Sealing joint and pipeline sealing connection structure

Abstract

The utility model discloses a sealing joint, and relates to the technical field of pipeline sealing, the sealing joint comprises a pipe main body and a flange structure, and the pipe main body is internally provided with a connecting channel extending in the first direction of the pipe main body; the flange structure is arranged outside the pipe body in the first direction of the pipe body, the flange structure deviates from the pipe body in the second direction of the pipe body, and the second direction is perpendicular to the first direction. According to the sealing joint, the flange structure is arranged outside the pipe main body, so that the problem that a hose is difficult to mount and dismount in the prior art is effectively solved, and the operation convenience and the sealing reliability are improved.

Description

Technical Field

[0001] This application relates to the field of pipeline sealing technology, and in particular to a sealing joint and pipeline sealing connection structure. Background Technology

[0002] In the field of pipeline sealing connections, sealing joints are crucial components for ensuring a tight seal during fluid transmission. In existing technology, three-section pagoda joints are widely used in applications requiring high sealing performance. This type of joint provides sealing protection through its three-layer structure, effectively preventing fluid leakage. However, this design has also revealed some problems in practical applications, especially during the installation and disassembly of hoses.

[0003] In the process of developing this utility model, the inventors discovered that the existing technology has at least the following problems: While it is relatively easy to insert the first section of the three-section pagoda connector into the hose, the installation difficulty of each subsequent section gradually increases, leading to inconvenience. Disassembling the hose requires cutting it open and softening it with hot air before it can be removed. This not only requires replacing the hose but may also damage the pagoda connector, affecting the sealing performance. The disassembly is difficult and costly. Utility Model Content

[0004] The purpose of this application is to provide a sealing joint that effectively solves the problem of difficult installation and disassembly of hoses in the prior art by setting a flange structure on the outside of the pipe body, thereby improving operational convenience and sealing reliability. Another purpose of this application is to provide a pipeline sealing connection structure.

[0005] To achieve the above objectives, this application provides a sealing joint, comprising:

[0006] The tube body has an internal connecting channel extending along a first direction of the tube body;

[0007] A flange structure is disposed outside the tube body. In a second direction of the tube body, the flange structure is disposed away from the tube body, and the second direction is perpendicular to the first direction.

[0008] In some embodiments, the tube body is provided with a first end for connection with a flexible tube;

[0009] On the first side of the flange structure facing the first end, a first guide slope is provided on the outside of the tube body. The first guide slope is used to guide the hose during insertion.

[0010] In some embodiments, the tube body is provided with a first end for connection with a flexible tube;

[0011] On the second side of the flange structure opposite to the first end, a second guide slope is provided on the outside of the tube body. The second guide slope is used to guide the hose when it is pulled out.

[0012] In some embodiments, the tube body is provided with a first end for connection with a flexible tube;

[0013] The sealing joint also includes:

[0014] A limiting structure is provided outside the tube body. In a first direction of the tube body, the limiting structure is located on the second side of the flange structure opposite to the first end. The flange structure is used to limit the hose during insertion.

[0015] In some embodiments, in the first direction of the tube body, the outer side of the tube body is provided with a first guide slope, a flange structure, a second guide slope and a limiting structure in sequence;

[0016] The dimension of the first guide ramp in the first direction is greater than the dimension of the second guide ramp in the first direction;

[0017] The distance between the second guide ramp and the limiting structure in the first direction is greater than the dimension of the first guide ramp in the first direction.

[0018] In some embodiments, the surface roughness of the outer surface of the tube body is between Ra0.4um and Ra1.6um.

[0019] In some embodiments, the first guide ramp has a first guide ramp angle with the first direction, and the first guide ramp angle is between [10°, 45°].

[0020] In some embodiments, the included angle of the first guide ramp is progressively set, and the included angle of the first guide ramp at the first end is greater than the included angle of the first guide ramp at the flange structure.

