CN213899844U

CN213899844U - O-shaped sealing ring with polytetrafluoroethylene coating film

Info

Publication number: CN213899844U
Application number: CN202022649263.9U
Authority: CN
Inventors: 丁子威
Original assignee: Boiling Point Sealing Technology Jiangsu Co ltd
Current assignee: Boiling Point Sealing Technology Jiangsu Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-08-06
Anticipated expiration: 2030-11-17

Abstract

The utility model discloses a have O type sealing washer that polytetrafluoroethylene filmed, including the sealing washer main part, it has from the type membrane to bond on the inner wall of sealing washer main part, and the cover is established and the first polytetrafluoroethylene membrane of fixedly connected with on the circumference outer wall of sealing washer main part, has seted up first draw-in groove between the inside and outside wall of sealing washer main part, and first draw-in groove is the loop configuration, and the second draw-in groove has been seted up to the upper end of sealing washer main part, and the second draw-in groove is the loop configuration, and second draw-in groove and first draw-in groove communicate with each other, the utility model discloses the beneficial effect who reaches is: the utility model relates to a combination formula has O type sealing washer of polytetrafluoroethylene film, the utility model discloses an install additional strengthening in the sealing washer main part, utilize the first snap ring, second snap ring and the flexure strip of additional strengthening to prop up the sealing washer during use, fix the sealing washer on the part, work as the utility model discloses a when sealed effect weakens, change a new additional strengthening can, need not whole change, reach material saving's purpose.

Description

O-shaped sealing ring with polytetrafluoroethylene coating film

Technical Field

The utility model relates to a O type sealing washer, in particular to have O type sealing washer that polytetrafluoroethylene filmed belongs to sealing washer technical field.

Background

The O-shaped rubber seal ring is widely used for sealing internal combustion locomotives, automobiles, tractors, engineering machinery, machine tools, various hydraulic and pneumatic elements and the like, can bear the sealing of fixed, reciprocating and rotating motion, and is usually provided with a polytetrafluoroethylene coating film for enhancing the wear resistance.

At present, the sealing ring with a polytetrafluoroethylene coating film is mostly integrated, the elasticity of the sealing ring can be weakened gradually in the use process, so that the sealing property of the sealing ring is weakened gradually, and workers are mostly integrally replaced when the sealing ring is replaced, so that materials are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model provides an O type sealing washer that has polytetrafluoroethylene to film, the effectual problem that exists of having solved among the prior art.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a there is O type sealing washer that polytetrafluoroethylene filmed, including the sealing washer main part, it has from the type membrane to bond on the inner wall of sealing washer main part, the cover is established and the first polytetrafluoroethylene membrane of fixedly connected with on the circumference outer wall of sealing washer main part, first draw-in groove has been seted up between the inside and outside wall of sealing washer main part, first draw-in groove is the loop configuration, the second draw-in groove has been seted up to the upper end of sealing washer main part, the second draw-in groove is the loop configuration, second draw-in groove and first draw-in groove communicate with each other, the diameter of the first draw-in groove of diameter ratio of second draw-in groove is big, install reinforcing mechanism jointly between second draw-in groove and the first draw-in groove.

As a preferred technical scheme of the utility model, strengthen the mechanism and include first snap ring, first snap ring and second draw-in groove phase-match and joint are in the inside of second draw-in groove, the lower extreme fixedly connected with second snap ring of first snap ring, second snap ring and first draw-in groove phase-match and joint are in the inside of first draw-in groove, the third draw-in groove has been seted up to the lower extreme of second snap ring, a plurality of flexure strips of inside fixedly connected with of third draw-in groove, the first sealing ring of upper end fixedly connected with of first snap ring.

As an optimal technical scheme of the utility model, it is a plurality of the flexure strip all is the V-arrangement structure, and is a plurality of the flexure strip all inlays completely in the inside of third draw-in groove, and adjacent two distance between the flexure strip is the same all.

As an optimal technical scheme of the utility model, the internal diameter of first sealing ring is the same with the internal diameter from the type membrane, it is outside that first sealing ring is located the upper end of sealing washer main part, fixedly connected with second polytetrafluoroethylene membrane on the circumference outer wall of first sealing ring.

