Sealing structure of fluid connector
By combining a flow connection sleeve, an internal flow tube, a reinforced flange, fastening bolts, and a sealing gasket, the sealing and stability issues of connectors in high-pressure, high-temperature, or severe vibration environments are solved, achieving efficient fluid transmission and equipment protection.
Patent Information
- Application Number
- CN202422171572.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-09-05
AI Technical Summary
In environments with high pressure, high temperature, or severe vibration, the sealing elements and mechanical components of a connector may undergo plastic or elastic deformation due to stresses exceeding the design limits, altering the connector's geometry and sealing performance, leading to fluid leakage and unstable connections.
The design employs a combination of a flow connection sleeve, an internal flow pipe, a reinforced flange, fastening bolts, and a sealing gasket. Through a tight fit and mechanical connection, it forms a double guarantee, enhancing connection stability and sealing, and uses a filter screen to intercept impurities and prevent leakage.
It improves the sealing and stability of fluid connectors, reduces the risk of fluid leakage, protects equipment from vibration and pressure fluctuations, extends service life, and improves fluid transfer efficiency and equipment protection.
Smart Images

Figure CN223839940U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline engineering technology, and in particular to a sealing structure for a fluid connector. Background Technology
[0002] In the field of pipeline engineering technology, fluid connectors and sealing structures are crucial components used to connect different pipes, equipment, and systems to ensure the safe and efficient transmission of fluid media.
[0003] In environments with high pressure, high temperature, or severe vibration, the sealing elements and mechanical components of a connector may be subjected to stresses beyond their design limits. Such excessive stresses may cause plastic or elastic deformation of the material, thereby altering the geometry and sealing performance of the connector. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a sealing structure for a fluid connector.
[0005] This utility model is achieved by the following technical solution: a sealing structure for a fluid connector, including a flow-through sleeve, wherein a pipe groove is provided inside the flow-through sleeve, and an internal flow-through pipe is fixedly connected inside the pipe groove, and positioning holes are provided on both sides of the outer surface of the flow-through sleeve.
[0006] Through the above technical solution, the flow-through sleeve, as the main body of the entire connector, is responsible for connecting different pipes or equipment. The pipe groove is used to fix the built-in flow-through pipe, ensuring that the fluid can flow smoothly when passing through the connector. The design of the pipe groove can prevent the built-in flow-through pipe from shifting during use, thereby ensuring the continuity and stability of fluid flow. The built-in flow-through pipe provides a channel for fluid flow, ensuring that the fluid can flow smoothly inside the connector. The built-in flow-through pipe and the flow-through sleeve are tightly connected, which improves the sealing performance of the overall structure and reduces the possibility of fluid leakage.
[0007] As a further improvement to the above solution, a reinforcing flange is fixedly installed on both sides of the outer surface of the flow connection sleeve by fastening bolts.
[0008] Through the above technical solution, the reinforced flange is fixed to both sides of the flow connection sleeve by fastening bolts, which increases the overall rigidity of the connector and reduces deformation and loosening caused by external forces such as vibration and pressure changes. The connection of the reinforced flange by fastening bolts makes the connector easier to maintain and disassemble, eliminating the need for large-scale disassembly of the entire system and reducing maintenance costs and time.
[0009] As a further improvement to the above solution, one end of the fastening bolt is threaded into the interior of the positioning hole.
[0010] Through the above technical solution, the threaded connection between the fastening bolt and the positioning hole can provide higher connection strength, ensure a firm connection between the reinforced flange and the flow connection sleeve, and reduce loosening caused by vibration or pressure fluctuations.
[0011] As a further improvement to the above solution, the main pipeline is fixedly connected inside the reinforced flange.
[0012] The above technical solutions help ensure the sealing between the reinforced flange and the main pipeline, preventing fluid leakage from the connection during transportation, which is especially important in high-pressure or high-temperature environments.
[0013] As a further improvement to the above solution, a filter screen is fixedly connected inside the main pipe.