[0021] In some embodiments, the tube body is provided with a first end for connection with a flexible tube;

[0022] The outside of the tube body is provided with an installation guide groove, which is located on the first side of the flange structure facing the first end. The installation guide groove is used to cooperate with the hose to limit the circumferential position of the hose on the tube body.

[0023] The outside of the tube body is provided with a disassembly auxiliary groove, which is located on the second side of the flange structure opposite to the first end. The disassembly auxiliary groove is used to allow tools to enter and clamp the hose.

[0024] In some embodiments, the mounting guide groove spirals along the first direction, forming a spiral around the first direction.

[0025] In some embodiments, a chamfer is provided between the second guide slope and the tube body, a chamfer is provided between the second guide slope and the flange structure, and a chamfer is provided between the first guide slope and the first end.

[0026] This application also provides a pipeline sealing connection structure, including a connector, a hose and the aforementioned sealing joint, wherein the sealing joint connects the connector and the hose.

[0027] Compared with the above background technology, the sealing joint provided in this application mainly includes a pipe body and a flange structure. The pipe body has a connecting channel extending along a first direction of the pipe body. The flange structure is located on the outside of the pipe body. In a second direction of the pipe body, the flange structure is located away from the pipe body, and the second direction is perpendicular to the first direction.

[0028] In the field of pipeline sealing connections, sealing joints are crucial components for ensuring a tight seal during fluid transmission. While existing three-section pagoda joints offer good sealing performance, the installation and disassembly of hoses present numerous inconveniences in practical applications. Specifically, while installing the first section of a three-section pagoda joint is relatively easy, the installation of each subsequent section becomes progressively more difficult, leading to operational inconvenience. Disassembling the hose requires slicing it and softening it with hot air before removal. This not only increases the frequency of hose replacement but may also damage the pagoda joint, affecting sealing performance. Furthermore, the disassembly process is difficult and costly.

[0029] To address the aforementioned problems, this application provides a novel sealing joint. This sealing joint mainly comprises a pipe body and a flange structure. The pipe body has an internal connecting channel extending axially (in a first direction) for fluid transmission. The flange structure is located on the outside of the pipe body, radially (in a second direction) away from the pipe body. The ingenious aspect of this design is that the flange structure enhances the connection strength between the hose and the sealing joint, preventing relative slippage of the hose and acting as an anti-pull-out mechanism. By setting the flange structure on the outside of the pipe body, the three-stage design of traditional pagoda joints is avoided, reducing the difficulty of insertion and removal, eliminating the need to damage the hose, and allowing both the hose and the sealing joint to be reused, thus reducing usage costs and improving economic efficiency. Simultaneously, this design ensures that the sealing joint maintains good sealing performance under various operating conditions, improving sealing reliability.

[0030] Based on the above structural and process descriptions, it can be seen that the sealing joint has at least the following beneficial effects: by setting a flange structure on the outside of the pipe body, the sealing joint effectively solves the problem of difficult installation and disassembly of hoses in the prior art, and improves the convenience of operation and sealing reliability. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0032] Figure 1 A schematic diagram of a sealing joint provided in an embodiment of this application;

[0033] Figure 2 A cross-sectional view of the sealing joint provided in an embodiment of this application;

[0034] Figure 3 This is a schematic diagram of the sealing joint provided in an embodiment of this application from another perspective.

[0035] in:

[0036] Sealing joint 100

[0037] Pipe body 1, connecting channel 11, first end 12, second end 13

[0038] Flange structure 2

[0039] First guide slope 3

[0040] Second guide slope 4

[0041] Limiting structure 5

[0042] Install guide groove 6.

[0043] Remove auxiliary slot 7. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] Please refer to Figure 1 and Figure 2 ,in, Figure 1 This is a schematic diagram of a sealing joint provided in an embodiment of this application. Figure 2 A cross-sectional view of a sealing joint provided in an embodiment of this application.

