A multi-layer composite structure sealing gasket

Abstract

This utility model relates to the field of sealing gasket technology and discloses a multi-layer composite structure sealing gasket that solves the problem of poor sealing effect of current sealing gaskets. It includes an inner gasket, with two bellows symmetrically fixedly connected to its outer side. A mounting ring is fixedly connected to the end of the bellows away from the inner gasket. An outer gasket is provided on the side of the mounting ring away from the bellows. Multiple wear-resistant particles are evenly distributed on the side of the outer gasket away from the mounting ring. An elastic mechanism is provided between the mounting ring and the inner gasket. The elastic mechanism includes multiple mounting frames fixed to the side of the inner gasket near the mounting ring. A vertical plate is movably sleeved inside the mounting frame, and the side of the vertical plate away from the inner gasket is fixedly connected to the mounting ring. In this utility model, when the outer gasket is compressed, springs two and one deform, allowing the outer gasket to adhere tightly to the contact body under the elastic force of springs two and one, thereby improving the overall sealing effect of the sealing gasket.

Description

Technical Field

[0001] This utility model belongs to the field of sealing gasket technology, specifically a multi-layer composite structure sealing gasket. Background Technology

[0002] Gaskets are connecting materials used between components in machinery, equipment, pipelines, etc., that require sealing. They are mainly made of metal or non-metal sheet materials and processed through cutting, stamping, or shearing. Gaskets play a crucial sealing role in fluid environments, preventing fluid leakage. According to the patent document with authorization announcement number CN206617573U, entitled "Composite Gasket," it includes a metal skeleton, a graphite composite, and a graphite layer. The metal skeleton is formed by bonding two sets of metal sheets. The metal skeleton is covered by the graphite layer, forming three cavities. Each cavity is filled with a graphite composite containing metal particles. At the same time, an adhesive layer is provided on the surface of the metal skeleton in contact with the graphite layer. However, the following defects still exist.

[0003] Both its interior and surface are made of graphite material. Graphite material has a high compaction density and small elastic strain when it is compressed and then depressurized. Therefore, the thickness of the graphite rebounds little after depressurization, which makes the gasket unable to fully recover after use, thus easily leading to a reduction in the sealing performance of the gasket. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a multi-layer composite structure sealing gasket, which effectively solves the problem of poor sealing effect of current sealing gaskets.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer composite structure sealing gasket, including an inner gasket, two bellows are symmetrically fixedly connected to the outer side of the inner gasket, an installation ring is fixedly connected to the end of the bellows away from the inner gasket, an outer gasket is provided on the side of the installation ring away from the bellows, a plurality of wear-resistant particles are uniformly provided on the side of the outer gasket away from the installation ring, and an elastic mechanism is provided between the installation ring and the inner gasket.

[0006] The elastic mechanism includes multiple mounting frames fixed to the side of the inner gasket near the mounting ring. A vertical plate is movably sleeved inside the mounting frame. The side of the vertical plate away from the inner gasket is fixedly connected to the mounting ring. A fixing ring is fixedly connected to the side of the inner gasket near the mounting ring. A guide post is fixedly connected between the mounting frame and the fixing ring. A guide block is movably sleeved on the outside of the guide post. A movable rod is rotatably connected to the outside of the guide block. The end of the movable rod away from the guide block is rotatably connected to the vertical plate. A second spring is fixedly connected between the guide block and the fixing ring. The second spring is sleeved on the outside of the guide post.

[0007] Preferably, the inner gasket is rotatably connected to a rotating shaft on the side near the mounting ring, an external gear is fixedly installed on the outer side of the rotating shaft, and a toothed plate is fixedly connected to the outer side of the guide block, with the toothed plate meshing with the external gear.

[0008] Preferably, a closed circular rod is provided between the inner gasket and the mounting ring. Multiple support blocks are fixedly sleeved on the outer side of the closed circular rod. The support blocks are fixedly connected to the inner gasket. Multiple movable blocks are movably sleeved on the outer side of the closed circular rod. Movable rings are fixedly connected between each movable block. An internal gear is fixedly connected to the inner side of the movable ring. The internal gear meshes with the external gear.

[0009] Preferably, a spring is fixedly connected between the movable block and the support block, and the spring is set on the outside of the closed round rod.

[0010] Preferably, the mounting ring is fixedly connected to an inner cylinder on the side away from the bellows, and an outer cylinder is provided on the outside of the inner cylinder, with the outer gasket fixedly connected to the outer cylinder.

