Chemical pressure gauge connector with self-sealing structure
By setting sealing protrusions, limiting rings, and sealing rings on the chemical pressure gauge connector, multiple sealing defenses and self-sealing effects are achieved, solving the problem of poor sealing of the chemical pressure gauge connector and improving the sealing performance and safety of the connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU JINCHUAN HENGXIN POLYMER TECH CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-08
AI Technical Summary
Existing chemical pressure gauge connectors have poor sealing performance during use, which can easily lead to media leakage and pose safety hazards.
A chemical pressure gauge connector with a self-sealing structure was designed. By setting a sealing protrusion at the pressure gauge connection end and setting a limiting ring and a sealing ring at the pipeline connection end, multiple sealing defenses and a self-sealing effect are achieved.
It effectively prevents leakage of the medium from the connection between the pressure gauge and the connector, as well as the connection between the pipeline and the connector, thus improving the sealing performance and ensuring safety and the integrity of chemical raw materials.
Smart Images
Figure CN224214869U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical pressure gauge connector technology, and specifically discloses a chemical pressure gauge connector with a self-sealing structure. Background Technology
[0002] In chemical production processes, pressure gauges are important instruments used to monitor the pressure inside pipelines or equipment, and the sealing performance of pressure gauge connectors, as key components connecting pressure gauges to pipelines or equipment, is of paramount importance.
[0003] Existing chemical pressure gauge fittings often suffer from poor sealing performance during use, which can easily lead to leakage of the medium between the pipeline and the fitting, as well as between the pressure gauge and the fitting. This not only wastes chemical raw materials but may also cause safety accidents, threatening the personal safety of operators and the surrounding environment. Therefore, a chemical pressure gauge fitting with a self-sealing structure is needed to solve this problem. Utility Model Content
[0004] This utility model proposes a chemical pressure gauge connector with a self-sealing structure. The sealing protrusion can fit tightly with the outer surface of the pressure gauge to form multiple sealing defenses. The first sealing ring tightly wraps around the outer wall of the pipe connection end to achieve a self-sealing effect and effectively prevent media leakage.
[0005] This utility model is implemented as follows: a chemical pressure gauge connector with a self-sealing structure includes a connector body, a pressure gauge connection end and a pipe connection end. The connector body has a hollow tubular structure with an internal channel for medium flow.
[0006] The pressure gauge connection end is located at one end of the connector body, and its end is provided with an internal thread for threaded connection with the external thread of the pressure gauge. The inner sidewall of the pressure gauge connection end is uniformly provided with multiple sealing protrusions along the circumference. The sealing protrusions are rubber protrusion strips with a triangular cross section.
[0007] The pipe connection end is located at the other end of the connector body. The outer surface of the pipe connection end is provided with external threads for connection with the internal threads of the pipe. A limit ring is fixedly connected to the outer wall of the pipe connection end. A first sealing ring for sealing the pipe and the pipe connection end is provided on the outer wall of the pipe connection end.
[0008] As a preferred embodiment of the chemical pressure gauge connector with a self-sealing structure of this utility model, the end face of the limiting ring away from the connector body is provided with an annular mounting groove, and a second sealing ring is provided inside the mounting groove.
[0009] As a preferred embodiment of the chemical pressure gauge connector with a self-sealing structure of this utility model, the first sealing ring is made of an elastic rubber material.
[0010] In a preferred embodiment of this utility model, a chemical pressure gauge connector with a self-sealing structure, the diameter of the limiting ring is larger than the diameter of the pipe connection end.
[0011] As a preferred embodiment of the chemical pressure gauge connector with a self-sealing structure of this utility model, the connector body, the pressure gauge connection end, and the pipeline connection end are all integrally formed.
[0012] The beneficial effects of this utility model are:
[0013] 1. When the pressure gauge is screwed into the pressure gauge connection end, the sealing protrusion can fit tightly with the outer surface of the pressure gauge, forming multiple sealing defenses, effectively preventing the medium from leaking from the connection between the pressure gauge and the connector, and improving the sealing performance of the connection between the pressure gauge and the connector.
[0014] 2. When the pipe connection end is threaded to the pipe, as the connection is gradually tightened, the pipe will exert an inward squeezing force on the first sealing ring, so that the first sealing ring tightly wraps around the outer wall of the pipe connection end, achieving a self-sealing effect and effectively preventing the medium from leaking from the connection between the pipe and the joint. Attached Figure Description
[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0016] Figure 1 This is a front sectional view of a chemical pressure gauge connector with a self-sealing structure according to this utility model.
[0017] Figure 2 This is an overall structural diagram of a chemical pressure gauge connector with a self-sealing structure according to the present invention.
[0018] Figure 3 This is a structural diagram of the air purification cylinder and mounting cylinder of this utility model.
[0019] The markings in the diagram are: 1. Connector body; 2. Pressure gauge connection end; 201. Sealing protrusion; 3. Pipe connection end; 301. First sealing ring; 302. Limiting ring; 303. Mounting groove; 304. Second sealing ring. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0021] Please see Figure 1-3 A chemical pressure gauge connector with a self-sealing structure includes a connector body 1, a pressure gauge connection end 2, and a pipe connection end 3. The connector body 1 has a hollow tubular structure with an internal channel for medium flow.