[0047] In a first specific embodiment, the sealing joint 100 provided by the present application mainly includes a pipe body 1 and a flange structure 2. The pipe body 1 has a connecting channel 11 extending along a first direction of the pipe body 1 inside. The flange structure 2 is located outside the pipe body 1. In a second direction of the pipe body 1, the flange structure 2 is located away from the pipe body 1, and the second direction is perpendicular to the first direction.

[0048] In some cases, the first direction of the tube body 1 is the axial direction / length direction of the tube body 1, and the second direction of the tube body 1 is the diameter direction / radial direction, width direction, and height direction of the tube body 1.

[0049] In the field of pipeline sealing connections, the sealing joint 100 is a crucial component for ensuring a tight seal during fluid transmission. While existing three-section pagoda joints offer good sealing performance, the installation and disassembly of hoses present numerous inconveniences in practical applications. Specifically, while installing the first section of the three-section pagoda joint is relatively easy, the installation difficulty increases progressively with each subsequent section, leading to operational inconvenience. Disassembling the hose requires slicing it and softening it with hot air before removal. This not only increases the frequency of hose replacement but may also damage the pagoda joint, affecting sealing performance. Furthermore, the disassembly process is difficult and costly.

[0050] To address the aforementioned problems, this application provides a novel sealing joint 100. The sealing joint 100 mainly comprises a pipe body 1 and a flange structure 2. The pipe body 1 has a connecting channel 11 extending axially (in a first direction) for fluid transmission. The flange structure 2 is located outside the pipe body 1, radially (in a second direction) away from it. The ingenuity of this design lies in the fact that the flange structure 2 enhances the connection strength between the hose and the sealing joint 100, preventing relative slippage of the hose and acting as an anti-pull-out mechanism. By providing the flange structure 2 outside the pipe body 1, the three-stage design of traditional pagoda joints is avoided, reducing the difficulty of insertion and removal without damaging the hose. This allows both the hose and the sealing joint 100 to be reused, reducing operating costs and improving economic efficiency. Simultaneously, this design ensures that the sealing joint 100 maintains good sealing performance under various operating conditions, improving sealing reliability.

[0051] Based on the above structural and process descriptions, it can be seen that the sealing joint 100 has at least the following beneficial effects: by setting a flange structure 2 on the outside of the pipe body 1, the sealing joint 100 effectively solves the problem of difficult installation and disassembly of hoses in the prior art, and improves the convenience of operation and sealing reliability.

[0052] In some cases, such as Figure 2 As shown, Φds is the outer diameter of the tube body 1, and φdw is the outer diameter of the flange structure 2. φdw is greater than Φds, which means that the flange structure 2 protrudes outward from the outer surface of the tube body 1.

[0053] In some embodiments, the tube body 1 is provided with a first end 12 for connecting with a flexible tube;

[0054] On the first side of the flange structure 2 facing the first end 12, the outside of the tube body 1 is provided with a first guide slope 3, which is used to provide guidance for the hose during insertion.

[0055] In some cases, the position of the first end 12 is regarded as the front end of the tube body 1, the flange structure 2 is located at the front end of the tube body 1, and the first guide slope 3 is located on the front side of the flange structure 2. When the hose is inserted, the hose is sleeved from the front end of the tube body 1. Under the guidance of the first guide slope 3 from front to back, the hose finally forms a seal with the flange structure 2 inward at the front end of the tube body 1.

[0056] In this embodiment, the tube body 1 is designed with a first end 12 specifically for connecting to the hose, which is the key part where the hose connects to the sealing connector 100. On the side of the flange structure 2 facing the first end 12, i.e., the front end in the hose insertion direction, a first guide slope 3 is specially provided on the outside of the tube body 1. This first guide slope 3 plays a crucial role in the hose insertion process, providing initial guidance for the hose.

