CN217153402U

CN217153402U - Metal sealing gasket with inverted buckle structure

Info

Publication number: CN217153402U
Application number: CN202220120943.8U
Authority: CN
Inventors: 李洪政; 刘艳军
Original assignee: Qingdao East Asia Industry Co ltd
Current assignee: Qingdao East Asia Industry Co ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-08-09
Anticipated expiration: 2032-01-17

Abstract

The utility model provides a take metallic gasket of back-off structure relates to sealed technical field. The gasket comprises a gasket main body, wherein a plurality of inverted sheets are arranged on the peripheral edge of the gasket main body, each inverted sheet comprises a first bent part, a second bent part, a third bent part and a fourth bent part, the first bent part is connected with the peripheral edge of the gasket main body, the second bent part is vertically connected to the outer end of the first bent part, the bottom end of the third bent part is connected with the top end of the second bent part and inclines towards the center of the gasket main body, and the bottom end of the fourth bent part is connected with the top end of the third bent part and inclines away from the gasket main body; the first bending part, the second bending part and the third bending part form a clamping groove used for clamping the flange. The joint groove that forms between first kink, second kink and the third kink is direct will seal the joint of pad main part on the flange, improves the stability of flange and the sealed pad main part in the transportation, improves the equipment convenience simultaneously.

Description

Metal sealing gasket with inverted buckle structure

Technical Field

The utility model relates to a sealed technical field particularly, relates to a take metal sealing gasket of back-off structure.

Background

When the pipelines are connected, gaskets need to be installed at the joint flanges, the sealing performance of the pipeline connecting positions is guaranteed, and water leakage or air leakage of the pipelines is avoided.

Seal gasket and flange transport the destination together usually and assemble again among the prior art, in the transportation, in order to guarantee to assemble simultaneously between flange and the seal gasket, avoid the confusion, need fix flange and seal gasket through the bolt usually, arrive the back and dismantle and assemble, the operation is unusual loaded down with trivial details, has increased the equipment difficulty degree.

Therefore, in view of the deficiencies of the prior art, it is desirable to provide a metal gasket with a reverse structure that has a simple structure and solves the above-mentioned problems of the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take metallic gasket of back-off structure, it can be to the weak point among the prior art, proposes the solution, has simple structure, can direct joint on the flange, and the transportation is difficult for dropping, and characteristics such as convenient equipment.

The embodiment of the utility model is realized like this:

a metal sealing gasket with a reversing structure comprises a sealing gasket main body, wherein a plurality of reversing pieces are arranged on the peripheral side edge of the sealing gasket main body, each reversing piece comprises a first bending part, a second bending part, a third bending part and a fourth bending part, the first bending part is connected with the peripheral side edge of the sealing gasket main body, the second bending part is vertically connected to the outer end of the first bending part, the bottom end of the third bending part is connected with the top end of the second bending part and inclines towards the center of the sealing gasket main body, and the bottom end of the fourth bending part is connected with the top end of the third bending part and inclines away from the sealing gasket main body; the first bending part, the second bending part and the third bending part form a clamping groove for clamping the flange.

In some embodiments of the present invention, the second bent portion is perpendicular to the gasket main body.

In some embodiments of the present invention, an included angle between the third bent portion and the gasket main body is 38 ° to 42 °.

In some embodiments of the present invention, an included angle between the fourth bent portion and the gasket main body is 34 ° to 38 °.

In some embodiments of the present invention, the first bending portion, the second bending portion, and the third bending portion are adapted to a thickness of the flange at a vertical distance between the sealing gasket main body and the sealing gasket main body.

In some embodiments of the present invention, the first bending portion, the second bending portion, the third bending portion and the fourth bending portion are connected by a circular arc.

In some embodiments of the present invention, the gasket main body is composed of an upper metal plate, a lower metal plate, and an asbestos layer included between the upper metal plate and the lower metal plate.

In some embodiments of the present invention, the middle portion of the sealing gasket main body is provided with an annular oil hole.

In some embodiments of the present invention, the edge of the annular oil hole is provided with a sealing rib.

