A combined durable metal oval ring gasket

Abstract

The present invention discloses a combined durable metal elliptical ring gasket, comprising a base ring, a buffer ring gasket and a contact action ring, wherein two protrusions are arranged in each assembly hole on the base ring, a spring is arranged between the two protrusions in the same assembly hole, and the protrusion groove is assembled with the corresponding protrusion located on one side of the contact action ring. The benefits of the present invention are as follows: the metal elliptical ring gasket in an assembled form is conducive to independently disassembling and replacing part of the structure of the elliptical contact seal, avoiding overall replacement, and the purchase and replacement cost is low; by assembling and setting the buffer ring gasket between the base ring and the contact action ring, and combining the springs distributed in an annular manner between the two buffer ring gaskets, it has the structural function of elastic telescopic compensation, so that the metal elliptical ring gasket can be inserted between the annular seams of the two workpieces, and it is not easy to fall off; it can buffer and dissipate the instantaneous impact of external stress, reduce the degree of damage to the contact action ring, and extend the service life.

Description

Technical Field

[0001] The invention relates to the field of metal elliptical ring gaskets, in particular to a combined durable metal elliptical ring gasket. Background Art

[0002] The oval metal ring gasket is a mechanical seal widely used in the fields of petroleum, chemical industry, aerospace, etc. The general metal oval ring gasket is an integrated structure with the following defects: 1. Once the sealing contact surface is damaged and the sealing effect is reduced, it usually needs to be replaced as a whole, which has a high purchase cost; 2. The hard material has poor elastic deformation reset, which makes it inconvenient to install and pre-fix between the ring seams; 3. The effect of dealing with external stress impact is poor, the probability of being damaged increases, and the service life is shortened. Therefore, a combined durable metal oval ring gasket is proposed to address the above problems. Summary of the invention

[0003] The object of the present invention is to provide a combined durable metal oval ring gasket in order to solve the above problems.

[0004] The present invention achieves the above-mentioned purpose through the following technical scheme: a combined durable metal elliptical ring gasket, including a base ring, a buffer ring gasket and a contact action ring. Two protrusions are provided in each assembly hole on the base ring, and the two protrusions are riveted together by a pressure rivet block. Each of the protrusions is formed by a concave groove distributed on the buffer ring gasket. A spring is provided between the two protrusions located in the same assembly hole, and the protrusions corresponding to the one side of the contact action ring are assembled together in the groove.

[0005] Preferably, the base ring is combined with the buffer ring pads and contact action rings located on both sides of the base ring from the inside to the outside to form a complete metal elliptical ring pad.

[0006] Preferably, the base ring and the contact action ring are both made of stainless steel metal material, and the contact action ring is the short axis portion of an elliptical cross section.

[0007] Preferably, the buffer ring pad is made of high temperature resistant and corrosion resistant rubber material.

[0008] Preferably, a positioning groove is provided in the middle of the surface of the protruding block, and the positioning groove is in contact with one end of the spring.

[0009] Preferably, the protrusion is processed into a hard structure, and the cross-sectional specifications and shapes of the protrusion are consistent with the assembly hole.

[0010] Preferably, two riveting holes are provided in the molded groove, and the riveting holes are in contact with corresponding parts of the riveting block.

[0011] Preferably, two side surfaces of the buffer ring pad are in close contact with the surface of the base ring and the surface of the contact action ring respectively.

[0012] The beneficial effects of the present invention are:

[0013] 1. The metal elliptical ring gasket in assembled form is conducive to the independent disassembly and replacement of the elliptical contact seal part structure, avoiding the overall replacement, and the purchase and replacement cost is low;

[0014] Second, by assembling and setting a buffer ring pad between the base ring and the contact action ring, and combining the springs distributed in an annular manner between the two buffer ring pads, it has a structural function of elastic expansion and contraction compensation, so that the metal elliptical ring pad can be inserted between the annular gaps of the two workpieces without being easy to fall off;

[0015] 3. One side of the contact ring is connected to the buffer ring pad, and the short axis part of the contact ring with an elliptical cross-section is used as the sealing contact surface, which increases the contact area between the external stress extrusion deformation and the structural sealing surface, can buffer and dissipate the instantaneous impact of external stress, reduce the damage degree of the contact ring, and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is an exploded view of the overall structure of the present invention;

[0018] Figure 2 Schematic diagram of the base ring structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the connection structure of the buffer ring pad of the present invention;

[0020] Figure 4 This is a schematic diagram of the connection structure between the base ring and the buffer ring pad of the present invention;

[0021] Figure 5 It is a cross-sectional view of the overall structure of the present invention.

[0022] In the figure: 1, base ring; 110, assembly hole; 2, buffer ring pad; 210, profile groove; 220, profile protrusion; 230, rivet hole; 240, positioning groove; 3, contact action ring; 310, profile block; 4, spring; 5, riveting block. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0025] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] See also Figure 1-5 As shown, a combined durable metal elliptical ring gasket includes a base ring 1, a buffer ring gasket 2 and a contact action ring 3. Two protrusions 220 are arranged in each assembly hole 110 on the base ring 1, and the two protrusions 220 are riveted together by a rivet block 5. Each protrusion 220 is formed by a concave groove 210 distributed on the buffer ring gasket 2. A spring 4 is arranged between the two protrusions 220 in the same assembly hole 110. The groove 210 is assembled with a corresponding block 310 located on one side of the contact action ring 3.