[0057] Specifically, the presence of the first guide bevel 3 allows the hose to enter more smoothly along the predetermined path during insertion, avoiding insertion difficulties caused by directly facing a vertical surface. This design significantly improves the accuracy of the hose's engagement with the flange structure 2, ensuring the hose is precisely fitted onto the flange structure 2. Compared to traditional designs without a guide bevel, the first guide bevel 3 guides the hose more effectively, reducing resistance and offset during insertion, thereby achieving a tight fit between the hose and the flange structure 2 and ensuring a good seal. This structural design not only improves operational convenience but also enhances the overall performance and reliability of the sealing joint 100.

[0058] In some embodiments, the tube body 1 is provided with a first end 12 for connecting with a flexible tube;

[0059] On the second side of the flange structure 2 facing away from the first end 12, a second guide slope 4 is provided on the outside of the tube body 1. The second guide slope 4 is used to provide guidance for the hose when it is pulled out.

[0060] In some cases, the position of the first end 12 is regarded as the front end of the tube body 1, the flange structure 2 is located at the front end of the tube body 1, and the second guide slope 4 is located at the rear side of the flange structure 2. When the hose is pulled out, the hose is pulled out from the front end of the tube body 1 under the guidance of the second guide slope 4 from back to front.

[0061] In this embodiment, the tube body 1 is provided with a first end 12 for connecting to the hose, which is a key part for the hose to connect to the sealing joint 100. On the second side of the flange structure 2 opposite to the first end 12, i.e. the side in the hose pulling direction, a second guide slope 4 is specially provided on the outside of the tube body 1. This design plays an important role in the hose pulling process.

[0062] The presence of the second guide ramp 4 allows the hose to exit more smoothly along a predetermined path during disassembly, avoiding difficulties caused by directly facing a vertical surface. This design significantly improves the ease of hose disassembly, allowing the hose to be easily pulled out of the sealing connector 100 without damaging the hose or connector. Compared to traditional designs without a guide ramp, the second guide ramp 4 more effectively guides the hose out of the hose, reducing resistance and deviation during the disassembly process, thus achieving smooth hose removal.

[0063] This structural design not only improves operational convenience but also enhances the reusability of the sealing joint 100. Guided by the second guide ramp 4, the hose can be easily pulled out and reinserted without destructive operations such as slashing or heating the hose, thereby extending the service life of the hose and sealing joint 100, reducing operating costs, and improving economic efficiency.

[0064] In some embodiments, the tube body 1 is provided with a first end 12 for connecting with a flexible tube;

[0065] The sealing joint 100 also includes:

[0066] The limiting structure 5 is located outside the tube body 1. In the first direction of the tube body 1, the limiting structure 5 is located on the second side of the flange structure 2 facing away from the first end 12. The flange structure 2 is used to provide a limit for the hose when it is inserted.

[0067] In some cases, the limiting structure 5 is a truncated cone that surrounds the circumference of the tube body 1.

[0068] In this embodiment, the tube body 1 has a first end 12 for connecting with the flexible tube, which is a key part for the flexible tube to connect to the sealing joint 100. The sealing joint 100 also includes a limiting structure 5, which is located on the outside of the tube body 1, in a first direction of the tube body 1, on the second side of the flange structure 2 opposite to the first end 12. The flange structure 2 is used to limit the flexible tube during insertion to prevent over-insertion.

[0069] The function of the limiting structure 5 is to precisely control the insertion distance of the hose. During insertion, the hose moves from front to back along the first direction of the hose body 1, starting from the first end 12. When the hose reaches the limiting structure 5, the limiting structure 5 prevents the hose from moving further backward, thus ensuring that the insertion depth of the hose reaches the predetermined position. At this point, the remaining portion of the hose is already fitted onto the flange structure 2, forming a seal. This design ensures that the hose accurately reaches the predetermined position during insertion, avoiding sealing problems caused by excessive or insufficient insertion. Through the precise control of the limiting structure 5, the connection between the hose and the sealing joint 100 is more reliable, and the sealing performance is guaranteed.