As a preferred technical scheme of the utility model, distance between the lower extreme on the first snap ring upper and lower extreme and the second draw-in groove between the lower extreme is the same, distance between the lower extreme on the second snap ring upper and lower extreme and the first draw-in groove between the lower extreme are the same.

As an optimal technical scheme of the utility model, the lower extreme fixedly connected with second sealing ring of sealing washer main part, the cover is established and fixedly connected with third polytetrafluoroethylene membrane on the circumference outer wall of second sealing ring, the internal diameter of second sealing ring is the same with the internal diameter from the type membrane.

The utility model discloses the beneficial effect who reaches is: the utility model relates to a combination formula has O type sealing washer of polytetrafluoroethylene film, the utility model discloses an install additional strengthening in the sealing washer main part, utilize the first snap ring, second snap ring and the flexure strip of additional strengthening to prop up the sealing washer during use, fix the sealing washer on the part, work as the utility model discloses a when sealed effect weakens, change a new additional strengthening can, need not whole change, reach material saving's purpose.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a sectional view of the present invention;

FIG. 2 is an enlarged view of the area A in FIG. 1;

FIG. 3 is a cut-away view of a second snap ring of the present invention;

fig. 4 is a schematic view of the installation structure of the elastic sheet on the second snap ring;

fig. 5 is an enlarged view of the area at B in fig. 4;

fig. 6 is a schematic structural view of the elastic sheet of the present invention.

In the figure: 1. a seal ring main body; 2. a release film; 3. a first card slot; 4. a second card slot; 5. a first polytetrafluoroethylene membrane; 6. a reinforcing mechanism; 61. a first snap ring; 62. a second snap ring; 63. a third card slot; 64. an elastic sheet; 65. a first seal ring; 66. a second polytetrafluoroethylene membrane; 7. a second seal ring; 8. a third polytetrafluoroethylene membrane.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): as shown in fig. 1-6, the utility model relates to a there is O type sealing washer that polytetrafluoroethylene filmed, including sealing washer main part 1, it has from type membrane 2 to bond on the inner wall of sealing washer main part 1, the cover is established and the first polytetrafluoroethylene membrane 5 of fixedly connected with on the circumference outer wall of sealing washer main part 1, first draw-in groove 3 has been seted up between the inside and outside wall of sealing washer main part 1, first draw-in groove 3 is the loop configuration, second draw-in groove 4 has been seted up to the upper end of sealing washer main part 1, second draw-in groove 4 is the loop configuration, second draw-in groove 4 and first draw-in groove 3 communicate with each other, the diameter of the first draw-in groove 3 of diameter ratio of second draw-in groove 4 is big, install strengthening mechanism 6 between second draw-in groove 4 and the first draw-in groove 3 jointly, through changing strengthening mechanism 6 during the use, increase the utility model discloses the leakproofness.

The lower end of the sealing ring main body 1 is fixedly connected with a second sealing ring 7, the circumferential outer wall of the second sealing ring 7 is sleeved and fixedly connected with a third polytetrafluoroethylene film 8, the inner diameter of the second sealing ring 7 is the same as that of the release film 2 and is used for blocking the lower end of the release film 2 and preventing dust and the like from being adhered to the release film 2, the reinforcing mechanism 6 comprises a first clamping ring 61, the first clamping ring 61 is matched with a second clamping groove 4 and clamped in the second clamping groove 4, the distance between the upper end and the lower end of the first clamping ring 61 is the same as that between the upper end and the lower end of the second clamping groove 4, the lower end of the first clamping ring 61 is fixedly connected with a second clamping ring 62, the second clamping ring 62 is matched with the first clamping groove 3 and clamped in the first clamping groove 3, the distance between the upper end and the lower end of the second clamping ring 62 is the same as that between the upper end and the lower end of the first clamping groove 3, the lower end of the second clamping ring 62 is provided with a third clamping groove 63, a plurality of flexure strips 64 of inside fixedly connected with of third draw-in groove 63, a plurality of flexure strips 64 all are the V-arrangement structure, a plurality of flexure strips 64 all inlay the inside at third draw-in groove 63 completely, and the distance between two adjacent flexure strips 64 is the same, the first sealing ring 65 of upper end fixedly connected with of first snap ring 61, the internal diameter of first sealing ring 65 is the same with the internal diameter from type membrane 2, first sealing ring 65 is located the upper end of sealing washer main part 1 outside, fixedly connected with second poly tetrafluoroethylene membrane 66 on the circumference outer wall of first sealing ring 65, utilize first snap ring 61 during the use, the elasticity of second snap ring 62 and a plurality of flexure strips 64 props up sealing washer main part 1, and is convenient will the utility model discloses fix on the part.