[0022] The pressure gauge connection end 2 is located at one end of the connector body 1. Its end is provided with an internal thread for threaded connection with the external thread of the pressure gauge. Multiple sealing protrusions 201 are evenly arranged on the inner side wall of the pressure gauge connection end 2 in the circumferential direction. The sealing protrusions 201 are rubber protrusion strips with a triangular cross section.
[0023] The pipe connection end 3 is located at the other end of the connector body 1. The outer surface of the pipe connection end 3 is provided with external threads for connection with the internal threads of the pipe. A limit ring 302 is fixedly connected to the outer wall of the pipe connection end 3. A first sealing ring 301 for sealing the pipe and the pipe connection end 3 is provided on the outer wall of the pipe connection end 3.
[0024] In this embodiment: when the pressure gauge is screwed into the pressure gauge connection end 2, the sealing protrusion 201 can fit tightly with the outer surface of the pressure gauge, forming multiple sealing lines, effectively preventing the medium from leaking from the connection between the pressure gauge and the connector, and improving the sealing performance of the connection between the pressure gauge and the connector.
[0025] When the pipe connection end 3 is threaded to the pipe, as the connection is gradually tightened, the pipe will exert an inward squeezing force on the first sealing ring 301, so that the first sealing ring 301 tightly wraps around the outer wall of the pipe connection end 3, achieving a self-sealing effect and effectively preventing the medium from leaking from the connection between the pipe and the joint.
[0026] As a technical optimization of this utility model, the end face of the limiting ring 302 away from the connector body 1 is provided with an annular mounting groove 303, and a second sealing ring 304 is provided inside the mounting groove 303.
[0027] In this embodiment: when the pipe end face is pressed against the limiting ring 302, the second sealing ring 304 is compressed to form another sealing barrier.
[0028] As a technical optimization of this utility model, the first sealing ring 301 is made of elastic rubber material.
[0029] In this embodiment: the elasticity of the first sealing ring 301 makes the first sealing ring 301 tightly wrap around the outer wall of the pipe connection end 3, thereby achieving a self-sealing effect.
[0030] As a technical optimization of this utility model, the diameter of the limiting ring 302 is larger than the diameter of the pipe connection end 3.
[0031] In this embodiment, the diameter of the limiting ring 302 is larger than the diameter of the pipe connection end 3, which can serve as a mechanical stop for the pipe screwing depth, ensuring that the first sealing ring 301 is always in the effective sealing area of the inner wall of the pipe.
[0032] As a technical optimization of this utility model, the connector body 1, pressure gauge connection end 2, and pipeline connection end 3 are integrally formed.
[0033] In this embodiment, the stability and sealing of the overall structure of the connector are ensured, avoiding the risk of media leakage due to gaps at the connection.
[0034] The working principle and usage process of this utility model: When the pressure gauge is screwed into the pressure gauge connection end 2, the sealing protrusion 201 can fit tightly with the outer surface of the pressure gauge, forming multiple sealing defenses, effectively preventing the medium from leaking from the connection between the pressure gauge and the connector, and improving the sealing performance of the connection between the pressure gauge and the connector.
[0035] When the pipe connection end 3 is threaded to the pipe, as the connection is gradually tightened, the pipe will exert an inward squeezing force on the first sealing ring 301, so that the first sealing ring 301 tightly wraps around the outer wall of the pipe connection end 3, achieving a self-sealing effect. When the pipe end face presses the limiting ring 302, the second sealing ring 304 is compressed to form another sealing barrier, effectively preventing the medium from leaking from the connection between the pipe and the joint.
[0036] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0037] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A chemical pressure gauge connector with a self-sealing structure, characterized in that: It includes a connector body (1), a pressure gauge connection end (2) and a pipe connection end (3). The connector body (1) has a hollow tubular structure with an internal channel for medium flow. The pressure gauge connection end (2) is located at one end of the connector body (1), and its end is provided with an internal thread for threaded connection with the external thread of the pressure gauge. The inner sidewall of the pressure gauge connection end (2) is uniformly provided with multiple sealing protrusions (201) along the circumference. The sealing protrusions (201) are rubber protrusion strips with a triangular cross section. The pipe connection end (3) is located at the other end of the connector body (1). The outer surface of the pipe connection end (3) is provided with an external thread for connection with the internal thread of the pipe. A limit ring (302) is fixedly connected to the outer wall of the pipe connection end (3). The outer wall of the pipe connection end (3) is provided with a first sealing ring (301) for sealing the pipe and the pipe connection end (3).
2. The chemical pressure gauge connector with a self-sealing structure according to claim 1, characterized in that: The limiting ring (302) has an annular mounting groove (303) on its end face away from the connector body (1), and a second sealing ring (304) is provided inside the mounting groove (303).
3. A chemical pressure gauge connector with a self-sealing structure according to claim 1, characterized in that: The first sealing ring (301) is made of an elastic rubber material.
4. A chemical pressure gauge connector with a self-sealing structure according to claim 1, characterized in that: The diameter of the limiting ring (302) is larger than the diameter of the pipe connection end (3).
5. A chemical pressure gauge connector with a self-sealing structure according to claim 1, characterized in that: The connector body (1) is integrally formed with the pressure gauge connection end (2) and the pipeline connection end (3).