CN214946344U

CN214946344U - Metal tooth-shaped gasket

Info

Publication number: CN214946344U
Application number: CN202121397708.7U
Authority: CN
Inventors: 徐丹丹; 武跃维
Original assignee: NINGBO IDT SINYUAN SEALING TECHNOLOGY CO LTD
Current assignee: NINGBO IDT SINYUAN SEALING TECHNOLOGY CO LTD
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-11-30
Anticipated expiration: 2031-06-23

Abstract

The utility model discloses a metal tooth-shaped gasket, including the gasket body that is the annular structure, the center of gasket body be provided with the through-hole, the ring width of gasket body be less than or equal to 5mm, the both sides of gasket body be provided with a pair of bulge loop respectively, the bulge loop between be formed with the cavity, the top of bulge loop be provided with the support plane, the outside of bulge loop be fixed with the graphite annulus. The utility model has the advantages that: simple structure, reasonable, it sets up a pair of bulge loop respectively through the both sides at the gasket body to at the fixed graphite ring in the outside of bulge loop, set up the support plane at the top of bulge loop, can guarantee the fixed reliability of graphite ring and bulge loop, be formed with the cavity between the bulge loop, the air in the cavity can form the support to the graphite ring, thereby improves metal tooth form gasket's leakproofness.

Description

Metal tooth-shaped gasket

Technical Field

The utility model belongs to the technical field of the gasket manufacturing technology and specifically relates to a metal profile of tooth gasket.

Background

The gasket is widely applied to mechanical equipment, and because the machined surface cannot be perfect, the gasket can be used for filling up irregularities and also has a sealing effect. The gasket sealing is realized by applying pressure to the flange sealing surface under the action of the pre-tightening load of the bolt to promote the gasket between the two flange surfaces to generate elastic deformation or plastic deformation, so that the surface of the gasket can be filled with the uneven microgeometric gap on the flange surface, and further the sealing of the flange surface is realized. The tooth-shaped gasket is one kind of gasket, the tooth-shaped gasket is a metal soft gasket, the sealing effect is superior to that of a metal flat gasket, concentric 90-degree included angle waveform sawtooth-shaped grooves are processed on two surfaces of the metal stainless steel flat gasket by a precision lathe generally, flexible graphite, PTFE (Polytetrafluoroethylene), asbestos-free plates or other soft metals can be selected according to different media and are adhered to two surfaces of the gasket, and the labyrinth sealing effect is achieved by utilizing the sealing performance of a soft covering layer and the advantages of good strength and elasticity of the metals, so that the same sealing effect is achieved, and the gasket pressing force is small.

The existing tooth-shaped gasket structure is disclosed in patent applications with application numbers CN201020591223.7 and CN201310191292.7, wherein tooth-shaped rings are arranged on metal rings, graphite paper is arranged on the surfaces of the tooth-shaped rings, but the width of the sealing ring is required, and when the sealing area is too small (the sealing width is less than or equal to 5mm), only 2-3 circles of concentric circles cannot play a sealing role, so the structure of the tooth-shaped gasket structure needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at making up for the above-mentioned not enough, to the social public simple structure reasonable, the leakproofness is good, is applicable to a metal profile of tooth gasket that sealed width is less than or equal to 5 mm.

The technical scheme of the utility model is realized like this:

the utility model provides a metal profile of tooth gasket, is including the gasket body that is cyclic annular structure, the center of gasket body be provided with the through-hole, the ring width of gasket body be less than or equal to 5mm, the both sides of gasket body be provided with a pair of bulge loop respectively, the bulge loop between be formed with the cavity, the top of bulge loop be provided with support plane, the outside of bulge loop be fixed with the graphite ring.

The measures for further optimizing the technical scheme are as follows:

the section of the convex ring is in a trapezoidal structure.

The graphite ring is fixedly adhered to the convex ring.

The gasket body is of a rectangular structure.

The gasket body is provided with extension parts at four corners of the periphery.

The gasket body is of a circular structure.

The periphery of the gasket body is provided with an extension part.

