A high-sealing vacuum pipeline connecting structure

Abstract

This utility model discloses a high-sealing vacuum pipeline connection structure, including a first vacuum pipeline, a second vacuum pipeline for use with the first vacuum pipeline, a sealing connection assembly at the connection between the first and second vacuum pipelines, and a pipeline connector fixedly connected to the end of the first vacuum pipeline. This utility model achieves convenient connection of the vacuum pipelines through the cooperation of the pipeline connector, pipeline connector, fixing bolts, and screw holes. In the sealing connection assembly, a sealing ring and a Y-shaped sealing ring abut against each other to form a first layer of seal. A spring abuts to increase the sealing ring's abutting force, and the combined sealing pressure enhances the sealing performance. An O-ring provides additional sealing protection. Multiple sealing measures effectively prevent vacuum leakage, ensure stable operation of the vacuum system, and greatly meet the needs of industrial scenarios with high vacuum requirements.

Description

Technical Field

[0001] This utility model relates to the field of vacuum tube connection technology, and in particular to a high-sealing vacuum tube connection structure. Background Technology

[0002] In numerous industrial fields and applications involving vacuum environments, such as vacuum coating, vacuum drying, and semiconductor manufacturing, the sealing performance of vacuum pipeline connections is crucial. Good sealing performance ensures the stable and efficient operation of the vacuum system, prevents outside air leakage into the vacuum environment, avoids affecting the vacuum level, and thus guarantees product quality and the reliability of the production process.

[0003] In the prior art, such as the utility model disclosed in publication number CN219954586U, a sealing ring for pipeline connection is provided. This technical solution includes a sealing ring body, with a limiting member connected to the input end of the sealing ring body along the medium conveying direction in the pipeline. The limiting member extends to the output end of the sealing ring body, and a gap is provided between the sealing ring body and the limiting member. Although this design can avoid wrinkles during the installation of outer pipelines to a certain extent and improve the sealing performance of pipeline connections, it still has many shortcomings in practical applications. For example, its sealing structure is relatively simple, relying solely on the cooperation between the sealing ring body and the limiting member, which is insufficient to cope with complex and changing working conditions and wear and aging problems during long-term use, resulting in poor pipeline connection sealing performance and failing to meet the requirements of applications with extremely high vacuum requirements. Therefore, developing a vacuum pipeline connection structure with higher sealing performance is of significant practical importance. Utility Model Content

[0004] The purpose of this invention is to provide a high-sealing vacuum pipeline connection structure. Through the cooperation of the pipeline connector, pipeline connector, fixing bolts, and screw holes, the vacuum pipeline can be easily connected. In the set sealing connection component, the sealing ring and the Y-type sealing ring abut against each other to form the first layer of seal. The abutment spring increases the abutment force of the sealing ring, and the sealing performance is enhanced by the joint compression force. In addition, the O-type sealing ring provides additional sealing protection. Multiple sealing guarantees effectively prevent vacuum leakage, ensure the stable operation of the vacuum system, and greatly meet the needs of industrial scenarios with high vacuum requirements.

[0005] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0006] A high-sealing vacuum pipeline connection structure, comprising:

[0007] Vacuum line one, and a vacuum line two for use in conjunction with vacuum line one is provided on the side of vacuum line one, and a sealing connection assembly is provided at the connection between vacuum line one and vacuum line two.

[0008] In the above-mentioned high-sealing vacuum pipeline connection structure, a pipeline connector is fixedly connected to the end of the first vacuum pipeline, and a pipeline connector that mates with the pipeline connector is fixedly connected to the end of the second vacuum pipeline.

[0009] In the above-mentioned high-sealing vacuum pipeline connection structure, the side of the pipeline connector is provided with a fixing bolt for connecting the pipeline connector seat and the pipeline connector, and the side of the pipeline connector seat is provided with a fixing screw hole that matches the fixing bolt.