[0011] Preferably, the outer side of the inner cylinder is provided with an external thread, and the inner side of the outer cylinder is provided with an internal thread. The outer cylinder is threaded onto the outer side of the inner cylinder through the internal and external threads.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Through the cooperation between the upright plate, mounting frame, movable rod, guide block, guide column, toothed plate, external gear, rotating shaft, internal gear, movable ring, movable block and closed round rod, when the outer gasket is squeezed, it is easy for spring two and spring one to deform, so that the outer gasket can be tightly attached to the contact body under the action of the elastic force of spring two and spring one, thereby improving the sealing effect of the entire sealing gasket;

[0014] 2. The outer gasket can be installed on the mounting ring by the fit between the outer and inner cylinders and the internal and external threads, and the outer gasket can be replaced when the wear-resistant particles wear out. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the multi-layer composite sealing gasket structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the elastic mechanism structure of this utility model;

[0019] Figure 3This is a schematic diagram of the mounting frame structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the inner and outer cylinders of this utility model.

[0021] In the diagram: 1. Inner gasket; 2. Elastic mechanism; 201. Mounting frame; 202. Internal gear; 203. Movable ring; 204. Support block; 205. Closed round rod; 206. Movable block; 207. Spring 1; 208. Fixed ring; 209. Spring 2; 2010. Guide block; 2011. Guide column; 2012. Movable rod; 2013. Vertical plate; 2014. Rotating shaft; 2015. External gear; 2016. Gear plate; 3. Wear-resistant particles; 4. Inner cylinder; 5. Bellows; 6. Mounting ring; 7. Outer cylinder; 8. Outer gasket; 9. External thread; 10. Internal thread. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example 1, by Figure 1 The present invention relates to a multi-layer composite structure sealing gasket, comprising an inner gasket 1, two corrugated tubes 5 symmetrically fixedly connected to the outer side of the inner gasket 1, an mounting ring 6 fixedly connected to the end of the corrugated tubes 5 away from the inner gasket 1, an outer gasket 8 provided on the side of the mounting ring 6 away from the corrugated tubes 5, and a plurality of wear-resistant particles 3 uniformly provided on the side of the outer gasket 8 away from the mounting ring 6. By setting wear-resistant particles 3, the wear resistance of the outer gasket 8 can be improved. An elastic mechanism 2 is provided between the mounting ring 6 and the inner gasket 1.

[0024] Specifically, by Figure 2-3The elastic mechanism 2 includes multiple mounting frames 201 fixed to the inner gasket 1 near the mounting ring 6. A vertical plate 2013 is movably sleeved inside the mounting frame 201. The side of the vertical plate 2013 away from the inner gasket 1 is fixedly connected to the mounting ring 6. A fixing ring 208 is fixedly connected to the side of the inner gasket 1 near the mounting ring 6. A guide post 2011 is fixedly connected between the mounting frame 201 and the fixing ring 208. A guide block 2010 is movably sleeved on the outside of the guide post 2011. A movable rod 2012 is rotatably connected to the outside of the guide block 2010. The end of the movable rod 2012 away from the guide block 2010 is rotatably connected to the vertical plate 2013. A second spring 209 is fixedly connected between the guide block 2010 and the fixing ring 208. The second spring 209 is sleeved on the outside of the guide post 2011. The inner gasket 1 near the mounting ring 6... A rotating shaft 2014 is rotatably connected to one side. An external gear 2015 is fixedly installed on the outer side of the rotating shaft 2014. A toothed plate 2016 is fixedly connected to the outer side of the guide block 2010. The toothed plate 2016 meshes with the external gear 2015. A closed round rod 205 is provided between the inner gasket 1 and the mounting ring 6. Multiple support blocks 204 are fixedly sleeved on the outer side of the closed round rod 205. The support blocks 204 are fixedly connected to the inner gasket 1. Multiple movable blocks 206 are movably sleeved on the outer side of the closed round rod 205. A movable ring 203 is fixedly connected between each movable block 206. An internal gear 202 is fixedly connected to the inner side of the movable ring 203. The internal gear 202 meshes with the external gear 2015. A spring 207 is fixedly connected between the movable block 206 and the support block 204. The spring 207 is sleeved on the outer side of the closed round rod 205.

[0025] In use, the contact body first presses against the outer gasket 8, causing the mounting ring 6 to move under force, which in turn moves the upright plate 2013 along the mounting frame 201. The movable rod 2012 then drives the guide block 2010 to slide along the guide post 2011. At this time, the second spring 209 deforms and drives the toothed plate 2016 to move. Since the toothed plate 2016 is engaged with the external gear 2015, and the external gear 2015 is engaged with the internal gear 202, the movable ring 203 drives the movable block 206 to slide along the closed round rod 205. At this time, the first spring 207 deforms, causing the outer gasket 8 to be tightly pressed against the contact body under the elastic force of the second spring 209 and the first spring 207, thus improving the sealing effect of the entire sealing gasket.