[0014] Through the above technical solutions, the main function of the filter screen is to filter impurities and particulate matter in the fluid, preventing these impurities from entering the subsequent pipeline system or equipment, thereby protecting the normal operation of the equipment and reducing the failure rate. By removing impurities from the fluid, the filter screen helps to keep the pipeline system clean, reduce pipeline blockage or equipment wear caused by impurities, thereby improving the overall efficiency and service life of the system.
[0015] As a further improvement to the above solution, a sealing gasket is fixedly connected to the outer surface of the reinforced flange.
[0016] Through the above technical solutions, the main function of the gasket is to provide a sealing interface to prevent fluid leakage at the flange connection. By adding a gasket, the sealing performance of the flange connection can be significantly improved. The gasket can also protect the flange connection from corrosive media and extend the service life of the flange and piping system, especially in highly corrosive environments, where this effect is particularly obvious.
[0017] As a further improvement to the above solution, the main pipeline is connected to the flow connection sleeve via a reinforced flange.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] This utility model provides dual protection through the use of a flow-connecting sleeve, a tight fit between the built-in flow pipe and the flow-connecting sleeve, and a mechanical connection between the reinforced flange and the fastening bolts. Combined with a sealing gasket, this improves both the sealing effect and connection stability. The design of the positioning hole and the fastening bolts ensures even stress distribution, preventing localized stress concentration and effectively preventing connector deformation or damage, significantly reducing the risk of fluid leakage. The filter screen inside the main pipe effectively intercepts impurities and particles in the fluid, ensuring fluid cleanliness. This not only improves fluid transmission efficiency but also protects downstream equipment from particulate abrasion. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the internal flow tube of this utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the pipe trench of this utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the sealing gasket of this utility model;
[0024] Figure 5 This is a schematic diagram of the structure of the filter screen of this utility model.
[0025] Explanation of key symbols:
[0026] 1. Flow connection sleeve; 2. Pipe groove; 3. Built-in flow pipe; 4. Positioning hole; 5. Fastening bolt; 6. Reinforcing flange; 7. Main pipe; 8. Filter screen; 9. Sealing gasket. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example
[0028] Please combine Figure 1-5The sealing structure of a fluid connector according to this embodiment includes a flow-through sleeve 1. The flow-through sleeve 1 has a pipe groove 2 inside, and an internal flow-through pipe 3 is fixedly connected inside the pipe groove 2. Positioning holes 4 are provided on both sides of the outer surface of the flow-through sleeve 1. Fluid enters the flow-through sleeve 1 from the inlet, flows through the internal flow-through pipe 3, and flows out from the outlet. The pipe groove 2 ensures that the position of the internal flow-through pipe 3 is fixed, so that the fluid can flow smoothly. The internal flow-through pipe 3 and the flow-through sleeve 1 are tightly fitted to form a good sealing effect. At the same time, the positioning holes 4 can cooperate with other fixed components to further enhance the overall stability of the connector and reduce the risk of leakage.
[0029] The reinforcing flange 6 is fixedly installed on both sides of the outer surface of the flow connection sleeve 1 by fastening bolts 5. The fastening bolts 5 pass through the positioning holes 4 on the reinforcing flange 6 and the flow connection sleeve 1, and the reinforcing flange 6 is fastened to the flow connection sleeve 1 by threaded connection. This mechanical connection method is simple and reliable and can provide sufficient fastening force. The design of the reinforcing flange 6 can evenly distribute stress and avoid connector deformation or damage caused by local stress concentration.
[0030] One end of the fastening bolt 5 is threaded into the inside of the positioning hole 4. The threaded part of the fastening bolt 5 matches the thread inside the positioning hole 4. By rotating the bolt, it is gradually pushed into the positioning hole 4 until the predetermined tightness is achieved. When the fastening bolt 5 is tightened, it applies pressure to the material around the positioning hole 4. This pressure is transmitted through the positioning hole 4 to the contact surface of the flow connection sleeve 1 and the reinforcing flange 6, thereby pressing the flange tightly onto the flow connection sleeve 1 to form a stable connection.
