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CN-224214683-U - High-pressure combined sealing ring

CN224214683UCN 224214683 UCN224214683 UCN 224214683UCN-224214683-U

Abstract

The utility model relates to the technical field of sealing and discloses a high-pressure combined sealing ring, which comprises a pipeline, wherein a buffer mechanism is arranged on the outer wall of the pipeline, a replaceable lip mechanism is arranged on the outer wall of the buffer mechanism and used for independently replacing a lip when abrasion occurs, an energy storage slow release mechanism is arranged on the outer wall of the replaceable lip mechanism, a partial pressure slow release mechanism is arranged on the outer wall of the energy storage slow release mechanism and used for relieving the problem of concentrated lip load and facilitating partial pressure, and an auxiliary lip is arranged on the outer side of the partial pressure slow release mechanism. According to the utility model, the plurality of piston cylinders stretch and retract under the pressure effect to realize partial pressure, the piston rods transmit pressure changes, and the springs buffer the pressure, so that the problems that the sealing rings cannot maintain balanced sealing in the pressure changes and lack a pressure slow-release mechanism are solved, the abrasion of a main lip is relieved, the leakage risk is reduced, and the sealing requirement under the high-pressure complex working condition is met.

Inventors

  • Meng Chengyuan

Assignees

  • 无锡好莱特密封科技有限公司

Dates

Publication Date
20260508
Application Date
20250811

Claims (8)

  1. 1. The high-pressure combined sealing ring comprises a pipeline (1) and is characterized in that a buffer mechanism (9) is arranged on the outer wall of the pipeline (1), a replaceable lip mechanism (4) is arranged on the outer wall of the buffer mechanism (9), a lip piece can be independently replaced when the replaceable lip mechanism (4) is worn, an energy storage slow release mechanism (5) is arranged on the outer wall of the replaceable lip mechanism (4), a partial pressure slow release mechanism (3) is arranged on the outer wall of the energy storage slow release mechanism (5), the partial pressure slow release mechanism (3) is used for relieving the problem of concentrated lip piece load and is convenient for partial pressure, an auxiliary lip (2) is arranged on the outer side of the partial pressure slow release mechanism (3), a sealing mechanism (6) is arranged on the outer wall of the auxiliary lip (2), an opening and closing mechanism (7) is arranged at the top of the sealing mechanism (6), and an installation mechanism (8) is arranged at the bottom of the sealing mechanism (6). The partial pressure slow release mechanism (3) comprises a plurality of piston cylinders (301), one sides of the piston cylinders (301) which are far away from each other are fixedly connected to the inner wall of the auxiliary lip (2), a plurality of piston cylinders (301) are fixedly connected with piston rods (302) between adjacent ones, a plurality of springs (303) are fixedly connected between adjacent ones of the piston rods (302), a plurality of laminating rings (304) are fixedly connected between adjacent ones of the springs (303), and the outer wall of the auxiliary lip (2) is fixedly connected with an elastic framework ring (305).
  2. 2. The high-pressure combined sealing ring of claim 1, wherein the replaceable lip mechanism (4) comprises a main lip (401), the inner wall of the main lip (401) is slidably connected to the outer wall of the pipeline (1), a plurality of sliding rails (402) are fixedly connected to the outer wall of the main lip (401), a pull ring (403) is fixedly connected to the rear side of the top of the main lip (401), and a plurality of sliding grooves (404) are formed in the inner wall of the energy storage slow release mechanism (5).
  3. 3. The high-pressure combined sealing ring of claim 1, wherein the energy storage slow release mechanism (5) comprises a slow release cavity (501), the outer wall of the slow release cavity (501) is fixedly connected to the inner wall of the attaching ring (304), and the inner wall of the slow release cavity (501) is fixedly connected with a pressure guiding ring groove (502).
  4. 4. The high-pressure combined sealing ring of claim 1, wherein the sealing mechanism (6) comprises a sealing ring (601), the inner wall of the sealing ring (601) is fixedly connected to the outer wall of the elastic framework ring (305), and a sealing sheet (602) is fixedly connected to the bottom of the sealing ring (601).
  5. 5. The high-pressure combined sealing ring of claim 4, wherein the opening and closing mechanism (7) comprises an opening and closing piece (701), the bottom of the opening and closing piece (701) is fixedly connected to the top of the sealing ring (601), pull rods (702) are fixedly connected to the left side and the right side of the top of the opening and closing piece (701), and a locking assembly (703) is arranged at the bottom of the opening and closing piece (701).
  6. 6. The high-pressure combined sealing ring of claim 5, wherein the locking assembly (703) comprises two positioning pins (7031), the tops of the two positioning pins (7031) are respectively and fixedly connected to the left side and the right side of the bottom of the opening and closing piece (701), and two pin points (7032) are formed in the top of the sealing ring (601).
  7. 7. The high-pressure combined sealing ring of claim 1, wherein the mounting mechanism (8) comprises two nuts (801), the tops of the two nuts (801) are fixedly connected to the front side and the rear side of the bottom of the sealing piece (602), and threaded rods (802) are connected to the inner parts of the two nuts (801) in a threaded mode.
  8. 8. The high-pressure combined sealing ring of claim 2, wherein the buffer mechanism (9) comprises a plurality of shock absorption particles (901), the far sides of the shock absorption particles (901) are fixedly connected to the inner wall of the main lip (401), and buffer ring strips (902) are fixedly connected between adjacent shock absorption particles (901).