[0010] In the aforementioned high-sealing vacuum pipeline connection structure, the sealing connection assembly includes an annular sealing seat fixedly connected to the side of the pipeline connector, and a sealing ring is slidably connected to the inner wall of the annular sealing seat.

[0011] In the above-mentioned high-sealing vacuum pipeline connection structure, a Y-shaped sealing ring is provided on the inner wall of the pipeline connection seat at the position corresponding to the sealing ring, and the side of the sealing ring abuts against the side of the Y-shaped sealing ring.

[0012] In the above-mentioned high-sealing vacuum pipeline connection structure, a plurality of abutment springs arranged at equal intervals are fixedly connected to the side of the sealing ring, and the other end of the abutment spring is fixedly connected to the side of the inner wall of the annular sealing seat.

[0013] In the above-mentioned high-sealing vacuum pipeline connection structure, an O-ring is installed on the side of the annular sealing seat at a position corresponding to the sealing ring, and is in a sealing and sliding connection with the sealing ring.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. This utility model realizes a high-sealing vacuum pipeline connection structure. Through the cooperation of the pipeline connection seat, pipeline connection head, fixing bolts, and screw holes, the vacuum pipeline can be easily connected. In the set sealing connection component, the sealing ring and the Y-type sealing ring abut against each other to form the first layer of seal. The abutment spring increases the abutment force of the sealing ring. Combined with the docking extrusion force, the sealing performance is enhanced. In addition, the O-type sealing ring provides additional sealing protection. Multiple sealing guarantees effectively prevent vacuum leakage, ensure the stable operation of the vacuum system, and greatly meet the needs of industrial scenarios with high vacuum requirements.

[0016] 2. Convenient Connection: A pipe connector is fixedly connected to one end of the vacuum pipe, and a pipe fitting head that mates with the connector is fixedly connected to the other end. A fixing bolt is provided on the side of the pipe fitting head, and a matching screw hole is provided on the side of the connector. When connecting vacuum pipe one and vacuum pipe two, simply tighten the fixing bolt; the threads in the screw hole will allow for convenient connection. This simple operation greatly improves installation efficiency.

[0017] 3. Multiple Sealing Guarantees: A sealing connection assembly is installed at the connection between vacuum line one and vacuum line two. When the line connector and the line head are mated, the sealing ring on the side of the line head will abut against the Y-shaped sealing ring on the side of the line connector. This design forms the first layer of sealing guarantee, effectively preventing outside air from entering the vacuum line.

[0018] 4. Enhanced Sealing Pressure: Several evenly spaced abutment springs are fixedly connected to the side of the sealing ring, with the other end of each spring fixedly connected to the side of the inner wall of the annular sealing seat. The elastic force of the abutment springs increases the abutment force of the sealing ring against the Y-shaped sealing ring. Simultaneously, combined with the compressive force when the pipe connector and pipe joint are mated, this significantly increases the sealing performance of the pipe connector and pipe joint, forming a multi-layered sealing enhancement mechanism that ensures high sealing performance when vacuum pipe one and vacuum pipe two are mated.

[0019] 5. Additional sealing protection: An O-ring is installed on the side of the annular sealing seat at the position corresponding to the sealing ring, which provides an additional layer of sealing protection for the entire connection structure, further improving the sealing performance of the vacuum pipeline connection, effectively preventing vacuum leakage, ensuring the stable operation of the vacuum system, and suitable for various industrial scenarios with extremely high vacuum requirements. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a schematic diagram of the high-sealing vacuum pipeline connection structure of this utility model;

[0022] Figure 2 This is a cross-sectional schematic diagram of the high-sealing vacuum pipeline connection structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the vacuum pipeline in the high-sealing vacuum pipeline connection structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the vacuum pipeline two in the high-sealing vacuum pipeline connection structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the sealing connection component in the high-sealing vacuum pipeline connection structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the Y-shaped sealing ring in the high-sealing vacuum pipeline connection structure of this utility model.