[0026] Specifically, by Figure 4 As shown, an inner cylinder 4 is fixedly connected to the side of the mounting ring 6 away from the bellows 5. An outer cylinder 7 is provided on the outside of the inner cylinder 4. An outer gasket 8 is fixedly connected to the outer cylinder 7. An external thread 9 is provided on the outside of the inner cylinder 4. An internal thread 10 is provided on the inside of the outer cylinder 7. The outer cylinder 7 is threadedly sleeved on the outside of the inner cylinder 4 through the internal thread 10 and the external thread 9.

[0027] In use, first, put the outer cylinder 7 on the outside of the inner cylinder 4 and rotate it clockwise. Since the external thread 9 and the internal thread 10 are compatible, the outer cylinder 7 moves while rotating until the outer cylinder 7 abuts against the mounting ring 6. At this time, the outer gasket 8 abuts against the inner cylinder 4, realizing the installation of the outer gasket 8. At the same time, when the wear-resistant particles 3 are worn, the outer gasket 8 can also be replaced.

Claims

1. A multi-layer composite structure sealing gasket, comprising an inner gasket (1), characterized in that: Two corrugated pipes (5) are symmetrically fixed to the outer side of the inner gasket (1). An installation ring (6) is fixedly connected to the end of the corrugated pipe (5) away from the inner gasket (1). An outer gasket (8) is provided on the side of the installation ring (6) away from the corrugated pipe (5). A plurality of wear-resistant particles (3) are evenly provided on the side of the outer gasket (8) away from the installation ring (6). An elastic mechanism (2) is provided between the installation ring (6) and the inner gasket (1). The elastic mechanism (2) includes multiple mounting frames (201) fixed to the side of the inner gasket (1) near the mounting ring (6). A vertical plate (2013) is movably sleeved inside each mounting frame (201). The side of the vertical plate (2013) away from the inner gasket (1) is fixedly connected to the mounting ring (6). A fixing ring (208) is fixedly connected to the side of the inner gasket (1) near the mounting ring (6). A guide post is fixedly connected between the mounting frame (201) and the fixing ring (208). 2011), a guide block (2010) is movably sleeved on the outside of the guide post (2011), and a movable rod (2012) is rotatably connected to the outside of the guide block (2010). The end of the movable rod (2012) away from the guide block (2010) is rotatably connected to the upright plate (2013). The guide block (2010) and the fixed ring (208) are fixedly connected to the second spring (209). The second spring (209) is sleeved on the outside of the guide post (2011).

2. The multi-layer composite structure sealing gasket according to claim 1, characterized in that: The inner gasket (1) is rotatably connected to a rotating shaft (2014) on the side near the mounting ring (6). An external gear (2015) is fixedly installed on the outer side of the rotating shaft (2014). A toothed plate (2016) is fixedly connected to the outer side of the guide block (2010). The toothed plate (2016) meshes with the external gear (2015).

3. The multi-layer composite structure sealing gasket according to claim 1, characterized in that: A closed circular rod (205) is provided between the inner gasket (1) and the mounting ring (6). Multiple support blocks (204) are fixedly sleeved on the outer side of the closed circular rod (205). The support blocks (204) are fixedly connected to the inner gasket (1). Multiple movable blocks (206) are movably sleeved on the outer side of the closed circular rod (205). A movable ring (203) is fixedly connected between each movable block (206). An internal gear (202) is fixedly connected to the inner side of the movable ring (203). The internal gear (202) meshes with the external gear (2015).

4. A multi-layer composite structure sealing gasket according to claim 3, characterized in that: A spring (207) is fixedly connected between the movable block (206) and the support block (204), and the spring (207) is sleeved on the outside of the closed round rod (205).

5. A multi-layer composite structure sealing gasket according to claim 1, characterized in that: The mounting ring (6) is fixedly connected to an inner cylinder (4) on the side away from the bellows (5), and an outer cylinder (7) is provided on the outside of the inner cylinder (4). The outer gasket (8) is fixedly connected to the outer cylinder (7).

6. A multi-layer composite structure sealing gasket according to claim 5, characterized in that: The outer side of the inner cylinder (4) is provided with an external thread (9), and the inner side of the outer cylinder (7) is provided with an internal thread (10). The outer cylinder (7) is threadedly connected to the outer side of the inner cylinder (4) through the internal thread (10) and the external thread (9).

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