[0070] In some embodiments, in the first direction of the tube body 1, the outside of the tube body 1 is provided with a first guide slope 3, a flange structure 2, a second guide slope 4 and a limiting structure 5 in sequence;

[0071] The dimension of the first guide ramp 3 in the first direction is greater than the dimension of the second guide ramp 4 in the first direction.

[0072] Optionally, the distance between the second guide ramp 4 and the limiting structure 5 in the first direction is greater than the dimension of the first guide ramp 3 in the first direction.

[0073] In this embodiment, the outer surface of the tube body 1 is provided with a first guide slope 3, a flange structure 2, a second guide slope 4, and a limiting structure 5 in sequence in a first direction. This structural design fully considers the guiding requirements of the hose during insertion and removal, as well as the positional stability after insertion.

[0074] The first guide ramp 3 is larger in dimension in the first direction than the second guide ramp 4. This dimensional difference is designed based on their different functions. The main function of the first guide ramp 3 is to provide initial guidance during hose insertion, ensuring that the hose can smoothly enter along the correct path and fit onto the flange structure 2. The larger size allows the first guide ramp 3 to guide the hose more effectively, reducing resistance and offset during insertion, thereby improving the ease and accuracy of insertion.

[0075] In contrast, the second guide ramp 4 serves to guide the hose during withdrawal. Due to its smaller size in the first direction, its pull-out guiding effect is relatively weaker. The ingenuity of this design lies in the fact that, when the hose is fully inserted and in the correct position, although it is simultaneously affected by both the pull-out and insertion guides, the stronger insertion guide helps to weaken the pull-out guide's effect, thus preventing the hose from accidentally dislodging. This design ensures smooth hose withdrawal while also improving the hose's stability after insertion.

[0076] Furthermore, the distance between the second guide ramp 4 and the limiting structure 5 in the first direction is greater than the dimension of the first guide ramp 3 in the first direction. This design takes into account the different dimensions of the hose before and after it is fitted onto the flange structure 2. The dimension of the first guide ramp 3 can be considered as the dimension of the hose before fitting, while the distance between the second guide ramp 4 and the limiting structure 5 can be considered as the dimension of the hose after fitting. Since the dimension of the hose after fitting is greater than the dimension before fitting, this design reduces the difficulty of fitting the hose before fitting and increases the allowance after fitting. This not only makes the hose easier to insert during the process, but also provides sufficient allowance after insertion to ensure a tight fit between the hose and the flange structure 2, further enhancing the sealing effect and the reliability of the connection.

[0077] In some cases, such as Figure 2 As shown, the first guide slope 3 has a dimension of f in the first direction, and the second guide slope 4 has a dimension of b in the first direction, where f is greater than b.

[0078] The rear end of the second guide slope 4 has a chamfer Ra° between it and the tube body 1, the front end of the second guide slope 4 has a chamfer Rb° between it and the flange structure 2, and the front end of the first guide slope 3 has a chamfer Rc° between it and the first end 12.

[0079] In this embodiment, these chamfers are designed to optimize the contact performance of the hose during insertion and removal, while reducing stress concentration and improving the durability of the structure.

[0080] Specifically, the chamfer Ra° at the rear end of the second guide bevel 4 makes the hose easier to pull out, reducing friction and wear caused by sudden angle changes. The chamfer Rb° at the front end helps the hose transition smoothly when approaching the flange structure 2, avoiding damage to the hose caused by sharp edges. Similarly, the chamfer Rc° at the front end of the first guide bevel 3 ensures that the hose can enter smoothly in the initial stage of insertion, reducing resistance and potential damage risks during insertion.

[0081] These chamfered designs not only improve the fit accuracy between the hose and the sealing joint 100, but also enhance the overall structural reliability and service life. Through this detailed optimization, the sealing joint 100 can better adapt to various working conditions in practical applications, ensuring the stability and durability of its sealing performance.

[0082] Please refer to Figure 3 , Figure 3 This is a schematic diagram of the sealing joint provided in an embodiment of this application from another perspective.

