A type of extrusion sealing gasket

Abstract

This invention discloses a compression-type sealing gasket, comprising a first metal gasket, a second metal gasket, a first flexible washer ring, and a second flexible washer ring. The first and second metal gaskets are detachably connected together, and an annular cavity is enclosed between them. A plurality of symmetrically distributed guide rods are fixedly installed on one end of the first metal gasket facing the annular cavity. Both the first and second flexible washer rings are T-shaped, with a sliding opening at the larger end of each ring that slides along the guide rod. The other ends of the first and second flexible washer rings extend from the ends of the first and second metal gaskets, respectively. A compression spring is sleeved on the guide rod, with both ends of the spring contacting the larger ends of the first and second flexible washer rings, respectively. In this invention, sealing is ensured by dynamically compressing the first and second flexible washer rings.

Description

Technical Field

[0001] This invention relates to the field of gasket technology, and particularly to a compression-type gasket. Background Technology

[0002] A gasket is a mechanical seal between two objects, typically used to prevent leakage caused by pressure, corrosion, and the natural thermal expansion and contraction of pipes. Since machined surfaces are never perfect, gaskets fill in these irregularities. Gaskets are usually made of sheet materials such as paper, rubber, silicone rubber, metal, cork, felt, neoprene, nitrile rubber, fiberglass, or plastic polymers (such as polytetrafluoroethylene).

[0003] Current gaskets tend to age and loosen after a period of time at the connection between two oil pipelines, posing a risk of oil leakage. Therefore, there is a need for a compression-type sealing gasket. Summary of the Invention

[0004] The purpose of this application is to provide a compression-type sealing gasket to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: a compression-type sealing gasket, comprising a first metal gasket, a second metal gasket, a first flexible washer ring, and a second flexible washer ring. The first metal gasket and the second metal gasket are detachably connected together, and an annular cavity is enclosed between the first metal gasket and the second metal gasket. A plurality of symmetrically distributed guide rods are fixedly installed on one end of the first metal gasket facing the annular cavity. Both the first flexible washer ring and the second flexible washer ring are T-shaped. The larger end of the first flexible washer ring and the second flexible washer ring has a sliding opening that is sleeved on the guide rod and slides with the guide rod. The other ends of the first flexible washer ring and the second flexible washer ring extend from the ends of the first metal gasket and the second metal gasket, respectively. A compression spring is sleeved on the guide rod, and the two ends of the compression spring contact the larger ends of the first flexible washer ring and the second flexible washer ring, respectively.

[0006] Preferably, both the first flexible washer ring and the second flexible washer ring are made of high-temperature resistant silicone material.

[0007] Preferably, both the first flexible gasket and the second flexible gasket have a perforation at their center for the pipe to pass through.

[0008] Preferably, the outer sides of the portions of the first flexible gasket and the second flexible gasket that contact the inner walls of the first metal gasket and the second metal gasket are provided with a plurality of evenly spaced annular opening grooves.

[0009] Preferably, one end of the guide rod abuts against the outer wall of the inner end of the second metal gasket.

[0010] Preferably, the first metal washer is threaded with a plurality of locking bolts distributed around its center, and the inner end of the second metal washer is provided with a plurality of threaded holes that are threadedly connected to the locking bolts.

[0011] In summary, the technical effects and advantages of this invention are as follows:

[0012] In this invention, the first and second flexible gaskets are dynamically pushed by the extrusion springs, ensuring that the first and second flexible gaskets are always tightly fitted to the ends of the two connected pipes, thus guaranteeing a seal and effectively preventing leakage of the oil pipeline. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. 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 structure of a compression sealing gasket in an embodiment of this application;

[0015] Figure 2 This is a cross-sectional view of a compression sealing gasket according to an embodiment of this application;

[0016] Figure 3 This is a schematic diagram of the connection structure between the first metal gasket and the second metal gasket of a compression sealing gasket according to an embodiment of this application;

[0017] Figure 4 This application describes a type of extrusion sealing gasket. Figure 3 Diagram of the split structure.

[0018] In the figure: 1. First metal gasket; 2. Second metal gasket; 3. First flexible washer ring; 4. Second flexible washer ring; 5. Locking bolt; 6. Annular chamber; 7. Sliding port; 8. Guide rod; 9. Push spring; 10. Annular opening groove; 11. Threaded hole. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] It should also be noted that all standard parts used in this application are commercially available, and can be custom-made according to the description and drawings. Unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances, and unless explicitly limited, machinery, parts, and equipment can all adopt conventional models in the prior art.

