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CN-224214869-U - Chemical pressure gauge joint with self-sealing structure

CN224214869UCN 224214869 UCN224214869 UCN 224214869UCN-224214869-U

Abstract

The utility model relates to the technical field of chemical pressure gauge joints, and particularly discloses a chemical pressure gauge joint with a self-sealing structure, which comprises a joint main body, a pressure gauge connecting end and a pipeline connecting end, wherein the joint main body is of a hollow tubular structure, a channel for medium circulation is formed in the joint main body, the pressure gauge connecting end is arranged at one end of the joint main body, an inner thread is arranged at the end of the pressure gauge connecting end and is used for being in threaded connection with an outer thread of the pressure gauge, a plurality of sealing bulges are uniformly arranged on the inner side wall of the pressure gauge connecting end along the circumferential direction, the sealing bulges are rubber bulge strips with triangular sections, and when the pressure gauge is screwed into the pressure gauge connecting end, the sealing bulges can be tightly attached to the outer surface of the pressure gauge to form a plurality of sealing lines, so that the medium is effectively prevented from leaking from the joint part of the pressure gauge and the joint, and the sealing performance of the joint connecting part of the pressure gauge is improved.

Inventors

  • JIANG SHENGJI
  • XU JIE
  • LIU HONGBIN
  • ZHAO XIAOYAN
  • ZHANG WEIQIANG
  • WANG XINGLI

Assignees

  • 甘肃金川恒信高分子科技有限公司

Dates

Publication Date
20260508
Application Date
20250626

Claims (5)

  1. 1. The chemical pressure gauge joint with the self-sealing structure is characterized by comprising a joint main body (1), a pressure gauge connecting end (2) and a pipeline connecting end (3), wherein the joint main body (1) is of a hollow tubular structure, and a channel for medium circulation is formed in the joint main body; The pressure gauge connecting end (2) is arranged at one end of the joint main body (1), an inner thread is arranged at the end of the pressure gauge connecting end and is used for being in threaded connection with an outer thread of a pressure gauge, a plurality of sealing bulges (201) are uniformly arranged on the inner side wall of the pressure gauge connecting end (2) along the circumferential direction, and the sealing bulges (201) are rubber bulge strips with triangular sections; The pipeline connecting end (3) is arranged at the other end of the joint main body (1), an external thread is arranged on the outer surface of the pipeline connecting end (3) and used for being connected with an internal thread of a pipeline, a limiting ring (302) is fixedly connected with the outer wall of the pipeline connecting end (3), and a first sealing ring (301) used for sealing the pipeline and the pipeline connecting end (3) is arranged on the outer wall of the pipeline connecting end (3).
  2. 2. The chemical pressure gauge joint with the self-sealing structure of claim 1, wherein the limiting ring (302) is provided with an annular mounting groove (303) far away from the end face of the joint main body (1), and a second sealing ring (304) is arranged in the mounting groove (303).
  3. 3. A chemical manometer joint with self-sealing structure according to claim 1, characterized in that the first sealing ring (301) is made of a rubber material having elasticity.
  4. 4. The chemical manometer joint with the self-sealing structure according to claim 1, wherein the diameter of the limiting ring (302) is larger than the diameter of the connecting end (3) of the pipeline.
  5. 5. The chemical pressure gauge joint with the self-sealing structure of claim 1, wherein the joint main body (1) and the pressure gauge connecting end (2) and the pipeline connecting end (3) are respectively in an integrated structure.

Description

Chemical pressure gauge joint with self-sealing structure Technical Field The utility model relates to the technical field of chemical pressure gauge joints, and particularly discloses a chemical pressure gauge joint with a self-sealing structure. Background In the chemical production process, the pressure gauge is an important instrument for monitoring the pressure in a pipeline or equipment, and the pressure gauge joint is used as a key component for connecting the pressure gauge and the pipeline or equipment, so that the sealing performance is important. The existing chemical manometer joint often has the problem of poor sealing effect in the use process, medium leakage between a pipeline and the joint and between the manometer and the joint is easy to cause waste of chemical raw materials, safety accidents can be caused, personal safety of operators and the surrounding environment are threatened, and therefore the chemical manometer joint with a self-sealing structure is needed to solve the problem. Disclosure of utility model The utility model provides a chemical pressure gauge joint with a self-sealing structure, which can be tightly attached to the outer surface of a pressure gauge through a sealing bulge to form a plurality of sealing lines, and the outer wall of a pipeline connecting end is tightly wrapped by a first sealing ring to realize a self-sealing effect and effectively prevent medium leakage. The utility model discloses a chemical pressure gauge joint with a self-sealing structure, which comprises a joint main body, a pressure gauge connecting end and a pipeline connecting end, wherein the joint main body is of a hollow tubular structure, and a channel for medium circulation is formed in the joint main body; The pressure gauge connecting end is arranged at one end of the joint main body, the end part of the pressure gauge connecting end is provided with internal threads and is used for being in threaded connection with external threads of the pressure gauge, a plurality of sealing bulges are uniformly arranged on the inner side wall of the pressure gauge connecting end along the circumferential direction, and the sealing bulges are rubber bulge strips with triangular sections; The pipeline connecting end is arranged at the other end of the joint main body, an external thread is arranged on the outer surface of the pipeline connecting end and used for being connected with an internal thread of a pipeline, a limiting ring is fixedly connected with the outer wall of the pipeline connecting end, and a first sealing ring used for sealing the pipeline and the pipeline connecting end is arranged on the outer wall of the pipeline connecting end. As the chemical pressure gauge joint with the self-sealing structure, the end face, far away from the joint main body, of the limiting ring is provided with the annular mounting groove, and a second sealing ring is arranged in the mounting groove. As a chemical pressure gauge joint with a self-sealing structure, the first sealing ring is preferably made of elastic rubber material. As the chemical pressure gauge joint with the self-sealing structure, the diameter of the limiting ring is preferably larger than that of the connecting end of the pipeline. As the chemical pressure gauge joint with the self-sealing structure, the joint main body is preferably integrated with the pressure gauge connecting end and the pipeline connecting end respectively. The beneficial effects of the utility model are as follows: 1. When the pressure gauge is screwed into the connecting end of the pressure gauge, the sealing bulge can be tightly attached to the outer surface of the pressure gauge to form a plurality of sealing lines, so that leakage of a medium from the connecting part of the pressure gauge and the joint is effectively prevented, and the sealing performance of the connecting part of the pressure gauge and the joint is improved; 2. When the pipeline connecting end is in threaded connection with the pipeline, the pipeline can apply inward extrusion force to the first sealing ring along with gradual tightening of connection, so that the first sealing ring is tightly wrapped on the outer wall of the pipeline connecting end, a self-sealing effect is achieved, and leakage of a medium from a connecting part of the pipeline and the joint is effectively prevented. Drawings In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale. Fig. 1 is a front cross-sectional view of a chemical pressure gauge joint with a self-sealing structure according to the present utility model. Fig. 2 is an overall structure diagram of