A cylindrical wound gasket

Abstract

The application provides a cylindrical winding gasket, which comprises a main body in a cylindrical shape, metal rings or metal bands distributed on the main body, and non-metal materials filled between the gaps of the metal rings or metal bands on the main body. The cylindrical winding gasket provided by the application has simple structure and good sealing effect, and is especially suitable for use in extreme environments or in the case that the sealing environment is relatively small. The application solves the sealing problem in the case that the width of the sealing member is required to be small.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of sealing of mechanical equipment, and particularly relates to a cylindrical winding gasket. BACKGROUND

[0002] There are many places in mechanical equipment that need to be sealed, such as the joint between two flanges which needs to be sealed by a gasket. Some equipment needs a relatively wide gasket, and such a gasket is often good in sealing effect due to the relatively large sealing width. However, in some equipment, there are some places with very small width that need a gasket with a relatively small sealing width. However, due to the manufacturing process or the problems in the structure design itself and the relatively small sealing width, the sealing effect of such gaskets on the market is not very ideal, and in severe cases, leakage may occur. SUMMARY

[0003] In order to solve the above problems, the present application provides a cylindrical winding gasket, which comprises a main body, the main body is in a cylindrical shape, and metal rings or metal bands are distributed on the main body, and non-metallic materials are filled between the gaps of the metal rings or metal bands on the main body.

[0004] According to an embodiment of the present application, the metal rings or metal bands are steel rings or steel bands.

[0005] According to an embodiment of the present application, the non-metallic material filled between the gaps of the steel rings or steel bands is tetrafluoroethylene or other non-metallic material.

[0006] According to an embodiment of the present application, the steel rings or steel bands are uniformly distributed on the main body.

[0007] According to an embodiment of the present application, the steel rings or steel bands are elastic metal rings or elastic metal bands, and the elastic metal bands are distributed on one end and / or both ends of the main body.

[0008] According to an embodiment of the present application, the elastic metal rings or elastic metal bands are provided with at least one metal bend.

[0009] According to an embodiment of the present application, the metal bend comprises a first bend and a second bend.

[0010] According to an embodiment of the present application, one end of the first bend and one end of the second bend are connected, and the first bend and the second bend form a preset angle.

[0011] According to an embodiment of the present application, the angle between the first bend and the second bend is greater than 90 degrees and less than 180 degrees.

[0012] According to one embodiment of this application, the body has a first sealing surface and a second sealing surface, both of which are cylindrical sealing surfaces.

[0013] The cylindrical spiral wound gasket provided in this application has a simple structure and good sealing effect, making it particularly suitable for extreme environments or situations where the sealing space is relatively small. This application solves the sealing problem when the width of the sealing element is required to be small. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a cylindrical spiral wound gasket provided in an embodiment of the present invention. Detailed Implementation

[0015] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0016] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0017] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0018] like Figure 1 The diagram illustrates the structure of a cylindrical wound gasket. This cylindrical wound gasket includes a main body 1, which is cylindrical. However, this cylindrical shape is not the only embodiment protected in this application; the main body 1 can be cylindrical, cuboid, or any other shape. As a preferred embodiment, the main body 1 in this application is cylindrical.

[0019] The cylindrical winding gasket has at least two sealing surfaces, in this application, the main body 1 has a first sealing surface 101 and a second sealing surface 102, the first sealing surface 101 and the second sealing surface 102 are opposite to each other.

[0020] Further, the first sealing surface 101 of the main body 1 is a cylindrical sealing surface, when the cylindrical winding gasket is placed in a sealing environment, the cylindrical first sealing surface 101 of the main body 1 and the sealing environment form a larger sealing area, so that the sealing effect is good.

[0021] The second sealing surface 102 of the main body 1 is also a cylindrical sealing surface, when the cylindrical winding gasket is placed in a sealing environment, the cylindrical second sealing surface 102 of the main body 1 and the sealing environment form a larger sealing area, so that the sealing effect is good.