In some embodiments of the present invention, two lugs are respectively disposed at two opposite ends of the sealing gasket main body, and the lugs are provided with through holes.

Compared with the prior art, the embodiment of the utility model has following advantage or beneficial effect at least:

the utility model has simple structure, can be directly clamped on the flange, is not easy to fall off in the transportation process, and is convenient to assemble; through the sealing gasket main body, a plurality of inverted buckle pieces are arranged on the peripheral side edge of the sealing gasket main body, each inverted buckle piece comprises a first bent part, a second bent part, a third bent part and a fourth bent part, the first bent part is connected with the peripheral side edge of the sealing gasket main body, the second bent part is vertically connected to the outer end of the first bent part, the bottom end of the third bent part is connected with the top end of the second bent part and inclines towards the center of the sealing gasket main body, and the bottom end of the fourth bent part is connected with the top end of the third bent part and inclines away from the sealing gasket main body; the first bending part, the second bending part and the third bending part form a clamping groove for clamping the flange. The utility model discloses a first kink the second kink with the joint groove that forms between the third kink directly will sealed pad main part joint improves the stability of flange and sealed pad main part in the transportation on the flange, simultaneously, adopts the form easy to assemble and the dismantlement of joint, can improve the equipment convenience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a top view of a metal gasket with an inverted structure according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the side B-B of the back-off plate in the embodiment of the present invention;

fig. 3 is a cross-sectional view of a gasket main body according to an embodiment of the present invention.

Reference numerals: 1. a gasket body; 2. a back-off plate; 3. a first bent portion; 4. a second bent portion; 5. a third bent portion; 6. a fourth bent portion; 7. an upper metal plate; 8. a lower metal plate; 9. an asbestos layer; 10. an annular oil hole; 11. sealing the ribs; 12. a lug; 13. and a through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description of the present invention and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and therefore, the present invention should not be construed as being limited thereto. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

Referring to fig. 1 to fig. 3, fig. 1 is a top view of a metal gasket with an inverted structure according to an embodiment of the present invention; FIG. 2 is a cross-sectional view of an embodiment of the invention; FIG. 3 is a cross-sectional view of a gasket body in an embodiment of the invention;

in the embodiment of the application, a take metal gasket of back-off structure specifically includes: a gasket main body 1, wherein a plurality of reverse-buckling pieces 2 are arranged on the peripheral side edge of the gasket main body 1, each reverse-buckling piece 2 comprises a first bent portion 3, a second bent portion 4, a third bent portion 5 and a fourth bent portion 6, the first bent portion 3 is connected with the peripheral side edge of the gasket main body 1, the second bent portion 4 is vertically connected with the outer end of the first bent portion 3, the bottom end of the third bent portion 5 is connected with the top end of the second bent portion 4 and inclines towards the center of the gasket main body 1, and the bottom end of the fourth bent portion 6 is connected with the top end of the third bent portion 5 and inclines away from the gasket main body 1; the first bending portion 3, the second bending portion 4 and the third bending portion 5 form a clamping groove for clamping a flange.

The utility model has simple structure, can be directly clamped on the flange, is not easy to fall off in the transportation process, and is convenient to assemble; through the gasket main body 1, a plurality of inverted buckle pieces 2 are arranged on the peripheral side edge of the gasket main body 1, each inverted buckle piece 2 comprises a first bent part 3, a second bent part 4, a third bent part 5 and a fourth bent part 6, the first bent part 3 is connected with the peripheral side edge of the gasket main body 1, the second bent part 4 is vertically connected with the outer end of the first bent part 3, the bottom end of the third bent part 5 is connected with the top end of the second bent part 4 and inclines towards the center of the gasket main body 1, and the bottom end of the fourth bent part 6 is connected with the top end of the third bent part 5 and inclines away from the gasket main body 1; the first bending portion 3, the second bending portion 4 and the third bending portion 5 form a clamping groove for clamping a flange. During the installation, third kink 5 and sealed pad main part 1 respectively with two upper and lower terminal surface butts of flange to make the flange card establish the third buckle and seal between the pad main part 1, the utility model discloses a joint groove that forms between above-mentioned first kink 3, above-mentioned second kink 4 and above-mentioned third kink 5 is direct with the sealed pad main part 1 joint of above-mentioned on the flange, improves the stability of flange and sealed pad main part 1 in the transportation, simultaneously, adopts the form easy to assemble and the dismantlement of joint, can improve the equipment convenience.