[0083] In some embodiments, the surface roughness of the outer surface of the tube body 1 is between Ra0.4um and Ra1.6um.

[0084] In this embodiment, the outer surface roughness of the tube body 1 is carefully designed to be between Ra0.4 μm and Ra1.6 μm. This range is selected based on a comprehensive consideration of sealing performance, aiming to ensure that the sealing surface is neither too smooth, which would lead to a decrease in sealing performance, nor too rough, which would increase the risk of leakage. This fine surface treatment balances sealing performance and reliability, enabling the sealing joint 100 to maintain a good sealing effect under various operating conditions.

[0085] Furthermore, to achieve optimal sealing performance, the preferred outer surface roughness of the tube body 1 is set to Ra 0.8 μm. This specific value was derived based on extensive experiments and tests, representing the ideal state for achieving the best sealing effect within a given roughness range. By controlling the outer surface roughness to Ra 0.8 μm, not only is a tight fit between the hose and the tube body 1 ensured, but fluid leakage at the connection point is also effectively prevented, thereby significantly improving the overall performance and service life of the sealing joint 100.

[0086] In some embodiments, the first guide slope 3 has a first guide slope angle with the first direction, and the first guide slope angle is between [10°, 45°].

[0087] In this embodiment, the selection of this angle range is based on a comprehensive consideration of guiding performance and structural stability during hose insertion.

[0088] Specifically, the design of the included angle of the first guide ramp is intended to ensure that the hose receives sufficient guidance during insertion, while avoiding insertion difficulties due to an excessively large angle or insufficient structural strength due to an excessively small angle. The lower limit of the angle range of 10° provides more stable guidance, ensuring that the hose has sufficient guidance during insertion, allowing it to smoothly enter the tube body 1 along the first guide ramp 3. The upper limit of 45° provides a wider insertion guidance range, while ensuring sufficient guidance without causing unnecessary displacement or jamming of the hose during insertion due to an excessively large angle.

[0089] In some embodiments, the included angle of the first guide ramp is progressively set, and the included angle of the first guide ramp 3 at the first end 12 is greater than the included angle of the first guide ramp 3 at the flange structure 2.

[0090] In this embodiment, the angle between the first guide slope 3 and the first direction is not constant, but rather gradually increased. This design means that the slope of the first guide slope 3 is not uniform, but varies with its position. Specifically, the angle of the first guide slope 3 at the first end 12 is greater than that at the flange structure 2. This gradual design means that the angle of the first guide slope 3 gradually decreases from front to back, reaching its maximum value at the front end of the tube body 1.

[0091] This progressive design offers significant advantages. In the initial stage of hose insertion, the larger angle of the first guide ramp 3 at the first end 12 facilitates hose alignment and entry into the hose body 1. The larger initial angle provides a wider insertion guide range, reducing insertion difficulty and making operation more convenient. As the hose insertion depth increases, the angle of the first guide ramp gradually decreases, which helps to better secure and guide the hose, preventing it from coming off or shifting due to excessive angle. The smaller angle provides more stable guidance as the hose approaches the flange structure 2, ensuring a smooth transition to the flange structure 2 and thus achieving a more reliable sealing connection.

[0092] Through this progressive design, the first guide slope 3 not only improves the ease of hose insertion but also enhances the connection stability between the hose and the sealing joint 100, ensuring reliable sealing performance. In practical applications, this design effectively reduces operational errors, improves work efficiency, and guarantees the long-term stable operation of the sealing joint 100.

[0093] Optionally, the first guide slope 3 at the first end 12 has an included angle of 45°, and the first guide slope 3 at the flange structure 2 has an included angle of 10°.

[0094] In some cases, such as Figure 2 As shown, the angle β between the first guide slope 3 and the first direction is important to note. Figure 2 The illustration shows an embodiment where the included angle β of the first guide ramp remains constant. In another embodiment, the included angle β of the first guide ramp can be designed progressively.