Description

High-pressure combined sealing ring Technical Field The utility model relates to the technical field of sealing, in particular to a high-pressure combined sealing ring. Background The high-pressure combined sealing ring is a structural component for executing sealing operation in a high-pressure environment, consists of a sealing main body and an elastic supporting body which are made of special materials, is arranged at the joint of the components needing sealing, prevents fluid leakage, ensures stable operation of high pressure, can bear high pressure and maintains good sealing performance. The problem that pressure can fluctuate severely, fluid medium impact among the high pressure liquid sealing operating mode is solved, traditional seal structure is difficult to maintain interface laminating stable for a long time, can lead to leaking because of lip wearing and tearing and reverse deformation, therefore, proposes a high pressure combination sealing washer, aims at reinforcing seal lip dynamic response ability, promotes sealing life and shock resistance, adaptation high pressure seal complicacy demand. The existing high-pressure combined sealing ring has the defects that the main lip can be worn and the leakage risk is increased after being used for a long time, balanced sealing cannot be maintained in bidirectional pressure change, interface stripping and short service life are achieved, in the prior art, a double-lip parallel structure is adopted to improve self-sealing performance, but in actual use, the double-lip structure mainly takes a rigid partition, the burden of the main lip is concentrated under high-pressure impact, the fatigue of the lip area is aggravated, a slow-release mechanism for burst pressure is lacked, and the sealing requirement under high-pressure complex working conditions is difficult to meet. Disclosure of utility model In order to make up for the defects, the utility model provides a high-pressure combined sealing ring, which aims to solve the problems of concentrated burden of a main lip and lack of a burst pressure slow release mechanism in the prior art. In order to achieve the aim, the high-pressure combined sealing ring comprises a pipeline, wherein the outer wall of the pipeline is provided with a buffer mechanism, the outer wall of the buffer mechanism is provided with a replaceable lip mechanism, the replaceable lip mechanism is used for independently replacing a lip piece when abrasion occurs, the outer wall of the replaceable lip mechanism is provided with an energy storage slow release mechanism, the outer wall of the energy storage slow release mechanism is provided with a partial pressure slow release mechanism, the partial pressure slow release mechanism is used for relieving the problem of lip piece load concentration and is convenient for partial pressure, the outer side of the partial pressure slow release mechanism is provided with an auxiliary lip, the outer wall of the auxiliary lip is provided with a sealing mechanism, the top of the sealing mechanism is provided with an opening and closing mechanism, and the bottom of the sealing mechanism is provided with a mounting mechanism; The pressure-dividing slow-release mechanism comprises a plurality of piston cylinders, wherein one sides of the plurality of piston cylinders far away from each other are fixedly connected with the inner wall of the auxiliary lip, a plurality of piston cylinders are fixedly connected with piston rods between adjacent piston rods, springs are fixedly connected between adjacent piston rods, a plurality of attaching rings are fixedly connected between adjacent springs, and the outer wall of the auxiliary lip is fixedly connected with an elastic skeleton ring. As a further description of the above technical solution: the replaceable lip mechanism comprises a main lip, the inner wall of the main lip is slidably connected with the outer wall of the pipeline, the outer wall of the main lip is fixedly connected with a plurality of sliding rails, the rear side of the top of the main lip is fixedly connected with a pull ring, and the inner wall of the energy storage slow release mechanism is provided with a plurality of sliding grooves. As a further description of the above technical solution: the energy storage slow release mechanism comprises a slow release cavity, wherein the outer wall of the slow release cavity is fixedly connected with the inner wall of the laminating ring, and the inner wall of the slow release cavity is fixedly connected with a pressure guiding ring groove. As a further description of the above technical solution: The sealing mechanism comprises a sealing ring, the inner wall of the sealing ring is fixedly connected with the outer wall of the elastic framework ring, and the bottom of the sealing ring is fixedly connected with a sealing sheet. As a further description of the above technical solution: The opening and closing mechanism comprises an opening and closin