[0031] The main pipe 7 is fixedly connected inside the reinforcing flange 6. The reinforcing flange 6 is fixedly connected to the main pipe 7, thereby enabling the main pipe 7 to be fixed to the flow connection sleeve 1.
[0032] A filter screen 8 is fixedly connected inside the main pipe 7. When the fluid passes through the filter screen 8, the sieve holes or gaps on the filter screen 8 allow the fluid to pass through, but will intercept impurities and particles larger than the sieve holes. The surface of the filter screen 8 will capture and intercept the tiny particles suspended in the fluid. These particles are trapped on the filter screen 8 due to physical obstruction when passing through the filter screen 8.
[0033] A gasket 9 is fixedly connected to the outer surface of the reinforced flange 6. The material and design of the gasket 9 enable it to form a dense sealing layer under compression, preventing fluid from passing through the gap at the flange connection.
[0034] The main pipeline 7 is connected to the flow connection sleeve 1 via the reinforcing flange 6.
[0035] The implementation principle of the sealing structure of a fluid connector in this embodiment is as follows: The main pipe 7 and the flow-connecting sleeve 1, which are fixedly connected inside the reinforcing flange 6, are fixed by the reinforcing flange 6 to ensure a stable connection between the main pipe 7 and the flow-connecting sleeve 1. At this time, the fluid first enters the flow-connecting sleeve 1 from the inlet. The design of the inlet ensures that the fluid can smoothly enter the internal piping system. The fluid flows through the built-in flow pipe 3, which is located in the pipe groove 2. The setting of the pipe groove 2 ensures that the position of the built-in flow pipe 3 is fixed, avoiding instability during the fluid flow process. The built-in flow pipe 3 and the flow-connecting sleeve 1 are tightly fitted to form a good sealing effect, preventing fluid leakage and ensuring that the fluid can flow smoothly without interference. The reinforcing flange 6 is fixedly installed on both sides of the outer surface of the flow-connecting sleeve 1 by fastening bolts 5. The design of the reinforcing flange 6... It can evenly distribute stress and avoid connector deformation or damage caused by local stress concentration. The fastening bolt 5 passes through the positioning hole 4 on the reinforcing flange 6 and the flow connection sleeve 1, and fastens the reinforcing flange 6 to the flow connection sleeve 1 through the threaded connection. When the fastening bolt 5 is tightened, pressure is applied to the material around the positioning hole 4 to form a stable connection. A filter screen 8 is fixedly connected inside the main pipe 7. When the fluid passes through the filter screen 8, the sieve holes or gaps on the filter screen 8 allow the fluid to pass through, but will intercept impurities and particles larger than the sieve holes. The surface of the filter screen 8 captures and intercepts the small particles suspended in the fluid to ensure the cleanliness of the fluid. The sealing gasket 9 is fixedly connected to the outer surface of the reinforcing flange 6. Its material and design enable it to form a dense sealing layer under compression, effectively preventing the fluid from passing through the gap at the flange connection and ensuring the sealing of the entire fluid connector.
[0036] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A sealing structure for a fluid connector, characterized in that, The device includes a flow-connecting sleeve (1), which has a pipe groove (2) inside. A built-in flow pipe (3) is fixedly connected inside the pipe groove (2). Positioning holes (4) are provided on both sides of the outer surface of the flow-connecting sleeve (1). A reinforcing flange (6) is fixedly installed on both sides of the outer surface of the flow-connecting sleeve (1) by fastening bolts (5). One end of the fastening bolt (5) is threaded into the inside of the positioning hole (4). A main pipe (7) is fixedly connected inside the reinforcing flange (6). A sealing gasket (9) is fixedly connected to the outer surface of the reinforcing flange (6). The main pipe (7) is connected to the flow-connecting sleeve (1) through the reinforcing flange (6).
2. The sealing structure of a fluid connector as described in claim 1, characterized in that: A filter screen (8) is fixedly connected inside the main pipe (7).