CN216789227U

CN216789227U - Buffer ring for reciprocating motion

Info

Publication number: CN216789227U
Application number: CN202220183996.4U
Authority: CN
Inventors: 季晓华; 季旭
Original assignee: Yangzhong Huasen Seals Co ltd
Current assignee: Yangzhong Huasen Seals Co ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-06-21
Anticipated expiration: 2032-01-24

Abstract

The utility model discloses a buffer ring for reciprocating motion, which comprises a support ring, wherein the top and the bottom of the support ring are respectively provided with an upper lip and a lower lip, the top and the bottom of the support ring are both fixedly connected with limit rings which are respectively connected with the upper lip and the lower lip in a clamping way, the inner part of the limit ring is fixedly connected with an installation groove, a plurality of springs are fixedly connected between the top and the bottom of the installation groove, the utility model effectively solves the problems that the prior buffer ring can not be provided with a groove with a special shape for releasing back pressure too much due to the special structure of the sealing element, so that the buffer ring can be sealed under the conditions of high load impact and fluctuating pressure, the high-temperature fluid cannot be effectively isolated, and the problem of pressure between the piston rod sealing element and the buffer ring sealing element cannot be solved.

Description

Buffer ring for reciprocating motion

Technical Field

The utility model relates to the technical field of buffer rings, in particular to a buffer ring for reciprocating motion.

Background

A damping ring is typically used in conjunction with the piston rod seal to absorb shock and fluctuating pressures under high loads.

The existing buffer ring cannot design a groove with a special shape for excessively releasing back pressure on a sliding lip due to the special structure of a sealing element, so that high-temperature fluid cannot be effectively isolated under the conditions of high load impact and fluctuating pressure, the pressure between a piston rod sealing element and the buffer ring sealing element cannot be eliminated, and the buffer ring for reciprocating motion is provided to solve the problem.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a cushion ring for reciprocating motion to solve the above-mentioned problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a cushion ring that reciprocating motion used, includes the support ring, the top and the bottom of support ring are provided with lip and lower lip respectively, the equal fixedly connected with spacing ring in support ring top and bottom, the spacing ring is connected with lip and lower lip block respectively, the inside fixedly connected with mounting groove of spacing ring, a plurality of springs of fixedly connected with between mounting groove top and the bottom, spacing frame has been cup jointed with lower lip circumference surface block to the lip, first pressure release recess has all been seted up to upper lip top both sides, second pressure release recess has all been seted up to lower lip bottom both sides.

Wherein, the support ring and the limit frame are of an integrated structure.

And the bottom of the upper lip and the top of the lower lip are both provided with a limiting groove matched with the limiting ring.

Wherein, the support ring is made of tetrafluoroethylene material.

Wherein the upper lip and the lower lip are symmetrical about the support ring.

The top and the bottom of the inner wall of the limiting frame are fixedly connected with bumps, and the circumferential surfaces of the upper lip and the lower lip are provided with clamping grooves matched with the bumps.

Compared with the prior art, the utility model has the beneficial effects that:

the piston rod is under high pressure load or the fluctuating pressure condition, by the two-way pressure release of the first pressure release recess of last lip position and the second pressure release recess of lower lip, eliminate the pressure between piston rod and the buffer ring, through the support ring, can further improve the intensity between last lip and the lower lip, improve the life of last lip and lower lip, simultaneously through the mating reaction of spacing frame and spring, can dismantle support ring and last lip and lower lip between, be convenient for change the support ring, improve the convenience that this support ring used.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

fig. 3 is a top view of the overall structure of the present invention.

In the figure: 1. an upper lip; 2. a first pressure relief groove; 3. a lower lip; 4. a second pressure relief groove; 5. a limiting frame; 6. mounting grooves; 7. a support ring; 8. a spring; 9. a limit ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a cushion ring that reciprocating motion used, includes support ring 7, the top and the bottom of support ring 7 are provided with lip 1 and lower lip 3 respectively, the equal fixedly connected with spacing ring 9 in support ring 7 top and bottom, spacing ring 9 is connected with lip 1 and lower lip 3 block respectively, the inside fixedly connected with mounting groove 6 of spacing ring 9, a plurality of springs of fixedly connected with 8 between 6 tops of mounting groove and the bottom, spacing frame 5 has been cup jointed with 3 circumference surface blocks of lower lip to upper lip 1, first pressure release recess 2 has all been seted up to upper lip 1 top both sides, second pressure release recess 4 has all been seted up to 3 bottom both sides of lower lip.

Wherein, the support ring 7 and the limit frame 5 are of an integrated structure, so that the support strength of the support ring 7 is improved.

Wherein, go up 1 bottoms of lip and 3 tops of lower lip all are provided with the spacing groove with spacing ring 9 looks adaptation, improve the stability of installation.

Wherein, the support ring 7 is made of tetrafluoroethylene material, so that the service life of the support ring 7 is prolonged.

Wherein, go up lip 1 and lower lip 3 are symmetrical about the support ring, improve the pressure release effect.

The top and the bottom of the inner wall of the limiting frame 5 are fixedly connected with bumps, the circumferential surfaces of the upper lip 1 and the lower lip 3 are provided with clamping grooves matched with the bumps, and the stability of installation between the limiting frame 5 and the upper lip 1 and the lower lip 3 is improved.

The working principle is as follows: during the use, the piston rod is under high pressure load or the fluctuating pressure condition, by the two-way pressure release of the first pressure release recess 2 of 1 position of last lip and the second pressure release recess 4 of lower lip, eliminate the pressure between piston rod and the cushion ring, through support ring 7, can further improve the intensity between 1 and the lower lip 3 of last lip, improve the life of 1 and lower lip 3 of last lip, simultaneously through spacing frame 5 and spring 8's mating reaction, can dismantle support ring 7 and last lip 1 and lower lip 3 between, be convenient for change support ring 7, improve the convenience that this support ring 7 used.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. A damping ring for reciprocating movements, comprising a support ring (7), characterized in that: the utility model discloses a pressure relief structure, including support ring (7), spacing ring (9), first pressure relief recess (2) have all been seted up to last lip (1) and lower lip (3) respectively to the top and the bottom of support ring (7), support ring (7) top and the equal fixedly connected with spacing ring (9) in bottom, spacing ring (9) are connected with last lip (1) and lower lip (3) block respectively, spacing frame (5) have been cup jointed to inside fixedly connected with mounting groove (6) of spacing ring (9), a plurality of springs (8) of fixedly connected with between mounting groove (6) top and the bottom, last lip (1) and lower lip (3) circumference surface block, first pressure relief recess (2) have all been seted up to last lip (1) top both sides, second pressure relief recess (4) have all been seted up to lower lip (3) bottom both sides.

2. A cushion ring for reciprocating motion as defined in claim 1, wherein: the support ring (7) and the limiting frame (5) are of an integrally formed structure.

3. A cushion ring for reciprocating motion as defined in claim 1, wherein: the bottom of the upper lip (1) and the top of the lower lip (3) are both provided with limit grooves matched with the limit rings (9).

4. A cushion ring for reciprocating motion as defined in claim 1, wherein: the support ring (7) is made of tetrafluoroethylene material.

5. A cushion ring for reciprocating motion as defined in claim 1, wherein: the upper lip (1) and the lower lip (3) are symmetrical with respect to the support ring.

6. A cushion ring for reciprocating motion as defined in claim 1, wherein: the top and the bottom of the inner wall of the limiting frame (5) are fixedly connected with lugs, and the circumferential surfaces of the upper lip (1) and the lower lip (3) are provided with clamping grooves matched with the lugs.