[0022] In this document, the term "comprising" is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] Example: Reference Figure 1-4The illustrated compression sealing gasket includes a first metal gasket 1, a second metal gasket 2, a first flexible washer ring 3, and a second flexible washer ring 4. The first metal gasket 1 and the second metal gasket 2 are detachably connected together, and an annular cavity 6 is enclosed between the first metal gasket 1 and the second metal gasket 2. A plurality of symmetrically distributed guide rods 8 are fixedly installed on one end of the first metal gasket 1 facing the annular cavity 6. The first flexible washer ring 3 and the second flexible washer ring 4 are both T-shaped. The larger end of the first flexible washer ring 3 and the second flexible washer ring 4 has a sliding port 7 that is sleeved on the guide rod 8 and slides with the guide rod 8. The other ends of the first flexible washer ring 3 and the second flexible washer ring 4 extend from the ends of the first metal gasket 1 and the second metal gasket 2, respectively. A compression spring 9 is sleeved on the guide rod 8. The two ends of the push spring 9 contact the larger end of the first flexible washer 3 and the second flexible washer 4, respectively. The first flexible washer 3 and the second flexible washer 4 are provided with through holes for the pipe to pass through. During installation, the first flexible washer 3 and the second flexible washer 4 of this device are passed through the holes to one end of an oil pipe connection, and then the other end of the pipe is connected to the oil pipe. The sealing gasket of this device is between the two pipe connections. The first flexible washer 3 and the second flexible washer 4 are in contact with the connection ends of the two pipes, respectively. The first flexible washer 3 and the second flexible washer 4 can slide on the guide rod. The push spring dynamically pushes the first flexible washer 3 and the second flexible washer 4 so that the first flexible washer 3 and the second flexible washer 4 are always tightly fitted with the two connected pipe ends to ensure sealing and thus effectively prevent oil pipe leakage.

[0024] With the above structure, both the first flexible gasket 3 and the second flexible gasket 4 are made of high-temperature resistant silicone material, which has good sealing performance and good high-temperature resistance and anti-aging effect.

[0025] With the above structure, the outer side of the portion of the first flexible gasket 3 and the second flexible gasket 4 that contacts the inner wall of the first metal gasket 1 and the second metal gasket 2 is provided with several evenly spaced annular opening grooves 10 to improve the sealing effect between the first flexible gasket 3 and the second flexible gasket 4 and the inner wall of the first metal gasket 1 and the second metal gasket 2.

[0026] With the above structure, one end of the guide rod 8 abuts against the outer wall of the inner end of the second metal gasket 2.

[0027] With the above structure: the first metal washer 1 is threaded with a plurality of locking bolts 5 distributed around its center, and the inner end of the second metal washer 2 is provided with a plurality of threaded holes 11 that are threaded to the locking bolts 5. During installation, the first flexible washer 3, the push spring and the second flexible washer 4 are first sleeved on the guide rod in sequence, and then the second metal washer is sleeved on the second flexible washer 4. Then the locking bolts are screwed into the threaded holes 11 of the second metal washer to complete the installation. The installation and disassembly are convenient.

[0028] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A compressible sealing gasket, characterized in that: The device includes a first metal gasket (1), a second metal gasket (2), a first flexible washer ring (3), and a second flexible washer ring (4). The first metal gasket (1) and the second metal gasket (2) are detachably connected together. An annular cavity (6) is enclosed between the first metal gasket (1) and the second metal gasket (2). Several symmetrically distributed guide rods (8) are fixedly installed on the end of the first metal gasket (1) facing the annular cavity (6). The first flexible washer ring (3) and the second flexible washer ring (4) are both T-shaped. The larger end of the first flexible washer ring (3) and the second flexible washer ring (4) has a sliding joint that is sleeved on the guide rod (8) and slides with the guide rod (8). The other ends of the first flexible washer (3) and the second flexible washer (4) extend from the ends of the first metal washer (1) and the second metal washer (2), respectively. A push spring (9) is sleeved on the guide rod (8). The two ends of the push spring (9) are in contact with the larger end of the first flexible washer (3) and the second flexible washer (4), respectively. Several evenly spaced annular opening grooves (10) are opened on the outer side of the part of the first flexible washer (3) and the second flexible washer (4) that are in contact with the inner wall of the first metal washer (1) and the second metal washer (2). One end of the guide rod (8) abuts against the outer wall of the inner end of the second metal washer (2).

2. The extrusion-type sealing gasket according to claim 1, characterized in that: The first flexible gasket (3) and the second flexible gasket (4) are both made of high-temperature resistant silicone material.

3. The extrusion-type sealing gasket according to claim 1, characterized in that: Both the first flexible gasket (3) and the second flexible gasket (4) have perforations at their centers for the pipe to pass through.

4. The extrusion-type sealing gasket according to claim 1, characterized in that: The first metal gasket (1) is threaded with a plurality of locking bolts (5) distributed around its center, and the inner end of the second metal gasket (2) is provided with a plurality of threaded holes (11) that are threaded to the locking bolts (5).

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