[0095] Alternatively, in one embodiment where the included angle β of the first guide ramp remains unchanged, the included angle β of the first guide ramp is 15°, which is between [10°, 45°]; in other embodiments where the included angle β of the first guide ramp can be designed progressively, the included angle β of the first guide ramp is also between [10°, 45°].

[0096] In some embodiments, the tube body 1 is provided with a first end 12 for connecting with a flexible tube;

[0097] The outer side of the tube body 1 is provided with a mounting guide groove 6. The mounting guide groove 6 is located on the first side of the flange structure 2 facing the first end 12. The mounting guide groove 6 is used to cooperate with the hose to limit the circumferential position of the hose on the tube body 1.

[0098] Optionally, the outside of the tube body 1 is provided with a disassembly auxiliary groove 7, which is located on the second side of the flange structure 2 facing away from the first end 12. The disassembly auxiliary groove 7 is used to allow tools to enter and clamp the hose.

[0099] In this embodiment, the tube body 1 has a first end 12 for connecting with the flexible tube. To ensure the accurate circumferential position of the flexible tube during insertion, the tube body 1 has an installation guide groove 6 on its exterior. The installation guide groove 6 is located on the first side of the flange structure 2 facing the first end 12, and its main function is to cooperate with the internal structure of the flexible tube, such as the protrusion on the inner wall of the flexible tube. By cooperating with the protrusion on the inner wall of the flexible tube, the circumferential position of the flexible tube during insertion can be restricted, ensuring the accurate angle of the flexible tube relative to the tube body 1, thereby achieving directional installation and providing a precise directional installation effect. Furthermore, the installation guide groove 6 is disposed on the first guide slope 3, which not only enhances the guiding function during insertion but also improves the stability and reliability of the installation.

[0100] In addition, to assist in the disassembly of the hose, a disassembly auxiliary groove 7 is provided on the outside of the hose body 1. The disassembly auxiliary groove 7 is located on the second side of the flange structure 2 facing away from the first end 12, specifically on the hose body 1 between the second guide slope 4 and the limiting structure 5. This design allows tools to be inserted into the disassembly auxiliary groove 7 to clamp the hose during disassembly, making the disassembly operation easier. The disassembly auxiliary groove 7 not only improves the convenience of disassembly but also reduces the risk of damage to the hose and sealing joint 100, further enhancing the practicality and economy of the sealing joint 100.

[0101] In some embodiments, the mounting guide groove 6 is spirally advanced along a first direction to form a spiral around the first direction.

[0102] In this embodiment, the mounting guide groove 6 is designed with a spiral progression along the first direction, forming a spiral line around the first direction. This design makes the mounting guide groove 6 not a simple linear structure, but rather has a more complex geometry. Especially for the embodiment where the mounting guide groove 6 is located on the first guide slope 3, this spiral progression design not only increases the actual length of the mounting guide groove 6 on the first guide slope 3, but also allows the slope effect of the first guide slope 3 to spread over a longer scale.

[0103] Specifically, the spiral-progressive design of the mounting guide groove 6 means that during hose insertion, the hose is guided not only axially but also circumferentially, with the hose's installation direction aligned with the spiral. This design significantly reduces the difficulty of hose installation because the hose can gradually adjust its position along the spiral during insertion, rather than aligning with a fixed linear groove all at once. This spiral design increases the contact length between the hose and the mounting guide groove 6, thereby improving the stability and accuracy of the insertion process.

[0104] Through this spiral-progressive design, the installation guide groove 6 can more effectively guide the hose along the predetermined path for insertion, reducing resistance and deviation during the insertion process. This not only improves the ease of hose insertion but also enhances the connection stability between the hose and the hose body 1, ensuring that the sealing joint 100 maintains good sealing performance under various operating conditions.

[0105] This application also provides a pipeline sealing connection structure, including a connector, a hose and the aforementioned sealing joint 100, wherein the sealing joint 100 connects the connector and the hose.

