CN210830440U

CN210830440U - Sealing gasket with tetrafluoro inner ring

Info

Publication number: CN210830440U
Application number: CN201921483983.3U
Authority: CN
Inventors: 姜庚申
Original assignee: Ningbo Rilson Sealing Material Co ltd
Current assignee: Ningbo Rilson Sealing Material Co ltd
Priority date: 2019-09-08
Filing date: 2019-09-08
Publication date: 2020-06-23
Anticipated expiration: 2029-09-08

Abstract

The utility model discloses a sealing gasket with a tetrafluoro inner ring, which comprises a gasket body clamped between an upper flange and a lower flange, wherein the gasket body comprises an outer tooth core and an inner ring, the inner ring is made of tetrafluoro material, and the upper surface and the lower surface of the tooth core are both provided with a layer of graphite layer; the outer sides of the upper flange and the lower flange extend outwards to form a locking part, the locking part is provided with a locking hole which is communicated up and down, a locking screw rod penetrates through the locking hole, and two ends of the locking screw rod are connected with locking nuts in a threaded manner; the utility model has the advantages that: the practicality, low in production cost, novel structure has good corrosion resistance, under having the corrosivity operating mode, and it is difficult for receiving the corruption influence, has higher self-cleaning ability, and impurity is difficult for being infected with on it, can effectively improve sealed effect, and is applicable in the operating mode of multiple complicacy.

Description

Sealing gasket with tetrafluoro inner ring

Technical Field

The utility model relates to a seal gasket, in particular to take seal gasket of tetrafluoro inner ring.

Background

At present, under the four harsh requirements of service life, temperature resistance, corrosion resistance and no impurity adhesion, common graphite gaskets and metal gaskets belong to hard gaskets, are easily affected by acid and alkali and easily adhere to impurities, and are difficult to meet the use requirements of the 4 conditions. Particularly, the gasket is resistant to temperature, good elongation and corrosion resistance are difficult to maintain at-200 to 260 ℃, the gasket is easy to be contaminated by impurities after being corroded, the sealing performance is influenced, and the service life is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art not enough, provide a take seal gasket of tetrafluoro inner ring.

In order to achieve the above object, the present invention takes the following measures:

a sealing gasket with a tetrafluoro inner ring comprises a gasket body clamped between an upper flange and a lower flange, wherein the gasket body comprises an outer tooth core and an inner ring, the inner ring is made of tetrafluoro material, and the upper surface and the lower surface of the tooth core are both provided with a graphite layer;

the outer sides of the upper flange and the lower flange extend outwards to form a locking part, the locking part is provided with a locking hole which is communicated up and down, a locking screw rod penetrates through the locking hole, and two ends of the locking screw rod are connected with locking nuts in a threaded manner;

the inner ring is sleeved in the tooth core, an inward-concave V-shaped groove is formed in the outer side of the inner ring along the circumferential direction, and a V-shaped bulge sunk into the V-shaped groove is formed in the inner side of the tooth core along the circumferential direction;

the upper surface and the lower surface of the tooth core are both provided with a plurality of tooth sockets which are concentrically arranged with the tooth core, and the tooth surfaces of the tooth core are formed by the plurality of tooth sockets.

The utility model has the advantages that: the practicality, low in production cost, novel structure has good corrosion resistance, under having the corrosivity operating mode, and it is difficult for receiving the corruption influence, has higher self-cleaning ability, and impurity is difficult for being infected with on it, can effectively improve sealed effect, and is applicable in the operating mode of multiple complicacy.

Drawings

Fig. 1 is a schematic view of the cross-sectional plane structure of the present invention.

Detailed Description

The utility model provides a take seal gasket of tetrafluoro inner ring, includes the centre gripping at the gasket body between last flange 1 and lower flange 2, the gasket body include tooth core 3 in the outside and inboard inner ring 4, inner ring 4 is made with the tetrafluoro material, tooth core 3's upper and lower two sides all are provided with one deck graphite layer 5.

The outer sides of the upper flange 1 and the lower flange 2 extend outwards to form a locking part 1-2, the locking part 1-2 is provided with a locking hole which is communicated up and down, a locking screw 6 penetrates through the locking hole, and two ends of the locking screw 6 are in threaded connection with locking nuts 7.

The inner ring 4 is sleeved in the tooth core 3, an inward-concave V-shaped groove is formed in the outer side of the inner ring 4 along the circumferential direction, and a V-shaped protrusion sunk into the V-shaped groove is arranged on the inner side of the tooth core 3 along the circumferential direction.

The upper surface and the lower surface of the tooth core 3 are both provided with a plurality of tooth sockets which are concentrically arranged with the tooth core 3, and the tooth surfaces of the tooth core 3 are formed by the plurality of tooth sockets.

Through increasing the gasket body of taking inner ring 4, inner ring 4 is made with the tetrafluoro material, can prevent the pine of gasket body and take off, the tetrafluoro has fabulous self-cleaning ability, impurity can not attach to go, the gasket body if there is impurity to attach to, can cause the corruption, the condition such as wearing and tearing, inner ring 4 that the tetrafluoro was made is acid-resistant, basicity, long service life, it is fine coarse also to go up flange 1 and lower flange 2 surface itself, defects such as sunken, the gasket body is put into in the flange (go up between flange 1 and the lower flange 2), behind the 6 pretension of locking screw (rotate lock nut 7), through the extrusion gasket body, make the gasket body will all laminate with the contact surface of flange, sealing efficiency is improved.

The gasket body is under high temperature, low temperature, area corrosivity and organic solution operating mode, and life-span and sealing performance of using obtain effectual improvement, reduce the risk of leaking.

Claims

1. The utility model provides a take seal gasket of tetrafluoro inner ring, includes the centre gripping at last flange (1) and the gasket body between lower flange (2), its characterized in that: the gasket body comprises a tooth core (3) on the outer side and an inner ring (4) on the inner side, the inner ring (4) is made of a tetrafluoro material, and a graphite layer (5) is arranged on each of the upper surface and the lower surface of the tooth core (3).

2. The sealing gasket with the tetrafluoro inner ring according to claim 1, characterized in that: the outer sides of the upper flange (1) and the lower flange (2) extend outwards to form a locking part (1-2), a locking hole which is communicated up and down is formed in the locking part (1-2), a locking screw rod (6) penetrates through the locking hole, and two ends of the locking screw rod (6) are connected with locking nuts (7) in a threaded mode.

3. The gasket seal with tetrafluoro inner ring according to claim 1 or 2, characterized in that: the inner ring (4) is sleeved in the tooth core (3), an inward concave V-shaped groove is formed in the outer side of the inner ring (4) along the circumferential direction, and a V-shaped protrusion sunk into the V-shaped groove is arranged on the inner side of the tooth core (3) along the circumferential direction.

4. The gasket seal with tetrafluoro inner ring of claim 3, characterized in that: the upper surface and the lower surface of the tooth core (3) are both provided with a plurality of tooth sockets which are concentrically arranged with the tooth core (3), and the tooth surfaces of the tooth core (3) are formed by the tooth sockets.