be inserted into the first annular groove 24. This design, through the cooperation of the annular groove and the ring, initially determines the position of the wear-resistant plate 21 on the base ring 1, and plays a positioning role.

[0054] The outer ring sleeve 28 is fitted onto the circumferential surface of the base ring 1. Due to the suitable elasticity of the protrusion 27 and the outer ring sleeve 28, when a force is applied to the outer ring sleeve 28, the protrusion 27 will deform to a certain extent and then insert into the grooves 26 opened on the circumferential surface of the two wear-resistant plates 21 respectively. The cooperation between the protrusion 26 and the groove 27 firmly fixes the wear-resistant plate 21 between the outer ring sleeve 28 and the base ring 1. This installation method does not require complicated tools and cumbersome operations, and the installation process is simple and efficient.

[0055] During the operation of the gasket, the wear-resistant plate 21 and the outer ring 28 have good wear resistance due to their special materials. When the gasket is subjected to external friction, media scouring and other forces, the wear-resistant plate 21, as the part that is in direct contact with the outside world, effectively resists wear with its own wear-resistant material, protects the base ring 1 from wear, and thus ensures the sealing performance of the gasket. At the same time, the outer ring 28 not only plays a role in fixing the wear-resistant plate 21, but its own material can also help the wear-resistant plate 21 to share some of the wear, further improving the overall wear resistance of the gasket.

[0056] When the wear-resistant plate 21 is worn to a certain extent and needs to be replaced, simply apply appropriate external force to the outer ring 28 to make the protrusion 27 disengage from the groove 26. Due to the elasticity of the protrusion 27 and the outer ring 28, this operation is relatively easy. After the protrusion 27 disengages from the groove 26, the worn wear-resistant plate 21 can be easily removed and a new wear-resistant plate 21 can be replaced. The whole replacement process is simple and convenient, which greatly improves the maintenance efficiency of the sealing gasket.

[0057] When the two wear-resistant plates 21 are placed on the upper and lower surfaces of the base ring 1, the limiting groove 210 on the surface of the upper limit ring 23 of the wear-resistant plate 21 will be aligned with the limiting block 29 on the base ring 1. The limiting block 29 will automatically insert into the limiting groove 210. This action restricts the relative position between the limiting ring 23 and the base ring 1, so that the slot 1 31 on the surface of the base ring 1 and the slot 2 32 on the surface of the limiting ring 23 are connected internally, which prepares for the subsequent insertion of the crossbar 33 and completes the initial positioning of the wear-resistant plate 21 on the base ring 1.

[0058] After the initial positioning of the wear-resistant plate 21 is completed, the side plate 35 is operated and inserted into the embedding groove 37 opened on the surface of the base ring 1. At this time, the two crossbars 33 on the side plate 35 will be inserted into the slots 32 inside the two limiting rings 23 respectively, and pass through the slots 314 opened on the surface of the L-shaped ring 22, and finally inserted into the slot 31 on the surface of the base ring 1. The insertion of the crossbars 33 tightly connects the limiting ring 23, the L-shaped ring 22 and the base ring 1 together, further restricting the position of the two limiting rings 23 and enhancing the firmness of the connection between the wear-resistant plate 21 and the base ring 1.

[0059] Meanwhile, as the crossbar 33 is inserted into the slot 31, the crossbar 34 will be inserted into the slot 36 inside the base ring 1. When the side plate 35 is fully fitted with the embedded groove 37, the hemisphere 39 on the upper surface of the crossbar 34 will be inserted into the ball groove 310 inside the base ring 1. At this time, the spring 312 is in a compressed state and applies an inward force to the crossbar 34 by means of its elastic potential energy, which firmly fixes the crossbar 34 in the slot 36. Under the action of a small external force, the crossbar 34 will not come out of the slot 36, thereby effectively restricting the position of the side plate 35.