[0106] In this embodiment, the sealing joint 100 is used to achieve a reliable connection between the connector and the hose. Since the pipeline sealing connection structure integrates the sealing joint 100, it naturally possesses all the beneficial technical effects of the sealing joint 100, such as improving the convenience of hose installation and disassembly, enhancing sealing performance, and reducing operation difficulty and cost, etc. These advantages will not be described in detail here.

[0107] In this pipeline sealing connection structure, the connector can be a device-end connector used to connect the pipeline system to various devices. This design allows the pipeline sealing connection structure to be widely used in different devices and systems, ensuring the sealing and reliability of fluid transmission. By using the aforementioned sealing joint 100, this pipeline sealing connection structure not only guarantees sealing performance but also greatly improves the convenience and economy of operation, making it suitable for various industrial and commercial applications.

[0108] It should be noted that many of the components mentioned in this application are general standard parts or components known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or through conventional experimental methods.

[0109] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0110] The sealing joint and pipeline sealing connection structure provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A sealing joint, characterized in that, include: The tube body has an internal connecting channel extending along a first direction of the tube body; A flange structure is provided on the outside of the tube body. In a second direction of the tube body, the flange structure is disposed away from the tube body, and the second direction is perpendicular to the first direction. The tube body is provided with a first end for connecting to the flexible tube; On the first side of the flange structure facing the first end, a first guide slope is provided on the outside of the tube body. The first guide slope is used to guide the hose during insertion. On the second side of the flange structure opposite to the first end, a second guide slope is provided on the outside of the tube body. The second guide slope is used to guide the hose when it is pulled out.

2. The sealing joint according to claim 1, characterized in that, The tube body is provided with a first end for connecting to the flexible tube; The sealing joint also includes: A limiting structure is provided outside the tube body. In a first direction of the tube body, the limiting structure is located on the second side of the flange structure opposite to the first end. The flange structure is used to limit the hose during insertion.

3. The sealing joint according to claim 1, characterized in that, In the first direction of the tube body, the outside of the tube body is provided with a first guide slope, a flange structure, a second guide slope and a limiting structure in sequence; The dimension of the first guide ramp in the first direction is greater than the dimension of the second guide ramp in the first direction; The distance between the second guide ramp and the limiting structure in the first direction is greater than the dimension of the first guide ramp in the first direction.

4. The sealing joint according to claim 1, characterized in that, The surface roughness of the outer surface of the tube body is between Ra0.4um and Ra1.6um.

5. The sealing joint according to claim 1, characterized in that, The first guide slope has a first guide slope angle with the first direction, and the first guide slope angle is between [10°, 45°].

6. The sealing joint according to claim 5, characterized in that, The included angle of the first guide slope is progressively set, and the included angle of the first guide slope at the first end is greater than the included angle of the first guide slope at the flange structure.

7. The sealing joint according to claim 1, characterized in that, The tube body is provided with a first end for connecting to the flexible tube; The outside of the tube body is provided with an installation guide groove, which is located on the first side of the flange structure facing the first end. The installation guide groove is used to cooperate with the hose to limit the circumferential position of the hose on the tube body. The outside of the tube body is provided with a disassembly auxiliary groove, which is located on the second side of the flange structure opposite to the first end. The disassembly auxiliary groove is used to allow tools to enter and clamp the hose.

8. The sealing joint according to claim 7, characterized in that, The mounting guide groove spirals forward along the first direction, forming a spiral around the first direction.

9. The sealing joint according to claim 1, characterized in that, A chamfer is provided between the second guide slope and the tube body, a chamfer is provided between the second guide slope and the flange structure, and a chamfer is provided between the first guide slope and the first end.

10. A pipeline sealing connection structure, characterized in that, It includes a connector, a hose, and a sealing joint as described in any one of claims 1 to 9, the sealing joint connecting the connector and the hose.

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