[0027] Explanation of icon numbers:

[0028] 1. Vacuum line one; 2. Vacuum line two; 3. Line connector; 4. Line connector; 5. Sealing connection assembly;

[0029] 401, fixing bolt; 4011, fixing screw hole;

[0030] 501, Annular sealing seat; 5011, Sealing ring;

[0031] 502. Abutment spring;

[0032] 503, O-ring seal; 5031, Y-ring seal. Detailed Implementation

[0033] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0034] Please refer to Figures 1 to 6 As shown, an embodiment of this utility model provides a high-sealing vacuum pipeline connection structure, including: a vacuum pipeline 1, a vacuum pipeline 2 that is used in conjunction with the vacuum pipeline 1 on the side of the vacuum pipeline 1, and a sealing connection component 5 at the connection between the vacuum pipeline 1 and the vacuum pipeline 2.

[0035] By adopting the above technical solution, a foundation has been laid for constructing a complete and highly sealed vacuum pipeline connection system, enabling vacuum pipeline 1 and vacuum pipeline 2 to achieve stable docking through a specific connection method, providing a structural possibility for achieving high sealing performance in the future.

[0036] To achieve a precise and stable connection between vacuum line 1 and vacuum line 2, in this embodiment: a pipe connector 3 is fixedly connected to the end of vacuum line 1, and a pipe connector 4, which mates with the pipe connector 3, is fixedly connected to the end of vacuum line 2. This design provides a clear connection positioning for the two vacuum lines during connection. The pipe connector 3 and the pipe connector 4 cooperate with each other to effectively avoid misalignment during the connection process, ensuring accurate connection and providing a stable prerequisite for subsequent sealing operations.

[0037] To achieve a convenient and secure connection between vacuum line 1 and vacuum line 2, in this embodiment: a fixing bolt 401 for connecting the pipe connector 4 and the pipe connector 3 is provided on the side, and a fixing screw hole 4011 matching the fixing bolt 401 is provided on the side of the pipe connector 3. By tightening the fixing bolt 401, the pipe connector 3 and the pipe connector 4 can be quickly and easily connected together using the threaded engagement between the bolt and the screw hole 4011. Moreover, this connection method is firm and reliable, can withstand a certain amount of external force, and ensures the stability of the vacuum line during use.

[0038] To provide basic structural support for the sealing connection and ensure the feasibility of the sealing operation, in this embodiment, the sealing connection assembly 5 includes an annular sealing seat 501 fixedly connected to the side of the pipe connector 4, and a sealing ring 5011 slidably connected to the inner wall of the annular sealing seat 501. As an important component of the sealing connection assembly 5, the annular sealing seat 501 provides space for the installation and sliding of the sealing ring 5011, enabling the sealing ring 5011 to function in a specific position and providing structural support for achieving high sealing performance.

[0039] To achieve a preliminary sealing effect and construct the first line of defense, in this embodiment: a Y-shaped sealing ring 5031 is provided on the inner wall of the pipe connector 3 at a position corresponding to the sealing ring 5011, and the side of the sealing ring 5011 abuts against the side of the Y-shaped sealing ring 5031. When the pipe connector 3 and the pipe connector 4 are connected, the sealing ring 5011 and the Y-shaped sealing ring 5031 abut against each other. The special shape of the Y-shaped sealing ring 5031 can effectively prevent gas leakage, forming the first sealing barrier and initially ensuring the sealing performance of the vacuum pipe connection.

[0040] To enhance the contact force between the sealing ring 5011 and the Y-shaped sealing ring 5031 and further improve the sealing performance, in this embodiment: a plurality of equally spaced abutment springs 502 are fixedly connected to the side of the sealing ring 5011, and the other end of the abutment springs 502 is fixedly connected to the side of the inner wall of the annular sealing seat 501. Due to their elastic properties, the abutment springs 502 can always apply a spring force to the sealing ring 5011 in the direction of the Y-shaped sealing ring 5031, making the contact between the sealing ring 5011 and the Y-shaped sealing ring 5031 tighter, effectively compensating for gaps that may occur due to manufacturing errors or during use, and further enhancing the sealing effect.