Next, a metal gasket with an inverted structure in the present exemplary embodiment will be further described.

In an embodiment of this embodiment, a metal gasket with a reverse buckling structure includes a gasket main body 1, where the gasket main body 1 is substantially diamond-shaped, four corners of the diamond-shaped are smoothly transitioned through rounded corners, and the shape of the diamond-shaped is substantially the same as the shape of a flange, an annular oil hole 10 is formed in the gasket main body 1, and specifically, a center of the annular oil hole 10 is located at an intersection point of two diagonal lines of the gasket main body 1.

Furthermore, two lugs 12 are arranged along the direction of the long axis of the sealing gasket main body 1, through holes 13 are respectively formed in the two lugs 12, the two through holes 13 are respectively located on two sides of the annular oil hole 10, and the two through holes 13 are respectively connected to the components through connecting bolts.

In one embodiment of this embodiment, the edge of the annular oil hole 10 is provided with a seal rib 11.

The sealing rib 11 is an annular protrusion and has resilience, and when the gasket body 1 is subjected to external pressure, the protruding sealing rib 11 rebounds to form a seal, thereby ensuring that the gasket body 1 has good sealing performance.

In one embodiment of this embodiment, the gasket body 1 is a ring formed by rolling an upper metal plate 7, a lower metal plate 8, and an asbestos layer 9 enclosed between the upper metal plate 7 and the lower metal plate 8.

It should be noted that the upper and lower metal plates make the gasket main body 1 have higher strength, and the middle is provided with the asbestos layer 9, so that the resilience and the corrosion resistance are improved, and therefore, the gasket has high temperature resistance, strong corrosion resistance and better sealing performance.

In one embodiment of this embodiment, the peripheral side edge of the gasket main body 1 is provided with a plurality of inverted buckle pieces 2, wherein the number of the inverted buckle pieces 2 is preferably four, and four inverted buckle pieces 2 are respectively and uniformly distributed on the peripheral side of the annular oil hole 10 and are connected to form an annular clamping groove adapted to the flange; the back-off piece 2 comprises a first bending part 3, a second bending part 4, a third bending part 5 and a fourth bending part 6, the first bending part 3 is connected with the peripheral edge of the sealing gasket main body 1, in the embodiment of the application, the welding mode is adopted for fixed connection, the connection stability of the sealing gasket main body 1 and the back-off piece 2 is improved, and the back-off piece is not easy to break; the second bent portion 4 is vertically connected to the outer end of the first bent portion 3, specifically, the second bent portion 4 is perpendicular to the gasket main body 1, and the bottom end of the third bent portion 5 is connected to the top end of the second bent portion 4 and is inclined toward the center of the gasket main body 1, that is, the distance between the third bent portion 5 and the axis of the annular oil hole 10 gradually decreases; the bottom end of the fourth bent portion 6 is connected to the top end of the third bent portion 5, and is inclined away from the gasket main body 1, that is, the distance between the fourth bent portion 6 and the axis of the annular oil hole 10 is gradually increased; the first bending portion 3, the second bending portion 4 and the third bending portion 5 form a clamping groove for clamping a flange.

In a specific embodiment, during the installation, the lower terminal surface of flange and the up end butt of sealed pad main part 1, the side end face and the laminating of second kink 4 of flange, the up end face side edge and the 5 butt of third kink of flange, including the flange joint is by third kink 5, flange fixing need not to adopt bolt fastening, makes the flange be difficult for dropping in the transportation, avoids connecting loaded down with trivial details, owing to adopt the mode of joint, the dismantlement equipment is convenient simultaneously, has improved the equipment convenience.

In one embodiment of this embodiment, an angle α between the third bent portion 5 and the gasket main body 1 is 38 ° to 42 °, and preferably 40 °.