Compared with the prior art, the utility model the advantage be:

the utility model discloses a metal tooth-shaped gasket, simple structure, rationally, it sets up a pair of bulge loop respectively through the both sides at the gasket body to at the fixed graphite ring in the outside of bulge loop, set up the supporting plane at the top of bulge loop, can guarantee the fixed reliability of graphite ring and bulge loop, be formed with the cavity between the bulge loop, the air in the cavity can form the support to the graphite ring, thereby improve metal tooth-shaped gasket's leakproofness, be applicable to the metal tooth-shaped gasket that the ring width is less than or equal to 5 mm.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a cross-sectional structural view of a first embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural diagram of a second embodiment of the present invention.

The utility model discloses each reference numeral's name is in the drawing:

the gasket comprises a gasket body 1, a through hole 1a, a concave cavity 1b, a convex ring 11, a supporting plane 11a, an extension part 12 and a graphite ring 2.

Detailed Description

The present invention is described in further detail below with reference to the attached drawings:

in a first embodiment, as shown in fig. 1 to 3, a metal tooth-shaped gasket includes a gasket body 1 having an annular structure, a through hole 1a is formed in the center of the gasket body 1, the ring width of the gasket body 1 is less than or equal to 5mm, a pair of convex rings 11 are respectively disposed on two sides of the gasket body 1, a concave cavity 1b is formed between the convex rings 11, a supporting plane 11a is disposed at the top of each convex ring 11, and a graphite ring 2 is fixed on the outer side of each convex ring 11.

The section of the convex ring 11 is in a trapezoidal structure.

The graphite ring 2 is fixedly adhered to the convex ring 11.

The gasket body 1 is in a rectangular structure.

Four corners of the periphery of the gasket body 1 are provided with extension parts 12. The extension 12 is provided to facilitate handling and positioning of the gasket during installation.

The metal tooth-shaped gasket of the utility model has simple and reasonable structure, adopts the mode that a pair of convex rings 11 are respectively arranged at two sides of the gasket body 1, the graphite ring 2 is fixed at the outer side of the convex ring 11, and the supporting plane 11a is arranged at the top of the convex ring 11, so that the graphite ring 2 and the convex ring 11 can be more stably and reliably fixed; in addition, a concave cavity 1b is formed between the convex rings 11, when the graphite ring 2 is fixed with the convex rings 11, a closed space is formed in the concave cavity 1b, and air in the concave cavity 1b plays a supporting role for the graphite ring 2, so that the reliability and the sealing performance of the gasket can be improved. The metal tooth-shaped gasket structure is suitable for metal tooth-shaped gaskets with the ring width smaller than or equal to 5 mm.

In the second embodiment, as shown in fig. 4, the metal tooth-shaped gasket in the present embodiment has a similar structure to that in the first embodiment, except that the gasket body 1 in the present embodiment has a circular structure.

The periphery of the gasket body 1 is provided with an extension part 12. In this embodiment, the extension portion 12 is a ring structure, which facilitates processing.

The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.

Claims

1. The utility model provides a metal profile of tooth gasket, including gasket body (1) that is the loop configuration, the center of gasket body (1) be provided with through-hole (1a), characterized by: the gasket body (1) ring width be less than or equal to 5mm, the both sides of gasket body (1) be provided with a pair of bulge loop (11) respectively, bulge loop (11) between be formed with cavity (1b), the top of bulge loop (11) be provided with support plane (11a), the outside of bulge loop (11) be fixed with graphite ring (2).

2. The metal tooth gasket as set forth in claim 1, wherein: the section of the convex ring (11) is in a trapezoidal structure.

3. The metal tooth gasket as set forth in claim 2, wherein: the graphite ring (2) is fixedly adhered to the convex ring (11).

4. The metal tooth gasket as set forth in claim 3, wherein: the gasket body (1) is of a rectangular structure.

5. The metal tooth gasket as set forth in claim 4, wherein: the gasket is characterized in that extension parts (12) are arranged at four corners of the periphery of the gasket body (1).

6. The metal tooth gasket as set forth in claim 3, wherein: the gasket body (1) is of a circular structure.

7. The metal tooth gasket as set forth in claim 6, wherein: the periphery of the gasket body (1) is provided with an extension part (12).