[0041] To provide additional sealing protection and form multiple sealing safeguards to ensure high sealing performance, in this embodiment, an O-ring 503 is installed on the side of the annular sealing seat 501 at a position corresponding to the sealing ring 5011, and is in a sealing and sliding connection with the sealing ring 5011. The O-ring 503 has excellent sealing performance and can maintain a sealed state throughout the sliding process of the sealing ring 5011, preventing gas leakage from the gap between the sealing ring 5011 and the annular sealing seat 501. This provides another reliable sealing protection for the entire vacuum pipeline connection structure, ensuring the high sealing performance of the vacuum pipeline.

[0042] The working principle of this utility model is as follows: When connecting vacuum line 1 and vacuum line 2, first align the line connector 4 with the line connector 3, then tighten the fixing bolt 401 on the side of the line connector 4. Under the action of the thread in the fixing screw hole 4011 on the side of the line connector 3, the fixing bolt 401 gradually screws into the fixing screw hole 4011, making the line connector 4 and the line connector 3 fit tightly together, thus achieving convenient connection between vacuum line 1 and vacuum line 2. During this process, the sealing ring 5011 on the side of the line connector 4 will abut against the Y-shaped sealing ring 5031 on the side of the line connector 3, forming a preliminary seal. At the same time, the abutment spring 502 fixedly connected to the side of the sealing ring 5011 will play an elastic role, always applying a spring force towards the Y-shaped sealing ring 5031 to the sealing ring 5011, increasing the abutment force of the sealing ring 5011 against the Y-shaped sealing ring 5031. In addition, the compressive force generated when the pipe connector 3 and the pipe connector 4 are joined together greatly enhances the sealing performance at the joint of the pipe connector 3 and the pipe connector 4. Furthermore, the O-ring 503 installed on the side of the annular sealing seat 501 is in a sealing sliding connection with the sealing ring 5011, further preventing gas leakage and providing multiple sealing guarantees for the entire connection structure, thereby comprehensively ensuring the high sealing performance of the joint between vacuum pipe 1 and vacuum pipe 2.

[0043] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A high-sealing vacuum pipeline connection structure, comprising a vacuum pipeline (1), characterized in that, The side of the first vacuum line (1) is provided with a second vacuum line (2) that works with the first vacuum line (1). A sealing connection assembly (5) is provided at the connection between the first vacuum line (1) and the second vacuum line (2). A pipe connection seat (3) is fixedly connected to the end of the first vacuum line (1), and a pipe connector (4) that works with the pipe connection seat (3) is fixedly connected to the end of the second vacuum line (2). The sealing connection assembly (5) includes an annular sealing seat (501) fixedly connected to the side of the pipe connector (4), and a sealing ring (5011) slidably connected to the inner wall of the annular sealing seat (501); a Y-shaped sealing ring (5031) is provided on the inner wall of the pipe connector (3) at the position corresponding to the sealing ring (5011) to cooperate with the sealing ring (5011), and the side of the sealing ring (5011) abuts against the side of the Y-shaped sealing ring (5031); a plurality of abutting springs (502) are fixedly connected to the side of the sealing ring (5011) at equal intervals, and the other end of the abutting spring (502) is fixedly connected to the side of the inner wall of the annular sealing seat (501); an O-ring (503) is installed on the side of the annular sealing seat (501) at the position corresponding to the sealing ring (5011) to be slidably connected to the sealing ring (5011).

2. The high-sealing vacuum pipeline connection structure according to claim 1, characterized in that: The side of the pipe connector (4) is provided with a fixing bolt (401) for connecting the pipe connector (3) and the pipe connector (4), and the side of the pipe connector (3) is provided with a fixing screw hole (4011) that matches the fixing bolt (401).

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