It should be noted that, because the flange has a certain error during manufacturing or a certain numerical value within a specified tolerance range, the sizes of different flanges are slightly different, and the third bent portion 5 is arranged in an inclined shape, so that even if there is a difference between the size of the flange and the standard size, the third bent portion 5 can be abutted against the peripheral surface of the flange, thereby preventing the relative displacement between the flange and the seal gasket body during use from affecting the sealing performance of the oil pipe seal gasket.

In one embodiment of this embodiment, an included angle β between the fourth bent portion 6 and the gasket main body 1 is 34 ° to 38 °, and preferably 36 °.

The fourth bending portion 6 is fixedly connected to an end of the third bending portion 5 away from the first bending portion 3. The distance between the fourth bent portion 6 and the axis of the annular oil hole 10 gradually increases in the direction gradually away from the gasket main body 1, that is, the fourth bent portion 6 gradually inclines in the direction away from the surface of the gasket main body 1 in the direction gradually away from the gasket main body 1. During the installation, the flange at first contacts with fourth kink 6, because the slope of fourth kink 6 sets up, the flange has the trend that is close to gradually with sealed main part 1, this trend makes back-off piece 2 produce elastic deformation, four back-off piece 2's distance increase, the flange successfully with sealed main part 1 contact back, back-off piece 2 resumes primary position under the effect of self elastic force, the flange is blocked to be established between third kink 5 and sealed main part 1, firm being connected with other seal gaskets, high durability and convenient installation, and is swift. The angle β between the fourth bent portion 6 and the gasket main body 1 is 34 ° to 38 °, preferably 36 °.

In one embodiment of this embodiment, the vertical distance between the first bent portion 3, the second bent portion 4, and the third bent portion 5 and the gasket main body 1 is adapted to the thickness of the flange.

In the embodiment of the present application, the distance between the second bent portion 4 and the gasket main body 1 is set to 4mm according to the thickness of the flange. It can be understood that, in other embodiments, the distance between the second bending portion 4 and the gasket body may also be specifically set according to the requirement of the user.

In an embodiment of the present invention, the first bent portion 3, the second bent portion 4, the third bent portion 5, and the fourth bent portion 6 are all connected by an arc, and the arc is smooth and is not easily broken.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The metal sealing gasket with the inverted buckle structure is characterized by comprising a sealing gasket main body, wherein a plurality of inverted buckle pieces are arranged on the peripheral side edge of the sealing gasket main body, each inverted buckle piece comprises a first bent part, a second bent part, a third bent part and a fourth bent part, the first bent part is connected with the peripheral side edge of the sealing gasket main body, the second bent part is vertically connected to the outer end of the first bent part, the bottom end of the third bent part is connected with the top end of the second bent part and inclines towards the center of the sealing gasket main body, the included angle between the third bent part and the sealing gasket main body is 38-42 degrees, and the bottom end of the fourth bent part is connected with the top end of the third bent part and deviates from the inclination of the sealing gasket main body; the first bending part, the second bending part and the third bending part form a clamping groove for clamping a flange; the second bent part is perpendicular to the sealing gasket main body; the gasket main body is composed of an upper metal plate, a lower metal plate and an asbestos layer enclosed between the upper metal plate and the lower metal plate.

2. The metal gasket with an inverted structure according to claim 1, wherein an angle between the fourth bent portion and the gasket main body is 34 ° to 38 °.

3. The metal gasket with an inverted structure according to claim 1, wherein the vertical distance between the first bent portion, the second bent portion, and the third bent portion and the gasket main body is adapted to the thickness of the flange.

4. The metal gasket with an inverted structure as set forth in claim 1, wherein said first bent portion, said second bent portion, said third bent portion and said fourth bent portion are connected by an arc.

5. The metal gasket with an undercut structure according to claim 1, wherein an annular oil hole is formed in a middle portion of the gasket main body.

6. The metal gasket with an inverted structure according to claim 5, wherein an edge of the annular oil hole is provided with a seal rib.

7. The metal gasket with the inverted buckle structure as claimed in claim 1, wherein two lugs are respectively disposed at opposite ends of the gasket body, and the lugs are provided with through holes.