[0027] By assembling and setting the buffer ring pad 2 between the base ring 1 and the contact action ring 3, and combining the spring 4 distributed in an annular manner between the two buffer ring pads 2, a structural function of elastic expansion and contraction compensation is provided, so that the metal elliptical ring pad can be inserted between the annular gaps of the two workpieces without being easy to fall off;

[0028] One side of the contact action ring 3 is connected to the buffer ring pad 2, and the short axis part of the contact action ring 3 with an elliptical cross-section is used as the sealing contact surface, which increases the contact area between the external stress extrusion deformation and the structural sealing surface, can buffer and dissipate the instantaneous impact of external stress, reduce the damage degree of the contact action ring 3, and extend the service life.

[0029] like Figure 5 As shown, the base ring 1 is combined with the buffer ring pads 2 and the contact action rings 3 located on both sides of the base ring 1 from the inside to the outside to form a complete metal elliptical ring pad, which has a ring pad structure for special sealing;

[0030] The base ring 1 and the contact ring 3 are both made of stainless steel metal materials, and the contact ring 3 is the short axis portion of an elliptical cross section. The short axis portion of the contact ring 3 with an elliptical cross section is used as a sealing contact surface, thereby increasing the contact area between the external stress extrusion deformation and the structural sealing surface;

[0031] The buffer ring pad 2 is made of a high temperature resistant and corrosion resistant rubber material, which enhances the durability of the buffer ring pad 2.

[0032] like Figure 3 As shown, a positioning groove 240 is provided in the middle of the surface of the protrusion 220, and the positioning groove 240 contacts one end of the spring 4 to limit the position of the spring 4 between the two protrusions 220 to prevent movement.

[0033] The protrusion 220 is processed into a hard structure, and the cross-sectional shape of the protrusion 220 matches the assembly hole 110, thereby enhancing the connection strength between the base ring 1 and the buffer ring pad 2, and playing a role in connection positioning.

[0034] Two rivet holes 230 are formed in the molded groove 210 , and the rivet holes 230 are in contact with corresponding parts of the pressure riveting block 5 , which helps to firmly connect the two buffer ring pads 2 .

[0035] The two side surfaces of the buffer ring pad 2 are in close contact with the surface of the base ring 1 and the surface of the contact action ring 3 respectively, and the close contact method is not limited to adhesive connection.

[0036] When the present invention is used, the metal elliptical ring gasket in an assembled form is adopted, which is conducive to independently disassembling and replacing a part of the structure of the elliptical contact seal, avoiding overall replacement, and the purchase and replacement cost is low.

[0037] By assembling and setting the buffer ring pad 2 between the base ring 1 and the contact action ring 3, and combining the spring 4 distributed in an annular manner between the two buffer ring pads 2, a structural function of elastic expansion and contraction compensation is provided, so that the metal elliptical ring pad can be inserted between the annular gaps of the two workpieces without being easy to fall off;

[0038] One side of the contact action ring 3 is connected to the buffer ring pad 2, and the short axis part of the contact action ring 3 with an elliptical cross-section is used as the sealing contact surface, which increases the contact area between the external stress extrusion deformation and the structural sealing surface, can buffer and dissipate the instantaneous impact of external stress, reduce the damage degree of the contact action ring 3, and extend the service life.

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0040] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A combined durable metal oval ring gasket, characterized in that: The invention comprises a base ring (1), a buffer ring pad (2) and a contact action ring (3), wherein two protrusions (220) are arranged in each assembly hole (110) on the base ring (1), and the two protrusions (220) are riveted together by means of a rivet block (5), each protrusion (220) is formed by a concave groove (210) distributed on the buffer ring pad (2), a spring (4) is arranged between the two protrusions (220) in the same assembly hole (110), the groove (210) is assembled with a corresponding block (310) located on one side of the contact action ring (3), the base ring (1) and the buffer ring pads (2) and the contact action ring (3) located on both sides of the base ring (1) from the inside to the outside are combined to form a complete metal elliptical ring pad, and the buffer ring pad (2) is assembled between the base ring (1) and the contact action ring (3).

2. The combined durable metal oval ring gasket according to claim 1, characterized in that: The base ring (1) and the contact action ring (3) are both made of stainless steel metal material.

3. The combined durable metal oval ring gasket according to claim 1, characterized in that: The buffer ring gasket (2) is made of a high temperature resistant and corrosion resistant rubber material.

4. The combined durable metal oval ring gasket according to claim 1, characterized in that: A positioning groove (240) is provided in the middle of the surface of the protruding block (220), and the inner wall of the positioning groove (240) is in contact with one end of the spring (4).

5. The combined durable metal oval ring gasket according to claim 1, characterized in that: The shaped protrusion (220) is processed into a hard structure, and the cross-sectional specifications and shapes of the shaped protrusion (220) are consistent with those of the assembly hole (110).

6. The combined durable metal oval ring gasket according to claim 1, characterized in that: Two riveting holes (230) are provided in the molded groove (210), and the inner walls of the riveting holes (230) are in contact with corresponding parts of the riveting block (5).

7. The combined durable metal oval ring gasket according to claim 1, characterized in that: The two side surfaces of the buffer ring pad (2) are in close contact with the surface of the base ring (1) and the surface of the contact action ring (3), respectively.

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