[0060] When the outer ring sleeve 28 is fitted onto the surface of the base ring 1, it will further restrict the position of the side plate 35. Since the side plate 35 is inserted into the first embedding groove 37 of the base ring 1, its two ends will be inserted into the second embedding groove 38 on the surface of the limiting ring 23, so that the surface of the side plate 35 and the circumferential surface of the base ring 1 can smoothly transition. When the outer ring sleeve 28 is fitted onto the base ring 1, it will fit tightly against the side plate 35, further preventing the side plate 35 from shifting. This ensures the firmness of the connection between the wear-resistant plate 21 and the base ring 1 from multiple angles and levels, ensuring the stability and reliability of the sealing gasket during use.

[0061] 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 may be made to this utility model without departing from the spirit and scope of the invention. All such changes and modifications fall within the scope of the invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A wear resistant gasket comprising a base ring (1) characterised in that: The surface of the base ring (1) is provided with a wear-resistant assembly (2), the wear-resistant assembly (2) comprises an outer ring sleeve (28) sleeved on the surface of the base ring (1) and two wear-resistant sheets (21) arranged inside the outer ring sleeve (28), the base ring (1) is located between the two wear-resistant sheets (21), the circumferential surface of each wear-resistant sheet (21) is provided with a convex groove (26), and a convex block (27) is arranged in the convex groove (26) respectively, the outer circle of the convex block (27) is fixedly connected with the outer ring sleeve (28), and the adjacent surfaces of the two wear-resistant sheets (21) are fixedly connected with a limiting ring (23) and an L-shaped ring (22) respectively.

2. A wear resistant gasket according to claim 1, wherein: The L-shaped ring (22) is located inside the limiting ring (23), the two limiting rings (23) are respectively arranged in two second ring grooves (25) symmetrically formed on the surface of the base ring (1), and the two L-shaped rings (22) are respectively arranged in two first ring grooves (24) symmetrically formed on the surface of the base ring (1).

3. A wear resistant gasket according to claim 1, wherein: The adjacent surfaces of the two limiting rings (23) are respectively provided with a limiting groove (210), and a limiting block (29) is arranged in the limiting groove (210), and the limiting block (29) is fixedly connected with the base ring (1).

4. A wear resistant gasket according to claim 1, wherein: The surface of the base ring (1) is provided with a positioning assembly (3), the positioning assembly (3) comprises a side plate (35) arranged in an embedding groove one (37) formed on the surface of the base ring (1), and the surface of the side plate (35) is fixedly connected with two horizontal rods one (33); each horizontal rod one (33) is arranged in an insertion groove one (31) formed on the surface of the base ring (1).

5. A wear resistant gasket according to claim 4, wherein: The two horizontal rods one (33) are respectively arranged in insertion grooves two (32) formed on the surfaces of the two limiting rings (23) in a penetrating mode, the limiting ring (23) and the horizontal rod one (33) are in sliding connection, the two horizontal rods one (33) are respectively arranged in insertion grooves four (314) formed on the surfaces of the two L-shaped rings (22) in a penetrating mode, and the horizontal rod one (33) and the L-shaped ring (22) are in sliding connection.

6. A wear resistant gasket according to claim 4, wherein: A horizontal rod two (34) is arranged between the two horizontal rods one (33), the horizontal rod two (34) is arranged in an insertion groove three (36) formed in the base ring (1) in a penetrating mode, the horizontal rod two (34) and the base ring (1) are in sliding connection, and the embedding groove one (37) and the insertion groove three (36) are in communication.

7. A wear resistant gasket according to claim 6, wherein: A square block (311) is arranged in a square groove (313) formed on the upper surface of the horizontal rod two (34), the square block (311) and the horizontal rod two (34) are in sliding connection, a spring (312) is arranged in a space formed by the square block (311) and the horizontal rod two (34), both ends of the spring (312) are fixedly connected with the square block (311) and the horizontal rod two (34), a hemisphere (39) is fixedly connected to the upper surface of the square block (311), the hemisphere (39) is arranged in a ball groove (310) formed in the base ring (1) in a penetrating mode, and the ball groove (310) and the interior of the insertion groove three (36) are in communication.

8. A wear resistant gasket according to claim 4, wherein: The surface of the limiting ring (23) is provided with an embedding groove two (38), the side plate (35) is arranged in the embedding groove two (38), and the side plate (35) is located inside the outer ring sleeve (28).

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