[0022] Of course, the embodiment of the main body 1 is cylindrical here, if the main body 1 is a cuboid, then the first sealing surface 101 and the second sealing surface 102 of the main body 1 are rectangular sealing surfaces.

[0023] The metal rings or metal bands made of metal material are stacked on the main body 1 or wound on the main body 1, and the metal rings or metal bands are uniformly or non-uniformly distributed on the main body 1.

[0024] Further, the metal rings or metal bands distributed on the main body 1 are steel rings or steel bands.

[0025] Further, the steel rings are stacked on the main body 1 or the steel bands are wound on the main body 1 in the shape of a same radius and coaxial spiral arrangement.

[0026] In order to make the sealing effect better, especially in the case that the cylindrical winding gasket is extruded by the sealing environment, if there is only a steel ring or a steel band on the cylindrical winding gasket, the steel ring or the steel band is easy to be crushed. Therefore, in order to solve this technical problem, a non-metal material is filled between the gaps of the steel rings or the steel bands, so that in a harsh sealing environment, when the steel rings or the steel bands are extruded, the non-metal material between the steel rings or the steel bands will fill the gaps, so that the sealing effect is better.

[0027] Further, the non-metal material filled between the steel rings or the steel bands is tetrafluoroethylene or other non-metal.

[0028] The cylindrical winding gasket also includes an elastic metal ring or an elastic metal band 11, and the elastic metal ring or the elastic metal band 11 is distributed at one end and / or both ends of the main body 1.

[0029] Further, the elastic metal ring or elastic metal band 11 is stacked or wound along the axial direction of the main body 1 at one end and / or both ends of the main body 1.

[0030] The elastic metal band 11 is provided with at least one metal bend 12, which is also wound on the elastic metal band 11.

[0031] The metal bend 12 comprises a first bend 121 and a second bend 122, which are connected together by a terminal end, and the first bend 121 and the second bend 122 form a preset included angle.

[0032] Further, in order to achieve better sealing effect, the included angle between the first bend 121 and the second bend 122 ranges from greater than 90 degrees to less than 180 degrees.

[0033] The cylindrical wound gasket provided by the present application has simple structure and good sealing effect, and is especially suitable for use in extreme environment or small sealing environment. The present application solves the sealing problem in the case of requiring small width of the sealing member.

[0034] The above application of specific examples is used to illustrate the present application, which is only used to help understand the present application, and does not limit the present application. For those skilled in the art to which the present application belongs, according to the idea of the present application, a number of simple deductions, deformations or substitutions can be made.

Claims

1. A cylindrical wound gasket, characterized by, It includes a main body, the main body is cylindrical shape, the main body is distributed with metal ring or metal band, the gap between the metal ring or metal band of the main body is filled with non-metallic material; The metal ring or metal band is a steel ring or a steel band, and the non-metallic material filled between the steel ring or the steel band is tetrafluoroethylene; The steel ring or the steel band is an elastic metal ring or an elastic metal band, the elastic metal band is distributed at one end and / or both ends of the main body, and the elastic metal ring or the elastic metal band is stacked at one end and / or both ends of the main body along the axial direction of the main body; The elastic metal ring or the elastic metal band is distributed with at least one metal bend, and the metal bend is also wound on the elastic metal band; The metal bend includes a first bend and a second bend, one end of the first bend is connected with one end of the second bend, and a preset angle is formed between the first bend and the second bend, and the angle between the first bend and the second bend is greater than 90 degrees and less than 180 degrees.

2. A cylindrical wound gasket according to claim 1, wherein The steel ring or the steel band is uniformly distributed on the main body.

3. The cylindrical wound gasket of any one of claims 1-2, wherein, The main body has a first sealing surface and a second sealing surface, and the first sealing surface and the second sealing surface are both cylindrical sealing surfaces.

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