Specifically, when the utility model is used, the utility model is installed on a component, under the elastic action of the first snap ring 61, the second snap ring 62 and the plurality of elastic sheets 64, the seal ring main body 1 is propped up to enable the seal ring main body 1 to be clung to the component, thereby achieving the sealing effect, in the process, the first seal ring 65 and the second seal ring 7 can block the release film 2, thereby avoiding the foreign matter from being stuck on the release film 2, weakening the stickiness of the release film 2, leading to the loosening of the utility model, when the sealing effect of the utility model is weakened, the first snap ring 61 is pulled out from the inside of the second snap groove 4 through the first seal ring 65, the second snap ring 62 is pulled out from the inside of the first snap groove 3 by the first snap ring 61, further the old reinforcing mechanism 6 is detached from the seal ring main body 1, when the new reinforcing mechanism 6 is installed, the second snap ring 62 is inserted into the inside of the first snap groove 3, the first snap ring 61 is clamped inside the second clamping groove 4, so that the first sealing ring 65 is supported against the upper end of the sealing ring main body 1, and then the sealing ring can be used continuously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a O type sealing washer that has polytetrafluoroethylene to film, a serial communication port, including sealing washer main part (1), it has from type membrane (2) to bond on the inner wall of sealing washer main part (1), the cover is established and first polytetrafluoroethylene membrane of fixedly connected with (5) on the circumference outer wall of sealing washer main part (1), first draw-in groove (3) have been seted up between the inside and outside wall of sealing washer main part (1), first draw-in groove (3) are the loop configuration, second draw-in groove (4) have been seted up to the upper end of sealing washer main part (1), second draw-in groove (4) are the loop configuration, second draw-in groove (4) and first draw-in groove (3) communicate with each other, the diameter of the first draw-in groove (3) of diameter ratio of second draw-in groove (4) is big, install reinforcing mechanism (6) between second draw-in groove (4) and first draw-in groove (3) jointly.

2. The O-shaped sealing ring with the polytetrafluoroethylene coating film as set forth in claim 1, wherein the reinforcing mechanism (6) comprises a first clamping ring (61), the first clamping ring (61) is matched with a second clamping groove (4) and clamped inside the second clamping groove (4), a second clamping ring (62) is fixedly connected to the lower end of the first clamping ring (61), the second clamping ring (62) is matched with the first clamping groove (3) and clamped inside the first clamping groove (3), a third clamping groove (63) is formed in the lower end of the second clamping ring (62), a plurality of elastic pieces (64) are fixedly connected to the inside of the third clamping groove (63), and a first sealing ring (65) is fixedly connected to the upper end of the first clamping ring (61).

3. The O-ring seal with teflon coating according to claim 2, wherein a plurality of the elastic pieces (64) are all V-shaped, a plurality of the elastic pieces (64) are all embedded inside the third slot (63), and the distance between two adjacent elastic pieces (64) is the same.

4. The O-ring seal with teflon coating according to claim 2, characterized in that the inner diameter of the first sealing ring (65) is the same as the inner diameter of the release film (2), the first sealing ring (65) is located outside the upper end of the seal body (1), and the second teflon film (66) is fixedly connected to the circumferential outer wall of the first sealing ring (65).

5. A teflon coated O-ring according to claim 2, characterized in that the distance between the upper and lower ends of the first snap ring (61) is the same as the distance between the upper and lower ends of the second snap groove (4), and the distance between the upper and lower ends of the second snap ring (62) is the same as the distance between the upper and lower ends of the first snap groove (3).

6. The O-ring seal with teflon coating according to claim 1, characterized in that the lower end of the seal ring main body (1) is fixedly connected with a second seal ring (7), the outer circumferential wall of the second seal ring (7) is sleeved and fixedly connected with a third teflon film (8), and the inner diameter of the second seal ring (7) is the same as the inner diameter of the release film (2).